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This experiment was performed in State Key Laboratory of Building Science South China University of Technology.
Test Materials.
In order to obtain the actual mechanical properties of the material, during the cementing of the specimens, detained four groups (3 cubes each group) test cubes (150mm × 150mm × 150mm) and conserved in same conditions with the test components.
Guo, T.H Zhou, P.H Qiu: Journal of Building Structures, Vol.32 (2010) NO.12, p. 83 (In Chinese)
Zhu: China Civil Engineering Journal, Vol.43 (2010) NO.6, p. 53 (In Chinese)

The Effect of UIT on the Residual Stress of 7N01 Al-Alloy Welding Joints Jinbo Liu1, a ,Yilin Zhou1,b,Qiuying Wang1,c,Mingyue Zhang1,d, Hui Chen1,e, Hengkui Li2,a 1 Material Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China 2.CSR Qingdao Sifang Co.
Acknowledgement This work was financially supported by the pillar projects in the national science & technology (GrantNo.2009BAG12A04-D02) and the Fundamental Research Funds for the Central Universities (SWJTU12CX047).
Key Engineering Materials, 2005 (297 - 300) : 697 – 702 [5]Radaj.Welding thermal effect [M] Beijing: Machinery Industry Press, 1997.7 [6]Delin Rao, Ligong Chen, Chunzhen Ni.
Journal of The Society of Naval Architects of Japan, 1995, 177:339-346(in Japanese) [8] E.S.Statnikov,L.V.Zhuravlev,A.F.Alekseev.
Welding Journal, 2008,29 (9) :55-58.

Introduction A leak in pipeline can cause immediate loss of flowing materials at the leaking spot which in turn leads to the decrease of fluid density and produces a transient pressure drop and a difference in speed, which the sensors installed on both sides of leak spot or in the pump station can collect pressure wave signal, locate the leak and determine the leakage level by using signal processing methods.
When a pipeline leak happens, the loss of material at the leaking spot will result in the decrease of density there and a corresponding decrease of pressure.
[2] Cai Zhen-min, The Pipelines Leakage Detection Based on Wavelet Analysis and Wave Propagation Method, Mechanical Science and Technology 2001, 20-38
[3] Xia Hai-bo, ZHANG Lai-bin, WANG Zhao-hui, Application of wavelet transform to signal detection of pipeline leakage, Journal of the University of Petroleum, China（Edition of Natural Science）2003. 02
Method of fault pat tern recognition based on Laplacian eigenmaps, Journal of System Simulation, 2008, 20 (20):5710-5713.

Materials and Methods China's Ministry of Environmental Protection (MEP) is responsible for measuring the level of air pollution in China.
Research on Corrent Pollution Sataus and Pollution Characteristics of PM2.5 in China [J],Research of Enviromental Sciences, Vol. 13, No. 1, (2000). p. 1-5
Journal of Environmental Quality 26, (1997).
Science.
Journal of Environmental Economics and Management.

.), Project Managers, Public Health Departments, Engineers, Experts, Health And Safety Executive, Security Control Center, Material Manufacturers, Media Focal Point, Propaganda Department, The Meteorological Department, Disaster Agencies, Water Sector Response Stage Stage Ambulances, Mobile Communication Service Providers (Such As China Mobile, China Telecom, Etc.), Casualty Centers, National Disaster Relief Headquarters, The Fire Department, The State Council, Hospitals, Security Control Centers, Medical Personnel, Media Focal Point, The Foreign Ministry, The Police Survivors Reception Center, Department Of Transportation, TV/Radio, Utility Services, People's Liberation Army, The Chinese People's Armed Police Force And The Militia Reconstruction Stage Stage designer/planner, project managers, engineers, experts, the State Council, materials manufacturers, the publicity department of the PLA, the Chinese People's Armed Police Force and the militia, TV/radio, public utility services
Acknowledgement This work was supported in part by Science and Technology Plan Projects of Jiangxi, China (Grant No. 20132BBA10007).
Profiling Crisis Management, Journal of Contingencies and Crisis Management, vol.4, no.3, pp.169-173, 1996
Journal of Information, vol.8, pp.22-25,2008
Internet Crisis information research on its propagation rules and problem solving model University of Science and Technology of China, 2010

