Effect of reinforcement concentration on the properties of hot extruded Al-Al2O3 composites synthesized through microwave sintering process حسب Reddy, M. Penchal

"…Results showed that, as the content of hard ceramic particles increases, it improves overall mechanical properties including microhardness, 0.2% yield strength, ultimate compression/tensile strength, and Young's modulus while the ductility and co-efficient of thermal expansion decreases. XRD patterns and SEM/EDS mapping images show a uniform distribution of Al2O3 particles in the Al matrix. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Food shopping during the COVID-19 pandemic: an exploratory study in four Near Eastern countries حسب Ben Hassen, Tarek

"…Firstly, respondents decreased their shopping frequency and, as a result, increased the amount of food purchased each trip. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

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

"…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. …"
احصل على النص الكامل
احصل على النص الكامل

Development of Inorganically Cross-Linked Sulfonated Polyacrylamide Preformed Particle Gels for Conformance Control: Impact of Anionic Groups حسب Elaf, Reem

"…These PPGs function as superabsorbents, capable of absorbing water at a ratio of 100-700 times their dry weight while maintaining adequate gel strength up to 2709 Pa. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Combined effects of treated domestic wastewater, fly ash, and calcium nitrite toward concrete sustainability حسب Abushanab, Abdelrahman

احصل على النص الكامل
احصل على النص الكامل

Prevalence and Phylogenetic Analysis of Parvovirus (B19V) among Blood Donors with Different Nationalities Residing in Qatar حسب Abdelrahman, Doua

"…B19V genotyping showed a predominance of Genotype 1 (100%). Sequence analysis of the NS1-VP1u region revealed 139 mutation sites, some of which were amino acid substitutions. …"
احصل على النص الكامل
احصل على النص الكامل

Trends and Appropriateness of Sodium-glucose Co-transporter 2 Inhibitors Use in Qatar حسب Zaghloul, Nancy

"…Empagliflozin prescribing showed an increase over dapagliflozin, which decreased by the end of 2018. SGLT2is were prescribed for appropriate indication in 400 (100%) patients studied, while inappropriate dosing was found in 13 (3%) patients. …"
احصل على النص الكامل

Prospects Of Amino Acids And Ionic Liquids As Natural Gas Hydrate Inhibitors For Offshore Flow Assurance حسب Qureshi, M. Fahed Aziz

"…The effect of stirring on the hydrate crystal formation at different stirring rates (100-1400 RPM) was also investigated. It was found that a threshold limit exists for the stirring rate, above and below which no hydrate formation is likely to occur within the selected system. …"
احصل على النص الكامل

Global disease burden attributed to low physical activity in 204 countries and territories from 1990 to 2019: Insights from the Global Burden of Disease 2019 Study حسب Ammar, Achraf

"…The age-standardized rates of low-PA-related deaths and DALYs per 100,000 people in 2019 were 11.1 (95% UI 5.7 to 19.5) and 198.4 (95% UI 108.2 to 360.3), respectively. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Allelopathic effects of the invasive Prosopis juliflora (sw.) Dc. On seed germination of selected Qatari native plant species حسب Bibi, Shazia

"…In order to achieve the goals, aqueous extract of P. juliflora was made by immersing 100 g/l of powdered parts of plant in warm distilled water (∼50°C) for 24 hours with regular mixing. …"
احصل على النص الكامل
احصل على النص الكامل