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Finite Element Analysis model An FEA model is built in ANSYS software, the concrete is modeled using the element SOLID 65 [5] The properties of materials used in modeling and load calculationsare as in Table 1.
Journal Of Performance Of Constructed Facilities. 2009 April; 23(2). [2] Liu L.
Research and Application of Building Materials. 2008 Dec. [3] Sun Ww, Meng Sp, Luan Wb.
Chinese Journal of Rock Mechanics and Engineering. 2007 February; 26(2): 421-426. [8] Rankine W.
Journal of Agricultural Machinery. 2007 May; 38(5).

Methods and materials Through field investigation, and combining with signs of land use /cover change, build interpreting marks library of remote sensing in Guizhou province.
） [2] Bojie Fu, Guoyi Zhou, Yongfei Bai, Changchun, Song: Advances in Earth Science.
Vol. 387 (1997). p. 233 [4] Daily G C, Soderqvist T, AniyarS,et al. : Science.
Vol.18 (2003). p. 190 (In Chinese) [8] Xiaoli Bi, Jianping Ge: Journal of Mountain Science.
Vol.22 (2004). p. 48 (In Chinese) [9] Gaodi Xie，Zhen Lin， Chunxia Lu, et al. : Journal of Nariual Resource.

A Computer-Aided Approach to undergraduate Engineering Education Wei Wang1, a, Shenjie Jia2,b，shuchong Liu 3,c and Huiyan Wang4,d 1 Institute of Disaster Prevention Science and Technology, Beijing 101601, China 2 Institute of Disaster Prevention Science and Technology ,Beijing 101601, China 3 Institute of Disaster Prevention Science and Technology, Beijing 101601, China 4 Institute of Disaster Prevention Science and Technology ,Beijing 101601, China anewhut@163.com, bwangweielectric@gmail.com, cwujiange2008@163.com Keywords: computer simulation, engineering curricula, engineering undergraduate education, Micro-computer Control Technology, intercultural skills.
Hence, the course material featured in the courseware contains cross-references that either access local information or access information globally over the Internet.
Mill Valley, CA: University Science, 1989
Smith, "A New Paradigm for a New Field: Communicating Representations of Engineering Education Research," Journal of Engineering Education, vol. 97, forthcoming
[7] Journal of Engineering Education, "Special Report: The Research Agenda for the New Discipline of Engineering Education," Journal of Engineering Education, vol. 95, pp. 259-261, 2006

However, the reasonable strength parameters of coarse-grained soil have been troubled geotechnical workers: (1) the largest particle size of needed to reduce the test scale of original materials in the indoor test material.
Measuring the granular size Depending on Combination of screening and direct measurements method, this article did the on-site investigation to the particle size distribution of the granular materials of Xiyuanlin 413 step dumping site.
Status quo and tendency of studies on scale effects of coarse-grained materials[J].
Journal of Hohai University(Natural Science), 2009, 37(4)： 425-429
Chinese Journal of Geotechnical Engineering, 2009, 31(5)：811-816

Acknowledgment The research was supported by: 1National Natural Science Foundation-funded Project (59774033); 2Project of Creative Team for Liaoning Provincial Office of Education (2007T068); 3 Project guiding scientific and technological research of China Coal Industry Association (MTKJ-08-311); 4Liaoning Province Key Laboratory of large-scale mining equipment (the second batch of Science and Technology projects of Liaoning Province, 2008403010).
Coal Science and Technology(2005) Vol.33,No.9, p.46-48
Journal of Heilongjiang Institute of Science and Technology(2007) Vol.17,No.2,p.102-104
Journal of Liaoning Technical University (Natural Science)(2007) Vol.11,S,p.182-184
Advanced Materials Research.Vols.139-141(2010),p.2322-2325.

The analytical method of analysis is based upon simplifications of process and material behavior.
The material used for the investigations corresponds to Q235A.
The material X80 grade pipeline steel, where is E = 245 Gpa, σs = 569.5 Mpa.
Journal of Materials Processing Technology, 2005, 164~165(5): 1089-1098 [7] M.
International Journal of Mechanical Sciences, 2007, 49(5): 533-553 [8] Baofeng Guo.

Research on pinholes in aluminum foil Qingwei Dai 1,a, Dingfei Zhang 1,2,b, Xi Chen1,3,4,c, Jingren Dong2,d, Fusheng Pan2,e， 1 School of Metallurgy and Materials Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China 2 College of Materials Science and Engineering, Chongqing University, Chongqing, 400045, China 3 Department of Earth and Environmental Engineering, Columbia University, New York, NY 10027, USA 4 SV Lab, School of Aerospace, Xi’an Jiaotong University, Xi’an 710049, China aqingwei.dai@gmail.com, bzhangdingfei@cqu.edu.cn, cxichen@columbia.edu, d504565161@qq.com, efspan@cqu.edu.cn.
Acknowledgements The work is supported by Changjiang Scholar Program from Ministry of Education of China, DARPA (W91CRB-11-C-0112), National Science Foundation (CMMI-0643726), AFOSR (FA9550-12-1-0159), Research Foundation of Chongqing University of Science & Technology (CK2013B13), Achievement Transfer Program of Institutions of Higher Education in Chongqing (kjzh11221) and Chongqing Engineering Research Center for Metallurgy Inspection & Equipment (cstc2011pt-gc70007).
Cai: International Journal of Minerals Metallurgy and Materials vol.20 (2013), p. 961
Springer: Journal of Vacuum Science & Technology a-Vacuum Surfaces and Films vol.6 (1988), p. 1774.

However, the resonant frequency and the strain of a composite cantilever depend on its dimensions when the materials have been decided.
Simulation In order to further clarify the influences of the piezoelectric cantilever and the mass size on the natural frequency, deflection, maximum stress, certain materials and the beam sizes are selected for theoretical calculation, then ploting using MATLAB.
Smart Materials and Structures.
Journal of Tianjin University.
Journal of Detection & Control.

Materials and methods Experimental site.
Experimental materials and design.
Hu: Journal of Food Agriculture and Environment.
Aase: Journal of Soil and Water Conservation.
SehnitZer: Soil Science Society of America Journal.

Flores-Sahagun Effect of processing parameters on the properties of polyethylene-sawdust composites, Journal of Composite Materials, 49 (30) (2015) 3727-3740. https://doi.org/10.1177/0021998314568331 [3] A.
Shertukcle Mechanical and rheological properties of polypropylene copolymer/ wood flour composites, Journal of Polymer Materials, 22 (3) (2005) 301-311
Bruggemann Polypropylene based wood polymer composites: Performance of five commercial maleic anhydride grafted PP coupling aģents, Journal of Thermoplastic Composite Materials, 27 (4) (2014) 439-463.
Matvejs Rheological, Thermal and Mechanical Properties of Wood Plastic Composites Based on Virgin and Recycled Polypropylenes and Birch Plywood Waste, Materials Science Forum, 1071 (2022) 117-125. https://doi.org/10.4028/p-68xm1n [15] W.
Barbora Evaluation of PP/wood flour composites processing using computer simulation, Materials Science Forum, (2020) 1012 MSF 32-36.https://doi.org/ 10.4028/www.scientific.net/MSF.1012.32 [19] H.