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Online since: August 2013
Authors: Li Hui Zheng, Zhi Heng Zhang, Ben Guang Guo, Shang Zhi Meng
These cases reflected excellent properties of the fuzzy ball drilling fluids including effectively sealing, good carrying and suspension ability, formation damage control and compatible weighted by inert materials.
The air core is surrounded by transformable fuzz in different lengths, so we vividly call this material as fuzzy ball (FB) [6].
About 40t cotton shells and lost circulation materials were used.
In addition, further thanks to National Science and Technology Major Project of the Ministry of Science and Technology of China-Large Oil and Gas Field and Demonstration Project for the Development of CBM at the eastern margin of Ordos Basin-(2011ZX05062-002).
Oil Journal, 25 (6): 92-95. (2004)
The air core is surrounded by transformable fuzz in different lengths, so we vividly call this material as fuzzy ball (FB) [6].
About 40t cotton shells and lost circulation materials were used.
In addition, further thanks to National Science and Technology Major Project of the Ministry of Science and Technology of China-Large Oil and Gas Field and Demonstration Project for the Development of CBM at the eastern margin of Ordos Basin-(2011ZX05062-002).
Oil Journal, 25 (6): 92-95. (2004)
Online since: December 2010
Authors: Hong Cheng, Peng Kun Liu, Yu Ling Wang, Chang Xin Nai
Damage can also be caused accidentally by heavy machinery used to place protective bedding material on the liner.
When no leaks are present, the voltage potential distribution will be relatively uniform in the material above the liner because of the high electrical resistivity of the liner material.
Journal of Hazardous Materials, vol.21 (1989), p.177
Research of Environmental Sciences, vol. 21 (2008), p.43 (in Chinese)
Research of Environmental Sciences, vol. 21 (2008), p.35 (in Chinese)
When no leaks are present, the voltage potential distribution will be relatively uniform in the material above the liner because of the high electrical resistivity of the liner material.
Journal of Hazardous Materials, vol.21 (1989), p.177
Research of Environmental Sciences, vol. 21 (2008), p.43 (in Chinese)
Research of Environmental Sciences, vol. 21 (2008), p.35 (in Chinese)
Online since: February 2012
Authors: Lei Wang, Jiang Ning Gai
Study on Optimization of Machining Parameters in Electrochemical Machining
Lei Wang1,a and Jiangning Gai1,b
1 College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao, 266061, China
akdjd073@163.com, b24395915@163.com
Keywords: ECM, machining parameter, the neural network, machining accuracy
Abstract.
Respectively the neurons of the input layer are the voltage U, the pressure difference △p, the cathode’s feeding velocity vf, the workpiece’s material, the temperature T and concentration of the electrolyte.
The material of three-dimentional curved surface is 2Cr13 steel and the electrolyte composition is NaNO3 with concentration of 10%.
Kozak: Journal of Materials Processing Technology, Vol.107(1-3)(2000), p.300
Zhang: Computational Materials Science, Vol.43 (2008), p.752
Respectively the neurons of the input layer are the voltage U, the pressure difference △p, the cathode’s feeding velocity vf, the workpiece’s material, the temperature T and concentration of the electrolyte.
The material of three-dimentional curved surface is 2Cr13 steel and the electrolyte composition is NaNO3 with concentration of 10%.
Kozak: Journal of Materials Processing Technology, Vol.107(1-3)(2000), p.300
Zhang: Computational Materials Science, Vol.43 (2008), p.752
Online since: October 2012
Authors: Stephen P. Midson, David J. Browne
Functionally gradient materials provide engineers with the flexibility to design components with different material properties at different locations.
Experimental Approach The Ni-Hard and Stellite feed materials used in this study were received from the US manufacturer.
Mendez, Joining metals using semi-solid slurries, MS Thesis, Department of Materials Science and Engineering, Massachusetts Institute of Technology, 1995
Browne, CDC casting, Advanced Materials & Processes 166(10) (2008) 38-40
Browne, Using the CDC process for the casting of low-cost functionally gradient materials, Foundry Trade Journal International 3644 (2009) 116-118
Experimental Approach The Ni-Hard and Stellite feed materials used in this study were received from the US manufacturer.
