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Online since: December 2014
Authors: Bi Hua Zhou, Ya Peng Fu, Xin Bo Qu, Li Juan Yang, Nan Zhang
., Nanjing, China
2 Nanjing Telecommunication Technology Research Institute of CESEC, Nanjing, China
3 Qingdao University of Science and Technology, Qingdao, China
4 Changchun University of Technology, Changchun, China
aquxbo@163.com, bzhoubihua@163.com, cfuyapeng312@163.com, dyeziylj@163.com, ezhnjiayou26@163.com
Key words: Portable Grounding System, FDTD, TGR, Time-domain.
Acknowledgements The work was supported in part by the Natural Science Foundations of China under grant No.61271106 and No.51277182.
“Grounding Pit Optimization Using Low Resistivity Materials for Applications in High Resistivity Soils”.
International Journal of Emerging Electric Power System.
Acknowledgements The work was supported in part by the Natural Science Foundations of China under grant No.61271106 and No.51277182.
“Grounding Pit Optimization Using Low Resistivity Materials for Applications in High Resistivity Soils”.
International Journal of Emerging Electric Power System.
Online since: October 2013
Authors: Da Qu, Cai Xu Yue, Yong Heng Yang, Hui Zhe Feng, Fei Liu
Study of impact of tool wear on stable region for die steel cutting process
Caixu Yue1,a*, Da Qu1,b, Yongheng Yang1 ,c, Fei Liu1 ,d and Huizhe Feng1 ,e
Harbin University of Science and Technology, Harbin, Heilongjiang Province, China
a yuecaixu@hrust.edu.cn, b850647466@qq.com, c 1029027065@qq.com
dliufei097@163.com, e87872628@qq.com
Keywords: Hard milling; System stability region; Tool wear; Power spectrum RMS; Root locus
Abstract.
The processing of such materials uses high-speed cutting technology because that the technology can improve the production efficiency , precision molds and life of mold[1].However, if the mold steel hard cutting process system stability issues are handled properly, machined surface quality will deteriorate significantly.
Acknowledgments The authors gratefully acknowledge the support of National Natural Science Foundation of China.
TOBIAS: Int Journal of MTDR.
The processing of such materials uses high-speed cutting technology because that the technology can improve the production efficiency , precision molds and life of mold[1].However, if the mold steel hard cutting process system stability issues are handled properly, machined surface quality will deteriorate significantly.
Acknowledgments The authors gratefully acknowledge the support of National Natural Science Foundation of China.
TOBIAS: Int Journal of MTDR.
Online since: January 2013
Authors: Zhuang Xiong, Yi Long Yan, Yan Chao Yin
The Macro Program Design and Digital Simulation of the Automatic Tool Changer for 5-axis Machine
Zhuang Xionga, Yanchao Yinb and Yilong Yanc
Faculty of Mechanical and Electrical Engineering Kunming University of Science and Technology
Kunming, China, 650500
axz394561777@163.com, byinyc@163.com, cjskdyanyilong@163.com
Keywords: Automatic tool changer. 5-axis gantry milling machine.
Acknowledgements This work is supported by the Introduction of Talent Research Funds for Kunming University of Science and Technology under Grant No.
[2] Xide Lai, Qinghua Zhang, et al: Journal of Materials Processing Technology ,209(11): 4963-4969.(2009) [3] Xide Lai, Yunfei Zhou and Ji Zhou: Int.
Acknowledgements This work is supported by the Introduction of Talent Research Funds for Kunming University of Science and Technology under Grant No.
[2] Xide Lai, Qinghua Zhang, et al: Journal of Materials Processing Technology ,209(11): 4963-4969.(2009) [3] Xide Lai, Yunfei Zhou and Ji Zhou: Int.
Online since: June 2014
Authors: Zhi Yi Huo, Yu Qing Zhao, Qian Wang
We suggest higher vocational colleges should establish related department to offer technology services for the society, thus to improve and perfect its teaching method and management concept, at the same time, to provide more opportunities for teachers to participate in research and practice.
