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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.

The FPXI is based on the active-matrix array (AMA) technology, which serves as a pixelated substrate onto which various (existing or future) photoconductor materials can be deposited.
There are many materials that have greater linear attenuation and/or can be prepared as thicker films than stabilized a-Se, but they are usually deficient in other ways.
First it is unusually long, especially for defected polycrystalline and amorphous materials.
New York: Springer, March 22, 2017, Journal of Materials Science
[9] Positron-Beam Techniques for Materials Characterization.

With multimedia technology, audio, video and other computer-based files and materials can be edited and rearranged for specific instruction purpose to meet the diversified needs of instructors and learners.
Teachers can use the ready-made computer-aided teaching software or multimedia material library and choose the appropriate part in their own teaching; they can also use PowerPoint or some multi-media producing tools to make their own PowerPoint presentation or multimedia Courseware .
In order to ensure optimum outcome, some conditions need to be met: Firstly, the materials of appropriate level of difficulty, in which the unknown words make up a small proportion, should be chosen.
Acknowledgment This work was financially supported by the Hubei Humanities and social science project " The Construction of Discussion Style in the Classroom of English Majors under the Guidance of the Language Output Hypothesis" No:2013jytq535.
Journal of Experimental Psychology: Learning, Memory, & Cognition, (1987) 13(1),3-1

Experimental Materials.
The impact strength of samples was carried out according to ASTM D 256 in Pendulum impact testing (Zwick Material testing, August-Nagel-Str.11•D-89079 Ulm, Germany) at room temperature and tensile test was carried out according to ASTM D 638 at a crosshead speed of 50.8 mm/min with a universal tensile testing machine (LR 50k, Lloyd instruments, England).
The neat PLA fractured surface displayed a smooth and uniform surface which indicated brittle fracture behavior of polymer materials and no plastic deformation.
Muhuo: Journal of Fiber Bioengineering and Informatics Vol. 6 (2013), p. 85 [13] V.H.
Bu: Polymer Science, Series A Vol. 60 (2018), p. 499 [15] M.

Tanimoto 1 Institute of Solid State Physics RAS, Chernogolovka, Russia 2 Hiroshima University, Higashi Hiroshima, Japan 3 Institute for Molecular Science, Okazaki, Japan Keywords: the Portevin-Le Chatelier effect, magnetoplastic effect, high magnetic field, relaxation of internal stresses, ion clusters, spin-dependent processes Abstract.
Direct experimental evidence of the participation of spins in MPEs [9, 10] and thermodynamic considerations developed previously in spin chemistry [11] led to a conclusion that non-equilibrium conditions are necessary to be provided for the effect of a weak MF upon physical properties of materials.
The Portevin-Le Chatelier effect is observed in many commercially important alloys, leading to heterogeneity of plastic flow and early destruction of materials, so finding of methods for suppressing of the jump-like plastic deformation is one of the practical aims of the study of the effect.
Urusovskaya, Journal of Experimental and Theoretical Physics (JETP), 115, 3, 951 (1999).
Ngai, in: Mechanics and Mechanisms of Material Damping, ASTM STP 1304, 189 (1997)

We choose PDMS (Nusil CF19-2186 and Sylgard 186) for fabricating tests samples essentially for the following reasons: not required to pre-stretch the material and can be easily bonded (plasma O2) to micromachined silicon chips.
The total thickness of this nanocomposite is usually below 100 nm (energy and material dependent, Fig. 2).
This post-polymerization electrode fabrication technique will benefit from further fundamental material studies of the nanocomposite formed by ion implantation and specific DEAP actuator developments.
De Rossi, "Dielectric elastomer cylindrical actuators: electromechanical modelling and experimental evaluation," Materials Science and Engineering, vol.
[4] Pimpin, A., Suzuki, Y., and Kasagi, N., "Microelectrostrictive actuator with large out-of-plane deformation for flow-control application," Microelectromechanical Systems, Journal of 16(3), 753- 764 (2007)

Material and Methods The samples for bench scale experiments were collected in the industrial circuit.
Table 1 - Chemical composition of feed materials.
The feed materials and flotation products were analyzed for SiO2 and P2O5 by X-ray spectrometry.
Acknowledgements The authors are thankful for the Brazilian National Science Council - CNPq for the financial aid and the Bunge Fertilisers Brazil for technical support.
Somasundaran, International Journal of Mineral Processing, 38 (1993), p.177.