Yu A.-L.,Huaiyin Teachers College
2nd International Conference on Information Science and Engineering, ICISE2010 - Proceedings | Year: 2010
A kind of new dynamic compensation method is presented based on improved genetic algorithm (IGA) and wavelet neural networks (WNN) and the principle of algorithm is introduced for a new type robot wrist force sensor. In this method, the dynamic compensation model of the wrist force sensor can be set up according to measurement data of the dynamic calibration, where the structure and parameters of wavelet neural networks of the dynamic compensation model are optimized by genetic algorithm. The results show that the proposed new dynamic compensation method can overcome the shortcomings of BP algorithm, such as easy convergence to the local minimum points, and the network complexity, the convergence and the generalization ability are good compromised and the training speed and precision of compensation model are increased. © 2010 IEEE.
Xu M.,Huaiyin Teachers College
Applied Mechanics and Materials | Year: 2013
In this paper we investigate the cycle base structure of 2-connected graphs on the projective plane and show the minimum cycle bases of 2-connected outer planar graph G in the case of ew (G) ≥5. Then give a proof about the one-one property between the minimum cycle bases and the shortest no contractible cycles. © (2013) Trans Tech Publications, Switzerland.
Li D.-P.,Soochow University of China |
Pan X.-Q.,Soochow University of China |
An L.-T.,Huaiyin Teachers College |
Zou J.-P.,Soochow University of China |
And 2 more authors.
Journal of Organic Chemistry | Year: 2014
A diphenylphosphinoyl radical-initiated sequential reaction of 1,4-diaryl-1-butynes and analogues is developed for the synthesis of 2-phosphinoylated 3,4-dihydronaphathalenes and related compounds. © 2014 American Chemical Society.
Xue Q.-Y.,Nanjing Agricultural University |
Xue Q.-Y.,Julius Kuhn Institute |
Ding G.-C.,Julius Kuhn Institute |
Li S.-M.,Nanjing Agricultural University |
And 5 more authors.
Applied Microbiology and Biotechnology | Year: 2013
Bacterial wilt caused by Ralstonia solanacearum is a serious threat for agricultural production in China. Eight soil bacterial isolates with activity against R. solanacearum TM15 (biovar 3) were tested in this study for their in vitro activity towards ten genetically diverse R. solanacearum isolates from China. The results indicated that each antagonist showed remarkable differences in its ability to in vitro antagonize the ten different R. solanacearum strains. Strain XY21 (based on 16S rRNA gene sequencing affiliated to Serratia) was selected for further studies based on its in vitro antagonistic activity and its excellent rhizocompetence on tomato plants. Under greenhouse conditions XY21 mediated biocontrol of tomato wilt caused by seven different R. solanacearum strains ranged from 19 to 70 %. The establishment of XY21 and its effects on the bacterial community in the tomato rhizosphere were monitored by denaturing gradient gel electrophoresis of 16S rRNA gene fragments PCR-amplified from total community DNA. A positive correlation of the in vitro antagonistic activities of XY21 and the actual biocontrol efficacies towards seven genetically different R. solanacearum strains was found and further confirmed by the efficacy of XY21 in controlling bacterial wilt under field conditions. © 2012 Springer-Verlag.
Li H.,Yanbian University |
Li B.,Jilin University |
Jin L.-Y.,Yanbian University |
Kan Y.,Huaiyin Teachers College |
Yin B.,Yanbian University
Tetrahedron | Year: 2011
A colorimetric and fluorescent cyanide probe based on 7- (trifluoroacetamino)coumarin has been prepared. This structurally simple probe displays rapid response and high selectivity for cyanide over other common anions in the aqueous solution. The sensing of cyanide was performed via the nucleophilic attack of cyanide anion to carbonyl of the probe with a 1:1 binding stoichiometry, which could be confirmed by Job's plot, 1H NMR, and MS studies. DFT/TDDFT calculations support that the fluorescence enhancement of the probe is mainly due to the ICT process improvement. The detection limit of the fluorescent assay for cyanide is as low as 0.3 μM in a rapid response of less than 30 s. Thus, the present probe should be applicable as a practical system for the monitoring of cyanide concentrations in aqueous samples. © 2011 Elsevier Ltd. All rights reserved.
Hu M.,Huaiyin Teachers College
Proceedings of the International Conference on E-Business and E-Government, ICEE 2010 | Year: 2010
The paper builds the subjective game model of emergency in supply chain system, and then analyzes the emergency decision-making when supplier and retailer are facing with the emergency attack. If retailer increases the wholesale and retail price differentials, it's belonging to the high-technological product with higher price and lower quantity available, or supplier possesses the abundant additional product ability, the supplier couldn't decrease the quantity available. Once the supplier has to reduce the quantity available, the retailer should rapidly start up the emergency decision-making, where it seeks for the potential supplier to reinforce the quantity available. If the quantity available coming from potential supplier is greater than the reigning supplier in the crisis state, the potential supplier and retailer will get the more marketing profit. © 2010 IEEE.
