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Online since: December 2005
Authors: Eddy Simoen, Cor Claeys, Eugenijus Gaubas, J.M. Rafí
Mat Science and Appl.
At longer carrier decay times, multiple trapping events dominate that can be described by a stretched exponent approach, typical of disordered materials.
This implies a need for the materials characterization of thin semiconductor layers.
In case MOSFETs are available on an SOI substrate, several device-based techniques have been developed for materials' characterization [2].
A detailed analysis reveals that the asymptotic carrier decay is composed of multiple trapping events that can be described in a similar way as for disordered materials [1].
At longer carrier decay times, multiple trapping events dominate that can be described by a stretched exponent approach, typical of disordered materials.
This implies a need for the materials characterization of thin semiconductor layers.
In case MOSFETs are available on an SOI substrate, several device-based techniques have been developed for materials' characterization [2].
A detailed analysis reveals that the asymptotic carrier decay is composed of multiple trapping events that can be described in a similar way as for disordered materials [1].
Online since: February 2011
Authors: Fan Jiang, Yue Zeng Xu
Study the Equipment Based on Fast Flood Discharge
Yuezeng Xu1, a, Fan Jiang1, b
1Zhejiang tongji vocational college of science and technology, Hangzhou 311231,zhejiang provience,China
ayzxu9@126.com, bfanfan_0099@163.com
Keywords: Flood Discharge; Quick Assembling and Disassembling, Mixed-flow Pump.
Selection of materials. 1) the shell of the draining pump is made by wilding using high-strength steel plate instead of casting using cast iron, and the type of steel material is Q345B, high-strength type 35GrMo can also be used as change from normal type 45 steel.
Material of the shell of the matched electric motor also changes to aluminum alloy.
Hu :Study on Transient Hydrodynamic performance of Mixed-Flow-Pump during Starting Period.: Journal of Zhejiang University(Engineering Science)
Selection of materials. 1) the shell of the draining pump is made by wilding using high-strength steel plate instead of casting using cast iron, and the type of steel material is Q345B, high-strength type 35GrMo can also be used as change from normal type 45 steel.
Material of the shell of the matched electric motor also changes to aluminum alloy.
Hu :Study on Transient Hydrodynamic performance of Mixed-Flow-Pump during Starting Period.: Journal of Zhejiang University(Engineering Science)
Online since: June 2012
Authors: Ramiah Harikrishnan, Kanesan Jeevan, Samuel Ratnajeevan Herbert Hoole, Paul Ratnamahilan Polycarp Hoole, Lwin Maw Abdul Raheem
JAPMED’6 (2009) pp. 77-8
[2] Dongxu Liu, Longbin Liu and Junhui Meng: Materials Science Forum Vol. 686 (2011) pp. 792-796
[3] P.R.P.
[5] Ji-yu An, Li Zhang and Song-bo Ma: Materials Science Forum Vols. 663-665 (2011) pp. 1192-1195 [6] A.
Friedlander, IEEE Journal of Oceanic Engineering, Vol.
[5] Ji-yu An, Li Zhang and Song-bo Ma: Materials Science Forum Vols. 663-665 (2011) pp. 1192-1195 [6] A.
Friedlander, IEEE Journal of Oceanic Engineering, Vol.
Online since: August 2018
Authors: Nur Alwani Ali Bashah, Bassim H. Hameed, N. Mohammad Nor, Zuraida Wan
Activated carbon (AC) is well known as a porous material that contains large specific surface area and has proven to be highly effective catalyst support as investigated by Fan and Zhang in the transesterification of dimethyl carbonate with propyl alcohol [10].
Materials and Methods Material and Chemicals.
Acknowledgements The authors acknowledge the financial supports provided by Universiti Teknologi MARA, Pulau Pinang, Malaysia and the research grant provided by the Ministry of Science, Technology and Innovation (MOSTI), Malaysia under the Science Fund grant (Project No: 03-01-05-SF0207).
McCormick: Journal of Undergraduate Chemistry Research 4 (2009), p. 58-62 [14] M.
Materials and Methods Material and Chemicals.
Acknowledgements The authors acknowledge the financial supports provided by Universiti Teknologi MARA, Pulau Pinang, Malaysia and the research grant provided by the Ministry of Science, Technology and Innovation (MOSTI), Malaysia under the Science Fund grant (Project No: 03-01-05-SF0207).
McCormick: Journal of Undergraduate Chemistry Research 4 (2009), p. 58-62 [14] M.
Online since: November 2013
Authors: Xue Yu Xiong, Zhao Yang Su
The retaining structure was damaged; the roof material was shedding and missing.
The crack of the wood component normally had relationship with the material itself.
