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Performance assessment of an integrated absorption cooling-hydrogen liquefaction system using geothermal energy
Published 2013“…The results show that the mass of hydrogen gas pre-cooled by the absorption system per unit mass flow rate of geothermal water flowing through the system (n) and the amount of hydrogen liquefied per unit mass flow rate of geothermal water flowing through the system (y) increase with an increase in the geothermal source temperature. …”
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162
The genetic basis and the diagnostic yield of genetic testing related to nonsyndromic hearing loss in Qatar
Published 2024“…Thus, we recommend using <i>GJB2</i> gene sequencing as a first-tier genetic test and HL gene panel as a second-tier genetic test for NSHL. …”
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An improved non-dimensional model of wet-cooling towers
Published 2020“…The first method shows a maximum decrease of 4.4 per cent in error, whereas in the second method, the maximum error was found to be 3.3 and 6.8 per cent when the inlet air was unsaturated and saturated, respectively. …”
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165
Impact of staying at home measures during COVID-19 pandemic on the lifestyle of Qatar’s population: Perceived changes in diet, physical activity, and body weight
Published 2021“…Participants reported increased sitting/reclining time (1.94 h/day mean increase), screen times (2.05 h/day mean increase) with p < 0.001, and decreased exercise time (0.11 h/day mean reduction) with p < 0.001. …”
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Application of Fe<sub>3</sub>O<sub>4</sub> magnetite nanoparticles grafted in silica (SiO<sub>2</sub>) for oil recovery from oil in water emulsions
Published 2021“…Using an MD<sub>dose</sub> as low as 10 mg/L attained a %<sub>hdem</sub> in the range of 93% - 4.3% for O/W mixtures with C<sub>oil</sub> < 2000 mg/L, which slightly decreased to ~90% for higher concentrations. The reported %R<sub>oil </sub>(p-value <0.05) was >90 ± 0.1 for tests carried out with pH 7 and C<sub>sur </sub>0.1 g/L and declined at higher pH and Csur to % 86.5 due to the increase in emulsion stability. …”
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167
Artificial neural network algorithms. (c1999)
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Introducing Extended Data on Terrorist Groups (EDTG), 1970 to 2016
Published 2020“…Unlike most extant group data sets, the extended data on terrorist groups (EDTG) is not tied to terrorist groups and attacks listed in the RAND terrorism data; rather, EDTG is linked to terrorist groups and attacks given in the Global Terrorism Database. …”
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170
Modeling circadian clock–cell cycle interaction effects on cell population growth rates
Published 2014“…Particularly, we show that Cry 1, Cry 2 mutations decrease the growth rate of cells, Per 2 mutation enhances it and Bmal 1 knockout increases it for autonomous periods of the cell cycle less than 21 h and decreases it elsewhere. …”
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171
Trends and levels of the global, regional, and national burden of appendicitis between 1990 and 2021: findings from the Global Burden of Disease Study 2021
Published 2024“…Although the global age-standardised incidence rate of appendicitis has steadily decreased between 1990 and 2021, almost half of GBD regions saw an increase of greater than 10% in their age-standardised incidence rates. …”
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172
The new accounting standard IFRS 9 and its impact on how banks should provision for credit losses
Published 2019“…Moreover, IFRS 9 impacts many capital ratios such as Capital Adequacy Ratio (CAR) and Common Equity Tier 1 (CET 1). The findings and results of the interview questions were that the new standard will impact the provision part of the banks but this impact will not be dramatic. …”
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The effect of Hydrogen Peroxide treatments on dental enamel porosity and protein structure and its long-term implications on tooth hardness and optical properties
Published 2025“…ObjectiveThe aim of this study is to investigate how hydrogen peroxide (HP) treatments affect enamel porosity and protein structure, as well as their impact on tooth shade and hardness over time. MethodsFifty healthy teeth were collected from adult patients. …”
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Agent Based Modeling to Optimize Supermarkets Spatial Dimensions
Published 2019“…It is the situation where the shoppers feel that the supermarket is overloaded with people at certain times. We solved this problem by providing an optimal area range for the supermarket where we reduced the crowding levels dramatically, while avoiding unnecessary increase in space dimensions. …”
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Influence of natural gas composition on adsorption in calcite Nanopores: A DFT study
Published 2021“…Compared to the flat surface, for both molecules, CH<sub>4</sub> and CO<sub>2</sub>, the interaction energy of the molecule with the nanopore could increase to more than five times depending on pore radius and molecule type. …”
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Do high energy-efficient buildings increase overheating risk in cold climates? Causes and mitigation measures required under recent and future climates
Published 2022“…While without adequate ventilation, the overheating risk in high-energy-efficient buildings can be higher than old buildings, where decreasing wall and window U-values and infiltration rate has a greater contribution to the increase of indoor temperature, while decreasing window SHGC has a lower contribution to the decrease in indoor temperature compared to the case with adequate ventilation. …”
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On the selection of constitutive equation for modeling the friction stir processes of twin roll cast wrought AZ31B
Published 2014“…On average, the ZA6 equation showed improvements in solution time by 5.4% as compared with the Johnson–Cook equation and almost identical solution time (0.9% increase) with that of the ST equation. …”
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Multi-Agent Variational Approach for Robotics: A Bio-Inspired Perspective
Published 2023“…The same idea is checked for exploration time. Thus, we conclude that the results obtained for the proposed MAE-PAO algorithm provide significant advantages in terms of enhanced map exploration with lower execution times and nearly no failed runs.…”
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Determinants of research productivity and efficiency among the Arab world’s accredited business schools
Published 2023“…These findings offer valuable insights for the region’s business schools to benchmark their research performance and gain a nuanced understanding of the factors that contribute to increased research productivity and impact. The study concludes that business schools in the Arab region must continue to enhance their publication rates in top-tier journals, foster improved international collaborations, and implement new research incentive schemes and excellence initiatives that recognize and reward high-quality research.…”
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Renewable Energy Consumption and Carbon Emissions: Evidence from an Oil-Rich Economy
Published 2022“…The results reveal that renewable energy consumption has a negative impact on CO<sub>2</sub> emissions, while real GDP per capita has a positive effect. According to the findings, a 1% increase in renewable energy consumption leads to a 0.26% decrease in consumption-based CO<sub>2</sub> emissions, while a 1% rise in real GDP per capita leads to a 0.46% rise in consumption-based CO<sub>2</sub> emissions. …”