0 Introduction
With the functions of colleges and universities extending from the personnel training and scientific research to social service, enterprise scientific research institutes and colleges and universities are establishing closer and closer cooperation through technology service platform; the relations between higher education and science and technology and economic integration are becoming stronger and stronger, which has become an important driving force for economic development.
The Planning Division is mainly responsible for determining the production task according to the teaching plan and making the overall annual production plan; the Marketing Division is responsible for collecting market information and mapping out and implementing production contracts and passing on the production tasks to the Techniques Division; the Techniques Division responsible for undertaking the production task passed on from the Marketing Division and drafting technical documents such as workmanship and at last handing these over to the Production Division; The Production Division responsible for undertaking technical documents from the Techniques Division and organizing production; The Quality Inspection Division for the inspection of raw materials, product quality and passing on the qualified products to the Marketing Division.
Likewise, enterprises and local colleges can realize mutual flow of personnel, information and resources through two-way regular rent, loan and exchange of professional and technical personnel. [4] . 3 Conclusion Along with the further reform of the science and technology system, building the industry technology innovation strategic alliance will be the future development direction of technology service for the society.
References [1] Feng Ming: Journal of Changsha Aeronautical Vocational and Technical College (2010), p.87 [2] Wu Hongyuan: Construction of College-Enterprise Cooperation Support System (2011), p.112 [3] Sun Weihong: Exploring the School-Enterprise Cooperation Models of Cultivating Excellent Skilled Talents.
The Planning Division is mainly responsible for determining the production task according to the teaching plan and making the overall annual production plan; the Marketing Division is responsible for collecting market information and mapping out and implementing production contracts and passing on the production tasks to the Techniques Division; the Techniques Division responsible for undertaking the production task passed on from the Marketing Division and drafting technical documents such as workmanship and at last handing these over to the Production Division; The Production Division responsible for undertaking technical documents from the Techniques Division and organizing production; The Quality Inspection Division for the inspection of raw materials, product quality and passing on the qualified products to the Marketing Division.
Likewise, enterprises and local colleges can realize mutual flow of personnel, information and resources through two-way regular rent, loan and exchange of professional and technical personnel. [4] . 3 Conclusion Along with the further reform of the science and technology system, building the industry technology innovation strategic alliance will be the future development direction of technology service for the society.
References [1] Feng Ming: Journal of Changsha Aeronautical Vocational and Technical College (2010), p.87 [2] Wu Hongyuan: Construction of College-Enterprise Cooperation Support System (2011), p.112 [3] Sun Weihong: Exploring the School-Enterprise Cooperation Models of Cultivating Excellent Skilled Talents.
Online since: August 2013
Authors: Jin Long Huang, Wen Li Ma, Long Huang
Calculation and Simulation Azimuth Hydrostatic Thrust Bearing of a Large Alt-azimuth telescope
Long Huang1,2,a, Wenli Ma 1, Jinlong Huang 1
1The Institute of Optics and Electronics, the Chinese Academy of Science,Chengdu610209,China;
2University of Chinese Academy of Science, Beijing 100039, China
ahlong1029@163.com
Keywords: hydrostatic bearing, structure, telescope, CFD
Abstract.The use of hydrostatic bearing for support of telescope offers a number of potential performance advantages, but the structure parameter of bearing is the main factor which influence the bearing.
The material properties of oil in table 2.
Table 2 The material properties of oil Density [kg/m3] Dynamic Viscosity [Kg/m.s] Thermal conductivity [W/m.k] Specific heat capacity [J/kg.k] 866 0.0129356 0.62 1884 The equation of flow through the orifice restrictor is given as: (3) (4) whereis the pressure ratio, given by (5) Where, ρ is the density of oil,α is coefficient of flow, dc is the diameter of orifice, μ is the dynamic viscosity of the oil
[8] Dongju Chen,,Jinwei Fan, Feihu Zhang：Dynamic and static characteristics of a hydrostatic spindle for machine tools，Journal of Manufacturing Systems 31 (2012) 26–33 [9] Jonathan de Ville, MaximePiérard, Christian Bastin:The 3.6Indo-Belgian Devasthal Optical Telescope:The hydrostatic azimuth bearing, SPIE Vol.8444 84443Z 1-11,2012 [10] Moaveni, S,Finite element analysis: theory and application with ANSYS.
