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Acknowledgements This work was financially supported by the Educational Department of Liaoning Province Natural Science Foundation(2011325).
[4]Shuqin Zhao, Xiaoxin Xu，Zefeng Jiang: Journal of Materials and Metallurgy Vol.23( 4) 2008,p.245-249
[5]Columbia University in the City of New York( Social Science Edition) Vol. 60 (3) (2011),p.88-92
[7]Lifeng Xhao: ShanXi Science & Technology Communications, 162 (5) (2012),p.36-39
[9]Gaofeng Wang, Yue Zhang:Yinchuan Academic Journal Vol.25(2)( 201 l),p,106-109

It also provides a reference value in the selection of subgrade materials in aeolian soil area.
Test material and method Test material.The cement in this test is Portland Cement 425, gravel, aeolianite, fly ash from local materials nearly.
Take the JH series produced by Jilin Tianyi Building Materials Company as fly ash activator.
In the lack of natural sand soil wind-blowned region, use cement, fly ash to stable wind-borned sand as pavement materials, can doing local materials, reduce the cost of projects
Journal of Hebei North University (Natural Science Edition),2006,12(28): 67-73

The expansion forming parameters of the expandable tubular material Wenzhu Shen1, a, Yang Yang2, b, Chunfu Li1,c,Weixiang Yang 1,d, Xing Jin 1,e 1School of Material Science and Engineering, Southwest Petroleum University,Chengdu610500, China； 2Beijing Company, China Petroleum Engineering Co., Ltd., Beijing100085, China awenzhupinger@163.com,byangy_yuzhoumu@sina.com, clichunfu10@163.com, d920778638@qq.com,e1291289376@qq.com Key words: expandable; tubular; expansion forming parameter.
The value of m has a great impact on the plastic performance of metal materials.
Materials For Mechanical Engineering, 2002, 26 (10):7-9,37
Journal of Plasticity Engineering, 2009,16(1):149-152
Huazhong University of Science & Technology Press, Wuhan, 2010, 12:54

The low temperature and solid-state deposition associated with cold spray allows refractory materials such as Ta, Mo, and W to be deposited without high temperature requirements.
There appears to be very dense and homogeneous flow of material shear present in all coatings.
Yield stress of a material is defined by the onset of 0.2 % plastic deformation which is denoted by Rp0.2.
Walia, T.S.Sidhu, Effect of Parameters on Coating Density for Cold Spray Process, Materials and Manufacturing Processes. 27 (2012) 193-200
Neiser, Optimizing the Cold Spray Process, Thermal Spray: Advancing the Science and Applying the Technology, B.R.

China 2 The Department of new materials, Guangzhou Research Institute of Non-ferrous Metals, Guangzhou 510651, P.R.
The metal elements, nonmetal elements and ceramics grains can be used as laser alloying materials.
The above spherical casting WC powders were used as the adding materials for laser surface alloying treatment on medium carbon steel.
Kusinski: Journal of Materials Processing and Technology Vol. 109 (2001), P. 154
Benyounis: Journal of Materials Processing and Technology Vol. 182 (2007), P. 427

The structure, material and craft of the switch valve sealing bush are studied in this paper.
Through the experiments of elastic materials, we compared kinds of elastic materials’ physical characteristics and found that the nylon composites could meet the working requirements.
With the passage of working time, water diffuses inside the nylon composites through macrocrack and micro-pore space between polymers and fiber, which causes the expansion of materials and the increase of shear force, and the service life of sealing bush reduces greatly[7].
[4] R.H.Wang, L.P.Li, W.D.Zhou: Experiment and Mathematical Model of Rotary Cutting of Casing With Abrasive Water Jet, Journal of China University of Petroleum(Edition of Natural Science), Vol.34(2010)No.2,p.56
[5] Y.Y.Ma, W.H.Wang: On the Friction and Wear of Short Glass Fiber Reinforced Nylon, Mechanical Science and Technology , Vol.22(2003)No.11,p.993

Introduction Polyester diol is mainly used in the production of polyurethane products [1-5], such as thermoplastic polyurethane, polyurethane dope, polyurethane synthetic leather slurry and polyurethane foam materials and others.
Experimental Materials.
Journal of Applied Polymer Science Vol.71(1999),p.415~422 [3] Palanivelu K, Sivaraman P, Dasaratha Reddy M.
Materials Science & Engineering A Vol.6(2007), p. 60 [6] Quli Fan, Jianglin Fang, Qingmin, Xuehai Yu.
Journal of Applied Polymer Science Vol.74(1999), p.2552~2558 [7] Parmar R, Patel K, Parmar J.

However, most of the journals did not discuss the full process of MRE preparation in detail.
Mu, “A model of the behaviour of magnetorheological materials,” Vol. 5 (1996), pp. 607–614 [2] M.
Stenberg, “Performance of isotropic magnetorheological rubber materials,” Polym.
Stenberg, “Improving the magnetorheological effect in isotropic magnetorheological rubber materials,” Polym.
Samsuri, An Introduction to Polymer Science and Rubber Technology.

Because each phase has different temperatures, the investigation on materials of core concrete and steel is of key importance for the whole mechanic analysis.
Material Model of Steel.
Material Model of Concrete.
Huo: Journal of Structure Engineering.
Beijing: Science Press, China (2007) (in Chinese) [10] W.H.

This can be explained as that the increase of electrolytic ion concentration reduces the repellant intermolecular and expand extent of molecular [12], which therefore, affect the seize effect of SAP materials to water and fertilizer.
The aim is to selected prior SAP materials, to raise nitrate nitrogen use efficiency, and to prevent non- point pollution and groundwater nitrogen pollution.
Materials and Methods Experimental Materials.
Qu, “Effects of Water Retaining Agent on Ammonia Volatilization and Nutrient Leaching Loss from N, P and K Fertilizers,” Journal of Agro-Environment Science, vol. 26, pp. 1296-1301, April 2007
Zhu, “Prediction Model of Groundwater Pollution by Nitrogen,” Environmental Science, vol. 12, pp. 8-12, June 1991