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Now showing items 5159-5178 of 50260
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CO2 sorption kinetics of scaled-up polyethylenimine-functionalized mesoporous silica sorbent
( American Chemical Society , 2015 , Article)Two CO2 solid sorbents based on polyethylenimine, PEI (Mn ∼ 423 and 10K), impregnated into mesoporous silica (MPS) foam prepared in kilogram quantities via a scale-up process were synthesized and systematically characterized ... -
CO2 transportation safety regulations and energy requirement
( Elsevier , 2022 , Book chapter)Carbon dioxide transportation from the capture point to the utilization or storage point plays a key function in carbon capture and storage systems. CO2 transportation modes (onshore pipelines, offshore pipelines, and ... -
Co2+ substituted for Bi3+ in BiVO4 and its enhanced photocatalytic activity under visible LED light irradiation
( Royal Society of Chemistry , 2019 , Article)We investigated the fabrication of Co-doped BiVO4 (Bi1-xCoxVO4+δ, 0.05 < x < 0.5) by the substitution of Co ions for Bi sites in BiVO4. The X-ray diffraction (XRD), Raman, and X-ray photoelectron spectroscopy (XPS) results ... -
CO<inf>2</inf> solubility in aqueous potassium lysinate solutions at absorber conditions
( Academic Press , 2017 , Article)In this work, CO2 solubility in aqueous potassium lysinate solutions has been measured for the concentrations of (1.25–3.28) mol·kg−1 and at temperatures of (313–343) K. The vapour-liquid equilibrium data were correlated ... -
COACT: a query interface language for collaborative databases
( Springer New York LLC , 2018 , Article)Data curation activities in collaborative databases mandate that collaborators interact until they converge and agree on the content of their data. In a previous work, we presented a cloud-based collaborative database ... -
Coagulant recovery and reuse for drinking water treatment
( Elsevier Ltd , 2016 , Article)Coagulant recovery and reuse from waterworks sludge has the potential to significantly reduce waste disposal and chemicals usage for water treatment. Drinking water regulations demand purification of recovered coagulant ... -
Coal fly ash supported CoFe2O4 nanocomposites: Synergetic Fenton-like and photocatalytic degradation of methylene blue
( Elsevier , 2022 , Article)Rapid industrialization is causing a serious threat for the environment. Therefore, this research was aimed in developing ceramic cobalt ferrite (CoFe2O4) nanocomposite photocatalyst coated with coal fly ash (CFA-CoFe2O4) ... -
Coalitional double auction for spatial spectrum allocation in cognitive radio networks
( IEEE , 2014 , Article)Recently, many dynamic spectrum allocation schemes based on economics are proposed to improve spectrum utilization in cognitive radio networks (CRNs). However, existing mechanisms do not take into account the economic ... -
Coalitional Game-Based Cooperative Computation Offloading in MEC for Reusable Tasks
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)Mobile-edge computing (MEC) has been a promising solution for Internet-of-Things (IoT) applications to obtain latency reduction and energy savings. In view of the loosely coupled application, multiple devices can use the ... -
Coastal Development and Climate Risk Reduction in the Persian/Arabian Gulf: The case of Qatar
( Cambridge University Press , 2019 , Book chapter)limate change consideration in coastal developments in the GCC regions are neither adequately studied nor incorporated into specific policies. The rapid pace of coastal development seeks to accommodate short-term to mid-term ... -
Coastal State Regulation of Bunkering and Ship-to-Ship (STS) Oil Transfer Operations in the EEZ: An Analysis of State Practice and of Coastal State Jurisdiction Under the LOSC
( taylor and francis online , 2019 , Article)While the United Nations Convention on the Law of the Sea (LOSC) expressly allocates jurisdiction in regard to several activities that are conducted in the exclusive economic zone (EEZ), it does not do so for bunkering and ... -
Cobalt oxide nanopowder synthesis using cellulose assisted combustion technique
( Elsevier Ltd , 2016 , Article)Cobalt oxides nanopowders were prepared using novel cellulose assisted combustion synthesis and solution combustion synthesis techniques. The synthesis conditions were optimized to produce high surface area cobalt oxide ... -
Cobalt phthalocyanine as a novel molecular recognition reagent for batch and flow injection potentiometric and spectrophotometric determination of anionic surfactants
( Elsevier B. V. , 2008 , Article)Cobalt(II) phthalocyanine [Co(II)Pc] is used as both an ionophore and chromogen for batch and flow injection potentiometric and spectrophotometric determination of anionic surfactants (SDS), respectively. The potentiometric ... -
Coccoliths From Some Paleogene Rocks In The Gulf Of Suez Area, Egypt
( Qatar University , 1992 , Article)This paper describes and illustrates the calcareous nannoplankton (coccoliths) recorded in 240 samples collected from the Paleogene rocks in Wadi Belayim/Wadi Nukhul surface sections. Gulf of Suez area. Egypt. Thirty species ... -
A Code of Conduct for Tourists Visiting Qatar for the World Cup 2022
( Qatar University Press , 2020 , Article)This Code of Conduct for Tourist who are visiting Qatar for the World Cup 2022 covers the fundamental rights and duties that must be observed and implemented such as the right to movement, travel and safety and obtaining ... -
CODE: Computation Offloading in D2D-Edge System for Video Streaming
( IEEE , 2022 , Article)Video traffic over the Internet is increasing rapidly, reaching up to 82% of the total Internet traffic by 2022. This enormous growth of video traffic which also include immersive video content (augmented reality ... -
Coded Caching for Time-Varying Files Popularities and Asynchronous Delivery
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)Data communication has seen exponential growth recently, and it currently dominates wireless communication. As a result, proactive caching was developed to minimize peak traffic rates by storing content, in advance, at ... -
Codifying the corporate opportunity doctrine: The (UK) Companies Act 2006
( Bloomsbury Qatar Foundation Journals , 2012 , Article)Part 10 of the UK Companies Act 2006 codifies the fiduciary and common law duties of directors as a means of addressing the key policy considerations which underpinned the company law reform project launched by the Labour ...
