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Wuxi, China

Jiangnan University , JU, literally "Southern Yangtze University") is a university located in Wuxi, Jiangsu, China. It is a key national university of the “Project 211” and is directly administrated by the Chinese Ministry of Education. The distinguished disciplines are food science and technology, fermentation engineering and industrial design. Wikipedia.

Chen J.,Jiangnan University
Journal of Chinese Institute of Food Science and Technology | Year: 2013

With the increase of economic level and the improvement of the health concerns, people are increasingly concerned about the safety, nutrition and function of the food. Therefore, functional nutritional chemicals are now the trend of the food industry. Although the chemical functional nutrition has a long history in China, and China has a wealth of herbs and other functional nutritional health products featured resources, our research in this area is still relatively backward. The current review systematically reviewed the concept, characteristics and market of the functional nutritional chemicals, consideration the development of the chemicals in last decades. We hope that the introduction of the status quo of functional nutritional chemicals could provide a reference for the future development of the industry. Source

Zhang P.,Tianjin University | Zhang P.,Jiangnan University | Ma X.,Tianjin University
Chemical Engineering Journal | Year: 2010

Direct synthesis of diethyl carbonate (DEC) by oxidative carbonylation of ethanol offers a prospective " green chemistry" strategy to eliminate the phosgene used in the traditional preparation processes. PdCl2/Cu-HMS catalyst has been investigated, which demonstrated excellent selectivity to DEC by oxidative carbonylation of ethanol in the gas-phase reaction. The Si/Cu molar ratio of mesoporous Cu-HMS supports showed a remarkable effect on catalytic activities. An optimized Si/Cu molar ratio existed for catalytic performance, which was about 50/1. From XPS, ICP, XRD, nitrogen physisorption and IR characterization and analysis, it could be concluded that copper species incorporated into HMS frame and was highly dispersed in the frame of silica. The catalytic performances of PdCl2/Cu-HMS were related with both Cu content in the Cu-HMS and the order degree of mesoporous structure for Cu-HMS. © 2010 Elsevier B.V. Source

Wang Y.X.,Jiangnan University | Cao J.,Nanjing University | Xiong S.J.,Nanjing University
European Physical Journal B | Year: 2012

We investigate theoretically Zitterbewegung behavior of Dirac oscillator after the excitation by a short laser pulse. With the help of the time-dependent perturbation theory, the dipole moments and the corresponding electric fields are calculated. We simulate the asymptotic limiting cases in relativistic and non-relativistic regimes with the quantum optic experiment and the results indicate that the ZB motion and the electromagnetic radiation tend to vanish in both limits. Further we analyze the Fourier frequency spectra of ZB motion. © EDP Sciences, Societá Italiana di Fisica, Springer-Verlag 2012. Source

Chen J.,Jiangnan University
Journal of the Franklin Institute | Year: 2014

This paper presents three identification methods for dual-rate sampled systems. The first method combines the stochastic gradient algorithm with the polynomial transformation technique, which can estimate the parameters of the identification model. The second method is the finite impulse response model based stochastic gradient algorithm, which can indirectly estimate the parameters of the dual-rate systems by using all the inputs and the available outputs. The third method is the missing output estimation model based stochastic gradient algorithm with a forgetting factor, which can directly estimate the parameters of the dual-rate systems by using all the inputs and all the outputs (include the estimated outputs). An example is provided to verify the effectiveness of the proposed methods. © 2013 Published by The Franklin Institute. All rights reserved. Source

Tang C.-D.,Key Laboratory of Industrial Biotechnology | Wang J.-Q.,Key Laboratory of Industrial Biotechnology | Wu M.-C.,Jiangnan University
Journal of Agricultural and Food Chemistry | Year: 2012

A cDNA fragment of the Anman5A, a gene that encodes an acidophilic β-mannanase of Aspergillus niger LW-1 (abbreviated as AnMan5A), was cloned and functionally expressed in Pichia pastoris. Homology alignment of amino acid sequences verified that the AnMan5A belongs to the glycoside hydrolase (GH) family 5. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) assay demonstrated that the recombinant AnMan5A (reAnMan5A), a N-glycosylated protein with an apparent molecular weight of 52.0 kDa, was secreted into the medium. The highest reAnMan5A activity expressed by one P. pastoris transformant, labeled as GSAnMan4-12, reached 29.0 units/mL. The purified reAnMan5A displayed the highest activity at pH 3.5 and 70 °C. It was stable at a pH range of 3.0-7.0 and at a temperature of 60 °C or below. Its activity was not significantly affected by an array of metal ions and ethylenediaminetetraacetic acid (EDTA). The Km and Vmax of the reAnMan5A, toward locust bean gum, were 1.10 mg/mL and 266.7 units/mg, respectively. © 2011 American Chemical Society. Source

He S.,Anhui University | Liu F.,Jiangnan University
IEEE Transactions on Fuzzy Systems | Year: 2012

This paper studies the finite-time H ∞ control problem for time-delay nonlinear jump systems via dynamic observer-based state feedback by the fuzzy Lyapunov-Krasovskii functional approach. The Takagi-Sugeno (T-S) fuzzy model is first employed to represent the presented nonlinear Markov jump systems (MJSs) with time delays. Based on the selected Lyapunov-Krasovskii functional, the observer-based state feedback controller is constructed to derive a sufficient condition such that the closed-loop fuzzy MJSs is finite-time bounded and satisfies a prescribed level of H ∞ disturbance attenuation in a finite time interval. Then, in terms of linear matrix inequality (LMIs) techniques, the sufficient condition on the existence of the finite-time H ∞ fuzzy observer-based controller is presented and proved. The controller and observer can be obtained directly by using the existing LMIs optimization techniques. Finally, a numerical example is given to illustrate the effectiveness of the proposed design approach. © 1993-2012 IEEE. Source

Zhang W.,Wuhan Polytechnic University | Xia W.,Jiangnan University
International Journal of Biological Macromolecules | Year: 2015

The effect of media milling on lipid-lowering and antioxidant activities of chitosan was studied in rats fed high-fat diets. Results showed that media-milled chitosan was more effective than chitosan in reducing body weight gain and liver fat accumulation of rats. Compared with chitosan, the reducing effects of media-milled chitosan on serum triacylglycerol (TG), total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C) were increased by 10.1, 7.5 and 10.2%, and liver TG and TC-reducing effects were increased by 16.2 and 14.6%, respectively. Rats fed media-milled chitosan showed decreased levels of free fatty acid (FFA) and thiobarbituric acid-reactive substances (TBARS) and increased superoxide dismutase (SOD) activity. The cholesterol and fat in feces of rats fed media-milled chitosan were higher than those of rats fed chitosan. These results suggested media milling enhanced the lipid-lowering and antioxidant activities of chitosan, and the reason might be partly due to its effect on strengthening the ability of chitosan in promoting fecal lipid excretions. © 2014 Elsevier B.V. Source

Gao Q.-H.,Northwest University, China | Wu C.-S.,Jiangnan University | Wang M.,Northwest University, China | Xu B.-N.,Northwest University, China | Du L.-J.,Northwest University, China
Journal of Agricultural and Food Chemistry | Year: 2012

This study investigated the changes in sugars, organic acids, α-tocopherol, β-carotene, phenolic profiles, total phenolic content (TPC), and antioxidant capacity of jujube fruits after four drying treatments (sun-, oven-, microwave- and freeze-drying). Sugar, organic acid, phenolic compounds, α-tocopherol, and β-carotene were qualitatived and quantitatived by high-performance liquid chromatography. The TPC and antioxidant activity of jujube samples were evaluated using the Folin-Ciocalteau method and 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) radical scavenging activity, respectively. Freeze-drying resulted in jujubes with higher antioxidant activity and was also a good choice for the preparation of β-carotene from jujubes for the food industry. Microwave-dried jujubes had a higher content of protocatechuic acid, catechin, and epicatechin and maintained the same antioxidant capacity with the freeze-dried jujubes. The combination of microwave- and freeze-drying may be an efficient alternative with shorter processing time and, consequently, less impact on the nutritional value of the jujube. © 2012 American Chemical Society. Source

Chen Y.,University of Hohenheim | Chen Y.,Jiangnan University | Schwack W.,University of Hohenheim
Journal of Chromatography A | Year: 2014

In the European Union (EU), sulfonamides are among the most widely administrated groups of antibiotics in animal husbandry. Therefore, monitoring their residues in edible animal tissues plays an important role in the EU food safety framework. In this work, a simple and efficient method for the rapid screening of twelve prior sulfonamides frequently prescribed as veterinary drugs by high-performance thin-layer chromatography (HPTLC) was established. Sample extracts obtained with acetonitrile were tenfold concentrated and applied to HPTLC without any further cleanup. Following separation and fluram derivatization, sensitive and selective quantitation of the analytes can readily be accomplished with fluorescent densitometry. Limits of detection and quantitation were 15-40 and 35-70. μg/kg, respectively. Additionally, a confirmative detection by HPTLC-electrospray ionization mass spectrometry (HPTLC-ESI/MS) was optimized, offering straightforward identification of target zones. Therefore, the risk of potential false positive findings can efficiently be reduced. The method was validated to meet the enforced commission regulation (EU) No. 37/2010, regarding different matrix complexities (bovine milk, porcine liver and kidney). © 2014 Elsevier B.V. Source

Chen J.,Jiangnan University
Kongzhi yu Juece/Control and Decision | Year: 2015

This paper presents a novel identification method for a dual-rate sampled data system with preload nonlinearity. By using a switching function, the nonlinear system is turned into an identification model. Then a missing output identification model based recursive least-squares algorithm is derived to identify the parameters of the system by all the inputs and outputs. Compared with the polynomial transformation technique, this method can estimate the unknown parameters directly and can decrease the number of the unknown parameters. The simulation results show the effectiveness of the proposed algorithm. ©, 2015, Northeast University. All right reserved. Source

Chen Y.,University of Hohenheim | Chen Y.,Jiangnan University | Schwack W.,University of Hohenheim
Journal of Chromatography A | Year: 2014

The world-wide usage and partly abuse of veterinary antibiotics resulted in a pressing need to control residues in animal-derived foods. Large-scale screening for residues of antibiotics is typically performed by microbial agar diffusion tests. This work employing high-performance thin-layer chromatography (HPTLC) combined with bioautography and electrospray ionization mass spectrometry introduces a rapid and efficient method for a multi-class screening of antibiotic residues. The viability of the bioluminescent bacterium Aliivibrio fischeri to the studied antibiotics (16 species of 5 groups) was optimized on amino plates, enabling detection sensitivity down to the strictest maximum residue limits. The HPTLC method was developed not to separate the individual antibiotics, but for cleanup of sample extracts. The studied antibiotics either remained at the start zones (tetracyclines, aminoglycosides, fluoroquinolones, and macrolides) or migrated into the front (amphenicols), while interfering co-extracted matrix compounds were dispersed at hRf 20-80. Only after a few hours, the multi-sample plate image clearly revealed the presence or absence of antibiotic residues. Moreover, molecular information as to the suspected findings was rapidly achieved by HPTLC-mass spectrometry. Showing remarkable sensitivity and matrix-tolerance, the established method was successfully applied to milk and kidney samples. © 2014 Elsevier B.V. Source

Ren S.-C.,Henan University of Technology | Qiao Q.-Q.,Henan University of Technology | Ding X.-L.,Jiangnan University
Czech Journal of Food Sciences | Year: 2013

Five flavones glycosides (i.e., 2''-O-a-l-rhamnosyl-6-C-3''deoxyglucosyl- 3'-methoxyluteolin, ax-5'-methane-3'- methoxymaysin, ax-4''-OH-3'-methoxymaysin, 6,4'-dihydroxy-3'-methoxyflavone-7-O-glucoside, and 7,4'-dihydroxy- 3'-methoxyflavone-2''-O-a-l-rhamnosyl-6-C-fucoside) were successfully isolated from corn silk and identified. We evaluated their antioxidant activity among in vitro assay systems. Most of the flavones glycosides showed a high antioxidant activity in a lecithin liposome system, as well as a strong scavenging activity against radicals such as 1,1-diphenyl-2-picrylhydrazyl (DPPH), superoxide, and hydroxyl radicals. The study indicated that the corn silk flavonoids, especially 6, 4'-dihydroxy- 3'-methoxyflavone-7-O-glucoside, may be beneficial natural food antioxidants. © 2011 Czech Academy of Agricultural Sciences. Source

Lu X.-Y.,Jiangnan University
Energy Education Science and Technology Part A: Energy Science and Research | Year: 2014

Methods the virtual prototype simulation for this article, in the research phase of product design, were observed, recorded and compared to the construction of steel structure of tower crane and tower body, no limit element analysis, combined with the software and research, supplement each other the tower stress dangerous location, then fatigue analysis, fatigue tower personal data analysis. At the same time, provides certain reference for the other tower crane parts design. See through the dynamic simulation which can load position, the tower was affected by lifting acceleration and deceleration influence as well as acceleration and deceleration and the emergence of a transient vibration, the tower body string truss welding position to produce the initial crack, have very big effect. By comparison the lifting (rotary) velocity is small. The hoisting (rotation) motion acceleration, dynamic system as well as the impact of wind load can make the machine has been in a slight vibration, if unreasonable design, power system and the inherent frequency, the vibration is more intense, the driver long time in such an environment, will produce the body the discomfort, a long time will cause harm to the safety of construction, it should consider the as design. © Sila Science. All Rights Reserved. Source

Fang Y.-Q.,Jiangnan University
Chinese Journal of Biologicals | Year: 2015

Objective: To improve the thermo-stability and catalytic activity of thermo-sensitive nitrile hydratase (NHase, EC 4. 2. 1. 84) of Psedomonas putida NRRL-18668 by molecular modification using computer-aided semi-rational design. Methods: Homologous target fragments were screened by site-targeted amino acid recombination (STAR) software and molecular dynamic modeling using the NHases from Pseudonocardia thermophila JCM3095 and Comamonas testosterone 5-MGAM-4D as templates respectively. Seven chimeric NHases were generated by homologous fragment swapping on the corresponding fragment of NHase from Psedomonas putida NRRL-18668, and determined for thermo-stability and activity. The secondary structures of wild-type NHase and chimeric NHase 3AB were analyzed by circular dicroism (CD) spectrometry. Results: Compared with that of wild-type NHase, the thermo-stabilities of seven chimeric NHases (1A, 2B, 2C, 2BC, 3AB, 3AC and 3ABC) after treatment at 50 °C for 10 min increased by 1. 5 ∼3. 5 folds. The thermo-stability and activity of NHase 3AB increased by 3. 5 and 1. 4 folds respectively. The α-helixe contents in secondary structures of wild-type NHase and chimeric NHase 3AB were (34. 56 ± 3. 21)% and (36. 88 ± 1. 41)%, while the (3-sheet contents were (19. 78 ± 2. 14)% and (18. 69 ± 1. 74)%, respectively. Conclusion: The thermo-sensitive NHase was rationally engineered to sets of thermo-stable chimeric enzyme using homologous fragment swapping by substituting themo-sensitive domains with homologous thermo-stable domain, of which the specific activity increased without alteration in secondary structure. Source

Zhang H.,University of Alabama in Huntsville | Kong X.-Z.,Jiangnan University
Computational Geometry: Theory and Applications | Year: 2016

Let G=(V,E) and G′=(V′,E′) be two graphs. A k-inverse-adjacency-preserving mapping ρ from G to G′ is a one-to-many and onto mapping from V to V′ satisfying the following: (1) Each vertex vεV in G is mapped to a non-empty subset ρ(v)⊂V′ in G′, the cardinality of ρ(v) is at most k; (2) if u≠v, then ρ(u)∩ρ(v)=θ; and (3) for any u′ερ(u) and v′ερ(v), if (u′,v′)εE′, then (u,v)εE. A vertex u′ in ρ(u) is called a virtual location for u. Let ρ be a k-inverse-adjacency-preserving-mapping (k-IAPM for short) from G to G′. Let δ be a greedy drawing of G′ into a metric space M. Consider a message from u to be delivered to v in G. Using the k-IAPM ρ from G to G′, intuitively, one can treat the message to be routed as if it were from one virtual location u′ for u to one virtual location v′ for v, except that all the virtual locations of a vertex u were identified with each other (which can be thought as instantaneously synchronized mirror sites for a particular website, for example). Then a routing path P′ can be computed from u′ to v′ while identifying all virtual locations for any vertex in G. Since ρ inversely preserves adjacency from G′ to G, such a routing path P′ corresponds to exactly one routing path P in G, which connects u to v. In this paper, we formalize the above intuition into a concept which we call k-greedy routing algorithm for a graph G with n vertices, where k refers to the maximum number of virtual locations any vertex of G can have. Using this concept, the result presented in [18] can be rephrased as a 3-greedy routing algorithm for 3-connected plane graphs, where the virtual coordinates used are from 1 to 2n-2. In this paper, we present a 2-greedy routing algorithm for 3-connected plane graphs, where each vertex uses at least one but at most two virtual locations numbered from 1 to 2n-1. For the special case of plane triangulations (in a plane triangulation, every face is a triangle, including the exterior face), the numbers used are further reduced to from 1 to ⌊5n+13⌊. Hence, there are at least ⌈n-13⌈ vertices that use only one virtual location. © 2015 Elsevier B. V. All rights reserved. Source

He S.,Anhui University | Liu F.,Jiangnan University
Neurocomputing | Year: 2013

The stochastic finite-time boundedness (FTB) problem is considered for a class of Markovian jumping neural networks (MJNNs) with time delay and uncertainties. By selecting the appropriate stochastic Lyapunov-Krasovskii functional, sufficient conditions of stochastic FTB of MJNNs are presented and proved. The FTB criteria are formulated in the form of linear matrix inequalities. Simulation results illustrate the effectiveness of the developed approaches. © 2012 Elsevier B.V. Source

Liu Y.,Jiangnan University | Lin Y.,Slippery Rock University
Applied Soft Computing Journal | Year: 2015

Due to the complexity and uncertainty of the objective world, as well as the limitation of human ability to understand, it is difficult for one to employ only a single type of uncertainty method to deal with the real-life problem of decision-making, especially problems involving conflicts. On the other hand, by incorporating the advantages of various theories of uncertainty, one is expected to develop a more powerful hybrid method for soft decision making and to solve such problems more effectively. In view of this, in this paper the thought and method of intuitionistic fuzzy set and rough set are used to construct a novel intuitionistic fuzzy rough set model. Corresponding to the fact that the decision-making information system of rough sets is of intuitionistic fuzzy information system, our method defines the conflict distance by using the idea of measuring intuitionistic fuzzy similarity so that it is introduced into the models of rough sets, leading to the development of our intuitionistic fuzzy rough set model. After that, we investigate the properties of the model, introduce a novel tool for conflict analysis based on our hybrid model, and employ this new tool to describe and resolve a real-life conflict problem. © 2015 Elsevier B.V. All rights reserved. Source

Ji W.,University of Minnesota | Panus D.,University of Minnesota | Palumbo R.N.,University of Minnesota | Tang R.,Jiangnan University | Wang C.,University of Minnesota
Biomacromolecules | Year: 2011

Poly(2-aminoethyl methacrylate) (PAEM) homopolymers with defined chain length and narrow molecular weight distribution were synthesized using atom transfer radical polymerization (ATRP), and a comprehensive study was conducted to evaluate the colloidal properties of PAEM/ plasmid DNA polyplexes, the uptake and subcellular trafficking of polyplexes in antigen-presenting dendritic cells (DCs), and the biological performance of PAEM as a potential DNA vaccine carrier. PAEM of different chain length (45, 75, and 150 repeating units) showed varying strength in condensing plasmid DNA into narrowly dispersed nanoparticles with very low cytotoxicity. Longer polymer chain length resulted in higher levels of overall cellular uptake and nuclear uptake of plasmid DNA, but shorter polymer chains favored intracellular and intranuclear release of free plasmid from the polyplexes. Despite its simple chemical structure, PAEM transfected DCs very efficiently in vitro in media with or without serum and led to phenotypic maturation of DCs. When a model antigen-encoding ovalbumin plasmid was used, transfected DCs stimulated the activation of nai ̈ve CD8+ T cells to produce high levels of interferon-γ. The efficiency of transfection, DC maturation, and CD8+ T cell activation showed varying degrees of polymer chainlength dependence. These structurally defined cationic polymers may have much potential as efficient DNA vaccine carriers and immunostimulatory adjuvants. They may also serve as a model material system for elucidating structural and intracellular mechanisms of polymer-mediated DNA vaccine delivery. © 2011 American Chemical Society. Source

Chen A.-J.,Jiangnan University | Chen A.-J.,Key Laboratory of Food Packaging Techniques and Safety of China National Packaging Corporation
Mathematical Problems in Engineering | Year: 2013

The coupled nonlinear dynamical equations were developed for a tilted spring packaging system with critical components. The approximate solution and resonance conditions of system were obtained applying a variational iteration method. The resonance conditions, which should be avoided in the packaging design, can be easily obtained by VIM. © 2013 An-Jun Chen. Source

Min R.,Jiangnan University
Wei sheng wu xue bao = Acta microbiologica Sinica | Year: 2013

To reveal the correlation between thermostability of xylanase EvXyn11(TS) and its N-terminal disulfide bridge, an EvXyn11(TS)-encoding gene (Syxyn11) was synthesized and subjected to site-directed mutagenesis. Multiple homology alignment of protein primary structures between the EvXyn11(TS) and several GH family 11 xylanases displayed that, in their N-termini, only EvXyn11(TS) contained a disulfide bridge (Cys5-Cys32), whose effect on the xylanase thermostability was predicted by molecular dynamics simulation. We constructed a gene Syxyn11(M), encoding the mutated xylanase (EvXyn11(M)) without N-terminal disulfide bridge. Then, Syxyn11 and Syxyn11(M) were expressed in Pichia pastoris GS115, and temperature and pH properties of the expressed enzymes were analyzed. The analytical results displayed that the temperature optimum of EvXyn11(M) was 70 degrees C, which was 15 degrees C lower than that of EvXyn11(TS). The half-life (t1/2(90)) of EvXyn11(TS) at 90 degrees C was 32 min, while the t1/2(70) of EvXyn11(M) at 70 degrees C was only 8.0 min. The important role of the N-terminal disulfide bridge on the thermostability of EvXyn11(TS) was first predicted by molecular dynamics simulation, and confirmed by site-directed mutagenesis. This work provided a novel strategy to improve thermostabilities of the mesophilic family 11 xylanases with high specific activities. Source

Zhao J.,Jiangnan University | Zhao J.,Bauhaus University Weimar | Jiang J.-W.,Bauhaus University Weimar | Wang L.,Nanjing University of Aeronautics and Astronautics | And 2 more authors.
Journal of the Mechanics and Physics of Solids | Year: 2014

We develop the coarse-grained (CG) potentials of single-walled carbon nanotubes (SWCNTs) in CNT bundles and buckypaper for the study of the static and dynamic behaviors. The explicit expressions of the CG stretching, bending and torsion potentials for the nanotubes are obtained by the stick-spiral and the beam models, respectively. The non-bonded CG potentials between two different CG beads are derived from analytical results based on the cohesive energy between two parallel and crossing SWCNTs from the van der Waals interactions. We show that the CG model is applicable to large deformations of complex CNT systems by combining the bonded potentials with non-bonded potentials. Checking against full atom molecular dynamics calculations and our analytical results shows that the present CG potentials have high accuracy. The established CG potentials are used to study the mechanical properties of the CNT bundles and buckypaper efficiently at minor computational cost, which shows great potential for the design of micro- and nanomechanical devices and systems. © 2014 Elsevier Ltd. Source

Ding F.,Jiangnan University | Liu P.X.,Carleton University | Liu G.,Ryerson University
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics | Year: 2010

A multiinnovation least-squares (MILS) identification algorithm is presented for linear regression models with unknown parameter vectors by expanding the innovation length in the traditional recursive least-squares (RLS) algorithm from the viewpoint of innovation modification. Because the proposed MILS algorithm uses ρ innovations (not only the current innovation but also past innovations) at each iteration (with the integer ρ>1 being an innovation length), the accuracy of parameter estimation is improved, compared with that of the RLS algorithm. Performance analysis and simulation results show that the proposed MILS algorithm is consistently convergent. Moreover, a new interval-varying MILS algorithm is proposed, for which the key is to dynamically change the interval in order to deal with cases where some measurement data are missing. Furthermore, an auxiliary-model-based MILS algorithm is derived for pseudolinear models corresponding to output error moving average systems with colored noises. Finally, the proposed algorithms are applied to model an experimental water level control system. © 2006 IEEE. Source

Xu S.,Jiangnan University | Zhao J.,Nanjing Southeast University
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | Year: 2011

Based on the irregular sampling method, the harmonic characteristics of the CPS-SPWM output voltage of cascaded H-bridge multilevel converters are analyzed in this paper. Simulation and experimental results show that, on condition that the carrier wave frequency defined as ωc is much larger than the sinusoidal modulation wave frequency, the fundamental component of the CPS-SPWM output voltage will lag the modulation wave a quarter of carrier wave period. Additionally, the odd harmonic components mainly distribute near the even times the number of Nωc, while the even harmonic components are eliminated. Source

Ding F.,Jiangnan University
Proceedings of the 2012 24th Chinese Control and Decision Conference, CCDC 2012 | Year: 2012

By means of the data filtering technique, this presents a two-stage least squares based iterative algorithm for systems with colored noises, i.e., controlled autoregressive autoregressive moving average (CARARMA) systems. The key is to obtain two identification models by using the decomposition technique, one including the parameters of the system model, and the other including the parameters of the noise model. Then we use the least squares principle to interactively estimate the parameters of two submodels. The proposed algorithm has lower computational cost and is effective for estimating the parameters of the CARARMA systems. © 2012 IEEE. Source

Guo X.,Jiangnan University | Huang Y.-G.,China Institute of Technology
Journal of Food and Drug Analysis | Year: 2015

Over recent years, an increase in alcohol-related problems has been noted in China. Taking effective measures against the problem requires clear reviewing and understanding of the evolution of the Chinese alcohol policy. This study is aimed to evaluate the alcohol policy with special focus on reviewing the alcohol production and consumption situation in China and assessing the changes in Chinese alcohol policy along with other related fields. This article finishes with a set of recommended policy changes that could help solve the recent alcohol-related problems and analyze the major impediments. © 2014, Food and Drug Administration, Taiwan. Published by Elsevier Taiwan LLC. All rights reserved. Source

Wang D.,Qingdao University | Yang G.,Qingdao University | Ding R.,Jiangnan University
Computers and Mathematics with Applications | Year: 2010

