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Though it is obvious that stress distribution in the subsoil is changing with changing materials, those are usually not taken into account in the basic calculation methods [8].
The material properties are given in Table 1.
Soil Material Properties.
Canadian geotechnical journal, 1963. 1(1): p. 16-26
Canadian Geotechnical Journal, 1974. 11(2): p. 223-229

Belt conveyors are, in most cases, the most cost-effective solution to handle bulk material mass flows over short and medium conveying distances [3].
References [1] Krystyna Czaplicka: Eco-design of non-metallic layer composites with respect to conveyor Belts, Materials & Design, Vol.24 (2003), issue 2, pp111-120 [2] I.
Lester: The computational modelling of flame spread along a conveyor belt, Fire Safety Journal, vol.42(2007), issue 1, pp51-67 [3] HOU You-fu, MENG Qing-rui: Dynamic characteristics of conveyor belts, JOURNAL OF China University Of mining &Technology, Vol.18 (2008), issue 2, pp629-633 [4] Hou Youfu, Xie Fangwei, Huang Fei: Control strategy of disc braking systems for downward belt conveyors, Mining Science and Technology (China), Vol.21 (2011), issue 4, pp491-494 [5] Dariusz Mazurkiewicz: Analysis of the ageing impact on the strength of the adhesive sealed joints of conveyor belts, Journal of Materials Processing Technology, Vol.208 (2008), issue 2, pp477-485

The research of characteristic Agent used in cold bending centre sill Dazhi Li1,a, Guochang Li2,b and Lei Wang3,c 1QINYE HEAVY INDUSTRY CO.LTD, Qinhuangdao, Hebei Province, 066318, China 2School of Economics and Management, Hebei University of Science & Technology, Shijiazhuang, Hebei Province, 050018, China 3School of Economics and Management, Hebei University of Science & Technology, Shijiazhuang, Hebei Province, 050018, China alidzh2011@163.com, blgckdjg@163.com, cwl1204@163.com Corresponding Author: Guochang Li Keywords: Characteristic Agent, Characteristic finite strip, cold bending centre sill, roller Abstract: Cold-bent section is one kind economic section molding of low energy consumption and high benefit, it is widely applied in the construction, the astronautics, the light industry and so on many fields.
Introduction Cold curved steel is an application extensive economic material, for adapting the usage request of various customer, cold curved model steel have different geometrical section shape.
Fig. 1-1 LWW cold-steel beam According to the specific circumstances of the equipment, in order to avoid the strip local anomalies deformation and the material surface scratches caused by uneven distribution of the bending Angle , prevent rebound, ensure that the product's size accuracy.
Considering the materials rebound in the design, so in the 6th and 12th adopting the 2°of trace corner.
Acknowledgements This research is supported by National Science Funds of China (NO: 50375135), National Science Funds of HeBei Province (NO: E2011208014, F2007000643), International Cooperation Project in Science and Technology (No: 2006DFA72470), HeBei province Key Science and Technology Project (No: 11457202D-8) References [1] Guochang Li, Cai Lui, Guangmin Jia, The program model reseach of multiagent system’s intelligentization of spline finite strip m, journal of Hebei University of Science & Technology, 2005,3,pp.43-46.in Chinese

Utilization of the other oil sources such as vegetable or mineral oil is worthed to be a substitute material.
Plant raw materials are known to be a very rich source of natural antioxidants such as phenolic compounds, carotenoids, and tocopherols [12].
Indian Journal of Chemical Technology, Vol. 21, pp. 7-13, (2014)
Journal- Society of Leather Technologists and Chemists.
[18] Covington, A.D., Tanning Chemistry: The Science of Leather.

