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Online since: November 2017
Authors: Messaoud Bourezane
The material properties, Young modulus and Poisson’ ratio are 1000, 0.3 respectively.
Journal of Structural Engineering Volume 124, Issue 6 (1998)704-711
International Journal of Mechanical Sciences, Volume 14, Issue 3 (1972)171-183
International Journal for Numerical Methods in Engineering.
International Journal for Numerical Methods in Engineering.
Journal of Structural Engineering Volume 124, Issue 6 (1998)704-711
International Journal of Mechanical Sciences, Volume 14, Issue 3 (1972)171-183
International Journal for Numerical Methods in Engineering.
International Journal for Numerical Methods in Engineering.
Online since: February 2011
Authors: Lin Na Suo, Xiang Yang Sun, Su Yan Li
Materials and methods
Components and Medium Formulation.
Before being charred, materials were cut into 1.0 to 2.0-cm particles and air-dried.
After charring, all materials were dipped in room-temperature water for 2 h with a ratio (by volume) of materials to water of 1:2.
The charred materials were then air-dried and passed through a 2-cm screen.
Root mass of compost-mixed materials (C, C+CHG) were lower than those in charred materials and peat (Fig. 1).
Before being charred, materials were cut into 1.0 to 2.0-cm particles and air-dried.
After charring, all materials were dipped in room-temperature water for 2 h with a ratio (by volume) of materials to water of 1:2.
The charred materials were then air-dried and passed through a 2-cm screen.
Root mass of compost-mixed materials (C, C+CHG) were lower than those in charred materials and peat (Fig. 1).
Online since: April 2024
Authors: K. Jagadeeswaraiah, M. Malyaadri
Experimental
2.1 Materials and Methods
TiO2 (P25, Degussa AG, Germany; anatase to rutile ratio 4:1), sodium and potassium hydroxide pellets (S.D.
TPD of CO2 profiles of (a) KTNT (b) NaTNT nanotubes 3.2 Transesterification of glycerol over titania nanotube-based materials The activity of the catalysts was evaluated for the synthesis of glycerol carbonate from glycerol with dimethyl carbonate and the results are presented in Table 1.
Dhabhai et al., Purification of glycerol and its conversion to value-added chemicals: A review, Separation Science and Technology 58(2023) 1383-1402
Dong et al., Ordered mesoporous BaCO3/C-catalyzed synthesis of glycerol carbonate from glycerol and dimethyl carbonate, Science China Chemistry 58 (2015) 708-715
Journal of Cleaner Production 315 (2021) 127860.
TPD of CO2 profiles of (a) KTNT (b) NaTNT nanotubes 3.2 Transesterification of glycerol over titania nanotube-based materials The activity of the catalysts was evaluated for the synthesis of glycerol carbonate from glycerol with dimethyl carbonate and the results are presented in Table 1.
Dhabhai et al., Purification of glycerol and its conversion to value-added chemicals: A review, Separation Science and Technology 58(2023) 1383-1402
Dong et al., Ordered mesoporous BaCO3/C-catalyzed synthesis of glycerol carbonate from glycerol and dimethyl carbonate, Science China Chemistry 58 (2015) 708-715
Journal of Cleaner Production 315 (2021) 127860.
Online since: January 2014
Authors: Xiang Lilan Zhang, Ji Ping Sun, Xu Hui Huang, Zhi Gang Luo
A Novel Weighted Dynamic Time Warping for Light Weight Speaker-Dependent Speech Recognition in Noisy and Bad Recording Conditions
Xianglilan Zhang1, a, Jiping Sun2,b , Xuhui Huang3,c and Zhigang Luo4,b
1National Laboratory for parallel and distributed processing, School of Computer Science, National University of Defense Technology, Changsha, Hunan, 410073, China;
2David R.
Cheriton School of Computer Science, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada; 2Voice Enabling Systems Technology, Waterloo, Ontario, N2L 6N8, Canada; 3National Laboratory for parallel and distributed processing, School of Computer Science, National University of Defense Technology, Changsha, Hunan, 410073, China; 4National Laboratory for parallel and distributed processing, School of Computer Science, National University of Defense Technology, Changsha, Hunan, 410073, China.
Lightweight speaker-dependent (SD) automatic speech recognition (ASR) is a promising solution for the problems of possibility of disclosing personal privacy and difficulty of obtaining training material for many seldom used English words and (often non-English) names.
