Shandong Institute for Product Quality Inspection

Jinan, China

Shandong Institute for Product Quality Inspection

Jinan, China
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Shang Z.X.,Shandong Institute for Product Quality Inspection | Wang Y.,Shandong External Science and Technology Exchange Center | Liu X.,Chengdu University of Technology
Electric, Electronic and Control Engineering - Proceedings of the International Conference on Electric, Electronic and Control Engineering, ICEECE 2015 | Year: 2015

Considering the high risk, fuzziness and scientific quantization deficiency of investment port-folio, to establish a scientific and easy-to-use evaluation system is the main approach to solve the issues. A fuzzy comprehensive evaluation method is introduced in this paper to quantize each aspect of the investment portfolio and unify the dimensions. It combines qualitative factors as well as quantitative factors and can make equal, fair and effective assessment for the investment portfolio project by utilizing all information. © 2015 Taylor & Francis Group, London.

Sun Y.-L.,Beijing Institute of Technology | Liu L.,Beijing Institute of Technology | Liu L.,Shandong Institute for Product Quality Inspection | Ren H.,Beijing Institute of Technology | Jiao Q.-J.,Beijing Institute of Technology
Hanneng Cailiao/Chinese Journal of Energetic Materials | Year: 2017

In order to investigate the effect of fine zirconium powder with diameter of 1 μm on the reaction mechanism of KClO4 during thermal decomposition, TG/DTG and X-ray photoelectron spectroscopy (XPS) analysis were applied to determine the thermal behavior of KClO4 and Zr/KClO4 (50∶50). The result of XPS shows that the addition of KClO4 promoted the reversible chemical reaction equilibrium of KClO4. Linear regression was used to determine the kinetic triplet. The calculation result shows that the activation energy declined while the pre-exponential factor increased and the mechanism function shifted from G(α)=[-ln(1-α)]3/4 to G(α)=-ln(1-α), the critical temperature of thermal explosion declined from 587.7℃ to 516.9℃ for the first decomposition stage. As for the second one, the activation energy increased while the pre-exponential factor hardly changed and the mechanism function remains G(α)=-ln(1-α). Thus it can be inferred that zirconium accelerated the first thermal decomposition step of KClO4, increased the number of active sites and made it easier to happen, but became inert substance since it was oxidized to ZrO2 and that was the reason of the increment of the activation energy and the invariant of the mechanism function. © 2017, Editorial Board of Chinese Journal of Energetic Materials. All right reserved.

Zhou Y.,Shandong University | Sun X.,Shandong Institute for Product Quality Inspection | Zhang X.,Teaching and Research Group | Guo Y.,Shandong University | Jia Y.,Shandong University
Gongneng Cailiao/Journal of Functional Materials | Year: 2016

Adopting the nonwoven technology of jute fiber and 4080 polyester fiber with skin-core structure, green and biodegradable composite structures were manufactured through thermal bonding presetting and then hot pressing technique which was suitable for continuous industrial production. The material formula was optimized by the mechanical performance test and micro-morphology characterization after considering such factors as material source and cost. The effect of molding temperature, pressure and holding time on the tensile properties of jute fiber composites was studied by the controlling variable method. The acoustic absorption property of the composite was studied by transfer function method and the result indicated that this composite had obvious advantages in noise reduction when applied as car interior parts. Finally, the sound absorption mechanism of jute/4080 composite was discussed. © 2016, Chongqing Functional Materials Periodical Press Co. Ltd. All right reserved.

