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Study on a New KIC Gradient Composites Fengchun Wei 1,a Xiuli Zhang 2,b Qiangwei Song1,c 1 Materials Science and Engineering school, Henan University of technology，Zhengzhou 450001,China 2 College of Mechanical and Electrical Engineering , Henan Agricultural University, Zhengzhou 450002,China a fchwei@sina.com b zhangxiuli619@126.com c swq988@126.com Key words: KIC gradient composites；fracture toughness; gradient change Abstract.
Experiment 2.1 Raw materials Unsaturated polyester(191), ignition primer and accelerator were all produced by Liyuan Company Limited, City of Changzhou; Short fiber-glass was produced by Synthetic Fiber Factory of Beijing.
A new concept in design of materials and structures: Assemblies of interlocked tetrahedron-shaped elemedts.
Journal of the Chinese ceramic society. 2007,35(9):1274～1276.
Publishing House of Huazhong University of Science Technology, 2003:96-99.

Paper industries consume the production of a large amount of raw materials, a large quantity of water and could easily lead to serious water pollution industries.
Beijing: China science and technology publishing house, 1993
Journal of hubei papermaking, 2006 (4): 32
Journal of three gorges university, 2006, 28 (2): 177
Journal of Sichuan Environment, 2005, 24 (4): 5

In order to fabricate the micro components with complex 3D geometries made of variety of engineering materials, traditional mechanical machining techniques have been scaled down from millimeter size range to micrometer and nanometer range.
Moreover, it can process a variety of engineering materials such as metallic alloys, composites, polymers and ceramic materials to form functional devices.
[3] W.Y.Bao, I.N.Tansel: International Journal of Machine Tools and Manufacture, Vol.40, No.15(2000), pp.2175-2192
[4] R.J.Seethaler, I.Yellowley: Journal of Manufacturing Science and Engineering-Transactions of the ASME, Vol.121, No.3(1999), pp. 524-531
Zheng: International Journal of Machine Tools and Manufacture, Vol.43, No.7(2003), pp.687-697

It is an international accepted definition that engineering is an application branch of science.
For nearly 20 years, the definition of modern engineering which being gradually accepted is given by Massachusetts Institute, i.e. engineering is one creative profession in respect of scientific knowledge and technology development and application which meet the social needs within the limits of materials, economy, labor, politics, laws and culture.
Therefore, this major includes a series of major courses, including mechanical cartography, theoretical mechanics, mechanics of materials, mechanical principle, mechanical design, fluid mechanics of chemical engineering, principle and application of thermodynamics, design of process equipment, equipment manufacturing process and technology of process equipment complete.
During the 2nd year, the importance of engineering practice course system is metalworking practice as well as theoretical mechanics and mechanics of materials.
(In Chinese) [2] K.H.Sun, C.G.Li: submitted to Journal of Research in Higher Education of Engineering (2003) (In Chinese) [3] X.D.Yang, Y.X.Cui: submitted to Journal of Jilin Teachers Institute of Engineering and Technology (2007) (In Chinese)

Annually, thousands of tons are produced around the world making this material to occupy the first place among the magnetic materials, in terms of both of total tonnage and total market value [1].
Chen: Magnetism and Metallurgy of Soft Magnetic Materials (Dover Publications - INC, New York, 1986)
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Because of low damping ratio and a poorer deformation capacity of the material of the high voltage electric equipment, the serially structure system consisted by electric equipment and overhanging stent is particularly vulnerable.
Due to piezoelectric material has the large output energy, fast response, wide frequency band and no electromagnetic interference, piezoelectric actuator made by piezoelectric material has been found wide study in the field of structural vibration control and began to play a more and more important part in mitigating seismic response of structures.
Acknowledgements This research is supported by Natural Science Foundation of China under Major Program No. 90815027, Natural Science Foundation of China under Project No. 51008009 and the Postdoctoral Foundation of China Project No. 20100480175.
Earthquake Engineering and Engineering Vibration, Vol. 20(2000), p. 81 [5] Ou J.P.: Structure vibration control-----active, semi-active and smart control, (Science press, Beijing 2003) [6] Li H.N., Li J., Song G.B.: Journal of Building Structures, Vol. 26(2005), p. 1 [7] Li H.N.: Multidimensional seismic control of structure (Science press, Beijing 2008) [8] Zhang Y.B.: Journal of Vibration and Shock, Vol. 27(2008), p.142 [9] Liu Y.H., Tan P., Zhou F.L. et al.
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Materials and methods Materials.
Other raw material: 38%industrial hydrochloric acid, 98%of industrial sulfuric acid, sodium hydroxide, etc.
Journal of Chemical Industry and Engineering(China), 59 (9)：2361-2365
Environmental Science & Technology, 27：100-101
Journal of University of Jinan(Science and Technology), 25(1)：79-82.

(1) Where, pct is the burst pressure of the cylinder, μ is the passion ratio of the liner material, E is the elastic modulus of the liner material.
Sweben: Comprehensive Composite Materials (Elsevier Science Ltd, London 2000)
Martins: International Journal of Pressure Vessels and Piping Vol. 111-112 (2013) p. 36
Lafarie: International Journal of Hydrogen Energy Vol. 35 (2010), p. 11397
Marques: Composites Science and Technology Vol. 69 (2009) p. 1348

Castor Capsule Sheller Key Component Design and Experimental Research Yuhua Caoa , Xiaoyan Guo*b Industrial design Research Iinstitute of Engineering, South China Agricultural University .SCAU Guangzhou, China , Guangdong natural science fund project Numbers ：9151001002000005 acyh2808@126.com, bYanzi800730@126.com Keywords: Sheller key components, mechanics analysis, mathematical model Abstract.
Cylindrical roller outside surface of the ravines, cylindrical roller there by the inner metal materials and the outer layer of flexible material composition.
Using mathematical software MATLAB) calculations of very convenient numerical solution of solving equations. 2)between rollers and castor capsule friction analysis [3-4] Sliding friction calculation formula of friction, N, f for the positive pressure, mu for sliding friction coefficient, it and contact body materials, surface smooth degree, dry and wet degree, surface temperature, relative velocity to wait to have relationships, for both a given surface, sliding friction and contact surface area is irrelevant.
Finite element analysis on mechanical properties of castor-capsule [J].Journal of Jiangsu University (Natural Science Edition) 2010.31(4),383-387 [2] Cao Yuhua，Li Changyou，Qing Yanmei et al.
Journal of Jiangsu University (Natural Science Edition) (Natural Science Edition) 2009.30(5)446-449 [3] Jin Chengqian,Wu Chongyou,Jin Mei et al.Design and Experiment of 4SY-2Rape Windrower.

Chnical characteristics of raw materials and preparation of TLA modified asphalt Base asphalt.
Acknowledgements The authors appreciate the support of National Natural Science Foundation of China.
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Journal of Chang'an University:Natural Science Edition, 2007, 27(3):20-24.
Journal of China and Foreign Highway, 2005, 25(4):182-184.