Chapaneri, "Spoken digits recognition using weighted MFCC and improved features for dynamic time warping," International Journal of Computer Application, vol. 40, no. 3, pp. 6-12, 2012
Li, "Merge-weighted Dynamic Time Warping for Language-Independent Speaker-Dependent Embedded Speech Recognition," Journal of Computer Sicence and Techonology, 2013 (submitted)
Cheriton School of Computer Science, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada; 2Voice Enabling Systems Technology, Waterloo, Ontario, N2L 6N8, Canada; 3National Laboratory for parallel and distributed processing, School of Computer Science, National University of Defense Technology, Changsha, Hunan, 410073, China; 4National Laboratory for parallel and distributed processing, School of Computer Science, National University of Defense Technology, Changsha, Hunan, 410073, China.
Lightweight speaker-dependent (SD) automatic speech recognition (ASR) is a promising solution for the problems of possibility of disclosing personal privacy and difficulty of obtaining training material for many seldom used English words and (often non-English) names.
Chapaneri, "Spoken digits recognition using weighted MFCC and improved features for dynamic time warping," International Journal of Computer Application, vol. 40, no. 3, pp. 6-12, 2012
Li, "Merge-weighted Dynamic Time Warping for Language-Independent Speaker-Dependent Embedded Speech Recognition," Journal of Computer Sicence and Techonology, 2013 (submitted)
Online since: July 2019
Authors: Shen Yung Lin, Bing Hsueh Yang
Combined with the application of these two enhanced methods, the cutting of such materials has a very obvious effect on the improvement of surface roughness, the reduction of cutting force and the extension of tool life.
Laser-assisted machining (LAM) is a kind of thermally assisted machining, in which the material is preheated by a laser spot prior to the workpiece material removal, and the material is subsequently removed plastically by a cutting-tool as shown in Fig. 2.
LAM has been well known as a noncontact machining method and has been applied to various difficult-to-cut materials such as hardened and brittle material, i.e., titanium alloys, super-alloys, structural ceramics, etc.
Joshi, 2012, Analysis of machined surface quality in a single-pass of ball-end milling on Inconel 718, Journal of Manufacturing Processes, Vol.14, pp.257-268
Silberschmidt, 2006, Analysis of material response to ultrasonic vibration loading in turning Inconel 718, Materials Science and Engineering A, Vol.424, pp.318-325
Laser-assisted machining (LAM) is a kind of thermally assisted machining, in which the material is preheated by a laser spot prior to the workpiece material removal, and the material is subsequently removed plastically by a cutting-tool as shown in Fig. 2.
LAM has been well known as a noncontact machining method and has been applied to various difficult-to-cut materials such as hardened and brittle material, i.e., titanium alloys, super-alloys, structural ceramics, etc.
Joshi, 2012, Analysis of machined surface quality in a single-pass of ball-end milling on Inconel 718, Journal of Manufacturing Processes, Vol.14, pp.257-268
Silberschmidt, 2006, Analysis of material response to ultrasonic vibration loading in turning Inconel 718, Materials Science and Engineering A, Vol.424, pp.318-325
Online since: September 2018
Authors: Brahim Belkessa, Pavol Hvizdoš, Djamel Miroud, Richard Sedlák, Billel Cheniti, Djilali Allou, N. Ouali
Box 64, Chéraga, Algeria
3Institute of Materials Research, Slovak Academy of Sciences,
Watsonova 47, 04353 Kosice, Slovak Republic.
Experimental Methods The hard material used in this study is WC-10% Co with 13 mm diameter, 9 mm in thickness and AISI 1020 steel with 0.21% of carbon, the main compositions of the base materials were shown in table 1.
Table 1: Chemical compositions of base materials and filler alloy used in this study.
The filler alloy has a good wettability and fills up the gap between the base materials (WC-Co and the AISI 1020 steel).
Journal of Refractory Metals and Hard Materials Fracture toughness of cemented carbides : Testing method and microstructural effects,” 2014
Experimental Methods The hard material used in this study is WC-10% Co with 13 mm diameter, 9 mm in thickness and AISI 1020 steel with 0.21% of carbon, the main compositions of the base materials were shown in table 1.
Table 1: Chemical compositions of base materials and filler alloy used in this study.
The filler alloy has a good wettability and fills up the gap between the base materials (WC-Co and the AISI 1020 steel).
Journal of Refractory Metals and Hard Materials Fracture toughness of cemented carbides : Testing method and microstructural effects,” 2014
Online since: May 2011
Authors: Lu Guang Song, Wei Sun, Yun Sheng Zhang, Jian Ming Gao
Influence of GGBS on Time Dependent Chloride Diffusion Coefficient of HPC
Luguang Songa, Wei Sunb, Jianming Gaoc and Yunsheng Zhangd
College of Material Science and Engineering, Jiangsu Key Laboratory of Construction Materials, Southeast University, Nanjing 211189
asnglg@163.com, bsunwei@seu.edu.cn cjmgao@seu.edu.cn dzhangys279@163.com
Keywords: Concrete;GGBS;Apparent Diffusion Coefficient;Chloride;HPC;Time Dependency
Abstract.
