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Online since: October 2004
Authors: Mark A. Miodownik, F. Lin, Andrew Godfrey, Qing Liu
Liu
1
1
Dept. of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
2
Dept. of Mechanical Engineering, King's College London, Strand, London WC2R 2LS, UK
Keywords: Monte Carlo, cube texture, nickel, grain growth, simulation
Abstract.
Some simulations were also carried out using boundary energy and mobility functions modified to include a sharp cusp near θ =60 o , to reflect the view that Σ3 twin boundaries in FCC materials have both a low energy and low mobility (see Fig. 3b).
Acknowledgements This work was supported by the Natural Science Foundation of China under grant no: 50231030.
MM acknowledges support from the National Endowment for Science, Technology and the Arts (NESTA).
Miodownik: Journal of Light Metals, Vol. 2 (2002) p125
Some simulations were also carried out using boundary energy and mobility functions modified to include a sharp cusp near θ =60 o , to reflect the view that Σ3 twin boundaries in FCC materials have both a low energy and low mobility (see Fig. 3b).
Acknowledgements This work was supported by the Natural Science Foundation of China under grant no: 50231030.
MM acknowledges support from the National Endowment for Science, Technology and the Arts (NESTA).
Miodownik: Journal of Light Metals, Vol. 2 (2002) p125
Online since: December 2014
Authors: Lukas Smolarik, Milan Strbo, Dušan Mudrončík
Modeling and Control of Compression System
Lukas Smolarik1,a, Dusan Mudroncik2,b, Milan Strbo3,c
1Slovak University of Technology in Bratislava, Faculty of Materials Science and Technology, Hajdoczyho 1, 91724, Trnava, Slovakia
2Slovak University of Technology in Bratislava, Faculty of Materials Science and Technology
3Slovak University of Technology in Bratislava, Faculty of Materials Science and Technology
alukas.smolarik@stuba.sk, bdusan.mudroncik@stuba.sk, cmilan.strbo@stuba.sk
Keywords: surge, model, surge suppresion, surge and control curve, compressor characteristics
Abstract.
Greitzer, Surge Dynamics in a Free-Spool Centrifugal Compressor System, Journal of Turbomachinery, Vol. 114, No. 2 (1992), pp. 321–332
Applied Mechanics and Materials, Vol. 404 (2013) 200-206.
Greitzer, Surge Dynamics in a Free-Spool Centrifugal Compressor System, Journal of Turbomachinery, Vol. 114, No. 2 (1992), pp. 321–332
Applied Mechanics and Materials, Vol. 404 (2013) 200-206.
Online since: December 2011
Authors: Bo Chen, Jian Tong Ding, Qiu Bo Kang, Yin Bai
(4)
Where E0 is 28days’ elastic modulus of concrete, s is a parameter characterize the hydration rate of cementitious materials, nE is a coefficient characterizes the development of tensile elastic modulus. s, nE are obtained by fitting the measured 3, 28days’ elastic modulus values
(5) Where f0 is 28days’ tensile strength of the concrete, s is a parameter characterize the hydration rate of cementitious materials, nf is a coefficient characterizes the development of tensile strength. s, nf are obtained by fitting the measured 3, 28days’ tensile strength values
This is because the expansive deformation is partially offset by the large autogenous shrinkage which caused by large amount of cementitious materials in pump concrete.
Acknowledgements This work was supported by the National Key Technology R&D Program (Grant No.2008BAB29B04), the State Key Program of National Natural Science Fund Committee (Grant No.50539040) and the Key Project of Hydraulic Science and Technology of Jiangsu Province (Grant No.2009057).
Chen: Journal of Jiangsu University (Natural Science Edition) Vol. 32 (2011), p. 236 [3] R.
(5) Where f0 is 28days’ tensile strength of the concrete, s is a parameter characterize the hydration rate of cementitious materials, nf is a coefficient characterizes the development of tensile strength. s, nf are obtained by fitting the measured 3, 28days’ tensile strength values
This is because the expansive deformation is partially offset by the large autogenous shrinkage which caused by large amount of cementitious materials in pump concrete.
Acknowledgements This work was supported by the National Key Technology R&D Program (Grant No.2008BAB29B04), the State Key Program of National Natural Science Fund Committee (Grant No.50539040) and the Key Project of Hydraulic Science and Technology of Jiangsu Province (Grant No.2009057).
Chen: Journal of Jiangsu University (Natural Science Edition) Vol. 32 (2011), p. 236 [3] R.
