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السجلات المعروضة 228 -- 247 من 314
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Production and investigation of flexible nanofibers of sPEEK/PVP loaded with RuO2 nanoparticles
( Elsevier , 2021 , Article)Electrospinning technique was employed to fabricate composite nanofibers/nanoparticles of sulfonated polyether ether ketone, polyvinylpyrrolidone, and ruthenium oxide (sPEEK/PVP/RuO2). The samples were synthesized with ... -
Production of biolubricant from renewable feedstocks from Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference Paper)Due to increase in environmental pollution and decline in petroleum reserves, there is an increase in the demands of developing alternative renewable bio-based products. Petroleum and lubricant manufacturing companies are ... -
Production of flexible nanocomposite membranes for x-ray detectors
( Elsevier , 2020 , Article)Flexible membranes of poly(vinyl alcohol) (PVA) polymer and CuO nanoparticles for x-ray detection applications are reported in this work. PVA represents a polymer matrix for nanoparticles, and its flexibility and electrical ... -
Production of phycocyanin by Leptolyngbya sp. in desert environments
( Elsevier , 2020 , Article)Leptolyngbya sp. QUCCCM 56 was investigated as a possible alternative to A. platensis, for the production of phycocyanin-rich biomass under desert conditions. Under elevated temperatures and light intensities, of up to 40 ... -
Production of Polyhydroxyalkanoates by Two Halophilic Archaeal Isolates from Chott El Jerid Using Inexpensive Carbon Sources
( MDPI AG , 2020 , Article)The large use of conventional plastics has resulted in serious environmental problems. Polyhydroxyalkanoates represent a potent replacement to synthetic plastics because of their biodegradable nature. This study aimed to ... -
Promoting sustainable businesses for strong local communities: Qatar's wild herbal plants industry
( Elsevier , 2020 , Article)Herbal medicine can improve economic diversification and sustainable livelihoods of local communities. In fact, the demand for herbal medicine is increasing globally while policymakers also value non-economic benefits, ... -
Protective effect of olive leaves phenolic compounds against neurodegenerative disorders: Promising alternative for Alzheimer and Parkinson diseases modulation
( Elsevier , 2022 , Article)The main objective of this work was to review literature on compounds extracted from olive tree leaves, such as simple phenols (hydroxytyrosol) and flavonoids (Apigenin, apigenin-7-O-glucoside, luteolin.) and their diverse ... -
Pt-doped armchair graphene nanoribbon as a promising gas sensor for CO and CO2: DFT study
( Elsevier , 2021 , Article)In this work, four armchair graphene nanoribbon (AGNR) based sensor materials were built using Atomistic ToolKit Virtual NanoLab (ATK-VNL) and utilized to detect carbon monoxide (CO) and carbon dioxide (CO2) gases. First, ... -
Purification and biochemical characterization of a novel thermostable protease from the oyster mushroom Pleurotus sajor-caju strain CTM10057 with industrial interest
( BMC , 2019 , Article)Background Proteases are hydrolytic enzymes that catalyze peptide linkage cleavage reactions at the level of proteins and peptides with different degrees of specificity. This group draws the attention of industry. More ... -
Pyrolysis Process as a Sustainable Management Option of Poultry Manure: Characterization of the Derived Biochars and Assessment of their Nutrient Release Capacities
( MDPI , 2019 , Article)Raw poultry manure (RPM) and its derived biochars at temperatures of 400 (B400) and 600 ◦C (B600) were physico-chemically characterized, and their ability to release nutrients was assessed under static conditions. The ... -
Pyrolytic elimination of ethylene from ethoxyquinolines and ethoxyisoquinolines: a computational study
( Nature Research , 2023 , Article)This work reports a thermo-kinetic study on unimolecular thermal decomposition of some ethoxyquinolines and ethoxyisoquinolines derivatives (1-ethoxyisoquinoline (1-EisoQ), 2-ethoxyquinoline (2-EQ), 3-ethoxyquinoline (3-EQ), ... -
Qatar Culture Collection of Microalgae: A Sustainable Source for Biodiesel Production and Omega Fatty Acid Compounds
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Microalgae are photosynthetic microorganisms that can grow in different environments (sea water, fresh water, waste water soil, rocks…) and under various conditions (Light, pH, temperature, salinity…). During their phases ... -
Qatar University culture collection: A source of biodiversity and numerous applications
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Microalgae are photosynthetic microorganisms that can grow in different environments (sea water, fresh water, waste water soil, rocks….) and under various conditions (Light, pH, temperature, salinity….). During their phases ... -
Qatar: A Valuable Resource for Autochthonous Micrlgae with High Potential for Biofuel Production and Food Security
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Algae-derived products, in particular biodiesel, have received increased interest over recent years due to their advantages over fossil fuel derived products. The ability of algae to grow in different qualities of water, ... -
A quest for the Arabian atom? Geopolitics, security, and national identity in the nuclear energy programs in the Middle East
( Elsevier , 2020 , Article)Nuclear energy programs are currently under formalization in countries of the Gulf Cooperation Council (GCC), with the first power plants in the United Arab Emirates (UAE) due to be operational in 2020, and Saudi Arabia's ... -
Realizing algae value chains in arid environments: an Arabian Peninsula perspective
( Elsevier , 2022 , Article)Algae are a promising feedstock for the sustainable production of feed, fuels, and chemicals. Especially in arid regions such as the Arabian Peninsula, algae could play a significant role in enhancing food security, economic ... -
Regional Environmental Cooperation: The (Lost) Potential for a Sustainable Future in the Arabian/Persian Gulf
( Springer Nature , 2021 , Book chapter)Environmental concerns related to the health of the marine ecosystems, the negative impacts of coastal infrastructure and the deterioration of water quality (e.g., increasing salinity and warming trends of the Gulf waters) ... -
Regulation reform process and perception in the Palestinian water sector
( Taylor & Francis , 2018 , Article)The study analyzes the regulation reform process of the Palestinian urban water sector. It introduces the holistic reform agenda and examines the water supply sector’s performance and regulation challenges. The study also ... -
Regulation reform process and perception in the Palestinian water sector
( Routledge , 2018 , Article)The study analyzes the regulation reform process of the Palestinian urban water sector. It introduces the holistic reform agenda and examines the water supply sector?s performance and regulation challenges. The study also ... -
Rethinking infrastructure rehabilitation: Conflict resilience of urban water and energy supply in the Middle East and South Sudan
( Elsevier , 2021 , Article)Protracted armed conflicts in the Middle East and Africa are heavily impacting the infrastructure of basic services such as water, energy, healthcare, and education. People adapt to these persistent conditions through ...