The material properties of oil in table 2.
Table 2 The material properties of oil Density [kg/m3] Dynamic Viscosity [Kg/m.s] Thermal conductivity [W/m.k] Specific heat capacity [J/kg.k] 866 0.0129356 0.62 1884 The equation of flow through the orifice restrictor is given as: (3) (4) whereis the pressure ratio, given by (5) Where, ρ is the density of oil,α is coefficient of flow, dc is the diameter of orifice, μ is the dynamic viscosity of the oil
[8] Dongju Chen,,Jinwei Fan, Feihu Zhang：Dynamic and static characteristics of a hydrostatic spindle for machine tools，Journal of Manufacturing Systems 31 (2012) 26–33 [9] Jonathan de Ville, MaximePiérard, Christian Bastin:The 3.6Indo-Belgian Devasthal Optical Telescope:The hydrostatic azimuth bearing, SPIE Vol.8444 84443Z 1-11,2012 [10] Moaveni, S,Finite element analysis: theory and application with ANSYS.
Online since: January 2017
Authors: Chuan Wei Zhang, Nan Ning, Meng Zhang
Research on Worktable Control of the Mask Exposal Forming Machine
Chuan-Wei ZHANG1,a, Nan NING1,b,*, Meng ZHANG1,c
1College of Mechanical Engineering, Xi’an University of Science and Technology,
Xi’an, Shaanxi, China
a963923940@qq.com, b1959918976@qq.com, c2429078553@qq.com
*Corresponding author
Keywords: Rapid Prototyping, Mask Exposal, Googol Motion Control Card, Software Control.
Introduction The rapid prototyping technology (RP Technology) was developed in the late 1980s and early 90s, which from the traditional “removing material” process into “wood material ” process.
Nanjing University of Science and Technology, 2002
Mask Exposal Forming system platform motion precision [J] Journal of xi 'an engineering university, 2010, 01: 66-70
Introduction The rapid prototyping technology (RP Technology) was developed in the late 1980s and early 90s, which from the traditional “removing material” process into “wood material ” process.
Nanjing University of Science and Technology, 2002
Mask Exposal Forming system platform motion precision [J] Journal of xi 'an engineering university, 2010, 01: 66-70
Online since: April 2013
Authors: Jun Long Yang, Hui Xin Dai, Yan Hua Guo
Beneficiation Test Research on Certain Iron Ming of Burma
Yanhua Guo1, a, Huixin Dai1, b Junlong Yang1, c
1,2,3 Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming, 650093, China
agyh19861109@163.com,bdhx6688@sina.com,cyangjunlng@163.com
Keywords: Low intensity magnetic separation; Spiral chute; High gradient magnetic separation; Limonite-Hematite ore;
Abstract.
From the source separation emerge harmful impurity, not only reduce the smelting cost, but also reduce the pollution to the environment, in mineral smelting and every link takes an important position in. [1-2] Although the run of mine ore grade is higher, still cannot reach the economic and efficient to the requirement of smelting raw materials.
Acknowledgements This study was supported by the National Natural Science Foundation of China (Grant No.51264020).
New progress of the iron ore concentration in China [J] Journal of Mining Machinery, 2010, (7):85-91.
From the source separation emerge harmful impurity, not only reduce the smelting cost, but also reduce the pollution to the environment, in mineral smelting and every link takes an important position in. [1-2] Although the run of mine ore grade is higher, still cannot reach the economic and efficient to the requirement of smelting raw materials.
Acknowledgements This study was supported by the National Natural Science Foundation of China (Grant No.51264020).
New progress of the iron ore concentration in China [J] Journal of Mining Machinery, 2010, (7):85-91.
