关键词：
United Cloud Computing;Model and Architecture;Interoperability
摘要：
the cloud computing has the potential of becoming a revolutionary technology that changes the way service computing is performed. This paper presents a new Extensible Model and Architecture for United Cloud Computing, This model explicitly addresses the limited scalability of a single-provider cloud, the lack of interoperability among cloud providers, and the lack of built-in Business Service Management support in current cloud offerings. The principles introduced in this paper are essential for the cloud computing vision to materialize to its full extent.
期刊：
Applied Mechanics and Materials,2011年71-78:4558-4563 ISSN：1660-9336
通讯作者：
Shao, Longtan
作者机构：
[Guo, Xiaoxia; Liu, Xiao; Shao, Longtan] State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China.;[Huang, Chuan] Wuhan Polytech Univ, Dept Comp Sci, Wuhan 430022, Peoples R China.;[Hua, Chengbo] FAW VW Automobile Co Ltd, Changchun 130011, Peoples R China.
通讯机构：
[Shao, Longtan] S;State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China.
会议名称：
International Conference on Green Building, Materials and Civil Engineering (GBMCE 2011)
会议时间：
AUG 22-23, 2011
会议地点：
Shangri La, PEOPLES R CHINA
会议主办单位：
[Shao, Longtan;Liu, Xiao;Guo, Xiaoxia] State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China.^[Huang, Chuan] Wuhan Polytech Univ, Dept Comp Sci, Wuhan 430022, Peoples R China.^[Hua, Chengbo] FAW VW Automobile Co Ltd, Changchun 130011, Peoples R China.
会议论文集名称：
Applied Mechanics and Materials
关键词：
Digital image processing;Displacement control;Inner force transducer;Triaxial test
摘要：
A static triaxial apparatus was designed and manufactured after consideration of shortages in traditional methods for force and deformation measurement. Compositions, structure and functions of this apparatus were introduced. Within this apparatus, an inner force transducer together with digital image processing technology was adopted in order to provide a more accurate measurement of test results. PC functions were modular designed, in order to make the complex processing of interactive features more clearly and easier operation. Finally, results of a typical CD test of saturated sand showed the good performances of this apparatus.
摘要：
Owing to its unique properties and wide engineering applications, magnetorheological fluids (MRF) has become a hot study area in the field of smart materials. In this paper experimental study of the microwave reflection behavior in MRF was carried out. The results indicated that at the same frequency the microwave reflectivity of MRF decreased with the increasing of magnetic field strength; and with the particle concentration increasing, microwave reflectivity first increased, then decreased, there is a critical concentration of 15%. Under the same magnetic field, with the increasing of microwave frequency, it first decreased, there is a lowest point at 9.2GHz, and then it increased. Usually, it is considered that the change of internal structure of MRF under external magnetic field is the main reason for the regulation behavior of microwave reflectivity.
关键词：
Congestion Control;Stream Control Transmission Protocol (SCTP);Transmission Control Protocol (TCP);Wireless Local Network (WLAN)
摘要：
The technologies of Wireless local networks and cellular network are very popular and more and more service under the integrated heterogeneous environment. Stream Control Transmission Protocol (SCTP) is considered as an ideal to support the communication between them by enabling a mobile client to freely switch the IP address in different networks. In this paper, we propose an extended analytical model for SCTP which consider the congestion window and scalable of congestion control mechanism. A great advantage of our model is that establishing a relationship between the throughput and congestion control mechanism. Furthermore, the analytical model provides a useful tool to improve congestion control mechanism of SCTP.
期刊：
Journal of Physics: Conference Series,2011年276(1):1-8 ISSN：1742-6588
通讯作者：
Fan Jijun
作者机构：
[Fan Jijun; Zhai Chaowu; Du Zhenfei] Wuhan Polytech Univ, Dept Math & Phys, Wuhan 430023, Peoples R China.;[Yu Nanhui] Wuhan Polytech Univ, Coll Mech Engn, Wuhan 430023, Peoples R China.
通讯机构：
[Fan Jijun] W;Wuhan Polytech Univ, Dept Math & Phys, Wuhan 430023, Peoples R China.
会议名称：
3rd International Photonics & OptoElectronics Meetings(第三届国际光子与光电子学会议 POEM 2010)
会议时间：
2010-11-03
会议地点：
武汉
会议主办单位：
[Fan Jijun;Zhai Chaowu;Du Zhenfei] Wuhan Polytech Univ, Dept Math & Phys, Wuhan 430023, Peoples R China.^[Yu Nanhui] Wuhan Polytech Univ, Coll Mech Engn, Wuhan 430023, Peoples R China.
