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السجلات المعروضة 25751 -- 25770 من 50304
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Transformer-less Boost Converter with Reduced Voltage Stress for High Voltage Step-Up Applications
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)In this paper, a new Transformer-less Boost Converter (TBC) is proposed to achieve high step-up voltage with a reduced voltage across switches. The proposed topology has the advantage of providing a high voltage gain, the ... -
Transformer-less Grid-Connected High-Voltage Marx Pulse Generator with Unity Power Factor for Domestic Drinking Water Disinfection
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Qatar has no rivers, thus the main natural water resource in Qatar is the groundwater table. The average groundwater recharge from rainfall is approximately 55.9 million m3/year, in addition to 2.2 million m3/year inflow ... -
Transformerless Microinverter with Low Leakage Current Circulation and Low Input Capacitance Requirement for PV Applications
(2017 , Master Thesis)The inevitable depletion of limited fossil fuels combined with their harmful footprint on the environment led to a global pursuit for alternative energy sources that are clean and inexhaustible. Renewable energies such as ... -
Transforming cancer clinical trials: The integral role of artificial intelligence in electronic health records for efficient patient recruitment
( Elsevier , 2023 , Article)Healthcare is one of the sectors where artificial intelligence (AI) is currently viewed as a crucial driving factor. Patient care, medical research, and clinical trial enrollment could all significantly improve due to AI's ... -
Transforming Challenges into Opportunities for Qatar’s Food Industry: Self-Sufficiency, Sustainability, and Global Food Trade Diversification
( MDPI , 2023 , Article)Food trade restrictions pose a serious risk for countries that are heavily reliant on food imports, potentially leading to food crises, inequality, and geopolitical conflicts on a global scale. However, such restrictions ... -
Transforming growth factor-β1 inhibits interleukin-1β-induced expression of inflammatory genes and Cathepsin S activity in human vascular smooth muscle cells
( John Wiley and Sons Inc , 2021 , Article)Objective and design This study investigated the opposite mechanisms by which IL-1β and TGF-β1 modulated the inflammatory and migratory phenotypes in cultured human intimal vascular smooth muscle cells vSMCs. Materials ... -
Transforming the Capabilities of Artificial Intelligence in GCC Financial Sector: A Systematic Literature Review
( Wiley , 2022 , Article)Identity and access management is a business process framework that makes it easier to maintain genuine user identities and regulate access to sensitive assets. The word "access control"refers to an organization's policy ... -
Transforming the pharmaceutical workforce in the Eastern Mediterranean Region: a call for action.
( World Health Organization , 2020 , Article)Planning and development of the pharmaceutical workforce is fundamental to achieving universal health coverage and the United Nations Sustainable Development Goals by 2030. The International Pharmaceutical Federation (FIP) ... -
Transient 3D simulations of turbulent premixed flames of gas-to-liquid (GTL) fuel in a fan-stirred combustion vessel
( Elsevier , 2021 , Article)This work aims to conduct turbulent flame studies of GTL fuel and 50/50 diesel-GTLblend and compare them to diesel under a wide range of equivalence ratio (0.7 < Ф < 1.3) and turbulence intensities (0.5 m/s < u′ < 3.0 m/s). ... -
Transient gas turbine performance diagnostics through nonlinear adaptation of compressor and turbine maps
( American Society of Mechanical Engineers (ASME) , 2015 , Article)Gas turbines are faced with new challenges of increasing flexibility in their operation while reducing their life cycle costs, leading to new research priorities and challenges. One of these challenges involves the ... -
Transient Receptor Potential Ankyrin 1 (TRPA1) Methylation and Chronic Pain: A Systematic Review
( MDPI , 2023 , Other)Background and Objective: Chronic pain represents a major global health issue in terms of psycho-physiological, therapeutic, and economic burden, not limited to adults but also to the pediatric age. Despite its great impact, ... -
Transient response of porous FG nanoplates subjected to various pulse loads based on nonlocal stress-strain gradient theory
( Elsevier Ltd , 2019 , Article)Based on nonlocal strain gradient theory (NSGT), transient behavior of a porous functionally graded (FG) nanoplate due to various impulse loads has been studied. The porous nanoplate has evenly and unevenly distributed ... -
Transient response of porous inhomogeneous nanobeams due to various impulsive loads based on nonlocal strain gradient elasticity
( Springer Netherlands , 2019 , Article)Transient vibration responses of a porosity-dependent functionally graded nanobeam under different impulsive loadings have been investigated in the context of non-local strain gradient theory. Three impulse loads of ... -
Transit Oriented Development in Disruptive Times
( Qatar University Press , 2023 , Other)This talk focuses on the future of transit oriented development (TOD), arguably one of the most sustainable forms of urbanization, in light of mobility disruptors, such as pandemics, automated and electro-mobility, shared ... -
Transit-oriented Development from the View of Traditional City Model
( Qatar University Press , 2023 , Conference Paper)Several communities have adopted the transit-oriented development (TOD) model to improve the urban form of the city. Through the TOD model, citizens are enabled and encouraged to travel by public transit and live near it, ... -
Transit-Oriented Development in West Bay, Business District of Doha, State of Qatar: A Strategy for Enhancing Liveability and Sense of Place
( Emerald Publishing Limited , 2019 , Article)Purpose – West Bay, the Business District of Doha, the capital city of the State of Qatar, is facing an urban regeneration phase due to the construction of the West Bay Central Train Station, a four-storey underground building ... -
Transition markers in Qatari university students' argumentative writing: A cross-linguistic analysis of L1 Arabic and L2 English
( Elsevier , 2023 , Article)The current cross-linguistic study compares university students' use of transition markers (addition, compare/contrast, and consequence markers) in their L1 Arabic and L2 English argumentative writing. It also explores ... -
Transition metal doped ceria for solar thermochemical fuel production
( Elsevier Ltd , 2018 , Article)In this paper, the effect of doping of transition metal cations on thermal reduction and CO2 splitting ability of Ce0.9M0.1O2−δ materials (where, M = Ni, Zn, Mn, Fe, Cu, Cr, Co, Zr) is investigated by performing multiple ... -
Transition metal nanoparticles doped carbon paper as a cost-effective anode in a microbial fuel cell powered by pure and mixed biocatalyst cultures
( Elsevier Ltd , 2018 , Article)The poor wettability and high cost of the carbonaceous electrodes materials prohibited the practical applications of microbial fuel cells (MFCs) on large scale. Here, a novel nanoparticles of metal sheathed with metal oxide ...
