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Online since: January 2011
Authors: Jie Wang Ye, Li Liu, Chun Gui Du, Chun De Jin, Song Li
Materials and methods
Mao-bamboo particles were provided Hangzhou bamboo products Co.
Paving the well-treated materials to 30cm×30cm slab by manual method,and getting the product of binderless bamboo particle board after prepressing,hot pressing,trimming and sanding.
Z305054), The Innovative Team Foundation of Zhejiang Forestry University "(Grant No. 2006B03) and Key laboratory open object of ministry of education about biologic materials science and technology in 2004(04-12).
Adhesion science and technology, 1997, 11(3):419-427. 3 Vikari L.
Journal of Beijing Forestry University, 2009, 31(2):119-121.
Paving the well-treated materials to 30cm×30cm slab by manual method,and getting the product of binderless bamboo particle board after prepressing,hot pressing,trimming and sanding.
Z305054), The Innovative Team Foundation of Zhejiang Forestry University "(Grant No. 2006B03) and Key laboratory open object of ministry of education about biologic materials science and technology in 2004(04-12).
Adhesion science and technology, 1997, 11(3):419-427. 3 Vikari L.
Journal of Beijing Forestry University, 2009, 31(2):119-121.
Online since: December 2011
Authors: Qing Ping Lu, Chang Sheng Jiang, Qing Ju Hao
Materials and methods
Sample collection and pretreatment.
(Science and Technology). 38(2007) 445-446
Environmental science voluminous dictionary, BeiJing, 1991
Journal of Hazardous Materials. 121 (2005) 251-258
Enviromental Science. 28 (2007) 1900-1902.
(Science and Technology). 38(2007) 445-446
Environmental science voluminous dictionary, BeiJing, 1991
Journal of Hazardous Materials. 121 (2005) 251-258
Enviromental Science. 28 (2007) 1900-1902.
Online since: March 2013
Authors: Jakub Łagodziński, Zbigniew Kozanecki
Both models assumed nonlinear B-H properties for magnetic materials, i.e., the mild steel for the thrust plate and the ARMCO iron for electromagnet cores.
The material of the electromagnet cores was defined as the ARMCO iron and the material of the thrust plate was defined as the mild steel (both magnetization characteristics are shown in Fig. 3).
The mechanical properties of the thrust plate material are listed in Table 5.
Further tests would require an examination of dynamic behavior of the bearing, a development of the model that takes into account dynamic properties of magnetic materials and a comparison of the obtained results.
[3] Kozanecka D., Kozanecki Z., Łagodziński J., 2010, Active Magnetic Damper in a Power Transmission System, Communications in Nonlinear Science and Numerical Simulation, Journal Elsevier, No 16 (2011), pp. 2273-2278. www.elsevier.com/locate/ cnsns_1567.
The material of the electromagnet cores was defined as the ARMCO iron and the material of the thrust plate was defined as the mild steel (both magnetization characteristics are shown in Fig. 3).
The mechanical properties of the thrust plate material are listed in Table 5.
Further tests would require an examination of dynamic behavior of the bearing, a development of the model that takes into account dynamic properties of magnetic materials and a comparison of the obtained results.
[3] Kozanecka D., Kozanecki Z., Łagodziński J., 2010, Active Magnetic Damper in a Power Transmission System, Communications in Nonlinear Science and Numerical Simulation, Journal Elsevier, No 16 (2011), pp. 2273-2278. www.elsevier.com/locate/ cnsns_1567.
Online since: December 2012
Authors: Daniel G. Sanders, Mamidala Ramulu
Composite materials are being used to build the world’s most advanced military aircraft such as the F/A-22, B-2B, F-15E and the Joint Strike Fighter.
CFRP materials that are similar to those used on military airplanes are now being designed into the Dreamliner.
It is generally accepted that, under most circumstances, titanium is highly resistant to corrosion, even when in contact with CFRP materials.
Sanders, et al, Characterization of Superplastically Formed Friction Stir Weld in Titanium 6Al-4V: Preliminary Results, Journal of Materials Engineering and Performance, 17:187-192, D)I: 10.1007/s11665-007-9186-0, ASM International, 2007
Sanders, Current State-of-the-Art and the Future in Airframe Manufacturing Using Superplastic Forming Technologies, Material Science Forum, Vols. 357-359 (2001), pp. 17-22, Trans Tech.
