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Analytical model The analytical model based on material is usually fiber section model.
The accuracy of a fiber section model is almost entirely depended on the ability of constitutive material models to represent the overall inelastic behavior of the member.
Acknowledgements This work was financially supported by Basic Scientific Research Business Expenses of Gansu Higher Education and Gansu Construction Science and Technology Key Project (JK2009-22).
Wang: China Civil Engineering Journal.
Mohle: Journal of Structural Engineering.

Multi-ribbed composite wall structure system proposed by Xi' an University of Architecture and Technology has ecological and shock absorption features, adapts to China's national conditions, meets requirements on energy-saving and wall materials innovation.
Table 1 Basic parameter of test specimen Specimen Identifier Influence factors Section width b(mm) FD-11 Section width of frame beam and column 70 FD-12 50 FD-13 40 IFD-11 Infilled material strength and elasticity modulus of frame beam and column section 80 IFD-12 70 IFD-13 60 IFD-14 50 IFD-15 40 The production process of FD series is: reinforcement banding assembling formwork pouring concrete.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (50878021 and 50908188).
Later Stiffness of Infilled Frames, Journal of the Structural Division, ASCE, December , 1962, pp.183-199 [2] Roger D.
Bennett: In-Plane Behavior of Structural Clay Tile Infilled Frames, Journal of Structural Engineering, June 1999，pp.590-599 [3] Yue YF.(2004).

For a design of heat exchangers the factor such as heat transfer coefficient, friction, and pressure drop, temperature withstanding ability, material selection, flow analysis, thermal analysis and many more parameters has to be considered.
Conference on Modeling, Optimization and Computing, Procedia Engineering 38 (2012) 685-690 [3] R.Pachaiyappan, R.Gopinath, Dr.S.Gopalkannan, Processing Techniques of a Silicon Carbide Heat Exchanger and Its Capable Properties- A Review, Applied Mechanics and Materials Vol. 787 (2015) pp 513-517 [4] I.Kocioglu, Ahmet Cansiz, Mansour Nasiri Khalaji, Experimental investigation for optimization of design parameters in a rectangular duct with plate-fin heat exchanger by Taguchi method, Applied Thermal Engineering 50 (2013) 604-613 [5] J.M.Reneaume, Optimization of plate fin heat exchangers-a continuous formulation, Institution of Chemical Engineers Trans IChemE, Vol 78, Part A, September 2000 [6] Bayram Sahin, A Taguchi approach for determination of optimum design parameters for a heat exchanger having circular-cross sectional pin fins, Heat Mass Transfer (2007) 43:493–502 [7] Seong Won Hwang, Dong Hwan Kim, June Kee Min and Ji Hwan Jeong1(2012), “CFD analysis of fin tube heat exchanger
with a pair of delta winglet vortex generators”, Journal of Mechanical Science and Technology Vol. 26 (9), pp 2949-2958 [8] Takeuchi Y, Park C, Noborio K, Yamamoto Y, konishi S “ Heat transfer in SiC compact heat exchanger”, Fusion engineering and designs, vol. 85 (2010) pp 1266-1270 [9] Jainender Dewatwal Design of compact plate-fin heat exchanger a thesis NIT Rourrkela [10] Chi-Chuan Wang, Kuan-Yu Chi (2000), “Heat transfer and friction characteristics of plain fin-and-tube heat exchangers, part I: new experimental data”, Int.
Heat and Fluid Flow 18: 530-537, 1997 [13] Jiin-Yuh Jang, Ling-Fang Hsu, Jin-Sheng Leu, Optimization of the span angle and location of vortex generators in a plate-fin and tube heat exchanger, International Journal of Heat and Mass Transfer 67 (2013) 432–444 [14] Jiangfeng Guo, Xiulan Huai, Optimization design of heat exchanger in an irreversible regenerative Brayton cycle system, Applied Thermal Engineering 58 (2013) 77-84.

