Xi'an, China

Northwest University of Politics and Law (abbreviated NWUPL, Chinese: 西北政法大学 Pinyin: xīběi zhèngfǎ dàxué)is a university in Xi'an, one of the old law institutions in China. The university serves as the educational center of law in the northwest part of China and as one of the key bases of law institutions of higher learning in China. Wikipedia.

Time filter

Source Type

Yang H.-L.,Shaanxi Normal University | Guo Z.-L.,Shaanxi Normal University | Guo Z.-L.,Northwest University of Politics and Law
Computers and Mathematics with Applications | Year: 2011

In this paper, the notions of anti-reflexive kernel, symmetric kernel, reflexive closure, and symmetric closure of a soft set relation are first introduced, respectively. Then, their accurate calculation formulae and some properties are obtained. Finally, soft set relation mappings and inverse soft set relation mappings are proposed, and some related properties are discussed. © 2010 Elsevier Ltd. All rights reserved.

Cao X.,Northwest University of Politics and Law | Shao J.,Polytechnic University of Mozambique
Journal of Fiber Bioengineering and Informatics | Year: 2015

To predict textile quality fluctuation from the perspective of uncertainty factors, first, the reasons and patterns of quality fluctuation in the industrial textile processing were analyzed, and knowledge representation of textile quality attributes was studied. Second, through the theories of human-machineenvironment- system-engineering (HMESE), probability, and statistics, the uncertainty factors that affect textile production quality were extracted, and generation mechanism, interaction relationship and behavioral characteristics of them was explored. Then, an improved human-machine-environment brittle model oriented to the textile processing was built. As verified by the experiment and simulation, the results have shown that the improved brittle model has achieved a full range analysis of quality uncertainty of the textile, which are from the reason and pattern of quality fluctuation to generation mechanism, mutual relations, and behavior identification of the uncertainty factors. © 2015 Binary Information Press & Textile Bioengineering and Informatics Society.

Zhang L.-Y.,Southwest University of Political Science and Law | Zhang L.-Y.,Northwest University of Politics and Law | Liu Y.-J.,Southwest University of Political Science and Law | Liu Y.-J.,Northwest University of Politics and Law
Analytica Chimica Acta | Year: 2014

A label-free amperometric immunosensor for the detection of methamphetamine was developed. The prussian blue deposited/l-cystine-modified electrode was covered with nano-Au/(3-mercaptorpropyl) trime-thoxysilane film. Then, the nano-Au was used for the immunosensor platform to capture a large amount of anti-methamphetamine. PB exhibited excellent electrocatalytical properties toward the reduction of H2O2 at low overpotentia to amplify the amperometric signal, which enhanced the sensitivity of the immunosensor. The active sites of PB could be shielded and the access of H2O2 from solution to the electrode might be partially blocked after the completion of immunoassay, led to a linear decrease in the response current of the electrode over the range from 1.0×10-8 to 5.0×10-6molL-1of MA. The obtained immunosensor displayed excellent catalytic reduction toward H2O2 due to high activity and selectivity of PB. The influence of relevant experimental variables, including the construction of immunosensor platform, the amount of MPS and the time of immunoaction, was examined and optimized. © 2013 Elsevier B.V.

Ding Y.,Northwest University of Politics and Law
Carpathian Journal of Food Science and Technology | Year: 2016

Objective: By analyzing the effect of soybean polypeptide food on physical recovery of basketball players, we explored the influence of soybean peptide on immune system and its antioxidant effect, thus to provide a theoretical basis for the development of soybean peptide. Methods: By combining single factor experiment with response surface analysis, we did an optimization research on enzymolysis technology of soybean antioxidant peptides; gel filtration chromatography was adopted to separate bean pulp powder hydrolysate and 3 components of polypeptides were obtained; furthermore, in vitro and in vivo antioxidant experiments were performed. Results: Soybean peptides could eliminate hydroxyl radicals (produced by Fenton reaction) and superoxide anion radical (produced by pyrogallol system); they could significantly inhibit H2O2-induced hemolysis of red blood cells; in addition, they had an inhibitory effect on lipid peroxidation to some degree. Conclusion: Soybean peptides have health care effects such as enhancement of immunity, oxidation resistance and delaying senescence.

