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Ultrasound technology widely used piezoelectric materials are artificial firing of polycrystalline piezoelectric ceramics.
Therefore, you can choose the reasonable tool material, the particle vibration in Figure 2-2 Elastic Rod45 steel is an ideal tool ultrasonic machining.Characteristics of ultrasonic machining (1) suitable for processing a variety of hard and brittle materials, especially non-conductive, non-gold scrap materials such as glass, ceramics (pot oxide, silicon nitride, etc.), quartz, germanium, silicon, graphite, agate, gemstones, diamond, etc. .
Figure 2-2 Particle vibration of elastic rod (2) because the tool can be used for softer materials.
Ultrasonic machining low productivity, but its machining accuracy, surface roughness are better, and processing semiconductors, non-conductive brittle materials .
polishing by UEV-CMP[J];Journal of Southeast University(Natural Science Edition);2008-05 [5]MA Qing-shan,XUAN Tian-peng,LIU Jin (College of Material Science and Engineering,Hefei University of Technology,Hefei 230009,China);Effect Factors of Silver Electroless Deposition Rate on Copper Powder[J];Plating & Finishing;2008-10 [6]YUE Jun,LIU Hun-ju(Taiyuan University of Technology,Taiyuan 030024,China);Rotary Ultrasonic Machining Method for Engineering Ceramics[J];Electronics Process Technology;2008-01 [7]CHEN Jie(Department of Mechanical and Electrical Engineering,Suzhou Vocational University,Suzhou 215104,China);Research on large diameter silicon surface grinding using ultrasonic float polishing[J];Journal of Liaoning Technical University(Natural Science);2008-03 [8]YANG Ke-ji,WU Jia-jie(Institute of Modern Manufacture Engineering,Zhejiang University,Hangzhou 310027,China);Study on micro-dissection technique based on ultrasonic vibration[J];Journal of Engineering Design;2009-01 [9]Xu

The deformation and internal forces of beams on non-linear elastic foundation materials were studied.
Journal of Shenyang Jianzhu University (Natural Science Edition), 23(2007)776-779
Journal of Qinghai University (Nature Science Edition), 32(2014)41-44
Applied Mechanics and Materials, 684(2014)11-20
Applied Mechanics and Materials, 684(2014)21-29.

Effect of dynamic change of activities of enzymatic in Sugarcane field with different coating material wei-sheng Shi 1, a, hai-ming Liu, zheng Peng, yu-shu He and fu-jie Zhang 1 Faculty of Modern Agriculture Engineering, Journal of Kunming University of Science and Technology, Kunming 650500,China a shiweisheng888@sina.com Key words: coated material ; activities of enzymatic; dynamic change; Abstract: the effect of dynamic change activities of enzymatic in Sugarcane field with different coating material was studied With three kinds of coated compound fertilizer as raw materials.
In such an environment, the coated compound fertilizer as raw materials of the Idesia polycarpa var.vestita oil can induce the soil enzymatic activities of sucrase more effectively than the coated compound fertilizer as raw materials of polyolefins.
Science， 1990(3)：1-8
Zhou ，R.L.Xie．Study on the Sulfur Nutrition of the Sugarcane and Balance of Sulfur in Soil for Sugarcane Planting Areas[J]．Journal of Environmental Science and Engineering．2010，4(9)：40—43
[6] XIE Ru-lin，TAN Hong-wei，ZHOU Liu-qang，etal．Effect 0f N Fertilizer and P Fertilizer Amount on Fertilizer Use Efi ciency in Sugarcane Yield[J]．Southwest China Journal of Agricultural Sciences，2012，(25)1：198-121．

Antibacterial materials can be divided into inorganic antibacterial materials and organic antibacterial materials.
Inorganic antibacterial materials have the characteristics of non-toxic, harmless and high temperature resistant compared with organic antibacterial materials.
Experiment Experimental materials.
Materials sciences and engineering.2002,(2):298-301 [2] Park Soo-Jin,Jang Yu-Sin.Preparation and characterization of activated carbon fibers supported with silver metal for antibacterial behavior[J].Journal of Colloid and Inter-face Science，2003，261(2)：238-243 [3] Sang Young Yeo，Hoon Joo Lee,Sung Hoon Jeong.Preparation of nanocomposite fibers for permanent antibacterial effect[J].
Journal of Materials Science，2003，38 (10):2143-2147 [4] Hoffman M R,Martin S T,Choi W,et al.Environmental Applications of Semiconductor Photocatalysis[J].Journal of the Korean Ceramic Society,1997,34(1):13-22 [5] Soga M,Naganuma Y.Ag/TiO2 Composite Ultra-fine Particle Studied with FE-SAM[J].J.Surf.Anal.,1999,5(2):325-328 [6] Oh Senung-Han.Preparation and Characterization of Water-soluble Glasses through Melting Process(II) [J].Journal of the Korean Ceramic Society,1997,34(1):13-22 [7] Yi Zhang,Shengliang Zhong,Maisheng Zhang,et al.Antibacterial activity of silver-loaded zeolite a prepared by a fast micro-wave-loading method[J].Mater Sci,2009,44:457-462

