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Online since: August 2015
Authors: Oleg Naimark
Statistically based approach was developed for the constitutive modeling of materials to provide links between defect induced mechanisms of structural relaxation, damage-failure transition and material responses in wide range of load intensities.
Original experimental data supported the assumption concerning the role of multiscale blow-up collective modes of defects on self-similar responses of materials in wide range of load intensity. 1.
Kinetic equations (Eq.2) and the equation for the total deformation ( is the component of the elastic compliance tensor) represent the constitutive equations of materials with mesodefects.
Acknowledgments: Research was supported by the project n.14-19-01173 of the Russian Science Foundation.
Failure wave as resonance excitation of collective burst modes of defects in shocked brittle materials, J.
Original experimental data supported the assumption concerning the role of multiscale blow-up collective modes of defects on self-similar responses of materials in wide range of load intensity. 1.
Kinetic equations (Eq.2) and the equation for the total deformation ( is the component of the elastic compliance tensor) represent the constitutive equations of materials with mesodefects.
Acknowledgments: Research was supported by the project n.14-19-01173 of the Russian Science Foundation.
Failure wave as resonance excitation of collective burst modes of defects in shocked brittle materials, J.
Online since: January 2014
Authors: Qiang Zou, Yong Gang Ge, Jian Qiang Zhang, Xiao Jun Guo
Acknowledgements
This work was jointly financially supported by the Key Research Program of the Chinese Academy of Sciences(KZZD-EW-05-01)and the Key Program of National Natural Science Found of China(41030742).
Characteristics and countermeasures of debris flow in Wenchuan area after the Earthquake, Journal of Sichuan University (Engineering Science Edition) 42(5) (2010), pp. 10-19
Debris Flow and Its Characteristics of Subao River in Beichuan County after 5.12 Wenchuan Earthquake, Journal of Mountain Science 28(3) (2010), pp.358-366
Journal of Hydraulic Engineering, 43(Supp.2) (2012), pp. 147-154
Journal of Catastrophology 27(3) (2012), pp.81~85.
Characteristics and countermeasures of debris flow in Wenchuan area after the Earthquake, Journal of Sichuan University (Engineering Science Edition) 42(5) (2010), pp. 10-19
Debris Flow and Its Characteristics of Subao River in Beichuan County after 5.12 Wenchuan Earthquake, Journal of Mountain Science 28(3) (2010), pp.358-366
Journal of Hydraulic Engineering, 43(Supp.2) (2012), pp. 147-154
Journal of Catastrophology 27(3) (2012), pp.81~85.
Online since: October 2012
Authors: Bin Yu Sun, Tian Hu Zheng, Chun Yuan Xv
Design of a New Type Casting Rolling Mill Screw Down System
Chunyuan Xv1, a, Binyu Sun1, b and Tianhu Zheng1, c
1College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China
E-mail: bsunby_ty@yahoo.com.cn,axv_yuan3@126.com, czhengtianhu8@163.com
Keywords: Double Precision Pressure, Interference-free, Synchronization Trimming, Compound Nut
Abstract.
Acknowledgements This article by the Shanxi Natural Science Foundation of China (2006011060), by Dr. foundation of Taiyuan university of science and technology(20082013),by excellent graduate innovation project of Shanxi province(20081092), by Taiyuan innovation and pioneering project in 2010 students(100115163), Teaching and research project of Taiyuan University of Science and Technology(2010xjy31), Science and technology projects in Taiyuan (2012-3-PT-G-122)support.
Bao: Journal of Northeastern University, Vol.21 (2000) No.3, p.274
Acknowledgements This article by the Shanxi Natural Science Foundation of China (2006011060), by Dr. foundation of Taiyuan university of science and technology(20082013),by excellent graduate innovation project of Shanxi province(20081092), by Taiyuan innovation and pioneering project in 2010 students(100115163), Teaching and research project of Taiyuan University of Science and Technology(2010xjy31), Science and technology projects in Taiyuan (2012-3-PT-G-122)support.
Bao: Journal of Northeastern University, Vol.21 (2000) No.3, p.274
Online since: September 2011
Authors: Li Ping Du, Dong Guang Xiao, Li Li Guo, Wei Dong Gai, Rui Xue Hao
Research on the Characteristics and Culture Conditions of Saccharomyces boulardii 1
Liping Du1 ,Ruixue Hao1,Dongguang Xiao2, Lili Guo2,Weidong Gai2
1Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Industrial Microbiology Key Laboratory, College of Biotechnology Tianjin University of Science and Technology
Tianjin University of Science and Technology,Tianjin 300457, P.