Online since: January 2013
Authors: Jiang Nan Shen, Juan Li, Ting Ting Jiang, Hui Min Ruan
For example, a membrane material containing -NH2 and -COOH as the CO2 facilitated carrier was obtained by radical polymerization.
However, RAFT process used to prepare VSA-MSA for CO2 separation membrane materials has not been reported in the past work.
MTTCD BDATC CP DB Scheme 2 Chemical structures of MTTCD, BDATC,CPDB EXPERIMENTAL Materials MAM was purified by recrystallization from H2O at 80 ˚C.
Acknowledgements The authors are grateful for subsidy provided by the National Natural Science Foundation of China (No. 20906082) and Natural Science Foundation of Zhejiang Province (No.
Liu, Journal of Polymer Science: Part A: Polymer Chemistry, Vol. 43(2005), p.1973
However, RAFT process used to prepare VSA-MSA for CO2 separation membrane materials has not been reported in the past work.
MTTCD BDATC CP DB Scheme 2 Chemical structures of MTTCD, BDATC,CPDB EXPERIMENTAL Materials MAM was purified by recrystallization from H2O at 80 ˚C.
Acknowledgements The authors are grateful for subsidy provided by the National Natural Science Foundation of China (No. 20906082) and Natural Science Foundation of Zhejiang Province (No.
Liu, Journal of Polymer Science: Part A: Polymer Chemistry, Vol. 43(2005), p.1973
Online since: October 2022
Authors: Peng Wang, Chun Feng, Nan Ji, Yan Long, Xian Ren Kuang, Kai Qi Ge
Experimental
Material and Solution.
Shokir, Experimental Investigation of Miscible CO2 Flooding, Petroleum Science and Technology, 29 (2011) 2005-2012
[5] ZHANG De-ping, Pilot test of research and application status of CO2 flooding production technology, Science and technology review,29( 2011) 75-79
[8] Xue Yan, Research on Corrosion Behavior of Low Cr Corrosion-resistant Materials in Tarim Oilfield, Xi’an: Xi’an Shiyou University, 2010
[15] Yongxin Lu, Hongyang Jing, Yongdian Han, Lianyong Xu, Effect of temperature on the 3Cr low-alloyed steel initial corrosion behavior in CO2 solution, Materials Chemistry and Physics,178 (2016) 160-172
Shokir, Experimental Investigation of Miscible CO2 Flooding, Petroleum Science and Technology, 29 (2011) 2005-2012
[5] ZHANG De-ping, Pilot test of research and application status of CO2 flooding production technology, Science and technology review,29( 2011) 75-79
[8] Xue Yan, Research on Corrosion Behavior of Low Cr Corrosion-resistant Materials in Tarim Oilfield, Xi’an: Xi’an Shiyou University, 2010
[15] Yongxin Lu, Hongyang Jing, Yongdian Han, Lianyong Xu, Effect of temperature on the 3Cr low-alloyed steel initial corrosion behavior in CO2 solution, Materials Chemistry and Physics,178 (2016) 160-172
Online since: March 2013
Authors: Qing Xuan Shi, Kun Li, Zhi Feng Guo, Jian Bo Tian
It works that have not yet been covered after summarizing each research methods and research contents, which will provide scientific reference material for the intensive research on steel-concrete composite coupling beam.
It points out the existing problems, which will provide scientific reference material for the intensive research.
Acknowledgements The financial assistance provided by the National Natural Sciences Foundation of China (No. 51178380 and No. 51108370) and Scientific Research Program of Shaanxi Province Education Department(No. 2010JK625) is gratefully acknowledged.
Sang: Journal of South China University of Technology,Vol.23(1995), P.34 [3] B.
It points out the existing problems, which will provide scientific reference material for the intensive research.
Acknowledgements The financial assistance provided by the National Natural Sciences Foundation of China (No. 51178380 and No. 51108370) and Scientific Research Program of Shaanxi Province Education Department(No. 2010JK625) is gratefully acknowledged.
Sang: Journal of South China University of Technology,Vol.23(1995), P.34 [3] B.
Online since: September 2016
Authors: Dib Abdelkarim, László Gergely Vigh
Virtual experimenting – considering actual material behavior and imperfections – is invoked for the calibration of the model.
However, welding vertical stiffeners causes softening of the material of the whole cross-section, resulting in several weak points in the member along its length.
Acknowledgement This paper was supported by the János Bolyai Research Scholarship of the Hungarian Academy of Sciences.
Mikawa, Proposal of a new aluminum stiffened girder, JSCE Journal of Structural Engineering, Vol. 51A (2005), pp. 203-210.
