作者机构：
[沈连丰; 邓曙光; 李俊超] National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China;[邓曙光] Department of Physics and Telecommunication Engineering, Hunan City University, Yiyang 413000, China
通讯机构：
[Shen, L.] N;National Mobile Communications Research Laboratory, Southeast University, China
作者机构：
[Li Jian] Hubei Univ Educ, Dept Comp Engn, Wuhan 430000, Peoples R China.;[Jim Huixia] Hunan City Univ, Dept Phys & Telecom Engn, Yiyang 413008, Peoples R China.;[Wei Huihong] Wuhan Ctr Meteorol Observ, Wuhan 430000, Peoples R China.
会议名称：
International Conference on Future Computer Science and Application (FCSA 2011)
会议时间：
JUL 16-17, 2011
会议地点：
Kota Kinabalu, MALAYSIA
会议主办单位：
[Li Jian] Hubei Univ Educ, Dept Comp Engn, Wuhan 430000, Peoples R China.^[Jim Huixia] Hunan City Univ, Dept Phys & Telecom Engn, Yiyang 413008, Peoples R China.^[Wei Huihong] Wuhan Ctr Meteorol Observ, Wuhan 430000, Peoples R China.
关键词：
thunderstorm;forecast;wavelet
摘要：
Using the thunderstorm data from 1980 to 2006 observed by conventional observation stations, the statistical analysis of the temporal and spatial features have been performed. The results have shown that from 1980 to 2006, the total number of thunderstorms in each year was keeping on decreasing, the average number of thunderstorms of those years is 25.7 per day, and the thunderstorms mainly occurred in spring and summer. Thunderstorms mainly occurred in July and August, where there were seldom in January and November. The fastigium of thunderstorms is 14:00 to 17:00 in a day.
摘要：
This paper Introduces a simple and reliable method to connect an ordinary twisted pair RS-232 up to 2048 devices and transmit the communication data more than 10 kilometers by using ZLGCAN interface card, CAN232MB converters and other equipment. The virtual serial port server makes use of CAN-bus network for data communications, guaranteeing the reliability of communic-ation, improving the RS-232 transmission distance, and simplifying the wiring process. Meanwhile user’s operation of the virtual serial port and a standard PC are compatible with the basic serial port operation. However, if there is a large number of continuous transmission of data to the case, the ac-tual serial data transfer rates is determined by the number of virtual serial port.
作者机构：
[Wan XiaoJun] Hunan City Univ, Dept Comp Sci, Yiyang 413000, Hunan, Peoples R China.
通讯机构：
[Wan XiaoJun] H;Hunan City Univ, Dept Comp Sci, Yiyang 413000, Hunan, Peoples R China.
会议名称：
1st International Conference on High Performance Structures and Materials Engineering
会议时间：
MAY 05-06, 2011
会议地点：
Beijing, PEOPLES R CHINA
会议主办单位：
Hunan City Univ, Dept Comp Sci, Yiyang 413000, Hunan, Peoples R China.
会议论文集名称：
Advanced Materials Research
关键词：
Fracture toughness;small size sample;characterize;Consistency of J(IC) and K(IC)
摘要：
Fracture toughness K(IC) is one of the important parameters to characterize the general mechanical properties of materials, Tests for determining K(IC) are usually performed on a fatigue test machine. However, for some large structure parts, such as hydropower generator rotor, weighing several tons or even one hundred tons, it requires large samples for testing, which results in the large loss of the materials.. In the present work, we use a small sample to measure its J(IC), and the consistency of J(IC) and K(IC) on characterizing fracture toughness of small size samples was analyzed. Both the experimental results and theoretical calculations show that, under certain experimental conditions, J(IC) can replace K(IC) to characterize the fracture toughness.
作者机构：
[Tian Wanglan] Hunan City Univ, Phys & Telecom Engn Dept, Yiyang City, Hunan, Peoples R China.;[Lei Hongyan] Hunan Univ Arts & Sci, Sch Comp Sci & Technol, Changde, Peoples R China.
通讯机构：
[Tian Wanglan] H;Hunan City Univ, Phys & Telecom Engn Dept, Yiyang City, Hunan, Peoples R China.
会议名称：
International Conference on Computational Materials Science (CMS 2011)
会议时间：
APR 17-18, 2011
会议地点：
Guangzhou, PEOPLES R CHINA
会议主办单位：
[Tian Wanglan] Hunan City Univ, Phys & Telecom Engn Dept, Yiyang City, Hunan, Peoples R China.^[Lei Hongyan] Hunan Univ Arts & Sci, Sch Comp Sci & Technol, Changde, Peoples R China.