This paper presents a gradient-based iterative identification algorithms for Box-Jenkins systems with finite measurement input/output data. Compared with the pseudo-linear regression stochastic gradient approach, the proposed algorithm updates the parameter estimation using all the available data at each iterative computation (at each iteration), and thus can produce highly accurate parameter estimation. An example is given. © 2010 Elsevier Ltd. All rights reserved. Source

Chen W.,Shenyang Ligong University | Qu B.,Jiangnan University
International Journal of Hydrogen Energy | Year: 2010

A hydrogen peroxide-treated carbon support was used to prepare electrocatalysts for low temperature fuel cells. The electrochemical stability of the Pt/C catalysts was evaluated by potential scan tests. The results show that the oxidative treatment introduces oxygen-bearing functional groups onto the support surface. These functional groups connect with metal nanoparticles via O atoms so as to alleviate the agglomeration of supported nanocatalysts. During the test, the mean particle size of catalysts increased from 2.5 nm and 2.6 nm to 5.3 nm and 4.8 nm for untreated and treated carbon support, respectively. Electrochemical surface area measurements also show that the oxidative treatment of carbon support enhanced the electrochemical stability of Pt/C catalysts. It is suggested that the chemical interaction between the metal particle and the oxygen-bearing functional group plays an important role in immobilizing catalyst nanoparticles. © 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved. Source

Wang B.-X.,Jiangnan University
Plasmonics | Year: 2016

Multi-band or broadband perfect metamaterial absorbers, based on coplanar super-unit structure or multiple vertically stacked layers, have received intense attention because of their potential for practical applications. The resonance mechanism of them usually only utilizes the overlapping of the fundamental resonance of the different-sized patterns, and neglects the high-order resonance of the structure, and thus making the proposed structures quite troublesome to be fabricated and the mechanism of the current demonstrated absorbers lack of novelty. In this paper, a simple design of dual-band terahertz absorber consisted of only a traditional square metallic patch and a dielectric layer on top of a continuous ground plane is presented. Simulation results show that the single resonant structure has two resonance absorption peaks, which are both average over 99.5 %. The mechanism of the dual-band absorber is due to the overlapping of the fundamental mode and three-order response of the patterned structure, which is totally different from previous reports that only combining the fundamental resonances of the different-shaped complex structures to obtain the dual-band response. Furthermore, the proposed single-patterned structure can be used to extend the number of the absorption peaks (for example, triple-band absorber) by combining one more resonance (the five-order response). The proposed absorbers with the simple structure design have potential applications in many areas, such as detection, sensing, and selective thermal emitters. © 2016 Springer Science+Business Media New York Source

Jiang J.,Jiangnan University | Xiong Y.L.,University of Kentucky
Critical Reviews in Food Science and Nutrition | Year: 2015

Ready-to-eat (RTE) muscle foods refer to a general category of meat and poultry products that are fully cooked and consumable without reheating. These products, including whole and sliced pork, beef, turkey, chicken, and variety of meats, in the forms of ham, roast, rolls, sausage, and frankfurter, are widely available in the delicatessen section of retail stores or various food service outlets. However, difficulties in avoidance of contamination by foodborne pathogens, notably Listeria monocytogenes, during product postlethality repackaging render RTE meats labile to outbreaks. Accordingly, the USDA-FSIS has established processing guidelines and regulations, which are constantly updated, to minimize foodborne pathogens in RTE products. Technologies that complement good manufacturing practice have been developed to control RTE meat safety. Among them, various antimicrobial product formulations, postpackaging pasteurization (thermal and nonthermal), and antimicrobial packaging are being used. Through these efforts, outbreaks linked to RTE meat consumption have substantially reduced in recent years. However, the pervasive and virulent nature of L. monocytogenes and the possible presence of other cold-tolerant pathogens entail continuing developments of new intervention technologies. This review updates existing and emerging physical and chemical methods and their mode of action to inactivate or inhibit threatening microorganisms in RTE muscle foods. © 2015, Copyright © Taylor and Francis Group, LLC. Source

Shen X.,Jiangnan University
Micro and Nano Letters | Year: 2012

Highly luminescent and water-soluble CdTe quantum dots encapsulated in polyvinylpyrrolidone nanoparticles (QDs/PNs) have been synthesised by one-pot aqueous route. Fluorescence of the as-prepared QDs/PNs was tunable from 539 to 606nm and photoluminescent quantum yield could reach up to 47. High quality of QDs/PNs was also observed by narrow full-width at half-maximum as small as 36nm in the fluorescence spectra. Using fluorescence microscopy, we demonstrated uptake of QDs/PNs by 293T human renal epithelial cells. Our results suggest that such nanoparticles are potentially powerful tools for fluorescent gene delivery reagent. © 2012 The Institution of Engineering and Technology. Source

Jin X.,Shenyang University | Yang G.,Northeastern University China | Peng L.,Jiangnan University
Asian Journal of Control | Year: 2012

This paper is concerned with the robust adaptive fault-tolerant tracking control problem for a class of distributed delay systems against faulted and perturbed actuators and communications. As all the faults on actuators and communications, network delays in control and communication channels, and perturbations in communications and exogenous disturbances are unknown, some adaptation schemes are developed to adjust controller parameters in real-time for constructing a class of distributed compensation controllers based on the delayed signals. Then, according to the information from the adaptive mechanism, the effect of each actuator and communication fault, network delay, channel perturbation and exogenous disturbance can be eliminated completely by using the proposed distributed adaptive-state feedback controllers. Furthermore, asymptotic tracking results of the distributed closed-loop systems can be achieved based on Lyapunov stability theory. An example is provided to further illustrate the effectiveness of the proposed direct adaptive design technique. Copyright © 2011 John Wiley and Sons Asia Pte Ltd and Chinese Automatic Control Society. Source

Tang R.,Jiangnan University | Ji W.,University of Minnesota | Wang C.,University of Minnesota
Macromolecular Chemistry and Physics | Year: 2011

Amphiphilic block copolymers (PEG-b-PEYM) bearing acid-labile ortho ester pendant chains were synthesized by atom transfer radical polymerization, and the effect of chain-length of the ortho-ester-bearing PEYM block on micelle properties was investigated. The length of the PEYM block affected the critical micelle concentration and pH-dependent average particle size but not the kinetics of side-chain hydrolysis. A hydrophobic dye, Nile red, was loaded in the micelles. Both the loading content and the size of the loaded micelles were influenced by the length of the PEYM block, whereas the release kinetics of Nile red was not. Provided that these acid-labile micelles are completely cell compatible, they are potentially useful bioresponsive nanocarriers for enhancing the efficacy of hydrophobic drugs. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Source

Pan Z.-H.,Jiangnan University
Jisuanji Xuebao/Chinese Journal of Computers | Year: 2012

Negative relation in fuzzy knowledge is differentiated as contradictory negative relation and opposite negative relation in this paper, and a character of fuzzy knowledge is discovered: If two opposite concepts are fuzzy concepts then must exist a "medium" fuzzy concept between them, contrarily if there is medium fuzzy concept between the two concepts then two concepts must be fuzzy concepts. We thus propose that negative relations in fuzzy knowledge included contradictory, opposite and medium negative relation. In order to describe intrinsic properties of these relations, we define a new fuzzy set FSCOM with contradictory negation, opposite negation and medium negation, discuss that characteristics of FSCOM, operations and their properties in FSCOM, as well as relationship with Zadeh' fuzzy set and so on. In next paper which will shows that FSCOM is an effective method for handling the various negations of fuzzy information. Source

Zhang Q.,Nanyang Technological University | Zhang Q.,Jiangnan University | Wang X.,Nanyang Technological University | Li P.-Z.,Nanyang Technological University | And 7 more authors.
Advanced Functional Materials | Year: 2014

Engineering multifunctional nanocarriers for targeted drug delivery shows promising potentials to revolutionize the cancer chemotherapy. Simple methods to optimize physicochemical characteristics and surface composition of the drug nanocarriers need to be developed in order to tackle major challenges for smooth translation of suitable nanocarriers to clinical applications. Here, rational development and utilization of multifunctional mesoporous silica nanoparticles (MSNPs) for targeting MDA-MB-231 xenograft model breast cancer in vivo are reported. Uniform and redispersible poly(ethylene glycol)-incorporated MSNPs with three different sizes (48, 72, 100 nm) are synthesized. They are then functionalized with amino-β-cyclodextrin bridged by cleavable disulfide bonds, where amino-β-cyclodextrin blocks drugs inside the mesopores. The incorporation of active folate targeting ligand onto 48 nm of multifunctional MSNPs (PEG-MSNPs48-CD-PEG-FA) leads to improved and selective uptake of the nanoparticles into tumor. Targeted drug delivery capability of PEG-MSNPs48-CD-PEG-FA is demonstrated by significant inhibition of the tumor growth in mice treated with doxorubicin-loaded nanoparticles, where doxorubicin is released triggered by intracellular acidic pH and glutathione. Doxorubicin-loaded PEG-MSNPs48-CD-PEG-FA exhibits better in vivo therapeutic efficacy as compared with free doxorubicin and non-targeted nanoparticles. Current study presents successful utilization of multifunctional MSNP-based drug nanocarriers for targeted cancer therapy in vivo. Biocompatible, uniform, and redispersible mesoporous silica nanoparticles are developed for cancer-targeted drug delivery in vivo. The folate-functionalized mesoporous silica nanoparticles with a core diameter of 48 nm can deliver sufficient amount of doxorubicin into tumor, resulting in a remarkable tumor-inhibiting effect as compared with those of free doxorubicin and non-targeted nanoparticles. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Source

Zhang H.,Universite de Sherbrooke | Zhang H.,Jiangnan University | Xia H.,University of Sichuan | Zhao Y.,Universite de Sherbrooke
ACS Macro Letters | Year: 2014

A unique property of photothermal effect-based shape-memory polymers (SMPs) is demonstrated using a chemically cross-linked poly(ethylene oxide) (PEO) loaded with a small amount (0.5 wt %) of gold nanoparticles (AuNPs). We show that controlled surface plasmon resonance absorption of AuNPs allows for the formation of a temperature gradient in the polymer of temporary shape, which results in anisotropic polymer chain relaxation and strain energy release. This photoinduced temperature gradient effect enables the use of a laser to create a multitude of deformations and to control sophisticated motion executing mechanical work that are otherwise inaccessible with SMPs. (Figure Presented). © 2014 American Chemical Society. Source

Zheng Z.-P.,Jiangnan University | Zheng Z.-P.,University of Hong Kong | Tan H.-Y.,University of Hong Kong | Wang M.,University of Hong Kong
Fitoterapia | Year: 2012

The phytochemical profiles of Morus australis roots, stems and twigs were firstly compared by HPLC analysis. It was found that Morus australis stem extract mainly contained one known tyrosinase inhibitor, oxyresveratrol, while its root and twig extract might contain some unknown potential tyrosinase inhibitors. The root extract of Morus australis was further investigated in this study. One new compound, austraone A, together with 21 known compounds, was isolated and their structures were identified by interpretation of MS and NMR data. In the tyrosinase inhibitory testing, some of them, such as oxyresveratrol, moracenin D, sanggenon T, and kuwanon O, exhibited stronger tyrosinase inhibitory activities than that of kojic acid. These results suggested the Morus australis root extract as a good source of natural tyrosinase inhibitors with a great potential to be used in foods as anti-browning agents and in cosmetics as skin-whitening agents. © 2012 Elsevier B.V. All rights reserved. Source

Yu J.,East China Normal University | Fan H.,Wuhan University of Technology | Huang J.,East China Normal University | Huang J.,Wuhan University of Technology | And 2 more authors.
Soft Matter | Year: 2011

Supramolecular hydrogels based on cyclodextrin/polymer inclusion are an emerging injectable biomaterial for drug controlled-release and cell capsulation. Although the pH- and temperature-sensitivity has been focused on contributing to intelligence, the system sensitive to physiological reduction condition caused by glutathione tripepetide (GSH) has not been reported so far. In this work, novel reduction-sensitive supramolecular hydrogels were, for the first time, fabricated by the inclusion of [poly(ethylene glycol) monomethyl ether]-graft-[disulfide-linked poly(amido amine)] (mPEG-g-SS-PAA) with α-cyclodextrin (α-CD) in aqueous solution. The reduction-sensitivity was ascribed to the disulfide linker in the SS-PAA main chain while various physical conjugations contributed to a reversible gel-sol transition under shearing as a key of injectable function. The drug release from such a supramolecular hydrogel showed a prominent sustained release profile, and the release rate could further be regulated depending upon the reduction condition. It is worth noting that incorporating a low loading-level of reducing agent did not inhibit the formation of hydrogel. As a result, it became possible to use the reduction-sensitivity to regulate the drug release profile in extracellular milieus and normal tissue. Combined with acceptable cytotoxicity, this kind of reduction-sensitive supramolecular hydrogel based on cyclodextrin/polymer inclusion showed a great potential as an injectable smart biomaterial for the application of drug controlled-release. © 2011 The Royal Society of Chemistry. Source

Dong H.,Jiangnan University
Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao/Journal of Computer-Aided Design and Computer Graphics | Year: 2012

High quality 3D facial modeling from images is an important problem in computer vision and graphics. Unlike traditional narrow-baseline multi-view geometry and data driven shape blending facial modeling from images, we propose a new technique for high quality facial modeling from images by deforming a template mesh model using Laplacian mesh deformation and color consistency metric defined by all input images. Given a few facial images taken from different viewpoints, we first do sparse stereo matching from matched robust image feature points to recover camera extrinsic parameters and a few 3D matched points. Then an image based mesh deforming process is employed to deform a 3D facial template to make the color intensities of visible images consistent. Template based deformation avoids the difficulty due to the occlusion in images. In addition, the robust estimation technique reduces the influence of image noise, outliers and surface highlights. Multi-stage nonlinear optimization improves the quality of facial modeling. Experimental results using synthetic and real images show that our method provides stable and quality facial reconstruction results from wide-baseline images. Source

Liu X.,Jiangnan University | Sun C.-H.,University of Florida | Jiang P.,University of Florida
Chemistry of Materials | Year: 2010

Arrays of microcontainers, which allow handling and isolating a small volume of liquids, are of great technological importance in the miniaturization of analytical and bioanalytical techniques. Here we report a scalable bottom-up approach for fabricating wafer-sized, periodic arrays of metallic Petri dishes with a volume as small as 10 attoliter/dish. A monolayer, nonclose-packed colloidal crystal prepared, by a spincoating technology is first used as a structural template to create ordered microwells with vertical sidewalk Sputtering deposition of metals on the microwells, followed by removal of template, results in the formation of isolated metallic Petri, dishes. The size, separation, depth, thickness, and metal types of the resulting Petri dishes can be easily tuned by adjusting the size of the colloidal microspheres and the templating conditions. We have also demonstrated that, templated gold Petri dish arrays show strong surface-enhanced Raman scattering from adsorbed benzenethiol molecules. This bottom-up technology is compatible with standard microfabrication, promising for applications ranging from biomicroanalysis to surface plasmon devices. © 2010 American Chemical Society. Source

Xiao Q.,Hunan Agricultural University | Tong Q.,Jiangnan University
Food Research International | Year: 2013

Moisture sorption isotherms of pure pullulan, alginate and blend films were determined using the gravimetric method at 25, 35 and 45°C. The five-parameter Guggenheim-Anderson-de Boer (GAB) model was used to fit the isotherm data from the experiments by nonlinear regression. Additionally, the experimental data were used to determine the thermodynamic parameters for pullulan-alginate based films. Net isosteric heat values for the films decreased exponentially with increasing moisture content, and approached to zero after around 0.25g/H2Og dry basis. Pure pullulan films exhibited lowest differential entropy values at a high moisture content range, whereas pure alginate films showed the lowest differential entropy values with increasing moisture content from 0.05 to 0.17g/H2Og dry basis. Net integral entropy values for pullulan, alginate and blend films were observed to decrease to each minimum value, and then increase with moisture content increases. Moreover, according to the enthalpy-entropy compensation theory, the sorption mechanism for all tested films was enthalpy-controlled. The thermodynamic information obtained from this study is essential for designing equipment and standardized drying process for pullulan-sodium alginate based edible films. © 2013 Elsevier Ltd. Source

He Z.,Jiangnan University
Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials | Year: 2011

To analyze the volatile compounds of Antrodia camphorata in solid-state and submerged cultures. A headspace solid-phase microextraction (HS-SPME) coupled with gas chromatography-mass spectrometry(GC-MS) were used to evaluate the profile of the volatile compounds. 49 volatile compounds were identified in A. camphorata mycelia in submerged culture, while 43 volatile compounds were identified in mycelia in solid-state culture. 1-octen-3-ol, 3-octanone, 1-octen-3-ylacetate, acetic acid octyl ester and ethanol were the main volatile compounds in A. camphorata mycelia in submerged culture, while 1-octen-3-ol, 3-octanone, 3-methyl-butyraldenhyde, gamma-podecalactone and methyl 2-furozte were the most potent key volatile compounds in mycelia in solid-state culture. The volatile compounds in the mycelia of A. camphorata in solid-state and submerged cultures are similar but their relative contents are different. Source

Wang D.-Q.,Qingdao University | Ding F.,Jiangnan University
IEEE Signal Processing Letters | Year: 2012

This letter focuses on identification problems of a Hammerstein-Wiener system with an output error linear element embedded between two static nonlinear elements. A hierarchical least squares algorithm is presented for the Hammerstein-Wiener system by using the auxiliary model identification idea and the hierarchical identification principle. The major contributions of the present study are that the identification model is formulated by using the auxiliary model identification idea (the estimate of the unknown internal variable is replaced with the output of an auxiliary model) and that the bilinear parameter vectors in the identification model are estimated by using the hierarchical identification principle. The proposed hierarchical identification approach is computationally more efficient than the existing over-parametrization method. © 1994-2012 IEEE. Source

Zhou J.,Jiangnan University
Sub-cellular biochemistry | Year: 2012

Vitamin C, an important organic acid, is widely used in the industries of pharmaceuticals, cosmetics, food, beverage and feed additives. Compared with the Reichstein method, biotechnological production of vitamin C is an attractive approach due to the low cost and high product quality. In this chapter, biosynthesis of vitamin C, including one-step fermentation processes and two-step fermentation processes are discussed and compared. Furthermore, the prospects of the biotechnological production of vitamin C are also presented. Source

Hu X.,Jiangnan University
Sub-cellular biochemistry | Year: 2012

S-Adenosyl-L-methionine is an important bioactive sulfur-containing amino acid. Large scale preparation of the amino acid is of great significance. S-Adenosyl-L-methionine can be synthesized from L-methionine and adenosine triphosphate in a reaction catalyzed by methionine adenosyltransferase. In order to enhance S-adenosyl-L-methionine biosynthesis by industrial microbial strains, various strategies have been employed to optimize the process. Genetic manipulation has largely focused on enhancement of expression and activity of methionine adenosyltransferase. This has included its overexpression in Pichia pastoris, Saccharomyces cerevisiae and Escherichia coli, molecular evolution, and fine-tuning of expression by promoter engineering. Furthermore, knocking in of Vitreoscilla hemoglobin and knocking out of cystathionine-β-synthase have also been effective strategies. Besides genetic modification, novel bioprocess strategies have also been conducted to improve S-adenosyl-L-methionine synthesis and inhibit its conversion. This has involved the optimization of feeding modes of methanol, glycerol and L-methionine substrates. Taken together considerable improvements have been achieved in S-adenosyl-L-methionine accumulation at both flask and fermenter scales. This review provides a contemporary account of these developments and identifies potential methods for further improvements in the efficiency of S-adenosyl-L-methionine biosynthesis. Source

Liang L.,Jiangnan University | Liang L.,Laval University | Subirade M.,Laval University
Food Chemistry | Year: 2012

The major protein in bovine milk whey, β-lactoglobulin (β-LG), has several binding sites for ligands. Its interactions with folic acid (a hydrophilic compound), resveratrol (amphiphilic) and α-tocopherol (hydrophobic) at neutral and acidic pH and after heating to 85°C were studied using fluorescence quenching. Binding of folic acid occurs in a hydrophobic pocket in the groove between the α-helix and the β-barrel and is disturbed by decreasing the pH from 7.0 to 2.0. Resveratrol binds to the outer surface of β-LG near Trp19-Arg124 to form complexes that are stable at acidic pH. Acidification caused the release of α-tocopherol bound to the internal cavity but had no influence on that bound to a site at the surface of β-LG. The β-LG/folic acid complex was thermally stable. Thermal denaturing improved the affinity of the protein for resveratrol but decreased somewhat its affinity for α-tocopherol. These results should help guide the development of formulations based on β-LG as a carrier of a wide range of bioactive nutrients. © 2011 Elsevier Ltd. All rights reserved. Source

Jiang J.,Jiangnan University | Xiong Y.L.,University of Kentucky | Newman M.C.,University of Kentucky | Rentfrow G.K.,University of Kentucky
Food Chemistry | Year: 2012

The effect of pH-shifting, a process that induces the molten globule state in proteins, on the film-forming potential of soy protein isolate (SPI) at different temperatures was investigated. Partial unfolding at pH 1.5 or 12, followed by refolding at pH 7.0, was performed to alter the protein structure. Glycerin-plasticised films were prepared from pH-treated SPI at ambient temperature (20°C), or by heating at 50, 60, 70, or 80°C (30 min). Tensile strength (TS), elongation at break (EAB), water vapour permeability (WVP), protein solubility (pH 3-7), and non-participating proteins of films were analysed, and the film microstructures were examined. The pH 12-treated SPI spontaneously formed a transparent, slightly yellowish film at 20°C, which had the greatest EAB, while pH 1.5-treated and native SPIs required preheating at 50 and 70°C, respectively, to form a film. Heating generally decreased solubility and WVP but increased TS. Films formed from both pH 12- and pH 1.5-treated SPIs were more elastic (up to 2-fold greater in EAB, P < 0.05) than the film formed from untreated SPI despite slightly reduced TS and WVP. Electrophoresis revealed disulphide bonds between A and B subunits of glycinin being a dominant force in pH 12- and pH 1.5-treated SPI films, while noncovalent forces were abundant in untreated SPI films. The pH 12-treated SPI film consisted of more interactive protein strands than other SPI films, which seemed to explain its superior elastic properties. © 2011 Elsevier Ltd. All rights reserved. Source

Liu C.-L.,Jiangnan University
2015 IEEE International Conference on Information and Automation, ICIA 2015 - In conjunction with 2015 IEEE International Conference on Automation and Logistics | Year: 2015

Synchronization problem is investigated for multiple harmonic oscillators with identical communication delay, and two predictor-based distributed algorithms, which include asynchronously-compensated form and synchronouslycompensated form, are proposed. To analyze the delay robustness intuitively, two predictor-based algorithms accompanied with the normal asynchronously-matched and synchronouslymatched distributed algorithms are studied for a simplest interconnection topology that a oscillator follows a leader. Under general directed topology, delay-dependent sufficient conditions are obtained respectively for the synchronization algorithm in asynchronously-compensated and synchronously-compensated algorithms by using frequency-domain analysis. Numerical simulations illustrate the correctness of the theoretical analysis. © 2015 IEEE. Source

Fu S.,Jiangnan University | Xu C.,North Carolina State University
Journal of Applied Polymer Science | Year: 2010

Nanoscale azo pigment yellow 13 (PY13) was coated by poly(styrene - maleic acid) (PSMA) with a free - radical precipitation polymerization, followed by the preparation of the dispersion. The effects of the PSMA structure on the particle size and centrifugal stability were investigated. The experimental results revealed that the particle size was large, and the stability of the PY13/PSMA dispersions was high when the molar ratio of the feeding maleic acid to styrene, the weight ratio of the feeding initiator to monomer, and the weight ratio of the feeding monomer to pigment were about 1.0, 0.6, and 20%, respectively. Fourier transform infrared spectroscopy, dynamic light scattering, and transmission electron microscopy indicated that PY13 was coated by PSMA. The PY13/PSMA dispersion was stable in the pH range 5.6 - 10.5. © 2009 Wiley Periodicals, Inc. Source

Li Q.,Hong Kong Polytechnic University | Li Q.,Jiangnan University | Loke A.Y.,Hong Kong Polytechnic University
Psycho-Oncology | Year: 2013

Objective: Although there is a vast body of studies exploring the negative aspects of spousal caregiving for cancer patients, there have also been reports on the positive aspects. The objective of this review was to summarize and appraise the positive aspects of spousal caregiving and to identify directions for future research. Methods: A systematic search was conducted to identity articles published in English or Chinese from January 1996 to July 2012. Studies were located using an electronic search, a manual search, and an author search. Results: A total of 35 articles were identified and included in this review. The focus of these studies and their results were described on the basis of the Conceptual Framework of the Positive Aspects of Caregiving. The findings revealed that spousal caregivers for cancer patients experienced various positive aspects of caregiving, such as an enhanced relationship with the care-receiver, the feeling of being rewarded, a sense of personal growth, and a perception of personal satisfaction. Daily enrichment events and self-efficacy on the part of the caregivers were identified as the determining factors in the positive aspects of caregiving. Conclusions: All of the three domains of the positive aspects of caregiving are interdependent and worked together to contribute to the positive outcomes experienced by spousal caregivers. An intervention program specially designed to enhance the positive aspects of caregiving will support spouses caring for cancer patients. Copyright © 2013 John Wiley & Sons, Ltd. Source

Chen J.-X.,Wuhan University | Chen J.-X.,Jiangnan University | Xu X.-D.,Wuhan University | Chen W.-H.,Wuhan University | Zhang X.-Z.,Wuhan University
ACS Applied Materials and Interfaces | Year: 2014

A novel multifunctional amphiphilic peptidic prodrug was reported here by conjugating the antitumor drug of doxorubicin (DOX) to the hydrophobic tail of a designed peptide-amphiphile (PA), in which the hydrophilic peptide headgroup comprises a glycine-arginine-glycine-aspartic acid-serine (GRGDS) sequence and octaarginine (R8) sequence. Because of the amphiphilic nature, this peptidic prodrug can spontaneously self-assemble into spherical multifunctional envelop-type nanoparticles (MENPs) with the functional peptide sequences gathered on surface. By means of the multifunctions of RGD-mediated tumor targeting, R8-mediated membrane penetration and intracellular protease-mediated hydrolyzing peptide bonds, the MENPs could targeted deliver doxorubicin (DOX) to tumor cells, showing improved antitumor activity both in vitro and in vivo with much reduced side effects. © 2013 American Chemical Society. Source

