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Generally speaking that, any rocks on the surface of the earth will slowly decomposed and transformed into soil parent material, which is is a slow and complex process, and then through the climate, biological factors such as comprehensive formed under the action of minerals, organic matter and microbial soil based on the role of weathering.
In general, water and soil erosion not only worsen the mountainous rural material production and living conditions but also results in the decrease of the agricultural production income, and so exacerbating the mountain rural poverty and even some areas appeared "hard farming, draft and raise difficult" situation.
(4) the soil parent material and fragile ecological environment.
Journal of Mountain Science, 2001, 19 ( 5 ) [2]Language Institute of Chinese Academy of Sciences.Modern Chinese Dictionary.Beijing: Commercial Press,2005
Beijing: Social Sciences Documentation Press, 2008 [5]Sun Chang-an.

Surface Modification of Wool Fibers by Ecologically Ozone-assisted Treatment WAN Ailan1, a, YU Weidong 1, b 1Textile Materials and Technology Laboratory of Donghua University, Shanghai 201620, China; a wanailan@mail.dhu.edu.cn b wdyu@dhu.edu.cn Key words: Wool fiber, Ozone-assisted, AFM, FTIR, X-ray Abstract: Wool fiber was modified using ecologically acceptable ozone-assisted treatment (ECO) in this study.
Introduction Wool is a high-quality protein fiber and is widely used as a high-quality textile material.
Experimental Materials.
All the samples were cleaned by Soxhlet extraction with acetone and grain alcohol for 4h, air-dried and then rinsed thoroughly in distilled water to remove reagents, inorganic and proteinaceous materials.
Duran: Journal of Cleaner Production, Vol. 16 (2008), p. 1900 [8] T.

The billet section is meshed with 899 nodes and 1674 axi-symmetric triangle elements. 8 R 8 24.7 30 R 12 R 4 R 8 R 6 R 4 R 4 R 4 21.5 4 43.2 R 4 R 4 R 4 3 R 13 60.2 75.8 Symmetric axis 18.4 Fig. 1: Shape of the wheel The billet material is aluminum having the following properties: Young's modulus GPa, Poisson's ratio , friction coefficient , Hollomon stress-strain curve MPa.
Shen, Cold and hot forging – Fundamentals and Applications, ASM International Materials Park, Ohio, 2007
Simulation of axi-symmetrical forging process by Inverse Approach, Materials Science Forum Vols. 675-677 (2011) pp 1007-1010
Debray, “An efficient pseudo-inverse approach for damage modelling in the sheet forming process”, Journal of Materials Processing Technology, Volume 151, Issues 1-3, pp. 88-97, 2004

The process induces a state of compressive residual stress at the material surface and the cold working.
The material used is the typical high-strength aluminum alloy LC4.
The 3D models adopted linear material model with a Young’s modulus of elasticity (E) 71.7 GPa and a Poisson’s ratio of 0.33 in the LMS analysis.
The process induces a state of compressive residual stress at the material surface.
Applied Mechanics and Materials Vols. 44-47 (2011) pp 4186-4190 [6] An Guofeng, Lv Shengli, Zhang Wei and Lv Guozhi: Chinese Journal of Scientific Instrument Vol.30NO.6 (2009), p.779-782 [7] S.

Materials and methods Plant materials and treatments.
The material was washed with natural seawater immediately after sampling then pre-culture for 7 days at room temperature with illumination of 3000 Lx.
Acknowledgements This work was financially supported by national natural science foundation of China (41306104), the key laboratory for ecological environment in coastal areas, state oceanic administration (201108), Dr start-up foundation research of Liaoning province (NO. 20081076) and Dalian ocean university foundation (2012HYDX11).
Callow: Journal of Experimental Marine Biology and Ecology Vol.1(2003)p. 115 [11] H.
Wei: Advanced Materials Research Vol.610-613(2013)p. 3231 [12] K.R.

Introduction Alloys of the Al-Cu-Mg system have found wide application as structural materials due to their combination of high strength and ductility.
Materials and Methods In the work, the standard AA2024 alloy was additionally alloyed with 1.5% Y.
Thus, Alloy AA2024 with the addition of 1.5% Y is a promising material for additive manufacturing.
Zeng, C.Yang, Study on high strength Al-Cu-Mg alloy fabricated by selective laser melting, Zhongguo Jiguang/Chinese Journal of Lasers. 43 (2016) 0503007
Barkov, Microstructure and materials characterization of the novel Al-Cu-Y alloy, Mater.

Quantum chemistry is widely used in the fields such as material, energy, environment, chemical industry and laser technology.
Materials and methods Materials.
Acknowledgement This work is financed by Shanghai Natural Science Foundation (Grant No.12ZR1434500).
Hong Kong: [s n] (1999), 551-556 [5] Yuyan Hu, PengfeiZahng, Dezhen Chen, et al: Hydrothermal treatment of municipal solid waste incineration fly ash for dioxin decomposition, Journal of Hazardous Materials (2011), in press [6] Andreas Karachalios: On the Making of Quantum Chemistry in Germany.

Effect of Nitrogen Electrolytes on Al2021 Alloy by Electrolytic Plasma Processing Byunh-Hyun Ahn1, Dong-Gun Lee1, Je-Hyun Lee1, Uk-Rae Cho2, Bon Heun Koo1,a 1School of Nano and Advanced Materials Engineering, Changwon National Universty, Changwon, Gyeongnam 641-773, Korea 2Engineering Research Center for Intergrated Mechatronics Materials and Components, Changwon National University, Changwon, Gyeongnam 641-773, Korea abhkoo@changwon.ac.kr Keywords: Al2O3-AlON coating, Aluminum alloy, Nitrogen inducing agent Abstract.
AlON is a unique material of spinel phase, which exhibits many excellent properties and is widely used in engineering.
AlON transparency allows for real time observation during quasi-static and high rate tests and, therefore, is an excellent model material for polycrystalline structural ceramics.
In addition, because of its large grain size, the material is more tractable for modelling and computer simulation studies of deformation and failure.
Journal of the European Ceramic Society., 913 (2000) 20

Materials and methods Cocoons of the Bombyx mori silkworm Cocoons of the B. mori silk worm were collected from a local farm in Ubon Ratchathani province, Thailand.
The signals that derive from electron-sample interactions reveal information about the sample including external morphology (texture), chemical composition, and crystalline structure and orientation of materials making up the sample[7-8].
Therefore, the SF filter could be applied as an alternative material for indoor air treatment.
Kruenate, Application of Nano-TiO2/LDPE Composite film on photocatalytic oxidation degradation of dichloromethane, Journal of Environmental. 33(2012) 955-959
Bhosale, Solar Energy Materials and Solar Cells, 92(2008) 283-290

Introduction Wood is one of the most popular construction materials in ancient China.
Experimental materials.
The enhancement of the bearing capacity of specimens YXB-2,YFB-2 is similar, and more than the carrying capacity of the specimens all-bonded with the same material.
Ÿ In the three types of materials, AFRP reinforcement specimens are not pulled off.
Haller: Journal SEI.