Wang H.,Shandong University | Liu J.,Shandong University | Wang J.,Shandong Institute for Product Quality Inspection | Yu W.,Shandong University | And 3 more authors.
Desalination and Water Treatment | Year: 2017

The microbial rules of nitrogen removal in wetlands with high salinity were unclear, which was important in the study of saline wastewater purification. In this study, microbial quantity, diversity and physicochemical factors related to nitrogen cycling processes in a saline natural wetland were conducted. Results of real-time quantitative polymerase chain reaction (qPCR) revealed that relative abundance of anammox 16S rRNA gene (anammox for short) took the majority of the four tested nitrogen cycle genes (amoA, Nitrospira 16S rRNA gene or nobL for short, nirS). The abundances of anammox were coupled well with salinity, while the aerobic bacteria were inhibited. Deep 16S rRNA gene analysis of bacterial and archaea communities from soils showed that there were no significant differences in bacteria community structure between inland and inshore soils. However, the archaea community analysis indicated interesting results that Euryarchaeota was dominant in inshore soils, while Woesearchaeota took up over half of the inland soils. Furthermore, the subdivision halobacteria of Euryarchaeota inshore and Woesearchaeota Incertae Sedis AR15-18 inland were the most potential candidates to remove the nitrogen in high-salt areas. These findings provided a preliminary conception for the design of constructed wetlands in treating high saline wastewater. © 2017 Desalination Publications. All rights reserved.

Liu J.,Shandong University | Wang J.,Shandong University | Wang J.,Shandong Institute for Product Quality Inspection | Zhao C.,Shandong University | And 3 more authors.
Applied Microbiology and Biotechnology | Year: 2016

Triclosan (TCS) is widely used in consumer products as an antimicrobial agent. Constructed wetlands have the potential for TCS removal, but knowledge about the relative importance of sediment, plants, and microbes is limited. TCS removal performance was investigated in well-operated constructed wetlands planted with three different types of aquatic plants: emergent Cattail (C-T), submerged Hornwort (H-T), and floating Lemnaminor (L-T). Results showed that the TCS removal efficiencies from water were all greater than 97 %. Maximal TCS adsorption to sediment in the C-T wetland (13.8 ± 0.6 ng/g) was significantly lower than in the H-T wetland (21.0 ± 0.3 ng/g) or the L-T wetland (21.4 ± 0.6 ng/g). The maximal TCS concentrations in plants were 5.7 ± 0.2 and 7.2 ± 0.5 μg/g for H-T and L-T, respectively, and it was below the minimal detection limit (MDL) in C-T. Deep 16S rRNA gene sequencing results revealed that C-T wetland had the highest community richness and diversity. Some bacteria, like beta-Proteobacteria, gamma-Proteobacteria, and Bacteroidetes were detected and might have significant correlations with TCS degradation. Overall, with regard to soils, plants, and microorganism, accumulation in sediment and plants in H-T and L-T was high, while in C-T biodegradation likely played an important role. © 2015, Springer-Verlag Berlin Heidelberg.

Lu J.,Weifang University | Wang S.,Weifang University | Tian J.,Shandong Institute for Product Quality Inspection
Inorganic Chemistry Communications | Year: 2015

Abstract An optically active phthalocyaninato zinc complex containing eight chiral diethyleneglycol mono-(S)-2-methylbutyl ether moieties at the β-position of the phthalocyanine ring, namely (S)-ZnPc (1), was designed, synthesized, and characterized. Using a phase transfer method, the complex 1 was self-assembled to helical nanostructures and the self-assemble behavior was systemically investigated by electronic absorption and circular dichroism spectra, transmission electron microscopy and scanning electron microscopy. In addition, nonlinear optical (NLO) properties of complex 1 and I-V properties of the helical nanostructures formed from complex 1 were also measured. © 2015 Published by Elsevier B.V.

Jia Y.-L.,Ocean University of China | Jia Y.-L.,Shandong Institute for Product Quality Inspection | Wei M.-Y.,Ocean University of China | Wei M.-Y.,Guangdong Medical University | And 4 more authors.
Organic Letters | Year: 2015

A pair of new enantiomeric alkaloid dimers, (+)- and (-)-pestaloxazine A (1), with an unprecedented symmetric spiro[oxazinane-piperazinedione] skeleton, consisting of 22 carbons and 12 heteroatoms, were isolated from a Pestalotiopsis sp. fungus derived from a soft coral. Separation of the enantiomeric alkaloid dimers was achieved by chiral HPLC. Their structures including absolute configurations were elucidated on the basis of a comprehensive analysis of their spectroscopic and X-ray diffraction data and CD calculations. (+)-Pestaloxazine A exhibited potent antiviral activity against EV71 with an IC50 value of 14.2 ± 1.3 μM, which was stronger than that of the positive control ribavirin (IC50 = 256.1 ± 15.1 μM). © 2015 American Chemical Society.

