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Online since: October 2011
Authors: Hai Rong Gu, Yong Qi Wang, Chang Ming Li
Study on Double-drum Roller Maximum Braking Deceleration
Yongqi Wang1, a, Hairong Gu2, b, Changming Li3, c
1Faculty of Transportation Engineering, Kunming University of Science and Technology, Kunming, China
2Key Laboratory for Highway Construction Technology and Equipment of Ministry of Education, Chang’an University, Xi’an, China
3Department of Petty Officer, Academy of Equipment Command and Technology, Beijing, China
awyq2209@163.com, bguhairong@263.net, cchm_li@hotmail.com
Keywords: Construction machine; Double drum roller; Travel system; Braking deceleration; Dynamics;
Abstract: Reducing start and stop time is important in enhancing productivity of double roller and compact quality of asphalt pavement, but it is difficult in confirming the max braking deceleration or starting acceleration of double-drum roller.
In general, adhere force is less at the beginning for the loose materials, the maximum deceleration of roller is less with no slipping; adhere force is bigger at the ending for the tight materials; the maximum deceleration of roller is bigger with no slipping.
The dynamic process of oscillatory compaction and its response characteristic, China Journal of Highway and Transport, vol.11, Nov.1998, pp. 117-126 [3].
Parameters matching of hydraulic driving system of tandem vibratory roller, Journal of Chang’an University: Natural Science edition, vol.25, May 2009, pp:122-126 [4].
In general, adhere force is less at the beginning for the loose materials, the maximum deceleration of roller is less with no slipping; adhere force is bigger at the ending for the tight materials; the maximum deceleration of roller is bigger with no slipping.
The dynamic process of oscillatory compaction and its response characteristic, China Journal of Highway and Transport, vol.11, Nov.1998, pp. 117-126 [3].
Parameters matching of hydraulic driving system of tandem vibratory roller, Journal of Chang’an University: Natural Science edition, vol.25, May 2009, pp:122-126 [4].
Online since: December 2014
Authors: Ying Ying Fang, Wei Fang Yu, Hui Li, Xiao Ling Zha
Determination of Henry constants of azelnidipine enantiomers on Chiralpak AD column at different temperatures
Yingying Fang1, a, Xiaoling Zha1, a,Hui Li1,a and Weifang Yu1,b ,*
1 College of Chemical and Materials Engineering, Wenzhou University, Wenzhou , Zhe Jiang, China
afyy5252@163.com, bywf@wzu.edu.cn
Keywords: azelnidipine enantiomers chromatographic separation Henry constants
Abstract.
Chemicals and materials HPLC grade n-hexane (>95%)were purchased from Sigma-Aldrich (St.Louis,USA).
Acknowledgements Thanks for the National Natural Science Foundation of China (grant NO.21106108) provide financial assistance.
International Journal of Biomedical Science, 2006, 2(2): 85-100
Journal of Chromatography A, 2013,1273: 49-56
Chemicals and materials HPLC grade n-hexane (>95%)were purchased from Sigma-Aldrich (St.Louis,USA).
Acknowledgements Thanks for the National Natural Science Foundation of China (grant NO.21106108) provide financial assistance.
International Journal of Biomedical Science, 2006, 2(2): 85-100
Journal of Chromatography A, 2013,1273: 49-56
Online since: April 2014
Authors: Xiao Bo Yu, Xiao Fei Li, Rui Sun
ABAQUS contains an abundant material library and an element library, which can construct varies complex models.
The material constitutive model should consider the decrease of shear modulus and the increase of damping ratio.
The parameters of the material keep constant during calculation.
The element size in Abqus is 1×1m, which can be seen in figure 1.The parameters of the material in ABAQUS are listed in table 1, parameters of SHAKE91 are listed in table 2.
Acknowledgements This research is supported by the Seismic Industry Funds of National Ministry of Science and Technology (201308015), the National Natural Science Fund (51278472), and the Specific Item of Fundamental Scientific Research in Central Level Nonprofit Research Institute (2013B03).
