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Now showing items 23591-23610 of 49668
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Sub-Femtojoule Hybrid Plasmonic Optical Modulator
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)A highly compact optical modulator is proposed and analyzed. The modulator is based on the hybrid plasmonic waveguide platform. The structure of the modulator is built from silicon, silver, and electro-optical polymer ... -
Subcellular protein expression models for microsatellite instability in colorectal adenocarcinoma tissue images
( BioMed Central , 2016 , Article)Background New bioimaging techniques capable of visualising the co-location of numerous proteins within individual cells have been proposed to study tumour heterogeneity of neighbouring cells within the same tissue specimen. ... -
Subchannel Assignment and Power Allocation for Time-Varying Fog Radio Access Network with NOMA
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)To satisfy future wireless network's requirements of huge capacity, ultra low delay and supermassive connectivity, it is urgent to study novel wireless communication network architecture and technology. Fog-computing radio ... -
Subcritical and Supercritical Operation of Innovative Thermal Mechanical Refrigeration System
( Qatar University Press , 2020 , Poster)Around 17% of the global generated energy is consumed for residential, commercial, and transportation refrigeration. The current cooling technologies utilize refrigerants with high Ozone Depletion and Global Warming ... -
Subcutaneous emphysema, pneumothorax, pneumomediastinum and pneumoperitoneum after upper gastrointestinal endoscopy
( NLM (Medline) , 2020 , Article)Upper gastrointestinal (GI) endoscopies are performed for several reasons. The overuse of endoscopy has negative effects on the quality of healthcare and pressurises endoscopy services. It also results in the complications. ... -
Subjective and objective quality assessment of degraded document images
( Elsevier Masson SAS , 2018 , Article)The huge amount of degraded documents stored in libraries and archives around the world needs automatic procedures of enhancement, classification, transliteration, etc. While high-quality images of these documents are in ... -
Subjective Evaluation of Market-Driven Cloud Services
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Conference Paper)We investigate the use of subjective metrics in social media to evaluate cloud service performance in the market. We first examine the subjective factors that drive cloud consumers to/from purchasing cloud services. These ... -
Submarine Cables, the Internet Backbone, and the Trade in Services
( Qatar University Press , 2020 , Poster)Submarine cables are undersea digital bridges that allow ideas and information to move across space. Submarine cables are expensive infrastructure investments and their high costs raise the question about their economic ... -
Submerged module of outer selective hollow fiber membrane for effective fouling mitigation in osmotic membrane bioreactor for desalination
( Elsevier , 2020 , Article)This paper investigated the membrane fouling mitigation efficacy and performance of a home-made submerged module containing outer selective hollow fiber thin film composite forward osmosis (OSHF TFC FO) membrane in osmosis ... -
Submerged versus side-stream osmotic membrane bioreactors using an outer-selective hollow fiber osmotic membrane for desalination
( Elsevier , 2021 , Article)This study investigated the comparative performances, fouling mitigation efficiencies, and operational costs of side-stream and submerged osmotic membrane bioreactors (OMBR) systems using an outer-selective hollow fiber ... -
Suboptimal control reconfiguration in switched multi-agent networked systems
( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)In this work, the control recovery problem in a directed network of switched multi-agent systems is studied. A distributed cooperative control strategy is proposed which ensures that the agents reach a consensus while the ... -
Subsidies vs. deposits and cost inefficiency in microfinance
( Elsevier , 2022 , Article)Lending tiny loans to poor clients lacking credit history and enough collateral is an expensive business for microfinance institutions (MFIs). Minimizing cost inefficiency is important if MFIs are to meet their dual mission ... -
Subsidy Reduction and Trends among Lower Income Qatari Households
( The Social and Economic Survey Research Institute, Qatar University , 2016 , Report)The reduction of economic subsidies (e.g., on vehicle fuel and electricity) can bring important financial and environmental benefits to Qatar, but such changes also have the potential to impact negatively the poorest Qatari ... -
Subspace based network community detection using sparse linear coding
( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)Information mining from networks by identifying communities is an important problem across a number of research fields including social science, biology, physics, and medicine. Most existing community detection algorithms ... -
Substances Secreted by Starved Human Dermal Fibroblasts Enhancing the Wound Healing Process in Rat without Scar: A Potential Acellular System for Wound Healing
( Hamad Bin Khalifa University Press , 2016 , Conference Paper)Background Despite being a major cellular component of various engineered skin substituent, underlying mechanism of successful fibroblast transplantation in wound healing is not clear. Here we show that substances derived ... -
Substantial cell apoptosis provoked by naked PAMAM dendrimers in HER2-positive human breast cancer via JNK and ERK1/ERK2 signalling pathways
( Elsevier , 2021 , Article)HER2-positive breast cancer is one of its most challenging subtypes, forming around 15–25% of the total cases. It is characterized by aggressive behavior and treatment resistance. On the other hand, poly (amidoamine) (PAMAM) ... -
Substantial toxic effect of water-pipe smoking on the early stage of embryonic development
( Oxford University Press , 2017 , Article)Water-pipe smoking (WPS) is the most widespread tobacco use in the Middle-East, and is rapidly spreading globally. Smoke from WP contains most of the compounds present in cigarette smoke, although in different proportions. ... -
Substantiation of propitious “Enzybiotic” from two novel bacteriophages isolated from a wastewater treatment plant in Qatar
( Springer Nature , 2022 , Article)Lysin of bacteriophages isolated from a particular ecosystem could be inducted as a bio-controlling tool against the inhabiting pathogenic bacterial strains. Our study aims at both experimental and computational characterization ... -
Substation expansion deferral by multi-objective battery storage scheduling ensuring minimum cost
( Elsevier Ltd , 2020 , Article)Ever-increasing consumption of the electricity in the distribution networks encounters network planners with new challenges in terms of expansion requirements. Expanding substations is a technical concern considering various ... -
Substituted 2-aminobenzothiazoles salicylidenes synthesis and characterization as cyanide sensors in aqueous medium
( MDPI AG , 2018 , Article)(E)-2-((benzo[d]thiazol-2-ylimino)methyl)-4-nitrophenol 1 and (E)-2-(((6-methoxybenzo[d]thiazol-2-yl)imino)methyl)-4-nitrophenol 2 were synthesized efficiently under microwave conditions. The structures were confirmed using ...