Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: July 2015
Authors: Daniele Marini, Jonathan Corney, David Cunningham
In order to apply [1] methodology to flow forming, prediction of microstructure and its effect and prediction of mechanical properties should be added in prediction models, due to their impact on final product quality and process mechanisms.
Prediction of surface properties.
Conclusions The sensitivity of the flow forming process to material properties affects both prediction accuracy and so the impact of theoretical models.
Podder et al., Effect of preform heat treatment on the flow formability and mechanical properties of AISI4340 steel, M&D 37 (2012)174-181
Djavanroodi, Experimental study of thickness reduction effects on mechanical properties and spinning accuracy of aluminum 7075-O, Int.J.Adv.Man.Tech. 52 (2010) 949-957
Prediction of surface properties.
Conclusions The sensitivity of the flow forming process to material properties affects both prediction accuracy and so the impact of theoretical models.
Podder et al., Effect of preform heat treatment on the flow formability and mechanical properties of AISI4340 steel, M&D 37 (2012)174-181
Djavanroodi, Experimental study of thickness reduction effects on mechanical properties and spinning accuracy of aluminum 7075-O, Int.J.Adv.Man.Tech. 52 (2010) 949-957
Online since: June 2024
Authors: Hasanain M. Hussain, Elaf Sadeq Barrak, Laith Jaafer Habeeb
Consequently, the literature review was partitioned into three distinct sections based on its primary themes.
1) The present status of ventilation techniques and the quality of indoor air.
2) The properties of airborne respiratory droplet transmission as well as the ventilation management of such transmission are the subject of this work.
3) The viability and effectiveness of individualized ventilation systems.
This is because it relies on natural forces, such as wind-driven pressure differences and temperature changes through windows and door openings, among other factors[45].
Braham, “Measuring the right factors: A review of variables and models for thermal comfort and indoor air quality,” Renewable and Sustainable Energy Reviews, vol. 135.
Havenith, “Thermal insulation and clothing area factors of typical Arabian Gulf clothing ensembles for males and females: Measurements using thermal manikins,” Appl Ergon, vol. 39, no. 3, pp. 407–414, 2008, doi: 10.1016/j.apergo.2007.10.001
Capolongo, “Indoor Air Quality in Inpatient Environments: A Systematic Review on Factors that Influence Chemical Pollution in Inpatient Wards,” Journal of Healthcare Engineering, vol. 2019.
This is because it relies on natural forces, such as wind-driven pressure differences and temperature changes through windows and door openings, among other factors[45].
Braham, “Measuring the right factors: A review of variables and models for thermal comfort and indoor air quality,” Renewable and Sustainable Energy Reviews, vol. 135.
Havenith, “Thermal insulation and clothing area factors of typical Arabian Gulf clothing ensembles for males and females: Measurements using thermal manikins,” Appl Ergon, vol. 39, no. 3, pp. 407–414, 2008, doi: 10.1016/j.apergo.2007.10.001
Capolongo, “Indoor Air Quality in Inpatient Environments: A Systematic Review on Factors that Influence Chemical Pollution in Inpatient Wards,” Journal of Healthcare Engineering, vol. 2019.
Online since: September 2013
Authors: Tae Gyu Kim, Hyun Cho, Jong Cheon Park, Jin Kon Kim, Ok Geun Jeong, Sang Youn Kim
Introduction
Nanocrystalline diamond (NCD) films have attracted much attention due to their exceptional mechanical, tribological and electrical properties.
For example, ahybrid Si cantilever mounted with a very thin NCD coating layer has shown promising sensing properties for chemical sensor applications by utilizing exceptional chemical inertness and biocompatibility of NCD surface [5,6].
The most critical factor that affects the surface roughness of the NCD film is pretreatment technique for initial diamond nucleation.
Mechanical abrasion was performed with diamond suspensions (1 and 3μm particle size) in a mechanical polisher (Struers RotoPol-25) for 10 minutes.
The structural properties of the grown films were characterized by Raman spectroscopy (Thermo Scientific DXR Raman Microscope).
For example, ahybrid Si cantilever mounted with a very thin NCD coating layer has shown promising sensing properties for chemical sensor applications by utilizing exceptional chemical inertness and biocompatibility of NCD surface [5,6].
The most critical factor that affects the surface roughness of the NCD film is pretreatment technique for initial diamond nucleation.
