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Acknowledgements This project is supported by National Natural Science Foundation of China (No50975191) and Science Foundation of Taiyuan University of Technology.
Liu: Journal of Mechanical Transmission, Vol.26 (2) (2002), p.67 (In Chinese) [2] E.
Yang: Journal of Key Engineering Materials, Vol.375-376 (2008), p.226 [4] M.D.

Some synthesic methods of sildenafil are development on the basis of above routes, by replacing similar starting materials or improving procedures.
Science, art and drug discovery: a personal perspective[J].
Clinical Science, 2000, 99,255-260
Chinese Journal of Synthetic Chemistry，2001，9（6）：443-556
Chinese Journal of Pharmaceuticals，2010，41（12）：948-950

Ibaeva,2 1 Institute of Physics, Daghestan Scientific Center of Russian Academy of Sciences, Yaragskogo st. 94, Makhachkala, Russia 2 Daghestan State University, ul.
In the nature of ordering the magnetic nanoparticles can be divided into same classes as bulk materials (ferromagnetic, antiferromagnetics, etc.).
Acknowledgements The study was supported by The Ministry of education and science of Russia, project 14.B37.21.1092, the Russian Foundation for Basic Research (project nos.12_02_96504, 13-02-00220 and 12_02_31428.
Ibaev, Journal of Experimental and Theoretical Physics. 113 (2011) 106
Ibaev, Journal of Experimental and Theoretical Physics. 116 (2013) 266.

Acknowledgments The paper is supported by the projects of Wuhan Science and Technology Plans of China (Granted No: 2013010501010126).
Applied Mechanics and Materials, 2013, pp, 522-526
Journal of Wuhan University of Technology, 2008, 3(30): 133- 135
Journal of Wuhan University of Technology, 2010, 32(23): 93- 94
Proceedings of 2009 4th International Conference on Computer Science & Education, 2009, pp. 560-563.

Demagnetizing Experiment of Magnetism-Concealed Tank based on Smart Materials Ying Huang Department of Basic Sciences, Academy of Armored Force Engineering , Beijing 100072, China huangying@guigu.org Keywords: Magnetism-Concealed, Tank, Demagnetizing Effects, Experiment Design Abstract.
Demagnetizing principles about the Magnetism-Concealed Tank Main Demagnetizing Principles Since tanks or armored vehicles are made mainly by steel which belongs to intensive magnetism material, they are magnetized in the earth magnetic field to form specific magnetic field whether they are put into fight or waited for orders in modern electromagnetism battlefield.
It is shown in fig. 1.3 for iron material, setting the magnetic induction intensity on a certain gauging point to be some value marked as point A at the initial state, it decreases gradually along the curve AC, really not declines sharply along the curve AO to 0 when the reverse magnetic field intensityproduced by the degaussing electric current acts on the outer space around the tank for a little while.
Acknowledgements This article was funded by the Innovation Fund of the Armored Force Engineering Institute in 2010 project, project number: 2008 L15 Reference [1] LIU Shang (2005) Electromagnetic Environmental Effects of weaponry and its development trend Journal of the Academy of Equipment Command & Technology 1(8):112-115 [2] Huang Ying, Li Hua, Qi Yinghua (2009) coaxial uniform degaussing coil tanks magnetic field effect of the numerical simulation.
Central China Normal University (Natural Science) 3(2):76-79 [4] The Rao Feibiao (2010) ARMORED FORCE, Bear He in, the basic combat unit as a whole digitized armored equipment performance testing requirements analysis.

The slop surface is quaternary residual material.
“Landslide Prevention Science and Technology”.
[2] Qancai Wang, Journal of Geological Hazard And Control, Vol. 1, issue 3, 32-38, 1990.
Chinese Journal of Rock Mechanics and Engineering.
Chinese Journal of Underground Space and Engineering.

Material failure model adopts strain hardening model or strain softening model, calculation parameters are shown in table 3.3.
Acknowledgements Foundation item: Project (51074003/51074005) supported by the National Natural Science Foundation of China; Co-funding projects (51174255) supported by the National Natural Science Foundation of China and Shenhua Group Corp References [1] Jiang Y, Esaki T, Theoretical and experimental study on the stability of deep underground opening [J].
Chinese journal of rock mechanics and engineering, 2006, 25(10).
Beijing: Science Press, 2002.
Chinese Journal of Rock Mechanics and Engineering, 2009 (12).

Materials and Methods 2.1 Study area The Skhirate Wadi (a tributary of the Ifrane Wadi), drains 65.4 km2 of the eastern part of the central Moroccan plateau (Fig. 1).
Bathurst, Measuring and modelling bed load transport in channels with coarse bed materials, in Richards, K.S.
Emmett, Bed load measurements, East Fork River, Wyoming, Proceedings of the National Academy of Science USA. 73 (1976) 1000-1004
Journal of hydraulic engineering. 142 (2016c) 1–11
Journal of Geophysical Research: Earth Surface. 122 (2017) 528-545

Introduction In order to realize better safety, environment protection and energy-saving, urgent need for weight-saving structural materials have been put forward by automobile industry.
The mechanical properties of sheet materials will change with the temperature.
M,Testing and evaluation of material data for analysis of forming and hardening of boron steel components, Modelling Simulation of Material Science Engineering.,10(2002), p.277-294 [4] M.
Lecher, Investigation of the thermo-mechanical properties of hot stamping steels, Journal of Materials Processing Technology ,177(2006), p. 452-455
[5] Zhongwen Xing, Jun Bao and Yuying Yang, Numerical simulation of hot stamping of quenchable boron steel, Materials Science and Engineering A, 499 (2009), 1-2, p.28-31

The present work deals with the simulation investigation of chip formation in ultrasonically assisted grinding (UAG) of SiC ceramics with single diamond abrasive grain in order to reveal the material removal mechanism in UAG of SiC materials.
Introduction In recent years, ceramic materials have been widely used in various engineering applications such as the automotive, aerospace, electrical and electronics industries etc. [1].
Especially, silicon carbide (SiC) materials exhibit good material properties such as high-temperature hardness, thermal shock resistance and chemical stability, which are superior to those of other materials, these properties can be utilized in a variety of applications such as high-temperature and high-pressure applications, for example, in the optical manufacturing industry, SiC ceramic is a perfect material for molding dies used for hot-press molding of glass lenses [2].
Lucy, A numerical approach to the testing of the fission hypothesis, The Astronomical Journal 82 (1977) 1013–1024
[10] Johnson GR, etc., An improved computational constitutive model for brittle materials, High pressure science and technology.