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Online since: June 2014
Authors: Cai Li Dai, Kai Wang, Qin Fang Ding, Ji Chao Fang, Hui Li
Experimental Materials and Instruments Materials and instruments used in this study are as follows: Surfactants: Fluorocarbon surfactant (FCS-11), SDS, viscoelastic surfactant (VES).
Acknowledgement It is project supported by National S&T Major Project (No.2011ZX05037-003), National Natural Science Foundation of China (No. 51174221) and Program for New Century Excellent Talents in University (No. 20110226).
Journal of Xi’an Jiao Tong University.
Online since: July 2020
Authors: Norliza Ismail, Azman Jalar, Maria Abu Bakar, Mohd. Zulhakimi Ab. Razak
Razak1,c and Norliza Ismail1,d 1Institute of Microengineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia 2School of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia aazmn@ukm.edu.my, bmaria@ukm.edu.my, czul.hakimi@ukm.edu.my, diza_nza@yahoo.com Keywords: growth kinetics; growth exponent; intermetallic compound layer; metallurgical joining; electronics packaging Abstract.
Materials and Method Lead free solder paste of 96.5%Sn, 3.0%Ag and 0.5%Cu (SAC 305) consist of 20-38 µm particles size was used in this study.
Bhd. for research materials and collaboration work.
International Journal of Automotive Technology, 14(7) (2014) 1137-1142
Online since: September 2007
Authors: Shu Yan Xu, Xin Xin Ma, Ming Ren Sun
Synthesis of Boron Carbonitride Films by Plasma-based Ion Implantation Shuyan XU, Xinxin MA a and Mingren SUN School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China a xinxinma@126.com Keywords: BCN; Plasma-based ion implantation mixing; Chemical state; Mechanical properties.
Sci. vol. 218 (2003), p. 297 [7] Zenghu Han, Geyang Li, Jiawan Tian and Mingyuan Gu: Materials Letters vol. 57 (2002), p. 899 [8] Xu SY, Ma XX and Tang GZ: Journal of Nanoscience and Nanotechnology vol. 6 (2006), p. 1441
Online since: July 2011
Authors: Ying Shi Sun, Run Ze Liu, Tian Min Guan
Suppose the maximal force is , then: , namely (10) Wherein, (11) In the formula, means the contact deformation of the pin sleeve and the pin hole of cycloid gear in the direction of public normal of contact, namely: (12) (13) In the formula: means the contact deformation of the pin at the point of force, and the pin adopts the structure of suspended arm beam: In the formula, means poisson ratio, and the materials of cycloid gear and pin sleeve are both , ; E means the elastic modulus, and materials of forced parts are all ; As the torque on the cycloid gear is transferred by the pins from to , the following formula can be obtained according
Acknowledgement State Natural Sciences Fund Project “FA drive series research based on optimum tooth profile design theory” (50875029) References [1] Lixing Li, “Mechanical Design Manual” 24th chapter, wheel systems, Machinery Industry Press, 1991
Dalian Railway Institute Journal, 1999(3): 48~51
Online since: July 2012
Authors: Tao Yong Zhou, Xue Jun Wang, Bin Hu, Bo Yan
Discrete Element Method Analysis of Mechanical Properties of Railway Ballast during Tamping Process under Different Vibration Frequency Zhou Taoyong 1, a, Hu Bin 2,b , Wang Xuejun 1,c and Yan Bo 1,d 1 Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming 650500, China 2 China Railway Large Maintenance Machinery Co., Ltd.
(3) For the tangential sliding and rolling of particle are influenced by the friction between the particles, in addition to the Poisson's ratio, shear modulus and density of the materials properties of particles, the friction coefficient of particles should be defined in EDEM [4].
In addition to the Poisson's ratio, shear modulus and density of the materials properties of sleepers and tamping tines, the dynamic properties of tamping tines should be defined in EDEM.
Journal of Railway Engineering Society, No. 9, (2009), pp. 14-17
Online since: December 2012
Authors: Mat Johar Abdullah, A. Ismail
The various applications of ZnO come from the interesting properties of this material.
Another important characteristic of ZnO is that it is rich in defects, which have a direct impact on the electrical and optical properties of this material [1-2].
"A comprehensive review of ZnO materials and devices."
Journal of Applied Physics 98(4): 041301-103
Applied Surface Science 255(12): 6195-6200
Online since: January 2014
Authors: Yi Bin Wang, Jin Kui Li
Dalian area geology are mainly composed of rocks, the climate belongs to the temperate zone monsoon climate, and has the characteristics of Marine influence, the engineering properties of groundwater is diving water, according to the occurrence conditions are divided into bedrock fissure water and water volume changes along with the development situation of joints and fissures, less water, stable embedded depth of groundwater level in 10.2~25.00 m, Formation of geotechnical material parameters are shown in Table 1.
Formation of geotechnical material parameters Formation depth (m) unit weight (kN/m3) saturated unit weight (kN/m3) c (kN/m2) φ (o) elasticity (kN/m2) poisson ratio Miscellaneous fill 2.4 18.00 19.00 4.0 21.00 4800 0.320 Gravel 4.1 20.30 21.50 - 33.00 24100 0.300 Silty clay 4.85 22.00 23.00 24.0 32.00 83250 0.270 Decomposed rock 19.6 24.50 25.00 180.0 42.00 274300 0.240 The design of large cross section tunnel and metro main line, the early support is C25 early strength meshing concrete and steel grate, double-layer reinforcing mesh, lining thickness is 300mm.
Secondary lining adopts C30 concrete, waterproofing coating material, lining thickness is 300 mm, supporting parameters design are shown in Table 2.
Figure 1.Finite element mesh The calculation model is established on the basic of the real size and according to the parameters of formation of geotechnical material and supporting.
Journal of zhejiang university (engineering science), 2012, (7)
Online since: September 2013
Authors: Xiao Ying Yin, Qing Shan Liu, Ke Qin Li, Jun Li, Tian Hua Yan
Introduction Molecularly imprinted technology (MIT) is a new technique for preparing molecularly imprinted materials (MIPs) with recognition to target templates.
Acknowledgements This work was financially supported by National Natural Science Foundation, PR China (Grant No. 81173657, 81260690).
Journal of Chromatography B Vol. 850 (2007), p. 24
Preparation and Application of Picroside Ⅱ Molecularly Imprinted Ploymer for TCM Researching.Advanced Materials Research Vols. 287-290 (2011) pp 1987-1990
Online since: January 2013
Authors: Xin Yu Dong, Yu Lin Qiao, Yan Zang, Qing Sheng Cui
Experimental Experimental materials.
Acknowledgement This work was financially supported by National Natural Science Foundation (51075397).
Advanced Materials Research, 2011,338(2011):599-602
Vol. 26(6)(2001).p.497-512 [8] T.J.Peng, S.S.Yang, Z.Z.Yang: Jilin University Journals.Vol.36(2)(2006).p.88-90
Online since: September 2015
Authors: Nuriziani Hussin, A.A.H. Zaidi, Dina Maizana
Henshaw, “A Comparative Study of Soya Bean Oil and Palm Kernel Oil as Alternative to Transformer Oil, ” Journal of Emerging Trends in Engineering and Applied Sciences, (JETEASVol. 3, no. 1, pp. 33-37, 2012 [3] Aditama, S., "Dielectric properties of palm oils as liquid insulating materials: effects of fat content," Proceedings of 2005 International Symposium onElectrical Insulating Materials, 2005.
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