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The modal of a structure is related with material properties, the forms of structure, and the boundary conditions and so on.
Acknowledgements The authors are grateful to the Key National Science and Technology Projects of China, forsupport of this research work under grant no. 2009ZX04014-035.
International Journal of Machine Tools and Manufacture, 2009, 49(12-13): 947-957
Research on Weak Mode Structure of CNC Bevel GearMilling Tool[J].JournalofTianjinUniversityof Science& Technology, 2007 22(4)
[4] Mao Kuanmin, Li Bin, Wu Jun, et.al.Stiffness influential factors-based dynamic modeling and its parameter identification method of fixed joints in machine tools.International Journal of Machine Tools and Manufacture, 2010, 50(2): 156-164

Design of Application Platform for Wireless Sensor Networks Shuqian Wang1, a, Wei Zhang1,a , Zhangwei Zhu1,a , Chengquan Hu1,b , Lili He1,a 1College of Computer Science and Technology, Jilin University, Changchun 130012, China ahelili@jlu.edu.cn, bhucq@jlu.edu.cn Keywords: Application Platform, Wireless Sensor Networks, Socket, Browser/Server Structure Abstract.
The server uses Scalable Vector Graphics (SVG) to design browser page, which is a language for describing two-dimensional graphics and can use XML to define the graph, describing graph material by descriptive text formatting language.
[5] Jianzhong Li, Jinbao Li, Shengfei Shi, Concepts, Issues and Advance of Sensor Networks and Data Management of Sensor Networks [J], Journal of Software, 2003,14(10):1717-1727
[6] Xin Ke, Jian Shu, Yong Ren, Limin Sun, A Study of Wireless Sensor Network Evaluation Technology and Testbed [J], Computer Science, 2007,34(1):120-122,127
[7] Jiangwu Zhang, Lu Zhang, Ying Ying, Feng Gao, Research on Distance Measurement Bssed on RSSI of ZigBee [J], Chinese Journal of Sensors and Actuators, 2009,22(2),:285-288.

A Study of Inorganic Pore Characteristic in Lower Cambrian Niutitang Shale in Qiannan Depression Hong Xiao1, a, Shuangfang Lu2, b, Fangwen Chen2, c and Jianqing Li3, d 1College of Earth Sciences, Northeast Petroleum University, Daqing, Heilongjiang, 163318, China 2Research Institute of Unconventional Petroleum and Renewable energy, China University of Petroleum (East China), Qingdao, Shandong, 266580, China 3Research Institute of Petroleum Exploration and Development, East China Branch, SINOPEC, Nanjing, Jiangsu, 210011, China axhong528@126.com, blushuangfang@qq.com, ccfwdqpi@163.com, d284326561@qq.com Keywords: inorganic pore, organic-rich shale, scanning electron microscope(SEM), Niutitang formation, Qiannan depression Abstract.
In SEM photo, different material had different gray level and the gray level of pore is bigger than other substances by which we can identify the pore.
Advances in Earth Science.
Journal of Textile Research.
Journal of China Coal Society.

Experiment Experiment material.
International Journal of Photoenergy, 2013(22): 93-94
Environmental Science & Technology, 2015, 49 (7): 4536-4542
Journal of Shenzhen University Science and Engineering.2018, 35(6): 582-589

Journal of Sound and Vibration 2011; 330(15): 3766-3782
Journal of Physics 2012; (364): 1-11
Journal of Basic Science and Engineering 2011; 19(s): 210-218
Journal of Engineering for Gas Turbines and Power 2012; 134
Journal of Vibration, Measurement & Diagnosis 2012; 32(3): 498-501

Conforming to these needs, rubbers compound consisted of various materials such as vulcanizing agents, carbon black, accelerators, retardant, processing oils in different conditions.
Materials EPDM rubber type Keltan 5260Q and Keltan 6160D (Lanxess) with ethylene contents of 62/64%, diene of 2.3/1.2%, ML (1+4) at 1250C of 55/63 MU and oil contents of 0% correlatively, were used as the neat rubbers.
In order to be able to handle hot materials such as cement, clinker, sintered ore etc. the rubber materials needed to withstand harsh working environments for long serving time, the aging condition is chosen as 1500 C for 168 hours.
Acknowledgements This research is funded by Ministry of Science and Technology of Vietnam (MOST) under grant number KC.02.10/16-20.
Journal of Adhesion Science and Technology, Vol. 23, 913 – 930, 2009

Finally, the materials used are highly anisotropic.
Mechanical properties of materials used.
Distribution of materials along the blade.
Composite materials for wind power turbine blades.
Materials Research Department.