会议论文集名称：
Advanced Materials Research
关键词：
Energy Balance;Task Allocation;Reasoning Model;Wireless Sensor Network (WSN)
摘要：
In this paper, a reasoning model is proposed for energy efficiency task allocation in wireless sensor network. The presented energy efficient contract net protocol is used to implement the negotiation process. Multi-issue scoring function can evaluate the offer with multi-issues in a quantifiable way. An energy threshold is brought to decrease communications which will turn out to decrease nodes’ energy consumption. And the usage of energy threshold also promote the nodes with high level energy have more chance to implement tasks. The simulation results show that the allocation model has outstanding performance maintaining a fair energy balance and is energy efficient in negotiation process.
作者机构：
[Huang Jing; Wushao Wen] Department of Computer Science,Hunan City University;[Huang Jing; Wushao Wen] School of Software,Sun Yet-sen University
会议名称：
2011 4th IEEE International Conference on Computer Science and Information Technology（ICCSIT 2011）
会议时间：
2011-06-10
会议地点：
中国四川成都
会议论文集名称：
Proceedings of 2011 4th IEEE International Conference on Computer Science and Information Technology(ICCSIT 2011) VOL01
关键词：
DDoS;Ad-hoc network;attack
摘要：
In wireless network environment, various types of Denial of Service attacks are possible due to its inherent characteristic limitations such as lack of a centralized authority, easy eavesdropping, etc
摘要：
Coalition formation of the Multi-Agent System is a key issue, mainly focuses on how Multi-Agent System dynamically generate optimal task-oriented Agent Coalition. This article will discusses the formation of Agent coalition applying genetic algorithm to the formation of Agent coalition, Experimental results show that the genetic algorithm can quickly and efficiently identify Agent coalition. Furthermore the performance and convergence rate are better than correlation algorithm.
作者机构：
Department of Computer Science,Hunan City University, Yiyang Hunan 413000, P.R. China;School of Computer Science, China University of Geosciences, Wuhan 430074, P.R. China
会议名称：
The 4th International Symposium on Intelligence Computation and Applications(第四届智能计算及其应用国际会议 ISICA2009)
会议时间：
2009-10-23
会议地点：
湖北黄石
会议论文集名称：
The 4th International Symposium on Intelligence Computation and Applications(第四届智能计算及其应用国际会议 ISICA2009)论文集
摘要：
Differential evolution (DE), a fast and robust evolutionary algorithm for global optimization, has been widely used in many areas. However, the success of DE for solving different problems mainly depends on properly choosing the control parameter values. On the other hand, DE is good at exploring the search space and locating the region of global minimum, but it is slow at exploiting the solution. In order to alleviate these drawbacks of DE, this paper proposes an improved self-adaptive control parameter of DE, referred to as ISADE, for global numerical optimization. The proposed approach employs the individual fitness information to adapt the parameter settings. Hence, it can exploit the information of the individual and generate the promising offspring efficiently. To verify the viability of the proposed ISADE, 10 high-dimensional benchmark problems are chosen from literature. Experiment results indicate that this approach is efficient and effective. It is proved that this approach performs better than the original DE in terms of the convergence rate and the quality of the final solutions.Moreover, ISADE obtains faster convergence than the original self-adaptive control parameter of DE (SADE).
作者机构：
[万小军] Department of Physics and Telecommunication Engineering, Hunan City University, Yiyang 413000, China;[林建国; 王锋华; 万小军] Faculty of Material and Photoelectronic Physics, Xiangtan University, Xiangtan 411105, China
通讯机构：
Department of Physics and Telecommunication Engineering, Hunan City University, China
摘要：
BN coated Al2O3 fibre-reinforced NiAl-alloy composites were fabricated by hot pressing at 1 200-1 400 (C, and the interfacial microstructure and chemical stability of BN coated Al2O3 fibre-reinforced NiAl-alloy composites were investigated by scanning electron microscopy (SEM) and analytical transmission electron microscopy (TEM). It was found that the complicated chemical reactions and diffusion processes happened in the interface area between BN-layer and Ni25.8Al9.6Ta8.3 during the hot pressing at 1 200-1 400 (C. A continuous AlN-layer was formed at the interface due to the reaction between NiAl and BN. At the same time, Cr diffused extensively into the BN-layer and reacted with boron to form Cr boride precipitates (Cr5B3). In addition, a few particles of Ta-rich phase were also precipitated in NiAl matrix near the interface.
