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Online since: January 2015
Authors: Qiu Lin Liao, Shou Yun Shen, Gen Li
Journal of Central South University of Forestry & Technology,2011,31(1):91-97. ,[]Chen yonghua, Wu xiaofu, Hao jun.
Chinese Journal of Environmental Engineering,2011,5(11):2453-2458. ,[]Luo Bijun, Fan Zaiyi, Chen Lina.
Numerical Simulation on Hydrodynamic Character for Algae Growth [J].Environmental Science, 2008, 29(4):886-888. ,[]Zhang Yimin, Zhang Yngchun, Zhang Longjiang.
China Environmental Science, 2007, 27(5): 707-711. ,[]Wang Lili.
Shanghai science and Technology Press, 1980: 392-394. ,[]Yuan wenlin, Zhang Weijia, Huang Yong.
Online since: November 2017
Authors: Corrado Piconi
Materials Applications Oxides Alumina Ball heads and inserts for THR bearings.
Selected behavior of bioinert ceramic materials.
[7] M.Vila, Carbon-based Materials in Biomedicine, in: M.
Hashmi (Editor-in-chief), Reference Module in Materials Science and Materials Engineering, Elsevier, Oxford, 2016, pp. 1-8
Sandri, New materials for dental implantology, Key Eng Mater 750(2017)189-194
Online since: January 2012
Authors: Hong Kai Chen, Xiao Ying He, Hong Mei Tang, Ying Zhong
Assuming that unsaturated debris flow deposit is isotropic linear elastic material, the constitutive equation 6, 7 is shown in Eq 2
Acknowledgements This work was financially supported by the National natural science foundation (41071017).
H., Study on the sedimentation rule of the particles in debris flow, Journal of Chongqing Jianzhu University, Vol.29(2007),p. 100-103 [2] Gentile F., Bisantino T. and Trisoria L.G., Debris-flow risk analysis in south Gargano water sheds (Southern Italy),Nat Hazards, Vol.441 (2008) p. 1-17 [3] Bagnold R.A., Experiments on a gravity-free dispersion of large solid spheres in a Newtonian fluid under shear, Proc Royal Soc London Series A, Vol.225 (1954) ,p. 49–63 [4] Major J.J., Gravity consolidation of granular slurries: Implications for debris flow deposition and deposit characteristics, Journal of Sediment Research, Vol.70, (2000),p. 841-857 [5] Chen H.K., Tang H.M., Ma Y.T. and Wu S.F., Study on highway debris flow and treatment, The China Communications Press, Beijing(2004) [6] Qin A.F., Sun D.A., Tan Y.W., Semi-analytical solution to one-dimensional consolidation in unsaturated soils, Applied Mathematics and Mechanics, Vol. 2(2010),p. 199-208 [7] Li X.S., Thermodynamics-based
constitutive framework for unsaturated soils, Geotechnique, Vol.57(2007) ,p. 411-422 [8] Sheng J.S., Ting W. and Qing G.Y., Equivalent Consolidation Deformation Properties and One-Dimensional Analysis Method of Unsaturated Soils, Chinese Journal of Geotechnical Engineering, Vol. 7(2009),p. 1037-1045 [9] Wang L.Z., Dan H.B., Elastic viscoplastic constitutive model for K0-consolidated soft clays, Journal of Geotechnical Engineering, Vol.29(2007),p. 1344-1354 [10] Hichberger S.D. and Rowe R.K., Evaluation of the predictive ability of two Elastic-viscoplastic constitutive models, Canadian Geotechnical Jouma1, Vol.42(2005), p. 1675-1694 [11] Xie X.Y., Zhang J.F., and Zeng G.X., Similarity Solution of Self-Weight Consolidation Problem for Saturated Soil, Applied Mathematics and Mechanics, Vol.26(2005), p. 1061-1066 [12] Pan E., Green's functions in layered poraelastic half 2 spaces, In.J.Numer.
Online since: July 2014
Authors: You Song Sun, Hong Bo Zheng
Research on Pump-controlled Servo Hydraulic Press and Its Energy Consumption Experiments Hongbo Zheng 1, a, Yousong Sun 1, b 1Faculty of Mechanical and Electronic Engineering, Guangdong Institute of Science and Technology, Zhuhai, China 2Faculty of Materials and Energy, Guangdong University of Technology, Guangzhou, China abohongzheng@126.com, byssun@gdut.edu.cn Key words: pump-controlled; hydraulic press; servo motor; energy consumption Abstract: A solution was proposed to reform the traditional hydraulic presses by the technology of pump-controlled servo hydraulic power: PMSM(Permanent magnet synchronous servo motor ) and fixed displacement pump replaced the traditional inductive motor and fixed displacement pump as the power unit ; the electromagnetic reversing system, the rapid cylinder and the prefill system were kept; displacement sensors, pressure sensors and a proportional relief valve were added to the hydraulic system.
Journal of Northwestern Polytechnical University, 2004.22(3):355-358. ]
With the declining of the price of rare-earth permanent magnet materials, the price of PMSM becomes lower too, reforming the traditional hydraulic press driven by asynchronous motor with PMSM can realize the optimization of working process as well as save energy, the long-standing technical difficulty for the traditional hydraulic press can be solved, it is significant for the developing of forming equipments.
Online since: September 2011
Authors: Bin Tian, Xiao Chun Lu
The different grade of concrete material is used in the different arch dam project.
The height of an arch dam is higher, the grade of concrete material of the dam is larger, and the corresponding strength of the dam concrete is larger.
The Ren Qingwen curve illustrated in Figure 1 is corresponding to the 10 MPa of the allowable pressure stress of dam concrete material.
