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Online since: May 2012
Authors: Yao Bin Li
After the advance of the face, we use high-moisture quick-setting material backfill the heading side near the goaf, and use filling templates to mix 2 kinds of filling materials until its solidification.
Basis on the carriage,we design the feeding system between and filling pump, which achieve automatic unloading filling materials from the container material box to feeding system, then sent to the filling pump.
The dry mix CHCT filling material, which is produced by dedicated production line on the ground according to the design ratio, is transported to the underground pump station in bags or special containers.
Acknowledgements This work was financially supported by the Anhui Province Higher school science and technology innovation team to plan (2006KJ005TD), Dr master in Anhui University of Science and Technology fund (2006yb55).
Journal of Coal Science and engineering 1998(1) [4] Increasing Coal Absolute Permeability in the San Juan Basin Fruitland Formation.
Basis on the carriage,we design the feeding system between and filling pump, which achieve automatic unloading filling materials from the container material box to feeding system, then sent to the filling pump.
The dry mix CHCT filling material, which is produced by dedicated production line on the ground according to the design ratio, is transported to the underground pump station in bags or special containers.
Acknowledgements This work was financially supported by the Anhui Province Higher school science and technology innovation team to plan (2006KJ005TD), Dr master in Anhui University of Science and Technology fund (2006yb55).
Journal of Coal Science and engineering 1998(1) [4] Increasing Coal Absolute Permeability in the San Juan Basin Fruitland Formation.
Online since: August 2024
Authors: Luca Larcher, Milan Pesic, Davide Cornigli, Tom Becker, Johann Tobias Erlbacher, Holger Schlichting
Modelling-Augmented Failure Diagnostics in Planar SiC MOS Devices Using TDDB Measurements
Davide Cornigli1,a*, Holger Schlichting2,b, Tom Becker 2,c, Luca Larcher1,d, Tobias Erlbacher3,4,e, Milan Pešić 5,f
1Applied Materials Inc, Reggio Emilia RE, Italy
2Fraunhofer IISB, Erlangen, Germany
3Nexperia Germany GmbH, Hamburg, Germany
4Chair of Electron Devices, University Erlangen-Nuremberg, Erlangen, Germany
5Applied Materials Inc, Santa Clara, CA, USA
adavide_cornigli@amat.com, bholger.schlichting@iisb.fraunhofer.de, ctom.becker@iisb.fraunhofer.de, dluca_larcher@amat.com, etobias.erlbacher@nexperia.com fmilan_pesic@amat.com
Keywords: 4H-SiC, Gate Oxide, Defects, Modeling, Reliability
Abstract.
Gurfinkel et al., "Time-Dependent Dielectric Breakdown of 4H-SiC/ SiO2 MOS Capacitors," in IEEE Transactions on Device and Materials Reliability, vol. 8, no. 4, pp. 635-641, Dec. 2008
Schlichting et al., The Influence of Extended Defects in 4H-SiC Epitaxial Layers on Gate Oxide Performance and Reliability”, Material Science Forum 2023, Accepted for Publication
[7] Applied Materials Ginestra® https://www.appliedmaterials.com/us/en/semiconductor/ginestra-software.html [8] A.
Padovani et al., "A microscopic mechanism of dielectric breakdown in SiO2 films: An insight from multi-scale modeling", Journal of Applied Physics 121, 155101 (2017)
Gurfinkel et al., "Time-Dependent Dielectric Breakdown of 4H-SiC/ SiO2 MOS Capacitors," in IEEE Transactions on Device and Materials Reliability, vol. 8, no. 4, pp. 635-641, Dec. 2008
Schlichting et al., The Influence of Extended Defects in 4H-SiC Epitaxial Layers on Gate Oxide Performance and Reliability”, Material Science Forum 2023, Accepted for Publication
[7] Applied Materials Ginestra® https://www.appliedmaterials.com/us/en/semiconductor/ginestra-software.html [8] A.
Padovani et al., "A microscopic mechanism of dielectric breakdown in SiO2 films: An insight from multi-scale modeling", Journal of Applied Physics 121, 155101 (2017)
Online since: October 2011
Authors: Jian Wang, Wei Qing Ling, Rong Yong Zhao
In this production-energy-coupled model (PECM), four flows are included, the material flow, the energy flow, the information flow and the emission flow.
