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The signal (called seismic wavelet or wavelet) from the energy source is sent down to earth, as the signal pass through the interface of different materials making up the layers of the earth, some of it passes, some of it is reflected and the reflection signal (called the seismic trace) is collected by the collector.
A noise-free seismic trace can be modeled as [2] (1) where the error processis the reflection coefficients at the interfaces of different materials and * is the convolution operator.
Acknowledgements This work was financially supported by Construction and Development of Programs Leading to Graduate Degree of Southwest University (（2012-WXD-S1201), National Social Science Foundation of China (11XGL009) , Humanities and Social Sciences Research Fund Project of Chinese Ministry of Education (10YJA630207) and SFI MI-2007.
Pawitan "Quasi-likelihood estimation of non-invertible moving average processes”, Scandinavian journal of Statistics, 27, 689-702, 2000.

Oil shales consist of sedimentary inorganic material containing a cross-linked macromolecular organic material called kerogen.
Experimental Materials Representative oil shale samples were obtained from Huadian (China).
Journal of Jilin University : Earth Science Edition. 36(6)(2006), 869-876.
[Earth Science Edition, in Chinese, with English abstract]

Study on Properties Comparison of AH36 Opened Plate and Original Plate Junsuo Li 1, a , Zhongqi Dong 1,2, b, Tiwen Han 1,c ,Jianlu Yuan 1d 1Hebei College of Industry and Technology, Shijiazhuang 050091, China 2College of Materials Science and Engineering, Taiyuan University of technology, Taiyuan 030024, China ajunsuoli@sohu.com,bdongzhongqi@yahoo.com.cn,chantiwen@163.com, dyuanjianlu5026@163.com Keywords: AH36; ship plate steel; mechanical property Abstract.
Materials Science and Engineeting A.433 (2006)169-174
Journal of Iron and Steel Research. 23 (2011)58- 66

The coupling is made by single material, and the pipe is made by different materials, the middle of the pipe is made of insulated material which is different from the inner and the outer as shown in Fig.1.
University of Shanghai for Science and Technology. 25 (2003) 226–229, in Chinese
Journal of Engineering Thermophysics. 30(2009) 1895–1897, in Chinese
Science Technology and Engineering. 19(2009) 7338–7341, in Chinese

Journal of Hazardous Materials 149 (2007) 355-363
Progress in Energy and Combustion Science 34 (2008) 198-223
Applied Mechanics and Materials 110-116 (2012) 99-104
World Academy of Science, Engineering and Technology 72 (2010) 304-307

Test and Analysis of Steel Cable Isolator for Medical Equipments in Field Vehicle Weihua Su1, 2, a, Jinggong Sun1,b and Fu Niu1,c 1School of Mechanical Engineering, Tianjin University, Tianjin 300072, China 2 Institute of Medical Equipment, Academy of Military Medical Sciences, Tianjin 300161, China asuweihua@126.com, bsunjinggong@sohu.vip.com, cniufu@126.com Keywords: Medical Equipment, Field vehicle, Test evaluation, Shock absorber Abstract.
Acknowledge The author acknowledges the support of the natural science foundation of Tianjin, China(No.10JCZDJC25100).
Mishing, in: Diffusion Processes in Advanced Technological Materials, edtied by D.
Clem: submitted to Journal of Materials Research (2003) [6] P.G.

., 2-12-1, O-okayama, Meguro, Tokyo, 152-8552, Japan 2 Dept. of Mechanical Sciences and Engineering, Tokyo Tech., 2-12-1, O-okayama, Meguro, Tokyo 152-8552, Japan 3 Faculty of Engineering, Shizuoka Univ., 836, ohya, shizuoka-shi, shizuoka-ken 422-8529, Japan 4 Dept. of Mechanical System Engineering, Gunma Univ., 1-5-1, Kiryu, Tenjin-cho 376-8515, Japan a ktakahas@ginza.mes.titech.ac.jp, batodorok@ginza.mes.titech.ac.jp, ctysimam@ipc.shizuoka.ac.jp, diwasaki@me.gunma-u.ac.jp Keywords: Statistical diagnosis; Response surface; Electrical resistance change method; CFRP; Damage detection.
Composites Science and Technology Vol. 62(9) (2002), pp. 1151-1160 [3] M.
Todoroki: Asymmetrical dual charge EPCM for delamination monitoring of CFRP laminate, Key Engineering Materials Vol. 321-323 (2006), pp.1309-1315 [4] H.
Kobayashi: Unsupervised Structural Damage Diagnostic Method Using Judgment of Change of Response Surface by Statistical Tool (Application for Damage Detection of Composite Structure), JSME International Journal, Series A Vol. 47(1) (2004), pp.1-7 [6] A.
Sakai: Unsupervised statistical damage diagnosis for SHM of existing civil structure, Smart Materials and Structures Vol.14 (2005), pp.154-161 Matrix cracking Jig Electrode Delamination size Matrix cracking Jig Electrode Delamination size

