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The project requires a lot of financial, material and labor resources, which not only needs the support from the state and government, but also is a project which the whole society should pay attention to and national sectors should make joint efforts to tackle.
Furthermore, there is a serious shortage of funding for sports in rural areas, sports facilities are both lacking and old, and local governments pay more attention to material production and economic development than the fitness and health of farmers.
Journal of Chinese sports science and technology, 2008, 44 (6): 15-18
Journal of Beijing sport university, 2007, 30 (6): 745-747.

Fig.2 Lapping tracks of the abrasives Obviously, the further away from the center of the workpiece, the more material will be abraded off.
It is concluded that the further away from the center of the workpiece, the more material will be abraded off; the more discrepant the workpiece and the lapping plate have in the angular velocity, the lower the uniformity is.
Acknowledgment This project is supported by National Science Foundation of China (No. 50705088) and National Program on Key Basic Research Project(No.2006CB932607).
References [1] C.X.Wang: Journal of the Changchun University,Vo1.1(1979), pp.46 -54
[2] D.Yang,X.H.Wen: Chinese Journal of Mechanical Engineering, Vo1.2(1997),pp.101-105

Perlis, Malaysia. 2School of Material Engineering, Universiti Malaysia Perlis, P.O Box 77, d/a Pejabat Pos Besar, 01007 Kangar.
Material and Methods 2.1 Data Annual hourly monitoring records for PM10 in Seberang Perai, Penang were selected to carry out the simulation of missing data.
Australian and New Zealand Journal of Psychiatry, 39, p. 583-590
Journal of Atmospheric Environment, 38, p. 2895-2907
[4] Yahaya, A.S, Ramli, N.A. and Yusof, N.F., (2005) Effects of Estimating Missing Values on Fitting Distributions: International Conference On Quantitative Sciences and Its Applications, 6-8 December 2005, Penang, Malaysia : Universiti Utara Malaysia.

Introduction With the continuous development of fractional calculus theory, Applications of fractional calculus has gradually penetrated into many engineering fields, For example, the memory of various materials, mechanics, control, acoustic, chemical polymerization and so on.
Journal of Beijing Chemical Technology University: 06.04.(2008) in Chinese
Journal of Central South Nationalities University: Natural Science: 3：121-123.(2001) in Chinese [5] Zhao Chunna, Yingshun Li, Tao Lu.

Flexible Dynamic Analysis of Hydraulic Excavator’s Boom De Xin Sun1,2,a, and Xin Hui Liu1,b 1 College of Mechanical Science and Engineering, Jilin University, Changchun, 130022, China 2 Base Department, Changchun Institute of Engineering Technology, Changchun 130117, China a sundexinaa@126.com, b liuxh@jlu.edu.cn Keywords: Hydraulic Excavator, Dynamic Simulate, RecurDyn, Finite Element Analysis.
There were 14208 elements and 16772 nodes in the meshing, the element type was soild185, the material was Q345, the yield strength was σs=345 MPa, elastic modulus was E=2.1×105 MPa, and the Poisson’s ratio was μ=0.3.
The maximum of the stress was 144 MPa, far less than the allowable stress of the material, and the excavator can withstand shock, vibration and the other factors.
Yang: Journal of Hebei University of Technology Vol. 37 (2008), p. 59 (In Chinese) [5] L.Y.
Fu: Journal of Liaoning University of Petroleum & Chemical Technology Vol. 28 (2008), p. 46 (In Chinese) [6] Tongji University: Single-bucket excavator (China-Building Industry Press, China 1986).