Sych, Designing cold-resistant structural materials for the Arctic.
Pursche, Modern high strength low alloyed steels, in: Proceedings of the 1st International Conference about Recent Trends in Structural Materials COMAT. (2010) 13-18
Baryshnikov and others, Innovative Metallic Materials: Monograph, Publishing house of MSTU named by G.I.
Park, Effects of deformation and boron on microstructure and continuous cooling transformation in low carbon HSLA steels, Materials Science and Engineering A. 422 (2006) 157-162
Nikitenko, Choosing the rational heat treatment conditions for high-strength cold-resistant weldable steel with yield strength of more than 600 N/mm2, IOP Conference Series: Materials Science and Engineering. 969(1) (2020) 012013.

However, most of the previous researches were focused on the bulk and compact materials [5], few of them were placed emphasis on powder materials.
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By using the plane contact theory with the elasticity ball and with the materials mechanical testing platform, litchi’s elastic modulus, Poisson’s ratio and other mechanical parameters have been determined [3-5].
Using the rigid materials model to define the material of tool and fixture, respectively, all displacements and all rotations were controlled in the fixture material-selected model, but Y, Z displacement and all rotations were controlled in the tool material-selected model.
Litchi three-layer structural materials properties were respectively defined as follows: 2.5 MPa elasticity modulus, 0.3 poisson's ratio and 8.8325 × 10-7 kg / mm3 density of fruit pericarp; 0.5 MPa elastic modulus, 0.3 poisson's ratio, 9.6762 × 10-7 kg / mm3 density of fruit pulp; 4 MPa elastic modulus, 0.3 poisson's ratio, 9.2757 × 10-7 kg / mm3 density of fruit stone.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (31071583,30900870),the Key Project of Natural Science Foundation of Guangdong Province (9251064201000009).
J.: Transactions of the ASAE, Vol. 43 (2000), p. 1725 [13] Stoneham T.R., Lund D.B., Tong C.H.: Journal of Food Science, Vol. 65 (2000), p. 968 [14] JamaLNourain, Yibin Ying, Jianping Wang, Xiuqin Rao: Transactions of the CSAE, Vol. 21 (2005), p. 17 [15] Ezawa Y, Okamoto N: Computers & Structures, Vol. 57 (1995), p. 691 [16] Gongbing Su, Jianying Liu, Shucai Wang: Transactions of the CSAM, Vol. 38 (2007), p. 62 (In Chinese)

Hsueh Department of Mechanical Engineering, Technology and Science Institute of Northern Taiwan, Taipei, Taiwan mhhsueh@tsint.edu.tw Keywords: Thermoelectric Cooling module, Brake system, Heat exchange system, Brake pad, Brake shoe Abstract.
Acknowledgment This research was supported by National Science Council, R.O.C., under Grant NSC 99-2221-E-149 -003 and NSC 100-2221-E-149 -005.
O'Reilly, Automotive disc brake squeal, Journal of Sound and Vibration, v 267 (2003), No 1, p 105-166
Rahman, , Material selection method in design of automotive brake disc, WCE 2010 - World Congress on Engineering 2010, v 3(2010), p 2322-2326
Chan, Stachowiak, G.W., Review of automotive brake friction materials, Journal of Automobile Engineering, v 218(2004), No 9, p 953-966.

Introduction Multiferroics based materials are widely researched and used in science and technology.
Multiferroics materials can exists in one or two phase of materials.
Magnetism and Magnetic Materials 323(2011): 564-658
International Journal of Nano Dimension 3(3): 185-190
Materials Science and Applications 2011(2): 1564-1571