CFRP materials that are similar to those used on military airplanes are now being designed into the Dreamliner.
It is generally accepted that, under most circumstances, titanium is highly resistant to corrosion, even when in contact with CFRP materials.
Sanders, et al, Characterization of Superplastically Formed Friction Stir Weld in Titanium 6Al-4V: Preliminary Results, Journal of Materials Engineering and Performance, 17:187-192, D)I: 10.1007/s11665-007-9186-0, ASM International, 2007
Sanders, Current State-of-the-Art and the Future in Airframe Manufacturing Using Superplastic Forming Technologies, Material Science Forum, Vols. 357-359 (2001), pp. 17-22, Trans Tech.
Online since: June 2004
Authors: Albrecht Winnacker, Matthias Bickermann, Boris M. Epelbaum
Winnacker1
1
Department of Materials Science 6, Univ. of Erlangen-Nürnberg, Martensstr. 7, D-91058
Erlangen, Germany
2
SiCrystal AG, Paul-Gossen-Str. 100, D-91052 Erlangen, Germany
Keywords: AlN single crystal, bulk growth, sublimation growth, growth rate, growth temperature.
They include AlGaN/AlN quantum wells (MQW) emitting in deep UV region (shortest stimulated emission of 258 nm reported up to date in semiconductor materials) [1] as well as high-power AlGaN/GaN/AlN HFETs being superior than analogous devices made on SiC [2].
The AlN source powder material was contained inside elongated tungsten crucible.
Journal Title and Volume Number (to be inserted by the publisher) 3 If we consider evaporation into vacuum, i.e. the vapor is stoichiometric, pN2= ½ pAl and the mixture will contain only 1/3 of nitrogen [9].
The source material was carefully purified by repeated sublimation prior to growth.
They include AlGaN/AlN quantum wells (MQW) emitting in deep UV region (shortest stimulated emission of 258 nm reported up to date in semiconductor materials) [1] as well as high-power AlGaN/GaN/AlN HFETs being superior than analogous devices made on SiC [2].
The AlN source powder material was contained inside elongated tungsten crucible.
Journal Title and Volume Number (to be inserted by the publisher) 3 If we consider evaporation into vacuum, i.e. the vapor is stoichiometric, pN2= ½ pAl and the mixture will contain only 1/3 of nitrogen [9].
The source material was carefully purified by repeated sublimation prior to growth.
Online since: June 2010
Authors: Lei Wang, Yu Chen Wang, Hong Yan Liu, Xue Jiao Chen, Yan Yu, Yang Liu
The electropulsing has been widely applied to materials processing and attracted more
and more attention for use, especially in the metallurgical process of metallic materials [1-4].
It has been recognized that in metallic materials, dissipation of electronic excitation into heat is very fast and the rate of the temperature rising can achieve 10 6 °C ·s-1 order [9].
Conrad: Journal of Physics E: Scientific Instruments Vol. 22(1989), p. 1026 [3] O.
Xie: Rare Metal Materials and Engineering Vol. 35(2006), p. 1408 [7] Z.
Feng: Metal Physics (Book 1), Science Press, Beijing(2000)
It has been recognized that in metallic materials, dissipation of electronic excitation into heat is very fast and the rate of the temperature rising can achieve 10 6 °C ·s-1 order [9].
Conrad: Journal of Physics E: Scientific Instruments Vol. 22(1989), p. 1026 [3] O.
Xie: Rare Metal Materials and Engineering Vol. 35(2006), p. 1408 [7] Z.
Feng: Metal Physics (Book 1), Science Press, Beijing(2000)
Online since: September 2013
Authors: Jing Sun, Guang Jun Yang, Jian Jun Liu
Aeroacoustic Characteristics of Cavity and Effect Study of Mesh on Noise Suppression
Jing Sun1,a, Guang-jun Yang2,b, Jianjun Liu1,c
1National Key Laboratory of Science and Technology on Aerodynamic Design and Research, College of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, China
2National Key Laboratory of Science and Technology on UAV, Xi’an 710065, China
asunjinglemon@nwpu.edu.cn, byanggj_1031@nwpu.edu.cn, cliujianjun0421@126.com
Keywords: Cavity, Wind tunnel experiments, Mesh, Noise spectrum, Pressure distribution
Abstract.
