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Marodkar1,b and Hemant Borkar1,c* 1Department of Metallurgy Engineering and Materials Science, Indian Institute of Technology Indore, Simrol, Madhya Pradesh, 453552, India anamrataxarania@gmail.com, bphd1801205010@iiti.ac.in, ch.borkar@iiti.ac.in *Corresponding author email: h.borkar@iiti.ac.in Keywords: Magnesium, AZ91 alloy, Squeeze casting, Grain refinement, Hardness Abstract.
Introduction The need for lightweight materials to promote fuel efficiency in the automotive industry has resulted in a sharp rise in demand for Magnesium alloys in recent years.
Various series of Mg alloys have been gradually exploited as a result of the rapid development of science and technology to meet the demands of various fields.
Grain size is a well-known factor influencing material characteristics.
Zhongfan, The Role of Calcium in Microstructural Refinement of AZ91 Magnesium Alloy, Journal of Wuhan University of Technology - Mater.

Science of the Total Environment, 651, 2799-2810
International Journal of Environmental Research and Public Health.
Journal of Hazardous Substances Research, vol. 2, pp. 1–25 [28] Jones L H P., Jarvis S C., 1981.
Minerals, metals and sustainability: meeting future material needs.
Article number: 182 (2020) Journal of Earth System Science volume 129 [55] Maulana A., Christy A G., Ellis D J., 2015.

The compressive behavior of horizontally casted concrete filled steel tubular members with consideration of the process of concrete casting Wenbo Sun1, a, Yiqun Luo1,b , Wei Huang2,c 1 School of Civil and Traffic Engineering, South China University of Technology, Guangzhou, P.R.China 2 School of Science and Engineering, Jinan University, Guangzhou, P.R.China asunwenbo@scut.edu.cn, bluoyiqun_scut@tom.com, cwei.h0101@gmail.com Keywords: concrete filled steel tube; bearing capacity; the nonlinear finite element method Abstract.
Element of concrete filled steel tubular member selected eight-node hexahedral finite element（SOLID65）in ANSYS Element Library, which can take into account numerous nonlinear behaviors of concrete material, such as cconcrete cracking in three orthogonal directions, crushing, plastic deformation and creep, etc.
Beijing: China Science Press, 2007.
Journal of Harbin University of Civil Engineering and Architacture, 1997.

PMP-based Micro-3D Dental Measuring Technology Zhongwei Li1, a, Chao Ma1, b, Chunli Liu2, Congjun Wang1, Kai Zhong1 and Yusheng Shi1 1State Key Laboratory of Material Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, China 2Campus Hospital, Huazhong University of Science and Technology, Wuhan 430074, China alizhongwei226@gmail.com, bmachao.best@163.com Key words: structured light; telecentric imaging lens; fiber image bundle; electronic endoscope; micro-3D measurement Abstract.
International Journal of Computerized Dentistry, 2009, 12: 11-28

These parameters are determined by the inherent properties such as structural style and material performance.
Acknowledgement Fund project: Shaanxi Provincial Natural Science Fundamental Research Programs Project (2011JM7013) References [1] Zhou Rui, Zong Zhouhong, Zhen Maojin, The Impact Study on the Dynamic Characteristics of Simply Supported T-shaped Girder Bridge Strengthened by Steel Plates[J], Earthquake Resistant Engineering and Retrofitting, 2012.02 [2] Pan Chengguang, The Study of Dynamic tests instead of Static testing Reinforced Concrete Free Beam Bridge[D], Hefei University of Technology, 2007.02 [3] Liu Bin, Study on the Theory and its Methods of Prestressed Concrete Dynamic Load Test[D], WuHan University of Technology.2008,05 [4] Pu Guangning, Rao Zhong, Analysis of and Countermeasures for the Disease of 30m Prestressed Concrete Hollow Slabs [J], Highway, 2008.07 [5] Li zhao, Structural Monitoring and Assessment for Bridges Based on Dynamic Test[J], Transportation Science & Technology, Serial No.233 No.2 Apr.2009 [6] Zhao Qing.
Analysis of Simply Supposed Girder Bridge Vibration Responses Influenced by Truck Overload Driving[J], JOURNAL OF HEBEI UNIVERSITY OF TECHNOLOGY, October 2009 [7] Zhang Guangyong, Bridge Structural Testing[M], Beijing:China Communications Press, 2010 [8] Song Yifan, Highway Bridge Dynamics [M], Beijing: China Communications Press, 2000

Introduction With the development of science and technology, especially in information technology, various information systems began to appear, and were used in various fields.
In contrast with information system 2, information system 1 includes supply management module, but does not include material management module.
Acknowledgements This work is supported by National Natural Science Foundation of China Grant #70901066, #70971119.
Proceedings of the Institution of Mechanical Engineers Part B: Journal of Engineering Manufacture.

Every questionnaire was on behalf of one resident’s opinion in Shenyang, and it has a certain representativeness and pertinence, which was used as material source of this research.
Acknowledgements This research was supported by funds from Liaoning Provicne social science planning project in 2012 (Grant No.
Cen: Science of the Total Environment, Vol.412 (2011), p.186
Strange: Journal of Urban Economics, Vol.64 (2008), p.56

Since the bridges destroyed by earthquakes not only disturb the traffic net, but also require huge manpower and material resources to restore, more and more attentions must be paid to the bridge damages caused by earthquake pounding.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (50908135) and Transportation Science and Technology Plan of Shandong Province (2009Y10).
(In Chinese) [4] Li Li: Analysis on Seismic Pounding Responses of Isolated Continuous Girder Bridge under Earthquake Excitation, Journal of Highway and Transportation Research and Development, 2009.

Using Petri nets to describe systems have a common feature: the dynamic behavior of the system performance for the flow of resources (material resources and information resources).
The Journal of Supercomputing, 2006, 24(2): 193-202
Theoretical Computer Science, 2008, 27(2): 125-203
Lecture Notes in Computer Science, 2004(3095):13-27.

A new technology of rapid prototyping, in ink-jet printing, biological medicine, microelectronics, function gradient material preparation, and other fields is widely used [1-3].
Foundation Project : The science foundation of Anhui Polytechnic University(2013QY44) About the author : Xiao yong Suo(1982.12).
Master thesis, university of science and technology of China, 2012 [8] Wu Hao.
Journal of packaging engineering, 2011, 32 (19) : 93 ~ 96.