China 2Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Industrial Microbiology Key Laboratory, College of Biotechnology Tianjin University of Science and Technology Tianjin University of Science and Technology,Tianjin 300457, P.
Materials and Methods A.Strains S.boulardii (Tianjin University of Science and Tech- nology Culture Collection).
Shanghai: Shanghai Science and Technology Press, 1986
Australian Journal of Agricutural Research, 1986, 37(1): 55
China 2Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Industrial Microbiology Key Laboratory, College of Biotechnology Tianjin University of Science and Technology Tianjin University of Science and Technology,Tianjin 300457, P.
Materials and Methods A.Strains S.boulardii (Tianjin University of Science and Tech- nology Culture Collection).
Shanghai: Shanghai Science and Technology Press, 1986
Australian Journal of Agricutural Research, 1986, 37(1): 55
Online since: February 2014
Authors: Cui Ling Jiang, Xiu Quan Zhu, Dong Mei Li, Peng Zhang, Li Qin Zhu
Materials and methods
2.1 Sites description.
Jin, Eutrophication of lakes in China, China Environmental Science Press, Beijing. (1990) 20-30.
Yu, Discussion about Methods of Assessment for Water Entrophication, Journal of University of Science and Technology of Suzhou (Engineering and Technology) 2(2005) 56-60.
Likens, Ecology Controlling Eutrophication: Nitrogen and Phosphorus, Science 323 (2009) 1014-1015
Schindler, Eutrophication science: where do we go from here?
Jin, Eutrophication of lakes in China, China Environmental Science Press, Beijing. (1990) 20-30.
Yu, Discussion about Methods of Assessment for Water Entrophication, Journal of University of Science and Technology of Suzhou (Engineering and Technology) 2(2005) 56-60.
Likens, Ecology Controlling Eutrophication: Nitrogen and Phosphorus, Science 323 (2009) 1014-1015
Schindler, Eutrophication science: where do we go from here?
Online since: December 2010
Authors: Guang Cheng Long, Kun Lin Ma, You Jun Xie
Though the transport characteristics of cementitious materials has been reported by many researchers[3,6~8].
And thus the repair materials system is confronted with serious durability problem.
Experimental details Raw materials Old concrete sample was cored from existed structure with 400 days old in-situ.
Emmons: Construction and Building Materials, Vol.14(2000), pp189-197 [3] Lulu Basheer et al.
:Construction and Building Materials, Vol. 15 (2001), pp93-103 [4] Vincent Picandet , Abdelhad Khelidj , Herve Bellegou: Cement and Concrete Research, Vol. 39(2009), pp537-547 [5] MeghdadHoseini ,Vivek Bindiganavile, Nemkumar Banthia: Cement and ConcreteComposites, Vol. 31(2009), pp213-220 [6] D.A Lockington, J.Y.Parlange, P.Dux: Materials and Structures, Vol. 32(1999), pp342-347 [7] D.A.Lockington,J.Y.Parlange: Journal of Physics, Vol. 36(2003), pp760-767 [8] L.Hanzic, R.Ilic: Cement and Concrete Research, Vol. 33(2003), pp1385-1388 [9] D.R.
And thus the repair materials system is confronted with serious durability problem.
Experimental details Raw materials Old concrete sample was cored from existed structure with 400 days old in-situ.
Emmons: Construction and Building Materials, Vol.14(2000), pp189-197 [3] Lulu Basheer et al.
:Construction and Building Materials, Vol. 15 (2001), pp93-103 [4] Vincent Picandet , Abdelhad Khelidj , Herve Bellegou: Cement and Concrete Research, Vol. 39(2009), pp537-547 [5] MeghdadHoseini ,Vivek Bindiganavile, Nemkumar Banthia: Cement and ConcreteComposites, Vol. 31(2009), pp213-220 [6] D.A Lockington, J.Y.Parlange, P.Dux: Materials and Structures, Vol. 32(1999), pp342-347 [7] D.A.Lockington,J.Y.Parlange: Journal of Physics, Vol. 36(2003), pp760-767 [8] L.Hanzic, R.Ilic: Cement and Concrete Research, Vol. 33(2003), pp1385-1388 [9] D.R.
Online since: November 2012
Authors: Zhao Jun Li, Jian Yang, Wang Yang
The cassava root could be considered as isotropic material, and the stem could be considered as anisotropy material[8].
The root material parameters are as follow: density is 1036kg/m3, elastic modulus is 7.23×106Pa ,and poisson ratio is 0.3.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (No. 51065003).
Zhang: Journal of Agricultural Mechanization Research Vol. 1(2011),p. 28-31.
Huang: Journal of Agricultural Mechanization Research Vol. 8(2011),p. 119-122.
