Browsing by Title
Now showing items 615-634 of 49153
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A Comparison between Natural Pozzolana and Fly Ash Replacements on the Mechanical Properties of Concrete
( Qatar University Press , 2023 , Conference Paper)This study investigates the effect of Natural Pozzolana (NP) and Fly Ash (FA) substitutes on concrete's mechanical and microstructural properties. Mixes containing 10 - 50 % cement substitute ratios were prepared and tested ... -
A comparison between the effectiveness of PBL and LBL on improving problem-solving abilities of medical students using questioning
( Routledge , 2018 , Article)In daily patient-history taking and diagnosis practice, doctors ask questions to gather information from patients and narrow down diagnostic hypotheses. Training medical students to be efficient problem solvers through the ... -
A Comparison of change management guidelines to address technology adoption barriers: A case study of higher educational institutions
( Little Lion Scientific , 2019 , Article)Emerging technologies are bolstering the development in the world in all the domains of the world. Education sector is an example of such innovation, by basing on which new means of pedagogy and andragogy are being explored ... -
A comparison of ground vibration due to ballasted and slab tracks
( Elsevier Ltd , 2019 , Article)With the development of non-ballasted track forms (often referred to as slab tracks) over the few last decades, it is important to understand their behaviour with respect to ground-borne vibration compared with the traditional ... -
A comparison of neighborhood-scale interventions to alleviate urban heat in Doha, Qatar
( MDPI AG , 2019 , Article)Recent evidence suggests that many densely populated areas of the world will be uninhabitable in the coming century due to the depletion of resources, climate change, and increasing urbanization. This poses serious questions ... -
A COMPARISON OF SPORTS MARKETING AND SPORTS PSYCHOLOGY APPROACHES TO ACHIEVE GYM MEMBERS LOYALTY IN QATAR
(2021 , Master Thesis)This thesis investigated the effects of two different pathways to achieve gym members loyalty. The first path is a marketing path that is built around the customer engagement concept, driven by perceived quality, satisfaction, ... -
A comparison of students with and without disabilities on their perception of services in Qatar?s public higher education system
( Emerald Group Publishing Ltd. , 2018 , Article)Purpose: The purpose of this paper is to assess student perceptions of their engagement in tangible and intangible higher education services using the College Student Experiences Questionnaire (CSEQ). Design/methodology/approach: ... -
A comparison of the Ranging behaviour and habitat use of the Ethiopian hedgehog (Paraechinus aethiopicus) in Qatar with hedgehog taxa from temperate environments
( NaturePublishingGroup , 2018 , Article)We investigated seasonal changes in the ecology and behaviour of the Ethiopian hedgehog (Paraechinus aethiopicus) in Qatar, particularly in respect to differences in behaviour between hedgehogs living in arid environments ... -
A Comparison Study in the Management of Ectopic Pregnancy between State of Qatar and Kingdom of Bahrain
( Hamad bin Khalifa University Press (HBKU Press) , 2007 , Article)Ectopic pregnancy is of increasing concern to gynecologists since it is a major cause of maternal mortality and morbidity in reproductive age women. It occurs when the conceptus implants in an abnormal position other than ... -
A comparison study on performance of thin film composite membrane embedded with graphene oxide for Acetaminophen, Diclofenac and Ibuprofen separation from waste water
( Elsevier , 2023 , Article)Pharmaceuticals and personal care products (PPCPs) are one of the threats to water safety and security. These contaminants are hard to be removed due to toxicity and resistant to breakdown. In this study, thin film composite ... -
A component map tuning method for performance prediction and diagnostics of gas turbine compressors
( Elsevier Ltd , 2014 , Article)In this paper, a novel compressor map tuning method is developed with the primary objective of improving the accuracy and fidelity of gas turbine engine models for performance prediction and diagnostics. A new compressor ... -
A comprehensive analysis of bio-inspired design of femoral stem on primary and secondary stabilities using mechanoregulatory algorithm
( Springer Science and Business Media Deutschland GmbH , 2020 , Article)The coated porous section of stem surface is initially filled with callus that undergoes osseointegration process, which develops a bond between stem and bone, lessens the micromotions and transfers stresses to the bone, ... -
A comprehensive and critical review on recent progress in anode catalyst for methanol oxidation reaction
( Taylor and Francis Ltd. , 2022 , Article Review)The synthesis of anode electrocatalyst with high activity and durability for methanol oxidation reaction has been one of the main focuses of researchers in recent years. Several works are reviewed in this paper to summarize ... -
A comprehensive annual delivery program for upstream liquefied natural gas supply chain
( Elsevier , 2016 , Article)Developing a cost-effective annual delivery program (ADP) is a challenging task for liquefied natural gas (LNG) suppliers, especially for LNG supply chains with large number of vessels and customers. Given significant ... -
A comprehensive impedance journey to continuous microbial fuel cells
( Elsevier , 2015 , Article)The aim of the present work was to characterize the impedance response of an air-cathode MFC operating in a continuous mode and to determine intrinsic properties that define its performance which are crucial to be controlled ... -
A comprehensive overview of feature representation for biometric recognition
( Springer , 2020 , Article)The performance of any biometric recognition system heavily dependents on finding a good and suitable feature representation space where observations from different classes are well separated. Unfortunately, finding this ... -
A comprehensive production method of self-cryoprotected nano-liposome powders
( Elsevier , 2015 , Article)This study provided a convenient approach for large scale production of hydrogenated soya phosphatidylcholine nano-liposome powders using beclometasone dipropionate as a model drug and sucrose as proliposome carrier. ... -
A comprehensive review of COVID-19 detection techniques: From laboratory systems to wearable devices
( Elsevier , 2022 , Article Review)Screening of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) among symptomatic and asymptomatic patients offers unique opportunities for curtailing the transmission of novel coronavirus disease 2019, commonly ... -
A comprehensive review of electrocoagulation for water treatment: Potentials and challenges
( Academic Press , 2017 , Article Review)Electrocoagulation is an effective electrochemical approach for the treatment of different types of contaminated water and has received considerable attention in recent years due its high efficiency in dealing with numerous ... -
A comprehensive review of hydrogen generation by water splitting using 2D nanomaterials: Photo vs electro-catalysis
( Elsevier , 2023 , Article)Transition metal carbides/nitrides (MXenes) with eccentric properties are emerging 2D nanomaterials with intriguing applications in the photo and electro-catalytic water splitting (Wsp). MXenes have a regular planer structure ...
