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Online since: December 2013
Authors: Ju Zhang, Kun Hua Zhong, Lei Feng Liu, Yuan Yao, Yu Wen Chen
Testing and experiment
We implemented a simple animation material resources retrieval system, to verify the Click-Tracking Network.
Each animation material resource has a name, description of material resources and the corresponding resource link address attribute.
According to the query condition, the system returns the animation material resources query address and the calculated scores which match the query.
Acknowledgement This work was supported by National Science and Technology Ministry(2013BAH25F02) and(Y21Z070E10 ) References [1] V.
Luhn:IBM Journal of Research and Development, vol. 1(4), pp. 309–317, 1957
Each animation material resource has a name, description of material resources and the corresponding resource link address attribute.
According to the query condition, the system returns the animation material resources query address and the calculated scores which match the query.
Acknowledgement This work was supported by National Science and Technology Ministry(2013BAH25F02) and(Y21Z070E10 ) References [1] V.
Luhn:IBM Journal of Research and Development, vol. 1(4), pp. 309–317, 1957
Online since: January 2013
Authors: Hao Hu, Jia Ning Zheng, Dao Zheng Huang
Introduction
The supply chain is a worldwide network of suppliers, factories, warehouses, distribution centers, and retailers through which raw materials are acquired, transformed, and delivered to customers.
Generally, Shipbuilding Supply Chain is an integrated functional network chain structure, which based on the shipbuilding companies as the core, through the control of information flow, capital flow, and logistics, starting from the procurement of raw materials, the manufacturing of the intermediate products and the final products, and the final delivery, which connect the suppliers, shipbuilders and the ship-owners [2].
Science Technology and Engineering, 2008 Vol.8 No.15, pp. 4264-4269
International Journal of Manufacturing Technology and Management.
Generally, Shipbuilding Supply Chain is an integrated functional network chain structure, which based on the shipbuilding companies as the core, through the control of information flow, capital flow, and logistics, starting from the procurement of raw materials, the manufacturing of the intermediate products and the final products, and the final delivery, which connect the suppliers, shipbuilders and the ship-owners [2].
Science Technology and Engineering, 2008 Vol.8 No.15, pp. 4264-4269
International Journal of Manufacturing Technology and Management.
Online since: March 2012
Authors: Ping Yang, Wei Wei, Qian Hong He, Quay Le Chen
Thermal analysis and cooling optimization of the built-in micro projector
Wei Wei1,a, PingYang1,b, Qianhong He1,c and Quayle Chen2,d
1School of Mechatronics Engineering, University of Electronic Science and
Technology of China, Chengdu, Sichuan, 611731, China
2Nokia Research Center Beijing, Beijing,100176,China
aweiwei2508402031@163.com, bping@uestc.edu.cn, crobin_hqh@126.com, dquayle.chen@nokia.com
Keywords: micro projector; thermal analysis; LED; cooling optimization
Abstract.
The material parameters of LED package are shown in Table.1.
FPCB substrate Copper metal Thermal grease Ceramic layer Copper heat sink Thermal conductivity [W/(m·k)] 0.36 385 6 10.31 385 Radiation coefficient 0.92 0.04 - - 0.04 Table.1 The Material parameters of LED package DMD chip.
Make simplifications and assumptions as follows: LED and DMD chip are the thermal sources of the micro projector, so ignore the heat generated by the current through the passive components and attachments; Ignore the thermal properties of optical components, such as lens and optical integrators, and they can be defined as modules which have no heat and no thermal conduction; Assume that every material of the micro projector is isotropic and has uniform thermal conductivity, and the density value of every material takes an average; Boundary conditions: the ambient temperature is 25℃, 1 atm, ρ=1.185kg/m3, CP=1005J/(kg·K), ν=15.53×10-6m2/s, Pr=0.702kg/m3.
[5] Zhou Jing-xian, Wu Rong-zhi, in: Digital Micromirror Device (DMD), edited by Chinese Journal of Liquid Crystals and Displays (2003)
The material parameters of LED package are shown in Table.1.
FPCB substrate Copper metal Thermal grease Ceramic layer Copper heat sink Thermal conductivity [W/(m·k)] 0.36 385 6 10.31 385 Radiation coefficient 0.92 0.04 - - 0.04 Table.1 The Material parameters of LED package DMD chip.