Wang Q.,Jiangnan University | Hauser P.J.,North Carolina State University
Carbohydrate Polymers | Year: 2010

A new approach for UV protection of cotton fabrics based on electrostatic self-assembly (ESA) technique was studied in this paper. Three fluorescent brightening agents (FBAs) and poly(diallyldimethylammonium chloride) (PDDA) were stepwisely fabricated on cationized cotton fabrics through direct layer-by-layer (LbL) deposition technique. Dyeing of the assembled cotton fabrics with anionic dyes shows regular and identifiable "odd-even" changes in color depth (K/S value), indicating the variation of surface polarities of the cotton substrates due to the alternate deposition of FBA and PDDA on them. The stepwise increases in UPF of treated cotton fabrics further revealed the growth of these LbL deposition multilayers. The assembled cotton fabrics could obtain excellent UV protection ratings of UPF > 40 after several bilayers of FBA/PDDA were fabricated, depending on the type of FBAs. Excellent durability to washing of the (FBA/PDDA)n multilayers was obtained, which indicates good adhesion between the multilayer coatings and the cotton surfaces. © 2010 Elsevier Ltd. All rights reserved. Source

Tang R.,Jiangnan University | Ji W.,University of Minnesota | Wang C.,University of Minnesota
Polymer | Year: 2011

A new type of pH-labile cationic polymers, poly(ortho ester amidine) (POEAmd) copolymers, has been synthesized and characterized with potential future application as gene delivery carriers. The acid-labile POEAmd copolymer was synthesized by polycondensation of a new ortho ester diamine monomer with dimethylaliphatimidates, and a non-acid-labile polyamidine (PAmd) copolymer was also synthesized for comparison using a triethylene glycol diamine monomer. Both copolymers were easily dissolved in water, and can efficiently bind and condense plasmid DNA at neutral pH, forming nano-scale polyplexes. The physicochemical properties of the polyplexes have been studied using dynamic light scattering, gel electrophoresis, ethidium bromide exclusion, and heparin competition. The average size of the polyplexes was dependent on the amidine:phosphate (N:P) ratio of the polymers to DNA. Polyplexes containing the acid-labile POEAmd or the non-acid-labile PAmd showed similar average particle size, comparable strength of condensing DNA, and resistance to electrostatic destabilization. They also share similar metabolic toxicity to cells as measured by MTT assay. Importantly, the acid-labile polyplexes undergo accelerated polymer degradation at mildly acid-pHs, resulting in increasing particle size and the release of intact DNA plasmid. Polyplexes from both types of polyamidines caused distinct changes in the scattering properties of Baby Hamster Kidney (BHK-21) cells, showing swelling and increasing intracellular granularity. These cellular responses are uniquely different from other cationic polymers such as polyethylenimine and point to stress-related mechanisms specific to the polyamidines. Gene transfection of BHK-21 cells was evaluated by flow cytometry. The positive yet modest transfection efficiency by the polyamidines (acid-labile and non-acid-labile alike) underscores the importance of balancing polymer degradation and DNA release with endosomal escape. Insights gained from studying such acid-labile polyamidine-based DNA carriers and their interaction with cells may contribute to improved design of practically useful gene delivery systems. © 2010 Elsevier Ltd. All rights reserved. Source

Sun L.,Jiangnan University
Energy Education Science and Technology Part A: Energy Science and Research | Year: 2014

Through the investigation on the present situation of wastewater discharge, this article finds out the reasonable way for hot spring wastewater treatment, and puts forward the corresponding comprehensive idea of utilization. The designing of comprehensive ecological and economic projects combined with agriculture, farming, gardening and so on, and the studying of the rationality and recycling utilization of geothermal energy, can alleviate the pressure of demand for energy from the social economic development, which is also conducive to the protection of ecological environment, and to the generation of considerable economic benefit. In this paper, base on the author’s designing case, the green concept of sustainable development is integrated into the design of the hot spring leisure commercial ecological projects, and hot spring wastewater are investigated in the meantime. Combined with the energy conservation planning of hot spring hotel, a plan on the secondary utilization of spring wastewater of geothermal resources is designed. Through statistical analysis, it is concluded that the plan is conducive to both environmental protection and new energy development. © Sila Science. All rights reserved. Source

Liu Y.,Jiangnan University
Journal of Information and Computational Science | Year: 2011

A novel hybrid algorithm based Radial Basis Function (RBF) neural network is proposed for network anomaly detection in this paper. The Quantum-behaved Particle Swarm Optimization, which outperforms other optimization algorithm considerably on its simple architecture and fast convergence, has previously applied to solve optimum problem. However, the QPSO also has its own shortcomings. So, a hybrid algorithm in training RBF neural network was proposed. This new evolutionary algorithm, which is based on a hybrid of Quantum-Behaved Particle Swarm Optimization (QPSO) and Gradient Descent (GD) algorithm, is employed to train RBFNN. Experimental result on KDD99 intrusion detection datasets shows that this RBFNN using the novel hybrid algorithm has high detection rate while maintaining a low false positive rate. Copyright © 2011 Binary Information Press. Source

Gao Q.-H.,Northwest University, China | Wu C.-S.,Jiangnan University | Wang M.,Northwest University, China
Journal of Agricultural and Food Chemistry | Year: 2013

The nutritional jujube (Ziziphus jujube Mill.) fruit belonging to the Rhamnaceous family grows mostly in Europe, southern and eastern Asia, and Australia, especially the inland region of northern China. Jujube has a long history of usage as a fruit and remedy. The main biologically active components are vitamin C, phenolics, flavonoids, triterpenic acids, and polysaccharides. Recent phytochemical studies of jujube fruits have shed some light on their biological effects, such as the anticancer, anti-inflammatory, antiobesity, immunostimulating, antioxidant, hepatoprotective, and gastrointestinal protective activities and inhibition of foam cell formation in macrophages. A stronger focus on clinical studies and phytochemical definition of jujube fruits will be essential for future research efforts. This review may be useful for predicting other medicinal uses and potential drug or food interactions and may be beneficial for people living where the jujube fruits are prevalent and health care resources are scarce. © 2013 American Chemical Society. Source

Chen F.,Jiangnan University
Wei sheng wu xue bao = Acta microbiologica Sinica | Year: 2010

The aim of our work is to investigate the effects of overexpression of two acetyl-CoA synthase genes, ACS1 and ACS2, on the physiological functions of Saccharomyces cerevisiae. We overexpressed ACS1 and ACS2 in S. cerevisiae CEN. PK2 with shuttle vector pY26-TEF-GPD. We determined and compared the physiological parameters of the parent strain to the ACS1/2 overexpressed strains, including the intracellular acetyl-CoA content, ATP content, mevalonate pathway, and the tolerance to ethanol stress. Compared to the parent strain, the overexpression of ACS1 and ACS2 led to: (1) The intracellular acetyl-CoA content increased by 2. 19-fold (ACS1) and 5.02-fold (ACS2), respectively; (2) The intracellular ATP content increased by 3.92-fold (ACS1) and 2.05-fold (ACS2), respectively; (3) The transcription levels of the seven key genes in mevalonate pathway were upregulated, therefore, more carbon flux was channeled into the mevalonate pathway, which could provide precursor for terpenes synthesis; (4) The tolerance to high content of ethanol was enhanced, especially for the ACS1 overexpression strain. The results presented here demonstrated that the overexpression of acetyl-CoA synthase can enhance the carbon flux into mevalonate pathway and improve the tolerance of S. cerevisiae to high content of ethanol, which is the main byproduct of the fermentation process with the yeast. Source

Gao H.,Tsinghua University | Xu W.,Jiangnan University
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics | Year: 2011

Particle swarm optimization (PSO) is a population-based optimization technique that can be applied to a wide range of problems. Here, we first investigate the behavior of particles in the PSO using a Monte Carlo method. The results reveal the essence of the trajectory of particles during iterations and the reasons why the PSO lacks a global search ability in the last stage of iterations. Then, we report a novel PSO with a moderate-random-search strategy (MRPSO), which enhances the ability of particles to explore the solution spaces more effectively and increases their convergence rates. Furthermore, a new mutation strategy is used, which makes it easier for particles in hybrid MRPSO (HMRPSO) to find the global optimum and which also seeks a balance between the exploration of new regions and the exploitation of the already sampled regions in the solution spaces. Thirteen benchmark functions are employed to test the performance of the HMRPSO. The results show that the new PSO algorithm performs much better than other PSO algorithms for each multimodal and unimodal function. Furthermore, compared with recent evolutionary algorithms, experimental results empirically demonstrate that the proposed framework yields promising search performance. © 2011 IEEE. Source

Qian S.,Jiangnan University
Industrial Lubrication and Tribology | Year: 2015

Purpose - This paper aims to present the probable factors resulting in the lubrication failure in detail, based on the experimental study on the tribological property of the low-viscosity lubricant subjected to the different slide/roll ratios and loads under micro confined space. Design/methodology/approach - The interference images and the traction coefficients of the spindle oil with low viscosity were recorded using a ball-on-disc test rig. Moreover, the corresponding flash temperatures were obtained via an analytical method. Findings - More scratches can be observed in the interference images with higher slide/roll ratios. The applied load plays a significant role in the variation of the traction coefficient under different slide/roll ratio, and higher load resulted in lower traction coefficient. The flash temperature generated in the point contact zone non-linearly increases with increasing slide/roll ratio. Originality/value - The flash temperature is not a crucial factor which results in these scratches in the interference images. Moreover, it is probable that the micro confined space is in boundary lubrication at higher shear rates. © Emerald Group Publishing Limited. Source

Wang S.,Jiangnan University
Wei sheng wu xue bao = Acta microbiologica Sinica | Year: 2010

OBJECTIVE: The performance of Lactobacillus salivarius BBE09-18, L. fermentum BBE09-29 and L. casei Zhang to remove the cyanobacterial toxin microcystin-LR ( MC-LR) were determined in this study, and the key factors related to the removal efficiency were investigated to analyze the specific mechanism and provide a novel way to deal with the MC-LR contaminated foods. METHODS: Investigate the microcystin-removing capability of cells in different physiological status, e. g. viable and nonviable cells, and compare their removing effects with different biomass, toxin concentration and glucose supplement. RESULTS: Among these strains, L. casei Zhang removed the microcystin-LR most effectively. After a removal treatment with L. casei Zhang for 24 h (10(9)) CFU/mL, pH7, 37 degrees C), the MC-LR concentration deduced from 150 microg/L to 85. 5 microg/L. Results also showed that the viable cells were more effective for MC-LR removal than the nonviable ones. Moreover, the removal performance can be improved significantly when glucose was added, and the maximum removal of 92% was observed for L. casei Zhang ( toxin initial concentration 1800 microg/L,10(10) CFU/mL, pH 7.0, 37 degrees C, 24h) with 5% glucose supplement. CONCLUSION: All of the three LAB used in this study can remove MC-LR. It can be confirmed that some factors, such as biomass, toxin concentration and energy supplement of cells play important roles on the removal efficiency. These results suggest further that the mechanism of MC-LR removal in LAB may be related to their metabolic activity. Source

Zhang Q.-F.,Jiangnan University | Wang D.-Q.,China University of Mining and Technology
Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering | Year: 2012

Through physical model tests on colliery wastes improved by dynamic compaction, the dynamic strain gauge DH5939 is used to record the induced dynamic stress. The distribution and rules of the dynamic stress at different depths under different impact loadings and numbers of dynamic compaction are studied. It is shown that the dynamic stress has a single peak, and it has a significant decay to reach the peak under the impact loadings along the depth of the hammer. The decay speed of the horizontal dynamic stress is faster than that of the vertical one, and the range of influence of the vertical dynamic stress is more extensive than that of the horizontal one. The peak value of the dynamic stress attenuates quickly with the depth and similar in an approximate way of negative exponential decay law under the same tamping energy. In addition, for different measuring points, with the increase of compaction number, the dynamic stress tends to be stable after three to six blows. It may provide an efficient way to analyze the mechanism of dynamic compaction. Source

Cheng M.,Xidian University | Guo L.,Xidian University | Zhang Y.,Jiangnan University
Optics Express | Year: 2015

Analytic expression of the receiver-aperture-averaged scintillation index (SI) was derived for Gaussian-beam waves propagating through non-Kolmogorov maritime atmospheric environment by establishing a generalized maritime atmospheric spectrum model. The error performance of an intensity-modulated and direct-detection (IM/DD) free-space optical (FSO) system was investigated using the derived SI and lognormal distribution. The combined effects of non-Kolmogorov power-law exponent, turbulence inner scale, structure parameter, propagation distance, receiver aperture, and wavelength were also evaluated. Results show that inner scale and power-law exponent obviously affect SI. Large wavelength and receiver aperture can mitigate the effects of turbulence. The proposed model can be evaluated ship-to-ship/shore FSO system performance. © 2015 Optical Society of America. Source

Liu G.,Jiangnan University
Applied Mechanics and Materials | Year: 2010

As we all know everyone has IQ (Intelligence Quotient) and EQ (Emotion Quotient), but for designers DQ (Design Quotient) is much more important than the IQ and EQ. In this paper first the DQ situation of students major in Product Design in China is analyzed, and then the qualities required for studying design are explained in depth. There are two design qualities, one is Innate Quality (character factors), and the other is Acquired Quality (study factors). Finally the approaches of cultivating and improving design students' DQ are discussed in detail from two levels - Concrete level and Metaphysical level. © (2010) Trans Tech Publications. Source

Wang D.,Qingdao University | Ding F.,Jiangnan University
Signal Processing | Year: 2011

This paper derives a least squares-based and a gradient-based iterative identification algorithms for Wiener nonlinear systems. These methods separate one bilinear cost function into two linear cost functions, estimating directly the parameters of Wiener systems without re-parameterization to generate redundant estimates. The simulation results confirm that the proposed two algorithms are valid and the least squares-based iterative algorithm has faster convergence rates than the gradient-based iterative algorithm. © 2010 Elsevier B.V. All rights reserved. Source

Feng W.,Jiangnan University
2010 IEEE 11th International Conference on Computer-Aided Industrial Design and Conceptual Design, CAID and CD'2010 | Year: 2010

In this paper, the background of digital age is briefly analysed, and then it illustrates the development of media materials in public art on terms of both traditional and digital age. Afterwards, it furture researches the application of media materials in public art through the case study of materials related to imaging, photoelectric, inductive and composite in the context of the digital age. © 2010 IEEE. Source

Three ice structuring proteins (ISPs) with different molecular weights and net charges at pH 7.4 were partitioned in an aqueous anionic/nonionic surfactant two-phase system of SDS and Trition X-114 in the presence of 100 mM sodium chloride. The effects of temperature and SDS concentration on the protein partition coefficients were investigated. It is found that the protein partition coefficients increase with the increase of temperature and SDS concentration. Compared to the reported net dependence of protein partitioning in aqueous mixed surfactant two-phase systems, the observed protein partitioning behavior is driven primarily by excluded volume interactions between the proteins and the surfactant aggregates, rather than electrostatic interactions. Specifically, the ISPs partition preferentially to the micelle-poor phase, where they experience less excluded-volume interactions with the surfactant aggregates. The improvements in protein partitioning to the micelle-poor phase upon the SDS addition appear to result from the growth of the surfactant aggregates by forming mixed micelles, which enhances the excluded-volume interactions between the proteins and the surfactant aggregates. © 2012 The Royal Society of Chemistry. Source

Aqueous binary surfactant solutions, based on the cloud point phenomenon, have been utilized to design efficient extraction of a variety of substances. In this study, the effect of the anionic surfactant sodium dodecyl sulfate (SDS) on the clouding behaviour of aqueous nonionic surfactant solutions of Triton X-114 (TX-114), in the presence of 100 mM sodium chloride (NaCl), has been studied as a function of temperature by means of turbidity, dynamic light scattering (DLS), and rheo-small angle light scattering (Rheo-SALS). It is found that the addition of 2 mM SDS lowers the phase separation temperature of the surfactant solution by about 2 °C. The hydrodynamic radius of the surfactant aggregates increases with increase of temperature and SDS concentration. The change in microstructure of the surfactant aggregates at different temperature and SDS concentrations is also reflected by the characteristic length and aspect ratio extracted from their SALS patterns, which range from 269 to 623 nm and from 1.01 to 1.40, respectively. The increasing characteristic length and aspect ratio with SDS concentration indicate the growth of the mixed surfactant aggregates is in the flow direction and these elongated aggregates can align under shear. © 2012 The Royal Society of Chemistry. Source

Kuang H.,Jiangnan University
Sensors (Basel, Switzerland) | Year: 2013

A monoclonal antibody specifically recognizing dibutyl phthalate (DBP) was prepared based on a hapten (di-n-butyl-4-aminophthalate). After optimizing various parameters such as concentrations of antibody, coating antigen and composition of the assay buffer, an inhibition curve was plotted with the 50% inhibition concentration value (IC50) 33.6 ± 2.5 ng/mL. A low level of cross-reactivity (<5%) was found for other phthalate esters. Recovery tests were conducted using liquor simulant (a mixture of water and ethanol) at two fortification levels (100 ng/mL and 300 ng/mL). The recovery rates ranged from 84.7% to 94.5% with a coefficient of variation between 7.1% and 12.8%. Nine liquor samples of different alcoholic strengths were detected using the proposed measure and confirmatory analysis was performed using liquid chromatography-mass spectroscopy (LC-MS). The detection results showed good consistency between the two measures and all the data above indicated that the proposed ELISA could be applied in DBP screening. Source

Liu X.,Jiangnan University | Linn N.C.,University of Florida | Sun C.-H.,University of Florida | Jiang P.,University of Florida
Physical Chemistry Chemical Physics | Year: 2010

Here we report a scalable colloidal templating approach for producing metal half-shells as efficient surface-enhanced Raman scattering (SERS) substrates. Nonclose-packed monolayer colloidal crystals created by a spin-coating technology are used as structural template to fabricate both water-dispersed half-shells and disordered arrays of half-shells with preferential upright orientation. The sharp edges of the half-shells and the small gaps between adjacent shells can significantly enhance the local electromagnetic field, resulting in high SERS enhancement factor (up to 1010) which is nearly 2 orders of magnitude higher than those of periodic substrates produced by other colloidal templating approaches. We have also demonstrated that the thickness of the half-shells determines the surface plasmon resonance and the resulting SERS enhancement. Counterintuitively, the disordered arrays of oriented half-shells show reproducible enhancement with a standard deviation of less than 20%. This new bottom-up approach enables the large-scale production of SERS substrates that are at least 2 orders of magnitude larger in area than those made by other colloidal lithography technologies. The resulting substrates with high and reproducible SERS enhancement are promising for ultrasensitive chemical and biological sensing. © 2010 the Owner Societies. Source

Ding F.,Jiangnan University | Liu G.,Ryerson University | Liu X.P.,Carleton University
IEEE Transactions on Automatic Control | Year: 2010

This technical note addresses identification problems of non-uniformly sampled systems. For the input-output representation of non-uniform discrete-time systems, a partially coupled stochastic gradient (C-SG) algorithm is proposed to estimate the model parameters with high computational efficiency compared with the standard stochastic gradient (SG) algorithm. The analysis indicates that the partially C-SG algorithm can give more accurate parameter estimates than the SG algorithm. The parameter estimates obtained using the partially C-SG algorithm converge to their true values as the data length approaches infinity. © 2010 IEEE. Source

Ding F.,Jiangnan University | Liu P.X.,Carleton University | Liu G.,Ryerson University
Digital Signal Processing: A Review Journal | Year: 2010

Gradient based and least-squares based iterative identification algorithms are developed for output error (OE) and output error moving average (OEMA) systems. Compared with recursive approaches, the proposed iterative algorithms use all the measured input-output data at each iterative computation (at each iteration), and thus can produce highly accurate parameter estimation. The basic idea of the iterative methods is to adopt the interactive estimation theory: the parameter estimates relying on unknown variables are computed by using the estimates of these unknown variables which are obtained from the preceding parameter estimates. The simulation results confirm theoretical findings. © 2009 Elsevier Inc. All rights reserved. Source

Qi X.,Shandong University | Fuller E.,West Virginia University | Wu Q.,Jiangnan University | Wu Y.,West Virginia University | Zhang C.-Q.,West Virginia University
Information Sciences | Year: 2012

The centrality of vertices has been a key issue in network analysis. For unweighted networks where edges are just present or absent and have no weight attached, many centrality measures have been presented, such as degree, betweenness, closeness, eigenvector and subgraph centrality. There has been a growing need to design centrality measures for weighted networks, because weighted networks where edges are attached weights would contain rich information. Some network measures have been proposed for weighted networks, including three common measures of vertex centrality: degree, closeness, and betweenness. In this paper, we propose a new centrality measure called the Laplacian centrality measure for weighted networks. The Laplacian energy is defined as EL(G)=∑ iλi2, where λ i's are eigenvalues of the Laplacian matrix of weighted network G. The importance (centrality) of a vertex v is reflected by the drop of the Laplacian energy of the network to respond to the deactivation (deletion) of the vertex from the network. We also prove an algebraic graph theory result that provides a structural description of the Laplacian centrality measure which is in terms of the number of all kinds of 2-walks. Laplacian centrality unveils more structural information about connectivity and density around v (further than its immediate neighborhood). That is, comparing with other standard centrality measures proposed for weighted networks (e.g. degree, closeness or betweenness centrality), Laplacian centrality is an intermediate measuring between global and local characterization of the importance (centrality) of a vertex. We further investigate the validness and robustness of this new centrality measure by illustrating this method to some classical weighted social network data sets and obtain reliable results, which provide strong evidences of the new measure's utility. © 2012 Elsevier Inc. All rights reserved. Source

Haque M.A.,University of Ballarat | Aldred P.,University of Ballarat | Chen J.,Jiangnan University | Barrow C.J.,Deakin University | Adhikari B.,University of Ballarat
Food Chemistry | Year: 2013

The extent and nature of denaturation of whey protein isolate (WPI) in convective air drying environments was measured and analysed using single droplet drying. A custom-built, single droplet drying instrument was used for this purpose. Single droplets having 5 ± 0.1 u.l volume (initial droplet diameter 1.5 ±0.1 mm) containing 10% (w/v) WPI were dried at air temperatures of 45, 65 and 80°C for 600 s at constant air velocity of 0.5 m/s. The extent and nature of denaturation of WPI in isothermal heat treatment processes was measured at 65 and 80 °C for 600 s and compared with those obtained from convective air drying. The extent of denaturation of WPI in a high hydrostatic pressure environment (600 MPa for 600 s) was also determined. The results showed that at the end of 600 s of convective drying at 65 °C the denaturation of WPI was 68.3%, while it was only 10.8% during isothermal heat treatment at the same medium temperature. When the medium temperature was maintained at 80 °C, the denaturation loss of WPI was 90.0% and 68.7% during isothermal heat treatment and convective drying, respectively. The bovine serum albumin (BSA) fraction of WPI was found to be more stable in the convective drying conditions than ß-lactoglobulin and α-lactalbumin, especially at longer drying times. The extent of denaturation of WPI in convective air drying (65 and 80 °C) and isotheral heat treatment (80 °C) for 600 s was found to be higher than its denaturation in a high hydrostatic pressure environment at ambient temperature (600 MPa for 600 s). © 2013 Elsevier Ltd. All rights reserved. Source

Jiang Y.,Jiangnan University | Zhao W.,Shanghai JiaoTong University | Xi X.,Shanghai JiaoTong University
Journal of Materials Processing Technology | Year: 2012

Small-hole EDM has a problem of debris evacuation from the narrow gap between the electrode and workpiece. The presence and difficulty in evacuating the debris formed during an erosion process limit the achievable aspect ratio. To address the problem of debris accumulation, a pulse generator, which is able to shut off harmful pulses and to apply high discharge energy pulses, is developed. A FPGA chip is used as the master controller for the determination of pulse discharge status and MOSFET switching. A series of experiments are carried out to examine the machining performance by shutting off harmful pulses and applying high discharge energy pulses. The experimental results show that the efficiency of small-hole drilling is improved and the aspect ratio is increased. © 2012 Elsevier B.V. All rights reserved. Source

He D.,Jiangnan University | Zheng Y.,CAS Kunming Institute of Zoology | Tam S.,Chinese University of Hong Kong
Life Sciences | Year: 2012

Aims: Trichosanthin (TCS) is a type I ribosome-inactivating protein. We have previously shown that TCS induces a more potent apoptosis in infected cells over uninfected cells, but the mechanism underlying it is unclear. In this study, we explored the anti-HSV-1 mechanism of TCS through the nuclear factor-κB (NF-κB) and p53 pathways in human epithelial carcinoma (HEp-2) cells with wild type p53. Main methods: The western blot, electrophoretic mobility shift assay, chromatin immunoprecipitation assay, enzyme-linked immunosorbent assay and cytokinesis-block micronucleus were applied in this study. Key findings: It was shown that TCS inhibited the HSV-1-induced NF-κB activation. Meanwhile, in HSV-1 infected cells, TCS treatment activated significantly more p53 and BAX, with no DNA damage and less S phase arrest compared with uninfected cells. The activation of BAX in infected cells correlated with the cell death signaling of p53. Significance: Taken together, these results suggest that the anti-HSV-1 effect of TCS is related to its suppression of NF-κB activation and regulation of p53-dependent cell death in infected cells. © 2012 Elsevier Inc. Source

Yang D.,Shanxi Normal University | Guo J.,Shanxi Normal University | Wu H.,Shanxi Normal University | Ding Y.,Jiangnan University | Zheng W.,Shanxi Normal University
Dalton Transactions | Year: 2012

A series of germylene, stannylene and plumbylene complexes [η 2(N,N)-Me 2Si(DippN) 2Ge:] (3a), [η 2(N,N)-Ph 2Si(DippN) 2Ge:] (3b), [η 2(N,N)-Me 2Si(DippN) 2Sn:] (4), [η 2(N,N)-Me 2Si(DippN) 2Pb:] 2 (5a), and [η 2(N,N)-Ph 2Si(DippN) 2Pb:] (5b) (Dipp = 2,6-iPr 2C 6H 3) bearing bulky bis(amido)silane ligands were readily prepared either by the transamination of M[N(SiMe 3) 2] 2 (M = Sn, Pb) and [Me 2Si(DippNH) 2] or by the metathesis reaction of bislithium bis(amido)silane [η 1(N),η 1(N)-R 2Si(DippNLi) 2] (R = Me, Ph) with the corresponding metal halides GeCl 2(dioxane), SnCl 2, and PbCl 2, respectively. Preliminary atom-transfer chemistry involving [η 2(N,N)-Me 2Si(DippN) 2Ge:] (3a) with oxygen yielded a dimeric oxo-bridged germanium complex [η 2(N,N)-Me 2Si(DippN) 2Ge(μ-O)] 2 (6). All complexes were characterized by 1H, 13C, 119Sn NMR, IR, and elemental analysis. X-ray single crystal diffraction analysis revealed that the metal centres in 3b, 4, and 5b are sterically protected to prevent interaction between the metal centre and the nitrogen donors of adjacent molecules while complex 5a shows a dimeric feature with a strong intermolecular Pb⋯N interaction. © 2012 The Royal Society of Chemistry. Source

