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The conditions of outdoor damage process on materials can be reproduced in a controlled environment at laboratory level.
It is possible to notice a loss of mass after 30 day of exposure and then the materials seems to be stable.
Some of the most easily observed changes are partial strength loss and loss in material density over time (Mass per unit area).
Jing-rong, Journal of Hydrodynamics, 23 (6):820-825, (2011) [3] N.
P.Sangam, Geotextiles and Geomembranes, 20, 77-95, (2002) [15] ASTM (1994), Annual Books of ASTM Standards, American Society Testing and Materials, Philadelphia, Pennsylvania.

The difference between them consists in the number of material parameters needed as input data (four, six, seven and eight different parameters, respectively).
The integer exponent k depends on the crystallographic microstructure of the material: for BCC alloys and for FCC alloys.
Table 2 lists the biaxial material characteristics.
Akbarzadeh, An experimental and theoretical study on the prediction of forming limit diagrams using new BBC yield criteria and M–K analysis, Computational Materials Science 44 (2009) 1272-1280 [9] D.
Kuwabara, Advances in anisotropy and formability, International Journal of Material Forming 3 (2010) 165-189

Hydroxyapatite (HA) is a bioactive material that can provide good osteointegration and rapid bonding with the adjacent hard tissue [2].
Ti–6Al–4V is also well known for their potential as superplastic materials for applications in different areas including the aerospace, transportation and biomedical fields.
Superplastic materials are polycrystalline solids which have the ability to undergo large strains prior to failure.
Doremus: Journal of Biomedical Material Research Vol. 18 (1984), p. 719
Dahotre: Materials Science and Engineering R Vol. 66 (2009), p. 1

Nano-materials have been titled the most promising materials in 21 century by scientists.
In recent years, much attention has been paid to the applications of nano-materials in civil engineering, because nano-particles have many special properties such as huge specific surface area and high activity due to their small size.
Experiment Materials and mixture proportions The cement is P.O42.5.
Construction and Building Materials, 11(7-8)(1997), p383
Journal of Colloid and Interface Science, 211(1999), p39

Introduction The Chinese postman problem introduced by Meigu Guan [1] is a class of arc routing problems, it has extensive applications in many fields such as winter gritting [2], municipal waste collection [3], material allocation and delivery [4] as well as intelligent transportation [5,6].
Acknowledgements This work was financially supported by Natural Science Foundation of China (Grant No. 51368055).
The Journal of the Operational Research Society, 43(11)(1992), p. 1031-1034
European Journal of Operational Research, 190(1)(2008), p. 52-68
Journal of the ACM, 26(1979), p. 538-554

Open Access Material, AHP," 2004
Journal of IndianSociety of Remote Sensing," vol. 36, pp. 335-349, 2008
Pradhan, "Flood susceptible mapping and risk area delineation using logistic regression, GIS and remote sensing," Journal of Spatial Hydrology, vol. 9, 2010
Abdalla, "Multicriteria analysis for flood vulnerable areas in Hadejia-Jama'are River basin, Nigeria," European Journal of Scientific Research, vol. 42, pp. 71-83, 2010
Simon, "The new science of management decisionPrentice-Hall," Englewood Cliffs, NJ, 1977.

The paper has determined that the natural materials and chemical reagent to be the best preparation technology condition for preparing modified Bentonite.
Materials and Methods Test materials.
Add water according to the proportion of 1:25 for organic materials and water.
ADSORPTION OF COPPER AND CADMIUM ON TWO SOILS AS AFFECTED BY WATER-SOLUBLE PRODUCTS OF THREE ORGANIC MATERIALS [J].
Journal of Fuzhou University(Natural Science Edition), 2004, 4, 32(2): 212-215 [6] LI Kai, Preparation of Modified Bentonite and Its Characteristic of Adsorption of Cu～ (2+) Ion in Waste Water [D].

Some material properties of the DAHA are listed in Table 1.
Some material properties are obtained from adopted general material ranges, so they are not exactly numeric but acceptable.
Journal of Engineering Design. 2007,14(3):210-214
Mechanics of Materials [M].
Beijing: Science and Technology Literature Publishing House. 1994.

The relative Raman shift in different crystallographic orientation is given by [10]: XX rSSSqSSp σ ϖ ϖ λ ϖ 0 44 12 11 1211 0 1 4 )3()( 2 ++++ ==∆ [110] XX rSSSqSSp σ ϖ ϖ λ ϖ 0 44 12 11 1211 0 2 4 )3()( 2 −+++ ==∆ [-110] (1) XX pSSSq σ ϖ ϖ λ ϖ 0 12 1211 0 3 2 )( 2 ++ ==∆ [100] Where, 0ϖ : Raman shift when the stress is zero, ϖ∆ : relative Raman shift, 11S , 12S , 44S : the element of material compliance tensor, p , q , r : the phonon deformation potentials, XXσ : stress.
Microelectromechanical Structures for Materials Research, Vol. 518, Materials Research Society Spring Meeting, San Francisco, CA, USA, April 14-16, 1998, pp. 57-65
Selium Ünlü et al, Micro-Ramam Measurement of Bending Stresses in Micromachined Silicon Flexures; Journal of Microelectromechanical Systems, vol.12 (2003), p.779 - 787 [11] Zhang Wendong et al Micromachined Transducers Sourcebook, Science Press, Beijing, China, 2003, p132 - 135 (in chinese) [12] W.Sharpe, Jr., S.Brown, G.Johnson and W.Knauss, "Round-Robin Tests for Modulus and Strength of Polysilicon," Proc.
Microelectromechanical Structures for Materials Research, Vol. 518, Materials Research Society Spring Meeting, San Francisco, CA, U.S.A., April 14-16, 1998, pp. 57-65
[14] K.E.Petersen, "Silicon as a Mechanical Material," Proceeding of the IEEE, vol.70, no.5, May 1982, pp.420-457 [15] W.Riethmüller, and W.Beneche, "Thermally Excited Silicon Microactuators, " IEEE Transaction on Electron Devices, vol.35, no.6, June 1988, pp.758-763 [16] John Wiley & Sons, Semiconductor Sensors by S.M.Sze, INC.

This projectile uses its kinetic energy or carrying flammable materials to destroy the target, which can be considered as an underwater kinetic energy projectile.
For compressible materials, the expression of state equation is
The material of the projectile model is 93W tungsten alloy, and the material of the target plate is 4340 steel[6,7].
[4] Information on http: //www.ctechdefense.com/ projects.html [5] Daqiao Jin, Cong Wang, Feng Yu: Aerodynamic Missile Journal, Vol. 40(7)(2010), p.19-23.
Hefei: University of Science and Technology of China. 2001.