As the energy of surface acoustic waves (SAW) almost concentrates closely to the surface within one wave length, the lower frequency SAW are prone to be affected by the substrate, while the higher are dominated by the material properties close to the surface [3].
In order to attain thin films’ properties and even to investigate “higher order” propagating surface modes (Sezawa) with different velocities in layered materials, it’s necessary to work with high frequency acoustic waves [4].
Acknowledgment Acknowledge fund from The National Science Foundation (60723004).
Journal of Applied Physics, Vol.100, No.7, pp.074315(1-6), 2006
Journal of Experimental Mechanics, Vol.12, No.1, March 1997

Micro alloyed steels have a much better formability compared to conventional steels, which provides saving on material for the production of machine structures and then switching from hot to cold forming and easier production of parts with complicated shapes while downsizing operations.
Materials and Experimental Details The base metal and filler.
Acknowledgments The authors are grateful to the Ministry of Education, Science and Technological Development of Republic of Serbia for financing the projects TR 34016, OI 174004.
Arsić, Filler Metal Influence on Weld Metal Structure of Micro-Alloyed Steel, manuscript number: 201039, Supplement to the welding journal, Sponsored by the American Welding Society and the Welding Researc Council, vol.90, (2011), pp.55-62
Janjušević, The advantages of using activated flux-cored wire compared to solid wire in the MAG welding process from the aspect of metallurgical characteristics, Metallurgy-Journal, 53(2014) 3. pp.361-364.

Meanwhile, SKD-11 (JIS) (90 x 60 mm and 10 mm) with 55HRC hardness was used as the workpiece material.
A jig was prepared help set and clamp the workpiece material during drilling operations.
This is related to the heat generated on the drill, dynamic behavior, and material removal rate that occurred during drilling operation [4, 6].
Del Toro, A classic solution for the control of a high-performance drilling process, International Journal of Machine Tools and Manufacture. 47 (15) (2007) 2290-2297
Mohamad, Surface roughness optimization in drilling process using Response Surface Method (RSM), Journal Technology (Sciences & Engineering). 66:3 (2014) 29–35.

Experimental Procedures Material Used.
Angel: Journal of Iron and Steel Institute, Vol. 177 (1954), p. 165
Shimizu: International Journal of Applied Electromagnetics and Mechanics, Vol. 15 (2002), p. 309
Iwasaki: Proc. of IUTAM Symposium on Mesoscopic Dynamics of Fracture Process and Materials Strength (H.
Nakasone: Proc. of International Conference on Computational & Experimental Engineering and Sciences (2005), p. 1434

Poesio P and Ooms G, “Formation and ultrasonic removal of fouling particle structures in a natural porous material,” Journal of Petroleum Science and Engineering,Italy, vol.45, pp. 159-178, November 2004
He Ning, GAO Song and WANG Jie, “Modulation Method of Cascaded Multilevel Distributed Switching Power” Journal of Xi’an Technological University,China, vol.28, pp. 552-556, 2008.

In order to analysis the feasibility of cancelling setting invert, 3 kinds of models are set as following: Model 1: ordinary flat-bottom tunnel model Model 2: inverted tunnel model Model 3: flat-bottomed tunnel (Grouting bolts bellow the tunnel and pouring C25 concrete on the bottom tunnel where digs out 20cm-thickness original rock) Surrounding rock uses HowkBrown models, and the remaining material uses a linear elastic constitutive relation.
Journal of Geotechnical Engineering, 1996, 18 (1): 43 – 461.In Chinese
International Journal of Rock Mechanics and Mining Sciences, 2007, 44( 4) ：550-564.

Introduction Solid superacid is a kind of new-type catalyst material, it has shown better applicability in many organic catalysis, such as esterification, acylation, alkylation, isomerization, and so on [1, 2].
[4] Lian Ping, Yang Yanchao．Preparation and characterization for rare earth solid superacids Gd3+-SO42-/ZrO2 catalyst [J]．Journal of Gannan Normal University, 2005, (3):50-51
[5] Shen Xiangzhong, Xie Shanmei, Hu Ting．Research of rare earth solid superacids nanometer SO42-/TiO2/La the preparation and catalytic synthesis of allantoin [J]．Journal of Hunan Institute of Humanities; Science and Technology, 2008, (2):22-26