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The Research on Rational Proration to Low Yield and Pressure Gas Well in Tight Gas Reservoir Deng Sheng Lei 1, a, Zhi Lin Qi 2,b 1 Chongqing University of science & technology, ChongQing, China 2 Chongqing University of science & technology, ChongQing, China aLeids@163.com, bQizhilin76@sina.com Keywords: tight gas reservoir; low yield and low pressure gas wells; rational proration; optimization of working system Abstract.
Base on the seepage law of tight gas reservoir, using different method of rational proration, through classifying the low yield and low pressure gas wells, this paper develop a method of rational proration of being fit for low yield and low pressure gas wells in tight gas reservoir The analysis of normal rational proration method There are many method of normal rational proration, including gas production curve method, optimization proration method, material balanced method, production history overlay method, numerical model method and thumb rule, etc There are different benefits and disadvantages in above-mentioned rational proration methods.
The reservoir pressure used in the material balanced method is average value of whole gas reservoir, which neglects the difference of different region in the whole gas reservoir caused by aeolotropism of physical property in gas reservoir and of cumulative gas production.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (50974142).
Journal of Southwest Petroleum Institute, 2000, 24(2):131-133

Material and method 2.1.
The octagonal-ring material used in this paper is 40Cr, whose σs value is 785MPa.
Acknowledgements This work is sponsored by the National Science and Technology Support Project (No. 2011BAD20B09-13) and the science and technology project of Changchun city (Contract No. 2011106).
Journal of Nanjing Forestry University (Natural Sciences Edition). 32(2008.4) 121-124

Stability analysis of Cd Contaminated Soil in Dabizhuang Jingyi Huang1,2,a, Hong Xu3,b, Zhirong Liu1,c,Ying Zhang1,d,Xiangdong Bai1,e 1Department of Earthquake Science, Institute of Disaster Prevention, Sanhe, 065201, China 2Institute of Engineering Mechanics, China Seismological Bureau, Harbin, 150080, China 3China University of Geosciences in Beijing, Beijing, 100083, China ablue_06@163.com, bhongxu88@126.com, c13069615@qq.com, d31557099@qq.com, e34603246@qq.com Keywords: Cd contamination, Soil, Species, Stability analysis, Da Bizhuang Abstract.
Materials and methods Soil samples.
Journal of Shanghai University (English Edition),2007,11(4):415-425
J China Environmental Science, 2010, 30(4):487-492.
China Environmental Science Press, 2006.

Durability Design of Tunnel Lining Structures Based on Approximate Probability Haiming Chen1,2,a, Xuan Wang2,b and Shilong Yan1,3,c 1Mineral Engineering Postdoctoral Mobile Research Station, Anhui University of Science and Technology, Shungeng Road 168#, Huainan, Anhui, 232001 China 2School of Civil Engineering and Architecture, Anhui University of Science and Technology, Shungeng Road 168#, Huainan, Anhui, 232001 China 3School of Chemical Engineering, Anhui University of Science and Technology, Shungeng Road 168#, Huainan, Anhui, 232001 China achm818@163.com, b583219129@qq.com, cslyan@aust.edu.cn Keywords: Durability Design, Approximate Probability, Tunnel Lining Structures.
Journal of Architecture and Civil Engineering Vol. 25(1) (2008), p.1-9, In Chinese [3] Xi'an University of Architecture and Technology: Standard for durability assessment of concrete structures (CECS 220:2007), In Chinese (China Architecture & Building Press, Beijing 2007)
Advanced Materials Research Vols. 163-167 (2011) pp 3376-3379 [7] Haiming Chen: Research on Some Key Technical Problems of Durability Design of River-crossing Tunnel Lining Structures, In Chinese (Tongji University Doctor Dissertation, Shanghai 2009)

Considering the mechanical characteristics and the cost of the micro-gripper, aluminum alloy 7075 is used as the material of the micro-gripper.
Acknowledgment This study was supported by the National Natural Science Foundation (No. 51175271), Scientific Research Fund of Zhejiang Provincial Education Department (No.
Z200805077) and Science Research Fund of Ningbo Scientific and Technology Bureau (No.
Ando, in: Proceedings of 2000 International Symposium on Micromechatronics and Human Science, (2000), pp. 157-162
Low: Journal of Micromechanics and Micro engineering, Vol. 14(2004), pp. 969-974

