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Online since: September 2013
Authors: Theo J. Rickert, Dominik Dapprich, Dirk Bähre, Horst Brünnet
Material behaviour during AF.
The material behaviour during AF can be described as follows: During the AF pressure ramp up, the material behaves elastically up to the yield stress σy.
Fig. 1: Geometry and material data of the investigated AISI 4140.
Material removal was modeled by simply deleting the elements.
Bähre, Modeling of residual stresses and shape deviations along the process chain of Autofrettaged components, Journal of Materials Science and Engineering A 1/7A (2011) 915-936
The material behaviour during AF can be described as follows: During the AF pressure ramp up, the material behaves elastically up to the yield stress σy.
Fig. 1: Geometry and material data of the investigated AISI 4140.
Material removal was modeled by simply deleting the elements.
Bähre, Modeling of residual stresses and shape deviations along the process chain of Autofrettaged components, Journal of Materials Science and Engineering A 1/7A (2011) 915-936
Online since: April 2011
Authors: Chang Hui Yang, Chong Wang, Chao Jun Wan, Yan Feng Tian
Comparison of Fluidity between Metakaolin and Silica Fume Concretes
WANG Chong1,a, YANG Changhui1,b, WAN Chaojun1,c, TIAN Yanfeng1,d
1College of Materials Science and Engineering, Chongqing University, 400045, China
achongwang@cqu.edu.cn, bychh@cqu.edu.cn, ccjwan@cqu.edu.cn, dtyfcqu2006@126.com
Keywords: Metakaolin,Silica fume,High performance concrete, Fluidity,Comparison.
Experimental Programs 2.1 Raw Materials 1) P.O 42.5 cement (C) was manufactured by Chongqing Lafarge Company.
Construction and Building Materials, 20(2006), 858-865 [10] H.
Advanced Cement Based Materials, 2 (1993), 83-91 [17] Long Guangcheng, Xie Youjun, Wang Xinyou.
Journal of Building Materials, 2002, 5(1), 21-25 (In Chines)
Experimental Programs 2.1 Raw Materials 1) P.O 42.5 cement (C) was manufactured by Chongqing Lafarge Company.
Construction and Building Materials, 20(2006), 858-865 [10] H.
Advanced Cement Based Materials, 2 (1993), 83-91 [17] Long Guangcheng, Xie Youjun, Wang Xinyou.
Journal of Building Materials, 2002, 5(1), 21-25 (In Chines)
Online since: November 2011
Authors: Yue Sheng Zhang
Because the supervision industry informatization employees professional level is low; The information of the authorities in charge of supervision industry is not clear, have a plenty of science, have a plenty of work in the letter hall, chaos; Supervision company service effect is not obvious, the sense of responsibility, coordination ability is poor, professional morality low, appear even and joint deceive the phenomenon of the manufacturer.
To cause a major accident enterprise and individual to tempted to performance, excellent enterprise and individual give spiritual and material reward.
Science and technology enterprise and coastal. 2007
Journal of economic management cadre institute. 2006
Modern management science. 2006 (12)
To cause a major accident enterprise and individual to tempted to performance, excellent enterprise and individual give spiritual and material reward.
Science and technology enterprise and coastal. 2007
Journal of economic management cadre institute. 2006
Modern management science. 2006 (12)
Online since: September 2013
Authors: Ying Zhang, Xiao Qian Ma, Zhen Wei Zhang, Cheng Ming Kang
Research on Relationship of Pressure Distribution and Particles Separation in Cyclone
Ying Zhang1,a,Xiaoqian Ma2,b,Zhenwei Zhang3,c,Chengming Kang4,d
1School of Information Science and Engineering, Northeastern University, Shenyang, Liaoning, 110004, China
2School of Computer Engineering, Nanyang Technological University, 637634, Singapore
3School of Mechanical Engineering and Automation, Northeastern University, Shenyang, Liaoning,
110004, China
4School of Mechanical Engineering and Automation, Northeastern University, Shenyang, Liaoning, 110004, China
asuperzy1115@126.com,bmaxiaoqian.bcg@gmail.com,
czzw1658@126.com,dsy2010_adlso@126.com
Keywords: Pressure Distribution, Particles, Simulation
Abstract.
Outside air can be easily inhaled if the sealing is bad at the bottom of the hopper which can lead the phenomena of stagnation or reflux in the lower part of hopper and can be not conducive to material separation.
