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The result indicates that the point of the highest temperature and the maximum thermal stress locates on the middle nose of fire deck; under thermal-mechanism coupled effect, the points of maximum stress locate on the interface of bolt head and screw of cylinder head and on the middle nose of fire deck; the maximum pull stress the cylinder head undertook is less than that the material can survive; the distortion of the cylinder head is very small, thus has little influence on the fabrication of other accessories, and the global distortion of cylinder head performs symmetry.
In the global stress field of cylinder head, the maximum pull stress located on the interface of motherboard and upper cooling jacket which was 110.982MPa and didn’t exceed the concessional pull stress 300MPa[7] of the cylinder head material(HT300CuCr).
Journal of Chongqing Institute of Technology(Natural Science). 2008，22（10）：24-27 [3] Zhang Ping.
Huazhong University of Science and Technology. 2004：3-4．

After forging these two materials a small diffusion zone of about 150 µm was observed.
Introduction Forging is one of the oldest techniques for processing metals with the intention to shape and join various materials [1].
Wadsworth, Ancient blacksmiths, the Iron Age, Damascus steels, Journal of Materials Processing Technology 117 (2001) 347-353
Haubner, Characterisation of steel composites produced by the Damascus technique, Materials Science Forum 825-826 (2015) 852-859
Haubner, Microstructural Characterization of Ferrous Materials Forged by the Damascus Technique, Materials Performance and Characterization 5 (2016) 617-626

The adaptability tests of cementing materials with admixtures show that the dispersing ability was almost not influenced but the retaining ability of paste flowing was evidently enhanced if the substitution of polycarboxylate water-reducers have been to 20 %.
It can be added to the polycarboxylic water-reducing agent or added to raw materials with other admixtures.
The ratio of water to cementitious material is 0.29.
Acknowledgements This work was supported by Beijing natural science foundation (2112012) and Beijing municipal education commission foundation (KM201210016009) and Doctor foundation (101000501).
Journal of building materials Vol.1 (1998), p.1.

Experimental Materials.
A Microbial Polyhydroxyalkanoates (PHA) Based Bio- and Materials Industry, Chem.Soc.Rev., 2009,38:2434-2446
A Study on PP/POE/Talc Ternary Composites, Polymer Materials Science & Engineering 2006, 22(3):214-218
Improving Mechanical Performance of Injection Molded PLA by Controlling Crystallinity, Journal of Applied Polymer Science, 2008,107(4):2246–2255
The Surface Modification of the Superfine Talc Powder and Its influence upon the PP, Polymer Materials Science & Engineering 2007, 23(3):143-147.

The oil composition of raw materials for producing petroleum sulfonate is complicated, and the sources for sulfonate are different, so the petroleum sulfonate is made up of complicated mixture and different molecular structure.
Petroleum science and technology. (2006), p:1469-1476
Journal of Xi′an Petroleum Institute (Natural Science Edition) (2003) p: 21-26
[8] Caili Dai, Fulin Zhao, Jianhong Xiao..Studies on the reutilization techniques of the residual polymer information after polymer flooding.Journal of Xian Shiyou University (Natural Science Edition) (2006) p: 56-60.

Influence of Flux on Sintering Property of Imported Hematite Ore Jinzhu Zhang1, a, Jun Huang2, b College of Materials and Metallurgy, Guizhou University, Guiyang 550003, China ajzzhang@gzu.edu.cn, bhuangjun172634@163.com Corresponding author E-mail address: huangjun172634@163.com Key words: sintering; hematite; flux; compressive strength Abstract: The microstructure and compressive strength were investigated by means of optical microscopy, X-ray diffraction, and tensile testing machine.
This work was supported by the national Science Foundation of China (50664001).
Journal of University of Science and Technology Beijing, 2005, 27(3):291-293.
Journal of Northeastern University (Natural Science), 2009. 30(1): 86-89.

[5] Wu Bo: Mechanical properties of RC structures after fire (Science Publishers, Beijing 2003), in Chinese
[6] YAN Hui-qun, et al.: Journal of Sichuan University Vol. 40(2008), p. 74–78, in Chinese
Bazant and M.F Kaplan: Material Properties and Mathematical Models (Addison-Wesley, London 1996)
[13] Emmanuel E. et al.: Journal of Performance of Constructed Facilities Vol.12 (1998), p.77–84
[15] A.W.Adamson: Physical Chemistry of Surfaces (Science Publishers, Beijing 1985), in Chinese

School of Chemistry and Materials Science, Liaoning Shihua University, Fushun 113001, China *Corresponding author: Davidfine@163.com, Slzang@lnu.edu.cn Keywords: Pyridine; Rhenium; ionic liquid; property; structure Abstract.
Acknowledgement This project was supported by NSFC (21071073, 21003068), National Science Foundation of China, Fundation of Education Bureau of Liaoning Province (No.2008S103, No.2009S041), and Liaoning University research funding.
Wang, SCIENCE IN CHINA.
Deng, Journal of Molecular Catalysis A: Chemical, 2006, 250: 163-168
Wang, Chinese Journal of Chemistry, 2010, 28: 179-182

This new field is not only supported by computer science, but also includes sociology, psychology, organization theory and anthropology etc.
It supports user groups of information between various media asynchronous interaction; learning materials, operations and feedback can be done through the news bulletin [6].
Journal of Eastchina Normal University(Natural Science),. 2010.12 In Chinese [4] Wang Chun-zhi.
Research on Application of CSCW in Remote Education [J] Computer Technology and Development.2006.6 In Chinese [5] WangQinghui.Computer Supported Cooperative Work and Its Application in Teaching [J] Journal of KunMing University of Science and technology,2004,(24):137－140 In Chinese [6] Zhu, H and Zhou M C.

Delivering Way of Horizon Disturbance to Vertical Vibration in Temper Rolling Mill XIONG Zhi-qiang1，ZENG Chun2，LI You-rong1，WANG Zhi-gang1， XIONG Zhibin3 1 The key laboratory for metallurgical equipment and control of ministry of education, Wuhan University of Science and Technology, Wuhan 430081, China 2 School of Logistics Engineering, Wuhan University of Technology, Wuhan, 430063,China） 3 Liuzhi secondary.
Fig3: The oil wedge at the entrance to rolling deformation The entry thickness in rolling deformation zone [3～5] is described as Eq.(16): （16） Where, is mixed factor, dynamic viscosity of lubricant oil in constant pressure, viscosity coefficient by pressure, input velocity of workpiece, the surface velocity of roller, the length of deformation zone, Plane deformation resistance of materials, back tensile stress.
Acknowledgement XIONG Zhi-qiang is with the key laboratory for metallurgical equipment and control of ministry of education, Wuhan University of Science and Technology, Wuhan, CO 430081 China (corresponding author to provide phone: +86-027-68862292; e-mail: bear30@126.com).
Review of Chatter Studies in Cold Rolling, International Journal Of Machine Tools & Manufacture, 1998, 38(1):1499-1530 [2] Duan Ji-an, Yan Hengzhi, Mao Minzhi etc.
Journal Huazhong University of Science & Technology, 2001, 29(10):62-64 [3] Tlusty J, Critchley S, Paton D.