This paper presents a system of projection neural networks (SPNNs) for solving the system of generalized variational inequalities (SGVIs). The SPNNs includes the projection neural network as its special case. Based on the Lyapunov method, the global exponential stability of the SPNNs is derived and proved under some mild conditions. In addition, simulation results on numerical examples show the effectiveness and performance of the proposed SPNNs. © 2010. Source

Wang Q.-Y.,Hunan University | Kang Y.-J.,Jiangnan University
Nanoscale Research Letters | Year: 2016

In this study, we have developed an efficient method based on single-stranded DNA (ssDNA) aptamers along with silica fluorescence nanoparticles for bacteria Salmonella typhimurium detection. Carboxyl-modified Tris(2,2′-bipyridyl)dichlororuthenium(II) hexahydrate (RuBPY)-doped silica nanoparticles (COOH-FSiNPs) were prepared using reverse microemulsion method, and the streptavidin was conjugated to the surface of the prepared COOH-FSiNPs. The bacteria S. typhimurium was incubated with a specific ssDNA biotin-labeled aptamer, and then the aptamer-bacteria conjugates were treated with the synthetic streptavidin-conjugated silica fluorescence nanoprobes (SA-FSiNPs). The results under fluorescence microscopy show that SA-FSiNPs can be applied effectively for the labeling of bacteria S. typhimurium with great photostable property. To further verify the specificity of SA-FSiNPs out of multiple bacterial conditions, variant concentrations of bacteria mixtures composed of bacteria S. typhimurium, Escherichia coli, and Bacillus subtilis were treated with SA-FSiNPs. In addition, the feasibility of SA-FSiNPs for bacteria S. typhimurium detection in chicken samples was assessed. All the results display that the established aptamer-based nanoprobes exhibit the superiority for bacteria S. typhimurium detection, which is referentially significant for wider application prospects in pathogen detection. © 2016, Wang and Kang. Source

Liu Y.,Jiangnan University
Proceedings of IEEE International Conference on Grey Systems and Intelligent Services, GSIS | Year: 2015

The preferences of (Decision makers)DMs may be uncertain as a result of much more uncertain information existing such as grey information, in real conflict problems, so that it is difficult for the classical graph model for conflict resolution(GMCR) to make quantitatively the preference ranking and deal with. In view of this, the grey number is introduced to express grey information, and then a ranking method is proposed to determine the grey preference rankings of DMs, so that a novel graph model with grey information is established to solve equilibrium states and decision paths. By means of analyzing a conflict example, the results show that the proposed model can deal with conflict problems with uncertain information well, and objectively give the preference rankings of conflict states of decision makers in the form of a quantitative description instead of subjective judgment. © 2015 IEEE. Source

Wang L.-J.,East China University of Science and Technology | Li C.-X.,East China University of Science and Technology | Ni Y.,East China University of Science and Technology | Zhang J.,East China University of Science and Technology | And 2 more authors.
Bioresource Technology | Year: 2011

An NADH-dependent reductase (ScCR) from Streptomyces coelicolor was discovered by genome mining for carbonyl reductases. ScCR was overexpressed in Escherichia coli BL21, purified to homogeneity and its catalytic properties were studied. This enzyme catalyzed the asymmetric reduction of a broad range of prochiral ketones including aryl ketones, α- and β-ketoesters, with high activity and excellent enantioselectivity (>99% ee) towards β-ketoesters. Among them, ethyl 4-chloro-3-oxobutanoate (COBE) was efficiently converted to ethyl (S)-4-chloro-3-hydroxybutanoate ((S)-CHBE), an important pharmaceutical intermediate, in water/toluene biphasic system. As much as 600. g/L (3.6. M) of COBE was asymmetrically reduced within 22. h using 2-propanol as a co-substrate for NADH regeneration, resulting in a yield of 93%, an enantioselectivity of >99% ee, and a total turnover number (TTN) of 12,100. These results indicate the potential of ScCR for the industrial production of valuable chiral alcohols. © 2011 Elsevier Ltd. Source

Xu G.,Jiangnan University
Wei sheng wu xue bao = Acta microbiologica Sinica | Year: 2011

Carboxylatic acids have been widely used in food, pharmaceutical and chemical industries. As a eukaryotic model organism, Saccharomyces cerevisiae is thought as cell factory to produce organic acids through manipulating metabolic pathway. In this review, we addressed the metabolic engineering strategies to construct a high titer route converting pyruvate to target carboxylate, and to explore how to divert the carbon flux to desired product from ethanol. Furthermore, we also discussed the mechanisms for carboxylate transport and energy involved in. Finally, the relevant strategies for development in future are proposed. Source

Chen K.,Jiangnan University | Wu Y.,Fudan University | Zhou S.,Fudan University | Wu L.,Fudan University
Macromolecular Rapid Communications | Year: 2016

Artificial special wetting surfaces have drawn much interest due to their important applications in many fields. Nevertheless, tremendous challenges still remain for the fabrication of wetting surfaces with durable and self-healing properties. Here, recent progress of durable, self-healing wetting surfaces is highlighted by discussing the fabrications of several typical wetting surfaces including superhydrophobic surfaces, superamphiphobic surfaces, underwater superoleophobic surfaces, and high hydrophilic antifouling surfaces based on expertise and related research experience. To conclude, some perspectives on the future research and development of these special wetting surfaces are presented. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Source

Chen X.Z.,Jiangnan University
Yi chuan = Hereditas / Zhongguo yi chuan xue hui bian ji | Year: 2011

Filamentous fungi are used in a variety of industrial processes including the production of primary metabolites (e.g., organic acid, vitamins, and extracellular enzymes) and secondary metabolites (e.g., antibiotics, alkaloids, and gibberellins). Moreover, filamentous fungi have become preferred cell factories for production of foreign (heterologous) proteins in biotechnology in recent years. Compared to bacterial and yeast hosts, filamentous fungi showed predominant features such as the ability of growing on rather simple and inexpensive substrates, producing and secreting exceptionally large amounts of proteins, post-translational modifications, and GRAS (generally regarded as safe) approval. Therefore, the exploration of filamentous fungi has been attractive recently. This review summarizes the recent development in genomics, comparative genomics, transcriptomics, proteomics and metabolomics of filamentous fungi, and describes their applications and functions in reconstruction of metabolic network, discovery of novel proteins and genes, investigation of cell physiological and biochemical reactions, and strain breeding. This review also analyzes the bottlenecks of heterologous protein expression in filamentous fungi. Furthermore, special emphasis is given on the strategies for improving the protein production, including fusion expression of heterologous proteins, RNAi technology, manipulations of secretion pathways, codon optimization of foreign genes, and screening of protease mutants. Lastly, this review proposes the future direction of metabolic engineering of filamentous fungi. Source

Guan B.,Jiangnan University
Wei sheng wu xue bao = Acta microbiologica Sinica | Year: 2011

Due to the potential for producing soluble, correctly folded protein with high yield, Pichia pastoris is currently one of the most effective hosts for the expression of heterologous proteins. However, limitations of expression efficiency are often reported for many different heterologous proteins. Accumulating evidences suggest that protein folding and processing of heterologous protein is a major bottleneck during secretion process in yeast. Apart from optimization of the fermentation process, the current strategies for strain engineering for improving protein secretion are focused mainly on folding and processing, and systematic engineering by high-throughput screening for potential secretion enhancers. This article reviews the genetic engineering progresses of these aspects. Source

Wang D.,Qingdao University | Chu Y.,Qingdao University | Ding F.,Jiangnan University
Computers and Mathematics with Applications | Year: 2010

This paper considers the identification problem for Hammerstein output error moving average (OEMA) systems. An auxiliary model-based recursive extended least-squares (RELS) algorithm and an auxiliary model-based multi-innovation extended least-squares (MI-ELS) algorithm are presented using the multi-innovation identification theory. The basic idea is to express the system output as a linear combination of the parameters by using the key-term separation principle and auxiliary model method. The proposed algorithms can give highly accurate parameter estimates. The simulation results show the effectiveness of the proposed algorithms. © 2010 Elsevier Ltd. All rights reserved. Source

Ding F.,Jiangnan University
Computers and Mathematics with Applications | Year: 2010

Special matrices are very useful in signal processing and control systems. This paper studies the transformations and relationships between some special matrices. The conditions that a matrix is similar to a companion matrix are derived. It is proved that a companion matrix is similar to a diagonal matrix or Jordan matrix, and the transformation matrices between them are given. Finally, we apply the similarity transformation and the companion matrix to system identification. © 2010 Elsevier Ltd. All rights reserved. Source

Zhou M.,Jiangnan University
Wei sheng wu xue bao = Acta microbiologica Sinica | Year: 2012

The aim of this study is to reconstruct the metabolic model of Bacillus megaterium by literature study, which would be used to elucidate physiological properties in detail and refine physiological functions. We built a literature database by searching B. megaterium related literatures from Web of Science, PubMed, United States Patent and Trademark Office (USPTO) Patent Databases, Derwent Innovations Index and China National Knowledge Infrastructure (CNKI). Depending on this database, we extracted the functional genes, enzymes, metabolites and metabolic reactions (including transport reactions) through literature studies. Then, we filled gaps through KEGG Mapper and adding sink reactions. The operation of Matlab programs reconstructed the metabolic model (in the form of Systems Biology Markup Language) of B. megaterium. The refined metabolic network model contained 292 metabolic reactions, 378 metabolites, 220 enzymes and 217 genes. With the restrictive condition of 1.62 mmol/g cell/h of glucose uptake rate, the simulated specific growth rate was 0.089 h(-1), a little lower than the experimental value 0.11 h(-1). In addition, the accuracy of the single gene deletion simulation in pyrimidine metabolism reached 90%. The final metabolic network model covered the biochemical information of citrate cycle, glycolysis, pentose phosphate pathway, fatty acid metabolism, vitamin B12 biosynthesis and amino acid biosynthesis, and reflected the effect of substrates and genes on the growth of the bacterium to a certain extent. Source

Wang D.,Qingdao University | Chu Y.,Qingdao University | Yang G.,Qingdao University | Ding F.,Jiangnan University
Mathematical and Computer Modelling | Year: 2010

This paper deals with the parameter identification problem of Hammerstein output error auto-regressive (OEAR) systems with different nonlinearities by combining the key-term separation principle and the auxiliary model identification idea. The basic idea is, by using the key-term separation principle, to present auxiliary model based recursive generalized least squares algorithms in terms of the auxiliary model idea. The proposed algorithm can obtain the system model parameter estimates and the noise model parameter estimates, and can be extended to other nonlinear systems. © 2010 Elsevier Ltd. All rights reserved. Source

Pan L.,Nanjing Agricultural University | Zhu Q.,Jiangnan University | Lu R.,Michigan State University | McGrath J.M.,Michigan State University
Food Chemistry | Year: 2015

Visible and near-infrared spectra in interactance mode were acquired for intact and sliced beet samples, using two portable spectrometers for the spectral regions of 400-1100 nm and 900-1600 nm, respectively. Sucrose prediction models for intact and sliced beets were developed and then validated. The spectrometer for 400-1100 nm was able to predict the sucrose content with correlations of prediction (rp) of 0.80 and 0.88 and standard errors of prediction (SEPs) of 0.89% and 0.70%, for intact beets and beet slices, respectively. The spectrometer for 900-1600 nm had rp values of 0.74 and 0.88 and SEPs of 1.02% and 0.69% for intact beets and beet slices. These results showed the feasibility of using the portable spectrometer to predict the sucrose content of beet slices. Using simple correlation analysis, the study also identified important wavelengths that had strong correlation with the sucrose content. © Published by Elsevier Ltd. Source

Ding F.,Qingdao University of Science and Technology | Deng K.,Jiangnan University | Liu X.,Qingdao University of Science and Technology
Circuits, Systems, and Signal Processing | Year: 2014

This paper derives a Newton iterative algorithm for identifying a Hammerstein nonlinear FIR system with ARMA noise (i.e., Hammerstein nonlinear controlled autoregressive moving average system). This method decomposes a Hammerstein nonlinear system into two subsystems using the hierarchical identification principle, estimating the parameters of the system directly without using the over-parameterization method. The simulation results show that the proposed algorithm is effective. © 2014 Springer Science+Business Media New York. Source

Xiao Q.,Hunan Agricultural University | Tong Q.,Jiangnan University | Lim L.-T.,University of Guelph
Food Chemistry | Year: 2014

Drying phenomenon of aqueous pullulan solutions at 50 C was investigated by ATR-FTIR spectroscopy and two-dimensional correlation infrared spectroscopy. Two-dimensional asynchronous spectrum at 1800-1500 cm-1 wavenumber was resolved into three separate bands, which were assigned to aggregated water with strong hydrogen bond (AW-S), aggregated water with moderately hydrogen (AW-M) bond, and free water (FW), respectively. Curve fitting results indicated that the quantities of the three species of water were constant during the first 55 min of drying process. However, the area of the three bands (at around 1047, 1022 and 998 cm-1) varied as drying progressed, implying the formation of more-ordered pullulan chains structure, as well as increased pullulan chain-chain interactions. Further analysis using 2D asynchronous correlation spectroscopy in 1200-950 cm-1 wavenumber regions revealed the sequence of spectral changes during the drying process. © 2013 Elsevier Ltd. All rights reserved. Source

Daou C.,State Key Laboratory of Food Science and Technology | Zhang H.,Jiangnan University | Zhang H.,Sudan University of Science and Technology
Comprehensive Reviews in Food Science and Food Safety | Year: 2012

This article presents an overview of the recent advances into the health promoting potentials of oat β-glucan. Oat β-glucan (OβG) consists mainly of the linear polysaccharide (1→3), (1→4)-β-D-glucan and is often called β-glucan. This soluble oat fiber is able to attenuate blood postprandial glycemic and insulinemic responses, to lower blood total cholesterol and low-density lipoprotein (LDL) cholesterol, and to improve high-density lipoprotein (HDL) cholesterol and blood lipid profiles as well as to maintain body weight. Thus, OβG intake is beneficial in the prevention, treatment, and control of diabetes and cardiovascular diseases. In addition, OβG can stimulate immune functions by activating monocytes/macrophages and increasing the amounts of immunoglobulin, NK cells, killer T-cells, and so on, which will improve resistance to cancer and infectious and parasitic diseases, as well as increase biological therapies and their prevention. All these health benefits of OβG may be explained by its physicochemical properties (such as viscosity, molecular weight) which can be affected by extraction methods and its behavior in gastrointestinal tract. Articles documenting these health benefits and effects are reviewed. © 2012 Institute of Food Technologists®. Source

Chi X.,Jiangnan University | Wang M.Y.L.,University of Melbourne | Reuter M.A.,Outotec Oyj
Journal of Cleaner Production | Year: 2014

This paper investigates the collection channels of waste electrical and electronic equipment (WEEE or e-waste) and household recycling behaviors in Taizhou city of China. Taking a questionnaire survey as the main approach, it explores the household generation of eighteen types of e-wastes and analyses the distribution of six disposal alternatives. Besides, it also assesses the determinants of choosing collection channels and evaluates households' attitudes in voluntary return of e-waste. The study found that informal collection is the primary disposal channel of urban household e-waste. A considerable proportion of the obsolete appliances are stored at home, given to others, or discarded, but the amount of e-waste flowing to formal collectors remains small. Compared with formal counterparts, informal collectors are advantageous in the aspects of collection scope, convenience of service, flexibility, and accessibility. An integrated collection system which includes the informal collectors and effective incentive schemes should be designed to fit with the characteristics of Chinese household disposal habits and the socioeconomic conditions. © 2014 Elsevier Ltd. All rights reserved. Source

Xia Y.,Changshu Institute of Technology | Wu X.-J.,Jiangnan University
IETE Technical Review (Institution of Electronics and Telecommunication Engineers, India) | Year: 2015

To improve the quality of state-space exploration and the performance of object tracking, this paper proposes a new adaptive ball particle filter for robust visual tracking. The proposed algorithm guarantees the valid particles in propagation of particle filter using an innovative ball sampling mode. In contrast to conventional approaches, the proposed algorithm uses much fewer particles to ameliorate the diversity of distribution, and effectively overcomes the particle degeneration problem. By the iterative movement of the ball between successive frames, particles move towards the regions with higher values of the posterior density function. Furthermore, the number of particles is estimated adaptively by the tracked object and background. Theoretical analysis and simulated experiments show the superiority of the proposed method. © 2015 by the IETE. Source

Temperature feature of scale factor of micro-electro mechanical systems (MEMS) gyroscope sensor was analyzed in detail. A new nonlinear temperature model of the scale factor, based on the least squares support vector machine (LS-SVM), was presented to compensate thermal error of gyroscope sensor. Compared with the RBF neural network model, the LS-SVM model decreased the root mean square error (RMSE) of the gyroscope sensor dynamic measurement from 38.9 deg/hour to 20.2 deg/hour. Copyright © 2015 American Scientific Publishers All rights reserved. Source

Liu S.,Wuhan University | Liu S.,Jiangnan University | Zhou J.,Wuhan University | Zhang L.,Wuhan University
Journal of Physical Chemistry C | Year: 2011

Plate-like Fe2O3 nanoparticles were prepared in microporous regenerated cellulose films and then completely removed from the cellulose matrix by calcination. Crystallite size and properties variations of the nanosized Fe2O3 during γ- to α-phase transformation were investigated. The γ-Fe2O3 nanoparticles with an initial particle size of 24 nm increased from 26 to 83 nm with an increase of the calcination temperature from 350 to 800 C, and the phase transformation temperature was about 500 C. The nanoparticles made at 350 and 450 C exhibited superparamagnetic properties with the corresponding blocking temperature (TB) of about 83 and 80 K. The nanoparticles made at 500, 600, and 700 C not only exhibited Curie transitions with TB's of about 77, 54, and 15 K but also had Morin transitions from a pure antiferromagnet to a ferromagnet occurring at about 238, 240, and 246 K, respectively. However, the nanoparticles made at 800 C only gave a clear Morin transition from a pure antiferromagnet to a ferromagnet at about 250 K. Furthermore, the nanoparticles also displayed different electrochemical properties. © 2011 American Chemical Society. Source

Lu X.-F.,Jiangnan University | Lu X.-F.,Central South University | Xiao P.,Central South University
Carbon | Year: 2013

Silicon carbide nanofibers (SiCNFs) used as the second reinforcements of carbon/carbon composites were grown radially on the carbon fiber surface. The microstructure of SiCNFs and their effects on the microstructure and flexural properties of C/C composites were investigated. Results show that there are many defects such as twin crystals and stacking faults in SiCNFs which were grown by catalytic chemical vapor deposition. During the same process, the skin region of carbon fiber has changed. Several SiC layers are formed and the arrangement of the graphite layers around SiC layers is more orderly. In the next chemical vapor infiltration, due to the induction of SiCNFs, the middle textural pyrocarbon were formed firstly and then is the high textural pyrocarbon. The existence of SiCNFs also contributes to the three-phase interface between pyrocarbon, SiCNFs and carbon fibers, resulting in a good bond between carbon fiber and matrix. Those structural changes lead the better flexural properties of SiCNF-C/C composites compared with C/C composites. © 2013 Elsevier Ltd. Source

Wang X.,Jiangnan University
Nanjing Li Gong Daxue Xuebao/Journal of Nanjing University of Science and Technology | Year: 2014

The decentralized quickest change detection is a common decision problem in the sensor network application. Being different from the classic quickest change detection based on the cumulative sum statistics, an idea of the decentralized quickest change detection based on the cluster analysis is proposed, and an implementation empirically feasible is designed. The implementation comes from the equivalence between K-means clustering and principal component analysis. The implementation does not require pre-change and post-change probability density function of the sensor observation values and the sensors' local computing in advance, and numerical simulations show that it has a smaller detection delay and a smaller probability of false alarm. Source

Prospective cathode materials LiNi0.7 x MgxCo 0.3 O2 (0 ≤ x ≤ 0.1) for a lithium-ion secondary battery were synthesized using a sol-gel method. The structural and electrochemical properties were examined by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), cyclic voltammetry(CV), and charge-discharge tests. The results show that the LiNi0.7 x MgxCo 0.3 O2 maintains the α-NaFeO2 type layered structure regardless of the magnesium content in the range x ≤ 0.1. On the other hand, Mg-doping improves the capacity retention well. Besides, the Mg-doping promotes the diffusion of Li+ in LiNi0.7Co 0.3O2. Moreover, Mg-doping suppresses the phase transitions that usually occur in LiNiO2 during cycling and improves the charge-discharge reversibility of Li/LiNi0.7Co 0.3O2. High temperature cycling performance of the cathode at 55.5°C is also improved by Mg-doping, which is possibly attributed to the total stronger metal-oxygen bonding and the enhanced structure stability of those delithiated Mg-doped cathodes during cycling. © 2014 Hailang Zhang. Source

Peng L.,Jiangnan University
IFAC Proceedings Volumes (IFAC-PapersOnline) | Year: 2015

A recursive probabilistic principal component analysis (PPCA) based data-driven fault identification method is proposed to handle the missing data samples and the mode tran-sition in multi-mode process. This model is recursively obtained by using the increasing number of normal observations with partly missing data. First, based on the singular value of historic data matrix, the whole process is divided into different steady modes and mode transitions. For steady modes, the conventional PPCA is used to obtain the principal components, and to impute the missing data. When the mode is a mode transition, the proposed recursive PPCA is applied, which can actually reveal the between-mode dynamics for process monitoring and fault detection. After that, in order to identify the faults, a contribution analysis method is developed and used to identify the variables which make the major contributions to the occurrence of faults. The effectiveness of the proposed approach is demonstrated by the Tennessee Eastman chemical process. The results show that the presented approach can accurately detect abnormal events, identify the faults, and it is also robust to mode transitions. © 2015, (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved. Source

Ma P.,Jiangnan University | Ma P.,TU Eindhoven | Spoelstra A.B.,TU Eindhoven | Schmit P.,TU Eindhoven | Lemstra P.J.,TU Eindhoven
European Polymer Journal | Year: 2013

Fully bio-based and biocompostable poly (lactic acid)/poly (β-hydroxybutyrate-co-β-hydroxyvalerate) (PLA/PHBV) blends were prepared by melt compounding. PHBV with a high β-hydroxyvalerate content (40 mol%) was used in this work. Miscibility between the PLA and the PHBV, phase morphology, thermal behavior, mechanical properties and toughening mechanism of the PLA/PHBV blends were investigated. The blends showed two separate glass transition temperatures, indicating that the PLA and PHBV are not miscible. Transmission electron microscopy (TEM) showed that PHBV changed gradually from a dispersed phase into a continuous matrix up to 50 wt% of the PHBV. At low PHBV content (<20 wt%), the crystallization of fine dispersed PHBV domains was suppressed resulting in rubbery particles in the amorphous PLA matrix due to lack of nuclei. The structure-property study indicates that the ductility and toughness of the PLA can be effectively improved by incorporation of 10-30 wt% of the PHBV, as evidenced by a significant increase in the elongation at break and impact toughness. The local deformation mechanism was well studied by scanning electron microscopy (SEM). It revealed that fibrillation, partial interfacial debonding, PHBV domain cavitation and matrix yielding are involved in the toughening mechanism of the PLA/PHBV blends under impact and tensile testing conditions. © 2013 Elsevier B.V. All rights reserved. Source

Wang X.,Xihua University | Wang S.,Jiangnan University
Applied Soft Computing Journal | Year: 2016

Minimum class variance support vector machine (MCVSVM) and large margin linear projection (LMLP) classifier, in contrast with traditional support vector machine (SVM), take the distribution information of the data into consideration and can obtain better performance. However, in the case of the singularity of the within-class scatter matrix, both MCVSVM and LMLP only exploit the discriminant information in a single subspace of the within-class scatter matrix and discard the discriminant information in the other subspace. In this paper, a so-called twin-space support vector machine (TSSVM) algorithm is proposed to deal with the high-dimensional data classification task where the within-class scatter matrix is singular. TSSVM is rooted in both the non-null space and the null space of the within-class scatter matrix, takes full advantage of the discriminant information in the two subspaces, and so can achieve better classification accuracy. In the paper, we first discuss the linear case of TSSVM, and then develop the nonlinear TSSVM. Experimental results on real datasets validate the effectiveness of TSSVM and indicate its superior performance over MCVSVM and LMLP. © 2015 Elsevier B.V. Source

Zheng H.,Dalian Polytechnic University | Zheng L.,Jiangnan University
Fibers and Polymers | Year: 2014

Dyeing characteristics of meta-aramid fibers were investigated in supercritical carbon dioxide by employing three disperse dyes and a carrier. The effects of dyeing temperature, pressure, time, dye concentration, CO2 flow, and carrier concentration on dyeing properties were investigated. The results showed that meta-aramid fiber could be dyed in supercritical carbon dioxide. Its color depth was improved with increasing dyeing temperature, pressure, time, dye concentration, CO2 flow, and carrier concentration. Moreover, the color depth could be significantly improved by adding the carrier. The dyeing procedure of supercritical carbon dioxide fluid did not influence the chemical structure and antistatic properties of the meta-aramid fiber. The maximum decomposition temperature and breaking strength of the dyed meta-aramid fiber are slightly increased. The dyed meta-aramid fiber in supercritical carbon dioxide had good fastness, which was rated at 4-5. © 2014 The Korean Fiber Society and Springer Science+Business Media Dordrecht. Source

Lu X.-F.,Central South University | Lu X.-F.,Jiangnan University | Xiao P.,Central South University
Ceramics International | Year: 2014

Effects of in situ grown carbon nanofibers (CNFs) on the oxidation behavior and residual mechanical properties of C/C composites are discussed. Results show that CNFs grown on the surface of carbon fibersfiber can decrease the mass loss of C/C composites after a short-time oxidation. Moreover, the CNF-C/C composite after oxidation still has higher residual flexural strength compared with the C/C composite, due to the little mass loss and the oxidation inhibition of carbon fibersfiber and the fiber/matrix interface. © 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved. Source