Jin: Dust Collecting Equipment: Shanghai Science and Technology Press, China, 1983
Zhang: Numerical Simulation on Gas Flow Field of Cyclone Separator: Journal of Beijing University of Technology
Wang: Numerical Calculation and Experimental Research on Gas-solid Phase in Cyclone Separator: Doctoral Thesis, Chinese Academy of Sciences, China, 2003, pp. 33-55.
Outside air can be easily inhaled if the sealing is bad at the bottom of the hopper which can lead the phenomena of stagnation or reflux in the lower part of hopper and can be not conducive to material separation.
Jin: Dust Collecting Equipment: Shanghai Science and Technology Press, China, 1983
Zhang: Numerical Simulation on Gas Flow Field of Cyclone Separator: Journal of Beijing University of Technology
Wang: Numerical Calculation and Experimental Research on Gas-solid Phase in Cyclone Separator: Doctoral Thesis, Chinese Academy of Sciences, China, 2003, pp. 33-55.
Online since: December 2013
Authors: Lina Liao, Qing Rong Liu, Ying Jun Ruan, Jia Zheng Wu, Ya Peng Zhang
Gas production rate of anaerobic fermentation tank was 0.8, it is 400m3 daily biogas production capacity of raw material of 500m3/d.
Acknowledgements This work was financially supported by the "Twelfth Five-Year" National Science and Technology Support Plan—the Major Science and Technology Project in Comprehensive Environmental Control in Villages and Towns (No. 2012BAJ21B01-01) and the Key Fund of Shanghai Science Technology Committee (No. 13160501000).
Journal of Yunnan normal university (2011) [3] Information on http://doc.mbalib.com/view/92bdeace43aa337be55aa5333203e28d.html [4] Information on http://www.sdpc.gov.cn/zcfb/zcfbtz/2010tz/t20100728_363362.htm [5] Information on http://detail.cn.china.cn/provide/2052275937.html [6] Information on http://detail.cn.china.cn/provide/1857223632.html [7] Information on http://detail.1688.com/offer/941519891.html [8] SNEC 4th (2010) International Photovoltaic Power Generation Conference (Shanghai).
Acknowledgements This work was financially supported by the "Twelfth Five-Year" National Science and Technology Support Plan—the Major Science and Technology Project in Comprehensive Environmental Control in Villages and Towns (No. 2012BAJ21B01-01) and the Key Fund of Shanghai Science Technology Committee (No. 13160501000).
Journal of Yunnan normal university (2011) [3] Information on http://doc.mbalib.com/view/92bdeace43aa337be55aa5333203e28d.html [4] Information on http://www.sdpc.gov.cn/zcfb/zcfbtz/2010tz/t20100728_363362.htm [5] Information on http://detail.cn.china.cn/provide/2052275937.html [6] Information on http://detail.cn.china.cn/provide/1857223632.html [7] Information on http://detail.1688.com/offer/941519891.html [8] SNEC 4th (2010) International Photovoltaic Power Generation Conference (Shanghai).
Online since: August 2013
Authors: Zhi Wei Feng, Qing Bin Zhang, Qian Gang Tang
Vibration Isolator Design for Space Application Based on Multiobjective Optimization Method
Zhiwei Feng1, a, Qiangang Tang1, b, Qingbin Zhang1, c
1Department of Aerospace Science and Engineering, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, China
afengzhw@nudt.edu.cn, bkdtqg@sina.com, cqingbinzhang@sina.com.cn
Keywords: Vibration Isolation, Mechanism Design, Multiobjective Optimization, Spacecraft
Abstract.
The design constraints include three aspects: (1) the stiffness of vibration isolation system is enough such that the resonant peak frequency is separated from control system and flexible part, such as solar array; (2) the system has certain attenuation for high-frequency range that induced by momentum wheel; (3) the damping is not much large so the damping material is easily obtained.
Belvin, Sparks D.W., Horta L.G., et al., On the isolation of science payloads from spacecraft vibrations.
Messac, Control-structure integrated design with closed-form design metrics using physical programming, AIAA Journal. 36(1998): 855-864
The design constraints include three aspects: (1) the stiffness of vibration isolation system is enough such that the resonant peak frequency is separated from control system and flexible part, such as solar array; (2) the system has certain attenuation for high-frequency range that induced by momentum wheel; (3) the damping is not much large so the damping material is easily obtained.
Belvin, Sparks D.W., Horta L.G., et al., On the isolation of science payloads from spacecraft vibrations.
