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Enhanced PSO-Based NN for Failures Detection in Uncertain Wind Energy Systems
منشور في 2023"…The last retained features from the proposed PSO-based methods are fed to the neural network (NN) classifier. The proposed methodology improves the diagnosis abilities, reduces the computation time, and decreased the storage cost. …"
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An additive manufacturing approach based on electrohydrodynamic printing to fabricate P3HT:PCBM thin films
منشور في 2023"…We report here on the fabrication of poly(3-hexylthiophene): phenyl-C61-butyric acid methyl ester (P3HT:PCBM) thin films through the electrohydrodynamic atomization (EHDA) process and its integration as absorber layer for organic solar cells. …"
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Recyclable polyaspartate-coated magnetic nanoparticles for sustainable control of calcite and barite scales in oilfield operations
منشور في 2026"…Dynamic tube-blocking tests at 100 °C and 1000 psi further confirm effective scaling suppression for 60 min at 50 ppm, demonstrating that immobilization of PASP on a magnetic carrier preserves its intrinsic inhibitory function while enabling recyclable deployment not achievable with free PASP. …"
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Improved properties and salt rejection of polysulfone membrane by incorporation of hydrophilic cobalt-doped ZnO nanoparticles
منشور في 2024"…<p dir="ltr">In this study, the nanoparticles (NPs) of ZnO and Co<sup>2+</sup> ions doped ZnO (doped ZnO) were incorporated into a matrix of polysulfone (PSf) membranes to enhance their surface properties prepared using a simple wet phase inversion technique. The hybrid PSf membranes were fabricated with 0.5 wt. % of ZnO and doped ZnO NPs. …"
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Oxidative stress cytotoxicity induced by platinum-doped magnesia nanoparticles in cancer cells
منشور في 2021"…The cytotoxicity of Pt/MgO nanoparticles was determined via the 3-(4,5-dimethylthiazol-2-yl)−2,5-diphenyltetrazolium bromide assay on the human lung and colonic cancer cells (A549 and HT29 respectively) and normal human lung and colonic fibroblasts cells (MRC-5 and CCD-18Co repectively). …"
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Excess pCO2 and carbonate system geochemistry in surface seawater of the exclusive economic zone of Qatar (Arabian Gulf)
منشور في 2022"…Its values in the Gulf ranged from −50 to −310 μmol kg−1 implying CaCO3 precipitation. …"
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Oxidative stress cytotoxicity induced by platinum-doped magnesia nanoparticles in cancer cells
منشور في 2021"…The cytotoxicity of Pt/MgO nanoparticles was determined via the 3-(4,5-dimethylthiazol-2-yl)−2,5-diphenyltetrazolium bromide assay on the human lung and colonic cancer cells (A549 and HT29 respectively) and normal human lung and colonic fibroblasts cells (MRC-5 and CCD-18Co repectively). …"
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Comprehensive thermoeconomic, exergoeconomic, and optimization analyses of direct oxy‐combustion supercritical CO<sub>2</sub> intercooled and reheated cycles under design and off‐d...
منشور في 2022"…At optimized conditions (<i>P</i><sub>c,o</sub> = 30 MPa, Pc,o = 8 MPa, TIT = 744°C, CIT = 30°C [wet‐cooling]), the ICC shows superior energetic performance (52.08%) compared to 47.97% for DRC, 49.20% for PIC, and 48.62% for RHC. …"
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Excess pCO<sub>2</sub> and carbonate system geochemistry in surface seawater of the exclusive economic zone of Qatar (Arabian Gulf)
منشور في 2022"…Its values in the Gulf ranged from −50 to −310 μmol kg<sup>−1</sup> implying CaCO<sub>3</sub> precipitation. …"
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An Experimental Investigation of the Effects of Dressing and Grinding Parameters on Sustainable Grinding of Inconel 738 Used for Automated Manufacturing
منشور في 2023"…The results indicate that the MQL technique increases the grinding performance of Inconel 738 by reducing ground workpiece surface roughness and decreasing the coolant–lubricant consumption comparing to the conventional wet grinding process. …"
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Investigation of the Sustainable Production and Utilization of Biochar and Activated Carbon From Waste
منشور في 2023"…Out of the many food wastes, spent coffee grounds (SCG) comprise almost 15 million tons on a wet basis. Other significant solid wastes generated in Qatar include animal manures, and sewage waste. …"
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Trace element composition of size-fractionated suspended particulate matter samples from the Qatari Exclusive Economic Zone of the Arabian Gulf: the role of atmospheric dust
منشور في 2020"…Size-fractionated suspended particles were collected using net tows with mesh sizes of 50 and 200 µm to examine the composition of small- and large-size plankton populations. …"
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Impacts of twenty years of experimental warming on soil carbon, nitrogen, moisture and soil mites across alpine/subarctic tundra communities
منشور في 2022"…Long-term warming also caused loss of nitrogen, carbon and moisture from the mineral soil layer in mesic meadow, but not in wet meadow or heath or from the organic soil layer. …"
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Influence of co-current vapor flow on falling film over horizontal tube
منشور في 2021"…First, the liquid load is varied between 0.02 and 0.05 kg/(m·s), and its effects on the film thickness and the wetting time are calculated, presented and discussed. …"