Mendez, Joining metals using semi-solid slurries, MS Thesis, Department of Materials Science and Engineering, Massachusetts Institute of Technology, 1995
Browne, CDC casting, Advanced Materials & Processes 166(10) (2008) 38-40
Browne, Using the CDC process for the casting of low-cost functionally gradient materials, Foundry Trade Journal International 3644 (2009) 116-118
Online since: October 2011
Authors: Lei Han, Zhe Sheng Chen, Lei Wan, Jin Zhang Xu
China.
2School of Nuclear Science and Technology , Lanzhou University, Lanzhou 730000, PR China.
Introduction The quaternary semiconductors such as CZTSe and Cu2ZnSnS4 (CZTS) thin films became a kind of promising materials to replace CIGS because of the rare elements In and Ga recently [1-6].
Cu2ZnSnS4-type thin film solar cells using abundant materials.
Advanced Materials 2010;22:E156-E159
Cu2ZnSnSe4 films by selenization of Sn–Zn–Cu sequential films.Journal of Physics and Chemistry of Solids 2009;70:567–570
Introduction The quaternary semiconductors such as CZTSe and Cu2ZnSnS4 (CZTS) thin films became a kind of promising materials to replace CIGS because of the rare elements In and Ga recently [1-6].
Cu2ZnSnS4-type thin film solar cells using abundant materials.
Advanced Materials 2010;22:E156-E159
Cu2ZnSnSe4 films by selenization of Sn–Zn–Cu sequential films.Journal of Physics and Chemistry of Solids 2009;70:567–570
Online since: October 2013
Authors: Xin Yong Xu, Ying Bin Kang, Di Zhang
Therefore, it is very important to choose a reasonable internal water pressure for using the material fully of the spiral case.
The material properties are shown in Table 1.
Fig. 1 FEM for spiral case Fig. 2 The construction model Fig. 3 The whole FEM Table 1 Mechanical parameters of materials Material E /GPa ν ρ /(kg∙m−3) Ultimate compressive strength /MPa Ultimate tensile strength /MPa C25 concrete 25 0.167 2500 16.7 1.75 Steel parts 210 0.3 7850 — — Grade Ⅱ for bar 200 0.3 7850 — — Material Parameters and Schemes.
Jiang, Journal of Huazhong University of Science and Technology (Nature and Science Edition), 5 (2008) 97-100
Dai, Journal of Hydroelectric Engineering, 1 (2006) 30-33.
The material properties are shown in Table 1.
Fig. 1 FEM for spiral case Fig. 2 The construction model Fig. 3 The whole FEM Table 1 Mechanical parameters of materials Material E /GPa ν ρ /(kg∙m−3) Ultimate compressive strength /MPa Ultimate tensile strength /MPa C25 concrete 25 0.167 2500 16.7 1.75 Steel parts 210 0.3 7850 — — Grade Ⅱ for bar 200 0.3 7850 — — Material Parameters and Schemes.
Jiang, Journal of Huazhong University of Science and Technology (Nature and Science Edition), 5 (2008) 97-100
Dai, Journal of Hydroelectric Engineering, 1 (2006) 30-33.
Online since: May 2014
Authors: Tetsuo Sakai, Hiroshi Utsunomiya, Ryo Matsumoto, Sho Manabe
Morphology of Edge Cracks of Rolled Magnesium Alloy Sheet
Sho Manabe1,a, Hiroshi Utsunomiya1,b, Tetsuo Sakai2,c and Ryo Matsumoto1,d
1Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, Osaka, Japan
2Joining and Welding Research Institute, Osaka University, Osaka, Japan
asho.manabe@mat.eng.osaka-u.ac.jp, buts@mat.eng.osaka-u.ac.jp,
csakai@mat.eng.osaka-u.ac.jp, dryo@mat.eng.osaka-u.ac.jp
Keywords: magnesium alloy, AZ31B, high speed rolling, edge cracks, rollability
Abstract.
Experimental procedure The material used in the present study was commercial AZ31B (Mg-3.2%Al-0.77%Zn -0.34%Mn) rolled sheets with the thickness of 3.0mm.
Koh, "High-speed heavy rolling of magnesium alloy sheets", Journal, 2006 (2006) 201-204
Utsunomiya, "Effect of rolling speed on deformability and microstructure in rolling of AZ31B magnesium alloy", Journal, 89-91 (2010) 227-231
Yue, "High speed rolling of Mg-3Al-1Zn alloy: Texture and microstructure analysis", Materials Science and Technology (United Kingdom), 28 (2012) 928-933.