Uniform Design and Its Application in the Chemical Composition Design of Hot Work Die Steel Haojie XIEa , Xiaochun WU b, Yongan MIN c and Yi Luod School of Materials Science and Engineering, Shanghai University, 149 Yanchang Road, Shanghai, China, 200072 a jiehaoxie1983@163.com, bxcwu@staff.shu.edu.cn, cmya@staff.shu.edu.cn, dluoyileyi@163.com Keywords: Uniform design; Hot work die steel; Chemical composition design; Heat treatment process; Quadratic stepwise regression analysis.
Preparation of experiment materials and specimens.By analyzing the relationships between the elements and the properties [6-8, 11], six kinds of elements were selected to be the independent variables and the ranges of them were determined to be 0.25~0.6%C, 0.5~1.5%Si, 0.2~1%Mn, 2~6%Cr, 1~3%Mo and 0.3~1.5%V.
Vol.33 (2006), p.175-182 [6] Guo Zhihong, Li Kairu: Journal of Taiyuan University of technology.
Fang, in: Uniform Design and Uniform Design Tables, edited by Bi Ying, Science Press, Beijing (1994) [10] Kaitai Fang and Dennis K.J.Lin: handbook of statistics Vol.22 (2003), p.132-170 [11] Wang Shuqi, Chen Kangmin, Cui Xianghong, et al: Special Steel Vol.26 (2005), p.41-43 [12] Tang Wenjun, Wu Xiaochun, Min Yongan, et al: Shanghai Metals Vol.24 (2002), p.14-17 [13] Hou Xiaoxia, Yang Hua, Zhao Yan, et al: Foundry Vol.54 (2005), p. 246-248

The surface hydrophilicity of polypropylene non-woven treated by atmospheric glow plasma Zhang Yan1,a, Liu Ruijuan2, Shang Zhongxuan1, Lv Yinding1, Gu Biao3 1School of Mechanical and Power Engineering, Henan Polytechnic University, Henan 454000, People’s Republic of China 2College of Science and Information Technology, Qingdao Agricultural University, Shandong 266109, People’s Republic of China 3Key Laboratory of Materials Modification by Laser, Ion and Electron Beams,(Dalian University of Technology), Ministry of Education, Dalian, 116024, People’s Republic of China a zhangyan@hpu.edu.cn Keywords: Hidrophilicity, Glow discharge, Surface water contact angle, Polypropylene melt blown non-woven Abstract.
Acknowledgement This work is supported by the National Nature Science Foundation of China (Grant No. 50975080, 10575019, 10075010), the National Important Foundation of China Grant No. 50537020 and Key Subjects Foundation in Henan Province.
Materials Engin.”, Vol.
Luo, Journal of Xi an Jiaotong University, Vol. 38(02) (2004), p. 191 [8] H.

Development Status and Application Prospect of Squeeze Casting Technology Haibo Yang1,a, Xingsheng Zhao1, Weizhong Fan2, Xuewen Chen2 Deying Xu2 1School of Mechanical Engineering, Science &Technology of Beijing, Beijing，China 2 Guangzhou Jinbang non ferrous alloy Co, Ltd，China ayhb@ustb.edu.cn Keywords: Squeeze casting, Process technology, Casting machine.
(a) mechanical mixing method (b) mechanical mixing continuous preparation (c) electromagnetic mixing continuous preparation The research of semi-solid squeeze casting technology is mainly focused on the aluminum and magnesium materials, not the steel material in china.
Under the support of the national natural fund recently , University of Science &Technology of Beijing and Institute of Metal Research made the basic research on the semi-solid directly prototyping of the steel material and have made considerable progress and phase achievements on Cast Iron，spring steel，stainless steel and high carbon steel[3].
Tian and S,S, Xie：submitted to Journal of Transactions of Nonferrous Metals Society of China（2000） [4] Z.G.