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To study the propagation behavior of Lamb wave in the plate and graphically show the effect of the initial stress on the dispersion relations, the following material system is considered: we take a steel plate, ,,.
For the given material system and initial stress, there exist only two variables, i.e., phase velocity c and wave number k in Eq.(21), the dispersion relation for and are respectively shown in Fig.2a and Fig.2b.
Acknowledgement This research is supported by Natural Science Foundation of China through grant Nos. 10872157, 11072185.
[3] Z.Q.Su, L.Ye, Y.Lu: Journal of Sound and Vibration Vol.295 (2006),pp.753-80
Wang: International Journal of Solids and Structures Vol.38(2001), pp. 37-51

.:2009CB724405 and the Natural Science Foundation of Shandong Province, China, Grant No.: Y2007F41.
Yanushevsky: Transactions of ASME, Journal of Engineering for Industry Vol. 115 (1993), pp.1-8
Song and et al.: Journal of Materials Processing Tech., Vol. 209 (2009), pp.2585-2591.

School of Materials and Metallurgy, Northeastern University ,Shenyang 110004 2.
Acknowledgment：This project was supported by NSFC (No.20701017 and No.20671047), National Science Foundation of China, and Fundation of Education Bureau of Liaoning Province (No.2008S103 and No.2009S041).
Chen, Thermodynamic Analysis on Direct Alloying of Molybdenum Oxide in BOF, The Chinese Journal of Process Engineering, 2009, 6, 112-116 [8] X.
Tian, Extractive Distillation of Ethanol−Cyclohexane Azeotrope Using Ionic Liquid as Extractant, The Chinese Journal of Process Engineering, 2009, 4, 269-273

The curriculum objectives should cultivate the ability of engineering quality control, progress control and cost control, and pay attention to different key capabilities in different phases of various tasks, for instance, in bid inviting stage, the ability of proper reading of shop drawings, understanding of bidding documents and material collection is emphasized; the business bid values the capability to list construction items and calculate the individual project and price the list, as well as control the budget by properly using quota; while in the technological bid, how to organize and draw the construction plan according to physical conditions, how to determine the construction scheme of key parts of the project, how to arrange and foresee the labor and machinery use to keep up with the project duration and how to make a reasonable construction schedule and draw network diagram of construction progress are the skills that are mostly cherished.
Abilities should be given priority, such as proper reading of shop drawings, understanding of bidding documents and material collection, the capability to list construction items and calculate the individual project and price the items, as well as control the budget by properly using quota and the skill to organize and draw the construction plan according to physical conditions, to determine the construction scheme of key parts of the project, to arrange and foresee the labor and machinery use to keep pace with the project duration and to make a reasonable construction schedule and draw construction progress network diagram(bar chart).
Journal of Liaoning Academy of Education Administration. (2004) [3] Yue Xiuping.
TV University of Science and Technology. (2009) [7] Wang Li, Wang Zheng.
Journal of Lianyungang Vocational and Technical College[J]. (2008)

Present Status about Wastewater Treatment at Highway Affiliated Facilities of China WANG Xinjun, KONG Yaping, CHEN Jiding, LIU Xuexin (Lab of Road Ecology and Pollution Emergency Response, Research Center for Environmental Protection and Transportation Safety, China Academy of Transportation Sciences, MOT, Beijing 100029, China) xinjunwang@126.com, ypkong@126.com, chenjiding@moccats.com.cn, nkone@sina.com Key word: environmental engineering; wastewater treatment; highway; pause rate; service area Abstract.
Materials and methods The investigation covers the Northeast, western, central, coastal areas of China, and total investigation mileage is about 15,000 km, accounts for about a quarter of total highway mileage, involving 64 highways of 16 provinces, 107 service areas, 13 parking areas, 183 toll stations, 37 management center and 419 sets of wastewater treatment equipment.
Journal of Highway and Transportation Research and Development. 2 (2005) 152-154.
China Journal of Highway and Transport. 21(2008) 109-114.