Introduction In the development process of industrialization, the typical high energy-intensive industries, represented by chemical, metallurgy, oil refining, and electrical power generation by the fossil fuels, building materials, textile industries, etc., are consuming the main energy resources around the world.
Based on common characteristic analysis for production of the factories in typical continuous industries with great energy-consumption and great emission, represented by chemical, metallurgy, oil refining, and electrical power generation by the fossil fuels, building materials, textile industries, the continuous production procedure and energy consumption procedure happen simultaneously.
The energy flow should be analyzed from the same level coupling with other three flows, i.e., the material flow, information flow and emission flow.
International Journal of Production Research, 2007, 45(8): 1763-1789.
Introduction In the development process of industrialization, the typical high energy-intensive industries, represented by chemical, metallurgy, oil refining, and electrical power generation by the fossil fuels, building materials, textile industries, etc., are consuming the main energy resources around the world.
Based on common characteristic analysis for production of the factories in typical continuous industries with great energy-consumption and great emission, represented by chemical, metallurgy, oil refining, and electrical power generation by the fossil fuels, building materials, textile industries, the continuous production procedure and energy consumption procedure happen simultaneously.
The energy flow should be analyzed from the same level coupling with other three flows, i.e., the material flow, information flow and emission flow.
International Journal of Production Research, 2007, 45(8): 1763-1789.
Online since: June 2014
Authors: Lian Feng Xu, Yong Chun Wu
Some scholars believe that the development of science and technology affect human survival homes, science and technology is a double-edged sword, the achievements of the application process changed the natural material cycle which cause some point imbalance and environmental problems. other view is that the human production mode has great effect on the surrounding environment, In order to pursue the interests human have adopted the destructive mode of production, the pollution events occur frequently, the ecological environment worsening, which cause serious damage to the human survival and development.
In the discussion on causes of environmental problems, negative effects of consumption on the ecological environment are widely ignored due to the high degree of personal freedom and private concealment, which can promote economic and social development, increase the employment rate, bring enormous material wealth to mankind.
Third, the rapid growth of symbol consumption demand With the development of social productivity, consumption is more and more changed from the reality, the satisfaction of material to a kind of psychological satisfaction.
The product quality, grade, physical property, services and other material (functional) traits tend to fade out of sight of the consumer .Because of highly developed scientific and technological level, the frequency of product technology innovation, increasingly improving marketing skills ,people pay more attention on meaning (symbolic) of certain products than functional product.
[2] Lu Jia-rui Consumption and Sustainable Development in Vision of Globe Field Journal of XiangtanUniversity (Philosophy and Social Sciences) Mar.2008(20-24) (in Chinese).
In the discussion on causes of environmental problems, negative effects of consumption on the ecological environment are widely ignored due to the high degree of personal freedom and private concealment, which can promote economic and social development, increase the employment rate, bring enormous material wealth to mankind.
Third, the rapid growth of symbol consumption demand With the development of social productivity, consumption is more and more changed from the reality, the satisfaction of material to a kind of psychological satisfaction.
The product quality, grade, physical property, services and other material (functional) traits tend to fade out of sight of the consumer .Because of highly developed scientific and technological level, the frequency of product technology innovation, increasingly improving marketing skills ,people pay more attention on meaning (symbolic) of certain products than functional product.
[2] Lu Jia-rui Consumption and Sustainable Development in Vision of Globe Field Journal of XiangtanUniversity (Philosophy and Social Sciences) Mar.2008(20-24) (in Chinese).
Online since: December 2011
Authors: Yan Fei Tang, Lei Yin, Yi Niu, Jian Wang
Experiment Study on Aviation Kerosene’s Flash Point Temperature of Low Pressure Environment
Yan Fei Tang1,a, Lei Yin2,b, Yi Niu1,c, Jian Wang1,d*
1State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei,230026, China;
2PSE Technology (Shandong) Corporation EHS Dept, Jinan, 250100, China
atyfustc@mail.ustc.edu.cn, bylcumt@163.com, cniuyi@mail.ustc.edu.cn, d*wangj@ustc.edu.cn
Keywords: Aviation Kerosene; flash point ; pressure; mass ratio; lower explosion limit
Abstract.
Acknowledgements This work was financially supported by National Natural Science Foundation of China------Research on Thermal Properties for Fire Prevention Under Low Pressure and Low Oxygen Concentration in Chinese(51036007/E060408).
