Search
Now showing items 6161-6170 of 6245
Turbulence Modeling Using Z-F Model and RSM for Flow Analysis in Z-SHAPE Ducts
(
Wiley
, 2020 , Article)
Turbulent flow in Z-shape duct configuration is investigated using Reynolds stress model (RSM) and ζ-f model and compared to experimental results. Both RSM and ζ-f models are based on steady-state RANS solutions. The focus ...
Isobaric Expansion Engines Powered by Low-Grade Heat-Working Fluid Performance and Selection Database for Power and Thermomechanical Refrigeration
(
Wiley-VCH Verlag
, 2020 , Article)
A database is developed for the most suitable working fluids for Worthington-type and Bush-type isobaric engines based on their performances for a wide range of heat source temperature, from 40 to 300 °C, and operating ...
Large-eddy simulation of the flow in Z-Shape duct
(
Cogent OA
, 2020 , Article)
A numerical study is conducted of the transient flow in a z-shape three-dimensional duct using large-eddy simulation (LES) with dynamic eddy viscosity subgrid-scale (SGS) model with a fully structured grid system. The ...
Targeted and suspect screening of contaminants in coastal water and sediment samples in Qatar
(
Elsevier B.V.
, 2021 , Article)
In recent years, high resolution mass spectrometry (HRMS) combined with separation techniques has allowed comprehensive analysis of contaminants of emerging concern (CECs) as well as their metabolites and transformation ...
Modified Quantum Particle Swarm Optimization For Selective Harmonic Elimination (SHE) in A Single-phase Multilevel Inverter
(
International Journal of Innovative
, 2021 , Article)
The Multilevel Inverter (MLI) uses Selective Harmonic Elimination (SHE) of the Pulse Width Modulation (PWM) approach to tackle the fundamental harmonics with the elimination of selected lower harmonics. The optimal switching ...
Students' perceptions of flipped classrooms, gender, and country difference
(
IGI Global
, 2020 , Article)
Information technology and the Internet has enabled faculty and educational institutions to implement new teaching methods to enrich the educational environment. The flipped classroom (FC) method changed the teaching ...
Predictors for the adoption of e-democracy: an empirical evaluation based on a citizen-centric approach
(
Emerald Insight
, 2020 , Article)
Purpose: This study aims to explore the factors influencing the intention to use e-democracy. The literature depicted conflicting results regarding such domain and especially in the Middle East, where the authors aim at ...
Major factors influencing the adoption of cloud computing in Jordan
(
IGI Global
, 2020 , Article)
Cloud computing is emerging as a major advancement in organizational infrastructure, which aims to bring with it great benefits to technology users. Jordan is one of the developing countries that seeks to adopt such ...
Customer satisfaction with online food ordering portals in Qatar
(
IGI Global
, 2020 , Article)
The recent boom in online food ordering and delivery in Qatar has led to increased competition among service providers within the industry. Identifying the gap in research in the context of Qatar's online food industry, ...
Exploring the factors affecting user satisfaction with metrash2 system
(
IGI Global
, 2020 , Article)
This research investigated Qatari citizens' perceptions regarding the factors influencing their satisfaction with Metrash2 system. Qatari residents use Metrash2 to query, transact, and follow-up their needed information/services ...