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It is the carrier and the material and energy providers of the all the region life organisms to suivive and develop.
Chinese Journal of Applied Ecology, 2002, 13(3): 354-35.
Journal of Environmental Management, 1995, 3(57): 21-29
Science, 1997, 277:515-524
Journal of Tsinghua University(Science and Technology), 2010, 50(6): 913-916.

Focus on meeting the needs of the region's economic and social development With the further process of China's opening up and joining the WTO, China's resources and raw materials supply situation will be significant changes.
Improving efficiency of resource use based on scientific and technological progress The exploitation of mineral resources must change from the track of repeating construction, increasing quantitative, blinding investment into improving efficiency of resource use and improving economic efficiency, environmental benefits and social benefits based on scientific and technological progress, change the situation from providing the main raw material to the east into striving to develop fine and deep processing of resource.
Acknowledgements This work was financially supported by Aviation Science Fund No. 20085553016, and the National Natural Science Foundation of China under Grant No.60672184.
Sustainable development and legal protection of the Western environment and resources [J].Social Sciences in Gui zhou, 2003.9(185) 23-25 [2] Xinhua News Agency.
International Journal of Services, Technology and Management, v 13, n 3-4, p 263-280, March 2010 [7] Moiwo, Juana Paul.

Introduction With the continuous development of modern science and technology, the demands of various new vehicles and weapon equipment for structure and weight are also increasing.
Analysis on the dynamic response based on Hamilton’s principle Assuming that the length of cylindrical shell is L, the thickness is h, the radius is R, the material density is ρ, the elastic modulus is E, the Poisson’s ratio is μ, the axial pressure load is P, the radial aerodynamic load is which is uniformly distributed in area 2ε1×2ε2 and the coordinate of regional center point is（α0，j0）.
The parameters are chosen as follows: the cylindrical shell selects the aluminum material, the elastic modulus E=71GPa, the material density is 2700kg/m3, the Poisson’s ratio v=0.3, the thickness of shell h=0.006m, the cross-sectional radium of cylindrical shell R=0.105m, the length of cylindrical shell L=2.8m, the axial pressure P=17320N and the sizes of the area under the radial aerodynamic impaction loadε1 =0.01L，ε2=0.1π，α0=0.1L，j0=0.25π，q0=10000N，ωb=1000.
Wuhan: Huazhong University of Science and Technology Press, 1996
Journal of Ship Mechanics, 2007, 11(1): 79-87.

Searching for how to detect and remove nitrogen compound is a fascinating subject in the domain of environment science [1,2].
They directly show the interaction mechanism between photon and material.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (11174078).
[8] D.Xiao, D.Yu, X.Xu: Journal of Molecular Structure, Vol.918 (2009), p.154
Materials, Vol.18 (2001), p.231

Sand blasting is a cheaper process but longer time to clean the moulds where in long run tends to damage the mould due to the usage of high velocity fine materials [3, 4].
This work focused on preparation of NR latex films as base material for mould cleaning compound.
Materials and Methodology Latex compounding; Commercial high-ammonia (HA) Natural Rubber (NR) latex was supplied by Zarm Scientific and Supplies, Malaysia.
Charuchinda, Preparation of Microcrystalline Cellulose from Waste-Cotton Fabric for Biodegradability Enhancement of Natural Rubber Sheets, Journal of Reinforced Plastic and Composites, Sage, (2009)
Mas Rosemal Hakim, Effect of Drying Temperature on Tensile Strength of Natural Rubber Latex Films, International Conference on Chemical Science, Yogyakarta-Indonesia, 2007

Materials Science & Engineering A 597(2014)314-323
Journal of Materials Processing Technology 212 (2012) 1157–1168
Materials Science and Engineering A 527 (2010) 1962–1969
Materials Science and Engineering A 390 (2005) 127–138
Materials Science and Engineering A354 (2003) 298-305.