Finite Element Analysis of Mechanical Properties of Reinforced Concrete Cross-Shaped Column Node Chunxiu Han1,2,a, Donghua Zhou1,b, Yanhua Yang2,c, Shengjiang Huang1,d 1Faculty of Civil Engineering, Kunming University of Science and Technology, Kunming 650504, Yunnan, China 2Architectural Engineering Faculty, Kunming Metallurgy College, Kunming 650033, Yunnan, China a593416010@qq.com, bstahlverbundbau@yahoo.com.cn, cynyyh@126.com, dhcx4803@163.com Keywords: cross-shaped column, mechanical property, finite element analysis Abstract.
Study on concrete material constitutive relation of the stress and the plastic deformation to obtain parameters more reasonable and accurate determination are suggested.
In the process of numerical calculation, according to the equivalent uniaxial compressive stress-strain curve characteristic value, nonlinear performance of concrete material will be study next, which is bound to have an impact the results.
Journal of Earthquake Engineering, 2002, 6(1):75-100
[5] Qi Wu-bo, Hiroaki Mimura, Streamline geometry optimization in beam-column connection, Journal of Structural Engineering, June,2002: 829-83l.

Introduction With the development of science and technology, the techniques of enhanced oil recovery [1-4] develop rapidly especially at the aspect of the tertiary oil recovery.
Materials and Methods A Laser particle size analyzer (Better size 2000) was used to measure the size of particles.
References [1] M.Moan, G．Chauveteau,S．Ghoniem．Entrance effect in capillary flow of dilute and semi-dilute Polymer sorutions[J]．Journal of Non-Newtonian.
Fluid Meehanics, 1979，5:463-474 [2] G．Chauveteau,M．Moan, A．Magueur．Thickening behavior of dilute polymer solutions in Non-inertial elongational flows[J]．Journal of Non-Newtonian Fluid Mechanics,1984, 16:315-327 [3] D．M．Jones,K．Walters．The behavior of polymer solutions in extension-dominated flows with applications to enhanced oil reeovery．RheologieaActal989, 28:482-498 [4] Wang Demin, Cheng Jiecheng, etal．Viscous-elastic Polymer Micro-scale displacement efficiency in cores[J]．SPE63227, 2000:1-10.

Yang1*,b and M.B.Xia1,c 1Research Center for Intelligent Materials and Structures (CIMS), Huaqiao University, China a yanglxm@hotmail.com, b xmyf@hotmail.com, c mbxmjm@hotmail.com Keywords: Hydro-pneumatic suspension, Non-linear characteristic, Dynamic Simulation Abstract.
Acknowledgements Support from the National Natural Science Foundation of China (NSFC): 61374144 are gratefully acknowledged.
Padmanabhan, Hydro-gas suspension system for a tracked vehicle: Modeling and analysis, Journal of Terramechanics. 48 (2011) 125–137
-Y., Su, Pitch plane analysis of a twin-gas-chamber strut suspension, Proceedings of the Institution of Mechanical Engineers, Part D: Journal of automobile Engineering. 222 (2008) 1313-1335

The most important characteristic of SLS is that a wide range of materials can be used in SLS, for example wax powder, PS, ABS, PC, PA and metal powder etc.[3], but high price of materials is the bottleneck to constrain SLS application widely, so reducing the cost of materials has always been a research focus in this area.
The Present Appl ication and Materials for Selective Laser Sintering.
Journal of Harbin University of Commerce(Natural Sciences Edition). 2008, 24(6): 730-732
Advanced Materials Research Vols. 113-114 (2010) pp 1845-1848
Advanced Materials Research Vols. 113-114 (2010) pp 508-511.

Introduction Development of new materials is frequently focused on increasing their mechanical, tribological and corrosion and wear-resistance characteristics.
Recently, surface modification of engineering materials has become a fast developing field of materials science.
One solution to this problem is finding materials on the surface of which the tribofilms increasing their resistance to wear during the friction are formed.
Barszcz: Study of coatings obtained from alloy Fe-Mn-C-B-Si-Ni-Cr, Advances in Science and Technology Research Journal Nr 31, Vol. 10 (2016), p. 194-198 [5] G.S.
Mishina: On characteristic features of alloying HSS-based deformed compound powder materials with consideration for tool self-organization at cutting 2.