Wang Z.-W.,University of Jinan | Jun Wang,Jiangnan University
JVC/Journal of Vibration and Control | Year: 2011

An inverse substructure method is developed for the analysis of the dynamical characteristics of a three-substructures coupled system based on the inverse substructure method of a two-substructures coupled system. The unknown substructure-level frequency response functions (FRFs) and coupling stiffness can be predicted, and the system-level response of key components can be obtained by using the method when the system-level FRFs needed are all measured. To verify the validity of the inverse substructure method of a three-substructures coupled system, a lumped mass-spring-damper model with three substructures coupled is taken as an example for numerical validation. The prediction is exactly the same as the ''Given''. To further check out the accuracy of the method, the experiment of a physical prototype is carried out, and the predicted substructure-level FRFs are in good agreement with those that are measured. The method is applied to the analysis of a product-transport- system, which is treated as a coupled system composed of a key component, a product and a vehicle. The effect of the coupling stiffness on the dynamic response of key components is investigated. The result indicates that reducing the coupling stiffness of the product-vehicle interface can largely lower the response of key components. © The Author(s) 2010. Source

Guo M.,Jiangnan University | Jin T.Z.,U.S. Department of Agriculture | Wang L.,Auburn University | Scullen O.J.,U.S. Department of Agriculture | Sommers C.H.,U.S. Department of Agriculture
Food Control | Year: 2014

Edible antimicrobial coating solutions incorporating chitosan, lauric arginate ester (LAE) and nisin were developed to reduce foodborne pathogen contamination on ready-to-eat (RTE) meats. RTE deli meat samples were directly coated with the solutions, or treated with solution-coated polylactic acid (PLA) films. The antimicrobial efficacy of the coatings and films against Listeria innocua inoculated onto the surface of RTE meat samples was investigated. Antimicrobial coatings with 1.94mg/cm2 of chitosan and 0.388mg/cm2 of LAE reduced L.innocua by ca. 4.5logCFU/cm2. Nisin (486IU/cm2) showed less effectiveness than LAE (0.388mg/cm2) and addition of nisin to the antimicrobial coatings or films containing LAE (0.388mg/cm2) did not enhance the total antimicrobial effectiveness. Combining antimicrobial coatings or films with flash pasteurization (FP), which uses short burst of steam under pressure, further reduced L.innocua, achieving over a 5log reduction. There was no significant difference in the effectiveness of antimicrobial films versus the coatings (p>0.05). These data show the potential use of antimicrobial packaging alone, or in combination with FP, in preventing foodborne illness due to post-processing contamination of RTE meat products. © 2013. Source

Liu L.,Jiangnan University
Journal of Intelligent and Fuzzy Systems | Year: 2015

Filters play an important role in studying fuzzy logics. From logical point of view, filters correspond to sets of provable formulae. The aim of this paper is to solve two problems appeared in (α, β]-intuitionistic fuzzy filters of residuated lattices. Some characteristics of (α, β]-intuitionistic fuzzy filters ( (α, β]-intuitionistic fuzzy P-filters) are obtained. The relations among (α, β]-intuitionistic fuzzy filters, cut sets and s-upper cut sets are established. The 'Extension property' and 'Triple of equivalent characteristics' of (α, β]-intuitionistic fuzzy P-filters are also presented. © 2015 - IOS Press and the authors. Source

Lam H.-M.,Chinese University of Hong Kong | Remais J.,Emory University | Fung M.-C.,Chinese University of Hong Kong | Xu L.,Jiangnan University | Sun S.S.-M.,Chinese University of Hong Kong
The Lancet | Year: 2013

Food supply and food safety are major global public health issues, and are particularly important in heavily populated countries such as China. Rapid industrialisation and modernisation in China are having profound effects on food supply and food safety. In this Review, we identified important factors limiting agricultural production in China, including conversion of agricultural land to other uses, freshwater deficits, and soil quality issues. Additionally, increased demand for some agricultural products is examined, particularly those needed to satisfy the increased consumption of animal products in the Chinese diet, which threatens to drive production towards crops used as animal feed. Major sources of food poisoning in China include pathogenic microorganisms, toxic animals and plants entering the food supply, and chemical contamination. Meanwhile, two growing food safety issues are illegal additives and contamination of the food supply by toxic industrial waste. China's connections to global agricultural markets are also having important effects on food supply and food safety within the country. Although the Chinese Government has shown determination to reform laws, establish monitoring systems, and strengthen food safety regulation, weak links in implementation remain. Source

Ding F.,Jiangnan University
JVC/Journal of Vibration and Control | Year: 2011

The stochastic gradient identification algorithm has slow convergence rates. This paper presents a modified stochastic gradient algorithm by introducing a convergence index in order to improve the convergence rate of the parameter estimation. The parameter estimation accuracy can be enhanced by choosing the convergence index and a numerical example shows that the proposed method is efficient. © The Author(s) 2010. Source

Lu Y.C.,Nanjing Agricultural University | Zhang S.,Jiangnan University | Yang H.,Nanjing Agricultural University
Journal of Hazardous Materials | Year: 2015

Isoproturon (IPU) is a herbicide widely used to prevent weeds in cereal production. Due to its extensive use in agriculture, residues of IPU are often detected in soils and crops. Overload of IPU to crops is associated with human health risks. Hence, there is an urgent need to develop an approach to mitigate its accumulation in crops. In this study, the IPU residues and its degradation products in wheat were characterized using ultra performance liquid chromatography-time of fight tandem-mass spectrometer/mass spectrometer (UPLC-TOF-MS/MS). Most detected IPU-derivatives were sugar-conjugated. Degradation and glycosylation of IPU-derivatives could be enhanced by applying salicylic acid (SA). While more sugar-conjugated IPU-derivatives were identified in wheat with SA application, lower levels of IPU were detected, indicating that SA is able to accelerate intracellular IPU catabolism. All structures of IPU-derivatives and sugar-conjugated products were characterized. Comparative data were provided with specific activities and gene expression of certain glucosyltransferases. A pathway with IPU degradation and glucosylation was discussed. Our work indicates that SA-accelerated degradation is practically useful for wheat crops growing in IPU-contaminated soils because such crops with SA application can potentially lower or minimize IPU accumulation in levels below the threshold for adverse effects. © 2014 Elsevier B.V. Source

Zhang J.,Jiangnan University
Xitong Fangzhen Xuebao / Journal of System Simulation | Year: 2016

A real-time simulation algorithm was proposed to generate a wide range of the common aviation weather condition for the flight simulator based-on a set of dynamic satellite cloud images. With this efficient weather simulation algorithm, a fast radar echo visual simulating method was proposed. The proposed method used the 2D simplified Navier-Stokes and microphysics equations to implement the essential numerical simulation of the aviation weather condition. By this way, the complex problem of large-scale cloud resolving and particle-backscattering computing could be viewed as a simple 2D multi-resolution image processing. Real application on the flight simulator shows that the proposed method can provide a vividly visual airborne weather radar display in real-time on a normal PC platform. © 2016, The Editorial Board of Journal of System Simulation. All right reserved. Source

Ji X.,Jiangnan University | Su H.,Zhejiang University
IEEE Transactions on Automatic Control | Year: 2016

Petersen's lemma on matrix uncertainty is commonly used in the analysis and design for uncertain systems with time-varying norm-bounded uncertain parameter. In this note, Petersen's lemma is extended to the case where the uncertain inequality contains two uncertain matrix pairs. The condition is given such that the Petersen's lemma gives a necessary and sufficient condition. A numerical example is given to show the effectiveness of the proposed method. © 1963-2012 IEEE. Source

Toure A.,Institute Polytechnic | Xueming X.,Jiangnan University
Comprehensive Reviews in Food Science and Food Safety | Year: 2010

Lignans are compounds found in a variety of plant materials including flaxseed, pumpkin seed, sesame seed, soybean, broccoli, and some berries. The major lignan in flaxseed is called secoisolariciresinol diglucoside (SDG).Once ingested, SDGis converted in the colon into active mammalian lignans, enterodiol, and entero-lactone, which have shown promise in reducing growth of cancerous tumors, especially hormone-sensitive ones such as those of the breast, endometrium, and prostate. Known for their hydrogen-donating antioxidant activity as well as their ability to complex divalent transition metal cations, lignans are propitious to human health. The extraction methods vary fromsimple to complex depending on extraction, separation, fractionation, identification, and detection of the analytes. Flax lignan is also a source of useful biologically active components found in plant foods, such as phytochemicals, and it is considered a functional food. The safety issues in flaxseed are also briefly discussed. © 2010 Institute of Food Technologists®. Source

Sun J.,Jiangnan University | Bhatia M.,University of Otago
Inflammation and Allergy - Drug Targets | Year: 2014

Substance P, a neuropeptide belonging to the tachykinin family is a pleiotropic peptide with specific neural activities and involved in immunomodulation and antimicrobial host defense. It has been found to modulate a variety of inflammatory processes, including acute pancreatitis, sepsis, systemic inflammatory response syndrome and asthma. Also notably, substance P shares common bio-physical and-chemical properties such as low molecular mass, cathionicity and amphipathicity with antimicrobial peptides. It is therefore suggested to take part in host defense at specialized locations. The review aims to highlight undated understanding on substance P in inflammation, allergy and its antimicrobial activities with potential implications in infection and host defense. Therapeutic implications of the peptide, modulators of peptide expression and receptor signalling will be highlighted in each topic. Taken together, these topics will be of significant values for future pharmaceutical investigation and application of the field. © 2014 Bentham Science Publishers. Source

Tian N.,Jiangnan University | Lai C.-H.,University of Greenwich
International Journal of Machine Learning and Cybernetics | Year: 2014

Quantum-behaved particle swarm optimization (QPSO), like other population-based algorithms, is intrinsically parallel. The master-slave (synchronous and asynchronous) and static subpopulation parallel QPSO models are investigated and applied to solve the inverse heat conduction problem of identifying the unknown boundary shape. The performance of all these parallel models is compared. The synchronous parallel QPSO can obtain better solutions, while the asynchronous parallel QPSO converges fast without idle waiting. The scalability of the static subpopulation parallel QPSO is not as good as the master-slave parallel model. © 2013 Springer-Verlag Berlin Heidelberg. Source

Tan Z.-B.,Jiangnan University
Chinese Journal of Biologicals | Year: 2010

Objective: To highly express the alkaline lipase (Lip I) from Penicillium cyclopium in Pichia pastoris. Methods: The cDNA fragment of lip I gene was amplified from Penicillium cyclopium PG37 by RT-PCR and cloned into expression vector pPIC9K. The constructed recombinant plasmid pPIC9K-lip I was transformed to Pichia pastoris GS115. High copy recombinant GS115/lip I was screened for expression under induction of methanol, based on which the condition for expression was preliminarily optimized. Results: After GS115/lip I was cultured in the BMMY medium, at an original pH of 6.0, containing 1.0% methanol at 30°C for 96 h, the Lip I activity in fermentation supernatant was 10.5 U/ml. However, after culture in the BMMY medium containing 1.0% methanol at 24°C for 120 h, at an original pH of 9.0, the Lip I activity reached 407 U/ml. Conclusion: The Lip I from Penicillium cyclopium was highly expressed in Pichia pastoris. Source

Zhao J.,Jiangnan University | Zhao J.,Bauhaus University Weimar | Jiang J.-W.,Bauhaus University Weimar | Jia Y.,Bauhaus University Weimar | And 2 more authors.
Carbon | Year: 2013

Explicit solutions for the cohesive energy between carbon nanotubes, graphene and substrates are obtained through continuum modeling of the van der Waals interaction between them. The dependence of the cohesive energy on their size, spacing and crossing angles is analyzed. Checking against full atom molecular dynamics calculations and available experimental results shows that the continuum solution has high accuracy. The equilibrium distances between the nanotubes, graphene and substrates with minimum cohesive energy are also provided explicitly. The obtained analytical solution should be of great help for understanding the interaction between the nanostructures and substrates, and designing composites and nanoelectromechanical systems. © 2013 Elsevier Ltd. All rights reserved. Source

Siegert M.,Pennsylvania State University | Li X.-F.,Jiangnan University | Yates M.D.,Pennsylvania State University | Logan B.E.,Pennsylvania State University
Frontiers in Microbiology | Year: 2014

High current densities in microbial electrolysis cells (MECs) result from the predominance of various Geobacter species on the anode, but it is not known if archaeal communities similarly converge to one specific genus. MECs were examined here on the basis of maximum methane production and current density relative to the inoculum community structure. We used anaerobic digester (AD) sludge dominated by acetoclastic Methanosaeta, and an anaerobic bog sediment where hydrogenotrophic methanogens were detected. Inoculation using solids to medium ratio of 25% w/v resulted in the highest methane production rates (0.27 mL mL-1 cm-2, gas volume normalized by liquid volume and cathode projected area) and highest peak current densities (0.5 mA cm-2) for the bog sample. Methane production was independent of solid to medium ratio when AD sludge was used as the inoculum. 16S rRNA gene community analysis using pyrosequencing and qPCR confirmed the convergence of Archaea to Methanobacterium and Methanobrevibacter, and of Bacteria to Geobacter, despite their absence in AD sludge. Combined with other studies, these findings suggest that Archaea of the hydrogenotrophic genera Methanobacterium and Methanobrevibacter are the most important microorganisms for methane production in MECs and that their presence in the inoculum improves the performance. © 2014 Siegert, Li, Yates and Logan. Source

Ziauddin M.F.,Georgia Regents University | Hua D.,Jiangnan University | Tang S.-C.,Georgia Regents University
Cancer and Metastasis Reviews | Year: 2014

Endocrine therapy of breast cancer is perhaps the oldest form of effective and well-tolerated targeted cancer systemic treatment, in both the adjuvant and metastatic disease settings. The most commonly used endocrine therapy agents are selective estrogen receptor modulators, aromatase inhibitors, and selective estrogen receptor downregulators. De novo or acquired resistance to these agents is a significant clinical problem. Preclinical and clinical investigations to understand this resistance have yielded significant advances in understanding cell signaling and the possible mechanisms of resistance. These mechanisms of resistance are as diverse as the biology of breast cancer and can arise from alterations in any of the cell signaling pathway components. A growing understanding of these mechanisms has provided rationale for development of strategies to overcome the resistance. Many of these mechanisms of resistance involve adaptive upregulation of alternate signaling pathways, such as growth factor signaling, and cross talk between estrogen receptor and growth factor signaling. Clinical trials are focusing on cotargeting these alternate pathways along with estrogen receptor signaling. It is becoming evident that, as with all cancer therapy, strategies to overcome resistance need to be individualized, and it is important to identify biomarkers to guide the use of these strategies. This manuscript systemically reviews the recent preclinical and clinical trials on the novel and pathway-driven agents that have shown significant promise in enhancing the efficacy and overcoming the resistance in the hormonal treatment of breast cancer. Future directions including biomarker selection and the role of next generation sequencing will be discussed. © 2014 Springer Science+Business Media. Source

Li X.,Jiangnan University | Deeg H.J.,Fred Hutchinson Cancer Research Center | Deeg H.J.,University of Washington
Experimental Hematology | Year: 2014

The objective of is this article is to review murine xenotransplantation models for myelodysplastic syndromes (MDS). The difficulties in achieving sustained engraftment of MDS cells in immunodeficient mice may lie in innate characteristics of the MDS clones and microenvironmental factors. Engraftment of very low numbers of CD45+ clonal MDS cells has been achieved with intravenous injection; higher rates of engraftment are obtained via the intramedullary route. Coinjection of certain stroma components with hematopoietic cells overcomes limitations of intravenous (IV) administration, allowing for engraftment of high proportions of human CD45+ cells in mouse spleen and marrow. Expression of CD146 on stroma cells conveys an engraftment-facilitating effect. Clonal MDS cells have been propagated for periods beyond 6 months and have been transplanted successfully into secondary recipients. Engraftment of human clonal MDS cells with stem cell characteristics in immunodeficient mice is greatly facilitated by coinjection of stroma/mesenchymal cells, particularly with IV administration. CD146 expression on stroma is an essential factor; however, no model develops the laboratory and clinical features of human MDS. Additional work is needed to determine cellular and noncellular factors required for the full evolution of MDS. © 2014 ISEH - Society for Hematology and Stem Cells. Source

Huang M.,Jiangnan University | Lu R.,Michigan State University
Postharvest Biology and Technology | Year: 2010

Mealiness is a symptom of fruit physiological disorder, which is characterized by abnormal softness and lack of free juice in the fruit. This research investigated the potential of hyperspectral scattering technique for detecting mealy apples. Spectral scattering profiles between 600 and 1000. nm were acquired, using a hyperspectral imaging system, for 'Red Delicious' apples that either had been kept in refrigerated air at 4°C or undergone mealiness treatment at 20°C and 95% relative humidity for various time periods of 0-5 weeks. The spectral scattering profiles at individual wavelengths were quantified by relative mean reflectance for 10. mm scattering distance for the test apples. The mealiness of the apples was determined by the hardness and juiciness measurements from destructive confined compression tests. Prediction models for hardness and juiciness were developed using partial least squares regression (PLS); they had low correlation with the destructive measurement (r≤0.76 for hardness and r≤0.54 for juiciness). Moreover, PLS discriminant models were built for two-class ('mealy' and 'nonmealy'), three-class ('mealy', 'semi-mealy' and 'fresh') and four-class ('mealy', 'soft', 'dry', and 'fresh') classification. The overall classification accuracies for the two classes of 'nonmealy' and 'mealy' apples were between 74.6% and 86.7%, while the overall accuracies in the three-class classification ranged between 60.2% and 71.2%. Much better results (≥93% accuracy) were achieved for the two-class classification of 'mealy' apples that had undergone longer time of mealiness treatment (i.e., 4-5 weeks of storage at 20°C and 95% relative humidity). Hyperspectral scattering technique is potentially useful for nondestructive detection of apple mealiness; however, improvements in classification accuracy are needed. © 2010. Source

Huang S.-Q.,South China University of Technology | Li J.-W.,Jiangnan University | Li Y.-Q.,Infinitus China Co. | Wang Z.,South China University of Technology
International Journal of Biological Macromolecules | Year: 2011

A water-soluble neutral polysaccharide (GLP-F1-1) was isolated from the fruiting bodies of Ganoderma lucidum by DEAE Sepharose Fast Flow and Sephacryl S-500 High Resolution Chromatography. The neutral polysaccharide had an average molecular weight (Mw) of approximately 2.5×106kDa. GC analysis showed that this polysaccharide was mainly composed of glucose and galactose in the molar ratio of 34:1. 1H and 13C NMR spectroscopy in combination with GC-MS technique indicated that the new polysaccharide had a backbone chain of 1,4-disubstituted-β-glucoseopyranose and 1,4,6-trisubstituted-β-glucoseopyranosyl, while the branched chains were mainly composed of 1,6-disubstituted-β-glucopyranosyl and 1,4-disubstituted-β-galactoseopyranosyl residues. © 2010 Elsevier B.V. Source

Wang J.,Jiangnan University
Wei sheng wu xue bao = Acta microbiologica Sinica | Year: 2011

With the aim of elucidating the physiological characteristics of a low-pH tolerant strain Torulopsis glabrata RT-6. The intracellular pH, ATP level, the membrane bound H(+)-ATPase activity, the membrane fatty acid composition and the intracellular polyphosphate content of the parent strain CCTCC M202019 and the mutant strain RT-6 were determined and compared under different pH conditions. Compared to that of the parent strain, the cell growth and pyruvate concentration of the mutant strain RT-6 were increased by 60.6% and 85.4% (56 h), respectively. Similarly, the strain RT-6 had higher intracellular pH compared to the control strain at external pH5.0, 4.5, and 4.0. The ATP content, the membrane bound H(+)-ATPase activity and the intracellular polyphosphate content of the mutant strain RT-6 were increased by 11.7%, 13.6%, and 3.5% at external pH 5.5, while at external pH 4.0, increased by 61%, 38.6%, and 30.8%, respectively. Furthermore, the mutant strain RT-6 exhibited higher content of the unsaturated fatty acids and higher membrane fluidity. Discharging more intracellular H+ and inhibiting the intracellular H+ production contributed to the strain RT-6's higher intracellular pH, and therefore the acid tolerance. Source

Zhang W.,Jiangnan University
Engineering Computations (Swansea, Wales) | Year: 2014

Purpose - The purpose of this paper is to solve the heavy computational problem of parameter estimation algorithm. Design/methodology/approach - Presents a decomposition least squares based iterative identification algorithm. Findings - Can estimate the parameters for linear or pseudo-linear systems and have lower computational burden. Originality/value - This paper adopts a decomposition technique to solve engineering computation problems and offers a potential and efficient algorithm. © Emerald Group Publishing Limited. Source

Zhao L.,Jiangnan University
Wei sheng wu xue bao = Acta microbiologica Sinica | Year: 2011

We developed an engineered Sacchromyces cerevisiae strain to produce L-lactic acid efficiently by using glucose as carbon source. For construction of the strain CEN. PK2-1C [LDH], we integrated an LDH gene coding L-lactic acid dehydrogenase from bovine into the genome of S. cerevisiae via homologous recombination and meanwhile knocked out a PDC1 gene coding pyruvate decarboxylase. The carbon fluxes were led into L-Lactic acid. We analyzed the Km value of these key enzymes to NADH and over-expressed an NADH oxidase (nox) from Streptococcus pneumoniae into the cytoplasm for the construction of S. cerevisiae CEN. PK2-1C [LDH] -nox. Compared to the initial strain, the yield of L-lactic acid in CEN. PK2-1C [LDH] fermentation broth increased from 0 g/L to 15 g/L and the concentration of ethanol decreased from 27.3 g/L to 16.2 g/L. Compared to CEN. PK2-1C [LDH], the yield of L-lactic acid in CEN. PK2-1C [LDH] -nox fermentation broth increased from 15 g/L to 20 g/L and the concentration of ethanol decreased from 16.2 g/L to 8.2 g/L. The carbon metabolic flux was redistributed to efficient accumulation of L-lactic acid through two-sided control that heterologous expression of the gene LDH and decreasing the ratio of NADH/NAD+. Source

Zhang D.,Jiangnan University
Wei sheng wu xue bao = Acta microbiologica Sinica | Year: 2011

Glycoproteins derived from yeast expression systems are usually hyperglycosylated and contain non human N-glycans of the high mannose type. alpha-1, 6-mannosyltransferase (och1p) plays a key role in modifying glycoproteins with high mannose-type N-glycans. Therefore, we engineered a P. pastoris X-33 strain with OCH1 gene deletion. This strain was further used as a host for production of glycoproteins with smaller N-glycans. First, we knockout the URA3 gene of P. pastoris X-33 which encoding orotidine-5'-phosphate decarboxylase by double homologous recombination. Then, we knockout OCH1 gene using URA3 gene as a selecting marker, and obtained X-33 (och1-) strain. After that, this mutant strain was used to expression the glycoprotein granulocyte-macrophage colony-stimulating factor (GM-CSF). Different from hyperglycosylated GM-CSF expressed in wild type P. pastori X-33, the glycoprotein expressed in X-33 (och1-), containing smaller N-glycan. The results suggested that X-33 (och1-) strain can be used as an expression host for production of glycoproteins lacking the outer-chain hypermannoses, and a host could be used for further N-glycosylation engineering. Source

Zhang M.,Jiangnan University | Zhang M.,South China University of Technology | Roisnel T.,CNRS Chemistry Institute of Rennes | Dixneufc P.H.,CNRS Chemistry Institute of Rennes
Advanced Synthesis and Catalysis | Year: 2010

A convenient one-pot synthesis of 2,3-di- substituted, 2,3,6- trisubstituted, and 2,3,6,7-tetrasubstituted quinoline analogues from terminal alkynes via sequential ruthenium(II) and para-toluenesulfonic acid (p-TSA) co-catalyzed reactions is described. The catalytic process is shown to take place first via intermediate formation of an allyl ketone and then addition of an aniline derivative to the allyl ketone. The p-TSA is a catalyst for both allyl ketone and quinoline synthetic steps. The method allowed us to synthesize a wide range of quinoline derivatives and introduce different substituents by employing various simple starting materials. The reaction allows the synthesis of halogen-containing products. © 2010 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. Source

Huang H.,Shanghai Maritime University | Zhu D.,Shanghai Maritime University | Ding F.,Jiangnan University
Journal of Intelligent and Robotic Systems: Theory and Applications | Year: 2014

An integrated multiple autonomous underwater vehicle (multi-AUV) dynamic task assignment and path planning algorithm is proposed by combing the improved self-organizing map (SOM) neural network and a novel velocity synthesis approach. Each target is to be visited by one and only one AUV, and a shortest path between a starting point and the destination is found in the presence of the variable current environment and dynamic targets. Firstly, the SOM neuron network is developed to assign a team of AUVs to achieve multiple target locations in dynamic ocean environment. The working process involves special definition of the rule to select the winner, the computation of the neighborhood function, and the method to update weights. Then, the velocity synthesis approach is applied to plan a shortest path for each AUV to visit the corresponding target in dynamic environment subject to the ocean current being variable and targets being movable.Lastly, to demonstrate the effectiveness of the proposed approach, simulation results are given in this paper. © Springer Science+Business Media Dordrecht 2013. Source

Zhang R.,Jiangnan University
Wei sheng wu xue bao = Acta microbiologica Sinica | Year: 2011

The (R)- and (S)- specific carbonyl reductases (RCR and SCR) with enhanced green fluorescence protein ( EGFP) were expressed in Saccharomyces cerevisiae W303-1A. By analysis of EGFP expression spectrum, the protein distribution and subcellular localization of two enzymes were determined. By SOE-PCR method, the fused genes of RCR and SCR with EGFP were cloned and constructed on an eukaryotic expression vector pYX212, and transformed into S. cerevisiae by electroporation. With fluorescent protein as selection marker, the expression and distribution of RCR and SCR were observed. The EGFP expression in S. cerevisiae cells was observed under the laser scanning confocal microscopy. It was showed that the two enzymes expressed stably in S. cerevisiae and mainly distributed in the intracellular membrane and cytoplasm, while minority were dotted in the center of cells. According to the fluorescent intensity, the expression level of SCR was much higher than that of RCR in S. cerevisiae. The biotransformation results showed that the fused proteins EGFP-RCR and EGFP-SCR reduced 2-hydroxyacetophenone to give (R)- and (S)-1-phenyl-1 ,2-ethanediol (PED) respectively, with the optical purity of 86.6% in a yield of 70.4% for the former enzyme and with the optical purity of 92.3% in a yield of 81.8% for the latter one. The fusion of RCR or SCR with EGFP showed no effect in protein conformation and biological activity. When compared with the recombinant Escherichia coli harboring RCR or SCR, the genetically engineered S. cerevisiae had obvious advantages in the biological function. The study provided the solid foundations for visible research of functional expression controlling and subcellular localization of carbonyl reductases. Source

