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Online since: December 2011
Authors: Xiao Jiao Yu, Bing Hua Yao, Jie Zhao, Jian Zhang, A Man Zhang, Guang Jun Liu
Preparation and Characterization of Cu2O thin Films by electrodeposition YU XiaoJiao 1,a, ZHANG AMan1,b, ZHANG Jian 1,c, ZHAO Jie1,d, YAO BingHua1,e, LIU GuangJun1,f 1Faculty of Sciences, Xi’an University of Technology, Xi’an710048, China.
Introduction As energy crisis and the traditional energy of the serious pollution for environment, the development of renewable clean energy become one of the important strategy problem in the world.Solar energy is inexhaustible as clean energy, in the sum of the global energy consumption every year,only equivalent of the sun projects onto the surface of the earth in 40 minutes,therefore,the use of semiconductor materials make solar power is directly converted to electrical energy which become a hot topic.Cu2O is a non-toxic,low cost,and forbidden band width is about 1.9 eV,has a higher theoretical solar cell using efficiency (9%-11%).Cu2O is a great potential applications for solar cell semiconductor materials[1],Cu2O film can be preparation by electrodeposition[2],sol-gel[3],magnetron sputtering[4] and so on.
References [1]Kano:solra cells,25(1988),p.265 [2]L.D.R.D.Perera,W.Sirpal and K.T.L.Desilva:J.Natn.Sci.Coun.Sri Lanka,24(1996),p.299 [3] Lidia Armelao,Davide Barreca, Manuel Bertapelle:Thin Solid Films,442(2003),p.48 [4] Hailing Zhu,Junying Zhang,Chunzhi Li:Thin Solid Films,519(2009),p.5700 [5] NianJ.N, Hu C.C,Teng H:International Journal of Hydrogen Energy,33(2008),p.2897
Online since: January 2005
Authors: Hui Xu, Jiansen Ni, Zhen Wang, Yi Seng Wu, Bangxin Zhou, Xueling Hou, Ying Li
Study on Two-Phase Nanocrystalline Nd2Fe14B/ α-Fe Bonded Magnet Ni Jiansen 1, a , Wang Zhen 1 , Xu Hui1 , Wu Yiseng 1, Zhou Bangxin 1, Hou Xueling 1, Li Ying 1 1 Institute of Materials, Shanghai University, Research Center of Nano-Science & Nano-Technology, Shanghai University, Shanghai 200072, China a nijiansen@163.com Key words: rare earths, Nd-Fe-B, bonded magnet, two-phase nanocrystalline Abstract.
Alloying is one of the most useful ways to improve the microstructure of the materials and therefore increase the properties of the magnets.
Vol.26-5 (1990), p.1963~1965 [3] Ni Jiansen, Xu Hui, Zhu Mingyuan, et al: Journal of Rare Earths Vol.21 (2003), p.401 [4] Chang W C, Wu S H, Ma B M, et al: J.
Online since: October 2011
Authors: Jiu Xin Jiang, Bin Hu, Long Hui Nie
Silver halides are photosensitive materials extensively used as source materials in photographic films.
Ingler: Science 297 (2002) , p. 2243 [3] C.
Liu: Journal of Alloys and Compounds, 509 (2011) , p. 3286 [11] L.
Online since: July 2015
Authors: Kar Hoou Hui, M. Salman Leong, Ahmed M. Abdelrhman, Yasin M. Hamdan
Lim Meng, "Blades rubs and looseness detection in gas turbines - operational field experience and laboratory study," Journal of Vibroengineering, vol. 15, pp. 1311-1321, 2013
Sunar, "Non-stationary vibration signal analysis of rotating machinery via time-frequency and wavelet techniques," in Information Sciences Signal Processing and their Applications (ISSPA), 2010 10th International Conference on, 2010, pp. 21-24
Ngui, "Application of wavelet analysis in blade faults diagnosis for multi-stages rotor system," Applied Mechanics and Materials, vol. 393, pp. 959-964, 2013
Hui, "Vibration Analysis of Multi Stages Rotor for Blade Faults Diagnosis," Advanced Materials Research, vol. 845, pp. 133-137, 2014
Online since: September 2013
Authors: Hua Xin Xue, Ya Dong Wang, Zhi Chao Sun, Xian Min Zhang
The establishment of finite element model Geometrical and material parameter.
Combining the trend of pavement’s development in the future, pavement structure and material parameters are shown in Table 1, and the FEM model whose size is 45 m x 20 m x 11.6 m was built.