Make simplifications and assumptions as follows: LED and DMD chip are the thermal sources of the micro projector, so ignore the heat generated by the current through the passive components and attachments; Ignore the thermal properties of optical components, such as lens and optical integrators, and they can be defined as modules which have no heat and no thermal conduction; Assume that every material of the micro projector is isotropic and has uniform thermal conductivity, and the density value of every material takes an average; Boundary conditions: the ambient temperature is 25℃, 1 atm, ρ=1.185kg/m3, CP=1005J/(kg·K), ν=15.53×10-6m2/s, Pr=0.702kg/m3.
[5] Zhou Jing-xian, Wu Rong-zhi, in: Digital Micromirror Device (DMD), edited by Chinese Journal of Liquid Crystals and Displays (2003)
Online since: July 2012
Authors: Yi Yun Yuan, Da Peng Yang, You Dong Ye, Qi Jun Wu
The SIC/CAS of CMCs was simulated from the material parameter from table 1.
Table 1 SiC/CAS material parameter Young’s modulus of the fiber (GPa) 200 Young’s modulus of the matrix (GPa) 97 Fiber radius 7.5 Volume fraction of the fiber 0.37 Fiber possion ratio 0.2 Matrix possion ratio 0.2 The thermal stress(MPa) 8913 Interfacial shear stress (MPa) 10 Interfacial debonding energy () 1.4 The final stress of the matrix satutated crack (MPa) 250-260 From the above material parameter, the stress/strain curve can be simulated, and the effect of the debonding stress to the curve can be analysed.
The improved Monte Carlo simulation has been made according to the material parameter from table1, which was compared to the Beyerle’s experiment.
B. , Hutchinson, J.W. and Evans, A.G., 1986, "Matrix Fracture in Fiber-Reinforced Ceramics," Journal of-Mechanics and Physics of Solids, Vol. 34,NO. 2, pp. 167-189
Solti, “Modeling of Progressive Damage in Fiber-Reinforced Ceramic Matrix Composites,” AD 96-2 [6] Miaoyan matrix failure model of the ceramic matrix composites Nanjing University of Aeronautics and Astronautics,master's paper . (2007) [7] Aveston, J., Cooper, G.A., and Kelly, A., Single and Multiple Fracture, The Properties of Fibre Composites, IPC Science and Technology Press, Surrey,England, 1971, 15-26
Table 1 SiC/CAS material parameter Young’s modulus of the fiber (GPa) 200 Young’s modulus of the matrix (GPa) 97 Fiber radius 7.5 Volume fraction of the fiber 0.37 Fiber possion ratio 0.2 Matrix possion ratio 0.2 The thermal stress(MPa) 8913 Interfacial shear stress (MPa) 10 Interfacial debonding energy () 1.4 The final stress of the matrix satutated crack (MPa) 250-260 From the above material parameter, the stress/strain curve can be simulated, and the effect of the debonding stress to the curve can be analysed.
The improved Monte Carlo simulation has been made according to the material parameter from table1, which was compared to the Beyerle’s experiment.
B. , Hutchinson, J.W. and Evans, A.G., 1986, "Matrix Fracture in Fiber-Reinforced Ceramics," Journal of-Mechanics and Physics of Solids, Vol. 34,NO. 2, pp. 167-189
Solti, “Modeling of Progressive Damage in Fiber-Reinforced Ceramic Matrix Composites,” AD 96-2 [6] Miaoyan matrix failure model of the ceramic matrix composites Nanjing University of Aeronautics and Astronautics,master's paper . (2007) [7] Aveston, J., Cooper, G.A., and Kelly, A., Single and Multiple Fracture, The Properties of Fibre Composites, IPC Science and Technology Press, Surrey,England, 1971, 15-26
Online since: October 2011
Authors: Yuttachai Keawsuntia, Cheevin Limsiri, Thamrong Prempridi, Sanguan Patamatamkul
Since raw materials used for energy generation such as oil, coal and natural gas will be used up in the near future.
For example, the materials used in constructions are cheap and the technologies involved are conventional.
Solar Chimneys, Encyclopedia of Physical Science and Technology. 3rd ed.
International Journal of Renewable Energy Engineering, Vol. 3, No. 2, (2001) [6] Koonsrisuk, A. and Chitsomboon,T.