Experimental procedure The material used in the present study was commercial AZ31B (Mg-3.2%Al-0.77%Zn -0.34%Mn) rolled sheets with the thickness of 3.0mm.
Koh, "High-speed heavy rolling of magnesium alloy sheets", Journal, 2006 (2006) 201-204
Utsunomiya, "Effect of rolling speed on deformability and microstructure in rolling of AZ31B magnesium alloy", Journal, 89-91 (2010) 227-231
Yue, "High speed rolling of Mg-3Al-1Zn alloy: Texture and microstructure analysis", Materials Science and Technology (United Kingdom), 28 (2012) 928-933.
Online since: January 2017
Authors: Viktor P. Reva, Vladimir Yu. Yagofarov, Valerii G. Kuryavyi, Aleksandr E. Filatenkov, Dmitrii A. Gulevskii
Materials and methods
For comparison of the experimental results with published data (4-6) and base plants extension study we used the seeds of pepper cultivar Golden Rain and tomato cultivar Bull Heart (pink).
Rusty peat moss (Sphagnum fuscum) was used as starting material.
We then carried out dehydration in a Sigma Laborzetrifugen centrifuge (Germany) and dried obtained material in a Binder drying chamber at 125–130°C for 60 min.
Wang, Effects of nanocarbon on the hydraulic parameters and the solute transport process for disturbed loessial soil, Arabian Journal of Geosciences, 9 (1), (2016) 1-13
Xing, Interactions between engineered nanomaterials and agricultural crops: Implications for food safety, Journal of Zhejiang University: Science A , 15 (8), (2014) 552-572
Rusty peat moss (Sphagnum fuscum) was used as starting material.
We then carried out dehydration in a Sigma Laborzetrifugen centrifuge (Germany) and dried obtained material in a Binder drying chamber at 125–130°C for 60 min.
Wang, Effects of nanocarbon on the hydraulic parameters and the solute transport process for disturbed loessial soil, Arabian Journal of Geosciences, 9 (1), (2016) 1-13
Xing, Interactions between engineered nanomaterials and agricultural crops: Implications for food safety, Journal of Zhejiang University: Science A , 15 (8), (2014) 552-572
Online since: July 2012
Authors: Xian Cheng Shi, Jin Song Zeng, Ke Fu Chen, Yu Cheng Feng
Fiber Length
Fiber length is one important index to evaluate raw paper-making materials and pulp quality.
Because the type of fiber raw materials and pulping method are the two important factors to decide the fiber morphology.
Jinzong Lin, 2002, BEIJING: SCIENCE PRESS [6].
Ding, E.J., C.K.Aidun., 2000, Journal of Fluid Mechanics, 423, pp. 317–344 [8].
Yanming Nai, Yiming Xie and Hong Wu, 2003, Paper Science and Technology, 22(3), pp. 35-37 [12].
Because the type of fiber raw materials and pulping method are the two important factors to decide the fiber morphology.
Jinzong Lin, 2002, BEIJING: SCIENCE PRESS [6].
Ding, E.J., C.K.Aidun., 2000, Journal of Fluid Mechanics, 423, pp. 317–344 [8].
Yanming Nai, Yiming Xie and Hong Wu, 2003, Paper Science and Technology, 22(3), pp. 35-37 [12].
Online since: August 2014
Authors: Abdul Razak Khairunisak, Kuan Yew Cheong, Soo Ai Ng, Poh Choon Ooi, Kean Chin Aw
The Effect of Hydrothermal Reaction Time on Formation of AuNPs by Sacrificial Templated Growth Hydrothermal Approach
SOO AI NG1, a *, KHAIRUNISAK ABDUL RAZAK2,b, KUAN YEW CHEONG3,c, POH CHOON OOI3, KEAN CHIN AW3
1 School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia
2 NanoBiotechnology Research and Innovation (NanoBRI), Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, 11800 USM, Penang, Malaysia
3 Mechanical Engineering, The University of Auckland, New Zealand
a ng_sooai86@yahoo.com, b khairunisak@eng.usm.my, c cheong@eng.usm.my
Keywords: AuNPs; organic memory; hydrothermal.
Journal of colloid and interface science, 303(2), 450–9
Journal of Materials Science: Materials in Electronics, Volume 24, Issue 8, pp 3116-3125.
Journal of colloid and interface science, 303(2), 450–9
Journal of Materials Science: Materials in Electronics, Volume 24, Issue 8, pp 3116-3125.