Materials Five types of foaming agent, including amine LH-1 from Jinan Nuowei Chemical Company，China, CS-1 synthesized in laboratory, CS-2 synthesized in laboratory, JS-1 from Henan Daochun Chemical Company, China, FL10 from Hunan Yose Chenzhou Chemical Company, China, were used in screening tests to foam.
Acknowledgments It is a project supported by National Natural Science Foundation of China (No.51174221), Science Funds for Distinguished Young Scholar of Shandong Province (No.JQ201013), and Program for New Century Excellent Talents in University (No. 20110226).
Journal of Southwest Petroleum University(Science & Technology Edition) Vol. 19(1997), p. 35 [6] Guo Zhiwei, Xu Changxue, Lu yao, Zhou Lizhuang: Foamability and stability of foam and means of evaluating Vol. 127(2006), p. 51 [7] Sheng Qiang, Guo Ping, Cheng Jing, Du Jianfen, Wang Yuhua: Research on visual characteristics of foam in porous media.

Acknowledgement In this paper, the research was sponsored by Project development of science and technology in Department of education of Shandong Province (No.
[3]Guixin Zhao Research of IPv6 evolution technology[J], Applied Mechanics and Materials, v 423-426, p 2729-2732, 2013
Journal of Guangxi University (Natural Science) 2011
[9] Lishen Yang,Yange Chen.Research of IPv6 transition technology and itsapplication in campus network.2008 Proceeding of Information Technology andEnvironmental System Sciences(ITESS 2008), Pubishing House of Electronics Industry, 2008,273-277

Material and methods Data.
Metz: Journal of the American College of Radiology Vol. 3 (2006), p. 413 [6] I.
Ohno-Machado: Journal of Biomedical Informatics Vol. 38 (2005), p. 404 [13] J.A.
Tenenbaum: Developmental Science Vol. 10 (2007), p. 281 [17] F.V.
Swets: Science Vol. 240 (1988), p. 1285

Its basic structure is an electroluminescent semiconductor material,in use of special conductive semiconductor material way through electroluminescence phenomenon,it could control semiconductor light-emitting diode display, and relying on its bright lights off to show character, text, graphics, images,video, video signals and some other information.
Fig.3 Shadowless lamp Conclusions In summary, electrical insulating materials has been widely used in machinery, electronics, chemicals, building materials and other fields , especially in the application of electronic devices technology continue to be updated,and research in this area should be continued to be further more.
AL doping concentration on release of resistive material properties of ZnO ceramics[J].
Journal of Luminescence, 2014(35)
Beijing:Science Press,2011.

Analysis on the nondestructive testing method of concrete strength Junbin Gu Architecture and Civil Engineering School, Inner Mongolia University of Science and technology, Baotou, 014010, China gu613@163.com Keyword: concrete, beam, strength, the ultrasonic-rebound method Abstract.
As we know,ultrasonic and rebound method are based on the relations of stress strain behavior and strength about material[1,2], but ultrasonic speed mainly reflect the elastic properties of material, and it can through the material, so reflect some information from the material internal structure.The rebound method reflects the elastic properties of material, and also reflects the plastic properties of materials in certain extent, but it can exactly reflect the state of concrete surface layer about 3cm.Therefore, comprehensive the value of ultrasonic and rebound can reflect the elasticity and plasticity of concrete; reflect the state of surface layer and the internal structure, so exactly reflect the strength of concrete.On the other hand, Practice proved that the sound velocity C and rebound value N can eliminate many original factors of the R-N and R-C relations after reasonable comprehensive.Such as varieties of cement, the water content of specimens and the carbonization effect, which
Research and analysis of measurement strength method The design of concrete mixture ratio usually adopt the method of calculation combined with experiment.According to the designed strength requirements of structure, material conditions and construction conditions to calculate the theory mixture[4].
[2]Junbin GU, Lei WANG.The ultrasonic-rebound synthetic method of concrete[J].Journal of Datong Vocational College,2008,24(3):59-61
Nondestructive measurement of concrete strength gain by an ultrasonic wave reflection method[J]. materials and structures. 1999, 25:261-268