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السجلات المعروضة 221 -- 240 من 314
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Plastic waste in a circular economy
( Elsevier , 2020 , Book chapter)Plastic is a commodity that supports our modern lifestyles. Its remarkable range of properties (e.g., durability, lightweight, good barrier properties) combined with the ease of processing make plastic a sustainable ... -
The Potential of Marine Microalgae for the Production of Food, Feed, and Fuel (3F)
( Multidisciplinary Digital Publishing Institute (MDPI) , 2022 , Article)Whole-cell microalgae biomass and their specific metabolites are excellent sources of renewable and alternative feedstock for various products. In most cases, the content and quality of whole-cell biomass or specific ... -
Potential of microalgae as a sustainable feed ingredient for aquaculture
( Elsevier B.V. , 2021 , Article)An increase in fish consumption, combined with a decrease in wild fish harvest, is driving the aquaculture industry at rapid pace. Today, farmed seafood accounts for about half of all global seafood demand for human ... -
Potential of novel desert microalgae and cyanobacteria for commercial applications and CO2 sequestration
( Springer Netherlands , 2019 , Article)CO2 fixation by phototrophic microalgae and cyanobacteria is seen as a possible global carbon emissions reducer; however, novel microalgae and cyanobacterial strains with tolerance to elevated temperatures and CO2 ... -
Potential utilization of waste nitrogen fertilizer from a fertilizer industry using marine microalgae
( Elsevier B.V. , 2021 , Article)This study investigated the feasibility of microalgal biomass production using waste nitrogen fertilizers (WNFs) generated by the Qatar Fertiliser Company (QAFCO). From the plant, three types of WNFs (WNF1, WNF2, and WNF3) ... -
Principles and Applicability of Integrated Remediation Strategies for Heavy Metal Removal/Recovery from Contaminated Environments
( Springer , 2022 , Article)Contamination of agricultural soils with heavy metals present lethal consequences in terms of diverse ecological and environmental problems that entail entry of metal in food chain, soil deterioration, plant growth ... -
Production and characterization of B-glucosidase from Aspergillus niger fermentation: Application for organic fraction of municipal solid waste hydrolysis and methane enhancement. Biotechnology Progress
( American Chemical Society , 2020 , Article)The anaerobic digestion of the organic fraction of municipal solid waste (OFMSW) is currently an attractive treatment process with energy production in the form of bio- gas. Hydrolysis is the rate-limiting step for the ... -
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 ...