Determination of Flash Point in Air and Pure Oxygen using an Equilibrium Closed Bomb Apparatus, Journal of Hazardous Materials A102(2003)155-165
Estimation of Flash Point, Fire and Materials.1988,12,127-131
Acknowledgements This work was financially supported by National Natural Science Foundation of China------Research on Thermal Properties for Fire Prevention Under Low Pressure and Low Oxygen Concentration in Chinese(51036007/E060408).
Determination of Flash Point in Air and Pure Oxygen using an Equilibrium Closed Bomb Apparatus, Journal of Hazardous Materials A102(2003)155-165
Estimation of Flash Point, Fire and Materials.1988,12,127-131
Online since: October 2006
Authors: C.C. Chiang, C.S. Shin
It may be embedded inside a composite material [5] and
situated close to the internal defects.
The material along the gage length of the FBG-I may have been divided into several piecewise regions.
Conclusions Embedded FBGs in composite materials allows continuous on-line monitoring fatigue damage.
Meltz: Journal of Lightwave Technology, Vol.15 (1997), p.1263-1276
Takeda: Composites Science and Technology, Vol.62 (2002), p.951-958. 0.3mm 6.3mm (a) (b)
The material along the gage length of the FBG-I may have been divided into several piecewise regions.
Conclusions Embedded FBGs in composite materials allows continuous on-line monitoring fatigue damage.
Meltz: Journal of Lightwave Technology, Vol.15 (1997), p.1263-1276
Takeda: Composites Science and Technology, Vol.62 (2002), p.951-958. 0.3mm 6.3mm (a) (b)
Online since: November 2010
Authors: Bing Hai Lv, Yong Liang Hu, Ju Long Yuan, Xin Ma, Qian Fa Deng
Acknowledgement
This topic of research is supported by the Natural Science Foundation of China.
(Grant No. 50975085) and supported by Science and Technology Department of Zhejiang Province (Grant No. 2009C31019).
Yu: Advanced Materials Research, Vol. 69-70 (2009), pp. 714-718
Wang: Key Engineering Materials, Vol. 416 (2009), pp. 205-209
Hart: International Journal of Rock Mechanics and Mining Sciences, Vol. 40 (2003), pp. 1089-1097.
(Grant No. 50975085) and supported by Science and Technology Department of Zhejiang Province (Grant No. 2009C31019).
Yu: Advanced Materials Research, Vol. 69-70 (2009), pp. 714-718
Wang: Key Engineering Materials, Vol. 416 (2009), pp. 205-209
Hart: International Journal of Rock Mechanics and Mining Sciences, Vol. 40 (2003), pp. 1089-1097.
Online since: September 2013
Authors: Da Peng Fan, Shi Xun Fan, Hua Liu, Yong Hua Peng, Lian Chao Zhang
What’s worth attention was that the current-carrying coils would generate another magnetic field which affected the one produced by the permanent magnet materials of the actuators .
The permanent magnet material works more near to the MME point.
Zong: Mechanical Science and Technology, Vol. 22 (2003) No.2, pp.241-244 (In Chinese)
Feng: Journal of North University of China, Vol. 27 (2006) No.3, pp.224-228 (In Chinese)
Ma: Optimization Method and Its Matlab Programming (Science Press, China 2010), pp.1-11 (In Chinese)
The permanent magnet material works more near to the MME point.
Zong: Mechanical Science and Technology, Vol. 22 (2003) No.2, pp.241-244 (In Chinese)
Feng: Journal of North University of China, Vol. 27 (2006) No.3, pp.224-228 (In Chinese)
Ma: Optimization Method and Its Matlab Programming (Science Press, China 2010), pp.1-11 (In Chinese)
Online since: September 2014
Authors: Jian Ping Shi, Bo Lin He, Ying Xia Yu, Zhi Jun Zhang
Experiments
Experimental materials.
The test material is P355NL1 which is frequently used to make bogie structure, the chemical composition and mechanical properties was shown in Table 1 and Table 2.
The weld joint was welded by GMAW for both sides welding, and the welding material is EN440 G4Si1.
Acknowledgements The work is supported by the National Nature Science Foundation of China(51365014, 51065010) and the Nature Science Foundation of Jiangxi Province (2009GZC0016).
