Hengshui, China

Hengshui University

Hengshui, China

Hengshui University is a university in Hengshui, Hebei province, People's Republic of China, established by the provincial government. Wikipedia.

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Zhang J.,Hengshui University
Rengong Jingti Xuebao/Journal of Synthetic Crystals | Year: 2016

Polyacrylonitrile were prepared by precipitation method, and using the chemical adsorption method prepared PAN/TiO2 nanocomposites. The prepared conditions were studied by the degradation of Rhodamine B (RhB) under visible light irradiation. The optimum results indicated that PAN/TiO2 nanocomposites can be prepared under such conditions the molar ratio of AN and TiO2 was 1:120, heat treatment time is 30 min, the temperature of heat treatment is 270℃. The photocatalytic activity was also obtained for the degradation of methyl orange and malachite-green under visible light irradiation. We found that the photocatalytic activity of PAN/TiO2 nanocomposites is superior to pure TiO2.The degradation of pollutants with PAN/TiO2 composite particles is universal. © 2016, Chinese Ceramic Society. All right reserved.

Cui H.-F.,Hengshui University
Advanced Materials Research | Year: 2014

On the basis of the conjugate gradient method CD, the artile builds a new two-parameter P-NCD projected conjugate gradient method, the article gives two-parameter P-NCD Conjugate Gradient Method drop projection and on the strong Wolfe line search in the principles of the convergence criteria, the new algorithm is applied to estimate the equation with linear constraints in the model instantiated test,the results shows good results. © (2014) Trans Tech Publications, Switzerland.

Na L.,Hengshui University
Acta Crystallographica Section E: Structure Reports Online | Year: 2013

In the title complex, {(C2H8N)[Cu(C8H4O4)(C8H6N3)]} n , there are two CuII cations (each located on a centre of inversion), one benzene-1,2-dicarboxylate dianion, one 3-(pyridin-4-yl)-1H-pyrazol-1-ide anion and one dimethylammonium cation in the asymmetric unit. The dimethylammonium cation was highly disordered and was treated with the SQUEEZE routine in PLATON [Spek (2009). Acta Cryst. D65, 148-155]; the crystallographic data takes into account the presence of the cation. Each CuII cation exhibits a square-planar coordination geometry. A benzene-1,2-dicarboxylate dianion bridges two CuII cations, building a linear chain along [001]. The chains are connected by 3-(pyridin-4-yl)-1H-pyrazol-1-ide anions, constructing a layer parallel to (101). The layers are assembled into a three-dimensional supramolecular network through C - H...π interactions.

Liu S.,Hengshui University
International Journal of Security and its Applications | Year: 2016

The development of network technology has brought convenience to people's life, but also provides the convenience for the virus, Trojan and other destructive programs to attack the network. Then, the computer network security is becoming more and more dangerous. Accurately and scientifically predict the risk of network, it can effectively prevent the risk, and reduce the loss caused by the problem of computer network security. Computer network security is an early warning problem of multi index system. So, the traditional linear forecasting method cannot accurately describe the impact of each index on the evaluation results, and the accuracy of the prediction results is low. In order to improve the prediction accuracy of computer network security, this paper presents a new forecasting method for computer network security. Firstly, the evaluation index of computer network security is selected by expert system, and the weight of evaluation index is determined by the expert scoring method. Secondly, we put the index weight into the BP neural network, and use the BP neural network to learn it. Then, the parameters of BP neural network are optimized by the improved particle swarm optimization algorithm. After that, this paper uses a method based on the Fibonacci method principle to find the number of hidden layer node which has the best fitting ability. Finally, we use this algorithm to predict the network security of a certain enterprise in the next six months. The score is 0.67, 0.84, 0.72, 0.87, 0.86 and 0.91, which is close to the actual value of network security. © 2016 SERSC.

Ye C.F.,Hengshui University
Applied Mechanics and Materials | Year: 2014

This paper mainly discusses Database optimization technology of Power Designer in the software development. it includes the Horizontal partitioning table, the Vertical partitioning table and Table collapsing.The database optimization technology provided by Power Designer improve the efficiency of the system,such as the required connection of the query operation is reduced, the efficiency of the inquiry time to the record increased greatly compared with that of the original system. The efficiency of the optimized system also increased greatly, the number of the external keys and the indexes is also reduced. © (2014) Trans Tech Publications, Switzerland.