The root material parameters are as follow: density is 1036kg/m3, elastic modulus is 7.23×106Pa ,and poisson ratio is 0.3.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (No. 51065003).
Zhang: Journal of Agricultural Mechanization Research Vol. 1(2011),p. 28-31.
Huang: Journal of Agricultural Mechanization Research Vol. 8(2011),p. 119-122.
Online since: December 2010
Authors: Jian Jie Zhang, Wen Lei Sun, Lei Lei Ma
Carries on the planetary transmission dynamics analysis using the finite element
Based on elastic theory, in order to simplify the solution of the problem, the establishment of a finite element model,the following assumptions were done: first gear materials isotropic; second gear materials is a continuous, uniform; three is ignored when the gear tooth surface friction on[2].
2.1 Create geometric model
Gear parameter as shown in Table 2-1, planetary transmission full-scale mockup as shown in Figure 2-1.
(a)Sun gear and planetary gear (Part 1) contact stress cloud chart /Pa (b)Sun gear and planetary gear (left) contact stress cloud chart /Pa (c) The Sun gear and planets round (right) contact stress contour/Pa Figure 2-5 the gear contact stress diagram 2.2.1 Definition unit type and material performance parameter Select the gear materials for 45 steel (conditioning), elastic modulus, Poisson ratio u = 0.27.
Shenyang Industrial university journal, 2009,19[10]:31-33.
Vibration Engineering Journal, 2008,13[10]:20-22.Chief Editor.In Chinese [14]Yang Xiao Yu.Gear drive systems dynamics characteristic finite element analysis and testing method research.
Chinese Academy of Science, 2007.
(a)Sun gear and planetary gear (Part 1) contact stress cloud chart /Pa (b)Sun gear and planetary gear (left) contact stress cloud chart /Pa (c) The Sun gear and planets round (right) contact stress contour/Pa Figure 2-5 the gear contact stress diagram 2.2.1 Definition unit type and material performance parameter Select the gear materials for 45 steel (conditioning), elastic modulus, Poisson ratio u = 0.27.
Shenyang Industrial university journal, 2009,19[10]:31-33.
Vibration Engineering Journal, 2008,13[10]:20-22.Chief Editor.In Chinese [14]Yang Xiao Yu.Gear drive systems dynamics characteristic finite element analysis and testing method research.
Chinese Academy of Science, 2007.
Online since: June 2008
Authors: Wei Hua Zhang, Bing Rong Miao, Ding Chang Jin, Yong Xiang Zhao, Shou Ne Xiao
The same accuracy requirement
applies to material properties.
All methods rely on the material properties derived from experiments or material design criterion.
In the simplest case, fatigue properties for a smooth parent material subjected to fully reversed loading are available.
Carbody structure is subjected to random loading, which can be very difficult to correlate to constant amplitude material properties.
Acknowledgment This research was supported by National Basic Research Program of China 973 Program (2007CB714705) and National 863 program (2006AA04Z406), National Science Foundation of China (No.50525518).
All methods rely on the material properties derived from experiments or material design criterion.
In the simplest case, fatigue properties for a smooth parent material subjected to fully reversed loading are available.
Carbody structure is subjected to random loading, which can be very difficult to correlate to constant amplitude material properties.
Acknowledgment This research was supported by National Basic Research Program of China 973 Program (2007CB714705) and National 863 program (2006AA04Z406), National Science Foundation of China (No.50525518).
Online since: October 2010
Authors: Wang Yu Liu, Yong Zhang
It is found that
flap-twist coupling effect is only related to the laminated materials, not sensitive to the geometry
shape.
Based on the previous study [5], the bend-twist coupling parameter is analyzed first in this paper, then the coupling effect is proved to be only related to the laminated materials by carrying out the spar cap of bend-twist coupling design.
The reason is that the transverse modulus of carbon fiber is similar to that of the glass fiber, there is no much difference in twist stiffness between two materials.
Zhang: Advanced Materials Research, Vol. 97-101 (2010), pp.3318- 2323
Wetzel: Journal of Solar Energy Engineering, Vol. 127 (2005) No.4, pp.529-537
Based on the previous study [5], the bend-twist coupling parameter is analyzed first in this paper, then the coupling effect is proved to be only related to the laminated materials by carrying out the spar cap of bend-twist coupling design.
The reason is that the transverse modulus of carbon fiber is similar to that of the glass fiber, there is no much difference in twist stiffness between two materials.
Zhang: Advanced Materials Research, Vol. 97-101 (2010), pp.3318- 2323
Wetzel: Journal of Solar Energy Engineering, Vol. 127 (2005) No.4, pp.529-537