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In this study, the behaviour of surface roughness near crack tips during cold rolling was investigated on low carbon steel material.
The other material parameters were according to reference [10].
Acknowledgements This research is supported by Australian Research Council (ARC) and National Natural Science Foundation of China (50874028 and 51074051).
Lee, Journal of Manufacturing Science and Engineering Vol. 123(2001), p. 279
Roters, Computational Materials Science Vol. 34(2005), p. 221

Water hydraulic components materials selection is different from hydraulic components, because of the special physical and chemical characteristics of water, causing the destruction of the material in the hydraulic components form is very complicated.
The material selection of different parts in pilot type zero steady-state error of water hydraulic overflow valve in this paper shown in table.
Fund: Supported by Major Program of Natural Science Foundation of Yunnan Province. (2010CD030) References [1] TANG Qun-guo,TAO Jun,WANG Jing,ZHU Yu—quan,Development of a Pure Water Pilot-operated on-off Solenoid Hydraulic Valve,J.Chinese Hydraulics &Pneumatics. 7（2009）68-70
Chinese Journal of Mechanical Engineering. 24(2) (1988) 29-39
Kunming, Kunming University of Science and Technology,2007.

Experiments 2.1 Materials and mix proportions The cementitious materials adopted in this investigation were Chinese standard (GB175-99) [6] P·O42.5 Portland cement(The standard compressive strength is higher than 42.5MPa after 28d’s maintenance) and one-level fly ash.
Air-entraining agent was made by AER Dalian Sika Building Material Co., LTD.
Journal of Yangtze River Scientific Research Institute, 2000;17:17-20[in Chinese]
Journal of Dalian University of Technology 2001; November:716-720[in Chinese]
Journal of Dalian University of Technology,2004:44(4):545-549[in Chinese].

Electrochemical machining (ECM) is well suitable for difficult-to-machine materials.
Where η, I, F, and A are regarded as constant for the material.
Acknowledgements The current study is supported by National Science Council, contract 96-2622-E-152-001-CC3 and 97-2410-H-152-016.
Landolt: Journal of Applied Electrochemistry, Vol. 13 (1983), p. 795
Pa: Journal of Materials Processing Technology, Vol. 532-533 (2006), p. 965

They are unable to understand the fun of science exploration, and lose the motivation of learning.
Fig.1 Assembly design based on SolidWorks Fig. 2 Force analysis based on Ansys Figure 2 is the force analysis of some part designed by the students in the learning of material mechanics and elastic mechanics courses.
Corresponding Author Yi Jiangang, yjg_wh@yeah.net, 18971241633 References [1] Zhang Ximiao, Zhou Yuexi, Educational reform of importing chinese traditional color culture into the design education after cultural innovation, Applied Mechanics and Materials, vol. 201-202, p. 1017-1020, 2012
International Journal of Advancements in Computing Technology, vol. 4, p. 430-437, 2012 [4] H.Liu, J.Wang, N.Kelson.
A study of abrasive water jet characteristics by CFD simulation, Journal of Material Processing Technology, vol. 153, p. 488-493, 2004 [5] Elmagroud Bachir, Ziyyat Abdelhak.

Introduction Micro-contact mechanics is becoming a more and more important issue in materials science and mechanic behaviors.
Experiment The major purpose of this experiment is to find the different material point contact behavior.
References [1] Bin, Li: A review of tool wear estimation using theoretical analysis and numerical simulation technologies, International Journal of Refractory Metals and Hard Materials, 35, 143-151, (2012)
[5] Jingzheng Ren, Suzhao Gao, Shiyu Tan, Lichun Dong: Prediction of the yield of biohydrogen under scanty data conditions based on GM(1,n), International Journal of Hydrogen Energy, 38, 13198-13203, (2013)

Besides, clothing enterprises can realize the clothing material local procurement, which reduces procurement costs.
Continuing to keep advantages of the labor and raw material.
In addition, the industrial region in Fumian is broad and have rich raw materials, so it provides a good resourceful condition for the development of the clothing enterprises in Fumian.
Journal of professional space and time, 2010(5)66-78
Journal of modern guangxi, 2012(11)18-25.

Triterpenoids were found in Schisandra which has been so far confined to Schisandra chinensis Baill, in view of these beneficial effects, a large quantity of pure materials are urgently needed for further studies.
Materials and method Apparatus.HSCCC was carried out with a model TBE-300A high-speed counter-current chromatography (Shanghai, Tauto Biotech, China).
Acknowledgments Financial support from the Liaoning Provincial Science and Technology Department for Doctor Start Funds (NO.20121139) and Youth Fund of SYAU(NO.20101007) are gratefully acknowledged.
References [1] Wei-Lie Xiao, Shi-Ying Yang, Liu-Meng Yang, Journal of Natural Products,73(2010), p. 221
[2] L.Opletal,H.Sovová,and M.Bártlová, Journal of Chromatography.B,33(2004),p.357

Most welded components, with different material strengths, do not have significant different fatigue strengths.
Determine the group classification of the structure based on the number of the agreed stress cycles and the stress spectrum Notch effect of the target area of the used material.
Fatigue strength of a structure depends on material’s mass and the shape and manufacturing of the joints.
Gui: A Study on the Cause and Remedy Measure of Fatigue Destruction in Portal Crane, Journal of South China University of Technology (Natural Science Edition) Vol.29 (2001), p.99(in Chinese)
Dahle: Long-life Spectrum Fatigue Tests of Welded Joints, International Journal of Fatigue, Vol.16 (1994), p392-396

The major world supplier of ferro-niobium and niobium oxide is Companhia Brasileira de Metalurgia e Mineração (CBMM) from Brazil and most of the raw material used in the practical superconducting alloys comes from this source [3].
Materials and Methods Pure hot rolled niobium sheets were cold rolled to 30, 60, 80 and 90% from the initial thickness in successive steps in a laboratory rolling mill.
Journal of the Less-Common Metals, 139 (1988) 107 - 122 2- Hgrmann M., Production of High Thermal Conductivity Niobium on a Technical Scale for High Frequency Superconductivity, Journal of the Less-Common Metals, 139 (1988) 1 - 14 3- Wojcik , C.C., Wah, C., Thermomechanical Processing and Properties of Niobium Alloys, Proceedings of the International Symposium Niobium 2001 Orlando, Florida, USA.
-J and Roters F., Theory of orientation gradients in plasticallynstrained crystals, Acta Materialia 50 (2002) 421-440. 7-Sandim H.R.Z., Lins J.F.C., Pinto A.L., Padilha A.F., Recrystallization behavior of a cold rolled niobium bicrystal, Materials Science and Engineering, A354, 2003, 217-228.