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Online since: April 2014
Authors: Shuo Ming Wang, Yan Wang, Ruo Si Wang
Introduction In north China, the production of narrow strip at a factory often appear quality objection, on the main defects of narrow strip steel performance for parts peeling, the analysis is mainly caused by inclusions in steel, so make system analysis to raw materials of steel Q195 production process and the slab of T[O], [N] content, microscopic inclusions content .
Journal of Northeastern University(Natural Science)[J], 2006, 27(2): 192~195 [2] Shuoming Wang, Qing Lv, et al.
Journal of Hebei Polytechnic University(Natural Science Edition)[J], 2009,31(1): 15~20
Online since: July 2014
Authors: Zhi Jun Jiang, Lin Li, Qin Zhang, Sheng Tao Peng, Hui Li
Analysis to Causes of Concrete Transfer Crossbeam Cracks in the Basement Lin Li1,a,Zhijun Jiang 2,3,b,Qin Zhang1,c,Sheng Tao Peng1,d,Hui Li1,e 1 Guang'an Vocational & Technical College, Guangan, Sichuan, China, 638000; 2Chongqing Construction Science Research Institute, Chongqing, China, 404100; 3Sichuan YUJIANYAN Construction Quality Testing Limited Liability Company, Chengdu, Sichuan, China, 610045 alilin515151@163.com, b455646508@qq.com,c369784026@qq.com,d271987803@qq.com,e348332818@qq.com Keywords: on-site test, causes of cracks, non-structural cracks, temperature stress.
Before the grouting, dirt and loose materials around the cracks on the concrete surfaces should be removed with wire brush, hairbrush and air compressor and 10 cm wide range of the cracks should be cleaned with acetone; to embed the grout nipple, the embedding interval should between 200~300mm and the nipple should be buried at where the cracks are wide and the cracks cross cracks; every crack should be set with grout nipple and discharge port for the grout smoothly fill in the cracks; epoxy resin mortar should be adopted to seal the cracks.
References [1]Sheng Cheng: New Graphical Quantitative Analysis for Characteristic Parameter of Distress in Concrete (Journal of Zhejiang University (Engineering Version), 2011)( In Chinese)
[5]Shunwen Ji: Research on Distress in Concrete and Internal and External Constraints (Journal of China Three Gorges University (Natural Science Version), 2011) ( In Chinese)
Online since: June 2014
Authors: Bo Yang, Bo Dai, Xing Jun Wang, Yun Peng Deng
The Simulation Analysis of Temperature Effects on System Performance of Silicon Micro-Gyroscope Yunpeng Deng1,2,a,Bo Yang 1,2,b*, Xingjun Wang1,2,c and Bo Dai1,2,d 1School of Instrument Science & Engineering, Southeast University, Nanjing 210096, P.R.
The characteristics of small size ,light weight ,high reliability and low cost have allowed the silicon micro-gyroscope to find a place in many fields[1,2].The precision and stability of micro-gyroscopes are prone to be affected by the material, manufacturing technology and temperature of ambient environment [3,4,5].This paper will mainly discuss the effects of temperature variation on the system performance.
Reference [1] Michael I.Ferguson, Didier Keymeulen, Chris Peay: Effect of Temperature on MEMS Vibratory Rate Gyroscope.2005 IEEE Aerospace Conference. 2005,pp.1-6 [2] Yong Yin, Shourong Wang, Cunchao Wang: Journal of Chinese Inertial Technology Vol.38 (2008), p. 918
[3] Kirill Shchedov, Christopher Evans, Roman Gutierrez: Temperature dependent Characteristics of the JPL Silicon MEMS Gyroscope.2000 IEEE Aerospace Conference Proceedings , Piscataway NJ, USA, Vol.1(2000), pp.403-411 [4] XU L,YANG B,WANG SH R: On-Chip Temperature-control technology for silicon Micro-gyroscope.Key Engineering Material, Vol.483(2011), pp.228-231
[5] Yong Yin, Shourong Wang, Cunchao Wang: Journal of Chinese Inertial Technology Vols.38 (2008), pp.918-921.
Online since: June 2010
Authors: Jin Zhu Han, Xing Bin Sun
Material and Methods The zeolite sample was obtained from Beipiao, Liaoning province, China.
Acknowledgment This research is financially supported by Supporting Certificate of China Postdoctoral Science Foundation (NO.20070420882); The National Natural Science Foundation of Heilongjiang Province of China (NO.
E200812); China Postdoctoral Science Foundation (NO. 200902408); The National Research and Public Service Industry Special Fund (NO. 200909055).
References [1] Kinga A´ da´ma, Tore Krogstadb, Lasse Vrale, Phosphorus retention in the filter materials shellsand and Filtralite P® -Batch and column experiment withsynthetic P solution and secondary wastewaterecological engineering 29 (2007) 200-208
Phosphate removal from wastewater by model-La(III) zeolite adsorbents Journal of Environmental Sciences 20(2008) 670-674
Online since: December 2014
Authors: Ke Huang, Chi Zhang, Heng Lian Xie, Zhi Kang Bu
Mechanical fault diagnosis technology plays a very important role in guarantee of safe operation of heavy equipment, and it is an ongoing development and improvement of intersecting integrated technology [1].As a result, the national nature science foundation discipline development strategy study (2011-2020), and the research of the mechanical fault diagnosis related to the new damage monitoring technology and methods [2] are considered as an important direction.