Because the piezoelectric thin film materials are supposed to be under the edge cloth of the court, so the large-scale reality production is not easy to achieve. 
Through the ball in contact with the edge of the board of piezoelectric materials, the piezoelectric material will have a certain mechanical pressure, and we will know the point of contact with the ball position is inside or outside the line by electrical signals generated by piezoelectric material.
Piezoelectric Thin Film’s Manufacture, Structure and Application, Science Press, 2002 [2] Dongsheng Zhao.
Design and Experimental Study on PZT Piezoelectric Thin-film Silicon-based Micro-sensor, Journal of Semiconductors [J].
Sensor Technology Science [J], 1998

The Thickness of an Aircraft Wing Skins Optimization Based on ABAQUS Zhengran Yang1,a, Yi Jiang2,b, Cong Huang3,c 1Armament Science and Technology,Beijing Institute of Technology, Beijing, 100081, China 2Armament Science and Technology,Beijing Institute of Technology, Beijing, 100081, China 3Armament Science and Technology,Beijing Institute of Technology, Beijing, 100081, China aemail: johnny_youngzr@qq.com,bemail: 1435571670@qq.com,cemail: 1062470996@qq.com Keywords: ABAQUS; Finite Element Analysis; Optimization of skin thickness Abstract.
Skin with aluminum metal material, the wing skeleton with steel materials.
At higher frequencies, due to the re-arrangement of the wing through the material, the overall stiffness of the wing becomes small, the deformation of the wing skin and the rib main vibration.
It is noteworthy that in the paper the design of the wing size and materials are some defects, leading to the modal frequencies larger wing, inconsistent with the actual situation.
Journal of Mechanical Design 1994, 166:997-1004 [3]N.M.

Numerical simulation of flow fluid in elbow pipe based on FLUENT and the establishment of the pressure model Xiaoyang Lu1,a, Xinguang Li2,b, Jinming Liu3,c , Xiaoli Lu4,d, Hongliang Zhu2,Yong Zhou2 1Institute of Engineering Mechanics, ShanDong JianZhu University, Jinan 250101, China 2Institute of Materials Science and Engineering, ShanDong JianZhu University 250101, China 3College of Information Technology, Jilin Technology College of Electronic Informatrion, Jilin 132021, China 4College of Electrical Information Engineering,Zhengzhou University of Light Industry,450002,China a luxy5504@163.com, b xiaoli_518@126.com, c ljm8501@163.com, d lxl@zzuli.edu.cn Key words: 90°elbow pipe; FLUENT numerical simulation; dimensionless analysis; pressure model Abstract.
Acknowledgements This project was financially supported by the National Science Foundation of China (11272188) and the Natural Science Foundation of Shandong Province (ZR2010AM016).
Chinese Journal of Ship Research, Vol. 3(2008) pp 37-47
Advanced Materials Research.
Advanced Materials Research.

Acknowledgment The authors want to thank the R&D and Laboratory Department of Ahwaz Pipe Mill Company for the materials, processes and tests.
Lee, “Inoculated acicular ferrite microstructure and mechanical properties,” Materials Science and Engineering A, Vol. 319-321, 2001, pp. 326-331
Yang, “Challenge of mechanical properties of an acicular ferrite pipeline steel,” Materials Science and Engineering A, Vol. 431, 2006, pp. 41-52
M Orain, “Morphological aspects of martensite-austenite constituents in intercritical and coarse grain heat affected zones of structural steels,” Materials Science and Engineering A, Vol. 385, 2004, pp. 352-358
Fang, “Materialometrical approach of predicting the austenite formation temperatures,” Materials Science and Engineering A, Vol. 419, 2006, pp. 276-282

As high-grade refractories raw material,kyanite is widely used and the market demand is increasingly greater.
Kyanite mainly used for metallurgy industry refractory materials.
Test pH = 4.0, LJ-2 as the collector developed independently by the Sinochem Geological Mining Geological Institute, which has good selectivity, rich foam and wide sources of the raw materials, and it is easy to produce and prepare with no toxicity and peculiar smell of low price that its an excellent flotation of collector of kynaite in acid medium.
References [1] Non-metallic Mineral Processing and Utilization [M], Beijing: Science Press .1992(In Chinese) [2] The Mineral Processing Design Manual [M], Beijing: Metallurgical Press. 1988(In Chinese) [3] Tiebing Yue, Jincheng Cao, Lanliang Niu, Yan Wang.
Journal of Kunming College of Metallurgy, 2000, 16 (2) : 44-47(In Chinese) [5] Yanni Wu, Xiao Ding and Lizhen Yang.

REFERENCE [1]Y.Nakata, O.Yamamoto, K.Shimizu: Materials Trans.
JIM Vol 5(1993), p.429 [2]M.Ahlers: Materials Science and Engineering A Vol 349(2003), p. 120 [3]C.
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