On the opinion, the fractural curve of cracking potential assessing for an arch dam was determined through factors of height of the dam, width of the valley, the tensile strength of dam concrete material.
Journal of Hehai University(Natural Sciences), 2003(1):1~4(In Chinese) [7] Qingwen Ren, Baile Wang.
Online since: December 2014
Authors: Dominika Jurovata, Lukas Hrcka, Julia Kurnatova, Pavel Važan
Input Control in Production System by Simulation Optimization Dominika Jurovata1, a, Pavel Vazan1, b Lukas Hrcka 1, c and Julia Kurnatova1, d 1 Institute of Applied Informatics, Automation and Mathematics, Faculty of Material Science and Technology in Trnava, Slovak University of Technology in Bratislava a dominika.jurovata@stuba.sk, b pavel.vazan@stuba.sk, c lukas.hrcka@stuba.sk, d julia.kurnatova@stuba.sk Keywords: simulation optimization, production system, simulator Witness, input control.
The material flow is defined for every product individually.
Each product in material flow is passed to the next operation in whole batches, so transfer batching is realized in calculated lot size.
If the system structure and parameters (e.g. cycle times, setup times, material flow orientation and so on) were changed, the process of optimization would have to be repeated.
Gerchak, Input control in a batch production system with lead times, due dates and random yields, European Journal of Operational Research, Volume 126, Issue 2 (2000) 371–385, ISSN: 0377-2217
Online since: January 2011
Authors: Zhi Hui Huang, Liang Wen Yan, Jun Li, Qi Hong Chen, Shu Lin Kan
We are urgently needed to enhance special material processing product safety, quality, reliability and operation efficiency; improve profitability and competitiveness; and achieve our business objectives.
Seamless Steel Cylinder Material Cutting Examination Record items: Cutting method / cutting dimension, Coded marking & marking transferring, Inside wall quality.
It may recommend action to correct the problem, including correlating the symptom, actions and results to determine the cause. (3)Unable using MES create a new storing producing data, material data, equipment data, quality data and so on.
Journal of manufacturing systems. 26(2) (2007),p:75-84
Beijing:Military Criterion Press of Commission of Science Technology and Industry for National Defense, (1992).
Online since: January 2013
Authors: Xu Xu Chen, Zhi Ji Song, Chong Jiong Chen
However, the latter filter also adopted a filter cloth as filter media, so penetrating filtering of fine powder was serious, at the same time, back and forth transportation was needed from filtering to washing processes, so losses of manpower and electric power was increased and materials loss was also increased [1].
Filter media is micropores PE and PA based on high molecular polyethylene as main raw materials, which have following technological indices [5]: (1) Micropore size: average pore diameter of undercurrent capillary channels is between 2 and 140
Currently, this technology won a number of national patents, at the same time has a project plan approval of SME Technology Innovation Fund of Ministry of Science and Technology with research fund of 0.6 million.
Journal of Engineering Design, 2012(1): 67-70+80
Online since: August 2014
Authors: Jana Daňková
This manner of structure arrangement enables multiple increases in parameters of system load-carrying capacity and at the same time a significant reduction of the built-in material volume [2].
The strength of the glued-in connection is theoretically determined by the strength of the glued material.
Fig. 2: Idealized loading diagram – the shift for TYPE A-1 samples Fig. 3: Idealized loading diagram – the shift for TYPE A-2 samples Acknowledgements This paper was supported from financial funds of the Conceptual development of science, research and innovations, allocated to VSB – TU Ostrava by the Ministry of Education, Youth and Sport in the Czech Republic.
Materials and structures, 2008, 41.9: 1533-1550
Journal of structural engineering, 2009, 136.1: 46-55
Online since: October 2010
Authors: Zhong Yi He, Li Ping Xiong, Huan Xu, Tao Li, Jian Wei Qiu, Xi Sheng Fu
Tribological and oxidation properties study of a kind of sodium sulfonate-modified nano carbonate sodium He Zhongyi1,2 a,Xiong Liping1b,Xu Huan1,Li Tao2,Qiu Jianwei2,Fu Xisheng2 1)School of Basic Science, East China Jiaotong University, Nanchang, PR China 2)PetroChina Lanzhou Lubricating Oil R & D Institute, Lanzhou, PR China aemail:zhongyihe@yahoo.com.cn; bemail:zhyhe@ecjtu.jx.cn Key words: alkali metal sulfonate; nano carbonate sodium; tribological property; antioxidant Abstract: The tribological properties of a high base value sodium sulfonate-modified nano carbonate sodium as lubricating oil additive were introduced in this paper, and its antioxidant collaboration property with ashless antioxidant was evaluation by using pressure differential scanning calorimetry(PDSC).
To study tribological property of sodium sulfonate which containing nano carbonate sodium applied as extreme pressure additive, and it’s antioxidant synergistic effect with antioxidant T531, alkyl benzene sulfonic acid was used as raw material to obtain high base value sodium sulfonate, and it’s tribological property was evaluated by using a four-ball machine in hydrogenation oil, its antioxidant property with T531(N-phenyl-α-naphthylamine) was also discussed in this paper.
Acknowledgement:The research project was supported by Jiangxi Provincial Science and Technology Department Projects of China (No:2009BGB00600); Jiangxi Education Department Foundation of China (Grant No: GJJ10442) and Doctor Foundation of Eastchina Jiaotong University of China.
Lubrication Science, Vol. 8 (1996), p. 269-274
Journal of Analytical Science(In Chinese), Vol. 24 (2008), p. 189-192 [6] Liping Sheng, Fenfang Li and Chengkai Fan.
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