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السجلات المعروضة 5469 -- 5488 من 25697
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Defensive or competitive Autonomous Vehicles: Which one interacts safely and efficiently with pedestrians?
( Elsevier , 2022 , Article)The emergence of Autonomous Vehicles (AVs) could provoke unexpected challenges in urban traffic environments. One such crucial challenge is the conflicts between pedestrians and AVs, particularly on unsignalized mid-block ... -
Definitions of educational leadership 'Arab educators' perspectives
( Routledge , 2019 , Article)This study aims to provide a general overview of how educational leadership is defined by Arab educators and education specialists in the Arab region, concentrating on the State of Qatar. The study builds on insights from ... -
Definitions of educational leadership – Arab educators’ perspectives
( Taylor & Francis , 2019 , Article)This study aims to provide a general overview of how educational leadership is defined by Arab educators and education specialists in the Arab region, concentrating on the State of Qatar. The study builds on insights from ... -
Deformation modes and crashworthiness energy absorption of sinusoidally corrugated tubes manufactured by direct metal laser sintering
( Elsevier Ltd , 2019 , Article)Thin-walled structures are used for crashworthiness energy absorption applications such as automobile vehciles and aircraft. Structures of sinusoidally corrugated profiles were of great interest because of their ability ... -
Degeneration and the demos in North Africa: towards a ‘critical’ study of democratisation?
( Taylor & Francis , 2023 , Article)This article frames the problematic explored in the Special Issue, namely, the Maghreb and North Africa's ‘crisis of democratization.' Across cases, the crisis is multi-layered, involving first, counter-revolution since ... -
Degradation analysis in mixed (MAPbI3 and MAPbBr3) perovskite solar cells under thermal stress
( Springer New York LLC , 2019 , Article)The current study provides an insight into the thermal stability of perovskite solar cells (PSCs) and the factors causing their degradation. To this end, a systematic stability study was carried out on n-i-p type perovskite ... -
Degradation of 4-chlorophenol through cooperative reductive and oxidative processes in an electrochemical system
( Elsevier B.V. , 2023 , Conference Paper)Electrochemical treatment can be an effective approach for degrading recalcitrant organic contaminants because its anode/cathode produces powerful oxidizing/reducing conditions. Herein, through the cooperation of the ... -
Degradation of Diallyl Phthalate (DAP) by fenton oxidation: Mechanistic and kinetic studies
( MDPI AG , 2018 , Article)In this work, the degradation and mineralization of Diallyl Phthalate (DAP) in water by Fenton oxidation was investigated. The effects of different experimental parameters including the initial pH, the hydrogen peroxide ... -
Degradation of hydroxychloroquine by electrochemical advanced oxidation processes
( Elsevier , 2020 , Article)In this work, the degradation of hydroxychloroquine (HCQ) drug in aqueous solution by electrochemical advanced oxidation processes including electrochemical oxidation (EO) using boron doped diamond (BDD) and its combination ... -
Degradation of Organic Methyl Orange (MO) Dye Using a Photocatalyzed Non-Ferrous Fenton Reaction
( MDPI , 2023 , Article)Removal of recalcitrant organic pollutants by degradation or mineralization from industrial waste streams is continuously being explored to find viable options to apply on the commercial scale. Herein, we propose a ... -
Degradation-fragmentation of marine plastic waste and their environmental implications: A critical review
( Elsevier , 2022 , Article Review)This review critically evaluates the plastic accumulation challenges and their environmental (primarily) and human (secondarily) impacts. It also emphasizes on their degradation and fragmentation phenomena under marine ... -
Degrees of Freedom of the Full-Duplex Asymmetric MIMO Three-Way Channel with Unicast and Broadcast Messages
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Conference Paper)In this paper, we characterize the total degrees of freedom (DoFs) of the full-duplex asymmetric multiple-input multiple- output (MIMO) three-way channel. Each node has a separate-antenna full-duplex MIMO transceiver with ... -
Dehydration of Ethanol over HF-treated Al2 O3 using the GC-column as Chemical Reactor
( Qatar University , 1981 , Article)The effect of treating •y-alumina with hydrofluoric acid on the dehydration reaction of ethanol was investigated at 325°C. The gas chromatographic column was used as a chemical reactor. The rate of formation of ethylene ... -
Delay Damages: The Application of Qatari National to Article 8(8) of the 2017 Red Book
( Brill Academic Publishers , 2020 , Article)This article addresses a common conundrum when a government is a party to a Red Book contract, that is governed by Qatari national law: the inter-relationship between national law and the voluntarily agreed-upon contractual ... -
Delay minimization through joint routing and resource allocation in cognitive radio-based mesh networks
( IEEE , 2012 , Conference Paper)We consider wireless mesh networks in which the nodes are utilizing cognitive radios and try to opportunistically gain access to spectrum resources. In such networks, the timely delivery of the traffic is a challenging ... -
Delay or travel time information? The impact of advanced traveler information systems on drivers’ behavior before freeway work zones
( Elsevier , 2022 , Article)Peak travel times contribute to congestion formation at freeway work zones. Advanced Traveler Information Systems (ATIS) can inform drivers in real-time about the delays and travel times en-route and can provide information ... -
Delay-Aware Flow Scheduling in Low Latency Enterprise Datacenter Networks: Modeling and Performance Analysis
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Article)Real-time interactive application workloads (e.g., Web search, social networking, and so on) appear in the form of a large number of mini requests and responses flowing over the datacenters' networks. They end up being ... -
Delay-Aware Scheduling and Resource Optimization with Network Function Virtualization
( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)To accelerate the implementation of network functions/middle boxes and reduce the deployment cost, recently, the concept of network function virtualization (NFV) has emerged and become a topic of much interest attracting ... -
Delays in radical prostatectomy for prostate cancer and survival outcomes.
( Springer Verlag , 2018 , Article)A recent publication in your journal, involving 619 Canadian patients undergoing radical prostatectomy (RP), suggests increased delays to time of surgery may be associated with higher rates of biochemical recurrence(BCR)1 ... -
Deletion of potD, encoding a putative spermidine-binding protein, results in a complex phenotype in Legionella pneumophila
( Elsevier GmbH , 2014 , Article)L. pneumophila is an intracellular pathogen that replicates in a membrane-bound compartment known as the Legionella-containing vacuole (LCV). We previously observed that the polyamine spermidine, produced by host cells or ...
