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Online since: January 2010
Authors: Mohammad Jahazi, Michael A. Gharghouri, P. Doran, Laurent Dubourg, Simon Larose
All other key welding parameters were kept constant.
Different stress-free scattering angles (2θ0), acquired from small coupons extracted from a component after all the measurements were done, were used for the weld and base plate materials.
Jahazi, Materials Evaluation, 66 (4) (2008) 382-386
Chen, Materials Science and Engineering A, 403 (1-2) (2005) 340-348
Sutton, Journal of Materials Processing Technology, 174 (1-3) (2006) 195-203.
Different stress-free scattering angles (2θ0), acquired from small coupons extracted from a component after all the measurements were done, were used for the weld and base plate materials.
Jahazi, Materials Evaluation, 66 (4) (2008) 382-386
Chen, Materials Science and Engineering A, 403 (1-2) (2005) 340-348
Sutton, Journal of Materials Processing Technology, 174 (1-3) (2006) 195-203.
Online since: September 2020
Authors: Haia Aldosari
Materials
In this study, two widely used polymer materials were used, namely metallocene linear low density polyethylene (m-LLDPE, hereafter referred to as PE) and polypropylene homopolymer (PP), which were obtained from a commercial supplier (RESINEX).
Key physical data for each polymer are given in Table. 1.
Hay, Phase Separation in Polypropylene and Metallocene, Polymer engineering and science. (2006)889-595
Deuri, A Short Review on Rubber / Clay Nanocomposites With Emphasis on Mechanical Properties, Engineering. 47(2007) 21–25
[31] F, Campbell, Manufacturing Technology for Aerospace Structural Materials, London: Elsevier Ltd (2006)
Key physical data for each polymer are given in Table. 1.
Hay, Phase Separation in Polypropylene and Metallocene, Polymer engineering and science. (2006)889-595
Deuri, A Short Review on Rubber / Clay Nanocomposites With Emphasis on Mechanical Properties, Engineering. 47(2007) 21–25
[31] F, Campbell, Manufacturing Technology for Aerospace Structural Materials, London: Elsevier Ltd (2006)
Online since: September 2023
Authors: Salah Larbi, Billal Belfegas, Tahar Tayebi
Hosien and Selim [7] worked on the effects of the geometric parameters of the solar chimney, weather conditions, and alternative outdoor cover materials on the performance of the solar chimney used for the natural ventilation of closed enclosures.
Selim, Effects of the geometrical and operational parameters and alternative outer cover materials on the performance of solar chimney used for natural ventilation, Energy and Buildings. 138 (2017) 355-367
[12] Qin, Di, Jiang Liu, and Guoqiang Zhang, A novel solar-geothermal system integrated with earth-to-air heat exchanger and solar air heater with phase change material—numerical modelling, experimental calibration and parametrical analysis, Journal of Building Engineering. 35 (2021) 101971
[13] Alimi, Sonia, et al., Performance investigation of an original hybrid solar façade system used for HDH desalination and building natural ventilation, Journal of Building Engineering. 42 (2021) 102515
[14] Soto, Andrés, et al., Simulation and experimental study of residential building with north side wind tower assisted by solar chimneys, Journal of Building Engineering. 43 (2021) 102562
Selim, Effects of the geometrical and operational parameters and alternative outer cover materials on the performance of solar chimney used for natural ventilation, Energy and Buildings. 138 (2017) 355-367
[12] Qin, Di, Jiang Liu, and Guoqiang Zhang, A novel solar-geothermal system integrated with earth-to-air heat exchanger and solar air heater with phase change material—numerical modelling, experimental calibration and parametrical analysis, Journal of Building Engineering. 35 (2021) 101971
[13] Alimi, Sonia, et al., Performance investigation of an original hybrid solar façade system used for HDH desalination and building natural ventilation, Journal of Building Engineering. 42 (2021) 102515
[14] Soto, Andrés, et al., Simulation and experimental study of residential building with north side wind tower assisted by solar chimneys, Journal of Building Engineering. 43 (2021) 102562
Online since: April 2019
Authors: Mohd Shamshuddin, Thirupathi Thumma, S.R. Mishra
Introduction
From last few decades researchers have keen interest on boundary layer flow due to its great impact in engineering applications; these are particularly, production of papers, reduction of drag, storage of grain, etc.
