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Now showing items 4436-4455 of 27588
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COMBUSTION CHARACTERISTICS AND EMISSION OF A DI DIESEL ENGINE UTILIZING NEW INDUCTION MANIFOLD DESIGNS AND RUNNING ON ALTERNATIVE FUEL BLENDS
(2018 , Master Thesis)The demands for increasing the swirl in the combustion chamber and for decreasing the exhaust emissions on diesel engines have increased rapidly over the past few years. Consequently, the researchers’ attention has been ... -
Combustion Characteristics and Emissions of a Direct-Injection Diesel Engine Fueled with GTL Fuel Blends
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Gas to Liquids (GTL) is one of clean alternative fuels which loosely defined terms that is generally used to describe the chemical conversion of natural gas to some type of liquid products. As such, it excludes the production ... -
Combustion synthesis of bifunctional LaMO3 (M = Cr, Mn, Fe, Co, Ni) perovskites for oxygen reduction and oxygen evolution reaction in alkaline media
( Elsevier B.V. , 2018 , Article)Lanthanum based electrocatalytically active LaMO3 (M = Cr, Mn, Fe, Co, Ni) perovskites were synthesized using a single step solution combustion technique. The structural and morphological properties of the catalysts were ... -
Combustion synthesis of copper ceria solid solution for CO2 conversion to CO via reverse water gas shift reaction
( Elsevier Ltd , 2022 , Article)The reverse water–gas shift chemical (RWGS) reaction is a promising technique of converting CO2 to CO at low operating temperatures, with high CO selectivity and negligible side products. In this study, we investigate the ... -
Combustion synthesis of copper-nickel catalysts for hydrogen production from ethanol
( Elsevier B.V. , 2015 , Article)Cu and Ni based catalysts were synthesized using solution combustion synthesis method. The catalytic activity and hydrogen selectivity were investigated for ethanol decomposition reaction. The amount of fuel content in the ... -
Combustion synthesis of lanthanum oxide supported Cu, Ni, and CuNi nanoparticles for CO2 conversion reaction
( Elsevier , 2022 , Article)The reverse water gas shift (RWGS) process is considered a feasible method for lowering greenhouse gas emissions by utilizing CO2 and converting it to CO. Herein, we evaluated the catalytic conversion of CO2 through the ... -
Combustion synthesis of non-precious CuO-CeO2 nanocrystalline catalysts with enhanced catalytic activity for methane oxidation
( MDPI AG , 2019 , Article)In this study, xCuO-CeO2 mixed oxide catalysts (Cu weight ratio x = 1.5, 3, 4.5, 6 and 15 wt.%) were prepared using solution combustion synthesis (SCS) and their catalytic activities towards the methane (CH4) oxidation ... -
Combustion synthesis: A novel method of catalyst preparation
( Royal Society of Chemistry , 2019 , Article)In this chapter, we summarize work accomplished primarily by the authors on the use of solution combustion synthesis (SCS) in catalysis. Research in combustion synthesis at University of Notre Dame started with the group ... -
Combustion synthesized A0.5Sr0.5MnO3-δ perovskites (where, A = La, Nd, Sm, Gd, Tb, Pr, Dy, and Y) as redox materials for thermochemical splitting of CO2
( Elsevier B.V. , 2019 , Article)In this paper, A0.5Sr0.5MnO3 perovskites (where, A = La, Nd, Sm, Gd, Tb, Pr, Dy, and Y) were examined towards thermochemical CO2 splitting (CS) reaction. The solution combustion synthesis (SCS) method was employed for the ... -
Combustion synthesized nickel-cobalt catalyst deactivation by coking during ethanol decomposition reaction
( American Institute of Chemical Engineers , 2019 , Conference Paper)In this work, we report the catalytic dehydrogenation of ethanol over porous cobalt oxide and nickel-cobalt bimetal oxide (NiCoO2). Catalyst deactivation and the nature of carbon formation on these two catalysts are ... -
Combustion-Free Synthesis of Lithium Manganese Oxide Composites with CNTs/GNPs by Chemical Coprecipitation for Energy Storage Devices
( Qatar University Press , 2020 , Poster)Nano Spinel Lithium Manganese Oxide (LiMn2O4) was distributed properly on carbon nanotubes ( CNTs) and graphene nanoplatelets (GNPs) using chemical coprecipitation method. The original particle size was less than 40 nm, ... -
Comfort and use in building evaluation: Information modelling and post-occupancy in the built environment
( Beijing JiaoTong University , 2019 , Conference Paper)Advances in computer science and information management increasingly allow built environment professionals to envision the day when there will be 'cradle-to-grave' modelling of buildings. This will involve measurement and ... -
Comfort and use in building evaluation: Information modelling and post-occupancy in the built environment
(2019 , Conference Paper)Advances in computer science and information management increasingly allow built environment professionals to envision the day when there will be ‘cradle-to-grave’ modelling of buildings. This will involve measurement and ... -
Comfort temperature and occupant adaptive behavior in offices in Qatar during summer
( Elsevier Ltd , 2017 , Article)Qatar tops the world in per capita CO2 emissions and per capita total primary energy supply. Adaptive comfort standards and thermal comfort field survey data are not available for Qatar. We conducted a thermal comfort ... -
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 ... -
Comment on a review of methods to assess publication and other reporting biases in meta-analysis
( John Wiley and Sons Ltd , 2022 , Article)We read with interest the well-written review on the assessment of publication and other reporting biases in meta-analysis by Page et al.1 in which both funnel plots and tests for its asymmetry were described. The decision ... -
Comment on the manuscript “Histological subtype is associated with PD-L1 expression and CD8+ T-cell infiltrates in triple-negative breast carcinoma” by Salisbury et al. (Ann Diagn Pathol 2022; 57: 151901, https://doi.org/10.1016/j.anndiagpath.2022.151901)
( Elsevier , 2022 , Other)I read with great interest a recent paper written by Salisbury et al. published in the April 2022 issue of the Annals of Diagnostic Pathology [1]. In their study, the authors explored a small cohort of triple-negative ... -
Commentary: Potentially inappropriate medication among older patients with diabetic kidney disease
( Frontiers Media SA , 2023 , Other)Wang et al. (2020)’s recent report on the burden and morbidity consequences of potentially inappropriate medications (PIMs) in a select cohort of type 2 diabetic mellitus (T2DM) patients was both instructive and an “inflection ... -
Comments on Transnational Generations
( Gulf Studies center - College of Arts & Sciences - Qatar University , 2020 , Conference Paper) -
Comments on: "Fault detection for continuous-time switched systems under asynchronous switching"
( John Wiley & Sons, Ltd. , 2015 , Article)In this note, a defect occurred in Theorem 1 in the study Du et al. (Int. J. Robust Nonlinear Control 2013; doi: 10.1002/rnc.2961) is addressed. Additionally, the correction of the theorem is presented.