Messac, Control-structure integrated design with closed-form design metrics using physical programming, AIAA Journal. 36(1998): 855-864
Online since: November 2013
Authors: Cheng Bin Ge, Ai Hong Ji, Tao Han, Chang Long Li
Introduction
With the rapid development of the modern science and technology, more attention has been paid to the ornithopter.
Material and methods In this paper, Dragonflies (Brachythemis contaminate), Wasps (Wasp), uangs (Cyrtotracjelus longimanus) and Bamboo Beetles (Otidognathus davidis Fair) were selected as the subjects.
Acknowledgement This work was supported by the National Basic Research Program of China (973 Program) (Grant no. 2011CB302106), National Natural Science of Foundation of China (Grant Nos 50975140 and 31070344 ).
Journal of Machine Design. 1, 26 (2009) 56-58
Chinese Science Bulletin, 6, 51 (2006) 634-640.
Material and methods In this paper, Dragonflies (Brachythemis contaminate), Wasps (Wasp), uangs (Cyrtotracjelus longimanus) and Bamboo Beetles (Otidognathus davidis Fair) were selected as the subjects.
Acknowledgement This work was supported by the National Basic Research Program of China (973 Program) (Grant no. 2011CB302106), National Natural Science of Foundation of China (Grant Nos 50975140 and 31070344 ).
Journal of Machine Design. 1, 26 (2009) 56-58
Chinese Science Bulletin, 6, 51 (2006) 634-640.
Online since: January 2007
Authors: L.Q. Du, Y. Lv, Wei Jie Dong, X.G. Gao
Hydrothermal PZT thin film was researched by Y.Ohba
[5] et al at Tokyo Institute of
* This project is supported by National Natural Science foundation of China (No.90207003), Scientific Research Foundation of Ministry of Education and
Dalian City for the Returned Overseas Chinese Scholars, Doctoral Startup Fund of Liaoning Province of China (No.20051080).
(14) Where S is the area of the electrode; xS and yS are sensitivities of the oscillograph along X and Y axis direction respectively; 0C is the compensatory capacitance; 0H is longitudinal coordinate of sP in the P E− curve; in the case of perovskite polycrystal material, 1.28K = ; h is the thickness of the PZT element; 0L is the transverse intercept of the hysteresis loops.
Acknowledgments This work was supported by National Natural Science foundation of China (No.90207003), Scientific Research Foundation of Ministry of Education and Dalian City for the Returned Overseas Chinese Scholars, Doctoral Startup Fund of Liaoning Province of China (No.20051080).
Journal of Appl.Phys 9B,30 (1991), pp.2174-2177
[9] Yangying: Master Thesis,Xi'an university of Science & Technology,.
(14) Where S is the area of the electrode; xS and yS are sensitivities of the oscillograph along X and Y axis direction respectively; 0C is the compensatory capacitance; 0H is longitudinal coordinate of sP in the P E− curve; in the case of perovskite polycrystal material, 1.28K = ; h is the thickness of the PZT element; 0L is the transverse intercept of the hysteresis loops.
Acknowledgments This work was supported by National Natural Science foundation of China (No.90207003), Scientific Research Foundation of Ministry of Education and Dalian City for the Returned Overseas Chinese Scholars, Doctoral Startup Fund of Liaoning Province of China (No.20051080).
Journal of Appl.Phys 9B,30 (1991), pp.2174-2177
[9] Yangying: Master Thesis,Xi'an university of Science & Technology,.
Online since: August 2013
Authors: Bing Dai, Xiao Dong Yi, Xue Juan Zhang, Lei Zhang
The ZTR refers to the numerical distribution for high in middle and low in south and north in the Sa II + III reservoir group in the research area, obviously the northwest and southwest trend to range from small to large, along the direction that clastic composition maturity is high and transportation distance is far, indicate that there are two provenances in the research area, mainly the provenances of northwest and southwest, and provenance provided material basis for the formation of the sedimentary system, thus it can indirectly indicate the control scope of the sedimentary system, and through the characteristics of heavy mineral assemblage in the research area, two sedimentary systems agree with each other.
Acknowledgements This work was financially supported by The Science Foundation for Young Scholars of Heilongjiang Province (QC2012C127), The Reserve Talents of University Overseas Research Program of Heilongjiang (2012318) and The Scientific and Technological Research General Project of Heilongjiang Provincial Education Department (12521061).
