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Online since: October 2011
Authors: Xue Jun Xie, Qiang Fu, Pin Guo Zou, Wei Su, Tiao Bing Xiao, Meng Jun Wang, Guo Hua Lu, Zeng Fu Wei
For Example, the fiber debris produced due to the friction between the surfaces of insulation materials when the solid insulating materials of transformers were been cut, machined, assembled and so on, and the insulating materials carbonized, including free carbon in the oil due to the high temperature near the welding point while welding wires, the copper scale attached to the surfaces of magnet wires during the processing of drawing, debris produced during the machining of the transformer winding, core as well as radiators, valves, switches and other solid components, impurities introduced from the insulation coating of the magnet wires and their welding processes, if not cleared up, would be brought into the body of transformers [2,5].
The method performed well in general, but there were some defects in the adsorption materials, which might contaminate the oil [9].
Make sure that the glue, paint and other materials used were compatible with the transformer oil, and they would not peel off or break down and affect the oil quality [7].
Shao: Insulating Materials Communication No.4 (1999), p.22-27 [3] Z.
Wang, et al.: Journal of North China Inst. of Electric Power Vol.22 No.3 (1995), p.24-28 [7] L.H.
Online since: March 2004
Authors: Il Ho Kim, G.S. Choi, Ji Soon Kim, Jung Il Lee, Young Geun Lee, Soon Chul Ur, Sung Lim Ryu, M.G. Han, Tae Whan Hong
Ryu 1 1 Dept. of Materials Science and Engineering/Nano Technology Lab., Chungju National University, 123 Geomdan-ri, Iryu-myeon, Chungju, Chungbuk 380-702, Korea 2 Minerals and Materials Processing Division, Korea Institute of Geoscience and Mineral Resources, 30 Gajeong-dong, Yuseong-gu, Daejeon 305-350, Korea Keywords: CoSb3, skutterudite, thermoelectric Abstract.
Introduction Recent progress in solid state physics and materials science could make good use of the various selection criteria in order to identify new potential candidates for good thermoelectric materials.
A systematic search for novel thermoelectric materials resulted in the identification of a family of compounds with skutterudite structure as good candidates for high performance thermoelectric conversion efficiency.
All of them are satisfied in the skutterudite materials [1,3].
Experimental Procedures CoSb3 compounds were prepared by the electric arc melting method, which is widely used to melt and solidify the volatile materials.
Online since: December 2014
Authors: Nan Liu, Jun Peng Qiao
The parameter analysis and parameter calculation of total force sensor Manufacturing material is 45# carbon steel, the temperature of heat treatment is 850℃ normalizing, 840℃ quenching , 600℃ tempering, E=200GPa,μ=0.27,=355MPa; Safety factor takes the value of 1.3;273MPa[8] , the maximum combined stress under the action of F and forced on the dangerous section is : ++
References [1] Guo Chuan-sheng, Zhang Ning-chuan, Liu Zan-qing, Huang :Experimental study of wave forces on caisson-pile-deck composite structure[J] Journal of Waterway and Harbor ,2011,(32)
[2] Tian Yu-peng, Li Kai-yu,Yao En-tao: The sensor principle[M] Science Press, 2007
[5] Liu Ling-xia: Principles of concentrating stress sensor design[J]China Science and Technology Information,2006,(17) [6] Xu Yong-zhi, Teng Jun: Error differential compensation technology of sensor system[J], Science and Technology of Overseas Building Materials,2004(5) :73-76
[8] Liu Hong-wen: Mechanics of materials[M] HIGH EDUCATION PRESS,1979 [9] Ji Nai-gang , Jiang Jian (Department of Automation): On output sensitivity of a strain-gauge sensor[J]
Online since: July 2014
Authors: Bang Sheng Xing, Le Xu
Introduction Cold rolled ribbed steel bars is a new high quality and efficient constructional material.
During the cold rolling process, raw materials are subjected to repeated rolling deal, and subjected to an integrated complex constraint.
Luo: Optimization Theory Methods and Solving Software (Science Press, China 2006)
Wang: Chinese Journal of Chemical Engineering, (2007) No.2, pp. 240-246
Lu: Mathematical Statistical Methods (East China University of Science and Technology Press, China 2005).
Online since: February 2007
Authors: Tamás Réti, Lino Costa, Rafael Colás, Imre Czinege, Imre Felde
H-9026 Györ, Hungary 2 Bay Zoltan Institute for Materials Science and Technology, Fehérvari út. 130, H-1116 Budapest, Hungary 3 DEMat, Instituto Superior Técnico, Av.
Materials Science, Vol. 15, 1999, pp. 101-112
Materials Science, Vol. 15, 1999, pp. 446-482
Reti: Short Comments on Kinetic Models Involving Changes in Activation Energy, Journal of Thermal Analysis and Calorimetry, Vol. 62, 2000, pp. 325-327.
Online since: June 2011
Authors: Xian Kui Li, Hai Bo Xie, A. Kiet Tieu, Hong Tao Zhu, Xing Zhong Zhang, Chun Xia Dou, Xiao Zhong Du
Tieu2,c, Haibo Xie2,d, Xiaozhong Du3,e, Xiankui Li1,f, Chunxia Dou4,g 1Institute of Mechanical Engineering, Yanshan University, China 2School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, Australia 3School of Materials Science& Engineering, Taiyuan University of Science and Technology, China 4Institute of Electrical Engineering, Yanshan University, China azhangxzh@ysu.edu.cn, bhongtao@uow.edu.au, cktieu@uow.edu.au, dhx899@uow.edu.au, exiaozhong.du@163.com, fzhangxingzh@sina.com, gcxdou@ysu.edu.cn Key words: continuous casting; mold; non-sinusoidal oscillation.