会议论文集名称：
3rd International Photonics & OptoElectronics Meetings(第三届国际光子与光电子学会议 POEM 2010)论文集
关键词：
ER fluids;velocity measurement;laser speckle;dielectric particles
摘要：
Usually, it is regarded that the movement of dielectric particles in ER fluids is related to the generation of electrorheological effect. In this paper, the principle of measuring infinitesimal displacement by laser speckle is proposed to measure the velocities of particles in ER fluids. It is verified that speckles can be formed by illuminating laser beam on the starch ER fluids. The speckle patterns was recorded with high speed CCD camera, and the speckle patterns sequences with short time intervals was obtained by intercepting laser speckle video. Displacements parallel to electric field and perpendicular to electric field were obtained by processing the two consecutive speckle patterns. The experimental results showed the velocities of particles exhibit the trend towards an oscillatory decreased with time, and a critical electric field and a critical sample concentration exist, when lower than this critical electric field (concentration), the mean particle velocity tends to increase; when high than that, decrease instead. Moreover, the horizontal velocity of particle is almost zero, there is only small oscillatory movement of particles in the vertical direction of electric field when the particle chain of ER fluid forms a relatively stable structure.
摘要：
Recently, hybrid stochastic differential equations have received a great deal of attentionIt is surprising that there are not any numerical schemes established for the hybrid stochastic functional dif
关键词：
Hierarchical Mobile IP;Mutual Authentication Scheme;Digital envelope;Identity signature;Forward Secrecy
摘要：
In order to improve the efficiency and security of the authentication for Hierarchical Mobile IP protocol, we propose a novel authentication scheme, which introduced identity signature and digital envelope to authenticate the sender and receiver of the registration packet. Theoretically prove that the scheme is an effective mutual authentication scheme, and improve the security and resist security attacks.
作者机构：
[Yang, Hua] Wuhan Polytech Univ, Dept Math & Phys, Wuhan 430023, Peoples R China.;[Jiang, Feng] Zhongnan Univ Econ & Law, Sch Math & Stat, Wuhan 430073, Peoples R China.
通讯机构：
[Jiang, Feng] Z;Zhongnan Univ Econ & Law, Sch Math & Stat, Wuhan 430073, Peoples R China.
会议名称：
International Conference on Intelligent Materials and Mechanical Engineering (MEE 2011)
会议时间：
SEP 24-25, 2011
会议地点：
Guangzhou, PEOPLES R CHINA
会议主办单位：
[Jiang, Feng] Zhongnan Univ Econ & Law, Sch Math & Stat, Wuhan 430073, Peoples R China.^[Yang, Hua] Wuhan Polytech Univ, Dept Math & Phys, Wuhan 430023, Peoples R China.
会议论文集名称：
Advanced Materials Research
关键词：
Material properties;Hybrid stochastic material systems;Non-Lipschitz condition
摘要：
The crack density and crack growth rate are important parameters which are used to describe the fatigue damage and predict fatigue life of a composite material. Even the same good manufacturing practice, the fatigue damage of materials may be different. Also material properties often accompany random fluctuation. Thus stochastic systems are used to present the crack density and crack growth rate. It is surprising that there are not any numerical schemes established for hybrid stochastic systems in composite materials. In this paper, based on Markov chains, the Euler-aruyama method is developed, and the main aim is to show the convergence of the numerical solutions under the non-Lipschitz condition for hybrid stochastic material systems.
作者机构：
[Fan, Jijun] Wuhan Polytech Univ, Dept Math & Phys, Wuhan 430023, Hubei, Peoples R China.;[Yu, Nanhui] Wuhan Polytech Univ, Coll Mech Engn, Wuhan 430023, Hubei, Peoples R China.
通讯机构：
[Fan, Jijun] W;Wuhan Polytech Univ, Dept Math & Phys, Wuhan 430023, Hubei, Peoples R China.
会议名称：
International Conference on Civil Engineering and Building Materials (CEBM)
会议时间：
JUL 29-31, 2011
会议地点：
Kunming, PEOPLES R CHINA
会议主办单位：
[Fan, Jijun] Wuhan Polytech Univ, Dept Math & Phys, Wuhan 430023, Hubei, Peoples R China.^[Yu, Nanhui] Wuhan Polytech Univ, Coll Mech Engn, Wuhan 430023, Hubei, Peoples R China.
会议论文集名称：
Advanced Materials Research
关键词：
ER fluids;Velocity Measurement;Laser Speckle;Dielectric Particles
摘要：
In this paper, the principle of measuring infinitesimal displacement by laser speckle is proposed to measure the velocities of particles in ER fluids. It is verified that speckles can be formed by illuminating laser beam on the starch ER fluids. The speckle patterns was recorded with high speed CCD camera, and the speckle patterns sequences with short time intervals was obtained by intercepting laser speckle video. Displacements parallel to the direction of electric field and that perpendicular to the direction of electric field were obtained by processing the two consecutive speckle patterns. The experimental results showed that the velocities of particles decreased oscillatorily with time. There is a critical electric field and a critical sample concentration, when lower than this critical electric field (concentration), the mean particle velocity increased; otherwise, it decreased.
