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481
Performance characteristics of an ammonia-water absorption heat pump system
منشور في 2013"…Mounting Δξ at constant f reduces the pressure drop gradually and subsequently starts to increase as Δξ escalates. The ammonia concentration ξ has insignificant effect on the evaporation heat transfer coefficient but has a little effect on the condensation and the absorber heat transfer coefficients. …"
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482
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483
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484
Studying coral reef patterns in UAE waters using panel data analysis and multinomial logit and probit models
منشور في 2020"…Furthermore, results demonstrated that the probability of severe damage increases with decreasing water oxygenation and with increasing temperature, light, salinity, acidity and nutrient levels. …"
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485
Changes in Blood microRNA Expression and Early Metabolic Responsiveness 21 Days Following Bariatric Surgery
منشور في 2019"…</p><p dir="ltr"><br></p><h3>Methods: </h3><p dir="ltr">Twenty-nine type 2 patients with severe obesity (mean BMI 46.2 kg/m<sup>2</sup>) and diabetes underwent Roux-en-Y gastric bypass (RYGB) surgery. …"
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486
The impact of metformin therapy for gestational diabetes on fetal growth in women with risk factors for fetal growth restriction- a registry-based study from Qatar
منشور في 2023"…</p> <h3>Conclusion</h3> <p>The results of this study suggest that in women with additional risk factors for FGR, the concurrent use of metformin significantly decreases the birthweight and increases the risk for LBW, SFD, PTB and admission to NICU. …"
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487
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488
Receivers location privacy in avionic crowdsourced networks: Issues and countermeasures
منشور في 2021"…As a worst-case scenario, we demonstrate that, when a feasible number of receivers are deployed in the same area of a protected one, due to the nature of involved ADS-B data, standard time-based localization schemes can identify the location of any protected receiver. …"
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489
Energy conversion of heat from abandoned oil wells to mechanical refrigeration - Transient analysis and optimization
منشور في 2021"…The effects of the temperature variation of the geofluid over operation time, the working fluids, the high pressure and the temperatures of the heat source and sink are investigated. …"
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490
Evaluation of The Factors Affecting Microplastics and Nanoparticles in Plastic Water Supply Pipes
منشور في 2020احصل على النص الكامل
doctoralThesis -
491
A nonlinear PID servo controller for computer hard disk drives
منشور في 2020"…A nonlinear PID scheme is proposed as an efficient hard disk drive servo controller, reducing the settling time and lowering the required control effort. The controller is capable of increasing (decreasing) damping effect when the system output is moving away from (towards) the desired track. …"
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article -
492
Effect of Intravenous Mannitol on Intraocular Pressure Changes in Vitrectomized and Non-Vitrectomized Eyes: A Systematic Review and Meta-Analysis
منشور في 2024"…In vitrectomized eyes, notable decreases were observed: at 30 min, the Ratio of Means (ROM) was 0.81 (95% CI: 0.53; 1.24), indicating a 19% reduction; at 60 min, the ROM of 0.833 (95% CI: 0.77; 0.89) showed a 16.7% reduction; at 90 min, the ROM of 0.757 (95% CI: 0.755; 0.758) corresponded to a 24.3% reduction; at 2 h, the ROM of 0.726 (95% CI: 0.642; 0.820) reflected a 27.4% reduction; at 3 h, the ROM of 0.692 (95% CI: 0.600; 0.797) resulted in a 30.8% reduction; and at 4 h, the ROM of 0.700 (95% CI: 0.363; 1.350) indicated a 30% reduction. …"
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493
A photoactivatable chemotherapeutic Ru(II) complex bearing bathocuproine ligand efficiently induces cell death in human malignant melanoma cells through a multi-mechanistic pathway
منشور في 2021"…The uptake of [Ru(bpy)2BC]Cl2, assessed by ICP/MS, started immediately post-incubation and plateaued after 24 h. …"
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article -
494
The Trace Element Composition of Size Fractionated Suspended Particulate Matter Samples from the Qatari EEZ of the Arabian Gulf: The Role of Atmospheric Dust
منشور في 2019"…To evaluate the fate of this carbonate fraction when dust particles enter seawater is uncertain, we leached a sub-set of dust samples using an acetic acid-hydroxylamine hydrochloride (HAc-HyHCl) procedure that should solubilize CaCO3 minerals and associated elements. …"
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495
An Investigation into the factors influencing Arabic speaking students’ proficiency in the Arabic language in Dubai British School
منشور في 2022"…The instruments used in the quantitative analysis were a set of questionnaires administered to the students, teachers, leaders and parents. …"
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496
The Impact of an Ethnomathematics Intervention on Sixth Graders’ Perceptions about the Nature of Mathematics
منشور في 2023"…In the past decades, more mathematics educators, researchers, and experts started to show interest in teaching ethnomathematics because of the dry, abstract, and boring mathematics instruction followed in most mathematics classrooms. …"
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masterThesis -
497
Relativistic quantum-speed limit for Gaussian systems and prospective experimental verification
منشور في 2025"…Relativistic kinematics slow evolution in an amplitude- and squeezing-dependent way, increase both bounds, and introduce an <i>ϵ</i><sup><em>2</em></sup><i> t</i><sup><em>2</em></sup> phase drift that weakens timing sensitivity while modestly increasing the squeeze factor. …"
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498
Green drilling fluid additives for a sustainable hole-cleaning performance: a comprehensive review
منشور في 2023"…High-energy demands have caused the oil and gas production rates to increase by orders of magnitude, which is accompanied by increased usage of different drilling fluids, including oil-based muds (OBM) and water-based muds (WBM). …"
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499
Kefir exhibits anti‑proliferative and pro‑apoptotic effects on colon adenocarcinoma cells with no significant effects on cell migration and invasion
منشور في 2014"…To assess the effect of kefir on cancer metastasis, wound‑healing and time‑lapse movies, in addition to collagen‑based invasion assay, were used. …"
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article -
500
Adopting Geophysical Testing Techniques in Geotechnical Investigation and Shallow Foundation Design
منشور في 2018احصل على النص الكامل
doctoralThesis