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Amgalang, China

Shen B.,Baoding University
Proceeding of 2012 International Conference on Information Management, Innovation Management and Industrial Engineering, ICIII 2012 | Year: 2012

Since the foreign-related talents in international trade and business are valuable strategic human resource to carry out the Hebei coastal development strategy, It is inevitable request for achieving its development goals to build a high-quality team of talents, and so the research of competency model of the foreign-related talents is very important. This paper collected the data on the competencies of foreign-related talents from 500 foreign-related companies in China via a questionnaire and 10 of them were interviewed face to face. 16 items were extracted from 35 items through the factor analysis, and then the study assumes the structure model by using Structural Equation Model (SEM) method to verify the hypothetical models. Finally the paper not only builds up the structural equation model of foreign-related talents , but also proves the model systematicness by using quantitative methods and researches the relative importance of the competency variables for the model. The paper has an important significance to cultivate the foreign-related talents. ©2012 IEEE. Source

Zhang Q.,Baoding University
ZAMM Zeitschrift fur Angewandte Mathematik und Mechanik | Year: 2015

In this paper, we establish the blowup criterion of smooth solutions for the incompressible chemotaxis-Euler equations in Rd with d=2,3 by ∥∇u∥L∞ and ∥n∥L∞. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Source

Adipic acid was synthesized from cyclohexanol oxidized by ACC/silica gel in 89% yield within 3 h at 300C under ultrasound irradiation. Source

Qiao F.,Baoding University | Du J.,Chenguang Biotech
Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences | Year: 2013

A simple and selective molecularly imprinted matrix solid-phase dispersion (MI-MSPD) method coupled with high performance liquid chromatography (HPLC) ultraviolet detection was developed for rapid screening of clenbuterol hydrochloride (CH) in chicken samples. The new molecularly imprinted microspheres (MIM) were synthesized by using butylamine and chloroaniline as dummy template with aqueous suspension polymerization and revealed good affinity to CH in aqueous solution. The application of the obtained MIM as sorbent of matrix solid-phase dispersion (MSPD) improved the selectivity of extraction procedure and avoided the effect of template leakage on quantitative analysis. Under the optimized conditions, good linearity of CH was obtained in a range of 0.059-18.30μgmL-1 with the correlation coefficient (R) of 0.9996. The recoveries of CH at three spiked levels were ranged from 92.0 to 99.1% with the relative standard deviation less than 4.0% (n=3). The presented MI-MSPD-HPLC method combined the superiority of MIM and MSPD, and therefore could be potentially applied for the determination of CH in complicated biological samples. © 2013 Elsevier B.V. Source

Liu B.,Hebei University | Yan H.,Hebei University | Qiao F.,Baoding University | Geng Y.,Hebei University
Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences | Year: 2011

A new pretreatment method, solid-phase extraction combined with dispersive liquid-liquid microextration (SPE-DLLME), was proposed in first time for the determination of clenbuterol (CLB) in porcine tissue samples. The tissue samples were firstly extracted by SPE, then its eluents were used as dispersant of the followed DLLME for further purification and enrichment of CLB. Various parameters (such as the type of SPE sorbent, the type and volume of elution solvent, the type and volume of extractant and dispersant, etc.) that affected the efficiency of the two steps were optimized. Good linearity of CLB was ranged from 0.19μg/kg to 192μg/kg with correlation coefficient (r 2) of 0.9995. The limit of detection (LOD) was 0.07μg/kg (S/N=3) and the recoveries at three spiked levels were ranged from 87.9% to 103.6% with the relative standard deviation (RSD) less than 3.9% (n=3). Under the optimized conditions, the enrichment factor (EF) for CLB could up to 62 folds. The presented method that combined the advantages of SPE and DLLME, had higher selectivity than SPE method and was successfully applied to the determination of CLB in tissue samples. © 2010 Elsevier B.V. Source

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