Since water could enter into the bottom of the wall, while some materials of the retaining wall could make chemical reaction when they met water, the retaining wall became loosing, stripping, and falling off after water erosion for a long time.
Vol.10 (2006), p.102-104, in Chinese [3] Genbao Fang: Journal of Huangshan University.
Vol.10 (2008), p.97-98, in Chinese [4] Jinqian Wang: Housing Science. (2009), p.56-60, in Chinese [5] Kaifeng Xing, Shenjiang Huang: China Housing Facilities.
The crack of the wood component normally had relationship with the material itself.
Since water could enter into the bottom of the wall, while some materials of the retaining wall could make chemical reaction when they met water, the retaining wall became loosing, stripping, and falling off after water erosion for a long time.
Vol.10 (2006), p.102-104, in Chinese [3] Genbao Fang: Journal of Huangshan University.
Vol.10 (2008), p.97-98, in Chinese [4] Jinqian Wang: Housing Science. (2009), p.56-60, in Chinese [5] Kaifeng Xing, Shenjiang Huang: China Housing Facilities.
Online since: January 2016
Authors: Cheng Yong Wang, Yue Xian Song, Li Juan Zheng, Zhi Shun Chen, Xin Huang
With the decrease of the heat transmission and constant increase of the cutting temperature during PCB micro-drilling, the resin material may melt, which may lead the glass fiber chips firmly adhere to copper chips [2,3].
A Review on Drilling Printed Circuit Boards, Advanced Materials Research, 2011(188):441-449
Erkki, A summary of methods applied to tool condition monitoring in drilling, International Journal of Machine Tools & Manufacture,2002,42(9):997-1010
Ma, Design of needle-contact broken drill detection, University of Electronic Science and Technology of China, 2012.4
Xu, Signal and system (the second edition), Hefei: The Press of China Science &Technology University, 2006.3(168-175).
A Review on Drilling Printed Circuit Boards, Advanced Materials Research, 2011(188):441-449
Erkki, A summary of methods applied to tool condition monitoring in drilling, International Journal of Machine Tools & Manufacture,2002,42(9):997-1010
Ma, Design of needle-contact broken drill detection, University of Electronic Science and Technology of China, 2012.4
Xu, Signal and system (the second edition), Hefei: The Press of China Science &Technology University, 2006.3(168-175).
Online since: August 2011
Authors: Jian Pan, Guo Hong Mao, Lan Fen Lin
Research on Product Modeling Method for Supporting the Networked Manufacturing
GuoHong Mao 1,a, Jian Pan 1,b, LanFen Lin2,c
1 Dept. of Computer Science and Software, ZheJiang University of Technology, Hangzhou, China
2Dept. of Computer Science, Zhejiang University, Hangzhou, China
a mgh@zjut.edu.cn, b pj@zjut.edu.cn, c llf@zju.edu.cn
Key word: Networked Manufacturing;Product Modeling;Agent Technology;Web Service
Abstract.This paper introduces a new product modeling method: MAPMNM (Multi-Agent Based Product Modeling for Networked Manufacturing) based on analysing the requirements of product modeling.
Furthermore, a meta-model can continue to refine into smaller meta-models, for example, the part properties meta-model is composed of materials, heat treatment, density, specific heat, coefficient of ablation meta-models.
For example, the operation of reading material, density, specific heat, stiffness and other properties of various parts. (2) Enable Operator: It is a basic operation of extracting meta-model from the master model as the operation object, so that a certain character change occurs on meat-model. (3) Analysis Operator: It is a basic operation of making a comprehensive analysis on the meta-model extracted from the master model, based on the domain knowledge.
References [1] Yan LUO,XinJian ZHOU, Researchg on product modeling methods based on advanced manufacturing technology;Journal of East China Jiaotong University , Vol. 16 No.2(June, 1999),P.40-45 [2] QiuQiong Yan,ShuangXi Huang,YouLiang Zhang, Feature-based collaborative product modeling, Jiangsu Machine Building & Automation, No.3(2000),P.12-15 [3] ShuZi Yang,Bo Wu,ChunHua Wu, Networked Manufacturing and Enterprise Integration, China Mechanical Engineering, Vol. 11 No.1(2000),P.45-48 [4] XiaoLi Qiu,Hong Yi,XiYing Wu,WenCheng Tang, The STEP and XML technology in sharing of network design and manufacture information, Group Technology & Production Modernization; Vol. 18 No.3(2001),P.8-10 [5] YunLi Wang,Tianyuan Xiao, Research on the technology of multi-agent systems in manufacture area, Computer Integrated Manufacturing Systems, Vol. 7 No.10(2001) ,P.1-7 [6] Daozhi ZHAO, Miao FANG, The Key of Network Manufacturing: Integrating Material, Information, Capital and Knowledge Flows, www.ifm.eng.cam.ac.uk
Furthermore, a meta-model can continue to refine into smaller meta-models, for example, the part properties meta-model is composed of materials, heat treatment, density, specific heat, coefficient of ablation meta-models.