The material constitutive model should consider the decrease of shear modulus and the increase of damping ratio.
The parameters of the material keep constant during calculation.
The element size in Abqus is 1×1m, which can be seen in figure 1.The parameters of the material in ABAQUS are listed in table 1, parameters of SHAKE91 are listed in table 2.
Acknowledgements This research is supported by the Seismic Industry Funds of National Ministry of Science and Technology (201308015), the National Natural Science Fund (51278472), and the Specific Item of Fundamental Scientific Research in Central Level Nonprofit Research Institute (2013B03).
Online since: August 2011
Authors: Han Bin Liu, Han Ming Cai, Ting Ting Xing
Application of Genetic Algorithm on the Layout of Rectangular
HanMing Cai1, a, HanBin Liu2,b,TingTing Xing3,c
Qingdao University of Science & Technology Qingdao, Shandong Province, China
cnjatgmyy@163.com,
Keywords: Layout of Rectangle; Genetic algorithm; Crossover operator; Mutation operator;
Abstract: This article adopts genetic algorithm to solve the problem of guillotine rectangular stock cutting, and designs a new crossover operator and mutation operator towards the specifical problem, finally gives an example to prove this new genetic algorithm is effective to solve the rectangular cutting problem.
Introduction With the development of society and technology, increasing productivity, expanding the scale of production, the growing demand for raw materials, which lead to a higher and higher price, how to reduce the price and improving the rapid growth of profits of individual enterprises in today's society is the most severe requirements, the maximum material savings, improving the material utilization is the most effective way.
Two-dimensional guillotine rectangular stock cutting optimization with predetermined in-depth search steps [ J ].Journal of Computer-Aided Design and Computer Graphics, 6, 4.(1994),p.313—31 6
Application of Simulated Annealing to the Rectangular Packing Problem[J]].Journal of Sichuan University: Engineering Science Edition ,2001(5),p.32—34.
Introduction With the development of society and technology, increasing productivity, expanding the scale of production, the growing demand for raw materials, which lead to a higher and higher price, how to reduce the price and improving the rapid growth of profits of individual enterprises in today's society is the most severe requirements, the maximum material savings, improving the material utilization is the most effective way.
Two-dimensional guillotine rectangular stock cutting optimization with predetermined in-depth search steps [ J ].Journal of Computer-Aided Design and Computer Graphics, 6, 4.(1994),p.313—31 6
Application of Simulated Annealing to the Rectangular Packing Problem[J]].Journal of Sichuan University: Engineering Science Edition ,2001(5),p.32—34.
Online since: September 2019
Authors: Julija S. Karzina, Maiwand Hootak, Maxim Yu. Zamozdra
In particular, aluminum foam is one of the most promising and common materials on the market among foamed systems.
Because of this, such materials can not serve as a full-fledged structural material, even while being a component of composite sandwich panels.
In particular, methods of hardening materials with single-walled carbon nanotubes (CNTs) are being actively developed [6, 7].
[5] Kotov S.A., Andreeva V.D., Ganin S.V., Freidin B.M., Kuz'Mich Yu.V., «Effect of heat treatment on the properties of mechanically alloyed Al-based materials», Metal Science and Heat Treatment, Volume 49, 2007, рр. 574-577
[9] Mudimela, P.R., Nasibulina, L.I., Nasibulin, A.G., Cwirzen, A., Valkeapää, M., Habermehl-Cwirzen, K., Malm, J.E.M., Karppinen, M.J., Penttala, V., Koltsova, T.S., Tolochko, O.V., Kauppinen, E.I., «Synthesis of carbon nanotubes and nanofibers on silica and cement matrix materials», Journal of Nanomaterials, Volume 2009, 2009, № 526128
Because of this, such materials can not serve as a full-fledged structural material, even while being a component of composite sandwich panels.
In particular, methods of hardening materials with single-walled carbon nanotubes (CNTs) are being actively developed [6, 7].