Study on the Reverse Designing for Water Cavity Model of Engine’s Cylinder Head Min Chen a, Xiao Xu Liu b, Jian Ping Tian c 1School of Mechanical Engineering, Sichuan University of Science & Engineering, Zigong 643000, China amin_chen99@163.com, bxiaoxu_liu@163.com, ctjp893@126.com Keywords: Cylinder head, Slicing method, Reverse design, CAD Abstract.
Slicing method is one kind of new reverse design technique developed in recent years, the basic method is that some material is used to fill the part to be measured, which has larger grayscale contrast with the part, then the part is machined with small size plane cutting, the image equipment is used to capture the cutting section image step by step, the data processing software is used to process the image captured, and to restructure the 3D model [2].
Because of the cylinder head is made by cast iron, the contrast between the machined surface and cast iron surface is strong, so the filling material is not used.
Lan: Journal of Computer Integrated Manufacturing System,Vol.13(2007)No.6, p.1142-1147(In Chinese) [3] J.Cao: Journal of Tool Technique Vol.24(2010)No.10, p.83-84(In Chinese) [4] Y.Q.

As a double-layer electrochemical device based on new materials and new manufacturing, super capacitor energy storage can charge and discharge hundreds of thousands of times.
Journal of Power Sources, 2008,185: 1284–1292 [4] Huisheng Zhang, Ming Su, Shilie Weng.
Journal of Engineering for Gas Turbines and Power. (127), 2005
P., and Fletcher, P., 1998, Gas Turbine Performance, Blackwell Science, Oxford, Chap. 8, p. 468

[2] Waterhouse R B: Fretting fatigue (Elsevier Applied Science, England 1981)
[3] Z.R.Zhou: Tribology Vol. 17(9) (1997), p. 272 (in Chinese) [4] Y.Berthier, L.Vincent and M.Godet: Tribology International Vol. 22 (1989), p. 235 [5] S.M.Xi, J.G.Zhang and X.G.Sun, et al: Journal of Materials Engineering Vol. 9 (2003), p.44 (in Chinese) [6] Archard JF: Journal of Applied Physics Vol. 24 (1953), p. 981 [7] Y.Berthier, L.Vincent and M.Godet: Wear Vol. 125 (1988), p. 25 [8] G.J.Tang, Jeon G.Han, Byung H.

Characteristic Analysis of Coal Samples Analysis of X-ray Diffraction Patterns Test conditions: X-ray diffractometer: manufacturer: BRUKER; model: D8 ADVANCE.X-ray tube: voltage: 40kV; current: 30mA; Anode target materials: Cu Target, Kαradiation.
Wuping, "Research on Fine Coal Classified Flotation Flow sheet," Journal of China University of Mining & Technobgy, vol. 34, pp. 756-760, 2003
D, "The significance of collector colloid adsorption phenomena in the fluorite oleate flotation system asrevealed by FTIR/IRS and solution chemistry," Internationa Journal of Mineral Processing, pp. 197-216, 1996
Ming-qiang, "Effect of sodium hexametaphate on separation of serpentine from pyrite," Science Direct, pp. 208-213, 2011

Sulaiman2,b and Bambang Ariwahjoedi3,c 1,3Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, 31750 Tronoh, Perak, Malaysia. 2Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, 31750 Tronoh, Perak, Malaysia.
Materials and Methods The native tapioca starch was modified with borax/di-sodium tetraborate (Na2B4O7.10H2O) and urea.
Shaari, "Characterization of Modified Tapioca Starch Solutions and Their Sprays for High Temperature Coating Applications," The Scientific World Journal, vol. 2014, p.
Sulaiman, "Testing of starch-based carbohydrate polymer coatings for enhanced urea performance," Journal of Coatings Technology and Research, pp. 1-10, 2014/07/19 2014