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The plate-stone berm and the crushed stone revetment also can conduct the chilling and hold up heat into, improve the cool-storage capability of the bed effectively, which effect of to protect the roadbed is better than each sort of thermal insulation material of which thermal conductivity changeless with the temperature[1].
Bei Jing, Journal of Glaciolgy and Geocryology,2002,5(2) :24-28.
Bei Jing, China Railway Science,2001, 1(1):125-129.
Bei Jing, Journal of China Railway Science, 2002, 23(2):60-64.

Effect Factors Analysis of Flow Noise Generation from Perforated Duct Muffler Element* Haijun Zhao1, Zhaoxiang Deng2 1Department of Mechanical Engineering,Luoyang Institute of Science and Technology Luoyang 471023, China 2College of Mechanical Engineering, University of Chongqing, Chongqing 400044, China hjzhaoly@sina.com.cn, xzdeng@cqu.edu.cn Keywords: Flow noise regeneration; Perforated pipe; Effect factors; Muffler .
To increase making cost and be able to disclose production mechanism of flow regenerated noise, using orthogonal experiment design of 4 factors and 2 levels it only need 8 test work pieces, test experiment arrangement of material structure dimension is indicated in table 1, the parameters is often used in practice, in the table 1 and 2 is respective level of every factor, the number in bracket is level value, fig.4 is test pieces of perforated tubes.
The overhang peak frequency is higher and its energy more concentrates, sound energy of some peak frequency occupies 60% of total energy. 7.Acknowledgment This research is supported by CSTC of the Science fund from ChongQing of PR China, the subject number is 2006BA7013.
Journal of Sound and Vibration 282 (2005)
Journal of Sound and Vibration ,311 (2008)

The material stayed for 10 to 20 secs in the system, sampling the roasting ore every half an hour and cooling rapidly, which would be separated in the following steps.
Acknowledgements This work was financially supported by the National Basic Research Program of China (2012CB723302), the Shaanxi Natural Science Foundation (2012JM6006).
Dilute sulphuric-acid lerching of garnierite ore after magnetic-roasting the ore mixed with iron powder[J].International Journal of Mineral Processing，1985，19(7)：285-296 [6] EI-TAWIL.S.Z,Morsi.I.M,Yhhia.A. and Francis.A.A.Alkali.
Xi'an University of Architecture& Technology Journal (natural science edition)(2007).

Introduction Wheeled Mobile Robots (WMR) have been used in many application such as moving material between work stations.
Acknowledgements This work was financially supported by Zhejiang Provincial Natural Science Foundation of China (LY12F03002) and Science and Technology Department of Zhejiang Province of Key Research Social Development (2009C11110).
Journal of zhuzhou Teachers College, 2002 [7] guy Campion, Georges Bastin, Brigitte D.
International journal of advanced robotic systems. 2004

Stability analysis about the impact of soft rock to the underground cavern group ZHU Yi-Huan1,a, SHAO Guo-Jian1,b, DONG Zhi-gao2,c 1 Department of Mechanics and Material, Hohai University, Nanjing, china 2 Nanjing Nanda Geotechnical Engineering Co., Ltd, Nanjing, china azhuyh_117@hhu.edu.cn, bgjshao@hhu.edu.cn, c103409239@qq.com Key words: Soft rock; underground excavation; stability evaluation; nonlinear finite element Abstract.
Acknowledgements This work was financially supported by the Scientific Innovation Program of College Graduate in Jiangsu Province (CXLX12_0231) and the National Nature Science Foundation of China (50978083).
Journal of Shan Dong University (Engineering Science), 2009, 39(Plus 2): 115-118 [2] Yao Bao-zhu.
Journal of Mining & Safety Engineering, 2006, 23(1): 103-106 [5] Li Shao-jun, Feng Xia-ting, An Hong-gang.

In the trough, ultrasonic transducers are arranged on the side and bottom as vibration source of the liquid, and the liquid vibration can impel particles impacting workpiece continuously, then the material can be removed and the ultra-smooth surface will be obtained. [1] Fluid-solid coupled analysis on this device was performed using finite element method.
Acknowledgements Thanks for the funding from National Natural Science Foundation of China (No. 50375029) and Guangdong Natural Science Foundation (No. 04009486).
References [1] Huang Zhigang, Guo Zhongning and Chen Xin: Molecular Dynamics Simulation of Polishing Process Based on Coupling Vibrations of Liquid (CHINESE JOURNAL OF MECHANICAL ENGINEERING, China 2005)
Journal of HoHai University Changzhou.

Experimental Procedure Material and Chips Preparation: The aluminium AA 6061were used cause of the malleable and high resistant of corrosion.
References [1] J.Jenix Rino, D.Chandramohan, K.S.Sucitharan (2012)” An Overview of Development of Aluminium Metal Matrix Composites with Hybrid Reinforcement” International Journal of Science and Research.
Rashid, “The effect of cold Compaction parameter for producing recycled aluminium by milling process” ARPN Journal of Engineering and Applied Sciences, vol. 11, no. 10, pp. 6465–6471, May 2016.

Box 3, P.C. 100, Sultanate of Oman. 2Department of physics, Faculty of Science, University Malaya, Kuala Lumpur, Malaysia.
As a wide band gap semiconducting material, silicon carbide (SiC) exhibits many excellent properties for high temperature, high frequency and high power applications [3].
Wang, Science 291 (2001) 1947
Perrot, Journal of Phases Equilibria and Diffusion 28 (2007) 150–157
Journal of Nanoscience and Nanotechnology 9 ( 2009) 6648-6654.

There are needed to cross over the following steps: Ø 2D and then 3D virtual model elaboration of robotic system; Ø Parameterized data base transfer to Adams software; Ø Material properties definition and inertial characteristics for the rigid discs and flexible wires of the system; Ø Kinematic model elaboration, definition of kinematic elements (inertial properties, local system axes), generalized coordinates and kinematics couplings; Ø Using the finite element method we transform the rigid bodies (those which model the actuating wires) into flexible bodies; Ø Identification of the dynamic characteristics of rigid-rigid or rigid-deformable contact, based on the dates specified in the literature or by finite element analysis; Ø We define the variation law of generalized coordinates that belongs the actuating couples, through the following sequences: IF( time-2.286 : 0 , 0 ,IF( time-3.429 : 1.924*time-4.398 , 2.2 , IF( time-5.715 : 2.2 , 2.2 , -1.924*time+13.194 ) ))-motion
Ohki, The development of an in-pipe microrobot applying the motion of an arthworm, in 5th International Symposium on Micro Machine and Human Science, 1994, pp. 35–40
Montano, An SMA-base flexible active endoscope for minimal invasive surgery, Journal of Micromechanics and Microengineering,vol. 5, pp. 180–182, 1995
Copilusi, Design and simulation of a snake like unit, The 12th IFToMM International Symposium on Science of Mechanisms and Machines - SYROM, 02-03 noiembrie 2017, Iași ( Editura Springer)
Craig and M.C.C Bampton, Coupling of Substructures for Dynamics Analyses, AIAA Journal, 6(7):1313–1319, 1968.

., TRESSA: Teamed robots for exploration and science on steep areas, Journal of Field Robotics. 24(11‐12) (2007) 1015-1031
Mo Gui-dong, Bionic Study of Adhesive Material used on Feet of Biomimetic Gecko Robot, College of Mechanical and Electrical Engineering2008, Nanjing University of Aeronautics and Astronautics
Guoying, Z., Research on bionic Goat Mechanism on Sloping Fields, Agricultural Mechanization Engineering2011, Henan University of Science and Technology
Journal of Mechanical Design, 128(2006) 220