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Online since: July 2015
Authors: S.I. Yang, Tien Chiu Hsu
Yangb
Department of Powder Mechanical Engineering, National Formosa University, Taiwan
a pcm1020@gmail.com, b ianyang@nfu.edu.tw
Keywords: coal-water slurry, viscosity, gasification, spray.
As viscosity is a key factor for atomization characteristics, we used silicon oils of different viscosity as the testing liquids, to study the effect of different atomization parameters on the atomization characteristics.
At the output end of the atomizer, the velocity is affected by the grid points more; as the axial distance increases, the difference is smaller.
In addition to laser parameters and seeding properties, the sensitivity of PIV measurement depends on analytic criteria as well.
At radial velocity, high viscosity fluid was less affected by the changes of the GLR and the position. 3.
As viscosity is a key factor for atomization characteristics, we used silicon oils of different viscosity as the testing liquids, to study the effect of different atomization parameters on the atomization characteristics.
At the output end of the atomizer, the velocity is affected by the grid points more; as the axial distance increases, the difference is smaller.
In addition to laser parameters and seeding properties, the sensitivity of PIV measurement depends on analytic criteria as well.
At radial velocity, high viscosity fluid was less affected by the changes of the GLR and the position. 3.
Online since: March 2020
Authors: Ikram El Abbassi, Cheikh Sidi Ethmane Kane, A. Moumen Darcherif, Mamoudou Ndongo, Labouda Ba
Polymers such as polyester resins and polypropylenes were added to the fibers to strengthen their mechanical properties [16].
The study of the structural and mechanical properties of Typha was carried out by J.
Slah, Study of Structure and Properties of Tunisian Typha Leaf Fibers.
Hema Chandra Reddy, Mechanical Properties and Thermal Conductivity of Typha angustifolia Natural Fiber–Reinforced Polyester Composites.
[43] J.Liu, Z.Zhang, Z.Yu, Y.Lianga, X.Lia, L.Rena, Experimental study and numerical simulation on the structural and mechanical properties of Typha leaves through multimodal microscopy approaches.
The study of the structural and mechanical properties of Typha was carried out by J.
Slah, Study of Structure and Properties of Tunisian Typha Leaf Fibers.
Hema Chandra Reddy, Mechanical Properties and Thermal Conductivity of Typha angustifolia Natural Fiber–Reinforced Polyester Composites.
[43] J.Liu, Z.Zhang, Z.Yu, Y.Lianga, X.Lia, L.Rena, Experimental study and numerical simulation on the structural and mechanical properties of Typha leaves through multimodal microscopy approaches.
Online since: November 2017
Authors: Pavlo Saik
In addition, due to the operation of the soil heat exchanger pipe, the geomechanical and temperature factors that cause its deformation are affected by the operation [18].
They provide cogeneration of electricity, thermal and mechanical energy.
In systems of soil heat exchangers, the amount of received heat energy depends on the speed, pressure, type of fluid circulating in the system, its physical properties, the number of soil pipes, the distribution of temperatures in the soil, the characteristics of the heat transfer process, which affects the temperature of the heat carrier, from which in turn, the temperature of the coolant at the outlet of the soil heat exchanger depends.
This affects the increase in the capacity of the heat pump plant as a whole, while reducing costs.
Construction of a geosystem with the selection of heat from dumps will make it possible to autonomously provide electric, thermal and mechanical energy settlements located around mines.
They provide cogeneration of electricity, thermal and mechanical energy.
In systems of soil heat exchangers, the amount of received heat energy depends on the speed, pressure, type of fluid circulating in the system, its physical properties, the number of soil pipes, the distribution of temperatures in the soil, the characteristics of the heat transfer process, which affects the temperature of the heat carrier, from which in turn, the temperature of the coolant at the outlet of the soil heat exchanger depends.
This affects the increase in the capacity of the heat pump plant as a whole, while reducing costs.
Construction of a geosystem with the selection of heat from dumps will make it possible to autonomously provide electric, thermal and mechanical energy settlements located around mines.
Online since: January 2012
Authors: Mohd Zaki Nuawi, Mariyam Jameelah Ghazali, Jaharah A. Ghani, Shahrum Abdullah, Zailan Karim
Ghazali
Department of Mechanical and Materials Engineering,
Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, MALAYSIA
azailan@mfi.unikl.edu.my, bzaki@eng.ukm.my
Keywords: I-kaz, condition monitoring, airborne technique, wear, signal processing
Abstract.
The similar finding was reported in the study of condition-based monitoring on automotive gearbox using ultrasonic signal in which I-kaz coefficient was used in clustering process against Kurtosis, Crest Factor and Skewness [10].