Zhuang H.,Shandong University | Yang M.,Shandong University | Cui Z.,Shandong University | Wang F.,Shandong Institute for Product Quality Inspection
Lecture Notes in Engineering and Computer Science | Year: 2016

Vision based hand gesture recognition is becoming a hot research field. This paper proposes a novel static hand gesture recognition method based on combinational features. The method has two new points. First, it combines the gesture's local binary pattern (LBP) feature with curvature scale space (CSS) corner feature together. Second, it employs the compressive sensing (CS) to classify gestures. Through doing experiments on a hand gesture database confirms that recognition rate can reach 96.25%, it performs better than some other methods.

Li L.,Shandong University | Li L.,Shandong Institute for Product Quality Inspection | Liu E.,Shandong University | Wang X.,Shandong University | And 2 more authors.
Materials Science and Engineering C | Year: 2015

Abstract A polymer film incorporated gold nanoparticle modified electrode was fabricated. The fabricated process involved eletrodeposition of gold nanoparticles and electropolymerization of the 3-methylthiophene (abbreviated 3MT) onto the glassy carbon electrode (GCE). The resulting electrode (P3MT-nano-Au/GCE) was characterized by scanning electron microscopy (SEM), and a simultaneous determination of naphthol isomers at P3MT-nano-Au/GCE was studied using semi-derivative voltammetry. Because of the synergistic effect of gold nanoparticles and poly(3MT), the sensitivity and distinguishability in the simultaneous determination of naphthol isomers were greatly increased. Besides, a further increase in the detecting sensitivity of naphthol isomers could be obtained in the presence of surfactant, cetyl trimethyl ammonium bromide (CTAB). Also, the role of different kinds of surfactants was texted and the action mechanism was discussed in detail. Under the optimal conditions, the linear calibration ranges of the determination of naphthols were 7.0 × 10-7 to 1.5 × 10-4 mol/L for 1-naphthol and 1.0 × 10-6 to 1.5 × 10-4 mol/L for 2-naphthol with detection limits of 1.0 × 10-7 and 3.0 × 10-7 mol/L (S/N = 3), respectively. © 2015 Elsevier B.V. All rights reserved.

PubMed | Shandong University and Shandong Institute for Product Quality Inspection
Type: | Journal: Protein expression and purification | Year: 2016

In well-established heterologous hosts, such as Escherichia coli, recombinant proteins are usually intracellular and frequently found as inclusion bodies-especially proteins possessing high rare codon content. In this study, successful secretory expression of three hydrolases, in a constructed inducible or constitutive system, was achieved by fusion with a novel signal peptide (Kp-SP) from an actinomycete. The signal peptide efficiently enabled extracellular protein secretion and also contributed to the active expression of the intracellular recombinant proteins. The thermophilic -amylase gene of Bacillus licheniformis was fused with Kp-SP. Both recombinants, carrying inducible and constitutive plasmids, showed remarkable increases in extracellular and intracellular amylolytic activity. Amylase activity was observed to be>10-fold in recombinant cultures with the constitutive plasmid, pBSPPc, compared to that in recombinants lacking Kp-SP. Further, the signal peptide enabled efficient secretion of a thermophilic cellulase into the culture medium, as demonstrated by larger halo zones and increased enzymatic activities detected in both constructs from different plasmids. For heterologous proteins with a high proportion of rare codons, it is difficult to obtain high expression in E. coli owing to the codon bias. Here, the fusion of an archaeal homologue of the amylase encoding gene, FSA, with Kp-SP resulted in>5-fold higher extracellular activity. The successful extracellular expression of the amylase indicated that the signal peptide also contributed significantly to its active expression and signified the potential value of this novel and versatile signal peptide in recombinant protein production.

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