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Experimental Materials.
Both the breaking strength and the breaking elongation were tested by using H-10K-L electronic universal material testing machine (in accordance with GB 11048-89, P.R. of China).
Acknowledgements This work was supported by Shaoxing Science and Technology Plan project under contract grant number 2012B70015.
Dyeing and Finishing Journal,33(2011), 1-6 [5]H.

Moreover, the NC machining simulation will not have any accident, to enable students to relax the requirements of safe production, so when they are training to program and operate in the application of CNC machining simulation, they will tend to ignore the choice of cutting amount, such as cutting depth, spindle speed, feed rate, definition of blank material and tool path reasonable arrangements etc.
Although the simulation process full display machining process, but after all, just the simulation process, no workpiece materials, cutting tool rigidity and so on consideration, some cutting path in the simulation seem perfect, but in reality are hard to achieve.
References [1] Wei Min, Feng Jing an, Hu Rong, Wang Lei, Studies and Implementation on NC Milling Machining Process Simulation System Based on VB: Journal of Shihezi University (Natural Science) Vol. 98-100 (2008)

Structure diagram which Pyramidal Angle is 30°as shown in figure1-1: Figure 1-1 Schematic drawing of mufler structure Muffler material is Q235 steel, Physical parameters as shown in table 1-1[2].
Table 1-1 Muffler material properties designation elasticity modulus /GPa poisson ratio / density / yield strength /MPa Q235 210 0.3 7800 235 Finite element model of muffler that was Defined the type of unit by SHELL63 of ANSYS and was meshed as shown in figure 1-3.
Defined the material properties, input air density of 1.225 and speed of sound 340 and absorbing boundary condition MU=0; loaded and obtained different frequency sound pressure diagram.
The application of ANSYS in the resistant muffler analysis[J].Journal of Jiangsu University(Natural Science Edition) 2003(5) [4] Gu Bailiang.

German scholar M.Kronenberg is the first one to study the relationship between the type of cut and damage in end-milling,he believes,S cut type and STUV cut type,the tool breakage is more serious,U cut type and UV cut type ,the tool breakage is lighter.But no matter what contact form,when the tool cut into the workpiece,beause the blade is not sharp ,the tool will push the cutting lay material but not shear the materia,this will cause a lot of impact in the process of cutting into the workpiece[1].End milling cutter cutting into workpiece is shown in Fig.1.
The experiment and result analysis of the system Design of experiment By collecting and analysing the experimental result,realizing the machine tool's cutting force signal on-line in order to provide the basis for tool selection.There are many factors can influence the milling force:workpiece materials,cutting parameters,cutter geometrical parameters,tool wear,etc.NC milling machine's cutting parameters include cutting speed vc,feed speed vf,back engagement ap and working engagement ac.The method of choosing cutting parameters allows for tool durability, first choose back engagement or working engagement,then determine the feed speed, finally determine the cutting speed.
The internatioal journal for manufacturing science and technology.2000,(2):101-106 [6] Ning Fan , Peiquan Guo , Zihui Gao .

Growth and characterization of urea doped p-type ZnO thin film grown by pulsed laser deposition SAYANEE Majumdara and PALLAB Banerjib Materials Science Center Indian Institute of Technology Kharagpur Kharagpur- 721302, India a sayanee_m@yahoo.co.in b pallab@matsc.iitkgp.ernet.in Keyword: p-type ZnO, Antisite defect, Resistivity, Carrier Concentration, Hall mobility.
(i) dopants may be compensated by low-energy native defects, such as Zni or VO, or background impurities such as H, (ii) low solubility of the dopant in the host material and (iii) deep impurity level due to lattice stressing causing significant resistance to the formation of deep acceptor level.
Coutts: Journal of Crystal Growth.

Thermal collectors were used as the solar energy absorption material.
Abdallah: A programmable Logic Controller to Control two axis Sun Tracking System, Information Technology Journal, Asian Network (2006), 5(6): P.10831087
Of World Academy of Science, Engineering and Technology, Vol.31 (2008).
Yousafzai: A Simple Photovoltaic Tracking System, Solar Energy Materials and Solar Cells.

A Simple Analysis of Applying and Meaning of Estimate of the Urban Living Environment Yan Geng School of earth and environment Anhui University of Science and Technology Huainan, China gengyan2013@sohu.com Keywords: Environmental evaluation, Ecological suitability, Environment protection and safety planning, project planning Abstract.
How to use green building materials?
At present the main methods are as follows: (a) The comprehensive exploitation and utilization of solar energy (b) Living environment of green space design (c) The use of exterior wall thermal insulation material Urban living environment design and recommendations Urban residents living environment quality mainly includes: air environment quality, the surface water environment quality and acoustic environmental quality objectives.
The Journal of Asian Studies.2009

International sports competition is not so much a player physical ability and the technical competition; it is the competition of science and technology between countries.
[M] Beijing: Mechanical Industry Press [2]AronoldM.Kuethe, Chuen -yen Chow 1 Yu Zhiliang, et al [M] air dynamics Beijing: viatiaon professional teaching materials editing Group Publishing [3] Series of wind tunnel test technology (Northwestern Polytechnical University, [M]1 Xi'an: West Industrial University Press [4] Li Liangbiao, Lv Qiuping, sports biomechanics [M]1 Beijing: Beijing Institute of Physical Education Publishing [5] Zhou Jihe.
Beijing: people's sports press.2003:10-15 [7] Human anatomy (higher school teaching material) [M].
Journal of Archery Sports Institute, 1996, 5 (2): 60-62

Sunscreen is the most widely used tool to provide sun protection, followed by textile materials.
Fibre types and its state affect a textile material in providing sun protection [1, 2], therefore, the relationship between fibre content and UPF would be studied in this paper.
Saravanan: AUTEX Research Journal. 7(1) (2007), p. 53
Hunter: Textiles for Sustainable Development (Nova Science Publishers, Inc., New York 2007) [7] K.

Nowadays, the interaction of art and science has becoming a trend in the field of design.
Both the achievement of technology and scientific research methods have devoted brand-new usable materials and ways of thinking to design.
Proportion adjusting may include different aspects, such as size, position, material, thickness, curvature, principal or subordinate, which are hard to be handled.
Journal of Textile Research, (2006), Vol.27, No.1, p14-15