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As the main place bearing human civilization, besides providing human beings with important material resources, cities also exert significant influences in their spiritual lives.
That means environment should be taken into serious consideration in the guiding theory of the overall urban planning, optimization of industrial structure, rational distribution, division of functional zones, total pollutant control, urban infrastructure construction and major engineering projects.
Strict environmental management and high-profile environmental law enforcement inspection should be implemented, combining key checks with regular checks, inspection with rectification, education with investigation and severely punishing those who violate environmental regulations and laws and cause serious consequences.

Assessment on vegetation dynamics under climate change for energy saving with satellite data and geographically weighted regression Na Zhao1,a, Xiaofan Zeng1,b, and Jianzhong Zhou1,c 1 School of Hydropower and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074, China a na.zhao.2011@mail.hust.edu.cn (corresponding author) b zengxiaofan2009@gmail.com c jz.zhou@mail.hust.edu.cn Keywords: net primary productivity, leaf area index, climate change, geographically weighted regression, energy saving Abstract.
Material and Methods The study area is Haihe Catchment, which is located in North China and same as Zhao et al. [6].
Comparing global models of terrestrial net primary productivity (NPP) overview and key results.

Wang b Department of Engineering Mechanics, MOE Key Laboratory for Strength and Vibration, Xi'an Jiaotong University, Xi'an 710049, China.
Material characteristics of the sandwich beam.

Design of Bending Fatigue Machine for Flexible Electronics Hu-wen Caoa, Ping Yangb and Bi-zhen Baoc Department of Mechatronics Engineering, University of Electronic Science and Technology of China, Chengdu, China acaohuwen@163.com, bping@uestc.edu.cn, cbaobizhen2006@126.com Key words: Flexible Electronics; Bending Fatigue; SCM; stepper motor.
At present, the research of material, Structure and mechanical property of flexible electronics mainly concentrates on limit analysis, just like the damage analysis of flexible electronics in the limit temperature and humidity conditions, limit load analysis of tension or torsion etc.

Comparison of Two Texture Retrieval Algorithms Xin-Wu Chen1,a, Yi-Xian Shen2,b and Shi-Xin Ma2,c 1College of Physics and Electronics Engineering, Xinyang Normal University, China 2Xinyang Energy Company, China achenxinwu@126.com,byi_xian_shen@126.com,cshi_xin_ma@126.com Keywords: Content based image retrieval; Contourlet transform; Wavelet transform; Texture image; Retrieval rate Abstract.
It behaves some regular changes in light intensive, and we always found them in all kinds of application fields including fingerprints, iris, feathers, clothes, leaves, material, zebra, worm, etc.
Short Brief of the Two Retrieval Systems The key technologies of texture image retrieval system include two aspects: feature vectors construction and distance measure.

Bridge Structural Safety Assessment Technology Based On Statistic Analysis SIMENG LIU1 ,a, FANGPING LIU1,b LU LIU1 ,c 1 ChongQing JiaoTong University, Chongqing, 400074, China a5537846@qq.com2, b115090140@qq.com, c86929431@qq.com Key Words: Bridge, Safety Assessment, Statistic Analysis, Controlling Figure Abstract: This paper aims to analyze the statistic rules of the live load effect and the degradation effect and propose some ideas on the bridge structural safety assessment on the condition that both effects closely relate to bridges’ structural performance.
However, if structures are under damage, there will be an irreversible transformation to the parameters reflecting the performance of the material strength.
Engineering Mechanics,2005, 22(4):90-95

Thermal analysis of edge illumination type LED backlight with heat pipe Wohuan Guan1, a, Yong Tang1,b* , Xinrui Ding1c, Bin Liu1, Longsheng Lu1 1Key Laboratory of Surface Functional Structure Manufacturing of Guangdong Higher Education Institutes, South China University of Technology,Guangzhou,510640,China ashiningfoon@foxmail.com, bytang@scut.edu.cn, cdingxinrui-1987@163.com Key words: Thermal analysis, LED-Backlight, Heat pipe Abstract.
Sung Ki Kim[7] explored the effects of composite conductivity of MCPCB, thermal interface material and fixture on the junction temperature of LEDs and temperature uniformity of the LED backlight unit.
[8]Mingyan Liu, Daming Wu:2011 International Conference on Electric Information and Control Engineering(Wuhan China, 2011), p 277-280

Because the construction and development of new city will rely more on the expansion of urban size, this will take up a lot of land and consume large amounts of water, energy and other material resources.
The key to problem is whether China's urbanization could take the road of sustainable development.
Of course, the sustainable development of city is a long-term and complex socio-economic systematic engineering.

Ahmed et al. [7] have reported exact solution of magnetohydrodynamics of Jeffrey materials over a stretched surface with convective heat transfer effect.
The problems of natural or forced or mixed convection flow of working fluids have numerous engineering applications.
The convective boundary conditions have many applications in industrial and engineering processes, including transpiration cooling process, material drying, etc.
Khan, Unsteady MHD Falkner-Skan flow of Casson nanofluid with generative/destructive chemical reaction.Chemical Engineering Science, 172 (2017) 694–706
Makinde, Magnetohydrodynamic stagnation point flow of a power-law nanofluid towards a convectively heated stretching sheet with slip, Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, 230(5) (2016) 345-354

Synthesis of a new semiconductor compound [(C5S5H3CH2O)4Ni](FeCp2)0.84 Yan-bing Zhang1,a, Ting Zhang 2,a, Xian-li Yang3,b , Wen-tao Zhang 3,b, Xiao-jing Wang 1,c* 1 School of Chemistry and Chemical Engineer, Inner Mongolia University, Hohhot, 010021 2 Bureau of Education of Tongliao，Tongliao,028000 3 Chemistry College, Inner Mongolia University for Nationalities, Tongliao, 028043 a email: bbzyb@163.com, b email: zwt1944@163.com,cemail: wangxiaojing@hotmail.com Key words: Semiconductor, Tetrathiafulvalene derivatives, Charge-transfer coordination compounds Abstract.
Remove acetone with vacuum distillation and then obtain the viscous material.
Put the material into the mixture solution composed of 40ml methanol, 40ml of ammonia and 3.4028g (25mmol) zinc chloride.