Huanggang, China

Huanggang Normal University
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.

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Xiaojun L.,Huanggang Normal University
Cluster Computing | Year: 2017

In the circumstance of big data, the traditional collaborative filtering recommendation algorithm in e-commerce system is faced with the problems of data sparse, accuracy, real-time and etc., this paper proposes an improved clustering-based collaborative filtering recommendation algorithm. The algorithm introduces time decay function for preprocessing the user’s rating and uses project attribute vectors to characterize projects, user interest vectors to users and use clustering algorithms to cluster the users and the projects respectively. Then the improved similarity measure methods are used to find the user’s nearest neighbor and project recommended candidate set in the cluster. Finally, recommendations are produced. Theoretical analysis and experimental results show that the algorithm not only can effectively solve the problems of data sparse and new project, but also can portrait for users in multi dimension and reflect the user’s interest changing. The recommended accuracy of the algorithm is improved obviously, too. © 2017 Springer Science+Business Media New York

Zhang B.,Huanggang Normal University
Journal of Chemical and Pharmaceutical Research | Year: 2014

In 21st century, Chinese men 110m hurdle suddenly raised analysis and research on hurdle performance and techniques have already become a hot topic. Carry out researching on 4 factors significance that affects hurdle performance, utilizes multiple linear regression, analyzes Liu Xiang 110m hurdle total performance significance in stages from start to first hurdle, hurdle step soaring, three-pace running, the last exertion, then applies SPSS software in implementing unknown parameters estimation and significance testing. To define 4 factors correlations with total performance, establishes grey relational degree model, gets that techniques in last exertion, from start to first hurdle are Liu Xiang strong points, and techniques in three-pace run, hurdle step soaring are his weak points.

Zhang B.,Huanggang Normal University | Zhang S.,Hebei University | Lu G.,Wuhan Institute of Physical Education
Journal of Chemical and Pharmaceutical Research | Year: 2013

Based on the research on the exercise capacity influencing factors of 100m sprint, this paper proposes comprehensive evaluation and prediction model based on fuzzy neural network, which is the improvement of the existing athletic ability evaluation systems and overcomes the shortcomings of traditional methods' strong subjectivity. The obtained fuzzy neural network system cannot only ensure continuous learning and correction, but also can make the network converge quickly according to the practical significance of the specific parameters. Through examples test, the evaluation results are objective and have the ideal precision. The model can not only be used to simulate and predict the athletic performance, as a basis to develop targeted training programs, but also can provide quantitative criteria in the athletes selection process, which has a high application value and broad application prospects.

Xu Z.,Wuhan University of Technology | Xu Z.,Huanggang Normal University | Yu J.,Wuhan University of Technology | Xiao W.,Wuhan University
Chemistry - A European Journal | Year: 2013

Mesoporous ferrihydrite/SiO2 composites were synthesized according to a water-in-oil microemulsion method and characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, thermogravimetry, nitrogen-adsorption/ desorption, and by X-ray photoelectron spectroscopy. The as-prepared porous ferrihydrite/SiO2 composites showed an excellent adsorption performance for formaldehyde (HCHO) removal from indoor air at ambient temperature. It was found that the aging time during the synthesis had a sig Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Xu Z.,Wuhan University of Technology | Xu Z.,Huanggang Normal University | Yu J.,Wuhan University of Technology
Nanoscale | Year: 2011

Fe-modified TiO2 nanotube arrays (TiO2 NTs) were prepared by annealing amorphous TiO2 NTs whose surface was covered with Fe3+ by a dip-coating procedure, and characterized by scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and UV-visible reflectance spectroscopy. The photoelectrochemical properties were evaluated by the photocurrent response and photoelectrocatalytic (PEC) degradation of methylene orange (MO) and 4-chlorophenol in water under visible-light irradiation (λ > 420 nm). The results showed that a Fe-modified TiO2 NTs electrode exhibited a larger photocurrent response and higher PEC activity for the degradation of organic pollutants than a pure TiO2 NTs electrode. At a bias potential of 0.4 V, the photocurrent response of a 0.5 M Fe-modified TiO2 NTs electrode exceeded that of a pure TiO2 NTs electrode by a factor of about 10, and the PEC degradation rates of MO and 4-chlorophenol on a 0.5 M Fe-modified TiO2 NTs electrode exceeded those on a pure TiO2 NTs electrode by a factor of about 2.5. The larger photocurrent response and higher PEC activity of Fe-modified TiO2 NTs could be attributed to the enhancement of separation of charge-carriers at the external electric field and the extension of the light response range of TiO2 to the visible-light region with the narrowing of the band gap. © 2011 The Royal Society of Chemistry.

Wang J.,Zhejiang University of Technology | Jiang X.,Huanggang Normal University
Sensors and Actuators, B: Chemical | Year: 2014

Anodic near-infrared electrochemiluminescence (NECL) from 3-mercaptopropionic acid (MPA)-capped CdTe/CdS coresmall/shellthick quantum dots (QDs) without any co-reactants were studied in aqueous solution for the first time. A stable and intensive anodic NECL emission at +1.32 V with an onset potential of +0.84 V was observed in pH 7.4 PBS at an indium tin oxide electrode, which results from the annihilation process between the oxidation products of QDs and the produced QDs anions. Various influencing factors, such as pH, electrolyte, scan rates and electrode materials on the NECL were investigated. Based on the selective quenching by Cu2+ to the NECL emission from the QDs, a simple and sensitive method for the determination of Cu2+ was developed. Moreover, as a practical application, the proposed method was used to monitor Cu2+ level in lake water and milk with satisfactory results obtained. © 2014 Elsevier B.V. All rights reserved.

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.

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.

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.

Peng J.,Huanggang Normal University
Fuzzy Optimization and Decision Making | Year: 2013

Real-life decisions are usually made in the state of uncertainty or risk. In this article we present two types of risk metrics of loss function for uncertain system. Firstly, the concept of value at risk (VaR) of loss function is introduced based on uncertainty theory and its fundamental properties are examined. Then the tail value at risk (TVaR) concept of loss function is evolved and some fundamental properties of the proposed TVaR are investigated. Both the VaR and TVaR are harmonious risk metrics. The suggested VaR or TVaR methodology can be widely used as tools of risk analysis in uncertain environments. © 2012 Springer Science+Business Media New York.

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