Li C.,Jiangnan University | Bovik A.C.,University of Texas at Austin
Journal of Electronic Imaging | Year: 2010

Objective image and video quality measures play important roles in numerous image and video processing applications. In this work, we propose a new content-weighted method for fullreference (FR) video quality assessment using a three-component image model. Using the idea that different image regions have different perceptual significance relative to quality, we deploy a model that classifies image local regions according to their image gradient properties, then apply variable weights to structural similarity image index (SSIM) [and peak signal-to-noise ratio (PSNR)] scores according to region. A frame-based video quality assessment algorithm is thereby derived. Experimental results on the Video Quality Experts Group (VQEG) FR-TV Phase 1 test dataset show that the proposed algorithm outperforms existing video quality assessment methods. © 2010 SPIE and IS&T. Source

Pan Z.-H.,Jiangnan University
Ruan Jian Xue Bao/Journal of Software | Year: 2014

Negative information plays an important role in fuzzy knowledge representation and reasoning. This paper distinguishes between contradictory negative relation and opposite negative relation in fuzzy concept, and discovers a characteristic of fuzzy concept that if a pair of opposite concepts are fuzzy concepts, then there must exists a "medium" fuzzy concept between them; conversely, if there is a medium fuzzy concept between the two opposite concepts, then opposite concepts must be fuzzy concepts. Thus, negation of fuzzy concept is considered to include contradictory negation, opposite negation and medium negation. In order to provide a base of logic for the three kinds of negations, this paper proposes a fuzzy propositional logic, FLCOM, with contradictory negation, opposite negation and medium negation, discusses operations and interesting properties as well as characteristics of FLCOM, presents a semantic interpretation of FLCOM, and proves reliability theorem. In order to show that FLCOM is applicable for dealing with fuzzy proposition and its different negations in practical problem, the paper studies applications of FLCOM to fuzzy decision making in an example. Based on FLCOM, the study discusses formal representation of fuzzy proposition and different negations in decision rules, presents an approach to measure truth value of fuzzy proposition and threshold of truth value, and describes reasoning and realization of fuzzy decision making in the example based on fuzzy production rules. © 2014 ISCAS. Source

Qiu F.,Binzhou University | Cui B.-T.,Jiangnan University
International Journal of Automation and Computing | Year: 2010

This paper investigates the problem of robust exponential stability for neutral systems with time-varying delays and nonlinear perturbations. Based on a novel Lyapunov functional approach and linear matrix inequality technique, a new delay-dependent stability condition is derived. Since the model transformation and bounding techniques for cross terms are avoided, the criteria proposed in this paper are less conservative than some previous approaches by using the free-weighting matrices. One numerical example is presented to illustrate the effectiveness of the proposed results. © 2010 Institute of Automation, Chinese Academy of Sciences and Springer-Verlag Berlin Heidelberg. Source

Dai J.,Jiangnan University
Journal of the Franklin Institute | Year: 2010

This paper addresses the problem of quantized feedback control for networked control systems (NCSs). Firstly, with consideration of the effect of network conditions, such as network-induced delays, data packet dropouts and signal quantization, the sampled-data model of closed-loop feedback system based on the updating sequence of the event-driven holder is formulated, from which a continuous system with two additive delay components in the state is developed. Subsequently, by making use of a novel interval delay system approach, the stability analysis and control synthesis for NCSs with two/one static quantizer are solved accordingly. Finally, two illustrative examples are given to show the effectiveness and advantage of the method. © 2010 The Franklin Institute. Published by Elsevier Ltd. All rights reserved. Source

Radiotherapy is the standard therapy for nasopharyngeal carcinoma (NPC); however, radioresistance can hinder successful treatment. Here we report that microRNA (miR)-24 acts as a tumor suppressor and radiosensitizer in NPC cells and xenografts by targeting Jab1/CSN5. Although accumulating evidence has shown that Jab1/CSN5 functions as an oncoprotein in human cancers, its regulation through miRs has not been described. In this study, we found that Jab1/CSN5 functioned in a manner opposite to that of miR-24 in NPC tumorigenesis and radioresistance. We demonstrated that miR-24 inhibits Jab1/CSN5 translation via direct binding to its 3′ untranslated region (3′UTR) and 5′UTR, leading to tumor growth inhibition, and sensitizes NPC tumors to radiation in vivo. Furthermore, silencing Jab1/CSN5 phenocopied the function of miR-24 in NPC cells after ionizing radiation treatment, resulting in increased apoptosis. Finally, we analyzed 50 paired samples of primary and matched recurrent NPC tissues from 25 NPC patients and subjected them to high-throughput genomic quantitative nuclease protection assay for quantifying simultaneously miR and mRNA levels. Our results showed that miR-24 levels were significantly decreased in recurrent NPC and that levels of Jab1/CSN5, as its target, were higher than those in primary NPC. Together, our findings indicate that miR-24 inhibits NPC tumor growth and increases NPC radiosensitivity by directly regulating Jab1/CSN5 and that both miR-24 and Jab1/CSN5 can serve as prognostic markers for NPC recurrence; this, in turn, may provide a promising therapeutic strategy for reversing NPC radioresistance.Oncogene advance online publication, 9 May 2016; doi:10.1038/onc.2016.147. © 2016 Macmillan Publishers Limited Source

Pan Z.-H.,Jiangnan University
2010 International Conference on Machine Learning and Cybernetics, ICMLC 2010 | Year: 2010

In this paper, the negative relation in fuzzy information is distinguished contradictory negative relation and opposite negative relation, and a character of fuzzy information is discovered that if two opposite concepts are fuzzy concepts, there must exist a "medium" fuzzy concept between them, vice versa. Therefore, we proposed that negative relation in fuzzy information include contradictory negative relation, opposite negative relation and medium negative relation, and that formalization definition of them. Based on this cognition, we defined a new fuzzy set FSCOM with contradictory negation, opposite negation and medium negation, and discussed characteristics of FSCOM, operations and their properties in FSCOM. © 2010 IEEE. Source

Wang G.-Z.,Modern Educational Technology Center | Wang B.-X.,Jiangnan University
Journal of Lightwave Technology | Year: 2015

A novel and simple design of five-band terahertz absorber is investigated. This absorber consists of a four-gap comb resonator and a dielectric slab on top of a metallic board. The simulation results show that the structure has five distinct absorption peaks, each with the absorption of over 98%. Multiband absorption property can be explained by the overlapping of the LC resonances, dipolar response, and high-order resonance of the structure. Moreover, the design gives considerable freedom to shift or change the frequencies of the absorber by varying the arm lengths of the comb. The proposed absorber has potential applications in detection, imaging, and sensing. © 1983-2012 IEEE. Source

Lou X.Y.,Jiangnan University
Proceedings - International Conference on Natural Computation | Year: 2016

This work addresses the impulsive control problem of memristive systems with variable delays, which consist of memristor-based piecewise linear systems. Under some mild assumptions, we firstly construct the model of memristive piecewise systems and then employ an impulse-based control approach to stabilize memristive piecewise systems. As a difference to related efforts for memristive systems with impulsive control, we explore conditions under which the impulsive strategy can be readily constructed. An example related to the memristive Chua's system is presented to illustrate the efficiency of the proposed results using variable impulsive intervals. © 2015 IEEE. Source

Tian N.,Jiangnan University
Proceedings - 14th International Symposium on Distributed Computing and Applications for Business, Engineering and Science, DCABES 2015 | Year: 2015

Quantum-behaved particle swarm optimization (QPSO) has successfully been applied to unimodal and multimodal optimization problems. However, with the emerging and popular of big data and deep machine learning, QPSO encounters limitations with high dimensions. In this paper, QPSO with cooperative co evolution (QPSO-CC) is used to decompose the high dimensional problems into several lower dimensional problems and optimize them separately. The numerical experimental results show that QPSO-CC has comparative or even better performance than other algorithms. © 2015 IEEE. Source

Ji X.,Jiangnan University
Mathematical Problems in Engineering | Year: 2015

A new random drift model and the measured angular rate model of MEMS gyro are presented. Based on such models, signal processing techniques are used to decrease gyro drift. Kalman filtering equations have been built for static measurement and dynamic measurement of the gyro array, which combines N individual gyros into a single rate estimate. By selecting the favorable cross correlation coefficient between individual gyros in the noise correlation matrix, the gyro array performance can be significantly improved over that of any individual component device. A new gyro array dynamic measurement procession is also presented. Data fusion of the difference between individual gyro dynamic measurements can identify every gyro real-Time drift out and get its noisy test. Based on the laws of the gyro curve motion, the tested dynamic signal is filtered to improve the gyro accuracy. All these processings have been implemented by digital signal processor. Simulation results show that the static drift can decrease from 22.1°/h to 0.184°/h and the dynamic drift can decrease from 22.1°/h to 8.98°/h. © 2015 Xunsheng Ji. Source

Chen Y.,University of Hohenheim | Chen Y.,Jiangnan University | Schwack W.,University of Hohenheim
Journal of Chromatography A | Year: 2013

A rapid and efficient method for preliminary screening of four tetracyclines (tetracycline, chlortetracycline, oxytetracycline, doxycline) and three fluoroquinolones (enrofloxacin, ciprofloxacin, marbofloxacin), mostly detected in milk, by high-performance thin-layer chromatography-fluorescence detection and electrospray ionization mass spectrometry (HPTLC-FLD-ESI/MS) is highlighted. The optimized separation of the target antibiotics on ethylenediamine tetraacetic acid modified silica gel plates showed marked benefits for screening purposes. Besides, selective and sensitive densitometry in fluorescence mode was established with excitation at 366. nm for the tetracyclines, 300. nm for enrofloxacin and ciprofloxacin, and 280. nm for marbofloxacin. Limits of detection (LOD) and quantitation (LOQ) with 95% confidence were in the range of 12-25 and 45-95. μg/kg, respectively, in milk samples. Recoveries of target antibiotics from milk samples spiked at three critical levels (50, 100 and 150. μg/kg) ranged from 76% to 105%. More importantly, a mass selective detection (MSD) was established as additional tool for confirmatory purposes. Using the elution-head based TLC-MS interface, the optimized elution flow consisting of acetonitrile/ammonium formate buffer (9/1, v/v) at a rate of 0.3. mL/min enabled time-dependent resolution of analytes from the major interfering compounds, thus circumventing serious ion suppression effects. The established MSD assay also offered high sensitivity (25. μg/kg) for confirmation, meeting Commission Regulation (EU) No. 37/2010. © 2013 Elsevier B.V. Source

Xiao S.,Jiangnan University | Xiao S.,Nanyang Technological University | Xu S.,Nanyang Technological University
Critical Reviews in Solid State and Materials Sciences | Year: 2014

High-efficiency Si solar cells have attracted great attention from researchers, scientists, engineers of photovoltaic (PV) industry for the past few decades. Many researchers, scientists, and engineers in both academia and industry seek solutions to improve the cell efficiency and reduce the cost. This desire has drawn stronger support from major funding agencies and industry and stimulated a growing number of major research and research infrastructure programs, and a rapidly increasing number of publications in this filed. This article reviews materials, devices, and physics of high-efficiency Si solar cells developed over the last 20 years and presents representative examples of superior performances and competitive advantages. In this paper there is a fair number of topics, not only from the material viewpoint, introducing various materials that are required for high-efficiency Si solar cells, such as base materials (FZ-Si, CZ-Si, MCZ-Si, and multi-Si), emitter materials (diffused emitter and deposited emitter), passivation materials (Al-BSF, high-low junction, SiO2, SiOx, SiNx, Al 2O3 and a-Si:H), and other functional materials (antireflective layer, transparent conductive oxide and metal electrode), but also from the device and physics point of view, elaborating on physics, cell concept, development, and status of most types of high-efficiency Si solar cells, including passivated emitter and rear contact (PERC), passivated emitter and rear locally diffused (PERL), passivated emitter and rear totally-diffused (PERT), Pluto, PANDA, interdigitated back-contacted (IBC), emitter-wrap-through (EWT), metallization-wrap-through (MWT), heterojunction with intrinsic thin-layer (HIT), and so on. Finally, the technical data of these high-efficiency Si solar cells has been tabulated. Copyright © Taylor and Francis Group, LLC. Source

Dai P.,Jiangnan University
Open Cybernetics and Systemics Journal | Year: 2015

Presently population aging issue becomes increasingly serious, old people occupy more and more proportions in Chinese population. To some extent, old people living quality represents a country’s civil living standards and a country comprehensive strength. The paper utilizes multiple linear regression models to analyze old people sports leisure demands. From six perspectives as old people gender, age, cultural standard, monthly income, income satisfaction, physical health status, it analyzes every perspective relations with pass time, relax, capacity improving, making friends and interaction, exploration of knowledge these five aspects. From obtained function relations, it gets conclusion that old people sports leisure demands have certain relations with old people classification. © Ping Dai. Source

Well-defined and monodisperse dendritic platinum nanoparticles (DPNs) are successfully prepared by a rapid, one-step, and efficient route with high yield in aqueous solution, wherein neither organic solvents nor surfactants are employed, ensuring the as-made DPNs definitely have "clean" surfaces, allowing them to exhibit high activity for both methanol oxidation and p-nitrophenol reduction. This proposed strategy for simple and facile preparation of "clean" metal nanocatalysts paves the way for accurately evaluating and further improving their intrinsic catalytic activity. Source

Wen J.,Jiangnan University
Applied Mechanics and Materials | Year: 2013

A robust receding horizon control (RHC) scheme is developed for uncertain discrete-time Markov Jump Linear Systems (MJLS) with time delay and actuator saturation where the system uncertainties and jumping transition probabilities are assumed to belong to some convex sets. Firstly, when time delay is considered, a sufficient condition of minimizing upper bound of the cost function and mean square stability of the closed-loop system are established based on the Lyapunov Krasovskii function which depend on the current time jump mode. At each sampling time, an optimal control gain can be obtained by solving the semi-definite programming (SDP) problem. Then, the proposed strategy is extended to design robust RHC scheme for uncertain MJLS with both time delay and actuator saturation. Moreover, the domain of attraction can be estimated through a modified invariant ellipsoid. Finally, a numerical example is given to illustrate the feasibility and effectiveness of the proposed method. © (2013) Trans Tech Publications, Switzerland. Source

Li Q.,Jiangnan University | Loke A.Y.,Hong Kong Polytechnic University
Cancer Nursing | Year: 2015

Background: With the research focus on family caregiving shifting from the individual to the dyadic level, there is a need to develop a conceptual framework that focused on caregiver-patient dyads. Objective: The aim of this study was to develop a preliminary conceptual framework for cancer couple dyads, to "Live With Love." Methods: A literature search was conducted among 4 electronic databases to identify couple-based intervention studies related to couples coping with cancer. This report differs from a traditional literature review in that we synthesized the models or frameworks used in these studies rather than the outcomes of the studies. A preliminary Live With Love Conceptual Framework (P-LLCF) for cancer couple dyads was developed based on the conceptual frameworks adopted in related literature on spousal caregiving for patients with cancer. Results: This P-LLCF contains 3 domains: event situation, dyadic mediators, and caregiver-patient dyads (appraisal, coping, and adjustment/outcomes). The various components in this P-LLCF will work together to benefit the positive dyadic adjustment/outcomes of the spousal caregiver-patient dyads in the cancer dyads' journey of coping with cancer. Conclusions: This P-LLCF sheds new light on the study of cancer couple dyads. It will be potentially valuable for guiding the related research and development of interventions on cancer couple dyads. Implications for Practice: Future research is needed to assess the outcome of interventions that focus on different components. It is also needed to develop measurements to assess dyadic adjustment/outcomes in nursing practice. Copyright © 2015 Wolters Kluwer Health, Inc. All rights reserved. Source

Lou X.,Jiangnan University
Mathematical Problems in Engineering | Year: 2014

We consider here the effect of the Ornstein-Uhlenbeck colored noise on the stochastic resonance of the feed-forward-loop (FFL) network motif. The FFL motif is modeled through the FitzHugh-Nagumo neuron model as well as the chemical coupling. Our results show that the noise intensity and the correlation time of the noise process serve as the control parameters, which have great impacts on the stochastic dynamics of the FFL motif. We find that, with a proper choice of noise intensities and the correlation time of the noise process, the signal-to-noise ratio (SNR) can display more than one peak. © 2014 Xuyang Lou. Source

Xu S.,Jiangnan University
Mathematical Problems in Engineering | Year: 2014

A stable cracking particles method (CPM) based on updated Lagrangian kernels is proposed. The idea of CPM is to model the crack topology by a set of cracked particles. Hence no representation of the crack surface is needed making the method useful for problems involving complex fracture patterns as they occur in dynamics and under fast loading conditions. For computational efficiency, nodal integration is exploited in the present paper. In order to avoid instabilities, a scheme is presented to stabilized the integration. Moreover, a set of simple cracking rules are proposed in order to prevent numerical fracture. The method is applied to two benchmark problems and shows good accuracy. © 2014 S. Xu. Source

Liu X.-G.,Hangzhou Normal University | Wang H.,Hangzhou Normal University | Chen B.,Hangzhou Normal University | Zou Y.,Zhejiang Sci-Tech University | And 4 more authors.
Chemical Communications | Year: 2015

By using a tetraphenylethene (TPE)-based ligand, tetrakis[4-(4-carboxyphenyl)phenyl]ethene (H4TCPPE), a porous metal-organic framework [Zn2(TCPPE)] (1) is synthesized, which exhibits strong fluorescence and is capable of gas adsorption and sensing volatile organic compounds. © The Royal Society of Chemistry 2015. Source

Zhang C.,Jiangnan University | Zhang C.,Nanjing Southeast University | Zhang Z.,Nanjing Southeast University | Shi J.,Nanjing Institute of Technology
Journal of Constructional Steel Research | Year: 2012

Low yield strength steel 100 is widely applied to design shear panel damper for its high ductility. The practical shear strain of low yield strength steel shear panel damper at present is around 12% while the elongation of the LYS100 tends to go around 60%, which indicates that the ductility of LYS100 has not been fully utilized. To develop function separate damper with LYS100, links of the frame fixture, rib shape and panel shape that affect the deformation capacity of the damper were investigated experimentally. The test results show that the deformation capacity can be improved greatly by alleviating the stress concentration locating at the panel corners. The largest shear strain of 70% is achieved by the optimization on the parameters. The large deformation capacity provides a compact, low-cost alternative to structural designers. © 2012 Elsevier Ltd. All rights reserved. Source

Xiao Z.,Jiangnan University | Bourennane S.,Ecole Centrale Marseille
Remote Sensing Letters | Year: 2014

This letter presents a constrained nonnegative matrix factorization (NMF)-based method for hyperspectral image dimensionality reduction. The proposed method combines the NMF and Laplacian Eigenmaps (LE). It overcomes the drawback that NMF does not consider the intrinsic geometric structure of the data space. In LE framework, an affinity graph is constructed to encode the geometrical information. The proposed technique seeks a matrix factorization which considers the graph structure. We also use the smoothness constraint and the sparsity constraint on the lower dimensional matrices. The gradient descent approach is used to find solution of the proposed model. In order to evaluate the developed method, we use the support vector machine and the k-nearest neighbourhood (KNN) approach for hyperspectral image classification. Experiments are done on a hyperspectral image. The results are compared with those obtained using other hyperspectal image dimensionality reduction methods. The classification accuracy using the proposed method is higher than that of the alternative approaches. © 2013 Taylor & Francis. Source

Xiao Z.,Jiangnan University | Xiao Z.,Ecole Centrale Marseille
Remote Sensing Letters | Year: 2014

In this letter, a novel method using both spectral and spatial information is proposed for hyperspectral image classification. Image pixels are partitioned into two sets: a labelled set and an unlabelled set. The goal of this method is to label all the unlabelled pixels. The proposed technique consists of two steps. In the first step, a similarity-based model, in the spectral domain, computes the probability that an unlabelled pixel has the same label as a labelled pixel. In order to improve the classification accuracy, we provide a powerful way to account for spatial information in the second step. Evaluation of the developed method is done on hyperspectral images. Experimental results are compared with those obtained using other hyperspectal image classification methods. The proposed approach performs better than the other ones in terms of classification accuracy. © 2014 Taylor & Francis. Source

Xiao Z.,Jiangnan University | Xiao Z.,Fresnel Institute
Remote Sensing Letters | Year: 2014

This letter presents a non-negative matrix factorization (NMF) with local preservation framework for hyperspectral image dimensionality reduction. The proposed method combines the NMF and local manifold learning techniques. It overcomes the drawback that the NMF does not consider local spatial information of the data space. In this framework, we take the local spatial information into the low-dimensional representations. In order to do that, we introduce two local manifold learning approaches: locally linear embedding and local tangent space alignment. The local geometric structure can be effectively modelled through these approaches. This framework is a general framework which also includes the NMF with Laplacian Eigenmaps method. The gradient descent approach is used to find the solution of the proposed models. In order to evaluate the developed method, the support vector machine (SVM) and the k-nearest neighbour (k-NN) approaches are used for hyperspectral image classification. Experiments are done on a hyperspectral image and the classification accuracies are compared. The proposed methods can improve the classification accuracies (by at least for SVM and by at least for k-NN) when comparing with the other approaches. © 2014 Taylor & Francis. Source

Kinoshita T.,Osaka University | Fujita M.,Jiangnan University
Journal of Lipid Research | Year: 2016

Glycosylphosphatidylinositols (GPIs) act as membrane anchors of many eukaryotic cell surface proteins. GPIs in various organisms have a common backbone consisting of ethanolamine phosphate (EtNP), three mannoses (Mans), one non- N -acetylated glucosamine, and inositol phospholipid, whose structure is EtNP-6Manα-2Manα-6Manα-4GlNα-6myo inositol-P-lipid. The lipid part is either phosphatidylinositol of diacyl or 1-alkyl-2-acyl form, or inositol phosphoceramide. GPIs are attached to proteins via an amide bond between the C-terminal carboxyl group and an amino group of EtNP. Fatty chains of inositol phospholipids are inserted into the outer leafl et of the plasma membrane. More than 150 different human proteins are GPI anchored, whose functions include enzymes, adhesion molecules, receptors, protease inhibitors, transcytotic transporters, and complement regulators. GPI modification imparts proteins with unique characteristics, such as association with membrane microdomains or rafts, transient homodimerization, release from the membrane by cleavage in the GPI moiety, and apical sorting in polarized cells. GPI anchoring is essential for mammalian embryogenesis, development, neurogenesis, fertilization, and immune system. Mutations in genes involved in remodeling of the GPI lipid moiety cause human diseases characterized by neurological abnormalities. Yeast Saccharomyces cerevisiae has >60 GPIanchored proteins (GPI-APs). GPI is essential for growth of yeast. In this review, we discuss biosynthesis of GPI-APs in mammalian cells and yeast with emphasis on the lipid moiety. Copyright © 2016 by the American Society for Biochemistry and Molecular Biology, Inc. Source

Zhang M.,Nanjing University of Technology | Zhao P.,Nanjing University of Technology | Leng Y.,Jiangnan University | Chen G.,Nanjing University of Technology | And 2 more authors.
Chemistry - A European Journal | Year: 2012

An acid-base bifunctional ionic solid catalyst [PySaIm] 3PW was synthesized by the anion exchange of the ionic-liquid (IL) precursor 1-(2-salicylaldimine)pyridinium bromide ([PySaIm]Br) with the Keggin-structured sodium phosphotungstate (Na 3PW). The catalyst was characterized by FTIR, UV/Vis, XRD, SEM, Brunauer-Emmett-Teller (BET) theory, thermogravimetric analysis, 1H NMR spectroscopy, ESI-MS, elemental analysis, and melting points. Together with various counterparts, [PySaIm] 3PW was evaluated in Knoevenagel condensation under solvent and solvent-free conditions. The Schiff base structure attached to the IL cation of [PySaIm] 3PW involves acidic salicyl hydroxyl and basic imine, and provides a controlled nearby position for the acid-base dual sites. The high melting and insoluble properties of [PySaIm] 3PW are relative to the large volume and high valence of PW anions, as well as the intermolecular hydrogen-bonding networks among inorganic anions and IL cations. The ionic solid catalyst [PySaIm] 3PW leads to heterogeneous Knoevenagel condensations. In solvent-free condensation of benzaldehyde with ethyl cyanoacetate, it exhibits a conversion of 95.8 % and a selectivity of 100 %; the conversion is even much higher than that (78.2 %) with ethanol as a solvent. The solid catalyst has a convenient recoverability with only a slight decrease in conversion following subsequent recyclings. Furthermore, the new catalyst is highly applicable to many substrates of aromatic aldehydes with activated methylene compounds. On the basis of the characterization and reaction results, a unique acid-base cooperative mechanism within a Schiff base structure is proposed and discussed, which thoroughly explains not only the highly efficient catalytic performance of [PySaIm] 3PW, but also the lower activities of various control catalysts. Cooperative catalyst: The ionic solid prepared by pairing pyridine-based Schiff base tethered cations with phosphotungstate anions is proved to be a recoverable efficient heterogeneous catalyst for Knoevenagel condensations by means of the unique bulk-type acid-base cooperative mechanism (see scheme). Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Source

Ruberu T.P.A.,University of Rochester | Dong Y.,Jiangnan University | Das A.,University of Rochester | Eisenberg R.,University of Rochester
ACS Catalysis | Year: 2015

The present study reports photelectrochemical H2 evolution using a water-solubilized S3-cap-CdSe quantum dot-sensitized NiO as the photocathode and either [Co(bdt)2]- (bdt =1,2-benzenedithiolate) or Ni(DHLA)x (DHLA= the anion of dihydrolipoic acid) complex as the H2-forming catalyst. The NiO-S3-cap-CdSe/[Co(bdt)2]- system produces H2 with a turnover frequency of 3000 per CdSe mol·h. Faradaic efficiency for this system is essentially quantitative. Both systems are stable for more than 16 h. (Chemical Presented). © 2015 American Chemical Society. Source

Liu X.,Zhejiang University | Zhou Y.,Zhejiang University | Cong L.,Zhejiang University | Ding F.,Jiangnan University
Journal of Process Control | Year: 2011

