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221
Performance of Acacia Gum as a Novel Additive in Thin Film Composite Polyamide RO Membranes
منشور في 2019"…It was found that the use of AG as an additive to TFC PA membranes increased the membrane’s hydrophilicity (by 45%), surface charge (by 16%) as well as water flux (by 1.2-fold) compared with plain PA membrane. …"
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222
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223
"Thunderstorm distribution and frequency in Saudi Arabia"
منشور في 2005احصل على النص الكامل
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224
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225
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226
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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227
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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228
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229
Alterations in Beta Cell Identity in Type 1 and Type 2 Diabetes
منشور في 2019"…However, it is equally likely that this may be a reflection of new cell formation as a frank regenerative response to ongoing tissue injury. …"
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230
Trade Flow and Nation Brand Distance: A Structural Gravity Model Approach
منشور في 2021"…Further, economies-of-scale explains trade among countries like the US and other developed countries where they have similar technologies, similar production costs, and to some extent similar nation brand aspects. …"
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231
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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232
Breast cancer cells and bone marrow mesenchymal stromal cells
منشور في 2017"…Materials and methods Conditioned medium and direct cell–cell contacts experiments were used to investigate the effect of bone marrow-derived mesenchymal stromal cells (MSCs), osteoprogenitor-like cells (MG-63) and osteosarcoma cells (SaOS-2) on luminal-like (MCF-7) and basal-like (MDA-MB-231) BCCs flow cytometry was used to assess the purity of isolated BCCs and osteoblasts. …"
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233
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
منشور في 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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234
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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235
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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236
Performance and analysis of kappa-carrageenan hydrogel for PFOA-contaminated soil remediation wastewater treatment
منشور في 2024"…Due to pore size shrinkage, the AC-kC and V-kC hydrogels achieved the highest PFOA rejection at pH 4, whereas the water flux decreased. Increasing the PFOA concentration reduced water flux and increased PFOA rejection. …"
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237
Isolation and study of Lipase activity of an olive oil degrading Thermoactionomyces SP. (c2002)
منشور في 2002"…It was only slightly inhibited by PMSF (phenylmethylsulfonyl fluoride), while its activity increased in the presence of Ca ++ ions. The Km value for HRKL-1 (0.021 mM) indicated high affiniity of the enzyme to its substrate. …"
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masterThesis -
238
Piezoelectric properties of zinc oxide/iron oxide filled polyvinylidene fluoride nanocomposite fibers
منشور في 2022"…The nanocomposite fiber based flexible PENG shows piezoelectric output voltage of 5.9 V when 3 wt% of ZnO/FeO hybrid nanomaterial is introduced, which is 29.5 times higher than the neat PVDF. No apparent decline in output voltage is observed for almost 2000 s attributed to the outstanding durability. …"
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239
Evaluation of the durability and shielding properties of high-strength concrete incorporating locally available materials and carbon additives
منشور في 2026"…The proposed mixes’ performance measurements include compressive strength, flexural strength, modulus of elasticity, long-term effects (like creep and shrinkage), and electromagnetic shielding. …"
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240
The Development of Metal-Free Porous Organic Polymers for Sustainable Carbon Dioxide Photoreduction
منشور في 2024"…A viable tactic to effectively address the climate crisis is the production of renewable fuels via photocatalytic reactions using solar energy and available resources like carbon dioxide (CO₂) and water. Organic polymer material-based photocatalytic materials are thought to be one way to convert solar energy into valuable chemicals and other solar fuels. …"
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article