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But China Academy of Railway Sciences has proposed that the optimum range of sand ratio is 0.50 to 0.55 [7].
Journal of Chinese Ceramic Society 2012; 40(2):207-11 [3] ZENG Xiaohui, XIE Youjun, DENG Dehua.
Journal of Building Materials 2011; 14(1):52-7 [4] Li Jinrui.
Concrete: Microstructure, Properties and Materials.3rd ed.
Journal of the Chinese Cement Society 2007;35(3):671-8

Sapium Sebiferum is a multiple functional tree with application in energy, pharmaceutics, materials and sightseeing.
It is a multiple functional tree with application in energy, pharmaceutics, materials and sightseeing.
In Lei Zhanlan’s study[8], Methyl palmitate is extracted by solvent fractionation to improve the low temperature properties of the remaining components in order to meet fuel requirement, the palm methyl ester is directly used as the matrix of chemical raw materials or intermediate.
[5] Lin Ji, Mingjing Yi, Yongqin Chen, Yong Chen, GC—MS analysis of fatty acid components of Sapium sebiferum seeds from five different habitats, Journal of Hubei University(Natural Science), vol.32, pp. 443-446, April 2010.
[6] Ying Jin, Kangquan Guo, Lianshe Cheng, Study on Supercritical CO2 Fluid Extraction of Sapium Sebiferum Roxb Epidermis Oil, Journal of Shanxi University of Science and Technology, vol. 26, pp. 53-56, January 2008.

As the project increases, enlarge of size, advance of technologies and competition, the task of materials procurement and management has become increasingly important.
Materials are a prerequisite for project implementation, materials procurement cycle and quality of materials is directly related to the progress and quality of construction projects, the successful completion of the project can effectively protect [5].
In the construction cost, total cost of construction materials accounted for about 60%-70%, so a direct materials procurement and management related to project profits.
Journal of Southeast University, vol.20, 2004, pp. 108-112
Journal of Computer and System Sciences. vol. 70, 2005, pp. 73-85

Methods of research were based on domestic and foreign materials on use of alternative fuel in agricultural production.
– use as raw materials for production of biofuel, as a rule, the biological raw materials unsuitable for the food purposes [15]. 2.
World experts unambiguously support use as initial raw materials of biomass of the second generation.
Schmitz, Brazil’s ethanol program: the case of hidden subsidies, International Sugar Journal. 105 (2002) 254-265
Babiker, Is emissions trading always beneficial, Energy Journal. 25 (2004) 33-56

Ceramic goods are made from natural materials that include a high quantity of earth materials like clay and molding into any form, then dehydration phase where they are exposed to temperatures ranging from 1200°C to 1290°C [18].
Construction and Building Materials [Internet].
Materials and Structures [Internet].
Construction and Building Materials [Internet].
International Journal of Engineering Science and Technology. 2011 Jul; 3(7): 5436-40

Lavernia, "Processing, Microstructure and Fracture Behaviour of a Spray Atomized and Deposited Aluminium Silicon Alloy," Journal of Materials Science, vol. 32, pp. 2835-2848, 1997
Korevaar, "Microstructural Features and Final Mechanical Properties of the Iron-Modified Al-20Si-3Cu-1Mg Alloy Product Processed from Atomized Powder," Journal of Materials Science, vol. 26, pp. 3041-3050, 1991
Haizhi, "An Overview of the Development of Al-Si Alloy Based Material for Engine Applications," Journal of Materials Engineering and Performance, vol. 12, pp. 288-297, 2003
Rao, "Microstructure and Properties of High Strength Aluminium Alloys Subjected to Rapid Solidificaton Processing," Indian Journal of Engineering and Materials Sciences, vol. 6, pp. 158-163, 1999
Stefaniay, "Hypereutectic RS/PM Al-Si-X Alloys," Materials Science Forum, vol. 414-415, pp. 165-174, 2003

Preliminary Research on One Multiband Smoke Material Preparation Weidong Xu1, a, Heng Liu2, a, Shashi Zhang3, a, Jianghua Wu4, a, Jinsong Zhu5,b 1,2,3,4 Institute of Field Engineering, University of Science and Technology, PLA 5 Institute of Sciences, University of Science and Technology, PLA No. 1 Haifuxiang Rd., Qinhuai District, Nanjing, Jiangsu, China.
As a result of the latest development of TIR sensing technology and PGW, materials such as red phosphorus are added to enhance camouflage smoke to interfere with TIR.
Experiment Materials.
In the light of smoke electromagnetic attenuation theory and considering future practical demand of smoke materials, the multiband smoke agent can be applied to interfere with visible lights, TIR and MMW, being wide in shielding area, quick to generate smoke, long for hanging time, effective in material, strong in stability, low in cost and harmless to human body.
Orthogonal experimental method is employed to save material and time, considering different kinds and different formulations of the four materials will inevitably influence the smoke effect after combustion.

Jones: International Journal of Mechanical Science(1999a), Vol. 41, pp. 179-208
Belingardi: International Journal of Mechanical Science(1997), Vol. 39, pp. 575-583
Singace: International Journal of Mechanical Science(1999), Vol. 41, pp. 865-890
Adachi: Key Engineering Materials(2003), Vols. 233-236 pp. 239-244
Jones: Journal of composite Materials(1992), Vol. 26, pp. 37-50.

Experimental Section Materials PVDF (Solef 1010) was purchased from solvey Co., Ltd.
Wang: Journal of Membrane Science, Vol. 285 (2006: 290
Shen, et al: Journal of Membrane Science, Vol. 337 (2009):257
Sadatnia: Journal of Membrane Science, Vol. 325 (2008): 92
Li, et al: Journal of Membrane Science, Vol. 326 (2009):103

Materials and Method Materials Locally sourced rice husks, metallic chips, sawdust, urea formaldehyde (50% solid content) and gelatinised starch (10%) were used in this study.
Yunus, Particleboards from Rice Husk: a brief introduction to Renewable materials of Construction, (2009) 12-14
Journal of material science. 41(21) (2006) 6978-6983
International Journal of Chemical, Molecular, Nuclear, Materials and metallurgical Engineering, World Academy of Science, Engineering and Technology. 4(4) (2010) 276-280
Journal of Forestry Research. 7(1) (2010) 20-23