Browsing Academic by Title
Now showing items 21851-21870 of 26170
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Unexpected presentation of ischemic colitis: a case report and review of the literature.
( Oxford University Press , 2023 , Other)Ischemic colitis accounts for many cases of bowel infarction. Usually, it has various manifestations, such as vomiting, abdominal pain, hematochezia and many other symptoms. Risk factors might include age, medications, ... -
Unfair Payment Issues in Construction: Re-Thinking Alternative Payment Method For Tier-1 Contractors to Subcontractors
( Qatar Univesrity Press , 2020 , Conference Paper)Recent statistics reveal substantial increase in late payments cases from 18% to 27%; with over £30 billion unpaid invoices to UK contractors. Furthermore, 82% of overdue invoices are monies owed to subcontractor by tier-1 ... -
Unified energy management and load control in building equipped with wind-solar-battery incorporating electric and hydrogen vehicles under both connected to the grid and islanding modes
( Elsevier Ltd , 2019 , Article)This paper presents a unified model for home energy management. The proposed model optimizes the cogeneration of wind, solar, and battery storage units. The introduced tool considers electric and hydrogen vehicles and ... -
A unified framework for bias assessment in clinical research
( Lippincott, Williams & Wilkins , 2019 , Article)Methodological flaws, limitations, and inadequate practices in research are well known and pose threats to the internal validity of any research study. However, there are ways of safeguarding research conduct to reduce the ... -
Unified Performance Analysis for Multiuser Mixed η - μ and M - Distribution Dual-Hop RF/FSO Systems
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Article)A mixed free-space optical (FSO) communication scheme is considered with the help of a fixed gain relay. We assume that the links from the source to the relay are radio frequency links with multiuser diversity operating ... -
Unified power flow controller for low voltage ride through capability of wind-based renewable energy grid-connected systems
( IEEE , 2011 , Conference Paper)Due to the large increase in number of installed high power renewable energy generating systems such as wind energy power plants, one of the important evolving requirement is riding through the fault at low or zero voltage. ... -
Uniform fractional factorial design tables for energy piles with maximum thermal conductance
( WITPress , 2017 , Conference Paper)Energy Piles are the heat exchangers of Ground Source Heat Pumps (GSHP) that transfer the buildings heat to the lower temperature shallow ground reducing the energy consumption in the cooling of buildings. These piles are ... -
Uniform Ordered Two-Dimensional Mesoporous TiO2 Nanosheets from Hydrothermal-Induced Solvent-Confined Monomicelle Assembly
( American Chemical Society , 2018 , Article)Two-dimensional (2D) nanomaterials have been the focus of substantial research interest recently owing to their fascinating and excellent properties. However, 2D porous materials have remained quite rare due to the difficulty ... -
Unifying the diagnosis of gestational diabetes mellitus: Introducing the NPRP criteria
( Elsevier , 2021 , Article)AimsDisagreement about the appropriate criteria for the diagnosis of gestational diabetes mellitus (GDM) persists. This study examines an alternative approach which combines information from all time-points on the glucose ... -
Unipolar Single Reference Multicarrier Sinusoidal Pulse Width Modulation Based 7-level Inverter with Reduced Number of Semiconductor Switches for Renewable Energy Applications
( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)In the present scenario of increasing power demand and depletion of fossil fuel results in the research advancements in the field of renewable energy sources. Among various types of renewable energy sources, photovoltaic ... -
Unique associations of the Job Demand-Control-Support model subscales with leisure-time physical activity and dietary energy intake
( National Institute of Occupational Safety and Health , 2018 , Article)Leisure-time physical activity (LTPA) and dietary energy intake are two important health behaviours, which at too low or high levels respectively, are associated with overweight and obesity. This study explores associations ... -
Unique Structural Design and Construction Challenges for Al Bustan South Project in Qatar
( Qatar Univesrity Press , 2020 , Conference Paper)The Al Bustan Street South (ABS) Expressway Project features the longest dual carriageway bridges in Qatar spanning 2.6 km each, with a minimum of four lanes in each direction from south of Al Waab Street to south of Rayyan ... -
United Nations Model Law on Access to Justice in Criminal Justice Systems
( United Nations , 2017 , Article)The right to criminal defence is an internationally recognized and fundamental right that entitles anyone who is charged with a criminal offence to legal advice, assistance and representation. As such, the right to ... -
United States accreditation in higher education: does it dilute academic freedom?
( Routledge , 2024 , Article)US higher education accreditation agencies provide external quality evaluation for institutions and programmes to deliver quality control and assurance. Although there is ample discussion about the benefits and drawbacks ... -
Universal health coverage for mental health: the contribution of clinical pharmacists
( Springer , 2021 , Article)The patterns of morbidity and mortality have dramatically changed over the last 100 years. Before the 1950s, the most common causes of death were infectious diseases and as public health and medical interventions developed, ... -
Universal large-order asymptotic behavior of the strong-coupling and high-temperature series expansions
( American Physical Society , 2022 , Article)For theories that exhibit second-order phase transition, we conjecture that the large-order asymptotic behavior of the strong-coupling (high-temperature) series expansion takes the form σnnb where b is a universal ... -
Universal power law behavior of the AC conductivity versus frequency of agglomerate morphologies in conductive carbon nanotube-reinforced epoxy networks
( John Wiley and Sons Inc. , 2016 , Article)The Jonscher universal power law for ac conductivity versus frequency (f = /2) in the dispersion region was tested for a multiwall carbon nanotube/epoxy nanocomposite. The effect of changes in agglomerate morphology on the ... -
A universal transportation model for reverse osmosis systems
( Elsevier Ltd , 2021 , Article)This paper presents a new transport model for reverse osmosis (RO) systems, which combines irreversible thermodynamics, together with solution-diffusion theory. The simplifications adopted by the classical theory for ... -
Universalizability and the metaphysics of moral particularism, specified
( Blackwell Publishing Ltd , 2018 , Article)[No abstract available] -
Universities as Guardians of Man's cultural heritage: Leaders in Cultural Development.
( Qatar University , 1981 , Conference Paper)