The pattern of correlation between K’ and 7Z∞ values was affected by work material and sliding condition.
Dry sliding friction and wear properties of zinc based alloys.
Proceedings of the International Conference on Mechanical and Manufacturing Engineering
The similar finding was reported in the study of condition-based monitoring on automotive gearbox using ultrasonic signal in which I-kaz coefficient was used in clustering process against Kurtosis, Crest Factor and Skewness [10].
The pattern of correlation between K’ and 7Z∞ values was affected by work material and sliding condition.
Dry sliding friction and wear properties of zinc based alloys.
Proceedings of the International Conference on Mechanical and Manufacturing Engineering
Online since: November 2015
Authors: Marcin Butlewski
The ability of opening packages will be affected by a decline in the ability to distinguish colors, the greatest limitation being in seeing the color blue, which is perceived as gray or convex [14], which makes it difficult to recognize the moving elements of mechanisms by the elderly.
It is the sum of at least two factors, which are: the packaging construction itself and the strength of the raw materials used – material and binder.
A major factor in the formation of design antinomies is the economic factor, because for disposable packaging, packaging must account for a part of the total cost, which, with mass consumer goods is achieved by minimizing the mass and maximizing the technological properties of manufacture.
[2] ISO 13127:2012 Packaging - Child resistant packaging - Mechanical test methods for reclosable child resistant packaging systems
Mead, Guidelines for age-inclusive design, Proceedings of the Human Factors and Ergonomics Society, 1998, pp. 16-29
It is the sum of at least two factors, which are: the packaging construction itself and the strength of the raw materials used – material and binder.
A major factor in the formation of design antinomies is the economic factor, because for disposable packaging, packaging must account for a part of the total cost, which, with mass consumer goods is achieved by minimizing the mass and maximizing the technological properties of manufacture.
[2] ISO 13127:2012 Packaging - Child resistant packaging - Mechanical test methods for reclosable child resistant packaging systems
Mead, Guidelines for age-inclusive design, Proceedings of the Human Factors and Ergonomics Society, 1998, pp. 16-29
Online since: August 2009
Authors: R.A. Dorey, Da Zhi Wang
Lead zirconate titanate (PZT) is a suitable material for ultrasonic
transducers because of its high piezoelectric constant, relative permittivity and electromechanical
coupling factor [1].
Using these test features, properties of the PZT thick film single element devices in terms of electrode feature and size were examined.
The sintering aid helps to increase the density and piezoelectric properties of the sintered PZT film.
Applied voltage and flow rate are major factors that affect the characteristics of atomization mode and deposition result.
Other properties such as resonant frequency and acoustic response of these PZT elements are suggested to be examined after etching Si back substrate.
Using these test features, properties of the PZT thick film single element devices in terms of electrode feature and size were examined.
The sintering aid helps to increase the density and piezoelectric properties of the sintered PZT film.
Applied voltage and flow rate are major factors that affect the characteristics of atomization mode and deposition result.
Other properties such as resonant frequency and acoustic response of these PZT elements are suggested to be examined after etching Si back substrate.
Online since: August 2017
Authors: Marcin Wronski, Brigitte Bacroix, Alain Lodini, Andrzej Baczmański, Krzysztof Wierzbanowski, Sebastian Wroński, Mariusz Jędrychowski, Jacek Tarasiuk
Many investigations were devoted to microstructure modifications of titanium caused by cold rolling and its influence on resulting material properties.
The latter mechanism affects microstructure, strain hardening, texture evolution and residual stress.
Distributions of Taylor factor calculated for initial material for RD and TD tensile loads.
Therefore, the AR material is less constrained and thus potentially has better formability properties.
Richeton, K.E.K.Amouzou, Mechanisms of anisotropy of mechanical properties of α-titanium in tension conditions, Mat.
The latter mechanism affects microstructure, strain hardening, texture evolution and residual stress.
Distributions of Taylor factor calculated for initial material for RD and TD tensile loads.
Therefore, the AR material is less constrained and thus potentially has better formability properties.
Richeton, K.E.K.Amouzou, Mechanisms of anisotropy of mechanical properties of α-titanium in tension conditions, Mat.
Online since: November 2016
Authors: Birgit Finke, Matthias Schnabelrauch, Karine Anselme, Susanne Staehlke, Henrike Rebl, J. Barbara Nebe, Caroline Moerke, Christiane A. Helm, Marcus Frank
A crucial factor for ingrowth of permanent implants in the bone is the rapid cellular acceptance.
The topographical features often follow mechanical aspects for implant stability.
