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السجلات المعروضة 21 -- 30 من 862
Burden of diabetes mellitus attributable to demographic levels in Qatar: An emerging public health problem
(
Elsevier Ltd
, 2014 , Article)
Diabetes is one of the main contributors to ill health and premature mortality worldwide and its prevalence has been rising during the last decades. Aim The aim of the present study was to quantify the burden of disease ...
Design and numerical study of the integration of omnidirectional shroud with vertical axis wind turbine
(
Institution of Engineering and Technology
, 2014 , Conference Paper)
The integration of a vertical axis wind turbine (VAWT) with the novel omni-directional shroud is proposed. It consists of the upper wall, lower wall and an array of 5 guide-vanes. Wind from all directions is collected ...
Comfort-based fuzzy control optimization for energy conservation in HVAC systems
(
Elsevier Ltd
, 2014 , Article)
The work presented herein illustrates the use of computational intelligence and optimization approaches for improving the fuzzy controller's performance in architectural heating, ventilation, and air conditioning system ...
Effect of copper-nickel interlayer thickness on laser welding-brazing of Mg/Ti alloy
(
Elsevier Ltd
, 2019 , Article)
Dissimilar lap joining of AZ31B Mg alloy to Cu-Ni coated Ti-6Al-4V was carried out by laser welding-brazing method. The effect of Cu and Ni contents on interfacial reaction and joint fracture load were analyzed. For the ...
Study on the impact of welding on the corrosion properties of AA 6061 T6
(
Trans Tech Publications Ltd
, 2014 , Article)
Aluminium alloy 6061 T6 circular specimens were joined using TIG welding method. AlMg5 was used as filler. The corrosion behavior of welded and un-welded AA 6061 T6 was investigated using potentiodynamic and open circuit ...
Application of Ni and Cu nanoparticles in transient liquid phase (TLP) bonding of Ti-6Al-4V and Mg-AZ31 alloys
(
Springer US
, 2014 , Article)
The transient liquid phase (TLP) bonding of Ti-6Al-4V alloy to a Mg-AZ31 alloy was performed using an electrodeposited Ni coating containing a dispersion of Ni and Cu nanoparticles. Bond formation was attributed to two ...
A continuum model with a percolation threshold and tunneling-assisted interfacial conductivity for carbon nanotube-based nanocomposites
(
American Institute of Physics Inc.
, 2014 , Article)
A continuum model that possesses several desirable features of the electrical conduction process in carbon-nanotube (CNT) based nanocomposites is developed. Three basic elements are included: (i) percolation threshold, ...
Design development of aggregates cooling systems for hot weather concreting
(
Springer Netherlands
, 2015 , Article)
Using hot aggregates, in concrete production, results in a drop in compressive strength of the produced concrete. Various methods have been proposed for cooling concrete aggregates. This paper proposes new two designs for ...
PS/TiO2 (polystyrene/titanium dioxide) composite nanofibers with higher surface-to-volume ratio prepared by electrospinning: Morphology and thermal properties
(
John Wiley & Sons, Ltd.
, 2013 , Article)
Polystyrene (PS)/Titanium dioxide (TiO2) composite nanofibers were prepared by electrospinning of PS/TiO2 solution in N,N-dimethylformamide (DMF). The effect of PS and TiO2 concentration on the morphology and thermal ...
A dynamic MOPSO algorithm for multiobjective optimal design of hybrid renewable energy systems
(
John Wiley and Sons Ltd
, 2014 , Article)
In this paper, a dynamic multiobjective particle swarm optimization (DMOPSO) method is presented for the optimal design of hybrid renewable energy systems (HRESs). The main goal of the design is to minimize simultaneously ...