Mechanical abrasion was performed with diamond suspensions (1 and 3μm particle size) in a mechanical polisher (Struers RotoPol-25) for 10 minutes.
The structural properties of the grown films were characterized by Raman spectroscopy (Thermo Scientific DXR Raman Microscope).
Online since: October 2013
Authors: Yu Zhang, Jian Bo Bai, Sheng Liu
These researchers studied the electrical and temperature properties of PV modules.
Analysis the influence of irradiance and ambient temperature on the performance of PV module The temperature of photovoltaic cells is affected by several environmental factors, such as irradiance, wind speed and ambient temperature.
The heat dissipation of the PV module is mainly affected by thermal radiation.
And when the wind speed increases from 0.5m/s to 10.5m/s, the temperature of PV module is not obviously affected by the wind speed.
However, when the irradiance reduces to 400w/m2, the wind speed will hardly affect the temperature of the PV module.
Analysis the influence of irradiance and ambient temperature on the performance of PV module The temperature of photovoltaic cells is affected by several environmental factors, such as irradiance, wind speed and ambient temperature.
The heat dissipation of the PV module is mainly affected by thermal radiation.
And when the wind speed increases from 0.5m/s to 10.5m/s, the temperature of PV module is not obviously affected by the wind speed.
However, when the irradiance reduces to 400w/m2, the wind speed will hardly affect the temperature of the PV module.
Online since: April 2014
Authors: Md Eaqub Ali, Sharifah Bee Abd Hamid, Rasel Das
It is seriously affecting social development,especially in developing countries and bringing massive socio-political conflicts [4].
Carbon nanotube (CNT) is one of the fascinating and enchant nanomaterial because of their special physio-chemical properties like mechanical [7], thermal [8] and electrical [9] properties.
We can develop a theoretical or molecular modeling before experiments, so that we can correlate the electronic properties with CNTs morphology.
The chirality, diameter and tube length could contribute significant changes in its electrical properties.
The processing is another factor to be addressed.
Carbon nanotube (CNT) is one of the fascinating and enchant nanomaterial because of their special physio-chemical properties like mechanical [7], thermal [8] and electrical [9] properties.
We can develop a theoretical or molecular modeling before experiments, so that we can correlate the electronic properties with CNTs morphology.
The chirality, diameter and tube length could contribute significant changes in its electrical properties.
The processing is another factor to be addressed.
Online since: May 2020
Authors: Hamimah Abdul Rahman, Nurul Akidah Baharuddin, Jarot Raharjo, Umira Asyikin Yusop, Tan Kang Huai
The presence of secondary peaks in nanoscale materials may be attributed to several factors, such as differences in crystallite surface and differences in volume ratio between large bulk crystallites and nanoparticles [13].
Different physical, chemical and thermal properties contribute to the conductivity of a sample.
Synthesis and properties of Ag nanoparticles attached La0. 6Sr0. 4Co0. 3Fe0. 7O3-δ.
Wilkinson, Jiujun Zhang, Solid Oxide Fuel Cells; Materials Properties and Performance, Boca Raton (2009)
[18] Qing Xu, Duan Ping Huang, Feng Zhang and Han Xing Liu, Structure electrical conducting and thermal expansion properties La0.6Sr0.4Co0.8Fe0.2O3-δ – Ce0.8Sm0.2O2-δ composite cathodes, Journal of Alloys and Compound 454(s1-2): (2008) 460-465
Different physical, chemical and thermal properties contribute to the conductivity of a sample.
Synthesis and properties of Ag nanoparticles attached La0. 6Sr0. 4Co0. 3Fe0. 7O3-δ.
Wilkinson, Jiujun Zhang, Solid Oxide Fuel Cells; Materials Properties and Performance, Boca Raton (2009)
[18] Qing Xu, Duan Ping Huang, Feng Zhang and Han Xing Liu, Structure electrical conducting and thermal expansion properties La0.6Sr0.4Co0.8Fe0.2O3-δ – Ce0.8Sm0.2O2-δ composite cathodes, Journal of Alloys and Compound 454(s1-2): (2008) 460-465
Online since: July 2022
Authors: Pierre Montmitonnet, Leyne Demoulin, Zineb Zahar, Achraf El Mekkaoui, Arnaud Reignier, Pierre Emmanuel Leger, Katia Mocellin
Of course, a HAZ forms, with mechanical properties slightly different from the hot rolled metal, but its effect is left for future work.
