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Image color from red to blue indicates the material permittivity increasing, the red for the maximum permittivity, and blue for the minimum permittivity.
Acknowledgements This work was financially supported by the Science & Technology Research & Development Projects in Hebei Province (12212001) and Natural Science Foundation of China (61102096).
Zhu: Journal of Tianjin University, Vol. 36 (2003) No.3, p. 307 (In Chinese) [3] L.F.
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Hua: The 6th International Conference on Measurement and Control of Granular Materials, (Tokyo, Japan, 2003), Vol. 1, p.309

Study on the Microstructures and Properties of the Lead-free Easy-cutting BiAl-brass Li Lei1,a , Chen Yuqi2,b, Li Qiang3,c and Huang Guojie4,d 1School of Materials Science and Engineering, Henan Poytechnic University, Jiaozuo, 454000, China 2State Key Laboratory for Fabrication and Processing of Nonferrous Metals, Beijing General Research Institute for Nonferrous Metals, Beijing 100088, China aleili8@gmail.com, bchyuqipy@163.com,cliqiang@hpu.edu.cn,dhuangguojie@grinm.com Keywords: lead-free brass, easy-cutting, hot-working property, machinability Abstract.
Acknowledgements The authors are grateful for support from Key Research Project of Henan, Science and Technology Department of China (No. 092102210368) and Natural Science Research Grant of Henan Education Department of China (No. 2008A460009) and Funds of Introduction of Talents of Henan Polytechnic University (No.
Ryan, F.B.Taylor: Journal of the American Water Works Association Vol.75 (1983), p.92
Yoshikawa: Journal of the Japan Research Institute for Advanced Copper-Base Material and Technologies Vol. 41, (2002) p.97

Introduction Tourism resource is the material basis and prerequisite of tourism industry whose survival and development rely on tourism resources, and geological landscape is a special kind of natural tourism resources.
After applied to tourism resources investigation, remote sensing technology can not only save manpower, material resources and financial resources, improve the speed and quality of investigation, but also can strengthen macro grasp of regional natural resources and understanding of its formation.
The number of researchers with background of computer science, information science, tourism management, mathematics is increasing besides the researchers with geological background.
Laura: Environmental Management Vol. 5 (2004), p. 748 [3] Tim Bahaire and Martin Elliott-White: Journal of Sustainable Tourism Vol. 2 (1992), p. 159 [4] P.W.
(In Chinese) [11] Yibin Zhang and Jiahui Qu: Remote Sensing Technology and Application, Vol.1 (1997), p.76 (In Chinese) [12] Baohua Huang, Fusheng Guo and Yongbiao Jiang: Journal of Mountain Science Vol.4 (2010), p.201 (In Chinese) [13] Yongbiao Jiang, Fusheng Guo and Zhonghua Hu: A Study on the Features of Danxia Landform and Its Landscape Types in Xinjiang Basin Vol.4 (2010), p.43 (In Chinese)

Fermi 6, 50125, Florence, Italy 2Department of Physics, College of Science, University of Baghdad, Baghdad, Iraq 3Nassiriya Nanotechnology Research Laboratory, Science College,Thi-Qar University, Nassiriya 56789, Iraq akais.al-naimee@ino.it, balhusseini_2007@yahoo.com, cameen_2all@yahoo.com, dsora.abdalah@ino.it, ericcardo.meucci@ino.it, ftito.arecchi@ino.it Keywords: Quantum Dot, filtered optical feedback, chaos.
In Eq. (5.b) the material properties of the QD-LED are described by the linewidth enhancement factor α, which is the ratio between the carrier injection and the photon non-radiative decay rates, and the dimensionless pump parameter δo.
Al-Khursan, "Modeling of Synchronization in Quantum Dot Semiconductor Lasers", Optics & Laser Technology, 48http://www.sciencedirect.com/science/journal/00303992/48/supp/C, 453–460 (2013)
Al-Khursan, "Synchronization in Quantum Dot Lasers with Optoelectronic Feedback Circuit", Journal of Electronic Materials, 44, 953-966 (2015)
Scholl, "Complex Dynamics of Semiconductor Quantum Dot Lasers Subject to Delayed Optical Feedback", International Journal of Bifurcation and Chaos22, 1250246 (2012)

Manuel Castells [3] has clearly proposed that the space of flows is the material organization of time-sharing social practices that work through flows, in the meeting of the "new urbanization" held at Princeton University.
Journal of Northeast Normal University (Philosophy and Social Sciences),2010, Vol. 06, pp.22-26.
Materials for an exploratory theory of the network society [J].
British Journal of Sociology, 2000, vol.51, No.01, pp. 5-24
Shenzhen University Journal (Humanities & Social Sciences), 2009, No.04, pp. 47-52.

Experimental Raw materials p-Cymene prepared in laboratory has the mass fraction of 99.5 % [10-14].
Hirashima: The Journal of Organic Chemistry Vol. 50(4) (1985), p. 539 [4] F.
Cai: Journal of Xiamen University (Natural Science) (In Chinese) Vol. 45(6) (2006), p. 805 [8] S.
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Liu: Advanced Material Research Vol. 236-238 (2011), p. 27 [14] L.

Lee, etc. [10] optimized the material removal rate(MRR) for the silicon carbide grinding with PSO, and found that the performance of PSO was better than that of GA for this case.
Acknowledgements This research is supported by the National Natural Science Foundation of China (NSFC) under Grant No. 51235005 and National Key Technology R&D Program No.2012BAF13B07 and No. 2012BAF13B10.
Mills, Highspeed grinding with CBN grinding wheels applications and future technology, Journal of Materials Processing Technology, 110(1) (2001) 78-88
[5] Tomizuka M, Zero Phase Error Tracking Algorithm for Digital Control, Journal of Dynamical Systems, Measurement and Control, 109(1987) 65-68
Sachidanandam, A multi-objective genetic algorithm (GA) approach for optimizationof surface grinding operations, International Journal of Machine Tools and Manufacture, 42, (2002) 1327-1334

Article methodology is in numerical calculation using CAD and an analytical method used in strength of materials.
Methods Research methodology is in numerical calculation using CAD software and an analytical method used in strength of materials.
The analytical solution is based on principles of mechanics of composite materials with soft and rigid layers.
Strength of Materials, 40(5), 518-524.
Strength of Materials, 38(4), 392-397.

Experimental Design Materials and Welding Conditions The welding experiments were performed using SM570-TMC steel comprised of two plates with the dimensions of 370 x 150 x 16 mm3.
Gao, Effect of welding heat input on microstructures and toughness in simulated CGHAZ of V-N high strength steel, Materials Science and Eng.
Dai, Experimental investigation on mechanical behaviors of TMCP high strength steel, Construction and Building Materials 200: 664-680, 2019
Siradj, Investigations on Impact Toughness and Microstructure Characteristics of Gas Metal Arc Welded HY-80 Steel Plate, Materials Science Forum Vol.964, pp. 68-79, 2019
Li, Effects of heat input on microstructure and fracture toughness of simulated coarse-grained heat-affected zone for HSLA steels, Materials Characterization 155: 109818, 2019.

Materials 425 Protection, 2, 8-17
Journal of Materials Engineering and Performance, 2008
Materials Science and Engineering A, 2007,458: 281-289
Journal of Materials Processing Technology, 2011
Materials and Design, 2003, 24: 561–575