Cells are able to perceive the physico-chemical properties of their surrounding and to pass these signals into the cell to modulate their adhesion structures, growth or production of extracellular matrix.
Cells are able to perceive the physico-chemical properties of their surrounding and to pass these signals into the cell to modulate their adhesion structures, growth or production of the extracellular matrix.
Besides physical properties, the adhesive interactions of cells with a material surface are controlled by chemical characteristics of the surface [3].
The topographical features often follow mechanical aspects for implant stability.
Cells are able to perceive the physico-chemical properties of their surrounding and to pass these signals into the cell to modulate their adhesion structures, growth or production of extracellular matrix.
Cells are able to perceive the physico-chemical properties of their surrounding and to pass these signals into the cell to modulate their adhesion structures, growth or production of the extracellular matrix.
Besides physical properties, the adhesive interactions of cells with a material surface are controlled by chemical characteristics of the surface [3].
Online since: July 2017
Authors: Ana Paula Rosifini Alves Claro, Ketul C. Popat, Nathan Trujillo, Ana Lucia do Amaral Escada
The efficacy of osseointegration is influenced by factors including the surface condition of titanium implant, therefore, varied surface modifications have been performed to improve the osseointegration, such as formation of TiO2, coating with hydroxyapatite or natural organic compounds and chemical treatments, [9].
The interaction between cells and implants is governed by a number of physical and chemical processes among which a major factor is implant surface topography [13].
Fibroblast cells are the key to tissue regeneration and proliferate rapidly in vivo, producing a highly dense matrix of proteins and growth factors through an organized net of cells with elongated morphologies.
Fibroblasts are the key to tissues regeneration and proliferate quickly in vivo, and a highly dense proteins matrix and growth factors are produced by a cells cluster with elongated morphology [19].
In conclusion, the results show that the Ti-7.5Mo nanotubes samples have better surface properties than polished Ti-7.5Mo to be used as biomedical materials; however the biocompatibility can be better evaluated if it is used a cell with higher affinity for rough surfaces such as mesenchymal stem cells or osteoblasts.
The interaction between cells and implants is governed by a number of physical and chemical processes among which a major factor is implant surface topography [13].
Fibroblast cells are the key to tissue regeneration and proliferate rapidly in vivo, producing a highly dense matrix of proteins and growth factors through an organized net of cells with elongated morphologies.
Fibroblasts are the key to tissues regeneration and proliferate quickly in vivo, and a highly dense proteins matrix and growth factors are produced by a cells cluster with elongated morphology [19].
In conclusion, the results show that the Ti-7.5Mo nanotubes samples have better surface properties than polished Ti-7.5Mo to be used as biomedical materials; however the biocompatibility can be better evaluated if it is used a cell with higher affinity for rough surfaces such as mesenchymal stem cells or osteoblasts.
Online since: January 2013
Authors: Dong Lian, Xiu Qing Li, Hong Tao, Qing He Zhang
Zhu et al. [48] studied the properties of ethylene-bridged sph-PMO in reversed phase HPLC mode.
The physical-chemistry and chromatography properties were characterized.
However, the addition of ethanol can affect the morphology of the material.
The capacity factor of amylbenzene denotes as k’, which reflects the amount of alkyl in the material; The capacity factor of amylbenzene divided by that of butylbenzene denotes as α, which reflects the hydrophobicity of the material; the ratio of the capacity factors of 9,10-benzphenanthrene and ortho-terphenyl denotes as αT/O, which reflects the stereoselective of the material; the capacity factor of caffeine devided by that of phenol denotes as αC/P, which reflects the amount of residual slianol; and the ratio capacity factor of benzylamine devided by the factor of phenol denotes as αA/P, which reflects the ion-exchange capacity of the material.
The amount of BTMSPMA has great effects on the structural properties and chemical composition of the materials.
The physical-chemistry and chromatography properties were characterized.
However, the addition of ethanol can affect the morphology of the material.
The capacity factor of amylbenzene denotes as k’, which reflects the amount of alkyl in the material; The capacity factor of amylbenzene divided by that of butylbenzene denotes as α, which reflects the hydrophobicity of the material; the ratio of the capacity factors of 9,10-benzphenanthrene and ortho-terphenyl denotes as αT/O, which reflects the stereoselective of the material; the capacity factor of caffeine devided by that of phenol denotes as αC/P, which reflects the amount of residual slianol; and the ratio capacity factor of benzylamine devided by the factor of phenol denotes as αA/P, which reflects the ion-exchange capacity of the material.
The amount of BTMSPMA has great effects on the structural properties and chemical composition of the materials.