References [1] Xiaofei Fu, Pengyan Wang, Yanfang Lv, Guang Fu, Mian Yang, Qingfen Meng: Geological Science Vol. 42 ( 2) (2007), P. 209-222(In Chinese) [2] Zhiwu Wang, Jiliang Yang, Ruiqi Gao: Petroleum Geology Of China Vol. 2(1993), P. 278-295(In Chinese) [3] Feng Ma, Li Liu, Hua Yan: Global Geology Vol. 22 (4)(2003), P. 331-338(In Chinese) [4] Xiaolan Hu, Tailiang Fan, Xiaolong Zhang, et al: Journal of Jilin University ( Earth Science Edition )Vol. 41 (3)(2011), P. 647-656(In Chinese) [5] Hongge Zhao, Chiyang Liu: Acta Sedimentologica Sinica Vol. 21 (3)(2003), P. 409-415(In Chinese) [6] Xiaoxia Sun, Yong Li, Dongzhou Qiu, et al: Deposition and Tethyan Geology Vol. 26 (3)(2006), P. 61-66(In Chinese) [7] Junxing Zhao, Qiang Lv, Fengjie Li, et al: Acta Sedimentologica Sinica Vol. 26 (4)(2008), P. 610-615(In Chinese)
Acknowledgements This work was financially supported by The Science Foundation for Young Scholars of Heilongjiang Province (QC2012C127), The Reserve Talents of University Overseas Research Program of Heilongjiang (2012318) and The Scientific and Technological Research General Project of Heilongjiang Provincial Education Department (12521061).
References [1] Xiaofei Fu, Pengyan Wang, Yanfang Lv, Guang Fu, Mian Yang, Qingfen Meng: Geological Science Vol. 42 ( 2) (2007), P. 209-222(In Chinese) [2] Zhiwu Wang, Jiliang Yang, Ruiqi Gao: Petroleum Geology Of China Vol. 2(1993), P. 278-295(In Chinese) [3] Feng Ma, Li Liu, Hua Yan: Global Geology Vol. 22 (4)(2003), P. 331-338(In Chinese) [4] Xiaolan Hu, Tailiang Fan, Xiaolong Zhang, et al: Journal of Jilin University ( Earth Science Edition )Vol. 41 (3)(2011), P. 647-656(In Chinese) [5] Hongge Zhao, Chiyang Liu: Acta Sedimentologica Sinica Vol. 21 (3)(2003), P. 409-415(In Chinese) [6] Xiaoxia Sun, Yong Li, Dongzhou Qiu, et al: Deposition and Tethyan Geology Vol. 26 (3)(2006), P. 61-66(In Chinese) [7] Junxing Zhao, Qiang Lv, Fengjie Li, et al: Acta Sedimentologica Sinica Vol. 26 (4)(2008), P. 610-615(In Chinese)
Online since: October 2011
Authors: Xiang Yang Xing, Zeng Wei Liu, Ji Ming Liu
For example, under the earthquake effect the prism of the steel reinforced concrete frame structure produce plane torsion deflection, and also bears the load coming from the vertical load which applied on the beam .under this circumstances, the prism of SRC structures is in the composite state of pressure and torsion, and the most failure of the component caused by pressure and twist combination
Material model and Unit type
Steel and rebar’ constitutive relationship reduced to the ideal elastic-plastic constitutive stress-strain relationship, according to the need of this paper.
Acknowledgements This study is part of the research project “the study of steel reinforced concrete composite structures by the force of torsion” financially supported by the Natural Science Fund of Nation (project No. 51078195).
Limit values of axial compression ratio for steel reinforced concrete columns [J], Northeastern university journal; Natural science edition, 2003, 5 [2] The industry standard of the People's Republic of China .
Study On Restoring Force Model of Lattice Type Steel Reinforced Concrete Columns[J], Structural engineer, 2004,20(6) [4] Hong Tie Zhao, Steel and concrete composite structure, BeiJing: Science Press, 2001.3
Acknowledgements This study is part of the research project “the study of steel reinforced concrete composite structures by the force of torsion” financially supported by the Natural Science Fund of Nation (project No. 51078195).
Limit values of axial compression ratio for steel reinforced concrete columns [J], Northeastern university journal; Natural science edition, 2003, 5 [2] The industry standard of the People's Republic of China .
Study On Restoring Force Model of Lattice Type Steel Reinforced Concrete Columns[J], Structural engineer, 2004,20(6) [4] Hong Tie Zhao, Steel and concrete composite structure, BeiJing: Science Press, 2001.3