Online since: January 2016
Authors: Muhammad Ilman Hakimi Chua Abdullah, Noreffendy Tamaldin, Nur Rashid Mat Nuri, Mohd Fadzli bin Abdollah, Hilmi Amiruddin
(1)
(2)
where Hmin is the dimensionless minimum film thickness, U is the dimensionless speed parameter (uno)/(E’R’), G is the dimensionless material parameter αE’,W is the dimensionless load parameter (F/(E’R’2), R’ and E’ are the reduced radius (1/R1 + 1/R2)0.5 and the modulus of elasticity ((1-v12)/E1 + (1-v22)/E2) of the interacting solids, F is the applied load, u is the mean speed of contacts in (u1 + u2)/2, no and α are the dynamic viscosity and the pressure viscosity coefficient, respectively, k is the elipticity ratio (Ry/Rx) equals to one for point contact.
The minimum film thickness (hmin) is calculated using Eq. 3; (3) The volume of the ball’s worn material was estimated geometrically; using the basis of the radius of the wear scar and its height using the following equations: (4) (5) where, V is the wear volume in mm3, h is the height of wear scar in mm, R is the radius of the ball in mm, and a is the radius of the wear scar in mm.
This research was supported by grants from the World Academy of Sciences (TWAS) [grant number: GLUAR/2013/FKM (2)/A00003], Ministry of Education Malaysia [grant number: FRGS/2013/FTK/TK06/02/3/F00166], and Universiti Teknikal Malaysia Melaka (UTeM) [grants number: PJP/2012/FKM (40A)/S01044 and PJP/2012/FKM (11A)/S01086].
Masjuki, The effect of palm oil trimethylolpropane ester on extreme pressure lubrication, Journal of Engineering Tribology. 10.1177/1350650113500945 (2014)
Mat Nuri, Effect of hBN/Al2O3 nanoparticle additives on the tribological performance of engine oil, Jurnal Teknologi (Sciences and Engineering). 66(3) (2014) 1-6
The minimum film thickness (hmin) is calculated using Eq. 3; (3) The volume of the ball’s worn material was estimated geometrically; using the basis of the radius of the wear scar and its height using the following equations: (4) (5) where, V is the wear volume in mm3, h is the height of wear scar in mm, R is the radius of the ball in mm, and a is the radius of the wear scar in mm.
This research was supported by grants from the World Academy of Sciences (TWAS) [grant number: GLUAR/2013/FKM (2)/A00003], Ministry of Education Malaysia [grant number: FRGS/2013/FTK/TK06/02/3/F00166], and Universiti Teknikal Malaysia Melaka (UTeM) [grants number: PJP/2012/FKM (40A)/S01044 and PJP/2012/FKM (11A)/S01086].
Masjuki, The effect of palm oil trimethylolpropane ester on extreme pressure lubrication, Journal of Engineering Tribology. 10.1177/1350650113500945 (2014)
Mat Nuri, Effect of hBN/Al2O3 nanoparticle additives on the tribological performance of engine oil, Jurnal Teknologi (Sciences and Engineering). 66(3) (2014) 1-6
Online since: September 2015
Authors: N. Rebah, B. Benyoucef
BENYOUCEF2
1 LPMR Research Laboratory, Faculty of Science and Technology
University of Souk Ahras, Algeria, 41000
2 URMER Research Laboratory.
Faculty of Science University of Tlemcen, Algeria, 13000 anrebah@gmail.com Keywords: Energy buildings consumption, Solar heating System, Energy simulation of building, economic comparison, Algerian regulation Abstract.
Our program was developed in the unit of research for materials and renewable energies at Tlemcen in collaboration with the research laboratory LPMR of Souk Ahras University.
Kyriakis, Energy consumption of a residential building: comparison of conventional and RES-based systems, International Journal of Sustainable Energy 28 2009
Faculty of Science University of Tlemcen, Algeria, 13000 anrebah@gmail.com Keywords: Energy buildings consumption, Solar heating System, Energy simulation of building, economic comparison, Algerian regulation Abstract.
Our program was developed in the unit of research for materials and renewable energies at Tlemcen in collaboration with the research laboratory LPMR of Souk Ahras University.
Kyriakis, Energy consumption of a residential building: comparison of conventional and RES-based systems, International Journal of Sustainable Energy 28 2009