Wang B.,Yancheng Institute of Technology |
Wang X.,Huaiyin Teachers College |
Zhao J.,Key Laboratory of Materials Modification by Laser |
Zhao J.,Dalian University of Technology
Journal of Physical Chemistry C | Year: 2010
Very recently, mass spectroscopy of ZnO clusters revealed a hitherto unknown (ZnO)60 magic-number cluster with exceptional stability. Using first-principles approaches, we searched the most stable structures of medium-size (ZnO)n clusters by considering several possible structural motifs. Instead of the previously nominated nested cage for (ZnO)60, we found a sodalite structure via coalescence of (ZnO) 12 cages, which was predicted to be a metastable phase in bulk ZnO solid. Due to the smaller influence of surface reconstruction, this sodalite motif is very competitive for larger (ZnO)n clusters up to n = 96. © 2010 American Chemical Society.
Zhi X.,Shanghai Medical College |
Wang Y.,Jilin University |
Zhou X.,Huaiyin Teachers College |
Yu J.,Shanghai Medical College |
And 5 more authors.
Cancer Science | Year: 2010
Ecto-5'-nucleotidase (CD73), a cell surface protein that hydrolyzes extracellular AMP into adenosine and phosphate, is overexpressed in many solid tumors. In this study, we tested the hypothesis that increased CD73 may promote tumor progression by examining the effect of CD73 suppression via RNA interference and CD73 overexpression on tumor growth in vivo and in vitro. Using digitized whole-body images, plate clone forming assay and TUNEL assay in frozen tissue sections, we found that the cell growth rate was significantly lower in vivo and in vitro after CD73 suppression and late apoptosis was much higher in xenograft tumors developed from the CD73-siRNA transfected MB-MDA-231 clone (P1). By flow cytometry, the P1 cell cycle was arrested in the G0/G1 phase. Moreover, Bcl-2 was downregulated, while Bax and caspase-3 were upregulated with CD73 suppression. CD73 inhibitor α,β-methylene adenosine-5'-disphosphate (APCP) functioned similarly with RNAi-mediated CD73 suppression. In addition, in transfected MCF-7 cells, we found that CD73 overexpression increased cell viability and promoted cell cycle progression, depending on its enzyme activity. More intriguingly, CD73 overexpression in MCF-7 breast cancer cells produces a tumorigenic phenotype. We conclude that CD73 plays an important role in breast cancer growth by affecting cell cycle progression and apoptosis. (Cancer Sci 2010; 101: 2561-2569) © 2010 Japanese Cancer Association.
Zhao P.,Qingdao University of Science and Technology |
Zhao P.,Huaiyin Teachers College |
Zhou S.,Qingdao University of Science and Technology |
Guo Z.,Qingdao University of Science and Technology |
Zhu Y.,Qingdao University of Science and Technology
Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy | Year: 2012
A 2-pyrazoline derivation of 1-phenyl-3-(4-methylphenyl)-5-(3,4-dimethyl phenyl)-2-pyrazoline has been characterized by X-ray single crystal diffraction, UV-vis and fluorescence spectroscopy. For the title compound, density functional theory (DFT) calculations of the structure and natural population atomic charge analysis have been performed at B3LYP/6-311G** level of theory. By using TD-DFT method, electron spectra of the title compound have been predicted, which suggest the B3LYP/6-311G** method can approximately simulate the electron spectra for the system presented here. Comparative studies on the title compound with 1-phenyl-3-(4-methylphenyl)-5- phenyl-2-pyrazoline indicate that introducing electron-donating groups in 5-phenyl ring of pyrazoline ring influences the peak location and intensity in electronic and fluorescence spectra. © 2012 Elsevier B.V. All rights reserved.
Zheng N.,Yanbian University |
Li B.,Jilin University |
Ma C.,Yanbian University |
Chen T.,Yanbian University |
And 2 more authors.
Tetrahedron | Year: 2012
To study the electronic interactions in donor-acceptor (D-A) conjugates as a precursor of optoelectronic materials, a series monopyridazine-annulated tetrathiafulvalenes and a bispyridazine-annulated tetrathiafluvalene were synthesized by a condensation reaction of 2,3-dimethoxycarbonyl-6,7- dibutylthiotetrathiafulvalene or/and 2,3,6,7- tetramethoxycarbonyltetrathiafulvalene with hydrazine hydrate and structurally characterized by conventional chemical and physical methods. Their electronic properties have been studied experimentally by the combination of electrochemistry and UV-vis spectroscopy. All of monopyridazine- tetrathiafulvalene conjugates 7-13 show intramolecular charge transfer interaction in ground states, which is rationalized on the basis of density functional theory. Their HOMO energy levels and E g opt values were estimated to be -4.88 to -5.07 eV from cyclic voltammetry and 2.43-2.79 eV from the absorption spectra, respectively. The X-ray crystallographic analyses of the pyridazine-tetrathiafulvalene conjugates 7, 11-13 are also reported. © 2011 Elsevier Ltd. All rights reserved.