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41
The influence of different preparation methods on the erosion behavior of NiP-ZrO<sub>2</sub> nanocomposite coating
منشور في 2023"…The results shows that the erosion rate decreases linearly with increasing angle of incidence and increases with increasing particle velocity. …"
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42
A robust experimental-based artificial neural network approach for photovoltaic maximum power point identification considering electrical, thermal and meteorological impact
منشور في 2020"…The results showed a decrease in the MSE of V<sub>mp</sub> by 74.3% (from 1.6 V to 0.411 V), and in the MSE of I<sub>mp</sub> by 95% (from 4.4e−6 A to 2.16e−7 A), respectively. …"
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43
Orthodontic camouflage versus orthodontic-orthognathic surgical treatment in borderline class III malocclusion: a systematic review
منشور في 2022"…Regarding the vertical jaw relation, one study reported a significant decrease in mandibular plane inclination in OC and a significant increase in OOS. …"
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44
Utilization of the internet for physical activity and diet information and its influence on pregnant women’s lifestyle habits in Qatar
منشور في 2023"…</p><h3>Results</h3><p dir="ltr">A total of 327 pregnant women (mean age of 29.5 years ± 4.0) completed and returned the questionnaire (response rate: 87.5%). …"
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45
Dynamic Change in Insulin Resistance Induced by Free Fatty Acids Is Unchanged Though Insulin Sensitivity Improves Following Endurance Exercise in PCOS
منشور في 2018"…Skewed data were log transformed and expressed as mean ± SEM.</p><h3>Results</h3><p dir="ltr">Before exercise, women with PCOS had a higher HOMA-IR and lower VO2 max than controls. …"
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46
Double versus triple arthrodesis for adult-acquired flatfoot deformity due to stage III posterior tibial tendon insufficiency: a prospective comparative study of two cohorts
منشور في 2022"…The mean Hibbs angle decreased from 153.07 to 142.32° (MD = 10.54°, p < 0.001). …"
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47
Diesel engine vibration analysis using artificial neural networks method: Effect of NH<sub>3</sub> additive in biodiesels
منشور في 2024"…This study aimed to use artificial neural networks (ANN) to model and analyse diesel engine vibration characteristics at different engine speeds using NH<sub>3</sub> as an additive in hazelnut (HD), peanut (PD), and waste-cooking oil (WD) biodiesels. …"
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48
Towards Industry 4.0 and Sustainable Manufacturing Applying Environmentally Friendly Machining of a Precipitation Hardened Stainless Steel Using Hot Turning Process
منشور في 2023"…Moreover, it has been shown that by increasing preheating temperature in hot turning, the hardness of the carbides in the workpiece decreases more than the hardness of the tool substrate and reduces coating materials, consequently reducing cutting tool abrasion wear phenomenon.…"
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49
Exploring urban growth–climate change–flood risk nexus in fast growing cities
منشور في 2022"…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%). …"
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50
Reinforced steering Evolutionary Markov Chain for high-dimensional feature selection
منشور في 2024"…(v) The effective size of successful agents is reduced recursively while progressing through different states to further facilitate the speed of convergence and decrease the number of features. …"
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51
Excess pCO2 and carbonate system geochemistry in surface seawater of the exclusive economic zone of Qatar (Arabian Gulf)
منشور في 2022"…CO2 is lost from the Gulf due to gas exchange, decreasing DIC, and reducing pCO2 to 464 μatm, similar to that observed. …"
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52
Worldwide trends in blood pressure from 1975 to 2015: a pooled analysis of 1479 population-based measurement studies with 19·1 million participants
منشور في 2017"…Global age-standardised prevalence of raised blood pressure was 24·1% (21·4–27·1) in men and 20·1% (17·8–22·5) in women in 2015. Mean systolic and mean diastolic blood pressure decreased substantially from 1975 to 2015 in high-income western and Asia Pacific countries, moving these countries from having some of the highest worldwide blood pressure in 1975 to the lowest in 2015. …"
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53
Simulation of the size-composition distribution of atmospheric nanoparticles over Europe
منشور في 2018"…The ground level concentrations of particles with a diameter larger than 100 nm (N100) were reproduced with a daily normalized mean error of 40 % and a daily normalized mean bias of −20 %. …"
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54
Understanding the phenomenon of saltwater intrusion sourced from desalination plants at coastal aquifers
منشور في 2023"…Miscible displacements of potassium bromide were observed from a column of 2.0–2.8 mm aggregates of sepiolite over 4 ranges of concentration and at 11 displacement speeds under saturated vertical flow deionized water and vice versa. …"
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55
Portfolio Selection Problem Using CVaR Risk Measures Equipped with DEA, PSO, and ICA Algorithms
منشور في 2022"…It was found that when solving the Mean-CVaR model with evolutionary algorithms, the risk decreased. …"
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56
Which factor explains the life‐history of <i>Xanthium strumarium</i> L., an aggressive alien invasive plant species, along its altitudinal gradient?
منشور في 2022"…Among climatic variables, mean yearly temperature, mean annual yearly humidity, and mean day length in hours, while in soil variables, organic matter and nitrogen percentage significantly affect the phenological and morphological stages. …"
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57
Land surface temperature responses to land use dynamics in urban areas of Doha, Qatar
منشور في 2024"…The LST data derived from remote sensing sources demonstrates an upward trend for summer and a contrasting trend for winter. Specifically, the mean summer LST increases by 7.64 °C (0.34 °C annually), and the mean winter LST decreases by 4.87 °C (0.22 °C annually). …"
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58
Global, regional, and national burden of household air pollution, 1990–2021: a systematic analysis for the Global Burden of Disease Study 2021
منشور في 2025"…We first estimated the mean fuel type-specific concentrations (in μg/m3) of fine particulate matter (PM2·5) pollution to which individuals using solid fuels for cooking were exposed, categorised by fuel type, location, year, age, and sex. …"
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59
Mental health, burnout and resilience in community pharmacists during the COVID-19 pandemic: A cross-sectional study
منشور في 2022"…Participants had shown moderate resilience (mean score: 27.64 (SD = 8.31)) and their mean score fear of COVID19 was 15.67 (SD = 6.54). …"
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60
Excess pCO<sub>2</sub> and carbonate system geochemistry in surface seawater of the exclusive economic zone of Qatar (Arabian Gulf)
منشور في 2022"…CO<sub>2</sub> is lost from the Gulf due to gas exchange, decreasing DIC, and reducing pCO<sub>2</sub> to 464 μatm, similar to that observed. …"