Acoustic emission research trend Acoustic emission technology as a detection technology started in the 1950 s in Germany began to applied in materials research.
Measurement,2013,46(1):497-505 [2] Department of engineering and material science, National Natural Science Fund Committee.
Beijing: Science Press, 2010 [3] Wei Zhou, Thomas G.
Harley: Bearing condition monitoring methods for electric machines: a general review [J]. 2007IEEE Internation symposium on diagnostics for electric machine, power electronics and drives,SDEMPED(2007),P.3-6 [4] T.Yoshioka,Application of acoustic emission technique to detection of rolling bearing failure,Journal of the society of tribologists and lubrication engineering(1992)49 [5] B.Eftekharnejad,M.R.Carrasco,B.Charney,D.Mba.the application of spectral kurtosis on acoustic emission and vibrations from a defective bearing[J].mechanical systems and signal processing, 25(2011)266-284 [6] B.Kilundu,X.Chiementin,J.Duez,D.Mba.
Online since: July 2013
Authors: Xiao Na Wang, Jing Xian Liu, De Qiang Chang, Ning Mao, Xi Sun
Afterglow time Afterglow is that when the fire removed, materials continues to burn without flame.
In addition to PET needled felt, the other six filter materials all have a certain of flame resistance performance
[4] D.W van Krevelen: Some Basic Aspects of Flameresistance of Polymeric Materials.
Journal of Wuhan University of Science and Technology, Volume 20, Issue 2(2007), p. 29-32
Fire Science and Technology, Volume 28, Issue 2(2009), p. 77-79.
Online since: April 2012
Authors: Geng Huang He, Xian Li Liu, Fu Gang Yan, Qiang Hu, Shou Hui Sun, Li Liu
There lots of heat will be generated on shear zone, as the distorted materials pass the deformation zone in a row by higher speed.
The damage of the shear stress is the process that shear stress makes the materials’ relative slippage happen, and the horizontal shear stress on cutting machining region can be analyzed by using elasticity theory (refer with: Fig. 6).
However, the phenomenon of materials’ abscission of the flank is more serious, this is mainly because of the crack’s in-depth growth along the flank.
Wang: The Chinese Journal of Nonferrous Metals, Vol. 15 (2008) No. 8, pp. 1167-1168.
[7] Genghuang He, Xianli Liu, Fugang Yan, etc: Advanced Materials Research, Vol. 188 (2011), pp. 450-453
Online since: October 2012
Authors: Jing Li, Xiao Wen Jie
Integrated interface refers to medium, channel or carrier on which integrated units realize exchange of material, information, and energy with environment.
Journal of Resources and Ecology.
Ecology and Environmental Sciences.
System dialectical Journal.
Resource Science.
Online since: December 2013
Authors: Shuang Cao, Zong Qiang Zhu, Zong Lan Zhang, Yi Nian Zhu, Liang Liang Tan, Liu Qin Dai, Cai Chun Wei
Materials and methods Material.Mimetite sample:The self-made [7].Experimental reagents: HNO3 (analytical pure).
The authors thank the Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology for the research assistance and the financial supports from the National Natural Science Foundation of China (NSFC40773059, NSFC41263009), the Natural Science Foundation of Guangxi (2012GXNSFDA053022), the Provincial Natural Science Foundation of Guangxi (GuiKeZi 0832020Z, 2011GXNSFF018003, 2011GXNSFA018013).
References [1] G.Y.Chen, W.M.Li, S.Y.Rong: Journal of Lanzhou University, Vol.21(1985), p.112-121
Zhu,J.Lu,Y.P.Liang: Journal of Guilin University, Vol.25 (2005),p.506~512 [5]Y.N.Zhu, H.Zhag, Y.P.Liang, et al:Acta Scientiae Circumstantiae, Vol.25(2005), p.1652-1660 [6]L.W.Xu:Study on Solubility and Stability of Arsenate/Phosphate Solid Solution 2011, doctor degree thesis [7] Z.L.Zhang: Study on the Dissolution and Stability of Pb5(PxAs1-xO4)3Cl Solid Solution inAqueousEnvironment, 2011,masterdegree thesis
Online since: December 2010
Authors: Zhao Yang Zhang, Fei Chen, Yao Min Wang
Short-pulse laser ablation of metal, in which the metal surface material can be removed or deformed mainly due to the thermal-ablation effect [2], has shown great interest in laser marking.
Acknowledgements Authors acknowledge financial support from National Natural Science Foundation of China (50975127), Research Fund for the Doctoral Program of Higher Education of China (20093227120006), China Postdoctoral Science Foundation (20080431072) and Postdoctoral Science Foundation of Jiangsu Province (0801004C).
Zhu:Journal of Materials Processing Technology vol. 139(2003), pp. 273 [2] B.
Li et al: Chinese Journal of Lasers vol. 34(2007), p. 765 [4] G.