Browsing Research Units by Title
Now showing items 2930-2949 of 4693
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Optimizing the Extraction Conditions of Hydroxytyrosol from Olive Leaves Using a Modified Spherical Activated Carbon: A New Experimental Design
( Hindawi , 2022 , Article)The purification of hydroxytyrosol from olive leaves extract by modified activated carbon was studied experimentally in a batch system and a column by adsorption and desorption processes. The extraction yield reached 90% ... -
Optimum sintering method and temperature for cold compact Bismuth Telluride pellets for thermoelectric applications
( Qatar University Press , 2021 , Poster)This work intends to investigate the optimum sintering method and temperature that can improve the efficiency of bismuth telluride cold compact pellets for thermoelectric applications. Different p-type and n-type bismuth ... -
Optimum sintering method and temperature for cold compact Bismuth Telluride pellets for thermoelectric applications
( Elsevier , 2021 , Article)This work intends to investigate the optimum sintering method and temperature that can improve the efficiency of bismuth telluride cold compact pellets, for the thermoelectric applications. Different p-type and n-type ... -
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 ... -
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 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 ... -
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 ... -
Organizational innovation and the role of strategic planning: the case of the Dubai hotel industry
( emerald insight , 2023 , Article)Purpose In today's dynamic and competitive environment, innovation is a key requirement for hotels to survive, be profitable and sustain their competitive advantages. However, because the study of innovation in the ... -
Orientalism as a Cultural Root of Western Islamophobia
( University of Management and Technology , 2021 , Article)his paper focuses on Islamophobia as a phenomenon in the western context in order to understand its cultural roots that produce such a stereotype about Islam and the Muslims. It aims to discover these roots relying on the ... -
Origanum syriacum L. Attenuates the Malignant Phenotype of MDA-MB231 Breast Cancer Cells
( Frontiers Media , 2022 , Article)Breast cancer is the leading cause of cancer-related deaths among women. Among breast cancer types, triple negative breast cancer (TNBC) is the most aggressive, and is resistant to hormonal and chemotherapeutic treatments. ... -
Origin of TPHs and PAHs in the marine sediment nearby oil and gas extraction sites on the west coast of Qatar
( Qatar University Press , 2021 , Poster)Total Petroleum Hydrocarbons (TPHs) and Polycyclic Aromatic Hydrocarbons (PAHs) are priority pollutants, which are known to be associated with petroleum products. They are released into the marine environment via accidental ... -
ORIGINAL ARTICLE IN BEHAVIORAL PSYCHOLOGY: Relationship between social media use and disordered eating behavior among female university students in Qatar
( Edizioni FS , 2019 , Article)Introduction: Abundant literature has established the negative impact of traditional media on body image and disordered eating behaviors among young women. In the past few years, social media use has soared especially ... -
Osmotic pressure estimation using the Pitzer equation for forward osmosis modelling
( Taylor and Francis Ltd. , 2020 , Article)Forward osmosis (FO) has received widespread recognition in the past decade due to its potential low energy production of water. This study presents a new model analysis for predicting the water flux in FO systems when ... -
Our Sociomaterial Entanglement with AI
( Institute for Operations Research and the Management Sciences , 2024 , Article)Contrary to the frenzy of hyperbolic rhetoric preaching artificial intelligence (AI) as an economic imperative for nations, the way it is entangled with all aspects of our lives calls for inquiry into its meaning beyond a ... -
Outdoor continuous cultivation of self-settling marine cyanobacterium chroococcidiopsis sp.
( Mary Ann Liebert Inc. , 2018 , Article)Spontaneous settling of certain aggregating microalgae or cyanobacteria could potentially alleviate the energy requirement in biomass harvesting. A locally isolated floc-forming marine cyanobacteria, Chroococcidiopsis sp., ... -
Outdoor scale-up of Leptolyngbya sp.: Effect of light intensity and inoculum volume on photoinhibition and -oxidation
( Wiley , 2021 , Article)The effect of light intensity and inoculum volume on the occurrence of photooxidation for Leptolyngbya sp. QUCCCM 56 was investigated, to facilitate the transition from small-scale laboratory experiments to large-scale ... -
Outlook and challenges for hydrogen storage in nanoporous materials
( Springer Verlag , 2016 , Article)Considerable progress has been made recently in the use of nanoporous materials for hydrogen storage. In this article, the current status of the field and future challenges are discussed, ranging from important open ... -
Outwelling from arid mangrove systems is sustained by inwelling of seagrass productivity
( Inter-Research , 2014 , Article)Mangrove forest productivity is normally sustained by nutrients from terrestrial runoff, with freshwater inputs driving the resulting outwelling of production, but arid mangroves lack this input. The movement of material ... -
Overcoming Challenges of Applying the Systematic Review Mantra in Business Research
( SAGE Publications Ltd , 2023 , Article)This case study introduces the systematic literature review process and relays the process through its application in examining the topic of corporate social responsibility (CSR) implementation. Systematic reviews are more ...