[5] Kotov S.A., Andreeva V.D., Ganin S.V., Freidin B.M., Kuz'Mich Yu.V., «Effect of heat treatment on the properties of mechanically alloyed Al-based materials», Metal Science and Heat Treatment, Volume 49, 2007, рр. 574-577
[9] Mudimela, P.R., Nasibulina, L.I., Nasibulin, A.G., Cwirzen, A., Valkeapää, M., Habermehl-Cwirzen, K., Malm, J.E.M., Karppinen, M.J., Penttala, V., Koltsova, T.S., Tolochko, O.V., Kauppinen, E.I., «Synthesis of carbon nanotubes and nanofibers on silica and cement matrix materials», Journal of Nanomaterials, Volume 2009, 2009, № 526128
Online since: August 2014
Authors: Alain Lodini, Bjørn Clausen, Matthieu Dubois, Don Brown, Ahmed Addad
The material follows a law of pseudo elastic behavior.
Shape Memory Alloys belong to the class of smart materials able to return into their original shape by heating after having been deformed at low temperature.
Guenin, Mechanics of Materials, Volume 8, Issues 5-6, May-June 2006, Pages 391-429
Hsu, Materials Science and Engineering: A, Volume 430, Issues 1–2, 25 August 2006, Pages 292–300
Journal de Physique IV 1 (9), C4-259-263
Shape Memory Alloys belong to the class of smart materials able to return into their original shape by heating after having been deformed at low temperature.
Guenin, Mechanics of Materials, Volume 8, Issues 5-6, May-June 2006, Pages 391-429
Hsu, Materials Science and Engineering: A, Volume 430, Issues 1–2, 25 August 2006, Pages 292–300
Journal de Physique IV 1 (9), C4-259-263
Online since: August 2013
Authors: Ali Abuelnuor Abdeen Abuelnuor, Mazlan Abdul Wahid, Aminuddin Saat, Mohamed Osman Abdalla, Seyed Ehsan Hosseini, Mohsin M. Sies, Ahmed G. Dairobi, Amer Nordin Darus, H.A. Mohammed
In addition, a smaller size of furnace for flameless combustion to performing the same function means savings in materials and resources comparing with convectional combustion [4, 9-11].
Hasegawa, The science and technology of combustion in highly preheated air, 1998, pp. 3135-3146
Cavaliere and M. de Joannon, Mild combustion, Progress in Energy and Combustion Science, vol. 30, pp. 329-366, 2004
Wunning, Flameless oxidation to reduce thermal NO-formation, Progress in Energy and Combustion Science, vol. 23, pp. 81-94, 1997
Rafidi, et al., High-Temperature Air Combustion Phenomena and Its Thermodynamics, Journal of Engineering for Gas Turbines and Power, vol. 130, p. 023001, 2008
Hasegawa, The science and technology of combustion in highly preheated air, 1998, pp. 3135-3146
Cavaliere and M. de Joannon, Mild combustion, Progress in Energy and Combustion Science, vol. 30, pp. 329-366, 2004
Wunning, Flameless oxidation to reduce thermal NO-formation, Progress in Energy and Combustion Science, vol. 23, pp. 81-94, 1997
Rafidi, et al., High-Temperature Air Combustion Phenomena and Its Thermodynamics, Journal of Engineering for Gas Turbines and Power, vol. 130, p. 023001, 2008
Online since: August 2011
Authors: Gai Pin Cai, Ning Yuan Zhu, Rong Hai Zhang
There are elastic strain and inelastic strain in the strain of constitutive model[5].And the total strain of visco-elasticity plasticity material can be given by[6]
(5)
Where,is total strain of material,is the strain of visco-elasticity,is the strain of visco-plasticity.