Sun J.,Hengshui University
Lecture Notes in Electrical Engineering | Year: 2015

The D3520 resin was suited for adsorption and desorption of fusel oil by the comparison study of different types of resin. The study confirmed that macroporous resin D3520 had favorable adsorption and desorption capability by comparing different resins based on adsorption quantity, adsorption rate, and desorption rate. Temperature affected the fusel oil adsorption rate of D3520 and with more impact the temperature was high. There was little difference in the adsorption rate at 25 and 30 °C and the rate was up to 58.85%. Among all strippant, the effect of acetone was higher than all concentration ethyl alcohol, up to 65.80%. After treatment by D3520, there was little difference in physical, chemical, and sensory indexes of Luzhou flavor liquor and was not a bad influence on Luzhou flavour liquor. The Luzhou flavor liquor was soft and well balanced, with more rich ester aroma, and the wine quality was better by the D3520 resin treatment. © Springer-Verlag Berlin Heidelberg 2015.

Liu N.,Hengshui University
Rengong Jingti Xuebao/Journal of Synthetic Crystals | Year: 2015

A new Zn (II) coordination polymer, [Zn3 (4-PP)4 (OH)2 (SO42 (H2O)2]n (1, 4-PP= 4-(1H-pyrazol-3-yl) pyridine), had been synthesized by hydrothermal method and structurally characterized by single-crystal X-ray diffraction as well as elemental analysis, IR spectra, PXRD, TG, and the thermal and fluorescent properties of the compound were also investigated. Compound 1 crystallizes in monclinic space group P21/c, with a=12.303 (3) nm, b=6.0083 (12) nm, c=25.308 (5) nm, β =101.40 (3) °, F (000) =1056, Dc= 1.882 g/cm3, V=1833.8 (6) nm3, Mr= 1038.94, Z=2, μ (MoKα) = 2.140 mm-1, R1=0.0672, wR2= 0.1300. In the complex 1, Zn (II) ion bridged by SO42- and OH- to construct a two-dimensional inorganic layer structure, and 4-PP ligand serves as the terminal ligand. The two-dimensional layers are assembled into three-dimensional supramolecular structures through the hydrogen bonding interactions. ©, 2015, Rengong Jingti Xuebao/Journal of Synthetic Crystals. All right reserved.

Shi W.,Hengshui University
WIT Transactions on Information and Communication Technologies | Year: 2014

Enhance corporate soft power was an important way of the sustainable development of the enterprise, which was an important aspect of enterprises to improve the competitive ability of the enterprise. Innovation capability is the core problem of the construction of the enterprise soft power in the construction of soft power. Under such circumvents, at first, the paper analyzes the innovation ability which is very important for promoting the enterprise soft power. Innovation ability is a growth factor of enterprise's soft power, which is important for the competitiveness of the brand. It can improve the competitive advantage, enhance the country's soft power, and then put forward the method to enhance the soft power of the path to innovation ability of enterprise perspective. It establishes the innovation evaluation system, good comprehensive training, and key breakthrough. It also establishes the open innovation concept, create internal environment for innovation, strengthen the human resource planning, and improve the level of corporate information. Innovation capability can integrate various resources and other ways to promote the building of innovation system. Improving the innovation capacity of enterprises is to provide reference for decision makers. © 2014 WIT Press.

Zhang S.G.,Hengshui University
Applied Mechanics and Materials | Year: 2014

The paper presents a preconditioned AOR iterative method if preconditioner is a general upper triangular matrix for solving a linear system whose coefficient matrix is an H-matrix. In addition, we discuss the convergence of corresponding methods. Finally, a numerical example is also given to illustrate our results. © (2014) Trans Tech Publications, Switzerland.

Zhou T.,Hengshui University
Applied Mechanics and Materials | Year: 2014

For solving the linear system Ax = b, different preconditioned iterative methods have been proposed by many authors. In this paper, we present preconditioned SSOR iterative method for solving the linear systems. Meanwhile, we apply the preconditioner to H-matrix and obtain the convergence result. Finally, a numerical example is also given to illustrate our results. © (2014) Trans Tech Publications, Switzerland.

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