Table 1 Pavement structure and material parameters Pavement structural floors material ratio thickness/m elastic modulus/MPa Poisson ratio Surface course asphalt concrete 0.16 1800 0.3 Asphalt pavement macadam base broken stone 0.4 800 0.3 bottom course aggregate 0.4 300 0.35 subgrade Soil 10 60 0.4 Element selection and geometric partition.
Acknowledgements This work is financially supported by the National Natural Science Foundation (51178456).
China Civil Engineering Journal, 1995,28( 3) : 9—16.
Online since: May 2014
Authors: Wei Ping Ouyang, Xiu Dong Xu, Jin Zhang
For its complex stress distribution which brought by geometry variety ,welding technology and the changing of physical properties of materials after welding etc, conduct a study on weld structure become very difficult to the traditional fatigue property research method.
The butt welded joint is the major joint form of hoisting equipment, the base material of weld structure is relative stable, steel Q235 is the most common material, therefore, the improved linear equivalent structural stress theory was intend to adopted to the study of fatigue property of steel Q235 weld joint.
Journal of Offshore Mechanics and Arctic Engineering,2006,128(4):330-336
The latest progress of fatigue strength analysis techniques of steel structure weld [J].Chinese Railway Science,2009,30(4)
Online since: March 2013
Authors: Cai Li Zhang, Ning Li Li, Qing Yi Xiao, Ti Song, Chuang Du
Stress absorption layer construction process Rubber powder modified asphalt as a stress-absorbing layer material can ensure good interfacial bonding[3].
The construction of the stress-absorbing layer should refer to the following steps: (a)Ensure that the quality of the materials Sprayed stress absorbing layer material should carefully check the quality of crumb rubber modified asphalt only under the premise of quality to meet the design requirements in order to begin construction.
[3] ZhaoHui Liu: Continuously reinforced concrete rigid-flexible Composite Asphalt Pavement Research:(Changsha University of Science & Technology,Changsha 2007) .
Journal of Highway and TransportationResearch, 2009 26(3):2-5.
Online since: December 2012
Authors: Hong Qin Liu, Xiu Lan Xin, Ya Na Wei, Yang Yu, Shao Xiang Yang
Experiment Materials.
Other materials were used as received .
Acknowledgment This work is supported by the National Nature Science and Foundation of China (21046005).
[4] Xiuxia Wang, Guoqiao Lai, Zhigang Jiang, Yifeng Zhang: European Polymer Journal.
Online since: June 2014
Authors: Wei Dong Liu, Jian Long Xiu, Ling Hui Sun, Ying Guo
Adsorption Research of a Polymer on Oil Sands in Xinjiang Conglomerate Reservoir GUO Ying 1, a, LIU Wei Dong 2,b XIU Jian Long 2,c and SUN Ling Hui2,d 1 Institute of Porous flow & Fluid Mechanics, University of Chinese Academy of Sciences, Langfang,Hebei, 065007,China 2 Langfang Branch of PetroChina Research Institute of Petroleum Exploration & Development, Langfang, Hebei, 065007,China aguo82y@163.com, blwd69@petrochina.com.cn, cxiujianlong69@petrochina.com.cn, dsunlinghui69@petrochina.com.cn Keywords: Polymer.
Experimental materials.
Journal of Hazardous Materials. 136(3):560-566 (2006) [5] Kilislioglu A, Bilgin B.
Online since: February 2012
Authors: Wen Guang Liu, Hong Lin He, Dong Mei Wu
Introductions Piezoelectric linear motor (PLM) is a new concept type micro-motor, the working principle of it is to transform the vibration driven by friction of stator and slider in ultrasonic frequency band into slide liner motion using piezoelectric effect of piezoelectric materials, and it can also output power and drive loads.
Solid 45 type in 8 node hexahedral elements and solid 5 in electromechanical coupling elements are presented for meshing, the material parameters setting are as follows, brass density is 8270㎏/m3, elastic modulus is 920GPa, poisson ratio is 0.33, piezoelectricity ceramic’s type is P-51(15×5×1mm).The FEM results are displayed in Fig.3.
The solve frequency band is set from 10KHz to 50KHz,frequency calculation interval is 2KHz, stator material damping coefficient is 0.003,electric power stimulus signal maximum value is 120V.Amplitude-frequency characteristic curve of stator driving-end longitudinal vibration is showed in Fig.6.
Wallaschek: Journal of Engineering .Vol.1 (1999), p.7-12 [2] H Saigoh, M.Kawasaki, N.Maruko: Applied physics.Vol.34 (1995), p.2760-2764 [3] Y.
Zhao: Science Press.Vol.1 (2010), p.12-15, in Chinese [5] Z.Y.Yao, D.Yang, C.S.
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