摘要：
With the gradual expansion of the application field in wireless sensor networks, the problems of the energy consumption has received more and more attention. In wireless sensor networks, the location of sensor nodes and gateway nodes are usually fixed. To ensure that the energy consumption of the sensor network is minimized during data transmission, it is necessary to optimize the placement of relay nodes. This paper proposes the solution of relay nodes placement based on optimal transmission distance, which can minimize the energy consumption and extend the lifetime of the entire network during the transmission process. This scheme starts with a one-dimensional queue network and calculates the optimal distance for each hop transmission to minimize the energy consumption of the one-dimensional queue network. Due to the poor connectivity of the one-dimensional queue network, the concept of the optimal transmission distance is introduced into two-dimensional network, so that the placement scheme can be divided into the symmetrical relay node placement and the asymmetric relay node placement. Finally, the energy consumption of the network is minimized by properly selecting relay nodes. The simulation show that the proposed relay node placement scheme can reduce the energy consumption of the sensor network and extend the network life cycle.
作者机构：
[罗黎明] School of Computer and Information Engineering, Central South University of Forestry and Technology, Changsha, Hunan 410004, China;[于军] School of Optics & Electronic Information, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China;School of Science, Huazhong Agriculture University, Wuhan, Hubei 430074, China;[蒋峰] School of Computer and Information Engineering, Central South University of Forestry and Technology, Changsha, Hunan 410004, China<&wdkj&>School of Optics & Electronic Information, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China;[陈建军] School of Optics & Electronic Information, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China<&wdkj&>School of Science, Huazhong Agriculture University, Wuhan, Hubei 430074, China
通讯机构：
School of Computer and Information Engineering, Central South University of Forestry and Technology, Changsha, Hunan, China
作者机构：
[朱俊杰; 刘浩然; 蒋峰; 王湘中] School of Computer &Information Engineering, Central South University of Forestry and Technology, Changsha;410004, China;[朱俊杰; 刘浩然; 蒋峰; 王湘中] 410004, China
通讯机构：
[Liu, H.] S;School of Computer &Information Engineering, China
通讯机构：
[Jiang, Feng] C;Cent South Univ Forestry & Technol, Sch Comp & Informat Engn, Changsha 410004, Hunan, Peoples R China.
关键词：
Cell lysis;microelectrode chip;microfluidic
摘要：
Microelectrode chips were designed and prepared for cell lysis. The method involved pulverization of the cells by an electrical signal and attachment on the chip. Cell lysis was performed by a 10 volt square wave. This is a reduced voltage compared with traditional methods. This design offers an improved lysing rate, simple operation and design, and low cost.
作者机构：
[Jiang, Feng] Cent South Univ Forestry & Technol, Sch Comp & Informat Engn, Changsha 410004, Hunan, Peoples R China.
会议名称：
2nd International Conference on Advanced Information and Communication Technology for Education (ICAICTE)
会议时间：
AUG 16-17, 2014
会议地点：
Dalian, PEOPLES R CHINA
会议主办单位：
[Jiang, Feng] Cent South Univ Forestry & Technol, Sch Comp & Informat Engn, Changsha 410004, Hunan, Peoples R China.
关键词：
Innovative talents;Teaching effect;Teaching reform;Electronic information
摘要：
At present the main task of higher education is to improve the quality of talented person training, and cultivate innovative engineering talent. This article analyzes the current situation and the existing problems of electronic information profession students' innovative ability culture in Forestry University, and proposes the innovative ability can obtain through innovative engineering education concepts and teaching methods, build a new personnel training mechanism and modes which carried by colleges and enterprises, reform the curriculum system and teaching content. Furthermore, it is another way to culture innovative talents by training higher-Engineering teachers, constructing scientific evaluation and incentive mechanism.
摘要：
Aimed at the deficiency in the existing cell-elctrofusion devices such as high fusion voltage and so on, a low voltage cell fusion system based on micro system technology is developed. This system is composed by cell fusion chip and low voltage signal generator, and locating cells by precisely designed microstructure and signal. In this chip, small distance between one pair of microelectrodes reduced required voltage. It has advantages of low energy consuming, small bulk and operation safety and easily compared with the existence apparatus. The experiment shows the system can generate cell fusion signal to meet the need for fusing. It can be popularized.
关键词：
Data acquisition;Disaster rescue;Wireless sensing probe network;ZigBee
摘要：
In the scene of disaster rescue, there are usually many potential hazards. How to guarantee the safety of the Rescue Personnel and the rescue efficiency is a problem that deserves our concern. From the perspective of rescue security, this paper explores a new program that adopts ZigBee technology in disaster rescue. By making use of ZigBee technology's features of high-reliability and low-complexity, it can make the gas acquisition module, image acquisition module and human detection module to form a wireless sensing probe network and then realize the environmental monitoring of disaster site and disaster victims searching and rescuing. In this way, it can overcome its previous shortcomings, such as poor real-time detection network, difficulty in wiring, etc. and thus to achieve the purpose of efficient early warning and rescue.
会议论文集名称：
The 3th International Conference on Precision Instrumentation and Measurement 2011(CPIM2011)(第三届精密仪器与测量国际学术会议)论文集
关键词：
WLAN;tourist electronic ticket;WIFI;GS1010
摘要：
WIFI with its flexibility and mobility is more and more attention, showing a great prospect. In view of the safety of tourist a kind of the wireless electronic ticket based on WIFI was designed. This ticket can be momentarily written in the tourist information and access the wireless network system. Using the localization technology based on WIFI we can know the tourist real-time track to ensure the life safety of tourist through the electronic ticket. Otherwise, the electronic tickets can be recycled, so it can save sheets and avoid to polluting environment accord with environmental protection and developing a low carbon economy needs.