Materials and Design, Vol. 60 (2014), p.380-390
Materials & Design, Vol.37 (2012), P. 478-486
Materials and Design, Vol.47 (2013), p. 643-652
International Journal of Mechanics and Materials in Design, Vol. 3 (2006), p. 209-222
(Science Press, Beijing 2010)

Building materials take up a large proportion in the construction cost; ordinary materials take up 30%~40%.
[2]Niu Chunyuan: Journal of Heilongjiang Science and Technology Information, 2006,p.230, In Chinese
[3]Yan Ling and Yin Yilin: Journal of Science Press, 2010, In Chinese
[4] Wang Jian: Journal of Shanxi Architecture. 2011(30),p.226-227, In Chinese
[5] Zhang Yong: Journal of International Business Accounting. 2011,p.20-22 , In Chinese

Fundamental solutions of a normal force in semi-infinite coating materials.
Part II: solution of force acting in the interior of substrate and at interface Zhen Yanga, Shiqun Guob School of Civil Engineering & Architecture, Southwest University of Science and Technology, China araineryoung@gmail.com, banovabb@yahoo.com.cn Keywords: Coating Materials, Interface, Fundamental Solution, Image Point Method Abstract.
Introduction There are many applications of film-coated materials in the engineering to improve the surface properties.
Since there is no singular point except the loading point in the materials, the functions and of material “I” and “II” shall not contain the terms related to the image points located in their own domains.
Mutoh: Journal of Elasticity, Vol. 73(2003): p. 147-164

Influences of materials coefficients gradient variation patterns on cutoff-frequencies of SH-waves are also revealed.
Tani: Journal of Applied Mechanics, Vol. 116 (1994), p. 440
Lam: Journal of Sound and Vibration, Vol. 236(2), (2000), p. 307
Wang: Smart Materials and Structures, Vol. 14 (2005), p. 137
Wang: International Journal of Engineering Science, Vol. 39 (2001), p. 1271.

This method is called similar material simulation.
The similar material chosen in model reflect the accuracy of similar material simulation.
References [1] MA Yu-lin; ZHANG Yong-li: Simulation Experiment Research on Mining Coal in Deep Inclined Thin Coal Seam,Coal,vol.3(2008) [2] Yong-jian Zhu and Gang Peng: Similar material simulation research on movement law of roof over-lying strata in stope of fully mechanized caving face with large mining height, Journal of Coal Science and Engineering (China), 2010, Volume 16, Number 1, Pages 6-10 [3] Tianbin Li, Xiangfeng Wang and Lubo Meng: A physical simulation test for the rockburst in tunnels, Journal of Mountain Science, 2011, Volume 8, Number 2, Pages 278-285 [4] A.
Kurtukov: The stress-deformation state of the roof rocks during working of a steeply dipping or inclined seam, Journal of Mining Science, 1973, Volume 9, Number 1, Pages 25-29 [5] A.
Levshin: The stress-strain state of a rock mass during working of an inclined coal seam, Journal of Mining Science, 1975, Volume 11, Number 6, Pages 614-621

The effects of two types of emissive materials on operation properties of M type cathode were also investigated.
To remove residual organic materials, the sample was heat treated at 500 °C for 2 h and nano emissive materials were produced.
During the impregnating process, it was observed that the melting point of emissive materials produced by the sol-gel combustion was lower than that of emissive materials synthesized by the ball-milling method, which is about 100 ͦC.
Ohlinger, The metallurgical properties of tungsten–iridium cathodes, Applied Surface Science. 146 (1999) 39-46
Shiezadeh, Synthesis of nanocrystalline electron emissive materials with homogenous composition in nanoscale, International Journal of Chemical Engineering and Applications. 4 (2013) 88-91