Experimental program Materials.
And it leads to no more cementitious materials to hydrate in early ages.
Saraswathy: Journal of Hazardous Materials Vol. 138(2006), p. 226-233 [2] M.
Alonso: Advanced Cement Based Materials Vol. 6(1997), p. 39-44 [11] S.
Experimental program Materials.
And it leads to no more cementitious materials to hydrate in early ages.
Saraswathy: Journal of Hazardous Materials Vol. 138(2006), p. 226-233 [2] M.
Alonso: Advanced Cement Based Materials Vol. 6(1997), p. 39-44 [11] S.
Online since: July 2016
Authors: Przemysław Tyczewski, Jarosław Chmiel
Tests results
Test parameters
Applied test materials
load 150 N
roller material – grey cast iron GJL-200
rotational speed 500 rpm
block material PA6 (AlCu4MgSi)
test duration1200 s
polyester oil (POE) Planetelf ACD 32
temperature 298 K, pressure 0.62 MPa
refrigerant R134a
Results and discussion
The Fig. 3 presents the comparison of the surface of PA6 (block) after testing with the new one.
Conry: Scuffing of cast iron and Al390-T6 materials used in compressor applications, Wear, 260(7-8), (2006), p. 735-744
[8] Hong-Gyu Jeon, Se-Doo Oh, Young-Ze Lee: Friction and wear of the lubricated vane and roller materials in a carbon dioxide refrigerant, Wear, 267(5-8), (2009), p. 1252-1256
Prata, A two-phase flow approach to cavitation modelling in journal bearings, Tribology Letters, Vol: 21, Issue: 3, March (2006), pp. 233 – 244
Maciąg, The role of hydrogen in cavitation fracture of steel 45 in lubricants, Materials Science, nr 5/ (2009), p. 651-654
Conry: Scuffing of cast iron and Al390-T6 materials used in compressor applications, Wear, 260(7-8), (2006), p. 735-744
[8] Hong-Gyu Jeon, Se-Doo Oh, Young-Ze Lee: Friction and wear of the lubricated vane and roller materials in a carbon dioxide refrigerant, Wear, 267(5-8), (2009), p. 1252-1256
Prata, A two-phase flow approach to cavitation modelling in journal bearings, Tribology Letters, Vol: 21, Issue: 3, March (2006), pp. 233 – 244
Maciąg, The role of hydrogen in cavitation fracture of steel 45 in lubricants, Materials Science, nr 5/ (2009), p. 651-654
Online since: October 2010
Authors: Damir Lazarević, Josip Atalić, Joško Krolo, Mario Uroš, Marta Šavor
The material such as lead
enables small rotations and protects connected areas from large stress concentrations.
Such precise finishing is well suited for transmission of vertical load with rather uniform compression stresses, what is beneficial for traditional materials.
The material such as lead will enable small rotations and will shield connected areas from large stress concentrations.
[3] GiD, The universal, adaptive and user friendly pre and post processing system for computer analysis in science and engineering, Reference Manual Version 6, CIMNE, 2000
International Journal of Architectural Heritage, 2(1), 1-24
Such precise finishing is well suited for transmission of vertical load with rather uniform compression stresses, what is beneficial for traditional materials.
The material such as lead will enable small rotations and will shield connected areas from large stress concentrations.
[3] GiD, The universal, adaptive and user friendly pre and post processing system for computer analysis in science and engineering, Reference Manual Version 6, CIMNE, 2000
International Journal of Architectural Heritage, 2(1), 1-24
Online since: May 2012
Authors: Na Jia, Jun Hua, Jie Song, Bing Ge
It has been applied to the fields of materials, energy, construction, waste management and so on, to evaluate the environmental impact of materials or products in the whole life, include the process of manufacture, use, recycle, abandon and disposition[2,3,4].
Analysis showed that with different equipment matches, materials and energy flow of the system is different.
And the evaluation index system of wood fiber preparation in line with our specific environmental behavior is determined by reference to the Life Cycle Assessment study abroad and the research on consumption of resources, materials, chemical industry in china.
Different materials of each category will be transformed and aggregated into one single unit, with environmental load index method, and got the comprehensive environmental load of each impact type.
Acknowledgements This work is financially supported by the National Natural Science Foundation (31070499/C160302).
Analysis showed that with different equipment matches, materials and energy flow of the system is different.
And the evaluation index system of wood fiber preparation in line with our specific environmental behavior is determined by reference to the Life Cycle Assessment study abroad and the research on consumption of resources, materials, chemical industry in china.
Different materials of each category will be transformed and aggregated into one single unit, with environmental load index method, and got the comprehensive environmental load of each impact type.
Acknowledgements This work is financially supported by the National Natural Science Foundation (31070499/C160302).