Browsing Qatar University Institutional Repository by Title
Now showing items 19727-19746 of 26422
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T-tetrominoes tiling's Markov chain mixes fast
( Elsevier B.V. , 2018 , Article)Korn and Pak (2007) [3] conjectured that there exists a fully polynomial randomized approximation scheme (fpras) for approximating the number of ways of tiling a 4n x 4m rectangular lattice with T-tetrominoes. Using a flow ... -
Tachykinins and the potential causal factors for post-COVID-19 condition
( Elsevier , 2023 , Article Review)The most prevalent symptoms of post-COVID-19 condition are pulmonary dysfunction, fatigue and muscle weakness, anxiety, anosmia, dysgeusia, headaches, difficulty in concentrating, sexual dysfunction, and digestive disturbances. ... -
Tacit Choice of Law Applicable to International Commercial Contracts: The Hague Principles and Arab Laws Compared
( Brill , 2023 , Article)This article deals with the law tacitly chosen by the parties to govern their international commercial contracts. It shows the method by which The 2015 Hague Principles on Choice of Law in International Commercial Contracts ... -
Tactile device based on opto-mechanical actuation of liquid crystal elastomers
(2014 , Article)Nematic elastomers are promising materials for the fabrication of actuators due to their ability to reversibly contract and expand during phase transitions triggered by external stimuli. Thus, actuation can be produced on ... -
Tag-based personalized recommendation in social media services
( Springer New York LLC , 2016 , Article)Users of ambient intelligence environments have been overwhelmed by the huge numbers of social media available, thus identifying the social media tailored to the user?s need is becoming an important question to be discussed. ... -
Tahaqqaq: A Real-Time System for Assisting Twitter Users in Arabic Claim Verification
( Association for Computing Machinery, Inc , 2023 , Conference Paper)Over the past years, notable progress has been made towards fighting misinformation spread over social media, encouraging the development of many fact-checking systems. However, systems that operate over Arabic content are ... -
Tail Fracture Planes of Autotomy in Geckos
( Qatar University , 1993 , Article)The structure of the tail facture planes was morphologically and histologically studied in two species of geckoid lizards, living in Qatar, Cyrtodactylus scaber and Bunopus tuberculatus. The fracture plane is formed of a ... -
Tail Regeneration after Autotomy in the Geckonid Lizard Bunopus Tuberculatus
( Qatar University , 1993 , Article)Tail regeneration in the geckonid lizard, Banopus tuberculatus was morphologically and histologically studied after induced atutomy. Seventy percent of the tail of each animal, by length, was removed by autotomy. Regeneration ... -
Tailored fabrication of iridium nanoparticle-sensitized titanium oxynitride nanotubes for solar-driven water splitting: Experimental insights on the photocatalytic-activity-defects relationship
( Royal Society of Chemistry , 2020 , Article)Understanding the photocatalytic-activity-defects relationship of titanium oxynitride nanotubes (TiON-NTs) is important for tailoring their photocatalytic performance. Herein, we fabricated highly ordered and vertically ... -
A tailored innovative model of “research internship” aimed at strengthening research competencies in STEM undergraduates
( Emerald Publishing Limited , 2024 , Article)Purpose: Research internships are integral components of undergraduate programs that nurture students' skill sets. However, the current trend of these internships adopting a direct apprenticeship model, often termed ... -
A Tailored, Bundle Care Intervention Strategy to Reduce Cardiac Mortality During the Hajj: A Population-Based, Before and After Study.
( SAGE Publications , 2019 , Article)Hajj is the largest human gathering with over 2 million people. We evaluated the effect of bundle care intervention on mortality. A population-based, before and after study compared the effect of an intervention on mortality. ... -
Tailoring electrocatalytic properties of Pt nanoparticles grown on Ti3C2Tx MXene surface
( Electrochemical Society, Inc. , 2019 , Article)In this work, the spontaneous and NaBH4-induced reduction of chloroplatinic acid on the surface of Ti3C2TX MXene was investigated to synthesize a hybrid PtNP-decorated MXene nanomaterial (MX-Pt) with potential as hydrogen ... -
Tailoring of the thermal, mechanical and dielectric properties of the polypropylene foams using gamma-irradiation
( Elsevier Ltd , 2016 , Article)This study investigate the influence of gamma-irradiation (GI) doses from 0 up to 50 kGy on the polypropylene (PP) foams, mainly the impact on their structural and physical properties. It was found that structural properties ... -
Tailoring optical absorption in silicon nanostructures from UV to visible light: A TDDFT study
( Elsevier Ltd , 2016 , Article)The utilization of silicon nanostructures, from quantum dots to nanowires, for photovoltaic applications depends on understanding the effect of their physical structure on their optical absorption properties. In this work, ... -
Tailoring Organic Cation of 2D Air-Stable Organometal Halide Perovskites for Highly Efficient Planar Solar Cells
( Wiley-VCH Verlag , 2017 , Article)2D perovskites have recently been shown to exhibit significantly improved environmental stability. Derived from their 3D analogues, 2D perovskites are formed by inserting bulky alkylammonium cations in‐between the anionic ... -
Tailoring the defects of sub-100 nm multipodal titanium nitride/oxynitride nanotubes for efficient water splitting performance
( Royal Society of Chemistry , 2021 , Article)Deciphering the photocatalytic-defect relationship of photoanodes can pave the way towards the rational design for high-performance solar energy conversion. Herein, we rationally designed uniform and aligned ultrathin ... -
Tailoring the deposition of MoSe2 on TiO2 nanorods arrays via radiofrequency magnetron sputtering for enhanced photoelectrochemical water splitting
( Elsevier , 2023 , Article)MoSe2/1 D TiO2 nanorods (NRs) heterojunction assembly was systematically fabricated, and its photoelectrocatalytic properties were investigated. The fabrication process involves the growth of 1D TiO2 NRs arrays on FTO ... -
Tailoring the efficiency of an active catalyst for CO abatement through oxidation reaction: The case study of samarium-doped ceria
( Elsevier Ltd , 2018 , Article)In the present study, for the first time we tailored organic chemistry traditional synthesis tools towards preparation of CexSm1-xO2 (x = 0.2, 0.5, 0.8, 1) fluorite-type mixed oxides which are used for CO abatement. In ... -
Tailoring the reducibility and catalytic activity of CuO nanoparticles for low temperature CO oxidation
( Royal Society of Chemistry , 2018 , Article)Copper oxide (CuO) nanoparticles have received considerable interest as active and inexpensive catalysts for various gas–solid reactions. The CuO reducibility and surface reactivity are of crucial importance for the high ... -
Takagi–Sugeno fuzzy based power system fault section diagnosis models via genetic learning adaptive GSK algorithm
( Elsevier B.V. , 2022 , Article)To effectively deal with the operating uncertainties of protective relays and circuit breakers existing in the power system faults, an improved fault section diagnosis (FSD) method is proposed by using Takagi–Sugeno fuzzy ...
