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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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Effect of surfactants on the convective heat transfer and pressure drop characteristics of ZnO/DIW nanofluids: An experimental study
منشور في 2023"…Convective heat transfer (HTC) and flow characteristics (pressure drop (ΔP) and friction factor (f)) of aqueous ZnO NFs' within a circular mini tube (Di = 1.0 mm, L = 330 mm) were analyzed. …"
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Effect of surfactants on the convective heat transfer and pressure drop characteristics of ZnO/DIW nanofluids: An experimental study
منشور في 2023"…Convective heat transfer (HTC) and flow characteristics (pressure drop (ΔP) and friction factor (f)) of aqueous ZnO NFs' within a circular mini tube (D i = 1.0 mm, L = 330 mm) were analyzed. …"
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BRET-based biosensors for SARS-CoV-2 oligonucleotide detection
منشور في 2024"…Specifically, we designed BioODs against the SARS-CoV-2 parental (Wuhan strain) and B.1.617.2 Delta variant through the conjugation of specific, fluorescently modified molecular beacons (sensor module) through a complementary oligonucleotide handle DNA functionalized with the NanoLuc (NLuc) luciferase protein such that the dissolution of the molecular beacon loop upon the binding of the viral oligonucleotide will result in a decrease in BRET efficiency and, thus, a change in the bioluminescence spectra. …"
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Stability enhancement of Al<sub>2</sub>O<sub>3</sub>, ZnO, and TiO<sub>2</sub> binary nanofluids for heat transfer applications
منشور في 2024"…It was concluded from the results that zeta potential increases in cases of (TiO<sub>2</sub> + ZnO) and (Al<sub>2</sub>O<sub>3</sub> + ZnO) from −44.2 to −47.8 mV and −42.4 to −44.1 mV with the addition of surfactant, respectively. …"
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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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Effect of Hypoxia on Maximal Fat Oxidation Rate During Incremental Cycling : Relationship to the Gas Exchange Threshold
منشور في 2024"…The aim of this study was to evaluate MFO in normoxia (NORM) and hypoxia (HYPO) during exercise at intensities matched relative to the respiratory compensation point (RCP).</p><h3>Methods</h3><p dir="ltr">Seventeen recreationally active adults (5 females/12 males; age: 36.2 ± 7.4 year; body mass: 76.6 ± 13.1 kg) performed a ramp and a step incremental test, in NORM (The fraction of inspired oxygen; FiO<sub>2</sub> ≈ 21%) and HYPO (FiO<sub>2</sub> ≈ 13.5%), on separate days. …"
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Sleeve Gastrectomy in Patients with Type 2 Diabetes: Anthropometric and Cardiometabolic Improvements at 1, 3, 5, 7, and 9 years—Are the Initial Benefits Sustained?
منشور في 2025"…Fasting blood glucose decreased significantly across the five time points, from 9.27 ± 4.11preop to 7.06 ± 2.70 <sub>year9 </sub>mmol/L. …"
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A BRET-based Mpro biosensor containing a nanobody and tandem cleavage sites shows an increased cleavage rate
منشور في 2025"…We envisage that the NB2E3 nanobody-2× Mpro biosensor engineered here will be useful in drug discovery and functional characterization of Mpro mutants in newly emerging SARS-CoV-2 variants as well as in detecting SARS-CoV-2 infection in a point-of-care testing (POCT) format.…"
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Nonlinear Control of Brushless Dual-Fed Induction Generator With a Flywheel Energy Storage System for Improved System Performance
منشور في 2025"…After optimization, the SMC settling time was significantly reduced from 0.7 seconds to 19.97 milliseconds, achieving a 96.9% improvement in response speed, while its steady-state error decreased from 0.48 to 0.06, marking an 87.5% reduction in tracking error. …"
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Aortic valve function post-replacement of severe aortic stenosis by transcatheter procedure versus surgery: a systematic review and metanalysis
منشور في 2021"…TAVR was associated with 37% (95% CI [0.51–0.78) mean RR reduction of post-procedural PPM, a decrease that was not affected by the surgical risk at inclusion, neither by the transcatheter heart valve system. …"
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High-Performance Acetic Acid Sensing Using Cerium-MoS₂ Composite for Beverages and Food Processing Industry
منشور في 2025"…Furthermore, the repeatability of the Ce<sub>0.6</sub> -MoS<sub>2</sub> sensor was assessed over 30 days, and a marginal decrease of 5% in response was observed from day 1 to day 30.…"
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High-sensitive detection and quantitation of thyroid-stimulating hormone (TSH) from capillary/fingerstick and venepuncture whole-blood using fluorescence-based rapid lateral flow i...
منشور في 2023"…These key performance indicators were slightly decreased when fingerstick whole-blood samples were used: sensitivity [85.7 %(63.7–97)], specificity [90.0 %,(81.5–96)], good agreement (Cohen's Kappa = 0.7) and very strong correlation (r = 0.9, p < 0.0001) with cobas® e 601. …"
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High-sensitive detection and quantitation of thyroid-stimulating hormone (TSH) from capillary/fingerstick and venepuncture whole-blood using fluorescence-based rapid lateral flow i...
منشور في 2023"…These key performance indicators were slightly decreased when fingerstick whole-blood samples were used: sensitivity [85.7 %(63.7–97)], specificity [90.0 %,(81.5–96)], good agreement (Cohen's Kappa = 0.7) and very strong correlation (r = 0.9, p < 0.0001) with cobas® e 601. …"
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BRET-Based Biosensors for Nucleic Acid Detection and Impact of Molecular Crowding Monitoring
منشور في 2024"…<p dir="ltr">The advancement of biosensor technology and the demand for point-of-care diagnostics have driven the development of diverse methods for detecting viral infections and understanding complex biochemical processes. …"
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Characterizing the dynamics of climate and native desert plants in Qatar
منشور في 2024"…However, the probability of rainfall events over 80 mm was less than 5%, while low rainfall seasons (1–17 mm) were more likely (90–99% chance). …"
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Investigation of the structural, optical and gas sensing properties of PANI coated Cu–ZnS microsphere composite
منشور في 2020"…In particular, PANI/Cu–ZnS sensor shows good response (31 s) and recovery time (23 s) upon exposure to CO<sub>2</sub> gas. …"
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Generalized and pregnancy-related anxiety prevalence and predictors among pregnant women attending primary health care in Qatar, 2018–2019
منشور في 2020"…</p><h3>Limitations</h3><p dir="ltr">There is no recognized optimal cut-off point to distinguish ‘high risk’ in pregnancy-related anxiety scales.…"