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السجلات المعروضة 10113 -- 10132 من 49153
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EXPERIMENTAL INVESTIGATIONS AND COMPUTATIONAL FLUID DYNAMIC PREDICTIONS OF PRESSURE DROP CHARACTERISTICS IN MULTIPHASE FLOW FOR CONCENTRIC INCLINED ANNULI IN NEAR HORIZONTAL WELLS
(06-2 , Master Thesis)In oil and gas sectors, the accuracy of pressure drop predictions plays significant role in designing multiphase flow systems. In recent decades, there is a considerable amount of theoretical and experimental studies dealing ... -
Experimental investigations of atmospheric water extraction device under different climatic conditions
( Elsevier Ltd , 2020 , Article)To help address this emergency, an atmospheric water extracting (AWE) device is developed and investigated as a part of present work. The AWE device is working on vapour compression refrigeration cycle. The air moisture ... -
Experimental Investigations of Gas Kick for Single and Two-Phase Gas-liquid Flow in near Horizontal Wells
( Qatar University Press , 2021 , Poster)Multiphase flow in pipelines is of great importance and broadly used in several industries for various applications. A multiphase flow is a complex physical phenomenon where more than one phase occurs. In oil and gas ... -
Experimental investigations on spray flames and emissions analysis of diesel and diesel/biodiesel blends for combustion in oxy-fuel burner
( John Wiley and Sons Ltd , 2019 , Article)Present research work shows the emissions and flame analysis of oxy-fuel combustion of diesel and diesel/biodiesel blends in the experimental test burner manufactured in Mechanical power engineering laboratory at Tanta ... -
Experimental investigations on the performance of a thermo-mechanical refrigeration system utilizing ultra-low temperature waste heat sources
( Elsevier , 2023 , Article)Experimental studies that investigate the utilization of ultra-low temperature (between 48 °C and 120 °C) waste heat, which forms 25 % of the global unrecovered waste heat, to drive thermal cooling systems are rare. Thus, ... -
Experimental Measurement Of Drop Phase Mass Transfer Coefficients For The Carbon Tetrachloride-Acetic Acid-Water System
( Qatar University , 1991 , Article)The overall mass transfer coefficients of single drops of carbon tetrachloride falling in a stagnant continuous phase of water containing acetic acid as solute were measured experimentally for different dispersed phase ... -
Experimental measurements and modelling of viscosity and density of calcium and potassium chlorides ternary solutions
( Nature Research , 2020 , Article)Measured viscosity and density data for ternary aqueous solutions of CaCl2 and KCl are presented at temperatures between 293 and 323�K with 5�K increment. A modified Jones?Dole was introduced by adding extra terms and ... -
EXPERIMENTAL MEASUREMENTS AND TRANSIENT 3D SIMULATIONS OF TURBULENT PREMIXED FLAMES OF GAS-TO-LIQUIDS (GTL) FUEL IN A FAN-STIRRED COMBUSTION BOMB
(2022 , Dissertation)The rapid fluctuation in oil prices and the increased demand for alternative fuels to replace conventional fuels are challenging contemporary issues. One such alternative fuel that has gained significant interest recently ... -
An Experimental Performance Evaluation and Compatibility Study of the Bluetooth Low Energy Based Platform for ECG Monitoring in WBANs
( SAGE publications , 2015 , Article)A long term healthcare monitoring system requires battery operated devices with low-power technologies. Researchers tried to adapt various short-range technologies for Wireless Body Area Networks (WBANs) in ubiquitous ... -
Experimental performance investigations on various orientations of evacuated double absorber tube for solar parabolic trough concentrator
( Taylor and Francis Ltd. , 2022 , Article)The parabolic trough concentrator is a widely used concentrator to harness and concentrate on the solar energy. The performance of the parabolic trough concentrator depends upon its various parameters like reflecting ... -
Experimental photovoltaic power supply based on flying capacitors multilevel inverter
( IEEE , 2011 , Conference Paper)Nowadays, a great deal of research is being carried out to utilize the solar energy effectively through power electronics converters (conditioners) to meet the increasing demand for load. In this paper, a weighted Real ... -
Experimental prediction of the elastic properties of nanocomposite cementitious materials based on nanoindentation measurements
( American Scientific Publishers , 2017 , Article)This paper provides in depth novel exploration of the local mechanical properties of nanocomposite cement using the nanoindentation technique. The elastic properties of carbon nanotubes (CNTs)-reinforced and unreinforced ... -
Experimental results and modelling of corrosion-damaged concrete beams strengthened with externally-bonded composites
( Elsevier Ltd , 2018 , Article)This paper presents the results of 3D finite element (FE) modelling of corrosion-damaged reinforced concrete (RC) beams strengthened in flexure with externally-bonded composites. The models were validated against the results ... -
Experimental Setup for Measuring Relaxation from EEG Signals during Immersion in VR Environments
( Institute of Electrical and Electronics Engineers Inc. , 2022 , Conference Paper)According to the Global Organization for Stress, 80 percent of people are stressed at work and according to the American Institute of Stress, stress causes 48 percent of people to have difficulty sleeping. Relaxation reduces ... -
Experimental setup to validate the effects of major environmental parameters on the performance of FSO communication link in Qatar
( MDPI AG , 2018 , Article)Weather conditions and chemical composition of the atmosphere are the most uncontrollable challenges for free-space optical (FSO) communications. Environmental parameters contribute directly in the characterization of ... -
Experimental studies and computer modeling of viscoelastic properties of heart valve leaflets: Implication in heart valve tissue engineering
( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)Diseased or damaged heart valve leaflets are amongst the major causes of illness and death globally. The currently available treatment of heart valve patients is to mend the damaged valves, but in most severe cases, heart ... -
Experimental studies on the biodiesel production parameters optimization of sunflower and soybean oil mixture and DI engine combustion, performance, and emission analysis fueled with diesel/biodiesel blends
( Elsevier Ltd , 2019 , Article)The influence of diesel/biodiesel blends on engine combustion, performance, and exhaust gas emissions have carried out experimentally at different engine loads and constant speed of 1400 rpm. Volumetric percentage of ... -
Experimental study of exhaust emissions and performance of a dual fuel IDI diesel engine
(1999 , Conference Paper)Dual fuel engines of the compression ignition type provide an alternative approach for I.C. engines to improve economy, reduce exhaust emissions and achieve a greater power. The present contribution is an experimental ... -
Experimental study of the attenuation properties of metal-viscoelastic bi-layered materials
( Institute of Physics Publishing , 2018 , Conference Paper)Phononic crystals (PCs) are multi-layered materials with functional elastic wave band gaps where propagation of vibration within these band gaps is restricted. PCs have vibration attenuation properties dependent on their ... -
An Experimental Study of Two-way Ranging Optimization in UWB-based Simultaneous Localization and Wall-Mapping Systems
( Institute of Electrical and Electronics Engineers Inc. , 2022 , Conference Paper)In this paper, we propose a new ultra-wideband (UWB)-based simultaneous localization and wall-mapping (SLAM) system, which adopts two-way ranging optimization on UWB anchor and tag nodes to track the target's real-time ...