[2] Qingkai Han.Chinese Journal of Mechanical Engineering,2001,5(5): 594~597(In Chinese)
Materials Science Engineering,1984-1985, 68: 197 ~ 206
[4] Guangquan Zhou.Visco-elasticity theory.Hefei:The University of Chinese Science Technique Press,1996.12:12~14(In Chinese)
[7] Jiansheng Zhou.Journal of Harbin Engineering University, 2008.4(29):354~358(In Chinese)
[2] Qingkai Han.Chinese Journal of Mechanical Engineering,2001,5(5): 594~597(In Chinese)
Materials Science Engineering,1984-1985, 68: 197 ~ 206
[4] Guangquan Zhou.Visco-elasticity theory.Hefei:The University of Chinese Science Technique Press,1996.12:12~14(In Chinese)
[7] Jiansheng Zhou.Journal of Harbin Engineering University, 2008.4(29):354~358(In Chinese)
Online since: May 2012
Authors: Yue Ping Yang, Shi Jiao Yang, Qiu Sheng Huang
Mining Ecological Safety Problems
Mineral resources are the important material base of human society development.
The rapid development and utilization of mineral resources has provided the important material guarantee for social economy fast and steady development.
In addition, the reputation of "the home of non-ferrous metals" also only means the supply of raw materials, and don’t combined non-ferrous metal advantages with metallurgy, materials of industry development.
Acknowledgements This work was financially supported by the construct program of the key discipline in hunan province, National Safe Production Science and Technology Development Programme(08-198) and Hengyang Social Science Foundation Project(2011C004).
References [1] Mouchang Yu: submitted to Journal of Tsinghua University(Philosophy and Social Sciences) 2004.19(2):29-35 [2] Yanbin Wu,Suping Peng, Yijin and Liping Yan: submitted to China Mining Magazine2006.15(4):26-29+36 [3] Lijie Zhuo, Kaixuan Tan: submitted to Journal of University of South China(Science and Technology), 2009.23(2): 26-31 [4] Information on http://www.hengyang.gov.cn [5] Chuanhao Wen, Xiaoyong Wen and Bingcan CHen: submitted to the Ideological Front2000(06) : 48-52 [6] Commentator: submitted to Land & Resources 2007(3):59
The rapid development and utilization of mineral resources has provided the important material guarantee for social economy fast and steady development.
In addition, the reputation of "the home of non-ferrous metals" also only means the supply of raw materials, and don’t combined non-ferrous metal advantages with metallurgy, materials of industry development.
Acknowledgements This work was financially supported by the construct program of the key discipline in hunan province, National Safe Production Science and Technology Development Programme(08-198) and Hengyang Social Science Foundation Project(2011C004).
References [1] Mouchang Yu: submitted to Journal of Tsinghua University(Philosophy and Social Sciences) 2004.19(2):29-35 [2] Yanbin Wu,Suping Peng, Yijin and Liping Yan: submitted to China Mining Magazine2006.15(4):26-29+36 [3] Lijie Zhuo, Kaixuan Tan: submitted to Journal of University of South China(Science and Technology), 2009.23(2): 26-31 [4] Information on http://www.hengyang.gov.cn [5] Chuanhao Wen, Xiaoyong Wen and Bingcan CHen: submitted to the Ideological Front2000(06) : 48-52 [6] Commentator: submitted to Land & Resources 2007(3):59
Online since: April 2009
Out of these, 76 invited
papers were published in a special issue of Journal of Magnetism and Magnetic Materials.
The successful MISM Symposium was made possible by generous financial support provided by the following sponsors which are gratefully acknowledged: Moscow State University, Russian Foundation for Basic Research, Dynasty Foundation (Moscow), Institute for Theoretical and Applied Electromagnetics of Russian Academy of Sciences (ITAE RAS), European Physical Society, 147th Committee of Japanese Society for Promotion of Science, Kapitza Institute for Physical Problems, NT-MDT Nanotechnology.
The successful MISM Symposium was made possible by generous financial support provided by the following sponsors which are gratefully acknowledged: Moscow State University, Russian Foundation for Basic Research, Dynasty Foundation (Moscow), Institute for Theoretical and Applied Electromagnetics of Russian Academy of Sciences (ITAE RAS), European Physical Society, 147th Committee of Japanese Society for Promotion of Science, Kapitza Institute for Physical Problems, NT-MDT Nanotechnology.