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Among design essentials, steel, the choice of connecting materials and wall materials, node design, the waterproof design of toilet and kitchen, floor systems design, the corrosion of steel structure, steel welding design and so on are mainly introduced.
In the 21st century, the rapid development of steel industry has provided all kinds of materials for the steel structure housing, which powerful promoted the development of steel structure housing.
Generally speaking, in order to give prominence to the light-weight of steel structure, decorate flexible, good modified characteristic, the steel structure housing should unfavorably use traditional clay bricks or other self-respect larger materials, usually the lightweight materials is used.
In other building system, waterproof adopt structural waterproof materials and waterproof.
Journal of Shenyang University, Vol.19,No.6,427, 2007

All the relevant data are collected through the literature reviews from books and journals.
The term aerodynamics can be defined as the science of air in motion.  
Material and Method The aim of this project is to calculate the coefficient drag CD for national car Proton PREVẾ.

Introduction In recent years, nanostructural materials such as nanorods, nanowires or nanofibers have been actively studied due to both of their scientific interests and potential applications in nano devices.
Variety of methods suggested for the preparation of such materials, including deposition methods, ball milling technique, self- assembled mono layers and sol-gel process. [1-2] The production of zinc borate from boric acid and zinc oxide was studied using different approaches [3–4] in the literature.
Electrospinning is a simple and inexpensive method for generating ultrafine fibers of various types of materials including polymer, polymer/ ceramic composites and ceramic fibers.
Materials and Methods Nanofiber production was carried out in three stages.
Çolak, Electrospinning and characterization of alumina borosilicate ceramic nanofíbres, Materials Science-Poland, Vol. 25, No. 4. 2007 [13] K.

The agreement between the computing and experimental results shows the model developed in the paper can be effectively used to study the friction behaviors of the sweat self-lubricating composite at high temperature. 1 Introduction With the development of modern science and technology, more and more machinery parts operate in extreme hot environments, which promote the studies of high temperature self-lubricating materials.
Because the lubricant of the composite is in the molten state during sliding at high temperature, the entire load is carried by the matrix material.
Acknowledgement The authors would like to thank National Natural Science Foundation of PR China for the financial support (ID 50775168).
Journal of wuhan university of technology. (2006), 28(6): 20-23
(Shanghai Science and Technology Press, Shanghai China 1984).

Effects of Ca on Microstructure and Mechanical Properties of Mg-5.5Al-1.2Y Alloy Wenjian Liua, Quan-an Li, Zhi Chen, Xiaojie Song School of Materials Science and Engineering, Henan University of Science & Technology, Luoyang 471003, China aliuwenjian1986@126.com Key words: Ca, Mg-5.5Al-1.2Y alloy, Microstructure, Mechanical properties Abstract: The microstructure and mechanical properties of aged Mg-5.5Al-1.2Y magnesium alloy with Ca addition are investigated.
Before the experiment starts, all the materials should be dried at 200℃.
Materials Science Forum, Vol 419-422(2003), p. 57-66 [2] S.J Guo, Q.Z Yue, J.Z Cui.
Materials Review, Vol 18(2004), p. 44-46 (in Chinese) [3] W.Q Yun, T.J Zhan, D.J, et al.
Chinese Journal of Nonferrus Metals, Vol 14(2004), p. 1443-1450 (in Chinese) [5] X.Q Wang，Q.A Li，X.Y Zhang.

MoSe2 possess interesting optical and photo-absorption properties [1-5].These semiconducting materials belong to TMDCs group and are found to possess layered structure.
In recent years, intrinsic conducting polymers with conjugated double bonds have been attracted much attention as advanced materials.
[5] S.Y.Hu, C.H.Liang, K.K.Tiong andY.S.Huang,Journal of Alloys and Compounds, 442 (2007)249
Brabec, Advanced Materials, 18(6), (2006) 789
Patila * a Materials Research Laboratory, School of Physical Sciences, Solapur University, Solapur, India; b Crystal Technology Section Soft Nanoscience Letters, 2011, 1, 6-10 [17] E.

Because of the material of plate is considered as steel, the elastic modulus and density can be obtained as and respectively.
The material of base layer is steel, so its parameters are same as those of the plate.
Journal of sound and vibration, Vol.311(2008),,p.824-842
Journal of Sound and Vibration,Vol .291(2006), ,p.902–931
Information Sciences, Vol,178(2008),p.3096–3109 [13] L.J.

Decision Sciences, 2007 pp. 131-156
International Journal of Production Economics, 2008 pp. 261-273
Journal of Business Logistics, 1997 pp. 67-89
European Journal of Operational Research, 2006 pp. 211-225
International Journal of Production Economics, 2006 .pp 99-108

Acknowledgements This study is financially supported by National Nature Science Foundation of China (NSFC 10372076) References [1] Balas G J, Doyle J C: Journal of Guidance, Control, and Dynamics.
Vol. 17-2 (1994), p. 370-377 [2] Wang J.F., Lin C.C., Chen B.L: International Journal of Solids and Structures.
Vol. 40 (2003), p. 255-265 [3] Ryu J, Kim S S: Journal of Mechanics of Materials and Structures.
Vol. 22-2 (1994), p. 221-227 [4] Xiongwen Zhang, Jun Li, Hui Xu, Guojun Li: Journal of Sound and Vibration.
Vol. 297(2006), p. 627-634 [5] HUANG Zhixiang, XU Hui: Journal of Xi'an Jiaotong University.

Therefore, new methods are developed, materials are created and more complex tools are used for the development of increasingly optimized products.
International Journal of Heat and Mass Transfer, volume 42, 1945-1956, 1998
International Journal of Physical Sciences, vol 8 (43), páginas 2011 a 2022; 2013
International Journal of Refrigeration, volume 27, páginas 422 a 432, 2004
Journal of Physics, Conference Series, volume 395, conferência 1, 2012.