For example, the operation of reading material, density, specific heat, stiffness and other properties of various parts. (2) Enable Operator: It is a basic operation of extracting meta-model from the master model as the operation object, so that a certain character change occurs on meat-model. (3) Analysis Operator: It is a basic operation of making a comprehensive analysis on the meta-model extracted from the master model, based on the domain knowledge.
References [1] Yan LUO,XinJian ZHOU, Researchg on product modeling methods based on advanced manufacturing technology;Journal of East China Jiaotong University , Vol. 16 No.2(June, 1999),P.40-45 [2] QiuQiong Yan,ShuangXi Huang,YouLiang Zhang, Feature-based collaborative product modeling, Jiangsu Machine Building & Automation, No.3(2000),P.12-15 [3] ShuZi Yang,Bo Wu,ChunHua Wu, Networked Manufacturing and Enterprise Integration, China Mechanical Engineering, Vol. 11 No.1(2000),P.45-48 [4] XiaoLi Qiu,Hong Yi,XiYing Wu,WenCheng Tang, The STEP and XML technology in sharing of network design and manufacture information, Group Technology & Production Modernization; Vol. 18 No.3(2001),P.8-10 [5] YunLi Wang,Tianyuan Xiao, Research on the technology of multi-agent systems in manufacture area, Computer Integrated Manufacturing Systems, Vol. 7 No.10(2001) ,P.1-7 [6] Daozhi ZHAO, Miao FANG, The Key of Network Manufacturing: Integrating Material, Information, Capital and Knowledge Flows, www.ifm.eng.cam.ac.uk
Online since: March 2007
Authors: Heung Ju Kim, Hyeon Jin Cho, Chang Keun Chun, Woong Seong Chang
Finally, after the tool is drawn out of the material, the
joint between the upper and the lower plates is completed at the area where the plastic flow occurred. [3]
Plunging depth
Joining time
Extraction of tool from top surface of material
Contact of pin to top surface of material
Dwell time
Axial Loading
Tool rotation
Plunging Stirring Drawing out
Fig. 1 Schematic of friction spot joining process Fig. 2 Schematic of friction spot joining process
Experimental procedure
Materials Preparation.
Chemical composition and mechanical properties of AA5052 & AA6111 Materials Chemical composition (wt %) Mg Si Cr Mn Cu Zn Fe Al AA5052-H32 2.6 0.25 0.20 0.10 0.10 0.10 0.40 Bal.
Materials Mechanical properties Ultimate tensile strength (MPa) Yield strength (MPa) Elongation (%) AA5052-H32 228 193 12 AA6111-T4 280 156 28 Experimental conditions.
The grain size in the stirred zone is about three times smaller than that in the base metal and in the HAZ is about one point two times bigger than that in the base metal two of materials 3.
Fujimoto : Journal of Light Metal Welding and Construction, Vol. 43 (2005), No. 9, pp. 23-33
Chemical composition and mechanical properties of AA5052 & AA6111 Materials Chemical composition (wt %) Mg Si Cr Mn Cu Zn Fe Al AA5052-H32 2.6 0.25 0.20 0.10 0.10 0.10 0.40 Bal.
Materials Mechanical properties Ultimate tensile strength (MPa) Yield strength (MPa) Elongation (%) AA5052-H32 228 193 12 AA6111-T4 280 156 28 Experimental conditions.
The grain size in the stirred zone is about three times smaller than that in the base metal and in the HAZ is about one point two times bigger than that in the base metal two of materials 3.
Fujimoto : Journal of Light Metal Welding and Construction, Vol. 43 (2005), No. 9, pp. 23-33
Online since: August 2024
Authors: Thomas Mikolajick, Uwe Schroeder, Sandra Krause
Additionally, the ranking of high-k materials remains consistent for both substrates.
Journal of Applied Physics 123, 164101 (2018)
Hafnium Oxide Based CMOS Compatible Ferroelectric Materials.
Advances in Materials Science and Engineering 2014, 1–18 (2014)
Thermochemical insights into refractory ceramic materials based on oxides with large tetravalent cations.
Journal of Applied Physics 123, 164101 (2018)
Hafnium Oxide Based CMOS Compatible Ferroelectric Materials.
Advances in Materials Science and Engineering 2014, 1–18 (2014)
Thermochemical insights into refractory ceramic materials based on oxides with large tetravalent cations.