Internal thermally coupled distillation column (ITCDIC) is a frontier of energy saving distillation researches, which is a great improvement on conventional distillation column (CDIC). However its high degree thermal coupling makes the control design a bottleneck problem, where data-driven model leads to obvious mismatch with the real plant in the high-purity control processes, and a first-principle model which is comprised of complex mass balance relations and thermally coupled relations could not be directly used as control model for the bad online computing efficiency. In the present work, wave theory is extended to the control design of ITCDIC with variable molar flow rates, where a general nonlinear wave model of ITCDIC processes based on the profile trial function of the component concentration distribution is proposed firstly; combined with the thermally coupled relations, a novel wave model based generic model controller (WGMC) of ITCDIC processes is developed. The benzene-toluene system for ITCDIC is studied as illustration, where WGMC is compared with another generic model controller based on a data-driven model (TGMC) and an internal model controller (IMC). In the servo control and regulatory control, WGMC exhibits the greatest performances. Detailed research results confirm the efficiency of the proposed wave model and the advantage of the proposed WGMC control strategy. © 2011 Elsevier Ltd. All rights reserved. Source

Qi W.,Jiangnan University
Wei sheng wu xue bao = Acta microbiologica Sinica | Year: 2011

High hydrostatic pressure (HHP) could be synergized with Nisin in neutral food system to achieve commercial sterilization. The mechanism of synergistic inactivation by HHP treatment and Nisin was investigated at molecular level alongside ultramicroscopic structure. Bacillus subtilis strain was subjected to HHP (100 -500 MPa for 15 min) alone and in combination with Nisin (200 IU/mL) in PBS (pH 7.0). Membrane permeability was studied by fluorescent dye and ultraviolet absorption. Membrane lipid, protein and DNA changes were detected by Fourier Transform Infrared. Transmission Electron Microscope (TEM) was used to detect the morphological changes. In neutral food system, the combined effect of HHP and Nisin reduced the population of the bacteria by 2.5 log, while at the same time increasing the membrane permeability by 10% - 60%. The physical state of membrane phospholipid molecules changed from liquid crystalline to gel state with a decrease in membrane fluidity. Treatments at elevated pressures were observed to cause protein denaturalization. Results from TEM demonstrate that cell content leaked owing to the synergistic effect. This confirms that Nisin is an effective bactericide when combined with HHP in neutral food and that the two inactivation methods have a synergistic effect. Source

Xu H.-N.,Jiangnan University
Journal of Solution Chemistry | Year: 2013

Cloud point extraction (CPE) is an efficient and green separation technology as an alternative to conventional organic solvent extractions. How to accelerate the phase separation of aqueous surfactant solutions conveniently is of great importance. In this study, the effect of power ultrasound on the phase separation of aqueous solutions of a nonionic surfactant, Triton X-114 [(1,1,3,3-tetramethylbutyl) phenyl-polyethylene glycol], has been studied as a function of temperature by means of rheo-small angle light scattering. It is found that anomalous viscosity enhancements and micron-sized scattering aggregates are observed for the surfactant solutions after ultrasound irradiation. The aggregate growth is quantified by the characteristic length of the aggregates. It is proposed that ultrasonic cavitation can promote the aggregation or transition of surfactants in the aqueous solutions, resulting in the formation of micrometer-scale phase-separated droplets. This work may advance further understanding of the controlled transformation of aggregates in surfactant solutions via power ultrasound and promote its applications in CPE. © 2013 Springer Science+Business Media New York. Source

Xu H.,Nanjing Medical University | Wu X.,Nanjing Medical University | Qin H.,Nanjing Medical University | Tian W.,Nanjing Medical University | And 7 more authors.
Journal of the American Society of Nephrology | Year: 2015

Diabetic nephropathy (DN) is one of the most common complications associated with diabetes and characterized by renal microvascular injury along with accelerated synthesis of extracellular matrix proteins causing tubulointerstitial fibrosis. Production of type I collagen, the major component of extracellularmatrix, is augmented during renal fibrosis after chronic exposure to hyperglycemia.However, the transcriptional modulator responsible for the epigenetic manipulation leading to induction of type I collagen genes is not clearly defined. We show here that tubulointerstitial fibrosis as a result of DN was diminished in myocardin-related transcription factor A (MRTF-A) -deficient mice. In cultured renal tubular epithelial cells and the kidneys of mice withDN,MRTF-Awas induced by glucose and synergizedwith glucose to activate collagen transcription. Notably, MRTF-A silencing led to the disappearance of prominent histone modifications indicative of transcriptional activation, including acetylated histone H3K18/K27 and trimethylated histone H3K4. Detailed analysis revealed thatMRTF-A recruited p300, a histone acetyltransferase, and WD repeat-containing protein 5 (WDR5), a key component of the histone H3K4 methyltransferase complex, to the collagen promoters and engaged these proteins in transcriptional activation. Estradiol suppressed collagen production by dampening the expression and binding activity of MRTF-A and interfering with the interaction between p300 and WDR5 in renal epithelial cells. Therefore, targeting the MRTF-A-associated epigenetic machinery might yield interventional strategies against DN-associated renal fibrosis. Copyright © 2015 by the American Society of Nephrology. Source

Tao J.,Zhejiang University | Hu W.,Huzhou Teachers College | Wang S.,Jiangnan University
Neurocomputing | Year: 2014

Recently, domain adaptation learning (DAL) has shown surprising performance by utilizing labeled samples from the source (or auxiliary) domain to learn a robust classifier for the target domain of the interest which has a few or even no labeled samples. In this paper, by incorporating classical graph-based transductive SSL diagram, a novel DAL method is proposed based on a sparse graph constructed via kernel sparse representation of data in an optimal reproduced kernel Hilbert space (RKHS) recovered by minimizing inter-domain distribution discrepancy. Our method, named as Sparsity regularization Label Propagation for Domain Adaptation Learning (SLPDAL), can propagate the labels of the labeled data from both domains to the unlabeled one in the target domain using their sparsely reconstructed objects with sufficient smoothness by using three steps: (1) an optimal RKHS is first recovered so as to minimize the data distributions of two domains; (2) it then computes the best kernel sparse reconstructed coefficients for each data point in both domains by using l1-norm minimization in the RKHS, thus constructing a sparse graph; and (3) the labels of the labeled data from both domains is finally propagated to the unlabeled points in the target domain over the sparse graph based on our proposed sparsity regularization framework, in which it is assumed that the label of each data point can be sparsely reconstructed by those of other data points from both domains. Furthermore, based on the proposed sparsity regularization framework, an easy way is derived to extend SLPDAL to out-of-sample data. Promising experimental results have been obtained on both a serial of toy datasets and several real-world datasets such as face, visual video and text. © 2014 Elsevier B.V. Source

Ji X.-S.,Nanjing Southeast University | Ji X.-S.,Jiangnan University
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | Year: 2010

Partial least square (PLS) can decrease the correlation among the power load information. The least square support vector machine (LS-SVM) can get the global optional forecasting result of the power load and decrease the computation burden. Principles of the PLS, LS-SVM and PLS-LS-SVM are introduced. PLS-LS-SVM is used to establish short-term daily power load prediction forecast model and then the model is applied to the daily power load forecast in a certain area in 2008. Mean relative forecasting error and maximal relative forecasting error are 0.685 percent and 8.8599 percent respectively. Compared with the AR(1) model, excellent forecasting accuracy of the PLS-LS-SVM model can supply the short-term power load forecasting an effective way. Source

Ai-Mei D.,Jiangnan University
International Journal of Multimedia and Ubiquitous Engineering | Year: 2014

Support vector machine is an effective pattern classification method. Its time complexity and space complexity is O(n3) and O(n2) respectively for training samples with scale of n. Meanwhile, for core vector machine, the relation between time complexity and the scale of training samples is linear and space complexity is independent with the scale of training samples. In this paper, for the problem of big data classification, the concept and principle of support vector machine are described and support vector machine is converted into the form of minimum enclosing ball, consequently core vector machine is used to efficiently obtain the approximate optimal solution. Experiments confirm that core vector machine algorithm can classify the big data quickly and efficiently. © 2014 SERSC. Source

Wang X.,Jiangnan University | Quinn P.J.,Kings College London
Progress in Lipid Research | Year: 2010

Lipopolysaccharide that constitutes the outer leaflet of the outer membrane of most Gram-negative bacteria is referred to as an endotoxin. It is comprised of a hydrophilic polysaccharide and a hydrophobic component referred to as lipid A. Lipid A is responsible for the major bioactivity of endotoxin, and is recognized by immune cells as a pathogen-associated molecule. Most enzymes and genes coding for proteins responsible for the biosynthesis and export of lipopolysaccharide in Escherichia coli have been identified, and they are shared by most Gram-negative bacteria based on genetic information. The detailed structure of lipopolysaccharide differs from one bacterium to another, consistent with the recent discovery of additional enzymes and gene products that can modify the basic structure of lipopolysaccharide in some bacteria, especially pathogens. These modifications are not required for survival, but are tightly regulated in the cell and closely related to the virulence of bacteria. In this review we discuss recent studies of the biosynthesis and export of lipopolysaccharide, and the relationship between the structure of lipopolysaccharide and the virulence of bacteria. © 2009 Elsevier Ltd. All rights reserved. Source

Zhao P.,Nanjing University of Technology | Leng Y.,Jiangnan University | Zhang M.,Nanjing University of Technology | Wang J.,Nanjing University of Technology | And 2 more authors.
Chemical Communications | Year: 2012

An ionic solid catalyst by pairing Keggin polyoxometalate-anions with Pd II-coordinated nitrile-tethered ionic liquid cations was synthesized, characterized, and tested for aerobic oxidation of benzene to biphenyl. A unique heterogeneous intramolecular electron transfer mechanism is proposed to understand its high activity. This journal is © 2012 The Royal Society of Chemistry. Source

The changes in transcription of genes involved in nitrogen metabolism and curdlan biosynthesis, and total protein expression were firstly analyzed to define the responses of Agrobacterium sp. ATCC 31749 to nitrogen source availability during curdlan fermentation. The transcription of all nitrogen metabolism and regulation genes increased significantly under nitrogen limitation. The genes of carbon (exoC) and nitrogen (ntrB, ntrC, and nifR) metabolism showed distinctive transcriptional responses to nitrogen limitation. Their relative expression level was increased by 14, 9, 7 and 7-fold, respectively. Two-dimentional electrophoresis (2-DE) revealed that the expression of 14 proteins were elevated and 6 proteins were down-regulated significantly under nitrogen starvation. Furthermore, 4 proteins (GroEL, ABC transporter, Atu1730 and enoyl-acyl carrier protein reductase) in which the expression level changed significantly were identified. The results showed that Agrobacterium sp. regulates its carbon flux and nitrogen assimilation effectively for better survival. Source

Teng Y.,Jiangnan University | Liu R.,Shandong University
Journal of Hazardous Materials | Year: 2013

4-Aminoantipyrine (AAP) is scarcely administered as an analgesic drug because of side effects. The residue of AAP in the environment is potentially harmful. To evaluate the toxicity of AAP from molecular level, the effects of AAP on the important antioxidant enzyme copper-zinc superoxide dismutase (Cu/ZnSOD) were explored using spectroscopic and molecular modeling methods. AAP can spontaneously bind with Cu/ZnSOD with one binding site to form AAP-Cu/ZnSOD complex through hydrogen bond and van der Waals forces. The molecular docking simulation revealed that AAP bound into the Cu/ZnSOD interface of two subdomains, which induced some conformational and microenvironmental changes of Cu/ZnSOD and further caused the inhibition of Cu/ZnSOD activity. The present study provides important insights into toxic mechanism of AAP with Cu/ZnSOD. The estimated research route can be applied to characterize interactions of enzyme systems and other pollutants and drugs. © 2013 Elsevier B.V. Source

Lu X.-Y.,Jiangnan University
International Journal of Control and Automation | Year: 2015

With the further development of production, a higher request to the measurement of straight2line long displacement has been put forward. This article introduces one technique sayings mechanical contact wheel based on Hall components to measure straight line long displacement. This method directly takes movement part oneself as static reference datum, converting two objects relative movement to the rotation of wheel. The Hall components detect the rotation angle and the direction of roll wheel, then the displacement is calculated. The measuring technique has many merits, such as simple and small measuring structure, large measuring range, broaden adoption environment and so on, so having certain application value. © 2015 SERSC. Source

Zhao J.,Jiangnan University
Acta Mechanica | Year: 2015

A nonlinear continuum model of van der Waals interactions is established to relate the size-dependent nonlinear properties of crystalline polyethylene. The explicit formulas are derived from the Lennard-Jones potential function for the van der Waals force between any two polymer chains. The present results are in reasonable agreement with those from present united-atom molecular dynamics simulations. This work is a new effort to establish nonlinear analytical models of molecular mechanics for crystalline polymers, and it should be helpful to provide an efficient route for mechanical characterization of crystalline polymers and related materials. © 2015, Springer-Verlag Wien. Source

Pan T.,Jiangnan University
Xitong Fangzhen Xuebao / Journal of System Simulation | Year: 2014

The main factors were analyzed, which caused errors to harmonic detection of APF, based on instantaneous reactive power theory. The results show that the delay caused by the low-pass filter has a great influence on the detection accuracy. The integration method can reduce the latency in the detection process using simple integrator, delay and gain links instead of the conventional low-pass filter, though further study of it. On this basis, an improved method was proposed, only after simple trigonometric transformation, the integration method can be flexibly applied in single-phase system, and the results of detection can obtain active fundamental current and reactive component simultaneously. The new method for detection of harmonic has improved the detection accuracy in a certain extent. Simulation models of the three-phase symmetric and single-phase systems in the Matlab/Simulink environment were created, to compare and analyze the different simulation results of a low-pass filter and the integration respectively. An experiment proves the good trace of changes in current detection. ©, 2014, Acta Simulata Systematica Sinica. All right reserved. Source

Zhang H.,Jiangsu Agri Animal Husbandry Vocational College | Zhang W.,Jiangsu Agri Animal Husbandry Vocational College | Xu C.,Jiangsu Agri Animal Husbandry Vocational College | Zhou X.,Jiangnan University
International Journal of Biological Macromolecules | Year: 2013

Morphological features, granule composition, and physicochemical properties of waxy wheat starch were compared with those of normal wheat starch. The morphologies and granule populations were found to be similar for the two starches. However, waxy wheat starch contained a smaller proportion of B-type granules, had a larger average granule diameter, and a higher degree of crystallinity than normal wheat starch, as measured by particle size analysis and differential scanning calorimetry. These differences resulted in a higher gelatinization temperature, transition enthalpy, peak viscosity, breakdown, swelling power, lower peak viscosity temperature and final viscosity in waxy wheat starch. These points suggest that waxy wheat starch should have greater resistance to retrogradation during cooling and higher water-holding capacity under dry conditions. Highlighting the differences in physicochemical properties of waxy and normal wheat starches should help point toward effective applications of waxy wheat starch in the food industry. © 2013 Elsevier B.V. Source

Zhang H.,Jiangsu Agri Animal Husbandry Vocational College | Zhang W.,Jiangsu Agri Animal Husbandry Vocational College | Xu C.,Jiangsu Agri Animal Husbandry Vocational College | Zhou X.,Jiangnan University
International Journal of Biological Macromolecules | Year: 2014

The chemical composition, rheological and gelatinization characteristics of waxy wheat flour were investigated. Compared with wheat flour, waxy wheat flour has lower protein (9.52%), amylase (1.02%) and higher crude starch (73.19%) contents. Because of its different chemical composition, waxy wheat flour exhibited some better processing characteristics (water-holding capacity, dough development time, extensibility, swelling power and setback) than normal wheat flour. It also exhibited some defects in rheological characteristics, including a higher degree of softening, a lower Farinograph quality number and smaller resistance to extensibility ratio. Differential scanning calorimetry results showed that waxy wheat flour gelatinized at higher onset (To=60.9°C), peak (Tp=64.9°C), conclusion (Tc=73.6°C) temperatures and required more energy (δH=7.6J/g) to melt gelatinized starch gels. The results of this investigation indicated that blending waxy wheat flour with normal flour is a promising way to improve product quality in baked foods and to prolong the shelf-life of these products. © 2013 Elsevier B.V. Source

Sun M.,University of Missouri | Yang L.,Jiangnan University | Ho D.K.C.,University of Missouri
IEEE Signal Processing Letters | Year: 2012

This letter considers the problem of simultaneously locating multiple disjoint sources and refining erroneous sensor positions using TDOA measurements. The previous work by Yang and Ho to solve this problem cannot provide optimum accuracy for the sensor positions. The proposed estimator improves the previous method so that both the source and the sensor position estimates can achieve the Cramer-Rao lower bound (CRLB) accuracy. The theoretical derivation is corroborated by simulations. © 2012 IEEE. Source

Shi H.,Jiangnan University | Shi H.,Nanjing University | Zou Z.,Nanjing University
Journal of Physics and Chemistry of Solids | Year: 2012

Alkali niobates ANbO 3 (A=Na, K) photocatalysts were prepared by a conventional solid state reaction method. The samples were characterized by X-ray diffraction, UVvis diffuse reflectance spectroscopy, N 2 adsorptiondesorption measurement, and scanning electron microscopy. It was found that ANbO 3 (A=Na, K) are indirect band-gap semiconductors with an orthorhombic system. The band structures and density of states (DOS) were theoretically calculated by the density functional theory. The photocatalytic activities were evaluated by photoreduction of CO 2 into CH 4. It was observed that KNbO 3 showed a higher photocatalytic activity than NaNbO 3 due to the narrower band gap and higher mobile charge carriers, which are helpful to enhance the light absorption and promote photoinduced carriers transport in the photocatalysts so as to improve the photocatalytic performance. © 2012 Elsevier Ltd. All rights reserved. Source

Gu G.,Jiangnan University | Gu G.,Louisiana State University | Marinovici L.,Louisiana State University | Lewis F.L.,University of Texas at Arlington
IEEE Transactions on Automatic Control | Year: 2012

This technical note investigates the problems when the discrete-time multiagent dynamic systems are consensusable, and how to synthesize the consensus feedback control law when the consensusability condition holds. We focus on multiagent systems (MASs) over the undirected graph of the communication topology and derive the consensusability condition for single-input dynamic agent systems under state feedback. By introducing a properly designed dynamic filter into the local control protocols, the consensusability condition can be relaxed. A design procedure is given for the filter and an example shows that it allows consensus whereas standard state feedback protocols do not. © 2012 IEEE. Source

Wang D.,Qingdao University | Ding R.,Jiangnan University | Dong X.,Qingdao University
Circuits, Systems, and Signal Processing | Year: 2012

For a multivariable controlled autoregressive system with autoregressive noises, its corresponding identification model contains a parameter matrix and a parameter vector. This paper presents the hierarchical gradient-based iterative (HGI) algorithm to interactively estimate the parameter matrix and the parameter vector by using the hierarchical identification principle and the gradient search. The simulation results show that the HGI algorithm is effective. © Springer Science+Business Media, LLC 2012. Source

Sun M.,University of Missouri | Yang L.,Jiangnan University | Ho K.C.,University of Missouri
Signal Processing | Year: 2012

This paper addresses the problem of obtaining an efficient estimator for sensor node self-localization using time of arrival (TOA) measurements. A sequential scheme is proposed that consists of closed-form single node localization and sensor position refinement algorithms as primitive. The sequential scheme is able to locate sensor nodes with accuracy approaching the CRLB and it can be realized in both centralized and distributed manners. To combat the communication load for a large-scale network, a reduced-complexity version is also proposed with only slight degradation in the estimation accuracy. © 2012 Elsevier B.V. Source

Zhao P.,Nanjing University of Technology | Leng Y.,Jiangnan University | Wang J.,Nanjing University of Technology
Chemical Engineering Journal | Year: 2012

A heteropolyanion-based cross-linked ionic copolymer was prepared by the anion-exchange of heteropolyacid (HPA) H 5PMo 10V 2O 40 with polymeric ionic liquid (PIL) poly(divinylbenzene-3-n-butyl-1-vinylimidazolium)Br, and characterized by FI-IR, UV-vis, XRD, TG, SEM, elemental analysis and BET surface areas. The characterization results show that the ionic copolymer is an amorphous HPA salt of PIL-cation with a considerable thermal stability, high surface area and large pore volume. Further, the ionic copolymer is revealed to be a highly efficient heterogeneous catalyst for hydroxylation of benzene with H 2O 2 to phenol, showing high activity, convenient recovery and steady reuse. The excellent performance of the novel porous HPA-based copolymer catalyst is discussed in relation to its textural property and intramolecular charge transfer behavior. © 2012 Elsevier B.V. Source

Zhang Y.,Nanjing University | Zhang Y.,Jiangnan University | Zhu C.,Nanjing University
Catalysis Communications | Year: 2012

CP bond formation was realized through the three-component reaction of an amine, an aldehyde and a dialkylphosphite catalyzed by gold complex. The corresponding α-aminophosphonates were afforded in one-pot reaction with high yields under mild conditions. © 2012 Elsevier B.V. Source

Yang Y.,Jiangnan University | Yang Y.,Nanjing Southeast University | Cao J.,Nanjing Southeast University
Nonlinear Analysis: Real World Applications | Year: 2010

In this paper, the optimization techniques for solving a class of non-differentiable optimization problems are investigated. The non-differentiable programming is transformed into an equivalent or approximating differentiable programming. Based on Karush-Kuhn-Tucker optimality conditions and projection method, a neural network model is constructed. The proposed neural network is proved to be globally stable in the sense of Lyapunov and can obtain an exact or approximating optimal solution of the original optimization problem. An example shows the effectiveness of the proposed optimization techniques. © 2009. Source

Zhang J.,Nanjing University | Lei J.,Nanjing University | Xu C.,Jiangnan University | Ding L.,Nanjing University | Ju H.,Nanjing University
Analytical Chemistry | Year: 2010

A sensitive electrochemical immunosensor was proposed by functionalizing single-walled carbon nanohorns (SWNHs) with analyte for microcystin-LR (MC-LR) detection. The functionalization of SWNHs was performed by covalently binding MC-LR to the abundant carboxylic groups on the cone-shaped tips of SWNHs in the presence of linkage reagents and characterized with Raman spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy, and a transmission electron micrograph. Compared with single-walled carbon nanotubes, SWNHs as immobilization matrixes showed a better sensitizing effect. Using home-prepared horseradish peroxidase-labeled MC-LR antibody for the competitive immunoassay, under optimal conditions, the immunosensor exhibited a wide linear response to MC-LR ranging from 0.05 to 20 μ/L with a detection limit of 0.03 μ/L at a signal-to-noise of 3. This method showed good accuracy, acceptable precision, and reproducibility. The assay results of MC-LR in polluted water were in a good agreement with the reference values. The proposed strategy provided a biocompatible immobilization and sensitized recognition platform for analytes as small antigens and possessed promising application in food and environmental monitoring. © 2010 American Chemical Society. Source

Zhao H.,South China University of Technology | Chen W.,South China University of Technology | Lu J.,Jiangnan University | Zhao M.,South China University of Technology
Food Chemistry | Year: 2010

The phenolic profiles and corresponding antioxidant activities of 34 commercial beers in Chinese markets were evaluated. Results found remarkable variations in total and individual phenolic contents as well as antioxidant activity across beer brands. Gallic and ferulic acids were the dominant phenolic compounds identified in the tested beer samples and both of them accounted for >50% of the total phenolic compounds. Results from Pearson correlation analysis suggested that five antioxidant activity assays positively correlated well (p < 0.01) with each other and showed significant positive correlations (p < 0.05) with (+)-catechin, protocatechuic, and caffeic acids contents. Stepwise linear regression further demonstrated that different phenolic components responsible for beer antioxidant activity were dependent on the method used, and that ferulic acid, syringic acid, (+)-catechin, caffeic acid, protocatechuic acid and (-)-epicatechin together made 55.0-88.1% of contribution to the antioxidant activity of beer. © 2009 Elsevier Ltd. All rights reserved. Source

Xu X.-D.,Wuhan University | Chen J.-X.,Jiangnan University | Cheng H.,Wuhan University | Zhang X.-Z.,Wuhan University | Zhuo R.-X.,Wuhan University
Polymer Chemistry | Year: 2012

To realize the self-assembly of an arginine-rich peptide sequence of R 8GRGDS with tumor-targeting and membrane-penetrating functions, a hydrophobic aliphatic tail (stearic acid, C18) was coupled to its N-terminus to construct surfactant-like peptide-amphiphiles (SLPAs). Through increasing the number of C18 tails to enhance the hydrophobic interactions, SLPA2 with two C18 tails and SLPA3 with four C 18 tails can self-assemble into different nanostructures, including spherical micelles, nanorods and nanofibers in aqueous solution. Because the self-assembly of SLPA2 and SLPA3 is mainly driven by the hydrophobic interactions among the C18 tails, the random-coil conformation of the functional R8GRGDS sequence does not change during self-assembly and the resulting self-assembled nanostructures can be seen as a functional R 8GRGDS sequence coated architecture. When using the self-assembled micelles of SLPA3 to load the anti-tumor drug of doxorubicin (DOX) and incubating with HeLa or COS-7 cells, the DOX loaded micelles can efficiently use the tumor-targeting and membrane-penetrating functions of their surface coated R8GRGDS sequences to deliver the drug into HeLa cells. The strategy reported here presents potential for the construction of biocompatible peptide-based biomaterials with favorable bioactivity. © 2012 The Royal Society of Chemistry. Source

Hu A.,Jiangnan University
Chaos (Woodbury, N.Y.) | Year: 2010

The paper studies the existence of generalized synchronization in complex networks, which consist of chaotic systems. When a part of modified nodes are chaotic, and the others have asymptotically stable equilibriums or orbital asymptotically stable periodic solutions, under certain conditions, the existence of generalized synchronization can be turned to the problem of contractive fixed point in the family of Lipschitz functions. In addition, theoretical proofs are proposed to the exponential attractive property of generalized synchronization manifold. Numerical simulations validate the theory. Source

Yang Y.,Jiangnan University | Yang Y.,Nanjing Southeast University | Cao J.,Nanjing Southeast University
Nonlinear Analysis: Real World Applications | Year: 2010

Based on the stability analysis of the impulsive functional differential equation, the exponential synchronization of the complex dynamical network with a coupling delay and impulses is investigated in the paper. The criteria for the exponential synchronization are derived by the geometrical decomposition of network states and linear matrix inequality method. Two examples are given to show the effectiveness of the proposed criteria. © 2009 Elsevier Ltd. All rights reserved. Source

Chee Y.M.,Nanyang Technological University | Kiah H.M.,Nanyang Technological University | Purkayastha P.,Nanyang Technological University | Wang C.,Jiangnan University
IEEE Transactions on Information Theory | Year: 2013

