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Non-metallic mineral products, chemical materials and chemical products manufacturing, agro-food processing industry, textile and garments and plastic products are all among the ones that have the largest number.
Acknowledgment This paper is funded by National Natural Science Foundation of China (70963004) and the research projects of Natural and Social Science Foundation of Jiangxi References [1] Lu Rong.
“Economic Space: Theory and Applications”[J].Quarterly Journal of Economies, 1950(2):25-26 [6] Porter, Michael E.The Competitive Advantage of Nation, [M].New York Free Press, 1990 [7] Porter, Michael E.

Introduction Optimization problems are one of the main problem forms in the disciplines of engineering application and science research, among which, optimization problems with only one objective function are called single-objective ones, the ones with more than one objective function needed to be dealt with simultaneously are called multi-Objective optimization problems (MOPs).
Through the study of natural defense mechanism against the external materials, AIS provides evolutionary learning mechanisms such as Unsupervised learning, self-organizationand memory, which, combined with some advantages of the system such as classifier, Neural network and machine reasoning, make the system powerful in the ability of information processing.
References [1] Deb K.MultI_0bjective Optimization Using Evolutionary Algorithms[M]//Wiley John&Sons.Ltd UK,2001 [2] Pareto V.Course Economic Politique[M].Lausanne:Rouge,Vo1.I and 1I,1896 [3] LI Ming-song, Zhang, Fenfen, Zeng, Puhua.A complex-genetic algorithm for solving constrained optimization problems [J].Computer Simulation,2011,28(6):259—261,370 [4] GONG Mao-Guo, JIAO Li-Cheng, YANG Dong-Dong, MA Wen-Ping.Research on Evolutionary Multi-Objective Optimization Algorithms [J].Journal of Software,2009,2:271—289 [5] Mo Hong-wei, Zuo Xing-quan.Artificial Immune System.Beijing:Science Press,2009 [6] Castro L N D,Zuben F J V.Artificial Immune Systems,Part l:Basic Theory and Applications[R].Campinas,Brazil:School ofCo mputing and Electrical Engineering,State University of Campinas,December 1999

(1) Asphalt indents along the surface of the sand (2) Formation of Asphalt drops (3) Separation of asphalt bubbles from the surface of oil sands Fig. 1 Mechanism of oil displacement of compound oil displacement agent Materials and Equipment.
M300671 Sealed settlement pipe, manufactured by Beijing Great Western Science and Technology Co, Ltd.; HW-4B Temperature equipment, manufactured by Nantong Hua xing petroleum equipment Co, Ltd.; Low-frequency resonant wave laboratory device (homemade); TG16-W Centrifugal filter, manufactured by Changsha Wei Er Kang Xiang Ying Centrifuge Co, Ltd.
Engineering and Mining Journal, vol. 203 (2002) No.8, p.14 [4] Hengjin Li, Yuangang Xu and Shengbiao Li: Oil-Gasfield Surface Engineering , vol. 28 (2009) No.8, p.79(chinese) [5] M.
[6] Xiao Pang, Gang Zhang and Liuren Li: Chemical Engineering of Oil and Gas , vol. 38 (2009) No.1, p.85 (chinese) [7] Mingle Sheng and Jing Li: Environmental Pollution and Control , vol. 30 (2008) No.7, p.21(chinese) [8] Dong Xu, Chenfu Mei and Yi Liu: Advances in Fine Petrochemicals, vol. 7 (2005) No.1, p.4(chinese) [9] Xiuqiang Xu, Hongyan Wang and Zhibin Sheng: Science & Technology in Chemical Industry , vol. 16 (2008) No.4, p.1(chinese)

Introduction Low-rank coals (brown coal and lignite) are main materials for coal gasification and liquefaction.
Coal structure and its reactivity, Science press, Beijing, China(2002).
Science and Technolog y Literature Press, Beijing, China (1994).
Journal of Analytical and Applied Pyrolysis, Vol. 4(1998), p.181—192．

The Study of Soil Arsenic Pollution in the Slag Field of Plateau Lake Yangzonghai Lake Area Farong Li1,a, Jiangtao Wang1,b, Jun Huang1,c, Yunjin Chen1,d, Dong Yu1,e and Xi Liu2,f 1Kunming Environmental Monitoring Center, Xishan District, Kunming 650228, China 2School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China alifa1100@126.com, bwangjiangtao0906@163.com, chuangj1122@163.com, dchenjy0011@163.com, eyudong98@163.com, flucia3820@gmail.com Keywords: Plateau lake, Soil arsenic pollution, Pollution characteristic, Detection comparison.
Materials and Methods The Investigation Area.
He and G.L.Zhang: Journal of Henan Agricultural University Vol.39 (2005), p. 1483.
Ning: Environmental Protection Science Vol.36 (2010), p. 35.