Acknowledgement This work is supported by the National Science Foundation of China under grant 60874023.
Irving, Continuous Casting of Steel, The Institute of Materials, (1993), p.112 [2] Mikio Suzuki, Hideaki Mizukami, Toru Kitagawa: ISIJ Int.
Metallurgical Industry Press, Beijing (2000), p.31-35 [4] Zhang Xingzhong, Li Xiankui, Liu Jianhui: Kang T’ieh Vol.39(2004), p.772 [5] Xiankui Li, Xiaoming Wu, Yiming Fang: JiXie Gongcheng Xuebao Vol.36(2000), p.67 [6] Li Xiankui, Zhu Qingxiang: Kang T’ieh Vol. 33(1998), p.26 [7] Zhang Xingzhong, Li Xiankui, Zheng xueren:Chinese Journal of Mechanical Engineering Vol.40(2004), p.178 [8] Zhang, Xing-Zhong , Li, Xian-Kui, Liu, Qing-Guo: Kang T'ieh Vol.40(2005), p.33 [9] Sheng Yiping, Ren Tingzhi, Zhang Xingzhong: Kang T'iehVol.31(1996), p.27
Online since: October 2011
Authors: Xin Wang, Dan Su, Hai Bo Li
Biodegradation Characteristics of Heavy Oil by Fungi Isolated from Petroleum Wastewater Xin Wang1,a, Dan Su2,b, Haibo Li1,c 1 Key Laboratory of Regional Environment and Eco-Remediation, Ministry of Education, Shenyang University, Shenyang 110044, China 2 Liaoning Academy of Environmental Sciences, Shenyang 110031, China a wx1979@126.com, b sudan1980@126.com, c iamlhb@126.com Keywords: Biodegradation, Petroleum Hydrocarbon, Fungi, Heavy Oil Abstract.
Materials and Methods Screening of fungal strains with high degradation ability.
∆Malkanes=Moriginal alkanes + Tacroamtics+ Tcolloid and asphaltene-Ralkanes (1) ∆Macroamtics=Moriginal acroamtics + Tcolloid and asphaltene-Racroamtics (2) ∆Mcolloid and asphaltene=Morigina lcolloid and asphaltene-Rcolloid and asphaltene (3) where M is the original materials, T represents one component transformed into other materials, R is the abbreviated form of removal.
Acknowledgements This work has been financially supported by the National Natural Science Foundation of China (grant no. 51008198) and the National Key Technology R&D Program (grant no. 2011BAJ06B02).
Florence: Journal of Natural & Physical Sciences.
Online since: April 2011
Authors: Wei Li, Li Li Wu, Song Bai Hu, Rong Zhe Tang, Cai Juan Tian, Liang Huan Feng, Jing Quan Zhang
The Influence of Thickness on the Properties of Sb2Te3 Thin Films and Its Application in CdS/CdTe Thin Film Solar Cells Songbai Hu, Rongzhe Tang, Caijuan Tian, Wei Li, Lianghuan Feng, Jingquan Zhang, Lili Wu College of Materials Science and Engineering, Sichuan University, China Email: waylee2000@sohu.com (Wei Li, corresponding author) Key words: Sb2Te3 thin film, vacuum co-evaporation, XRD, XPS, CdTe solar cell.
Sb2Te3 thin films of different thickness were applied to CdS/CdTe thin film solar cells as back contact material.
Acknowledgements Financial support from National Natural Science Foundation of China (Grant No. 61076058) and the Science and Technology Program of Sichuan Province, China (Grant No. 2008GZ0027) is gratefully acknowledged.
Vedeshwar, Materials Research Bulletin 38 (2003) 1929-1938
[5] Bin Lv, Songbai Hu, Wei Li, et al., International Journal of Photoenergy (2010)
Online since: September 2014
Authors: Da Le Sun, Thai Nguyen, Liang Chi Zhang, Qiong Wu, Mei Liu
The workpiece material was high tensile steel BS970-EN26 containing 0.4% of carbon.
The parent material in the core is the coarse ferrite (region 1) whose hardness is 310 HV.
In this case, the materials in the hardening zone were deformed plastically to fill in this melted zone.
Bhadeshia, Martensite and bainite in steels: transformation mechanism & mechanical properties, Journal de Physique IV C5 (1997) 367-376
Zhang, Prediction of the hardened layer in traverse cylindrical grinding-hardening, in: Materials Science Forum, Trans Tech Publ, 2012, pp. 13-18
Online since: September 2007
Authors: C.Y. Yao, Tao Gao, Wei Peng, F.Q. Liu
Bonding materials include resins, rubber, metal, and vitrified materials.
Organic-inorganic hybrid materials have much attention in the past few years.
[2] Tanaka, T., Isomo, Y. , 2001, New development of a grinding wheel with resin cured by ultraviolet light, Journal of materials Processing Technology, 113, pp. 385
[5] Wang D, H.Jiang, L.UV-curable materials theories and application.Beijing:Science Press,2001
ASM International, Materials Park, Ohio, USA