Joo: International Journal of Automotive Technology,Vol.9(2008), p.95 [3]WU Huichao, WU Pingbo: International Conference on Transportation Engineering, Chengdu, 2009, p.1831 [4]Weihua Zhang, PingboWu, XuejieWu, et al: Engineering Failure Analysis,Vol.13(2006), p.427 [5] Gleiter H: ActaMaterialia, Vol.48,(2000), p.1 [6]Wang Dongpo, Zhou Da: Journa l of Tianjin University, Vol. 40(2007), p.623
The test material is P355NL1 which is frequently used to make bogie structure, the chemical composition and mechanical properties was shown in Table 1 and Table 2.
The weld joint was welded by GMAW for both sides welding, and the welding material is EN440 G4Si1.
Acknowledgements The work is supported by the National Nature Science Foundation of China(51365014, 51065010) and the Nature Science Foundation of Jiangxi Province (2009GZC0016).
Joo: International Journal of Automotive Technology,Vol.9(2008), p.95 [3]WU Huichao, WU Pingbo: International Conference on Transportation Engineering, Chengdu, 2009, p.1831 [4]Weihua Zhang, PingboWu, XuejieWu, et al: Engineering Failure Analysis,Vol.13(2006), p.427 [5] Gleiter H: ActaMaterialia, Vol.48,(2000), p.1 [6]Wang Dongpo, Zhou Da: Journa l of Tianjin University, Vol. 40(2007), p.623
Online since: November 2013
Authors: Qing Gao, Xiao Lin Zhu, Ming Yu, You Tang Wang
Numerical Calculation Method and Study for Frost Heave Deformation of Ground Heat Exchanger Pipe
Xiaolin Zhu 1, 2, a, Qing Gao 1, 2, b, Ming Yu 3, c, Youtang Wang 1, 2, d
1 State Key Lab. of Automotive Simulation and Control, Jilin University, Changchun 130025, China
2 Department of Thermal Energy Engineering, Jilin University, Changchun 130025, China
3 School of Materials Science and Engineering, Jilin University, Changchun 130025, China
azxl_good2005@163.com, bgaoqing@jlu.edu.cn, c yuming@jlu.edu.cn ,d wangyoutangk@163.com
Keywords: Ground heat exchanger pipe, Deformation, Frost heave, Numerical calculation method.
Marita Allan [2] proposed the study of thermal stresses, deformations and thermal fractures of backfill material, which would influence the heat transfer.
In order to simplify the problem and facilitates numerical calculation, the calculation based on the following assumptions: (1) Unfrozen soil is saturation state and frozen soil is as elastomer; (2) The material property is isotropic, soil particles does not occur deformation; (3) Volume change of water in the freezing process is ignored; (4) Influence of initial stress is ignored.
Acknowledgements The authors gratefully acknowledge the financial support from the NSFC (National Natural Science Foundation of China) under the grant No. 41072198.
Brookhaven National Laboratory (1997) [3] Anna Gabrielsson, Marti Lehtmets: Report No53, Swedish Geotechnical Institute (1997) [4] Michalowski RL: Cold Regions Science and Technology, Vol.1 (1993), p. 47 [5] Michalowski RL, Ming Zhu: Numerical and Analytical Methods in Geomechanics, Vol.30 (2006), p.703 [6] Zhu Xiangrong,Wang Jinchang:Journal of Rock and Soil Mechanics, Vol.25 (2004),p.144
Marita Allan [2] proposed the study of thermal stresses, deformations and thermal fractures of backfill material, which would influence the heat transfer.
In order to simplify the problem and facilitates numerical calculation, the calculation based on the following assumptions: (1) Unfrozen soil is saturation state and frozen soil is as elastomer; (2) The material property is isotropic, soil particles does not occur deformation; (3) Volume change of water in the freezing process is ignored; (4) Influence of initial stress is ignored.
Acknowledgements The authors gratefully acknowledge the financial support from the NSFC (National Natural Science Foundation of China) under the grant No. 41072198.
Brookhaven National Laboratory (1997) [3] Anna Gabrielsson, Marti Lehtmets: Report No53, Swedish Geotechnical Institute (1997) [4] Michalowski RL: Cold Regions Science and Technology, Vol.1 (1993), p. 47 [5] Michalowski RL, Ming Zhu: Numerical and Analytical Methods in Geomechanics, Vol.30 (2006), p.703 [6] Zhu Xiangrong,Wang Jinchang:Journal of Rock and Soil Mechanics, Vol.25 (2004),p.144