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Now showing items 24240-24259 of 51556
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Structural Design Of Arch Profile And Depth — A Computer-Aided Study
( Qatar University , 1991 , Article)This paper presents a comparative study of some of the best known and widely used arch profiles, in an endeavour to investigating their structural performance and to determining optimum arch form and depth. Arch profiles ... -
Structural Determination of the Broadly Reactive Anti-IGHV1-69 Anti-idiotypic Antibody G6 and Its Idiotope
( Elsevier (Cell Press) , 2017 , Article)The heavy chain IGHV1-69 germline gene exhibits a high level of polymorphism and shows biased use in protective antibody (Ab) responses to infections and vaccines. It is also highly expressed in several B cell malignancies ... -
Structural Efficiency of Steel Stiffening Deck Systems in Suspension Bridges Due to Gravity Loads
( Qatar Univesrity Press , 2020 , Conference Paper)In this paper, suspended stiffened decks in suspension bridges are considered. Three steel deck-stiffening systems are compared structurally; the plate girder, the box girder and the stiffening truss. A three-span continuous ... -
Structural Elements And Formation Parameters For Some Lower Cretaceous Sequences In The Western Desert, Egypt
( Qatar University , 1987 , Article)The Lower Cretaceous sequences in the northern part of the Western Desert has been penetrated by many of drilled bore—holes adopted by different oil companies. It was encountered at depths ranging from 1200 to 3500 m. The ... -
A Structural Equation Model of Perceived University Image In Qatar: Student Perspective
( IAEME Publication , 2020 , Article)The aim of this research is to examine the factors that influence student perceptions of the image of Qatar’s national university, Qatar University. The study is constructed on related research on perceptions of ... -
Structural equation modeling of public transport use with COVID-19 precautions: An extension of the norm activation model
( Elsevier , 2021 , Article)This study aims to identify the travelers' attitudes and preferences towards the use of public transport during COVID-19 through the Norm-Activation Model (NAM). A questionnaire survey was designed to assess the traveler's ... -
Structural equation modeling of public transport use with COVID-19 precautions: An extension of the norm activation model
( Elsevier , 2021 , Article)This study aims to identify the travelers’ attitudes and preferences towards the use of public transport during COVID-19 through the Norm-Activation Model (NAM). A questionnaire survey was designed to assess the traveler’s ... -
Structural evaluation, preliminary in vitro stability and electrochemical behavior of apatite coatings on Ti6Al4V substrates
( Elsevier Ltd , 2016 , Article)Medical-grade alloys, such as Ti-6Al-4V, have been used for fixation of fractured bone and for the total replacement of defective bone. Their bioactivity could be improved by applying a bone-like apatite layer onto their ... -
Structural health monitoring installation scheme using utility computing model
( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)In view of intensified disasters and fatalities caused by natural phenomena, there is a pressing need for an efficient environment logging that provides structural information to administrators for a better management and ... -
Structural Health Monitoring Using Wireless Sensor Networks: A Comprehensive Survey
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Article)Structural health monitoring (SHM) using wireless sensor networks (WSNs) has gained research interest due to its ability to reduce the costs associated with the installation and maintenance of SHM systems. SHM systems have ... -
Structural health monitoring with self-organizing maps and artificial neural networks
( Springer New York LLC , 2020 , Conference Paper)The use of self-organizing maps and artificial neural networks for structural health monitoring is presented in this paper. The authors recently developed a nonparametric structural damage detection algorithm for extracting ... -
Structural influence of chromium substituted magnetite ferrofluids on the optical and antibacterial characteristics
( Elsevier Ltd , 2023 , Article)A series of chromium substituted magnetite (CrxFe1?xFe2O4) ferrofluids with various concentrations ranging from x = 0-0.8 is reported in this work. Simple, cost effective and gentle co-precipitation method is followed for ... -
Structural modeling of p.V31F variant in the aspartoacylase gene.
( Springer Verlag , 2016 , Article)Aspartoacylase (ASPA) is an abundant enzyme in the brain, which catalyzes the conversion of N-acetylaspartate into acetate and aspartate, deficiency in its activity leads to degeneration of the white matter of the brain ... -
Structural performance and moment redistribution of basalt FRC continuous beams reinforced with basalt FRP bars
( Elsevier , 2021 , Article)This study investigated the structural performance and moment redistribution of basalt fiber reinforced concrete (BFRC) continuous beams reinforced with basalt fiber reinforced polymers (BFRP) bars. A total of 10 reinforced ... -
Structural properties of rice husk and its polymer matrix composites: An overview
( Elsevier Inc. , 2017 , Book chapter)There has been enormous interest in natural fiber application as reinforcing filler due to the interests in renewable raw materials and more environmentally friendly and sustainable resources. Rice husk (RH), a natural ... -
Structural properties, crystal quality and growth modes of MOCVD-grown AlN with TMAl pretreatment of sapphire substrate
( Institute of Physics Publishing , 2017 , Article)The growth of high quality AlN epitaxial films relies on precise control of the initial growth stages. In this work, we examined the influence of the trimethylaluminum (TMAl) pretreatment of sapphire substrates on the ... -
Structural studies of bio-mediated NiO nanoparticles for photocatalytic and antibacterial activities
( Elsevier B.V. , 2020 , Article)Nickel Oxide (NiO) nano-sized sample was bio-synthesized by a microwave-assisted route consuming citrus variety fruit juice. The prepared NiO sample was investigated by various spectroscopy techniques. The X-ray diffractogram ... -
Structural topology optimization considering complexity
( American Society of Civil Engineers (ASCE) , 2017 , Conference Paper)As topology optimization is a free-form approach to optimizing structural layout, it has a tendency to design structures that are topologically complex. In large-scale structures, this complexity drives construction costs ... -
Structural, dielectric and ferroelectric properties of lead-free Na0.5Bi0.5TiO3 ceramics prepared by spark plasma sintering technique
( Scientific Publishers , 2016 , Article)Lead-free Na0.5Bi0.5TiO3 (NBT) fine-grained ceramics were prepared by spark plasma sintering method. Single phase ceramics with an ABO3 perovskite structure were confirmed by X-ray diffraction method. The grain morphology ... -
Structural, mechanical and thermal characteristics of Al-Cu-Li particle reinforced Al-matrix composites synthesized by microwave sintering and hot extrusion
( Elsevier Ltd , 2019 , Article)In this study, Al-Cu-Li (5, 10 and 15 vol%) alloy particles reinforced Aluminum matrix composites were synthesized by powder metallurgy route incorporating microwave sintering and hot extrusion processes. The effects of ...
