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Hot forming process with synchronous cooling is implied to improve the formability of lightweight materials with poor forming performance at room temperature.
Aluminum alloy is regarded as one of the most suitable lightweight materials for the vehicle’s weight reduction for its mechanical properties.
The lift of cooling rate with certain limits can raise the material’s mechanical properties.
Acknowledgments The great supports from National Natural Science Foundation of China (51175252) are gratefully acknowledged.
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Precision aspheric moulds made of hard or brittle materials are mostly ground with diamond wheels[2], but residual tool marks on the aspheric surface are unavoidable, so subsequent polishing is needed for required accuracy[3] [4].
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Its Material is 1Cr18Ni9Ti.
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Earthquake need to prevent leakage of the gas is mainly the industrial production of larger reserves, are highly poisonous, and the liquid boiling temperature lower immediately leak caused by the proliferation of a wide range of chemical raw materials or intermediate products, such as chlorine, hydrogen cyanide, ammonia, and carbon disulfide[1].
Application example Cities of chemical building materials plant, for example, using a Gaussian plume model simulation of the poisonous gas diffusion process, based ArcGIS10.0 system.
Response measures: the production and storage of poisonous, flammable, explosive materials, factories and warehouses, should be kept away from the urban residential; should be carried out within the city limits of these existing units conditional relocation, relocation difficult should be isolated, closed, reinforcement measures.
Public incident emergency management information system for both peacetime and wartime, Journal of Safety Science and Technology, Vol. 1(2005), p.34 (In Chinese) [4] Chuansheng Jiang, Yunfeng Deng.
China Safety Science Journal, Vol. 17(2007), p. 9 (In Chinese) [5] Zugang Chen, Yulong Wang, Yanhua Li and Jinxin Wang.

Ultrafine energetic materials can improve the properties of explosive significantly [2-3].
[2] Yu Weifei,Huang hui,Nie fude,eg.Rasearch on Nano-Composite Energetic Materials[J] ENERGETIC MATERIALS 2005，13（5）：340-343
[3] Xu huixiang,Li xingwen,Zhao fengqi,eg.Review on Application of Nano-metal Powders in Explosive and Propellants[J] ENERGETIC MATERIALS 2011，19（2）：232-239
[J].Chinese Journal of Explosives&Propellants, 2002，25（2）：1-3
Chinese Journal of Explosives&Propellants, 2009，32（6）：75-78

China 2College of Mechanical Science and Engineering, Jilin University, Changchun 130025, P.R.
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Quartz glass has become an essential material for modern technology and industry.
However, as a typical fragile material, quartz glass has poor machinability.
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As the fiber content increases generally it lead to an increase in modulus strength of composite materials.
Journal of Thermoplastics and Composite Materials 2008;21:165–74
Journal of Applied Polymer Science 2003; 90: 2170–2178
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Journal of Material Processing and Technology 2009;209:3079–88

Due to its high production cost, scientist have been motivated to explore new composite materials in fabricating low-cost solar cells.
Materials Science in Semiconductor Processing 16 (6), 1478-1484 (2013)
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Materials Transactions 51 (12), 2322-2324 (2010)