Temperature increase is small (low rolling speed) and negligible impact on mechanical properties has been assumed.
Mechanical properties.
It is used in the following for the weld metal, but also in the parametric study on the austenitic strip mechanical properties.
The present study has confirmed the importance of risk factors qualitatively pointed out in the scarce technical literature.
Temperature increase is small (low rolling speed) and negligible impact on mechanical properties has been assumed.
Mechanical properties.
It is used in the following for the weld metal, but also in the parametric study on the austenitic strip mechanical properties.
The present study has confirmed the importance of risk factors qualitatively pointed out in the scarce technical literature.
Online since: July 2020
Authors: Akhmad Herman Yuwono, I Nyoman Sutantra, I Dewa Gede Ary Subagia
The decreasing mechanical properties have been occurred due to delamination failure during the drilling process.
However, it would influence a negative impact on the mechanical properties of composite materials.
In addition, the mechanical properties of composite materials can be maintained as needed.
The conclusion is a hybrid composite material drilling is unique because there are two or more material properties so that lubrication is needed to maintain the mechanical properties of the composite.
Subagia, I.A., Kim Y., A study on flexural properties of carbon-basalt/epoxy hybrid composites, Journal of Mechanical Science and Technology, 27(4), (2013) 987-92
However, it would influence a negative impact on the mechanical properties of composite materials.
In addition, the mechanical properties of composite materials can be maintained as needed.
The conclusion is a hybrid composite material drilling is unique because there are two or more material properties so that lubrication is needed to maintain the mechanical properties of the composite.
Subagia, I.A., Kim Y., A study on flexural properties of carbon-basalt/epoxy hybrid composites, Journal of Mechanical Science and Technology, 27(4), (2013) 987-92
Online since: October 2011
Authors: Xiao Fei Ma, Jiao Zhang, Jin Gui Sheng, Hong Wei Li, Chun Bo Wang
So understanding the combustion affect to boiler heat transfer, will make great sense to oxy-fired CFBB.
The oxidation reaction of coke can be represented as: (13) In the formula, is mechanical factor.
So the important influence factors of heat transfer coefficient in CFB to be particle diameter- particularly in the dense zone.
So voidage is one of the important parameter , which affect the heat transfer coefficient in sparse zone.
Although radiation heat transfer coefficient is relevant to the physical properties and temperature, the increase of voidage will affect the time-averaged share of the wall, thus affecting the radiation heat transfer coefficient.
The oxidation reaction of coke can be represented as: (13) In the formula, is mechanical factor.
So the important influence factors of heat transfer coefficient in CFB to be particle diameter- particularly in the dense zone.
So voidage is one of the important parameter , which affect the heat transfer coefficient in sparse zone.
Although radiation heat transfer coefficient is relevant to the physical properties and temperature, the increase of voidage will affect the time-averaged share of the wall, thus affecting the radiation heat transfer coefficient.
Online since: February 2013
Authors: E.N. Popova, A.E. Vorobyova, I.L. Deryagina, M.V. Polikarpova, D.C. Novosilova
However, other factors affecting the residual resistance of stabilizing Cu must be taken into account.
Thus, there is no great difference in the grain sizes and their spread, which means that some other factors but not grain boundaries cause different values of the residual resistance.
As all the composite constituents have markedly differing mechanical properties and different deformability, the real loading on the Cu sheath is much higher in the composite wire than in free copper even at formally equal deformation degrees.
Wide scatter in the Cr diffusivity values shows that besides the diffusion of chromium there are some other factors affecting the residual resistance of copper sheaths.
This analysis demonstrates that besides Cr diffusion there are some other factors responsible for the RRR decrease.
Thus, there is no great difference in the grain sizes and their spread, which means that some other factors but not grain boundaries cause different values of the residual resistance.
As all the composite constituents have markedly differing mechanical properties and different deformability, the real loading on the Cu sheath is much higher in the composite wire than in free copper even at formally equal deformation degrees.
Wide scatter in the Cr diffusivity values shows that besides the diffusion of chromium there are some other factors affecting the residual resistance of copper sheaths.
This analysis demonstrates that besides Cr diffusion there are some other factors responsible for the RRR decrease.