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Siquan Hu, Juan Hu, Chundong She
With the rapid development of wireless sensor network (WSN), the WSN data gathering is attracting more interests over the years. Due to the high cost of specialized handheld terminals, Android tablets are chosen to design a unified handheld terminal for WSN data gathering. Data are transmitted from WSN...
Siquan Hu, He Zhou, Chundong She
ZigBee technology is a short range, low-cost, low power-consumption and low data rate wireless sensor network technology, which makes it a suitable technology for smart home networks. In this paper we present a systematic method to construct smart home networks with ZigBee chip. Both hardware design...
Rizhong Li, Jionghui Rao, Xuanhua Lei, Junbin Huang, Hongcan Gu
The performance of Photoelectricity Trackers is usually required to be tested in the process of developing or repairing. A simple revolving photo-electricity target is realized based on a collimator, and it can be used to test the Photoelectricity Trackers’ performance. The photo-electricity target is...
Ping Li, Lanlan Zhang, Mengli Xu, Ting Fan, Gaofeng Liang
The forefront of photonic crystal theory is applied in this paper to solve such technical difficulties as low color purity, unsatisfactory effect of deep treatment that are commonly seen in photodynamic therapy instruments. By using the transfer matrix method, band gap property of photonic crystals...
Xiu Juan Sun, Chuan Jiang Wang
Considering the parameter uncertainties, model inaccuracies and external disturbances in the servo-system, it is difficult to achieve an ideal performance of the conventional sliding mode controller (SMC), so we designed a robust adaptive global sliding mode controller (RA-GSMC) by constructing a global...
Xiaorong Lü, Xiaolian Lü
This paper designs the straw collecting box of the corn harvester, which is used to recover the corn straw. In the process of harvesting the corn harvester, the device can be able to complete the task of straw collection, which can effectively reduce the labor intensity of the straw recycling, improve...
Juan Liu
Based on the analysis of structure composition, material properties, operating conditions of bleed air system, a finite element model is developed and the natural frequencies and vibration modes are obtained by NASTRAN. The results show that the first ten natural frequencies comparatively dense, each...
Guiqing Wang, Long Wang
Effect of Be addition on age hardening and precipitation behaviors of Al11Si3Cu alloy was investigated by hardness measurement and differential scanning calorimetry (DSC) analysis. The age hardening results show that 0.25% Be addition increases the peak hardness of Al11Si3Cu alloy about 20HV. DSC results...
Wei-Cheng Wu, Fang Su, Chen-Sheng Wang
Through the research of the main parameters, performance and advantages of shield mule,and the application process of working face equipment moving process of the ultra thick seam with full thick low caving coal mining technology in Tongxin mine,solved that has been existed since as the retreat time...
Yuqin Jiao, Cuiping Song, Wei Xu, Hongxin Zhang
Ball transmission mechanism is a new type power delivery structure. Based on the merits and demerits analysis of belt, chain, gear and fluid drive, the ball transmission mechanism is put forward. The structure and working process of same or reverse direction ball transmission mechanism were described,...
Yuqin Jiao, Hongxin Zhang, Wei Xu
Hydraulic Confined Piston Engine (HCPE) is a new type power device especially suitable for hydrostatic driving vehicle. Its working process is influenced by complex coupling of liquid, solid and gas. Its working process simulation is the basis of later performance evaluation and design optimization....
Xuan Zhang
Enormous amount of information on the Internet, there are several of information and it is so complicated. Information retrieval is of blind and too much redundant information is in search results. In order for a user to much more effective at getting the information they needed, This paper researches...
Leichang Huang, Chen Chen
Control can make things develop following the planning direction, and keep the change of deviation from target in the permitted limits. Ecological control eco-control combines ecology with cybernetics, which researches on the process of information transfer, transformation, treatment for the ecosystem...
Guangke Xu, Fuchun Sun, Weiwei Zhang, Ming Li, Zhenhua Zhu, Andong Wang, Fuqiang Zhao, Jie Liu, Xiuzhong Gong
Ultrasonic partial discharge detector can discover and locate the partial discharge, and is used widely. Recently more and more ultrasonic sensor and partial discharge detector were produced by different producer. There are so many styles and kinds that detector functions are intermingled. For example,...
Jie Yang, Dewen Liu, Yani He, Qingfeng Xiao, Zhongli Guo
This paper use Midas to build the three-dimensional research model on varied construction stages of foundation pit, in which the foundation pit applies the scheme of combing continous wall and inner support. In geotechnical engineering, the support pattern regularly applied is continuous wall, whose...
C. Zhang, Y. Li, Y. Wang, Y. Ma, X. Zhao
The effect of packaging on the quality of fresh-cut thyme was evaluated. The packaging showed no significant influence on the shelf life of the fresh-cut thyme when its shelf life was 7 d. The 1-MCP and modified atmosphere packaging treatments hold the sensory features of the thyme, and avoided the loss...
Changyong Jing, Shaohua Ling
The treatment of anion surfactants in wastewater with the electrochemical reactor is studied in this paper. Factors affecting the removal rate were investigated,such as anode material electric current density electrolyse time electrolyte and pH etc.At the optimal conditions of electric current density...
Da-Yu Zheng, Qiu-Yan Chen, Li-Ping Gao, Lei Liu, Shuo Chen, Xiang Li, Hai-Feng Yu, Jie Li
Draw the commonly refrigerants table for writing in the program selector working pair in tune content. Selection according to the evaporation temperature of low temperature refrigerant, based on traditional non-azeotropic refrigerant select automatic cascade principle, the preparation method of choice...
M.J. Yan, S.Y. Wang, C.T. Fan, W.J. Wu, J.W. Kan
To meet the demands of rotating machine monitoring system for self-power, a novel PZT wind generator (PWG) was presented. The influence of magnetic force (number and configuration of the magnets) and wind speed on energy generation of the PWG was investigated experimentally. The research results show...
L.D. Gao, R.J. Zheng, T. An, S. Zhang, M.L. Pang
Phytoremediation of Pb-contaminated soil was studied with -cyclodextrin as enhancing agent using Brassica Juncea. Effects of the addition dosage and the addition time of -cyclodextrin, and Pb concentration in soil on the plant growth were investigated. Plants were cultivated in an environmental control...
Yuanchao Wang, Lushun Su, Yu Li
With the rapid development of power electronic devices, high-power IGBT is increasingly popular, It is used as a switching device in SVG static var generator. Due to the large switching losses, we need to design a suitable radiator, to maintain the highest temperature of 80 C in working condition, then...