A cross-bifix-free code is a set of words in which no prefix of any length of any word is the suffix of any word in the set. Cross-bifix-free codes arise in the study of distributed sequences for frame synchronization. We provide a new construction of cross-bifix-free codes which generalizes the construction by Bajic to longer code lengths and to any alphabet size. The codes are shown to be nearly optimal in size. We also establish new results on Fibonacci sequences, which are used in estimating the size of the cross-bifix-free codes. © 2013 IEEE. Source

Ding Z.,Northumbria University | Xu M.,Tsinghua University | Lu J.,Tsinghua University | Liu F.,Jiangnan University
IEEE Transactions on Vehicular Technology | Year: 2012

In this paper, we study how to improve wireless security for bidirectional communications. For the scenario with single-antenna nodes, effective criteria for relay and jamming node selection are developed to ensure that the probability to have nonzero secrecy rates is approaching one, given sufficient relays. For the scenario with multiple-antenna nodes, effective precoding is proposed to ensure that the mutual information obtained at the eavesdropper decreases to zero when there is a sufficient number of relays. © 1967-2012 IEEE. Source

Kuang H.,Jiangnan University
Sensors (Basel, Switzerland) | Year: 2013

In this study, we have first developed a rapid and sensitive strip immunosensor based on two heterogeneously-sized gold nanoparticles (Au NPs) probes for the detection of trace lead ions in drinking water. The sensitivity was 4-fold higher than that of the conventional LFA under the optimized conditions. The visual limit of detection (LOD) of the amplified method for qualitative detection lead ions was 2 ng/mL and the LOD for semi-quantitative detection could go down to 0.19 ng/mL using a scanning reader. The method suffered from no interference from other metal ions and could be used to detect trace lead ions in drinking water without sample enrichment. The recovery of the test samples ranged from 96% to 103%. As the detection method could be accomplished within 15 min, this method could be used as a potential tool for preliminary monitoring of lead contamination in drinking water. Source

Wang S.,Fuzhou University | Ye X.,Fuzhou University | Chen J.,Jiangnan University | Rao P.,Fuzhou University
Food Research International | Year: 2012

A novel chitinase with antifungal activity was isolated from fava bean (Vicia faba) seeds. The protein exhibited a molecular mass of 21.5. kDa in reduced condition while 25.5. kDa in oxidized condition on SDS-PAGE, indicating that there are disulfide bonds inside the molecule. Its N-terminal amino acid sequence was determined to be D-D-V-G-S-V-I-S-A-S-L-F-E-Q-L-L-K-H, showing homologous to those of chitinase and chitinase precursors from leguminous plants. The optimum pH and the optimum temperature for activity toward N-acetyl-d-glucosamine were 5.4 and 50°C, respectively. The pI was determined to be 8.7 by isoelectric focusing electrophoresis. The chitinase was thermostable up to 58°C in both enzymatic reaction and antifungal activity. It showed chitin-binding activity, suggesting that the catalytic domain is involved in the binding of chitinase to a certain extent. In addition, it exerted potent antifungal action toward a variety of fungal species including Pythium aphanidermatum, Fusarium solani, Physalospora piricola, Alternaria alternate, Botrytis cinerea, and Fusarium oxysporum f. sp. melonis. The present findings demonstrated a novel chitinase with disulfide bonds inside the molecule and show antifungal significance in agriculture. © 2011 Elsevier Ltd. Source

Guo X.,Jiangnan University | Xiong Y.L.,University of Kentucky
LWT - Food Science and Technology | Year: 2013

Maillard-type functional complexes were produced by reacting buckwheat protein (BWP) with five different saccharides (xylose, fructose, glucose, dextran, and maltodextrin) in aqueous solutions at 60 °C, pH 6.5. Xylose was the most reactive sugar with BWP as evidenced by losses of free amines (22.4% in 12 h) and strong difference UV absorption at 310 nm. The covalent attachments of different sugars/polysaccharides to BWP were confirmed by SDS-PAGE with both protein and carbohydrate staining. Conjugation did not significantly alter the solubility of BWP, but the BWP-dextran complex had superior emulsifying activity over control BWP (P < 0.05). Emulsions prepared with the complexes were substantially more stable (P < 0.05) than emulsion prepared with control BWP in the order of: dextran > maltodextrin > xylose > glucose > fructose > control. The conjugation also improved thermal stability of BWP. © 2012 Elsevier Ltd. Source

Li Q.,Jiangnan University | Loke A.Y.,Hong Kong Polytechnic University
Psycho-Oncology | Year: 2014

Objective With the research focus on family caregiving shifting from the individual to the dyadic level, it is suggested that the caregiver-patient dyad as a unit be the focus and direction of caregiving interventions for families coping with cancer. The objectives in conducting this review were to explore the existing interventions for spousal couples coping with cancer in terms of type of intervention, contents, approach, and outcome measurements; and to identify directions for the development of interventions. Methods A systematic search of four databases was conducted to identify articles published in English or Chinese from the launch of the databases to March 2013. Studies were located using an electronic search, a manual search, and an author search. Results A total of 17 articles were identified and included in this review. These interventions focused mainly on patient caregiving and caregiver self care, and usually lasted for 6 weeks using a face-to-face group mode, with follow-up at around 3 months. The outcome measures can be grouped into three main dimensions: dyadic appraisal, dyadic coping, and dyadic adjustments. Positive outcomes were reported for these interventions, including improvements in communication, dyadic coping, the quality of life of both the patients and their partners, psychosocial distress, sexual functioning, and marital satisfaction. Conclusions These findings highlighted the positive outcomes of couple-based interventions that focus on couples coping with cancer. Future studies on couple-based interventions should be conducted in different cultures, such as in Asian countries. Collaboration between researchers and clinicians is crucial to ensure the development of effective and accessible supportive interventions targeting couples coping with cancer. Copyright © 2014 John Wiley & Sons, Ltd. Source

This paper provides an overview of Desulfovibrio (DSV) incidence and its effect on bacterial diversity in human gastrointestinal tract of four groups: ulcerative colitis (UC), colorectal cancer (CRC), polypus (PP) and the healthy control (H). Real time fluorescence quantitative PCR (RT-PCR) assays were used to enumerate DSV in gastrointestinal tract of 58 subjects. Diversity of gut microbiota was analyzed by PCR-Denaturing Gradient Gel Electrophoresis (PCR-DGGE) and 16S rRNA V3 sequencing. RT-PCR detected DSV in all samples. Significantly increased numbers of DSV were observed for UC and PP groups compared with CRC and H groups. No significant difference was observed for CRC and H groups with gene copy numbers of DSV. Alterations of DSV and gut microbiota were observed in disease groups. We found that quantity and diversity of DSV are significantly increased in UC and PP compared to controls. The increased numbers of DSV in disease groups suggests a possible harmful role. Source

Li C.,Jiangnan University | Bovik A.C.,University of Texas at Austin
Signal Processing: Image Communication | Year: 2010

The assessment of image quality is important in numerous image processing applications. Two prominent examples, the Structural Similarity Image (SSIM) index and Multi-scale Structural Similarity (MS-SSIM) operate under the assumption that human visual perception is highly adapted for extracting structural information from a scene. Results in large human studies have shown that these quality indices perform very well relative to other methods. However, the performance of SSIM and other Image Quality Assessment (IQA) algorithms are less effective when used to rate blurred and noisy images. We address this defect by considering a four-component image model that classifies image local regions according to edge and smoothness properties. In our approach, SSIM scores are weighted by region type, leading to modified versions of (G-)SSIM and MS-(G-)SSIM, called four-component (G-)SSIM (4-(G-)SSIM) and four-component MS-(G-)SSIM (4-MS-(G-)SSIM). Our experimental results show that our new approach provides results that are highly consistent with human subjective judgment of the quality of blurred and noisy images, and also deliver better overall performance than (G-)SSIM and MS-(G-)SSIM on the LIVE Image Quality Assessment Database. © 2010 Elsevier B.V. Source

Wang D.,Qingdao University | Ding F.,Jiangnan University | Chu Y.,Liaocheng Vocational and Technical College
Information Sciences | Year: 2013

This paper concerns parameter identification of Hammerstein output error moving average systems with a two-segment piecewise nonlinearity. By combining the key-term separation principle and the data filtering technique, we transfer the Hammerstein model into two regression identification models, and present a data filtering based recursive least squares method to estimate the parameters of these two identification models. The proposed algorithm achieves a higher computational efficiency than the standard approach by using covariance matrices of smaller dimensions from the two identification models instead of one identification model in the standard approach. © 2012 Elsevier Inc. All rights reserved. Source

Zhao J.,Jiangnan University
Wei sheng wu xue bao = Acta microbiologica Sinica | Year: 2013

In this study, we constructed a recombinant Escherichia coli (E. coli) strain to produce hemolytic phospholipase C and optimized the fermentation conditions. We screened a high phospholipase C activity strain, Pseudomonas aeruginosa (P. aeruginosa) 41, through yolk borax plate method, and cloned the hemolytic phospholipase C gene (plcH) from it. The plcH was inserted into pET-28a (+) and then obtained the recombinant expression plasmid (pET28a-plcH). We selected the correct recombinant plasmid and transformed it into E. coli BL21 (DE3). Furthermore, we determined the PLC activity and hemolytic activity in positive transformants on yolk borax plate and columbia blood agar plate. Finally, we optimized the fermentation conditions. We successfully constructed a recombinant E. coli strain (E. coli BL21 (DE3)/pET28a-plcH) that showed significant phospholipase C activity. Moreover, hemolytic phospholipase C of the recombinant strain showed strong hemolytic activity. The enzyme activity of phospholipase C was 722.9 +/- 0.47 U/mL with 5% of inoculation amount, 200 r/min for 4 hours at temperature of 37, induced by 0.9 mmol/L IPTG for 14 hours. We constructed a recombinant E. coli strain with high hemolytic phospholipase C activity under optimized fermentation conditions. It is the first time in domestic to successfully clone and express phospholipase C gene from P. aeruginosa in E. coli. These research results are helpful to advance the industrialization and application of phospholipase C. Source

Zhang Q.,Jiangnan University
Wei sheng wu xue bao = Acta microbiologica Sinica | Year: 2013

The gene of ice nucleation protein (INP), an outer membrane of Pseudomonas syringae was tested to display foreign proteins on the surface of Lactococcus lactis. Plasmids pHZ101 and pHZ102 were constructed using gfp (Green Fluorescence Protein) as the reporter gene and N-terminal and NC-terminal of inp as the anchoring units. Plasmids pHZ101 and pHZ102 were subsequently transformed into Escherichia coli JM109 and Lactococcus lactis MG1363. Fluorescence microscope shows that green fluorescence was observed in both recombinant E. coli and L. lactis strains. Western blot indicated that GFP was expressed in both recombinant E. coli and L. lactis strains. INPN-GFP was mostly trapped in cytoplastic fraction while INPNC-GFP was mainly targeted on the cell membrane of L. lactis. The results suggest a new way to construct cell surface display system of lactic acid bacteria by using ice nucleation protein. Source

Yan W.,Jiangnan University
Wei sheng wu xue bao = Acta microbiologica Sinica | Year: 2013

To increase extracellular productivityof pullulanase, pullulanase gene from Bacillus naganoensis JNB-1 was expressed in recombinant Escherichia coli, followed by optimizing induction conditions and applying chemical additives. We amplified pullulanase gene pul from B. naganoensis genome by PCR and constructed recombinant E. coli BL21/pET-20b-pul. Optimal induction conditions and additive parameters of glycine and Na+ were determined by measuring the extracellular pullulanase activity. Pullulanase was expressed in E. coli with the molecular weight of 119 kDa. Under optimal induction conditions, i. e. induction was initiated with 0.4 mmol/L isopropyl beta-D-1-Thiogalactopyranoside (IPTG) at 20 degrees C when OD600 of bacteria culture reached 1.2, total pullulanase activity including intracellular and extracellular enzyme reached 10.8 U/mL. Addition of glycine and Na+ enhanced the secretion of pullulanase. With the supplementation of 0.08 mol/L glycine and 0.2 mol/L Na+, extracellular pullulanase activity was increased up to 8.1 U/mL, 10.3 times of that without additives. A promising resource of pullulanase was achieved by construction of recombinant E. coli for industrial production of pullulanase, and additionally the efficient regulation method with chemical additives was developed for pullulanase secretion, which would also be useful for high-level extracellular production of recombinant enzymes. Source

Wang D.-Q.,Qingdao University | Ding F.,Jiangnan University | Zhu D.-Q.,Shanghai Maritime University
International Journal of Control, Automation and Systems | Year: 2013

This paper focuses on the identification problem of multivariable controlled autoregressive autoregressive (CARAR-like) systems. The corresponding identification model contains a parameter vector and a parameter matrix, and thus the conventional least squares methods cannot be applied to directly estimate the parameters of the systems. By using the hierarchical identification principle, this paper presents a hierarchical generalized least squares algorithm and a filtering based hierarchical least squares algorithm for the multivariable CARAR-like systems. The simulation results show that the two hierarchical least squares algorithms are effective. © 2013 Institute of Control, Robotics and Systems and The Korean Institute of Electrical Engineers and Springer-Verlag Berlin Heidelberg. Source

Liu L.,Jiangnan University
Chinese Physics Letters | Year: 2014

The reduced matrix elements of Ê2 operator for 10Be low-lying states are evaluated with the no-core Monte Carlo shell model, which has been used to investigate the structure of light nuclei in an ab initio sense recently. The MCSM calculation converges within 20 MCSM dimensions. These MCSM results show good agreement with new experimental data and other ab initio calculations. The reduced matrix elements are investigated in terms of single-particle orbits contribution. It is found that the transition among p-shell orbits is dominant. The triaxial deformation of 10Be, as well as its mirror nucleus 10C, is also discussed. Meanwhile, the importance of p-shell orbits to the triaxiality is addressed. © 2014 Chinese Physical Society and IOP Publishing Ltd. Source

Zhang B.,Jiangnan University
Wei sheng wu xue bao = Acta microbiologica Sinica | Year: 2013

A gene encoding solvent-resistant glucose dehydrogenase was cloned from Bacillus sp. YX-1 and expressed in Escherichia coli. The recombinant enzyme was then characterized. The glucose dehydrogenase gene was amplified from Bacillus sp. YX-1 genome according to its conserved sequences in Bacillus sp. The recombinant enzyme was over-expressed in E. coli and purified by HisTrap HP affinity chromatography. The purified enzyme were characterized. The glucose dehydrogenase gene contains an open reading frame of 786 bp encoding 261 amino acids. The maximum activity was observed at 45 degrees C and pH 8.0. The recombinant enzyme was highly resistant to several organic solvents. More than 90% of the activity was maintained when the enzyme was incubated in 50% cyclohexane, octane, decane at home temperature for 1 h. In addition, the enzyme displayed broad substrate spectrum and has catalytic activity for several sugars to afford reduced coenzymes. It exhibits similar capability to regenerate either NADH or NADPH with specific activity of 8.37 U/mg and 8.62 U/mg for NAD+ and NADP+. The organic solvent-tolerant glucose dehydrogenase was explored successfully on the basis of bioinformatics analysis. The work supplied a new biocatalyst for the cofactor-regeneration during the reaction in organic phases catalyzed by oxidoreductases. Source

Kuang H.,Jiangnan University
Critical reviews in food science and nutrition | Year: 2012

It is essential that the novel biomarkers discovered by means of advanced detection tools based on metabonomics could be used for long-term monitoring in food safety. By summarizing the common biomarkers discovery flowsheet based on metabonomics, this review evaluates the possible application of metabonomics in new biomarker discovery, especially in relation to food safety issues. Metabonomics have the advantages of decreasing detection limits and constant monitoring. Although metabonomics is still in the developmental stage, we believe that, based on its properties, such as noninvasiveness, sensitivity, and persistence, together with rigorous experimental designs, new and novel technologies, as well as increasingly accurate chemometrics and a relational database, metabonomics can demonstrate extensive application in food safety in the postgenome period. Source

Yang D.,Shanxi Normal University | Ding Y.,Jiangnan University | Wu H.,Shanxi Normal University | Zheng W.,Shanxi Normal University
Inorganic Chemistry | Year: 2011

Several of alkaline-earth-metal complexes [(η2: η2:μ(N):μ(N)-Li)+]2[{η 2-Me2Si(DippN)2}2Mg]2- (4), [η2(N,N)-Me2Si(DippN)2Ca•3THF] (5), [η2(N,N)-Me2Si(DippN)2Sr•THF] (6), and [η2(N,N)-Me2Si(DippN)2Ba• 4THF] (7) of a bulky bis(amido)silane ligand were readily prepared by the metathesis reaction of alkali-metal bis(amido)silane [Me2Si(DippNLi) 2] (Dipp = 2,6-i-Pr2C6H3) and alkaline-earth-metal halides MX2 (M = Mg, X = Br; M = Ca, Sr, Ba, X = I). Alternatively, compounds 5-7 were synthesized either by transamination of M[N(SiMe3)2]2•2THF (M = Ca, Sr, Ba) and [Me2Si(DippNH)2] or by transmetalation of Sn[N(SiMe 3)2]2, [Me2Si(DippNH)2], and metallic calcium, strontium, and barium in situ. The metathesis reaction of dilithium bis(amido)silane [Me2Si(DippNLi)2] and magnesium bromide in the presence of oxygen afforded, however, an unusual lithium oxo polyhedral complex {[(DippN(Me2Si)2)(μ-O)(Me 2Si)]2(μ-Br)2[(μ3-Li) •THF]4(μ4-O)4(μ3-Li) 2} (8) with a square-basket-shaped core Li6Br 2O4 bearing a bis(aminolato)silane ligand. All complexes were characterized using 1H, 13C, and 7Li NMR and IR spectroscopy, in addition to X-ray crystallography. © 2011 American Chemical Society. Source

Chen Y.,Jiangnan University | Ono T.,Iwate University
Food Hydrocolloids | Year: 2014

Systematically characterizing soymilk protein is important for understanding the formation of soymilk-related products and may be beneficial for enhancing the qualities of these products. Field emission scanning electron microscopy showed that soymilk protein could be divided into three categories: large (40-258nm) and small (20-40nm) stable protein particles and <20nm soluble proteins. Regardless of soybean variety, the large protein particles contained lipoxygenase, γ-conglycinin, lectin, and Kunitz trypsin inhibitor as well as glycinin and β-conglycinin. These large protein particles were comprised of 40-nm protein aggregates (around 40nm) formed by heat-dissociated soybean protein subunits. In addition, the small stable protein particles, which accounted for about 10% of soymilk protein, increased with β subunits of β-conglycinin while the soluble proteins (<20nm) existed as monomers and oligomers of α', α and acidic polypeptides. © 2014 Elsevier Ltd. Source

Yuan Y.-H.,Jiangnan University | Sun Q.-S.,Nanjing University of Science and Technology
Pattern Recognition | Year: 2014

Multiset canonical correlation analysis (MCCA) is a powerful technique for analyzing linear correlations among multiple representation data. However, it usually fails to discover the intrinsic geometrical and discriminating structure of multiple data spaces in real-world applications. In this paper, we thus propose a novel algorithm, called graph regularized multiset canonical correlations (GrMCCs), which explicitly considers both discriminative and intrinsic geometrical structure in multiple representation data. GrMCC not only maximizes between-set cumulative correlations, but also minimizes local intraclass scatter and simultaneously maximizes local interclass separability by using the nearest neighbor graphs on within-set data. Thus, it can leverage the power of both MCCA and discriminative graph Laplacian regularization. Extensive experimental results on the AR, CMU PIE, Yale-B, AT&T, and ETH-80 datasets show that GrMCC has more discriminating power and can provide encouraging recognition results in contrast with the state-of-the-art algorithms. © 2014 Elsevier Ltd. Source

Liu L.,Jiangnan University
Information Sciences | Year: 2011

The aim of this paper is to study the existences of Bosbach states and Riečan states on finite monoidal t-norm based algebras (MTL-algebras for short). We give some examples to show that there exist MTL-algebras having no Bosbach states and Riečan states. The conditions under which MTL-algebras have Bosbach states and Riečan states are investigated, respectively. We prove that Riečan states on MTL-algebras are reduced to states on IMTL-algebras. Furthermore, the necessary and sufficient conditions for finite linearly ordered locally finite MTL-algebras and peculiar MTL-algebras having Bosbach states and Riečan states are obtained, respectively. In addition, the notions of pseudo-quasi-equivalent and a subalgebra under pseudo-quasi-equivalent are proposed and some of their properties are investigated. © 2010 Elsevier Inc. All rights reserved. Source

Wang Z.-W.,University of Jinan | E Y.P.,University of Jinan | E Y.P.,Jiangnan University
Materials and Design | Year: 2010

A mathematical model was developed to describe the relationship between the energy absorption properties of paper honeycombs and ambient humidity, as well as the structural parameters thereof. The model is a piecewise function modelling the energy absorption of four deformation stages of paper honeycomb (linear-elastic stage, yield stage, plateau stage and densification stage) separately. Function of each stage is a simple formula relating the energy absorption capacity to the thickness-to-length ratio of honeycomb cell, the mechanical property of a cell-wall material tested under a controlled atmosphere [23°C and 50% relative humidity (RH)] and the RH. Energy absorption curves were thereby obtained for paper honeycombs with a wide range of thickness-to-length ratios in arbitrary humidity environments. The created model was then verified by comparing the predicted energy absorption curves with the experimental ones. A good accordance between the predictions and the observations was achieved, indicating that the energy absorption models developed here could be used to practical application for the designing optimisation and material selection of paper honeycombs. © 2010 Elsevier Ltd. Source

Zhang G.,Jiangnan University | Zhang G.,Purdue University | Hamaker B.R.,Purdue University
Cereal Chemistry | Year: 2010

Providing balanced energy and nutrients for microbiota growth is essential for the maintenance of the colon ecosystem, and dietary fiber (DF) fermentation, particularly butyrogenic fermentation, augments colon health. Cereal DF, which are the complex carbohydrates of cereal grains that escape small intestine digestion and function either as substrate for colonic fermentation or as bulking material, are a dietary measure to mitigate the occurrence of certain colonic diseases, and perhaps to some degree act as therapeutic agents. In developed Western countries, as well as in many developing countries, colon cancer is one of the major causes for premature death and disability, andinflammatory bowel disease and other colonic disorders have become serious health issues. The function of DF in colon health is mediated through its physicochemical properties (e.g., water-holding for laxative effect) or effect on colon microbiota (e.g., leading to immune regulation), as well as through colonic fermentation products, principally the short chain fatty acids (SCFA) of acetate, propionate, and butyrate. Due to the chemical diversity and complexity of DF and because not all DF materials function equally, new developments in DF fermentation behavior (pattern and end product profile) will be reviewed from a structure-function viewpoint. The effect of cereal DF, mainly nonstarch cereal olysaccharides and resistant starch on colonic microbiota, fermentation products of SCFA, microbiota modulation, as well as on colon health will be summarized. © 2010 AACC International, Inc. Source

Liu S.,Jiangnan University | Liu S.,Wuhan University | Zhou J.,Wuhan University | Zhang L.,Wuhan University
Cellulose | Year: 2011

Nanocomposite cellulose films with obvious magnetic anisotropy have been prepared by in situ synthesis of plate-like Fe2O3 nanoparticles in the cellulose matrix. The influence of the concentrations of FeCl2 and FeCl3 solutions on the morphology and particle size of the synthesized Fe2O3 nanoparticles as well as on the properties of the composite films has been investigated. The Fe2O3 nanoparticles synthesized in the cellulose matrix was γ-Fe2O3, and its morphology was plate-like with size about 48 nm and thickness about 9 nm, which was totally different from those reported works. The concentration of FeCl2 and FeCl3 solution has little influence on the particle size and morphology of the Fe2O3 nanoparticles, while the content of Fe2O3 nanoparticles increased with the increase of the concentration of the precursor solution, indicating that porous structured cellulose matrix could modulate the growth of inorganic nanoparticles. The unique morphology of the Fe2O3 nanoparticles endowed the composite films with obvious magnetic anisotropy, which would expand the applications of the cellulose based nanomaterials. © 2011 Springer Science+Business Media B.V. Source

Jiangnan University | Date: 2014-04-12

The present invention provides a novel leech HAase and a method of producing low-molecular-weight HA oligosaccharides using the leech HAase. This invention successfully cloned the first leech HAase gene and provides a method for high-level expression of the leech HAase gene. By controlling the incubation condition, different HA oligosaccharides, particularly HA4, HA6, HA8 and HA10, can be selectively generated using the leech HAase. The large-scale expression of the leech HAase and the enzymatic production of specific HA oligosaccharides are not only useful for the cosmetic, healthcare and the medical industries but also can be a great help to polysaccharides chemical synthesis and cancer research.

The present invention provides novel fatty acid desaturases genes used for synthesis of polyunsaturated fatty acids, especially 3 desaturases (FADS15). The present invention also provides nucleic acid sequence coding the above-described desaturases, expression vector of the above-described desaturases and recombinant microorganism expressing above-described desaturases.

Dithienylpyrrole compounds, compositions containing dithienylpyrrole polymers, and methods for making the compounds and compositions are disclosed herein. The compositions containing dithienylpyrrole polymers, can for example, be used as conducting polymers in biosensors for detecting analytes in a sample.

Jiangnan University and Rutgers University | Date: 2015-03-02

Stereospecific carbonyl reductases SCR1, SCR2, and SCR3 are described herein as are nucleotide sequences that encode these reductases. These stereospecific carbonyl reductases have anti-Prelog selectivity and have specificities that are useful for fine biochemical synthesis.

Jiangnan University | Date: 2011-09-09

Disclosed are methods for increasing microbial catalase production. 1-10 g/L sodium hexametaphosphate was added to the culture medium between 30-40 hours of fermentation to inhibit proteinase activity and increase the production of catalase. This simple modification of fermentation procedure can result in up to 45% increase of the production of catalase.

Jiangnan University | Date: 2011-02-28

The present invention relates to the field of bioengineering and discloses a cutinase-producing genetically engineered microorganism and use thereof. Recombinant plasmid Tfu_0883-hlyAs/pET20b(+) was constructed and transformed into

Jiangnan University | Date: 2012-12-28

An graphene composites have reduced graphene oxide and a layered double-hydroxide distributed on the reduced graphene oxide. The composites may also include nanopores formed within the reduced graphene oxide and micropores that may be formed by the reduced graphene oxide. The composites may exhibit superior electrical and/or absorbent properties. Capacitor devices and electrodes containing the composites are also disclosed, as well as methods and systems configured to make and use the composites.