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Under the condition of a constant material removal rate, a new aspheric surface polishing model is brought forward.
As is shown in figure.4, the material removal rate increase with the increase of these two factors.
Acknowlegements The author would like to thank the support of the Natural Science Foundation Project of China (51075188) and the Natural Science Foundation Project of JiLin Province (201115021).
Shi Yongjie, Zheng Di, Hu Liyong, Wang Longshan, Force-position-postrue Decoupling Technique for NC Polishing of Aspherical Part, Journal of JiLin Universit(Engineering and Technology Edition),Vol.42 No.1, Jan.2012 [3].
Shi Yongjie, Zheng Di, Jianming Zhan, Longshan Wang, Research on Force-position-posture Decoupling Control for NC Polishing of Aspheric Parts, JOURNAL OF MECHANICAL ENGINEERING, Vol.47 No.11, 2011.06 [5].

The third is the standard for specific purpose that is formulated for the materials with specific purposes.[3] They Introduced the Risk Assessment to Evaluate the Safety of New Materials In addition to considering the structure and properties of the packaging materials themselves, they make a migration simulation test with their contact products to evaluate the effect of packaging materials on agricultural products and foods safety.
The migration test is used to evaluate the content level of food residue from packaging materials and is the required test of new packaging materials.
Secondly, strengthen the awareness of environmental protection, increase the investment of science and technology and develop non-toxic, harmless and biodegradable green packaging materials to insure the process from raw material purchase to product manufacturing to accord with the environmental protection requirements of import countries.
This paper is supported by Hebei Science and Technology Department project (No.13457515D) and Hebei Education Department project (No.SQ123013) of China References [1] Yan-ming Zheng and Hui-yong Li: Safety Management of Food Packaging Materials[J].
Chinese Journal of Food Hygiene,4,(2006), 342-345

Journal of Food Science and Biotechnology 24(3):39-43 (2005).
International Journal of Food Science & Technology 44(5): 967-973 (2009)
Fujian Journal of Agricultural Sciences 16(3):56-60 (2001).
Journal of Anhui Agriculture Sciences 30(6):848-850 (2002).
International Journal of Food Science & Technology 27(5): 493-505 (1992).

The first is the development of high-performance membrane materials.
The main factors of membrane separation desulfurization are the choice of materials.
Stern: submitted to Journal of Membrane Science (2002)
Stern: submitted to Journal of Membrane Science (2008)
[12] Zhao Huijun, Zhao Shu hua, etal: submitted to Journal of Southwest Petroleum University (Science& Technology Edition) (2009)

They are presented by low-melting silicate materials, formed as a result of ore reduction, at the chemical interaction of gangue material components, coke ash and fluxing materials.
This provides the obtained silicate materials with high strength characteristics.
Starostina, Activation and processing properties of slags, prone to silicate decomposition, Contemporary issues of building materials science: proceedings of the 5th academic readings of RAACS, VSUACE, Voronezh, (1999) 380-383
Nosov, Binding materials based on electric-furnace steelmaking industry, Building materials. 5 (2011) 11-13
Bozhenov, Autoclaved materials technology.

Studied Material Studied materials are concretes which composition is shown in the Table 1.
Konvalinka, Physical and Mechanical Properties of Composites Made with Aluminous Cement and Basalt Fibers Developed for High Temperature Application, Advances in Materials Science and Engineering, Article ID 703029, 2015
Černý, Treated Coconut Coir Pith as Component of Cementitious Materials, Advances in Materials Science and Engineering, Article ID 264746, 2015
Černý, Free water intake as means of material characterization, Journal of Building Physics 33 (2009) 29-44
Kumaran, Moisture diffusivity of building materials from water absorption measurements, Journal of Thermal Envelope and Building Science 22 (1999) 349-355

Pure submicron-sized ZrC powder was successfully synthesized in KCl by using ZrO2, Mg and carbon black as the starting raw materials.
However, the raw materials used are expensive and the product particles also suffer from heavy agglomeration.
References [1] Y.J.Yan, Journal of Sol-Gel Science and Technology, 44(2007), p. 81
Sacks, Journal of Materials Science, 39(2004), p. 6057
Zhang, Journal of Materials Chemistry, 21(2011),p.18325

Spine LiNi0.5Mn1.5O4 (LNMO) is considered as one of the most attractive cathode materials due to its high operating voltage (at about 4.7V vs Li+) and high specific energy of 658 Wh kg-1, which is much higher than commercial cathode materials such as LiCoO2 (518 Wh kg-1), LiMn2O4 (400 Wh kg-1), LiFePO4 (495 Wh kg-1), and LiCo1/3Ni1/3Mn1/3O2 (576 Wh kg-1).
The structural properties and electrochemical performances of the as-obtained materials are investigated and reported below . 2 Material and Methods 2.1 Synthesis and characterization Li2CO3 (99%, Aladdin), MnO2 (90%, Aladdin), NiO (99.9%, Aladdin), and Nd2O3 (99.9%, Aladdin) were used as raw materials.
Chiang, Science, 330, 1485 (2010) [2] J.M.
Tong, Materials Chemistry and Physics, 2013, 138: 716–723
Nan, Chemistry of Materials. 2015, 27: 7734−7742 [23] Y.

Cordierite-mullite multiphase ceramics material has been produced from various starting materials [6].
There are many methods which could improve properties of ceramics materials, the most effective way is the use of additives.
These apparent porosities became some fracture sources which could severely decrease the flexural strength of multiphase ceramics materials.
According to the theory of thermal shock damage, the critical thermal shock resistance of materials was directly proportional to the materials' strength, but the ability of crack propagation was inversely proportional to the materials' strength.
Chinese Journal of Structural Chemistry, Vol. 16(2), (1997), p.118 [3] X.f.

Carbon sink marine ecosystem model Green packaging material is not necessarily a high-tech materials, many traditional packaging material itself has the environmental material characteristics or can be developed into green packaging materials, such as recycled paper material, polylactic acid (PLA) material.
A ton of waste paper can produce good quality recycled paper 850 kilograms, saving 3 cubic meters’ wood, at the same time can water-saving 100 cubic meters, saving 300 kilograms of chemical raw materials, saving coal 12000 tons and saving 600 degree [11].
Polylactic acid ( PLA ) material can be processed into a variety of packaging materials, and PLA production energy consumption is equivalent to the traditional petrochemical product 20% - 50%, to produce carbon dioxide gas is only for the 50%, and has good biocompatibility and biodegradability.
Composite packaging materials are in difficult to reclaim.
When recycling, composite materials such as mixed with a single material will make a single material recycling quality is destroyed, resulting in waste and pollution.