[5] Jang-Bog Ju, Woo-sik Kim, Jae-il Jang,Variations in DBTT and CTOD within weld heat-affected zone of API X65 pipeline steel, Materials Science and Engineering A, 546(2012)258-262
Gerlich, Influence of martensite-austenite (MA) on impact toughness of X80 line pipe steels, Materials Science and Engineering A, 662 (2016) 481-491
Jansto, Microstructure and high strength–toughness combination of a new 700 MPa Nb-microalloyed pipeline steel, Materials Science and Engineering A, 478 (2008) 26-37
Mahajan, Deformation twinning, Progress in Materials Science, 39 (1995) 1-157
Ivey, Transformation twins in the weld HAZ of a low-carbon high-strength microalloyed steel, Materials Science and Engineering A, 435-436(2006)371-382

The summary of reverse logistics 1.1The definition of reverse logistics Logistics is to meet consumers’ demand for raw materials, intermediate inventory, the final product and related information from the origin to the effective flow and storage consumption in the planning, implementation and control process.
The definition of reverse logistics originated in foreign countries, the earliest concept of reverse logistics by Stock (1992) put forward, he pointed out: the reverse logistics is a product return, material substitution, reuse of materials, waste processing, processing, repair and remanufacturing process of logistics activities(chart1).
The American Association of logistics management to the definition of reverse logistics is "for the recycling or disposal of waste, in the effective and proper cost of raw materials, WIP, finished goods, and related information, flow and storage to the original output point from the point of consumption, process planning, execution and control, so as to achieve the recovery value and proper disposal. "[1,2] Chart 1.The process of reverse logistic In 2001, China developed national standards, "logistics terms" (GB / Tl 8354.2001), the reverse logistics was classified into two categories: returned logistics and waste material logistics.
The rapid energy consumption, leading to the production cost of enterprises is also increasing, strengthen management of reverse logistics, enterprises can through the recycling of waste re-use items, fully tap the value of residual waste materials or regain the use value of products; at the same time as the recycling of waste products is low price, abundant source, can reduce the cost of raw materials, thus obtained economic benefits at lower cost[4]. 3.2The construction of reverse logistics system of waste products.
For example, in Japan, because the labor cost is relatively high, the overall level of consumption of residents is relatively high, the secondary market is very small, for reverse logistics of waste household appliance is mainly carried out through the recycling of raw materials, mechanization, automation of the whole process of waste household appliances is relatively high, after collecting, isolated by removing, crushing the various components and then again used as the raw material, the raw material price is usually lower, therefore, recycling the waste appliance reverse logistics system utilization rate is low, although the recycling rate is relatively low, can be effective and good to reduce the pollution of the environment, on the long run, this is feasible.

The material properties of the adhesive layers are used in the solid-shell interfacial elements for the damage prediction.
The material properties of T300/976 composite are:.
The material properties of the adhesive layers can take those of the matrix material of T300/976.
[6] Guan, Z., Yang, C., Low-velocity impact and damage process of composite laminates, Journal of Composite Materials, 2002, 36: 851~871
(Natural Science Edition), 2010, 38: 129-132.

This type of kiln does not count with heat and material losses.
Thermal capacity of solid either on input and output was determined after similar materials as it was impossible to determine an exact value. [1, 5] Graph No.1 shows maximal and minimal average relative change of the function.
[4] Zajac J., Hutyrová Z., Tarasovičová A., Assessment of statistical signification of factors by machining inhomogeneous materials – WPC, In: Applied Mechanics and Materials, Volume 308, 2013, Pages 165-169, ISSN: 1660-9336
ISBN: 978-145031060-4gneto-optical media and plastic substrate interfaces (Translation Journals style),” IEEE Transl.
Study on screw drill wear when drilling a new ELC stainless steels and accompanying phenomena in the cutting zone” Advanced Science Letters, Volume 19, Issue 8, August 2013, Pages 2490-2493 ISSN: 1936-6612