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Friction stir welding usually generates tensile residual stress inside the workpiece which affects the strength in addition to the fatigue life of materials.
Friction stir welding process usually generates tensile residual stress inside the workpiece which affects the strength in addition to the fatigue life of materials.
Strauss: Journal of Manufacturing Processes Vol. 16 (2014), p.56-73
Nakkiew: Applied Mechanics and Materials Vol. 752-753 (2015), p.500-504
Balasubramanian: Materials Science and Engineering A Vol. 459 (2007), p. 7-18.

Introduction With the development of science and technology, brittle material is widely used in many high-tech fields such as aerospace, optics and electronics etc, and the components have strict request for the machining accuracy and surface quality.
In the grinding process of the brittle material, the removal mode of the material affects the surface quality.
The latest grinding research shows that although the brittle materials have great brittleness, they still could be machined in ductile mode with the optimized parameters, by which the surface quality of workpiece can be greatly improved.
The material used in the experiment is K9 glass, and the diamond grinding wheel is used.
Dong and et al: Journal of Material Processing Technology, Vol.168 (2005), pp.75-82

Introduction.Protein adsorption is the first step after material was implanted into human body and the protein layer formed on the surface will induce cell and tissue response to implanted materials.
Materials and Methods: Materials: The natural HA was prepared from pig bones with a calcination method [1].
Lower RA/F and RA/I mean more adsorption of fibrinogen and less albumin deposition on the materials [7].
Tang, et al: Journal of Southeast University (Natural Science Edition) Vol.31 (2001), p.13. 4.
Motoo Niwa, Wei Li and Tsutomu Sato, et al: Bio-Medical materials and Engineering Vol. 9(1999), p.163. 7.

Test Materials.
CF / PES-C material is prepared by solution impregnation and hot compression molding.
Chinese Science Bulletin,1980,25(10):960 [3] Hatakeyama F,Suganuma K,et al.J Mater Sci,1986.21(7):2455 [4] Yozo Nakamara,Hidekazu Suzyoshi.Abvanced materials and processing.June 18-22(1955), Kyongju.Kora 747 [5] Yuan Chaoting, Gao Shanglin, Mou Qiwu.
Wool Textile Journal,1986,(5):11-14 [7] Hu Jianfang, Xia Meiqun, Guo Shujing.
DC Glow Discharge Produced Cold Plasma Employed in the Surface Modification of Macromolecular Materials.

Introduction With the great development of infrastructure in Western China, the soil-stone mixture material was used more and more widely in high-filled foundation engineering.
Acknowledgements This work was financially supported by the scientific research foundation of doctor (2012QD24x) and the National Natural Science Foundation (60879021).
Vol. 2(2009), p. 11 [2] Feng Shi, Fenggen Yang, Zongqi Gao: Journal of Geology.
Vol. 34(2010), p. 73 [3] Mingjie Zhao: Journal of Hydraulic Engineering.
Vol. 25(2008), p. 32 [5] Yuhui Zhang, Xianmin Zhang, Guoyong Chen: Chinese Journal of Geotechnical Engineering.

(7) 3) Formula of axial contact deformation Materials of rollers, screw and nut are steel.
Acknowledgement The research was supported by the China Postdoctoral Science Foundation (20080441191) and the Special Fund for Basic Scientific Research of Central Colleges, Chang’an University (CHD2011JC177).
International Journal of Impact Engineering. 34(2007)1272-1285 [4] Jiang Hongkui, Song Xianchun, Zhang Zuoying.
(in chinese) [5] Song X C, Jiang H K, Xu X R, et al., Analysis of elastic deformation for high speed ball screw based on the finite element method, Journal of Beijing University of Technology.5(2009) 582- 586.
(in chinese) [6] Tanaka N, A New calculation Method of Hertz Elliptical Contact Pressure, Journal of Tribology. 4( 2001) 887- 889 [7] Antoine1 J F, Visa C, Sauvey C, Approximate Analytical Model forHertzian Elliptical Contact Problems, Journal of Tribology.7( 2006) 660- 664

Specifically, for anonymous users and ordinary users, the function of browsing and querying aspects about products, examining details about products is provided; for customer users, the function of browsing and querying products, managing shopping cart, purchasing order and bill of materials etc is provided; for supplier user, the query and confirmation of information about bid and tender etc is also provided; all users could submit registration information on foreground system directly. 2) The background management system.
[2] Minxia Zhang. (2009), the design and realization of B2B business system based on high concurrency and large data volume [J].Journal of Henan university of technology: Social science edition, 5(1):41-44
Hexi university journal, (2)
London: Kluwer Academic Publishers: 19-24 [7] Walter S. (1998).The analytical approach to measuring horizontal market power in electric utility markets: a historical perspective [J].The Electricity Journal, 21(1): 11-23
On the relationship between energy and GNP: a reexamination[J] Journal of Energy and Development 5(1): 326-331

Acknowledgements Authors wish acknowledge the National Natural Science Foundation of China for financial support of this work under project No.51004064.
References [1] Freitag F, Kleinebudde P.How Roll.Compaction and dry granulation affect the tableting behaviour of inorganic materials:comparison of Four magnesium carbonates.Eur.J.Pharm.Sci., Vol.19(2003), p.281–289
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The material of the carrier is ZG42Cr2Ni2Mo with elastic modulus 203.9GPa, poisson's ratio 0.3 and the density 7840Kg/m3.
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The Cascade Three-elements Fuzzy auto-adapted PID Control System for Boiler Mingliang WU 1, a , Lili WEI 1, b, Jiankang HUANG 2, c , Mingyong WU 3, d 1 Key Laboratory of Digital Manufacturing Technology and Application,The Ministry of Education , Lanzhou University of Technology , Gansu Province,730050, China 2 State Key Laboratory of Gansu Advanced Non-ferrous Materials Lanzhou University of Technology , Gansu Province,730050, China 3 Beilie Institute of Technology, Lanzhou City University, Gansu Province,730050, China awml0757@163.com, bwllxlh@163.com, csr2810@163.coml,d wumy _060630@126.com Keywords: Water level for drum boiler; Fuzzy-PID control; Cascade state three-impulse supply water control Abstract.
Zhao: Journal of Hebei University of Technology,Vol. 29 (2000) No.6, pp.97-100 [2] S.T.
Hu, et al: Journal of Wuhan Institute of Technology, Vol. 31 (2009) No. 7, pp.91-94
Liu: Journal of Kunming University of Science and Technology, Vol. 27 (2002) No. 6,pp.80-82 [5] F.R.
Zuo: Journal of North China University of Technology, Vol. 12 (2000) No.1, pp.78-81 [6] Information on http://dena.kntu.ac.ir/~chaibakhsh/PDF/ISME2005-Fuzzy Control of a Supercritical Once-Through Boiler.pdf