Browsing by Title
Now showing items 18026-18045 of 48630
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Orchestrating technology enhanced learning: A literature review and a conceptual framework
( Inderscience Publishers , 2011 , Other)The notion of 'orchestrating learning' has gained acceptance within the TEL research community in recent years. However, there is little consensus about what 'orchestration' means, and what orchestrating learning in a ... -
Order Statistics-Based Design of UWB Receivers
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)We propose a non-coherent ultra-wideband (UWB) receiver that leverages a single-sample-per-pulse threshold approach to detect the transmitted symbol and is capable of mitigating the impact of impulse noise. Unlike classical ... -
Ordered clustering: A way to simplify analysis of multichannel signals
( IEEE , 2010 , Conference Paper)We describe here new possibilities offered by a clustering method routinely used by many petroleum companies and which could be used in other applications where analysis of multichannel signals has a significant role ... -
Ordered Macro/Mesoporous TiO2 Hollow Microspheres with Highly Crystalline Thin Shells for High-Efficiency Photoconversion
( Wiley-VCH Verlag , 2016 , Article)Well ordered, uniform 3D open macro/mesoporous TiO2 hollow microspheres with highly crystalline anatase thin shells have been successfully synthesized by a simple solvent evaporation-driven confined self-assembly method. ... -
Ordered Mesoporous Alumina with Ultra-Large Pores as an Efficient Absorbent for Selective Bioenrichment
( American Chemical Society , 2017 , Article)Alumina has recently turned out to be effective in enrichment of biomacrolecules like phosphopeptides due to its good affinity to phosphor groups. Ordered mesoporous alumina (OMA) materials with high surface areas, regular ... -
Ordered mesoporous silica/polyvinylidene fluoride composite membranes for effective removal of water contaminants
( Royal Society of Chemistry , 2016 , Article)A facile one-step immersion co-precipitation method has been developed to fabricate an inorganic-organic composite membrane with three-dimensionally (3D) interpenetrating porous structures via incorporating ordered mesoporous ... -
Ordered Mesoporous Tin Oxide Semiconductors with Large Pores and Crystallized Walls for High-Performance Gas Sensing
( NLM (Medline) , 2018 , Article)Owing to their distinct chemical and physical properties, mesoporous metal oxide semiconductors have shown great application potential in catalysis, electrochemistry, energy conversion, and energy storage. In this study, ... -
Ordered porous metal oxide semiconductors for gas sensing
( Elsevier B.V. , 2018 , Article)Among various gas sensing materials, metal oxide semiconductors have shown great potential as resistive type sensors. The ordered porous structural metal oxide semiconductors with well-defined meso- or macro-pores chemically ... -
Ordered Sp -metric spaces and some fixed point theorems for contractive mappings with application to periodic boundary value problems
( Springer International Publishing , 2019 , Article)In this paper, we introduce the structure of Sp-metric spaces as a generalization of both S-metric and Sb-metric spaces. Also, we present the notions of S?-contractive mappings in the setup of ordered Sp-metric spaces and ... -
Ordered, highly zeolitized mesoporous aluminosilicates produced by a gradient acidic assembly growth strategy in a mixed template system
( American Chemical Society , 2016 , Article)Tremendous efforts have been made in recent years to synthesize ordered mesoporous zeolite materials, because of the accelerating demands of industrial bulky molecule conversion. Here, we develop a novel gradient acidic ... -
Organ-specific toxicity evaluation of stearamidopropyl dimethylamine (SAPDMA) surfactant using zebrafish embryos
( Elsevier , 2020 , Article)Surfactants are widely used in the industry of detergents, household products, and cosmetics. SAPDMA is a cationic surfactant that is used mostly in cosmetics, conditioning agents and has recently gained attention as a ... -
Organic floating gate memory structures
( Springer International Publishing , 2017 , Book chapter)[No abstract available] -
Organic fouling in forward osmosis: A comprehensive review
( MDPI AG , 2020 , Article Review)Organic fouling in the forward osmosis process is complex and influenced by different parameters in the forward osmosis such as type of feed and draw solution, operating conditions, and type of membrane. In this article, ... -
Organic materials amendments can improve NPK availability and maize growth by reducing heavy metals stress in calcareous soil
( Springer , 2023 , Article)The deficiency of nitrogen (N) and phosphorus (P) in calcareous soils of semi-arid climates is well recognized, and various green-based strategies have been employed to enhance their availability. However, the combined ... -
Organic nanostructure sensing layer developed by AAO template for the application in humidity sensors
( Springer New York LLC , 2019 , Article)The present study demonstrates a novel nanoporous structure of aluminium 1,8,15,22-tetrakis 29H,31H phthalocyanine chloride (AlPcCl) prepared by template-assisted method for a humidity sensor. The nanoporous sensing layer ... -
Organic Petrology Of Oil Shales In Quseir-Safaga District, Egypt
( Qatar University , 1992 , Article)The kerogen and hydrocarbon-generating potential of oil shales from three mining districts in the Red Sea province of Egypt have been investigated using microscopy and elemental analysis. The results reveal that, the ... -
Organic Pollutants Along The Qatari Coast: A Case Study of The Pearl Oyster (Pinctada radiata)
( Qatar University Press , 2020 , Poster)The Qatari marine environment is endangered due to high industrial expansion and anthropogenic pressure over the last few decades. The presence of common contaminants such as Total Petroleum Hydrocarbons (TPHs) and Polycyclic ... -
Organic Thin-Film Capacitive and Resistive Humidity Sensors: A Focus Review
( Wiley-VCH Verlag , 2018 , Article Review)In this paper, organic-based capacitive and resistive humidity sensors, starting from the fundamental working principles, designs, and characterization, are reviewed. The prevalent adoptions of recent technology in the ... -
ORGANIC/INORGANIC SEMICONDUCTOR BASED OPTO-ELECTRONIC DEVICES: LIGHT DETECTORS AND DYE-SENSITIZED SOLAR CELLS.
(2018 , Dissertation)Emerging opto-electronic devices (e.g. light sensors and solar cells) based on thin-film devices have been emphasized, owing to their many interesting properties including low cost, reduced weight, high flexibility and ... -
Organically modified nanoclay filled thin-film nanocomposite membranes for reverse osmosis application
( MDPI AG , 2019 , Article)This study validates, for the first time, the effectiveness of two nanoclays, that is, cloisite (CS)-15A and montmorillonite (MNT) at the polyamide (PA) active layer in the reverse osmosis (RO) membrane. Cloisite-15A is ...