The cavity is made of a resin material processed separately and can be fixed at both ends on surpporting model.
Foundation item: Aeronautical Science Foundation of China (2010ZA53011) References [1] J.
Journal of Fluids and Structures, 18(6): 715–728, 2003 [3] Michael J.
The cavity is made of a resin material processed separately and can be fixed at both ends on surpporting model.
Foundation item: Aeronautical Science Foundation of China (2010ZA53011) References [1] J.
Journal of Fluids and Structures, 18(6): 715–728, 2003 [3] Michael J.
Online since: May 2013
Authors: Wei Tang, Xin Ting Zhang, Li Chao Zhao, Shi Sheng Guan, Ming Yi Jiang
Research on measurement method of parallelism of artillery’s directional beam based on the laser radar
Wei Tang1, a,Xinting Zhang2,b,Lichao Zhao1,c,Shisheng Guan1,d,
Mingyi Jiang1,e
1Army 63853
2Changchun University of Science and Technology
atwei1997@sohu.com,bluoyewuhens@163.com,c632304012@qq.com,dWLMGSC@126.com, elijin98765@126.com
Keywords: Laser radar;Artillery directed beam;Parallel measurements
Abstract.
Using the mirror on the hidden point measurement can be measured directly by the installing components, but being not able to make a calibration model which saves a lot of manpower, material and financial resources.
Flexible coordinate measuring instrument, Changchun University of Science and Technology, 2006 [3] Sidong Zhong, et al.
Journal of Chongqing Institute of Technology (Natural Science Edition), 2011 [5] Jiawu Song, Guoyu Zhang, The large-diameter laser scanning dynamic measurement system [Jl.
Using the mirror on the hidden point measurement can be measured directly by the installing components, but being not able to make a calibration model which saves a lot of manpower, material and financial resources.
Flexible coordinate measuring instrument, Changchun University of Science and Technology, 2006 [3] Sidong Zhong, et al.
Journal of Chongqing Institute of Technology (Natural Science Edition), 2011 [5] Jiawu Song, Guoyu Zhang, The large-diameter laser scanning dynamic measurement system [Jl.
Online since: December 2006
Authors: Xian Li Liu, Jing Shu Hu, Hong Min Pen, Yu Wang, Tao Chen, Zhen Chang
Effect of Air Cooling on the Process of High Speed Hard Cutting GCr15
Jingshu Hu
1,a
, Hongmin Pen1,b, Yu Wang1,b
, Tao Chen1,b,
Zhen Chang1,b and Xianli Liu1,b
1
School of Mechanical & Power Engineering, Harbin University of Science &Technology
Harbin 150080, China
a
hjs2001@sohu.com, bcuttingtools_lab@hrbust.edu.cn
Keywords: Air cooling, Vortex tube, High speed hard cutting, GCr15, PCBN tool
Abstract.
Because low temperature of the cutting point causes workpiece material is hardened locally, cutting load is reduced and tool wear is decreased, which is useful for chip shear breaking.
Acknowledgements This project is supported by National Natural Science Foundation of China (No. 50575061).
Bayoumi: International Journal Of Mechanical Sciences, Vol.45 (2003), pp.1201-1228
Because low temperature of the cutting point causes workpiece material is hardened locally, cutting load is reduced and tool wear is decreased, which is useful for chip shear breaking.
Acknowledgements This project is supported by National Natural Science Foundation of China (No. 50575061).
Bayoumi: International Journal Of Mechanical Sciences, Vol.45 (2003), pp.1201-1228
Online since: December 2014
Authors: Jui Chiao Tseng
Fuzzy clustering also suits the data of social science because fuzzy concepts could explain many phenomena in social science [4].
The results showed that cognition diagnosis would be feasible for remedial teaching and design of teaching material .
Verkuilen, Fuzzy set theory: applications in the social sciences, Sage Publications, Thousand Oaks, CA, 2006
Tatsuoka: Journal of Education Measurement Vol. 20 (1983) PP. 221-230
The results showed that cognition diagnosis would be feasible for remedial teaching and design of teaching material .
Verkuilen, Fuzzy set theory: applications in the social sciences, Sage Publications, Thousand Oaks, CA, 2006
Tatsuoka: Journal of Education Measurement Vol. 20 (1983) PP. 221-230