تصفح College of Engineering حسب العنوان
السجلات المعروضة 3176 -- 3195 من 7743
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Experimental and analytical study on strengthening of reinforced concrete T-beams in shear using steel reinforced grout (SRG)
( Elsevier Ltd , 2019 , Article)The use of steel reinforced grout (SRG) has emerged as a promising technique for the strengthening and retrofitting of reinforced concrete (RC) structures, however, the experimental evidence on its application for ... -
Experimental and DFT Approach on the Determination of Natural Gas Hydrate Equilibrium with the Use of Excess N2 and Choline Chloride Ionic Liquid as an Inhibitor
( American Chemical Society , 2016 , Article)This work presents the characterization of hydrate-forming conditions of a Qatari natural gas-type mixture, QNG-S1, obtained using two different experimental methods, namely, a benchtop reactor and a gas hydrate autoclave. ... -
Experimental and numerical investigation of damping in a hybrid automotive damper combining viscous and multiple-impact mechanisms
( SAGE , 2022 , Article)One of the least investigated approaches in passive vibration control is the possibility of combining different types of dampers that use different damping principles. Such a combination process, if wisely designed and ... -
An experimental and numerical investigation of the effects of the diaphragm pressure ratio and its position on a heated shock tube performance
( Wiley-Blackwell , 2022 , Article)The main purpose of this work was to investigate the performance of heated shock tube (ST) with different pressure ratios and diaphragm positions numerically and experimentally. The numerical model was developed to simulate ... -
Experimental and numerical investigations on axial crushing of square cross-sections tube with vertical wave
( Techno-Press , 2020 , Article)In this paper, wavy square absorbers were experimentally and numerically investigated. Numerical simulations were performed with LS-Dyna software on 36 wavy absorbers and their crushing properties were extracted and compared ... -
Experimental and theoretical investigations of the effect of bis-phenylurea-based aliphatic amine derivative as an efficient green corrosion inhibitor for carbon steel in HCl solution
( Elsevier , 2023 , Article)A novel bis-phenylurea-based aliphatic amine (BPUA) was prepared via a facile synthetic route, and evaluated as a potential green organic corrosion inhibitor for carbon steel in 1.0 M HCl solutions. NMR spectroscopy ... -
Experimental and theoretical studies on axially crushed corrugated metal tubes
( Elsevier Ltd , 2018 , Article)In this paper, crushing behaviors of tube with shallow and deep corrugation are experimentally and theoretically examined under axial loading condition. Three types of specimens were tested under quasi static axial loading. ... -
Experimental characterization of a tactile sensor for surgical applications
( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)© 2018 IEEE. This paper presents an improved piezoelectric sensor fabricated using reduced graphene oxide (rGO)-filled polydimethylsiloxane (PDMS) elastomer composite that is able to sense the linear force applied onto its ... -
Experimental determination and computational fluid dynamics predictions of pressure loss in close-coupled elbows (RP-1682)
( Taylor and Francis Inc. , 2017 , Article)An experimental program was implemented to study pressure losses in HVAC duct systems associated with 305 mm (12 in.) diameter close-coupled round five-gore elbows. The goal of this program was to experimentally verify a ... -
Experimental determination of carbamate formation and amine protonation constants in 3-amino-1-propanol-CO2-H2O system and their temperature dependency
( Elsevier , 2015 , Article)The equilibrium constant for the formation of carbamate in 3-amino-1-propanol-CO2-H2O system was evaluated at different CO2 loadings, different temperature values, and different amine protonation constant. The studied ... -
Experimental investigation and artificial intelligence-based modeling of the residual impact damage effect on the crashworthiness of braided Carbon/Kevlar tubes
( Elsevier , 2020 , Other)Fiber reinforced plastic composites are promising candidates for building the next generation of automotive and aircraft structures. However, these materials are sensitive to any potential impact, which may cause matrix ... -
Experimental Investigation and Comparative Evaluation of Standard Level Shifted Multi-Carrier Modulation Schemes with a Constraint GA Based SHE Techniques for a Seven-Level PUC Inverter
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)This paper investigates a reduced switch count topology for seven-level single-phase voltage-source inverter, nomenclatures as asymmetrical holding capacitor or also known as asymmetrical flying level capacitor or packed ... -
EXPERIMENTAL INVESTIGATION AND HEAT TRANSFER ANALYSIS OF INNOVATIVE THERMAL MECHANICAL REFRIGERATION SYSTEM COMPARED TO ELECTRIC COMPRESSOR
( American Society of Mechanical Engineers (ASME) , 2022 , Conference Paper)The current electric refrigeration and air condition systems are major causes for ozone depletion and global warming. These systems consume large percent of the worldwide gross production of electricity (around 17%). ... -
Experimental Investigation and Uncertainty Prediction of the Load-Carrying Capacity of Composite Double Hat for Lattice Core Sandwich Panels Using Artificial Neural Network
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference Paper)Carbon fiber reinforced composites are promising candidates for building advanced multifunctional structures with superior properties that are suitable for the next generation of automotive and aircraft applications. This ... -
An experimental investigation into mechanical behavior of hybrid and nonhybrid composite semi-elliptical springs
( Elsevier, Ltd , 2013 , Article)This study introduces a new composite semi-elliptical suspension spring by utilizing fiber reinforced composite strength in principal direction instead of shear direction. Three types of composites were tested, namely, ... -
Experimental Investigation of Foam drilling fluid using Visualization Technique
( Qatar University Press , 2021 , Poster)Cutting transport is one of the major factors, which affects the cost, time and quality of drilling operations. Over the years, as the number of directional wells have increased to improve the productivity, it has been ... -
Experimental Investigation of Isothermal Vapor-Liquid Equilibrium and Estimation of Excess Thermodynamic Properties (hE) of CHO2K-H2O from 278.15 to 423.15 K
( American Chemical Society , 2019 , Article)In this paper, vapor liquid equilibrium (VLE) of a binary mixture, potassium formate-water (CHO2K-H2O), was measured experimentally using a dynamic moving type VLE setup in the temperature range of 313.15 to 393.15 K. ... -
Experimental investigation of the crashworthiness performance of fiber and fiber steel-reinforced composites tubes
( Elsevier , 2020 , Article)Crashworthiness plays a key role in energy absorption and hence in vehicle accidents. The energy absorption capacity of laminated composite materials is heavily investigated in the industry due to their low cost, corrosion ... -
Experimental investigation of the dynamic characteristics of wrapped and wound fiber and metal/fiber reinforced composite pipes
( Elsevier , 2021 , Article)This paper experimentally investigates the effect of the manufacturing method and metal reinforcement option on the natural frequency and damping behavior of five polymer and Fiber Reinforced Polymer (FRP) composite pipes. ... -
Experimental investigation of the influence of grain geometry on residual NAPL using synchrotron microtomography
( Elsevier B.V. , 2014 , Article)The objective of this work was to investigate the impact of grain geometry (size and shape) of porous media on the morphology of residual NAPL. Synchrotron microtomography was used to obtain maps of residual NAPL in ...