Study on the Tribological Mechanism of Ultrafine SiO2/MoS2 Powders in Complex Calcium Sulfonate Grease Borui Yang1,a, Fangxia Zhao2,b*, PengPeng Wang3,c, Zhenzhong Zhang4,d 1-4Nanjing Tech University, China (College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China) a1246549485@qq.com, bfangxiazhao@126.com, c735281952@qq.com, dnjutzhangzz@126.com Corresponding author: Fangxia Zhao, Affiliation: Nanjing Tech University, E-mail Address: fangxiazhao@126.com Keywords: nano-SiO2; ultrafine MoS2; commercial NLGI Grade No.2 complex calcium sulfonate grease; microstructure of wear spot; tribological mechanism Abstract.
Introduction The development and promotion of nanomaterials has gained more attention from researchers all over the world due to its multiple characteristics of inorganic and organic materials [1~6].
Ultrafine MoS2 powder is a layered material with a three-sided polyhedral structure [10], which is easy to enter the friction surface [11].
Experimental Materials Commercial NLGI Grade No.2 complex calcium sulfonate grease（here we called base grease）was produced by Total Oil Co., Ltd; The average primary particle diameter 15nm of nano-SiO2 and 1μm of MoS2 powders, were all obtained from (China) Nanjing Haitai Nano Materials Co., Ltd.
Journal of Nanjing Normal University (Natural Science Edition). 34, 7-12(2011)

ARs are usually made of non-natural materials such as concrete, wood, plastic, steel and many other materials [7].
Currently, concrete is most the commonly employed ingredient for constructing ARs; it has also been used in combination with other reef materials such as steel, plastic, tires [8].
Besides that, ARs can be constructed from natural stones and rocks, where the latter are constructed with combination of wide-ranging materials including canvas, anchor blocks, and others.
John, “Coral recruitment and early benthic community development on several materials used in the construction of artificial reefs and breakwaters”, J.
Zhang, et al., “Validation and comparison between wind tunnel experiments and numerical simulation of flow field around artificial reefs”, Journal of Fishery Sciences of China, 16 (2009) 365-371

Coating material reduces the diffusion and chemical reaction between the props and the work piece, thereby reducing wear and tear, a better solution to the conflict between the tool strength and toughness.
At present, only relying on the advanced cooling technology, the development of new high-temperature alloy materials and improvement of turbine blade manufacturing process is difficult to meet the industrial demand in a short period, and therefore strive to improve the pitting corrosion resistance of advanced turbine blade is essential .
Vacuum Science and Technology, 1997, 17(5): 351-354 [6] Mukong Wang, Ruixin Ma, Wei Lin.
The research progress of TiAlN hard film / coating material.
Journal of Chinese Electron Microscopy Society, 2004, 23(3): 252-256

B Al-Amoudi3,c 1Center for Applied Physical Sciences, King Fahd University of Petroleum and Minerals, Dhahran-31261, Saudi Arabia. 2Department of Physics, King Fahd University of Petroleum and Minerals, Dhahran-31261, Saudi Arabia. 3Center for Engineering Research, King Fahd University of Petroleum and Minerals, Dhahran-31261, Saudi Arabia.
The KFUPM accelerator-based PGNAA facility [7], which is a thermal neutron capture based PGNAA setup, was designed to analyze large samples of bulk material.
The setup consists of a rectangular moderator, which can be used to analyze 14 cm long cylindrical samples with a diameter up to 25 cm [7] The size of the sample, which can be used with the KFUPM moderator, depends upon the sample material and is to be calculated using the Monte Carlo simulation [7].
The 2.22 MeV thermal neutron capture peak from hydrogen in the moderator material is prominent in the spectrum.
Journal of Materials in Civil Engineering, Vol. 8, (1996) pp.63-69

Introduction Recent years have brought an increased emphasis on the durability of building materials, and concrete is no exception.
If a concrete structure or its part comes in contact with water (precast roadway panels, railway ties, water reservoirs, etc.), the material’s pore structure will absorb it.
Acknowledgement This paper has been written as a part of project No. 19-22708S, supported by the GAČR - Czech Science Foundation and project No.
Turkiewicz, Properties and durability of coarse igneous rock aggregates and concretes, Construction and Building Materials, 126 (2016) 119-129
Yi, Freeze-Thaw Durability of Air-Entrained Concrete, The Scientific World Journal, 2013 (2013) 1-6