Kevlar-49/PTFE textile-reinforced polymer self-lubricating materials was selected as liner material. 9Cr18 has good machinability and wear resistance to counterface of PTFE liners, so it could be used as inner ring material.
Material of roller was alloyed tool steel 9CrSi.
Three-Dimensional Thermal Analysis of Spherical Plain Bearings with Self-Lubricating Fabric Liner, Advanced Materials Research, (2010)97-101
[8] W, J, Chen, Z, L, Liu, S, D, Zhang, et al, Study on Structure and Performance Optimization for Spherical Stern Bearing Based on ANSYS, Advanced Materials Research, (2013) 744
Hussain, Study on Optimization of the Circumferential and Axial Wavy Geometrical Configuration of Hydrodynamic Journal Bearing, Journal of Mechanical Science and Technology. 27 (2013) 3693-3701.

The Seismic Reinforcement Measures of Through Type Timber Frame Joint Based on The Earthquake Damage Survey Li Lingxu1,a,Tao Zhong1,b,Qin Liangbin1,c,Zhu Mo1,d,Tian Rui 2,e&Duan Xu2,e 1 Department of Civil Engineering, Faculty of Civil Engineering & Architecture, Kunming University of Science and Technology, Kunming 650500, China 2 Yunnan Kun Steel Structure Co, Ltd, Kunming Anning 650302, China a 53024871@qq.com, btsy0410@vip.sina.com, c277466201@qq.com, d17016802@qq.com, etr@ynkg.com Keywords: raw-soil and wooden structure, rural building, through type timber frame, timber joint, seismic reinforcement measure Abstract.
Significant differences between rural residential destruction due to construction location, structural types and different quality of materials used (1)buildings which built in the hillside and the peak have been more seriously damaged than ones in the flat terrain (2)Soil-wood structure, brick -wood house have been more seriously damaged than the brick-concrete ones.
(3)In remote rural, due to difficulties in transportation of materials, usually use local materials, choose local clay as wall materials.
And the immature soil wall can be mixed with artificial straw, straw, and some steel tie materials
[2] Ge Xue-li, Zhu Lixin, Jia Shu(2003),"The earthquake damage to housing and reconstruction seismic measures in Dayao county of Yunnan province" Earthquake Resistant Engineering　and Retrofitting,4:6-11 [3] Shi Wei-hua, Zhou Guangquan, Zhao Yongqing (2004),"2003 years the 6.2 magnitude earthquake in Dayao county of Yunnan province damage to housing features and analysis” Journal of Seismological Research,27(4):374-378 [4] Tao Zhong, Pan Xing-qing, Pan Wen(2008)"Mechanics Characteristics of Adobe of Rural Houses in Yunnan Province” Earthquake Resistant Engineering and Retrofitting,30(1):99-104 [5] Ge Xue-li,Zhu Li-xin,Wang Ya-Yong(2001)"The Damage of Town Construction and Seismic Technical Measures” Earthquake Resistant Engineering　and Retrofitting1:43-48 [6] Wang Ying,Shi Pei-jun,Wang Jing-ai(2005)"Impact of earthquake disaster on rural residenta: a case study on Dayao County of Yunnan Province” Journal of Natural Disasters,14(6):110-115 [7] Pan Xing-qing, Tao Zhong, Pan Yi(2007

Duplication error and repeated error analysis of micro-hole array fabrication by EMM Ying Liu1, Weiliang Zeng1,a, Zhenlong Wang1,2 1 Information Science Department, Harbin Normal University, Harbin, China 2 School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, China a zengwl1002@126.com Keywords: micro-hole array, EMM, duplication error, repeated error, machining gap Abstract.
Introduction In recent years, with the development of modern science toward miniaturization, the role of micromachining technology is also increasingly important.
Non-traditional machining (NTM) is the foreland of machine manufacture for its property of processing without macro-forces, so it develop rapidly and applicate more and more widely, especially in hard machining materials, complex shape, and thin wall parts[1].
The size of the gap influences the material elimination of workpiece greatly.
Munda: Journal of Materials Processing Technology, Vol.140 (2003),pp.287