Gradients “of the key variables at the plate surface are important for engineering design considerations, in particular in materials processing.
Evidently the benefit of high temperature processing of materials is confirmed with radiative transfer contribution.
Series: Material Sci.
Ramana Reddy, Radiation and heat source effect on MHD flow over a permeable stretching sheet through porous stratum with chemical reaction, Multidiscipline Modelling in Materials and Structures. (2018).
Gradients “of the key variables at the plate surface are important for engineering design considerations, in particular in materials processing.
Evidently the benefit of high temperature processing of materials is confirmed with radiative transfer contribution.
Series: Material Sci.
Ramana Reddy, Radiation and heat source effect on MHD flow over a permeable stretching sheet through porous stratum with chemical reaction, Multidiscipline Modelling in Materials and Structures. (2018).
Online since: January 2006
Authors: Rokuro Tomita, Hiroshi Hirao, Takashi Tochigi, Takamiki Tamashige
Shortages of landfill sites are predominantly accounted for by the difficulty in
constructing landfill sites due to community's irremovable anxiety about these harmful materials to
ooze or scatter from landfill sites.
The sum of these two (bottom ash and dechlorinated fly ash) can substitute for natural raw materials by up to 3 %.
Based on the chemical analysis of the stirred incineration ash, the rest of raw materials, normally chemical compositions of which have already been known, are accordingly weighed.
Two Flush Blenders are arranged and are alternately assigned for mixing raw materials and supplying them to the following process.
Approximately 28,000 t of industrial wastes, including incineration residues, will also be utilized annually in the process as raw materials and fuels.
The sum of these two (bottom ash and dechlorinated fly ash) can substitute for natural raw materials by up to 3 %.
Based on the chemical analysis of the stirred incineration ash, the rest of raw materials, normally chemical compositions of which have already been known, are accordingly weighed.
Two Flush Blenders are arranged and are alternately assigned for mixing raw materials and supplying them to the following process.
Approximately 28,000 t of industrial wastes, including incineration residues, will also be utilized annually in the process as raw materials and fuels.
Online since: April 2012
Authors: Ralph W.L. Ip, Elvis Iok Cheong Wan
Wan2,b
1FRCAMS, The University of Hong Kong, Pokfulam Road, Hong Kong
2Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, HK
aralphip@hkucc.hku.hk, bh0605993@hku.hk
Keywords: drying, heat/mass transfer, diffusion, porous type fabric.
Introduction The use of convective heat transfer principles [1,2] to define the performance of a drying process is more frequently than heat conduction and radiation theories, particularly for the descriptions of textile material drying characteristics.
In many kinds of textile materials, porous type fabrics are typical samples to be studied intensively in this study.
However, V is also a key factor in a drying process that could be empirically determined using Linear regression methods.
Materials of the tested fabric samples are cotton and woven, they have different porous size.
Introduction The use of convective heat transfer principles [1,2] to define the performance of a drying process is more frequently than heat conduction and radiation theories, particularly for the descriptions of textile material drying characteristics.
In many kinds of textile materials, porous type fabrics are typical samples to be studied intensively in this study.
However, V is also a key factor in a drying process that could be empirically determined using Linear regression methods.
Materials of the tested fabric samples are cotton and woven, they have different porous size.
Online since: May 2012
Authors: Xiao Li Yan
Types of Hidden Safety Trouble for Existing Buildings in Shanghai and Solving Measures
Yan Xiaoli
School of Management studies
Shanghai Univ. of Engineering Science,
Shanghai, China
Keywords:Types of Hidden Safety Trouble; Existing Buildings; Solving Measure
Abstract—In a city like Shanghai, where large sum of existing buildings with lots of existed hidden safety trouble exists, the need to identify and solve the safety problem of the existing Buildings to ensure the safety of the citizens’ lives and properties has become a vital task.
For they have lasted longtime and the materials and structure have been aging, the ability of carrying capacity has decreased largely.
While the aseismatic abilities of the buildings in the suburb area are much worse than in the key areas.
Some existing buildings have mosaic, granite and bricks as the external wall and after long last-time, these materials become flexible and will fall down once suffered from some outside force, which is very dangerous.
