Effect of Mg incorporation on the properties of PCL/Mg composites for potential tissue engineering applications حسب Sumama Nuthana Kalva (19206064)

"…However, the elastic modulus decreased by around 50% for the same composition. The thermal study revealed a significant reduction in the degradation temperature from above 400°C for pure PCL to around 300°C for PCL/Mg composite having 15% Mg. …"

A control algorithm to increase the efficient operation of wind energy conversion systems under extreme wind conditions حسب Nyam Jargalsaikhan (17380429)

"…In general, most wind turbines cut off when wind speed is over the cut-out rate; as a result, the power generation of the wind farm decreases. …"

A novel hybrid methodology for fault diagnosis of wind energy conversion systems حسب Khaled Dhibi (16891524)

"…<p>This paper proposes effective Random Forest (RF)-based fault detection and diagnosis for wind energy conversion (WEC) systems. The proposed technique involved two major steps: feature selection and fault classification. …"

Enhanced PSO-Based NN for Failures Detection in Uncertain Wind Energy Systems حسب Khaled Dhibi (16891524)

"…<p dir="ltr">Ensuring the validity of measurements in wind energy systems (WES) is a challenging task in system diagnosis and data validation. …"

Correlating the rheological and magneto-optical properties of cobalt substituted magnetite ferrofluids (Co_xFe_1−xFe₂O₄) with theoretical... حسب Blessy Babukutty (17871482)

"…An environmental friendly method of co-precipitation is applied to generate Co_xFe_1−xFe₂O₄ with variable dopant concentration (x = 0–0.8), which is deeply investigated by structural and functional property analyses of the ferrofluids. …"

Removal of Benzene and Toluene from Synthetic Wastewater by Adsorption onto Magnetic Zeolitic Imidazole Framework Nanocomposites حسب George Z. Kyzas (740387)

"…Thus, by performing the present study, the potential of Fe₃O₄/zeolite imidazolate framework nanoparticles (Fe₃O₄@ZIF-8) was evaluated for the adsorption of benzene and toluene. …"

A pathway to 25% reduction in greenhouse gas emission by 2030 using GIS-Based multi-criteria decision making for renewables, date palm (phoenix dactylifera), and carbon credits: a... حسب Hazrat Bilal (7367477)

"…Results indicated that while a considerable area is available for both wind (37%) and solar (53%) energy generation, only 6.2% and 13.8% of Qatar are highly suitable for wind and solar energy installations, respectively. …"

A new insight into the separation of oil from oil/water emulsion by Fe₃O₄–SiO₂ nanoparticles حسب Wamda Faisal Elmobarak (17058024)

"…For the oil recovery process, the Fe₃O₄ was applied for the inhibition (i.e., decrease) of oil sedimentation, and the SiO₂ NPs were applied for wettability alteration and IFT reduction. …"

Grid integration of renewable energy in Qatar: Potentials and limitations حسب Eric C. Okonkwo (14151060)

"…The hourly demand profile for electricity, cooling, and freshwater is used to investigate the impact of wind turbines, photovoltaics, and concentrated solar power integration on the environmental emissions and total annual cost of the systems. …"

Application of Fe₃O₄ magnetite nanoparticles grafted in silica (SiO₂) for oil recovery from oil in water emulsions حسب Wamda Faisal Elmobarak (17058024)

"…<p dir="ltr">In this study, an innovative magnetic demulsifier (MD) was prepared by grafting a silica layer onto the surface of the Fe₃O₄ magnetic nanoparticles (MNPs) using the modified Stober process. …"

Application of Zn-ferrite towards thermochemical utilization of carbon dioxide: A thermodynamic investigation حسب Rahul R. Bhosale (6467102)

"…The decrease in the reduction temperature is significant when the ratio of the molar flow rate of inert sweep gas to the molar flow rate of ZnFe₂O₄ increases from 10 to 30. …"