关键词：
web service composition;quality of service;web service;genetic algorithm
摘要：
The software architecture based on web service has become the critical technique to construct system in the distributed environments. The web service composition is the most important method to find the correct service in the complicated application circumstance. The key question is to find service based on the QoS and how to guarantee the quality. This thesis focuses the web service composition in order to get dynamic business cooperation and integration. The key component of web service is discussed and the method of web service composition is analyzed including the formalization verification and service composition architecture and the QoS-aware composition methods. Aimed at the application of web service composition, a method based on approved genetic algorithm is put forward. The simple genetic algorithm based web service composition has many problems such as slow convergence rate and non-optimal service composition. In this paper a genetic algorithm based on niche is provided for the Qos-aware composition and it can get more accurate service composition result and can get the optimal path quickly especially in the large scale problems according to the experiment.
关键词：
IT enterprise;incentive mechanism;sustainable development
摘要：
the face to global integration, highly integrated, highly competitive era, talent and technology has become the focus of competition, IT enterprises are so in particular. Establishing and improving an incentive mechanism is to stimulate enterprise IT staff enthusiasm for work, give full play to the creativity of employees, retaining a healthy sustainable development, making it an important way and there must be the road. This paper presents some effective approachs to solve these issues.
会议论文集名称：
3rd International Photonics & OptoElectronics Meetings(第三届国际光子与光电子学会议 POEM 2010)论文集
摘要：
An efficient pulsed CH3OH terahertz (THz) laser pumped by a TEA CO2 laser was investigated experimentally. A simple terahertz cavity and a TEA CO2 laser for the optically pumped THz radiation were studied experimentally. To improve THz laser energy and photon conversion efficiency, two different TEA CO2 lasers were developed to pump CH3OH. When CH3OH was pumped by the 9P(36) line with different powers of the CO2 laser, the generation of terahertz radiation with energy as high as 0.307mJ and 23.75mJ were obtained, respectively. The corresponding photon conversion efficiencies were 0.29% and 2.4%. The photon conversion efficiency increases by a factor of about 8. Meanwhile, higher peak power of pump laser effectively improves the photon conversion efficiency. And the optimum THz laser pressure increases with narrower pulse width of pump laser because of increasing absorptive gases molecules of CH3OH with higher peak power of pump laser.
摘要：
In the traditional planning and designing process of water conservancy project, there is a serious gap between the project visualization (“Visualization”) and the project calculation (“Calculation”). Usually, “Calculation” can not be guided by “Visualization”, and “Visualization” can not quickly reflect the result of “Calculation”. In order to resolve the disjoint between “Visualization” and “Calculation”, this article discusses the method of realizing the integration of “Visualization” and “Calculation” in planning and designing water conservancy project by adopting the technologies of Virtual Reality (VR) and Geographic Information System (GIS). The VR technology can provide a realistic, interactive and dynamic three-dimensional scene of the water conservancy project area by computer technologies. By this three-dimensional scene the analysts will get the immersive feeling even if they are not at the scene. GIS can provide the strong function such as spatial data storage and analysis, three-dimensional terrain analysis, and so on, to address its advantage in “Calculation”. So in this article, the three-dimensional virtual environment is built to express the terrain, topography and landscape of the project area, and with this three-dimension environment, the hydroelectric reservoir storage capacity, the submerged area and the volume of excavation and filling can be calculated.
关键词：
web service;ws-security;xml signature;xml encryption
摘要：
Traditional security technologies can't be applied in the web service security because of the special character of web service. This paper focuses on the technology of Web services and its security. The web service based on XML and SOAP in SOA is discussed and some problems which may lead to security are analyzed. The mechanism of the web service security is analyzed according to the application of web service in heterogeneous distributed system. Some security specifications of web service including XML signature, XML encryption and WS-Security are introduced. The global XML architecture in .NET platform is analyzed. The procedure of implementing the web security is presented. The character of web service security in the .NET platform and the web service enhancements are discussed.
会议论文集名称：
2010 International Conference on Information Technology and Industrial Engineering(2010年信息技术与工业工程国际学术会议 ITIE 2010)论文集
关键词：
applications based on web;interruption;resolution
摘要：
In the Web applications, due to the client crashing, misusing and other factors, the entire process must be restarted. This unexpected interruption not only wastes system resources, but also leads to incompleteness and discontinuity of some applications procedures. This paper proposes a new solution to solve these kinds of problems which COOKIES can not do. When the client sends a request to the server, the client will automatically record the key information of operation and save it to the server. And once the client re-sends a request to the server due to interruption, it will first search the key information saved in the server. This will achieve to record the history operating process at the client automatically. So the client receives these history records and does not have to repeat previous work.
摘要：
Fuzzy c-mean algorithm is sensitive to the initial value and its result is easy to fall into the partial minimum. Thus, two-stage fuzzy c-mean cluster algorithm is proposed. Firstly to estimate the classified number and the initial cluster center through the similar entropy(satisfies similarity and nearness), secondly carries on the cluster again through the fuzzy c-mean algorithm, finally use the two-stage Fuzzy C-Mean cluster recognition of the hand-written numerals based on the Zernike moments. The example given in the end of the paper testifies this method is effective and provides the theory for further establishment of the hand-written numeral recognition standard storehouse.
