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Search Results: 1 - 10 of 132771 matches for " Yue-Fei Wang "
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Framework and Researching Content of Distributed Cryptography

Wang Lei,Zhu Yue-fei,

电子与信息学报 , 2005,
Abstract: Framework of distributed cryptography is presented based on its development and relations among its branches. A systematical model of distributed cryptography is described at the same time. And researching content of distributed cryptography is reviewed based on researching principles of cryptography and status of distributed cryptography.
Review of Urban Nonpoint Source Pollution Models

WANG Long,HUANG Yue-fei,WANG Guang-qian,

环境科学 , 2010,
Abstract: The development history of urban nonpoint source pollution models is reviewed. Features, applicability and limitations of seven popular urban nonpoint source pollution models (SWMM, STORM, SLAMM, HSPF, DR3M-QUAL, MOUSE, and HydroWorks) are discussed. The methodology and research findings of uncertainty in urban nonpoint source pollution modeling are presented. Analytical probabilistic models for estimation of urban nonpoint sources are also presented. The research achievements of urban nonpoint source pollution models in China are summarized. The shortcomings and gaps of approaches on urban nonpoint source pollution models are pointed out. Improvements in modeling of pollutants buildup and washoff, sediments and pollutants transport, and pollutants biochemical reactions are desired for those seven popular models. Most of the models developed by researchers in China are empirical models, so that they can only applied for specific small areas and have inadequate accuracy. Future approaches include improving capability in fate and transport simulation of sediments and pollutants, exploring methodologies of modeling urban nonpoint source pollution in regions with little data or incomplete information, developing stochastic models for urban nonpoint source pollution simulation, and applying GIS to facilitate urban nonpoint source pollution simulation.
Preparation of Four DSAs and Comparison of Their Electro-catalytic Activity

JI Yue-fei,WEI Jie,WANG Dong-tian,

过程工程学报 , 2012,
Abstract: Four different dimensionally stable anodes (DSAs) Ti/SnO2+Sb2O3, Ti/PbO2, Ti/Fe-PbO2 and Ti/SnO2+Sb2O3/Fe-PbO2 were prepared. Their surface morphology was characterized by SEM and polarization curves were investigated in H2SO4 solution. In order to explore their electro-catalytic activity, electro-catalytic degradation experiment was carried out with phenol as model organic compound. The research results indicated that Ti/SnO2+Sb2O3/Fe-PbO2 anode had the highest catalytic activity among the four anodes. The phenol removal rate reaches 95%. The accelerated lifetime of the electrodes with interlayer was improved obviously, reaching 16 h. In addition, the electro-catalytic degradation reaction of phenol on the four anodes followed first-order reaction kinetic law.
Measurement method for digital image stabilization based on randomness test

ZHANG Yue-fei,XIE Mei,WANG Hong-wei,

计算机应用研究 , 2011,
Abstract: This paper proposed a measurement method for digital image stabilization based on randomness test. Firstly,estimated the global motion vectors of the video stabilized by a digital image stabilization method.Then converted the global motion vectors into a series of binary sequence. Finally,utilized pseudorandom test to measure the randomness of the binary sequence and measured the stability of the stabilized video by using the randomness of the binary sequence. The experiment shows that the proposed method can measure the digital image stabilization methods exactly.
Local thermal conductivity of polycrystalline AlN ceramics measured by scanning thermal microscopy and complementary scanning electron microscopy techniques

Zhang Yue-Fei,Wang Li,R Heiderhoff,A K Geinzer,Wei Bin,Ji Yuan,Han Xiao-Dong,L J Balk,Zhang Ze,

中国物理 B , 2012,
Masquerader Detection and Identification Approach in Sensor Networks

XIE Lei,WANG Hui-bin,ZHU Yue-fei,XU Yong-jun,

计算机科学 , 2009,
Abstract: Masquerade attack is one of active attack forms in sensor networks,which will be a serious threat to the sy-nergies among sensor nodes.A collaborative neighbor based algorithm for masquerader detection and identification(CNAMDI) was proposed.In CNAMDI algorithm,nodes can use initiative or slave alarm rules to detect a masquerade attack and can identify the masquerader based on collaborative neighbor with volunteer rule of suspect set forwarding.CNAMDI algorithm can work without the need of any underlying ro...
Research and Implementation of Switched LAN Monitor

WANG Yang,ZHU Yue-fei,LIU Sheng-li,ZHANG Chang-he,

计算机应用研究 , 2005,
Abstract: With the continuous development of technology, packet-transferring course in LAN has been based on switch instead of broadcast. And switched LAN has already been applied widely. This article presents and implements a information monitor system running on Windows 2000/XP hosts in common 10M/100M switched LAN environment.
Design and implementation of mal-webpage detection system based on honeyclient

SUN Xiao-yan,WANG Yang,ZHU Yue-fei,WU Dong-ying,

计算机应用 , 2007,
Abstract: Now,Internet Explorer is the most popular client software which malwares often use.In allusion to such threats to Internet Explorer,the characters of Web attack were analyzed,and a mal-webpage detection system based on honeyclient was designed,in which spider was combined with honeypot.In the system,spider was used to collect source of urls,then client-engine automatically created Internet Explorer processes,and device-driven detector was used to detect malwares coming through Internet Explorer.In the end,the malicious webpage's url was added to the black list and the malware database was enlarged.
Krawtchouk Polynomials and Upper Bounds for Pure Additive Quantum Error Correcting Codes

Ma Yue-fei,

电子与信息学报 , 2007,
Abstract: Two universal bounds for pure additive quantum error correcting codes are obtained by using of Krawtchouk polynomials,and it is proved that the quantum Singleton bound and the asymptotic quantum Hamming bound are just the special cases of those two universal bounds.
Effect of Natural and Hydrothermal Synthetic Goethite on the Release of Methane in the Anaerobic Decomposition Process of Organic Matter

YAO Dun-fan,CHEN Tian-hu,WANG Jin,ZHOU Yue-fei,YUE Zheng-bo,

环境科学 , 2013,
Abstract: The effects of natural goethite (NGt) and synthetic goethite (SGt) on the release of methane in the anaerobic biochemical system consisted of dissimilatory iron-reducing bacteria (DIRB) and methane-producing bacteria (MPB) were investigated through batch tests with sodium acetate as the carbon source. To explore the effects and mechanisms of both mineral materials on the release of methane in the anaerobic decomposition process of organic matter in the presence of DIRB, the main gas components and total organic carbon (TOC), total inorganic carbon (TIC), and Fe2+ in the aqueous phase of the experimental process were determined and XRD analyses were conducted for the solid-phase product. Moreover, the minerals were analyzed by specific surface area (BET), X-ray diffraction (XRD), X-ray fluorescence (XRF). Modified Gompertz equation was used to fit the cumulative methane and carbon dioxide. Results showed that the maximum cumulative production of methane was brought forward by 60-78 days by the addition of goethite and CO2 was effectively reduced by 30%-67% compared with the control samples. SGt was more effective than NGt in promoting the release of CH4 and reducing the CO2 emission. Furthermore, the analysis of the solid product showed that the addition of goethite can fix part of CO2 by the formation of siderite.
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