For example, the materials used in constructions are cheap and the technologies involved are conventional.
Solar Chimneys, Encyclopedia of Physical Science and Technology. 3rd ed.
International Journal of Renewable Energy Engineering, Vol. 3, No. 2, (2001) [6] Koonsrisuk, A. and Chitsomboon,T.
Online since: September 2007
Authors: Shoichi Kikuchi, Yutaka Kameyama, Kengo Fukazawa, Jun Komotori
The Effect of Hybrid Surface Modification; Combination of Fine Particle
Bombardment Treatment and Nitriding, on Fatigue Properties of Steel
Shoichi Kikuchi1, a, Jun Komotori2, b, Yutaka Kameyama
1, c
and Kengo Fukazawa3, d
1
Graduate school of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kouhoku-ku,
Yokohama-shi, Kanagawa, 223-8522, Japan
2
Department of Mechanical Engineering, Keio University, 3-14-1, Hiyoshi, Kouhoku-ku,
Yokohama-shi, Kanagawa, 223-8522, Japan
3
Neturen Co., Ltd.
Introduction Since a fatigue crack is initiated at the surface of material, surface of mechanical parts are commonly strengthened by surface modification process to improve fatigue strength.
However, when a surface is strengthened by some surface modification process, fatigue cracks can be initiated from non-metallic inclusions located within the material (internal fracture mode).
Experimental procedure Material used in this study was AISI 4135 chromium molybdenum steel.
As a result, in the NF series, internal fracture occurred at the non-metallic inclusion inside the material, though they possessed a notch.
Introduction Since a fatigue crack is initiated at the surface of material, surface of mechanical parts are commonly strengthened by surface modification process to improve fatigue strength.
However, when a surface is strengthened by some surface modification process, fatigue cracks can be initiated from non-metallic inclusions located within the material (internal fracture mode).
Experimental procedure Material used in this study was AISI 4135 chromium molybdenum steel.
As a result, in the NF series, internal fracture occurred at the non-metallic inclusion inside the material, though they possessed a notch.
Online since: July 2005
Authors: Sung S. Park, Dae H. Kang, Geun Tae Bae, Nack Kim
Kim
d
Center for Advanced Aerospace Materials
Pohang University of Science and Technology, Pohang 790-784, Korea
a
manim@postech.ac.kr, bsunset@postech.ac.kr, cgeunja@postech.ac.kr, d
njkim@postech.ac.kr
Keywords: strip casting, AZ31, ZMA611, dispersoid particles.
However, there is a lack of competitive Mg wrought products, especially sheet materials, which are much needed for numerous weight-sensitive applications.
Kim: Journal of Rare Earth Vol. 22 S (2004), p. 78 [9] K.C.
However, there is a lack of competitive Mg wrought products, especially sheet materials, which are much needed for numerous weight-sensitive applications.
Kim: Journal of Rare Earth Vol. 22 S (2004), p. 78 [9] K.C.
Online since: June 2010
Authors: Dan Qing Yuan, You Quan He, Jian Ping Li, He Zhang, Chun Fang Chang
Numerical Simulation and Experiment of a New Drive Device of
High-temperature Magnetic Pump
Danqing Yuan1,a, Youquan He1,b, Jianping Li1,c
,
He Zhang1,d
, Chunfang Chang2,e
1
School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013,China
2
Institute of Process Equipment, East China University of Science and Technology,
Shanghai 2000237, China
a
ydq@ujs.edu.cn,b heyouquan66@126.com,c freestyle0228@163.com,
d
he168198737@126.com,e changchunfang1985@163.com
Key words: Magnetic coupling; Magnetic pump; Finite element analysis; Electromagnetic field
analysis; Induced current
Abstract.
With the development of magnetic materials and over half a century of technological innovation, magnetic pump has been widely used in petroleum, chemical, pharmaceutical, food and nuclear power industries, etc.
Sung: Journal of Magnetism and Magnetic Materrials. vol. 239(2002), p.614-616 [11] Nan-Chyuan Tsai, Jiun-Sheng Liou, Chih-Che Lin, etal: Sensors and Actuators A: Physical, vol. 157(2010), p.68-76 [12] Pan Zheng, Yousef Haik, Mohammad Kilani, etal: Jouarnal of Magnetism and Magnetic Materials,vol.241(2002), p.292-302
With the development of magnetic materials and over half a century of technological innovation, magnetic pump has been widely used in petroleum, chemical, pharmaceutical, food and nuclear power industries, etc.
