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Beijing: Science press,1998
Journal of hydraulic,2003(03)
Hydrogeology Journal, 1999,7(2)
Beijing: Science press,1998
Beijing: Science press,1999

Beijing: Science Press,1998
Journal of Hydraulic,2003(03)
Hydrogeology Journal, 1999,7(2)
Beijing: Science Press,1998
Beijing: Science Press,1999

Acknowledgements This work was financially supported by National Natural Science Foundation of China (50773032, 51073122), Doctoral Fund of the Ministry of Education of China (20061065002) and Natural Science Foundation of Hubei Province of China (2009CDA033).
Chen: Journal of Nanotechnology in Engineering and Medicine.
Bodin: Journal of Biomedical Materials Research.
Danuta: International Journal of Polymeric Materials.
Martines: Journal of Sol-Gel Science and Technology.

These kinds of problems have a wide application in materials science and predator prey population dynamics, etc.
Liu: Journal of Computational and Applied Mathematic Vol. 166 (2004), p. 31
[5] G.Wang: Journal of Nanjing University (in Chinese) Vol. 14 (1987), p. 32
Zhuang: Journal of Xiamen University (in Chinese) Vol. 37 (1998), p. 634
Cen: Journal of Computational and Applied Mathematics Vol. 221 (2008), p. 174.

Opening Process At first, the relative comparison of materials was performed.
Jun Kawai, Materials & Design, 22(2001), p.111 2.
Duval, Journal of Materials Processing Technology, 50(1995), p.133 4.
Han, Key Engineering Materials, 183-187(2000), p.547 5.
Hisashi Takeuchi, Journal of Materials Processing Technology, 38(1993), p.635 6.

If the material is tensioned, the damage will accumulate and the brittle fracture will occur when the stress in material meets with maximum principle stress criterion.
C soil B A blasthole explosive 4.0m 1.5m 3.5m 1.0m rock soft layer 2 bottom of the balsthole soft layer 1 (a) Platform of calculation model (b) Envisage of calculation model (c) 3-D view of calculation model Fig.1 Scheme of calculation model Model and Parameter of Materials.
Journal of Applied Geophysics Vol.61(2007),p. 1-15 [2] Cai, M. and Kaiser, P.K.: Assessment of excavation damaged zone using a micromechanics model.
International Journal of Rock Mechanics and Mining Sciences Vol.39 (2002), p. 165-184
Journal of Applied Geophysics Vol.57 (2004), p. 63-79

Introduction The special material properties and structure of a certain type of acoustic decoupling material, which is a special kind of porous viscoelastic material, make this material have function of damping, sound insulation, sound absorption, decoupling at the same time.
Qiu: Status and development trend of the anechoic tiles, Ship Science and Technology, (2006) No.4, p.6 (In Chinese) [2] X.L.
Liu: Research on vibration and near-field acoustic radiation of underwater ribbed cylindrical Shell, Chinese Journal of Ship Research, Vol. 1 (2006) No.2, p.13 (In Chinese) [3] Q.
Joseph: A numerical method for the calculation of dynamic response and acoustic radiation from an underwater structure, Journal of Sound and Vibration, Vol. 283 (2005) No.3, P.853 [4] B.
Guyader: Modal analysis of a shell’s acoustic radiation in light and heavy fluids, Journal of Sound and Vibration, Vol. 131 (1989) No.3, P.397 [5] Z.Y.

With the development of optical technology, optical aspheric lens are widely applied in spaceflight, aviation, national defense. [1-2] Nowadays, in the fields of laser fusion and satellitic optical system, fused quartz and BK7 glass are chosen as the workpiece materials for optical aspheric lens.
Fused silica glass is chosen as the workpiece material, and the machining dimension is 430mm*430mm.
Chinese Journal of Lasers, Vol.34, No.12 (2007): p. 1705-1709
Journal of Xiamen University(Natural Science), Vol.50, No.3 (2011): p. 559-562
Chinese Journal of Mechanical Engineering, Vol.38, No.5 (2002): p. 118-121．

Inroduction Ceramic materials have been applied in armour systems for several decades because of its low density and high compressive strength.
This is Johnson-Holmquist Plasticity Damage Model, which is useful for modeling ceramics, glasses and brittle materials.
Numerical analysis of the ballistic performance of confined ceramic composite targets against long rod penetrators.J.Journal of Universitu of Science and Technology of china.373,(2007) 727-731 [4] HUANG Liangzhao, ZHANG Juxian.
Journal of Ballistics. 213(2009)15-22
Journal of Ballisitics. 214(2009)68-71

The type of chip obtained in orthogonal cutting of the two materials is also presented. 1.
Two different materials were processed because the purpose is on-line monitoring the evolution of forces and temperatures for each material under the influence of cutting speed and feed rate.
Test v [m/min] f [mm/rev] 1 85 0.033 2 85 0.093 3 238 0.033 4 238 0.093 2.1 Cutting forces measurement The workpiece machining was performed without cutting fluid, using the same cutting insert for both materials.
Tests were realized on two types of materials: AISI 1045 carbon steel and AlSi1MgMn aluminium alloy.
Liu, Influence of the stress, strain and temperature on the surface roughness of an AISI 52100 steel due to an orthogonal cut, Journal of Materials Engineering and Performance, Vol. 14(5), (2005) 582-590