Dietary Curcumin Nanoparticles Improve Growth Performance, Oxidative Status and Immune Response of European Seabass (<i>Dicentrarchus Labrax</i>) حسب Albandari Bin-Ammar (16381128)

"…<p dir="ltr">A 90 days of feeding trial was employed for evaluating the effects of dietary supplementation with curcumin nanoparticles (CURNPs) on growth performance, hematological and biochemical parameters, immune response, antioxidant status, and intestinal and hepatic architecture in European seabass (Dicentrarchus labrax) fingerlings. Fish (n = 300, initial body weight = 10.02 g ± 0.11 g) received supplementary CURNPs at rates of 0 (control; CURNPs0), 50 (CURNPs50), 100 (CURNPs100) and 150 (CURNPs150) mg/kg diet for 90 days. …"

Exploring urban growth–climate change–flood risk nexus in fast growing cities حسب Salah Basem Ajjur (14150967)

"…Surveying showed that, between 1984 and 2020, urban areas grew by 777%, and bare lands decreased by 54.7%. In addition, Doha witnessed various climatic changes with a notable increase in air temperature (+ 8.7%), a decrease in surface wind speed (− 19.5%), and a decrease in potential evapotranspiration losses (− 33.5%). …"

Investigation of the Sustainable Production and Utilization of Biochar and Activated Carbon From Waste حسب Farah Yousef Taher Obar (19938288)

"…The SCG activated biochar at 600 °C showed a high adsorption capacity through the removal of 35 to 80 mg/g of lithium from synthetic wastewater at initial concentrations of 200 to 500 mg/L. …"

Insights on the effect of water content in carburizing gas mixtures on the metal dusting corrosion of iron حسب El Tayeb Bentria (9904024)

"…At later stage, the formation of oxide scale leads to an elevated concentration of H₂O/OH molecules on the surface due to the decrease in Fe affinity to dissociate water. This results into blocking the Fe catalytic sites leading to lower C and O diffusion to the bulk of the sample.…"

Assessment of tropospheric NO₂ concentrations over greater Doha using Sentinel-5 TROPOspheric monitoring instrument (TROPOMI) satellite data: Temporal analysis, 2018–202... حسب Yasir E. Mohieldeen (22155901)

"…Results also showed an increase in NO₂ levels during winter compared to that in summer, with wind speed being an important determining factor. …"

Energy Efficiency of UAV-Based Communication Systems Powered via Energy Harvesting Through Trajectory Optimization حسب Mohammad Abou Arkoub (19953132)

"…This approach has not only been shown to increase the energy efficiency of the drone but also decrease the carbon footprints.<p></p>…"

Ferroelectric Properties and Electrocaloric Effect in Dy2O3 Substitution on Lead-Free (Na0.5 Bi0.5)0.94 Ba0.06TiO3 Ceramic حسب Turki, O.

"…Higher stability of the ferroelectric (FE) phase was obtained at room temperature for the compositions y = 0.01, 0.02 and 0.05, with optimum values for y = 0.02 as remanent polarization Pr = 32µC/cm2, as well as piezoelectric coefficients d33 = 137 pC/N, kp = 0.27 and kt = 0.16, whereas a higher content of Dy (y = 0.08) induced a remarkable decrease of the ferroelectric and piezoelectric properties. …"
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Mixed siliciclastic-carbonate-evaporite sedimentation in an arid eolian landscape: The Khor Al Adaid tide-dominated coastal embayment, Qatar حسب John M., Rivers

"…The embayment, which was formed during the Flandrian transgression as a result of flooding across a partially fault-controlled incised fluvial drainage, is supplied by quartz-rich sands delivered by wind-blown dunes migrating southward across the surface of Qatar. …"
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Nonlinear Control of Brushless Dual-Fed Induction Generator With a Flywheel Energy Storage System for Improved System Performance حسب Mohammed Hamidat (3722086)

"…<p dir="ltr">Managing fluctuations in wind energy to ensure a stable and reliable energy supply remains a significant challenge in the operation of wind generators. …"