Sung: Journal of Magnetism and Magnetic Materrials. vol. 239(2002), p.614-616 [11] Nan-Chyuan Tsai, Jiun-Sheng Liou, Chih-Che Lin, etal: Sensors and Actuators A: Physical, vol. 157(2010), p.68-76 [12] Pan Zheng, Yousef Haik, Mohammad Kilani, etal: Jouarnal of Magnetism and Magnetic Materials,vol.241(2002), p.292-302
Online since: June 2014
Authors: Paolo De Pascali, Daniela De Ioris, Valentina Alberti, Michele Reginaldi
This approach appears to be behind the concept of "urban environment" of the EU (assumed as the foundation of the methodology described below) as the result of the impact of settlements in terms of damage (withdrawal and pollution) of the finite natural resources (energy, air, water, natural soil, raw materials, emissions, solid waste, etc..) and the related effects on the ecosystems and the quality of human life.
The commitment on this line could allow to resume and deploy the predictive assumptions of Giovanni Astengo towards urbanism as a science, at least in terms of partial but especially in progressive and evolutionary way.
Fig.1 – Methodological route The urban comfort is evaluated according to three main parameters related to: - Permeability of soils, as a potential evapo-transpiration capacity of the soil; substantially corresponds to a index coverage / natural soils; - Albedo, as reflected fraction of solar radiation due to the color and nature of the surface materials and the parts of the settlement (refer with: Fig. 2); - Urban heat island, representing the result of the preceding factors plus others (thermal trap, entropic heat, pollution, particulate matter, etc.). useful in locating the main urban conditions of discomfort in our latitudes in terms of microclimate, the evaluation is done by parametric simulations (refer with: Fig. 3).
In: Journal of climatology 1 (1981) [3] Peter Droege: The Renewable City, John Wiley & Sons Ltd, England (2006) [4] P.
The commitment on this line could allow to resume and deploy the predictive assumptions of Giovanni Astengo towards urbanism as a science, at least in terms of partial but especially in progressive and evolutionary way.
Fig.1 – Methodological route The urban comfort is evaluated according to three main parameters related to: - Permeability of soils, as a potential evapo-transpiration capacity of the soil; substantially corresponds to a index coverage / natural soils; - Albedo, as reflected fraction of solar radiation due to the color and nature of the surface materials and the parts of the settlement (refer with: Fig. 2); - Urban heat island, representing the result of the preceding factors plus others (thermal trap, entropic heat, pollution, particulate matter, etc.). useful in locating the main urban conditions of discomfort in our latitudes in terms of microclimate, the evaluation is done by parametric simulations (refer with: Fig. 3).
In: Journal of climatology 1 (1981) [3] Peter Droege: The Renewable City, John Wiley & Sons Ltd, England (2006) [4] P.
Online since: August 2013
Authors: Xiu Li Feng, Xiao Liu, Jie Liu
Materials and methods
In the present work, engineering geological investigation data, laboratory analysis data and analysis report of two cores (ZK-1 and ZK-2) at the Yellow River delta were selected to study the different of geotechnical engineering properties at the old course of the modern Yellow River and the current course of the modern Yellow River and calculated the consolidation settlement.
The clay and other fine particulate materials in the upper strata were carried away under the effect of hydrodynamic.
[3] Yichun Li, Gongxiao Sun, Ruijie Li and Danmei Lv: Journal of ocean university of Qingdao, Vol. 33(2003), p. 281 In Chinese
[4] Wei Yang, Shenliang Chen, Guochuan Gu and Xiaoying Chen: Marine science bulletin, Vol. 29(2010), p. 44 In Chinese
The clay and other fine particulate materials in the upper strata were carried away under the effect of hydrodynamic.
[3] Yichun Li, Gongxiao Sun, Ruijie Li and Danmei Lv: Journal of ocean university of Qingdao, Vol. 33(2003), p. 281 In Chinese
[4] Wei Yang, Shenliang Chen, Guochuan Gu and Xiaoying Chen: Marine science bulletin, Vol. 29(2010), p. 44 In Chinese