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381
Optimization of design and operation of solar assisted district cooling systems
منشور في 2020"…Moreover, the existence of the cold-water TES in the system depends on the chosen chiller capacity and the cooling demand of the case study. Furthermore, a sensitivity analysis was carried out to study the model robustness. …"
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382
Influence of shelf-life duration on mechanical, thermal and shape recovery motion derivatives of shape memory polyurethane
منشور في 2024"…In addition, Differential scanning calorimetry (DSC)exhibited a decrease in glass transition temperature (Tg) from S1 to S10, resulting in a corresponding reduction in the rate of shape restoration. …"
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383
Economic consequences of the covid 19 outbreak
منشور في 2021"…The last part of the project is talking about the lockdown in UAE and the decrease of cases of covid and the people in UAE should always have the green pass to access the public sectors finally all the UAE citizens must be vaccinated in order to be safe .…"
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384
Wasted Da’am: Evaluating the Impact of Food Waste Management Practices on the Environment in Hotels in Qatar
منشور في 2025"…This thesis examines the impact of food waste management strategies on the environment in hotels in Qatar, utilizing a difference-in-differences regression analysis and in-depth interviews with executive chefs in 5-star hotels in Lusail and Msheireb, Qatar. …"
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385
Improved properties and salt rejection of polysulfone membrane by incorporation of hydrophilic cobalt-doped ZnO nanoparticles
منشور في 2024"…The hydrophilicity of PSf membranes was improved by adding of ZnO and doped ZnO NPs which showed a decrease in contact angle values from 82° to 62° with an increased flux with water. …"
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386
Improving pediatric trauma care: an automated system for wrist trauma detection using GELAN
منشور في 2025"…Our proposed framework surpassed the most advanced techniques, showcasing exceptional precision and effectiveness, achieving a mean average precision (mAP50) score of 74.1%, 95%, and 85.5% for Task A (trauma detection), Task B (fracture detection), and Task C (fracture severity detection), respectively. …"
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387
Solar hydrogen production via thermochemical magnesium oxide – Magnesium sulfate water splitting cycle
منشور في 2020"…Overall analysis confirms that although the rise in the molar flow rate of Ar from 1 to 50 mol/s results in a decrease in the thermal reduction temperature from 1490 K to 1282 K, the solar-to-fuel energy conversion efficiency is adversely affected and reduces from 47.7% to 18.1%. …"
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388
Effect of speed and gradient on plantar force when running on an AlterG® treadmill
منشور في 2021"…Gradient made little difference except for a downhill grade of − 5% decreasing force peaks as compared to level or uphill running.…"
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389
Heat transfer measurements of Polyalpha-Olefin- boron nitride nanofluids for thermal management and lubrication applications
منشور في 2020"…</p><h2>Other Information</h2><p dir="ltr">Published in: Case Studies in Thermal Engineering<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.csite.2020.100776" target="_blank">https://dx.doi.org/10.1016/j.csite.2020.100776</a></p>…"
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390
PD-L1 Expression in Human Breast Cancer Stem Cells Is Epigenetically Regulated through Posttranslational Histone Modifications
منشور في 2019"…The active demethylation of PD-L1 promoter was confirmed by the increase in the distribution of 5hmC and decrease in 5mC levels and the upregulation of TET3 and downregulation of DNMTs enzymes in MCF-7 tumorspheres, compared with the cell line. …"
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391
Water Footprint Assessment and Virtual Water Trade in the Globally Most Water-Stressed Country, Qatar
منشور في 2023"…In contrast, virtual water imports fluctuated over the years, in 2016 and 2018 substantial rises in virtual water imports were apparent followed by a steady decrease. Looking at the national water consumption, virtual water imports and exports, it is evident that Qatar’s water imports and exports are drastically higher than its local consumption. …"
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392
Dispatchable capacity optimization strategy for battery swapping and charging station aggregators to participate in grid operations
منشور في 2023"…Also, the aggregator does not worsen the original power load while meeting the EV swapping demand and can decrease the daily load fluctuations by 0.65% and 12.89%, reduce the peak–valley difference by 5.81% and 7.80%, and increase the load rate by 3.67% and 4.08% in working and non-working day situations through providing the dynamic dispatchable capacity for the grid.…"
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393
Endocrine contribution to the sexual dysfunction in patients with advanced chronic kidney disease and the role of hyperprolactinemia
منشور في 2021"…Patients treated with cabergoline (<i>n</i> = 26) showed a significant increase in LH levels (<i>p</i> = .003) and a significant decrease in prolactin levels (<i>p</i> = .003). …"
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394
Hydrogen energy systems: Technologies, trends, and future prospects
منشور في 2024"…<p dir="ltr">This review critically examines hydrogen energy systems, highlighting their capacity to transform the global energy framework and mitigate climate change. Hydrogen showcases a high <u>energy density</u> of 120 MJ/kg, providing a robust alternative to <u>fossil fuels</u>. …"
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395
Unraveling the future productivity burden of cardiovascular disease in Qatar: Investigating the modifiable risk factors control in type 2 diabetes
منشور في 2025"…The financial value of PALYs was determined based on the gross domestic product (GDP) per full-time worker (i.e. US$80,573). The base-case model estimated the productivity burden of CVD, and interventional scenarios were simulated to assess potential gains resulting from improved control of modifiable risk factors, including reduced incidence of T2D, lower systolic blood pressure (SBP), decreased number of smokers, and reduced total cholesterol. …"
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396
Walking around the preferred speed: examination of metabolic, perceptual, spatiotemporal and stability parameters
منشور في 2024"…While metabolic, perceptual and spatiotemporal values were sensitive to the smallest change in speed (i.e., 0.5 km·h<sup>−1)</sup>, a significant increase in the rate of carbohydrate oxidation and decrease in % fat oxidation were only observed at speeds above PWS. …"
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397
Production and investigation of flexible nanofibers of sPEEK/PVP loaded with RuO2 nanoparticles
منشور في 2021"…The samples were synthesized with different concentrations of hydrous ruthenium chloride of 2 wt%, 5 wt%, and 10 wt%, and then annealed at a temperature of 300 °C for 4 h to form the ruthenium oxide nanoparticles. …"
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398
Characterizing the dynamics of climate and native desert plants in Qatar
منشور في 2024"…These findings suggest a continued decrease in vegetation coverage, leading to more drought seasons and impacting water and food security. …"
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399
Dispatchable capacity optimization strategy for battery swapping and charging station aggregators to participate in grid operations
منشور في 2023"…Also, the aggregator does not worsen the original power load while meeting the EV swapping demand and can decrease the daily load fluctuations by 0.65% and 12.89%, reduce the peak–valley difference by 5.81% and 7.80%, and increase the load rate by 3.67% and 4.08% in working and non-working day situations through providing the dynamic dispatchable capacity for the grid.…"
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400
Effect of anions on the structural, morphological and dielectric properties of hydrothermally synthesized hydroxyapatite nanoparticles
منشور في 2019"…For the particles obtained from nitrate, acetate, chloride and egg shell precursors respectively give dielectric constant (εʹ) values of 9.96, 13.22, 9.92 and 10.86 at 5 MHz. The εʹ and dielectric loss (εʹʹ) values for the HA nanoparticles decrease with increase in the applied frequency as well. …"