This method can reduce the manpower, material resources and financial resources and improve the work efficiency, c) Carry out the investigation work with Shanghai’s annual typhoon flood control, anti-snow and antifreeze work F.
For they have lasted longtime and the materials and structure have been aging, the ability of carrying capacity has decreased largely.
While the aseismatic abilities of the buildings in the suburb area are much worse than in the key areas.
Some existing buildings have mosaic, granite and bricks as the external wall and after long last-time, these materials become flexible and will fall down once suffered from some outside force, which is very dangerous.
This method can reduce the manpower, material resources and financial resources and improve the work efficiency, c) Carry out the investigation work with Shanghai’s annual typhoon flood control, anti-snow and antifreeze work F.
Online since: August 2011
Authors: Huan Yi, Jin Feng Chen
Self-assembly of flower-like CeO2 microspheres via a template-free synthetic approach and its use as support in enhanced CO and benzene oxidation activity
Jinfeng Chen1,a,, Huan Yi2,b
1School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, PR China
2Xi'an Center of Geological Survey, Xi’an 710054, PR China
achenjinfeng@whut.edu.cn, bjoy200299@163.com
Keywords: ceria, microsphere, self-assembly, CO and benzene oxidation, porous structure
Abstract.
Recently, micro and nanostructured CeO2 materials have generated a lot of interest due to their unique physical and chemical properties.
Porous flower-like CeO2 microsphere prepared by a novel hydrothermal method via graft copolymerization reaction was proved a promising support material for catalysts used in steam reforming ethanol for producing H2 [11].
The isotherm of the Au/CeO2-f and Au/CeO2-p is of typical Ⅳ classification and exhibits clear H3-type hysteresis loop, which is characteristic of mesoporous materials.
In this work, the precursor concentration plays a key role in the synthesis of ceria microspheres.
Recently, micro and nanostructured CeO2 materials have generated a lot of interest due to their unique physical and chemical properties.
Porous flower-like CeO2 microsphere prepared by a novel hydrothermal method via graft copolymerization reaction was proved a promising support material for catalysts used in steam reforming ethanol for producing H2 [11].
The isotherm of the Au/CeO2-f and Au/CeO2-p is of typical Ⅳ classification and exhibits clear H3-type hysteresis loop, which is characteristic of mesoporous materials.
In this work, the precursor concentration plays a key role in the synthesis of ceria microspheres.
Online since: April 2011
Authors: Ronny Sczech, Steffen Howitz, Michael Mertig
PDMS remains one of the most popular materials used to fabricate micro- and nanofluidic structures [15].
It is relatively inexpensive, easily and quickly molded, nontoxic, and transparent PDMS in combination with high-resolution lithography are capable to fulfill the needs for a material allowing the observation of single molecules inside nanochannels.
Thus, we used a new material, hard PDMS [16]; which is glass like and has a Young’s Modulus three times greater than the soft one.
PDMS from DowCorning Corporation (Sylgard 184) has been chosen as a soft mold material.
These studies in microchannels are of importance from the physics as well as from the engineering perspective, because cognition of the Brownian dynamics of constrained and confined molecules is likewise critical for the device design.
It is relatively inexpensive, easily and quickly molded, nontoxic, and transparent PDMS in combination with high-resolution lithography are capable to fulfill the needs for a material allowing the observation of single molecules inside nanochannels.
Thus, we used a new material, hard PDMS [16]; which is glass like and has a Young’s Modulus three times greater than the soft one.
PDMS from DowCorning Corporation (Sylgard 184) has been chosen as a soft mold material.
These studies in microchannels are of importance from the physics as well as from the engineering perspective, because cognition of the Brownian dynamics of constrained and confined molecules is likewise critical for the device design.
Online since: September 2013
Authors: Takeshi Tanaka
TiO2 (0.18-μm grain size) is an anatase material (Ishihara Sangyou Co.).
Tanaka, Key Engineering Materials, 291-292 (2005) 343
Tanaka, Advanced Materials Research, 76-78 (2009) 337
Tanaka, Key Engineering Materials, 291-292 (2005) 343
Tanaka, Advanced Materials Research, 76-78 (2009) 337