Ding Y.,Northwest University of Politics and Law
Carpathian Journal of Food Science and Technology | Year: 2015

This study aims to explore the effect of carbohydrate-protein drinks on androgen metabolism of athletes engaging in strength-needed sports items after acute resistant exercises. We chose 63 male athletes who engaging in strength-needed sports items and divided them randomly into three groups, carbohydrate-high protein group (HP group, CHO:PRO=3:1), carbohydrate-low protein group (LP group, CHO:PRO=6:1) and carbohydrate group (C group). Total intake of drinks was 15 ml·kg-1 and concentration of carbohydrate (CHO) was 8%. Drink intakes in 30 min before exercise, during exercise and 30 min after exercise were 6 ml·kg-1, 3 ml·kg-1 and 6 ml·kg-1, respectively. Resistant exercises were divided into deep squats and bench presses, and the load was 70% 1RM. Every athlete had four groups of resistant exercises and each group was repeated for eight times. Athletes could have 60 s rest between each group of exercise and 90 s rest after completion of four groups. After that, the load was changed to 50% 1RM, but rest time between each group of exercise remained the same. Bench presses were carried on after 150 s rest after deep squats, and the exercise load was the same as deep squats. Venous blood samples and urine samples of rest time, immediately after exercise, 3 h recovery time and next day morning after exercise were collected to test androgen levels in blood and urine as well as other exercise monitoring indexes.

Liu B.,Northwest University of Politics and Law
Journal of Computational and Theoretical Nanoscience | Year: 2016

In order to promote the continuous improvement of long-distance competition results, scientific and effective training have become the primary means of development. Through experimental study on the correlation between distance runners race results with dietary intervention, we found that in addition to effective and highly targeted training and simulation game training for long-distance runners, scientific and rational dietary ratio plays a decisive role on the training and race results. Dietary intervention can affect their body composition changes in the body to maintain a high hemoglobin concentration, increase its power and anaerobic valveless heart valve level, in order to stabilize the internal environment of normal oxygen supply. Meanwhile, the experiment also proved that dietary interventions can improve the ability of the players to restore the body to ensure that the quality of training before the game and competitive state, to provide the foundation for maintaining and improving athletic performance. Copyright © 2016 American Scientific Publishers. All rights reserved.

Qi Y.J.,Northwest University of Politics and Law
Applied Mechanics and Materials | Year: 2013

In order to find out the status of unmanned area and staff position in mine, the important content for intelligent mine is the detection and location of personnel underground. Analyze the architecture of location system and location principle based on Internet of Things(IoTs) along with ZigBee wireless networks and pyroelectric sensor technology. In the meantime, Install test wireless network nodes and achieve measurement data. The results show that this technique is suitable for the worse physical conditions in mine, lower in cost, higher accuracy in location and detection. The scheme can greatly improve the level of coal mine safety production and reduce the occurrence of catastrophes and casualties. © (2013) Trans Tech Publications, Switzerland.

Zhang C.,Northwest University of Politics and Law
Open Cybernetics and Systemics Journal | Year: 2015

The development of green food production, establishment and management of collecting and sorting documentary materials has been put on the agenda. Vigorously strengthen the production bases of green food, the producers of green food, wholesale markets of green food, distribution entities of green food, sales units of green food and supervision and management, establishing the certificate records of quality and records of supervision, strengthen the quality and safety responsibility consciousness of the agricultural producers will enhance the certification of credibility and competitiveness of the products. © Chong Zhang; Licensee Bentham Open.

Xing J.,Northwest University of Politics and Law
International Journal of Security and its Applications | Year: 2016

The recent years have witnessed the fast growth of mobile e-commerce in the world, and this model has become the most popular one among all the e-commerce models. However, compared with the traditional e-commerce models, the mobile e-commerce is less secure as the carriers, including smart phones, PDA, or handheld computers, can hardly reach the same high level of security as personal computers. The network gap caused by different network operators also causes the network delay when the users are doing cross-platform internet browsing. To solve these problems, a new scheme to reduce network delay and improve security level has been put forward. This scheme proposes to install a "routing box" in user's home at first. When the smart equipment is to be connected to the Internet, it shall log in on the equipment to be connected to the nearest cloud server which will send the connection request and connect the user to his/her aimed website quickly. Through SSL + WPKI protocol, the user's log-in information and other forms of information can be safely transmitted. The visiting history can be stored in cache in different levels via cloud server. Therefore, when the relevant information is visited again, the user request can be sent to his/her smart equipment through the nearest cloud server, which can resolve the network gap caused by cross-platform visiting. Such a scheme has been proved effective in local area network by test. © 2016 SERSC.

Tao B.,Northwest University of Politics and Law
Advance Journal of Food Science and Technology | Year: 2015

This study proposed the optimal strategy and suggestion with the sense of realistic value, through the study on food safety incidents of major sports events, so as to provide the theory support for the sustainable and stable development of hosting the major sports events, which can drive the development of the other different types, different levels of sports events. With the rapid development of economy and the fast integration step of world trade, the problem of food security becomes the major problem of the global problems. © Maxwell Scientific Organization, 2015.

Loading Northwest University of Politics and Law collaborators
Loading Northwest University of Politics and Law collaborators