Impact of SARS-CoV-2 on Ambient Air Quality in Northwest China (NWC) حسب Zaib, Shah

"…The proportion of air quality Class I improved by 32.14%, and the number of days with PM2.5, SO2, and NO2 as primary pollutants decreased while they increased for PM10, CO, and O3 in 2020. …"
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Land surface temperature responses to land use dynamics in urban areas of Doha, Qatar حسب Shikha, Patel

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Land surface temperature responses to land use dynamics in urban areas of Doha, Qatar حسب Shikha, Patel

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Energy conversion of heat from abandoned oil wells to mechanical refrigeration - Transient analysis and optimization حسب Al-Khawaja, Mohammed

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The Impact of Multiple Autoclave Cycles on the Surface Roughness of Thermally Treated Nickel-Titanium Endodontic Files حسب Ba-Hattab, Raidan

"…An unsterilized group was assigned as the pre-autoclaving group (Cycle 0), and the other three groups underwent various autoclave sterilization cycles (Cycles 1, 5, and 10). The roughness average (Ra), root mean square (Rq), and average maximum peak-to-valley height (Rz) values were evaluated using SEM and ImageJ software. …"
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Association Between Sleep Duration, Food Consumption Patterns and Obesity Among Adolescents in Qatar حسب Mohammed, Sara

"…Multiple regression analysis revealed that as the WC and BMI increased, consumption of healthy eating pattern decreased by 25% and 10 % respectively (p<0.001) Conclusion: Lack of sufficient sleep and decreased consumption of healthy foods have an association with increased risk of being obese among adolescents…"
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Low cost microcontroller-based inverter integrated in PV systems حسب Salmi, Tarak

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Driver Drowsiness Detection Study using Heart Rate Variability analysis in Virtual Reality Environment حسب Chowdhury, Muhammad E.H.

"…Figure 4 shows the PSD averaged over trials for sample participants in case of active and drowsy states. As it can be seen from Fig. 4, there is a significant difference in the LF/HF ratios, as it decreased drastically from 4.164 (Fig. 4A) when subject was awake to 1.355 (Fig. 4B) when subject was drowsy. …"
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The impact of PV generation and load types on the impedance relays during both balanced and unbalanced faults حسب Kamel, Rashad M.

"…When single line to ground fault occurs at the PV bus (far from relay location), the dynamic loads increase the relay impedance, while the PV plant decreases the relay impedance. When a single phase to ground fault occurs at the relay bus (load bus), the dynamic load decreases the relay impedance, and the PV plant increases it. …"
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EV impact on the residential distribution network with smart PV inverters حسب Abdullah, Heba

"…An actual case study is modelled to acquire the nodal voltages and feeder currents. …"
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Effects of Turbulence Intensity and Biogas Composition on the Localized Forced Ignition of Turbulent Mixing Layers حسب d’Auzay, C. Turquand

"…This probability is larger than the one of finding positive values for the cases failing to reach a self-sustained flame propagation without the energy deposition assistance. …"
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Optimal Design of Cogeneration Systems Based on Flaring and Venting Streams and Accounting for the Involved Uncertainty حسب Tovar-Facio, Javier

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Fluctuations in cardiac stroke volume during rowing حسب Sejersen, Casper

"…Eight nationally competitive oarsmen (mean ± standard deviation: age 21 ± 2 years, height 190 ± 9 cm, and weight 90 ± 10 kg) rowed on an ergometer at a targeted heart rate of 130 and 160 beats per minute. …"
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Beta-caryophyllene exhibits anti-proliferative effects through apoptosis induction and cell cycle modulation in multiple myeloma cells حسب Mannino, Federica

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Garlic for cardiovascular disease: Prevention or treatment? حسب Alali, Feras Q.

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Concentration of sucrose solutions via vacuum membrane distillation حسب Al-Asheha, S.

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South-South Solutions for GCC Food Security and East African Agricultural Development: What potential role for the IsDB and Qatar North Mozambique? حسب Lambert, Laurent

"…This paper proposes new institutional arrangements for South-South cooperation in order to promote and improve inter-regional food security, with a case study taken from two regions of the West Indian Ocean. …"
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Synergetic effects of dodecylamine-functionalized graphene oxide nanoparticles on antifouling and antibacterial properties of polysulfone ultrafiltration membranes حسب Alkhouzaam, Abedalkader

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Preparation and characterization of new electrically conductive composites based on expanded graphite with potential use as remote environmental detectors حسب Prostredný, Martin

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Thermodynamic analysis of solar-driven chemical looping steam methane reforming over Cr2O3/Cr redox pair حسب Bhosale, Rahul

"…The total solar energy required to drive the CS process (Q-solar-CS) rises by 1498.8 kW as the CH4/Cr2O3 molar ratio upsurges from 0.5 to 3. In case of the CSH process, when the TL increases from 500 to 1400 K, the Q solar CSH decreases by 54.5 kW and further surge in the TL from 1400 to 2050 K yields into upturn in the Q-solar-CSH by 108.5 kW. …"
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