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Huanggang, China

Huanggang Normal University is a full-time provincial public normal university in Hubei, China. It is under the Educational Administration of Hubei Province.HNU offers courses to undergraduate students as well as other training courses for continuing education. Wikipedia.

Wang C.,Huazhong University of Science and Technology | Wang C.,Huanggang Normal University | Shen Y.,Huazhong University of Science and Technology
IET Control Theory and Applications | Year: 2012

This study investigates the problem of delay-dependent robust stability for uncertain stochastic systems with interval time-varying delay. No restrictions on the derivative of the time-varying delay are imposed, although lower and upper bounds of the delay interval are assumed to be known. By decomposing the delay interval into multiple equidistant subintervals, new Lyapunov-Krasovskii functionals are introduced on these intervals, which result in being much less conservative than most existing results in the literature. In addition, the reduction in the conservatism of the proposed stability criteria is also attributed to the free-weighting matrix technique and a newly proposed bounding condition, which is used to estimate the upper bound of stochastic differential of the Lyapunov-Krasovskii functional without neglecting any useful terms. All the stability criteria are formulated in the form of linear matrix inequalities (LMIs), which are dependent on the size of the time delay. Some numerical examples are given to show the less conservatism and applicability of the obtained results. Moreover, when the number of the divided subintervals increases, the corresponding criteria can provide an improvement on the results. © 2012 The Institution of Engineering and Technology. Source

Xu Q.,Huanggang Normal University
Laser Physics Letters | Year: 2014

Decoherence tends to induce the quantum-to-classical transition, which leads to a crucial obstacle in the realization of reliable quantum information processing. Counterintuitively, we propose that the decoherence due to phase decay brings about the switch from photon correlation to anti-correlation. Stronger decoherence also gives rise to an enhancement of the transition from photon correlation to anti-correlation. This breaks the conventional correlation of strong decoherence with fast decorrelation. © 2014 Astro Ltd. Source

Zhou J.,Huanggang Normal University
Applied Mechanics and Materials | Year: 2012

This article tells the story of in order to effectively resist the invasion of external.NET platform system, improve system security, we must establish the prevention and monitoring technologies improve system security system. System programmer and administrators only in the system design stage, to do a good job safety prevention programs and solutions to security applications wherein, to nip in the bud, development of safer, more reliable and robust web system, and this paper Analysis the possible security problems of the.NET platform system; in view of the existing safety problems to make the safety performance analysis, finally put forward the platform system safety prevention programme. © (2012) Trans Tech Publications, Switzerland. Source

Zhang B.,Huanggang Normal University
Research Journal of Applied Sciences, Engineering and Technology | Year: 2013

The statistics of sports arena accidents show that the main reasons which leading to crowd stampede are the exports blockage and the poor surrounding transportations. In the process of evacuation, the most common problem is that there are a large number of people are stranded and also they are the main carrier which leading to crowded stampede. With large amounts of data and reasonable evaluations on staffs and transportation instruments. We propose inflow model in the crowding state, principle of maximum flow on channel design, optimal model of vehicle parking, evacuation model of subways and buses, according to sections of evacuation in stadiums. We analyze their usage area, marginal conditions and real data. Finally, we get some valuable results, which are curves of density and flow, evacuation time, formula for channel design, optimal parking design and formulas for evacuation time of subways and buses. Such data suits the real data from varied references. With the help of models and results, we get the total time of evacuation, simulation of progress and give parts of real situations of evacuation. According to such results, 100000 people's evacuation can be finished in about 45 min. On such basis, we propose some optimal plans for stadium and its surroundings building. © Maxwell Scientific Organization, 2013. Source

Yang G.,Huanggang Normal University
Proceedings - 2011 International Symposium on Intelligence Information Processing and Trusted Computing, IPTC 2011 | Year: 2011

Hadoop provides a sophisticated framework for cloud platform programmers, which, MapReduce is a programming model for large-scale data sets of parallel computing. By MapReduce distributed processing framework, we are not only capable of handling large-scale data, and can hide a lot of tedious details, scalability is also wonderful. This paper analyzes the Hadoop architecture and MapReduce Working principle, described how to perform a MapReduce job in the cloud platform, how to write Mapper and Reducer classes, and how to use the object, proposed a program based on the MapReduce framework that enables distributed programming, Comparison results show that use of MapReduce architecture simplifies distributed programming. © 2011 IEEE. Source

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