However, welding vertical stiffeners causes softening of the material of the whole cross-section, resulting in several weak points in the member along its length.
Acknowledgement This paper was supported by the János Bolyai Research Scholarship of the Hungarian Academy of Sciences.
Mikawa, Proposal of a new aluminum stiffened girder, JSCE Journal of Structural Engineering, Vol. 51A (2005), pp. 203-210.
Online since: October 2015
Authors: Vladimir S. Egorkin, Sergey V. Gnedenkov, Sergey L. Sinebryukhov, Igor E. Vyaliy, Denis Opra
Introduction
Magnesium alloys are attractive and promising materials for industry due to their low density, high specific strength, and ease of processing.
Composite coatings (containing organic and inorganic polymeric materials in the porous part of the outer layer) can significantly improve the protective characteristics of the materials [12–16].
The analysis of the electrochemical parameters (Table 2) showed that threefold applications (x3) of the PVDF-polymer onto the PEO-coating, reduced the corrosion currents by more than 4 orders of magnitude (down to 6.0·10-9 A·cm-2), as compared to the bare material (3.3·10-5 A·cm-2).
Li, Progress in the production and modification of PVDF membranes, Journal of Membrane Science. 375 (2011) 1-27
Composite polymer-containing protective coatings on magnesium alloy MA8, Corrosion Science. 85 (2014) 52–59.
Composite coatings (containing organic and inorganic polymeric materials in the porous part of the outer layer) can significantly improve the protective characteristics of the materials [12–16].
The analysis of the electrochemical parameters (Table 2) showed that threefold applications (x3) of the PVDF-polymer onto the PEO-coating, reduced the corrosion currents by more than 4 orders of magnitude (down to 6.0·10-9 A·cm-2), as compared to the bare material (3.3·10-5 A·cm-2).
Li, Progress in the production and modification of PVDF membranes, Journal of Membrane Science. 375 (2011) 1-27
Composite polymer-containing protective coatings on magnesium alloy MA8, Corrosion Science. 85 (2014) 52–59.
Online since: January 2010
Authors: Zhao Miao, Tong Jiang Peng, Yong Guang Xi, Wei Yang
After reached exposure time, the
degrees of exfoliation (the thickness of exfoliated material/the thickness of original material) were
determined.
Acknowledgement: The authors are grateful to the National Science and Technology Support Program (2008BAE60B00).
Muromtsev: Inorganic Materials Vol. 26 (1990), p. 104
Girgin: Turkish Journal of Chemistry Vol. 26 (2002), p.431
Mamina: Inorganic Materials Vol. 26 (1990), p.868.
Acknowledgement: The authors are grateful to the National Science and Technology Support Program (2008BAE60B00).
Muromtsev: Inorganic Materials Vol. 26 (1990), p. 104
Girgin: Turkish Journal of Chemistry Vol. 26 (2002), p.431
Mamina: Inorganic Materials Vol. 26 (1990), p.868.
Online since: January 2007
Authors: Yao Nan Cheng, Zhen Jia Li, Y.B. Wang, Y.G. Zhao
Wang
3.c
,Y.G.Zhao
4.d
1�2�3�4Mechanical Engineering, Harbin University of Science and Technology,Harbin,150080
a
E-mail:lizjbox@hotmail.com,b hustcyn1120@sina.com,d davidzhaogang@163.com
Keywords� 3D complex groove,Waved-edge ,Temperature field,Heating density function.
Especially when cutting some materials difficult to mill (such as stainless steel, heat-resistant steel, high temperature alloy), the cutting tool's main failure form is felt disrepair.
One point is stressed that in order to unify the unit of heat parameter and material of tool, we use meter as the unit of coordinates in equations above.
CHINESE JOURNAL OF MECHANICAL ENGINEERING(edition of Chinese). 2003310�p.106~109
Shanghai science and technology press, 1984,p.67~75 [4] W.D.Shen,P.Z.Zhen and D.N.Jiang.
Especially when cutting some materials difficult to mill (such as stainless steel, heat-resistant steel, high temperature alloy), the cutting tool's main failure form is felt disrepair.
One point is stressed that in order to unify the unit of heat parameter and material of tool, we use meter as the unit of coordinates in equations above.
CHINESE JOURNAL OF MECHANICAL ENGINEERING(edition of Chinese). 2003310�p.106~109
Shanghai science and technology press, 1984,p.67~75 [4] W.D.Shen,P.Z.Zhen and D.N.Jiang.