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461
Energy Efficiency of UAV-Based Communication Systems Powered via Energy Harvesting Through Trajectory Optimization
منشور في 2023"…Unmanned aerial vehicles (UAV), also known as drones, is an aircraft without a human pilot onboard and controlled simultaneously by computers remotely. …"
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462
Determinants of Non-Performing Loans in the State of Qatar With Special References to Small and Medium Enterprises
منشور في 2024"…We selected SMEs from Qatar Development Bank (QDB) portfolio for the borrower-specific factors using a questionnaire to explore the SMEs' causes of NPLs. …"
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463
Clinical and biochemical determinants of length of stay, readmission and recurrence in patients admitted with diabetic ketoacidosis
منشور في 2023"…Patients with a 6-month DKA recurrence, female gender and T1DM had higher odds of 12-month recurrence, whereas a consult with a diabetes educator at the index admission was associated with decreased odds of recurrence.…"
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464
Effect of Hypoxia on Muscle Activation During Incremental Exercise at Equivalent Relative Intensity
منشور في 2024"…In the ramp test, there was a significant decrease in muscle activation for rmsRF% (<i>P</i>= 0.049; d = 0.61) and rmsVM% (<i>P</i> = 0.01; d = 0.84) in peak power output (PPO). …"
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465
Mixed precision iterative refinement with adaptive precision sparse approximate inverse preconditioning
منشور في 2025"…In this work, we develop an adaptive precision sparse approximate inverse preconditioner and demonstrate its use within a five-precision GMRES-based iterative refinement method. …"
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466
Electric vehicles charging management using deep reinforcement learning considering vehicle-to-grid operation and battery degradation
منشور في 2023"…In this paper, a deep RL-based EVs charging management solution is presented, while considering fast charging, conventional charging and V2G operation, in order to satisfy the requirements of the user and the utility. …"
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467
Constitutive Modeling of the Tensile Behavior of Recycled Polypropylene-Based Composites
منشور في 2019"…Because the repeated reprocessing leads to thermo-mechanical degradation by chain scission mechanisms, the tensile behavior of the two materials exhibits a continuous decrease of elastic modulus and failure strain with the increasing amount of reprocessing. …"
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468
Evaluation of the cementite morphology influence on the hydrogen induced crack nucleation and propagation path in carbon steels
منشور في 2022"…A drastic load decrease in the load-displacement (L-D) curve happened under −1550 mV charging for both microstructures accompanied by a straight crack growth path in spheroidite microstruc-ture, independent of grain boundaries or ferrite-cementite interfaces while a competition between the shear crack growth mechanism and the interfacial cracking determines the crack growth path in the lamellar microstructure.…"
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469
Investigating the Impact of Salinity Variations on Aerobic Granules and Activated Sludge Flocs: Emphasis on Performance Monitoring and Identification of Influential Salinity Compon...
منشور في 2022"…Consequent to the changes in the extracellular polymeric substances (EPS), there was an immediate decrease in sludge hydrophobicity resulting in a deterioration of settling, indicated by an increase in the sludge volume index (SVI), and loss of biomass for all the reactors. …"
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470
Forecast of the outbreak of COVID-19 using artificial neural network: Case study Qatar, Spain, and Italy
منشور في 2021"…The simple and well-structured ANN model can be adapted to different propagation dynamics and could be useful for health managers and decision-makers to better control and prevent the occurrence of a pandemic.</p><h2>Other Information</h2><p dir="ltr">Published in: Results in Physics<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.rinp.2021.104484" target="_blank">https://dx.doi.org/10.1016/j.rinp.2021.104484</a></p>…"
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471
Investigation of the Sustainable Production and Utilization of Biochar and Activated Carbon From Waste
منشور في 2023"…After activation, the SCG biomass was used to produce biochar by a slow pyrolysis process at three temperatures (300, 500, and 600 °C) for 1-hour residence time and at a heating rate of 5 °C/min. …"
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472
Design and analysis of PV fed high-voltage gain DC-DC converter using PI and NN controllers
منشور في 2022"…When the converter switch comes under active state two capacitors are discharged in series, similarly when the converter switch under inactive state those two capacitors are charged in parallel through the coupled inductor (CI) energy so, to get a high voltage at the converter output side. To reuse the leakage-inductor (LI) energy of the CI with the help of a passive clamp circuit for reducing the voltage stress across the switch, similarly switch has less resistance so conduction losses also decreased. …"
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473
Basin of Attraction through Invariant Curves and Dominant Functions
منشور في 2015"…We study a second-order difference equation of the form z<inf>n+1</inf> = z<inf>n</inf> F (z<inf>n-1</inf>) + h, where both F (z) and z F (z) are decreasing. …"
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474
Fasting-Mimicking Diet Is Safe and Reshapes Metabolism and Antitumor Immunity in Patients with Cancer
منشور في 2022"…In 101 patients, the FMD was safe, feasible, and resulted in a consistent decrease of blood glucose and growth factor concentration, thus recapitulating metabolic changes that mediate fasting/FMD anticancer effects in preclinical experiments. …"
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475
Bone Benefits of Fish Oil Supplementation Depend on its EPA and DHA Content
منشور في 2019"…Further, CFO supplementation was associated with an increase in the production of IL-10, IL-12, and IFN-γ and a decrease in the production of TNF-α and IL-6, and the activation of NF-κB, p38 MAPK, and JNK signaling pathways. …"
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476
Stemming cardiovascular diseases in Qatar
منشور في 2015"…<p>A new study by researchers at the Weill Cornell Medical College in New York and in Doha, Qatar, suggests that public health strategies could have a major impact on the incidence of cardiovascular diseases in the Qatari population.…"
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477
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"…Methods102 fingerstick, venepuncture whole-blood, and serum samples (with normal and abnormal TSH values) were analyzed by Finecare™ Rapid Quantitative LFIA test and Roche cobas® e 601 as a reference test. ResultsUsing serum, when compared to cobas® e 601 reference method, Finecare™ showed high sensitivity [90.5 % (69.6–98.8)] and specificity [96.3 % (89.6–99.2)] for diagnosis of thyroid abnormalities (<0.35 or >4.5 mIU/L). …"
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478
Impact of trace noble metals on the catalytic performance of LaNiMgO towards methane dry reforming
منشور في 2024"…In addition, the presence of noble metals at the Ni surface afforded a high density of adsorbed oxygen species, which enhanced coke gasification and consequently decreased the extent of deactivation of the catalysts by coke formation. …"
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479
Trends of the Dementia Burden in South Asia: An Analysis of 2021 Global Burden of Disease Study
منشور في 2025"…</p><h3>Results</h3><p dir="ltr">A slight decrease in incidence rates from 80.57 to 79 per 100,000 was observed, alongside a significant increase in mortality rates from 14.11 to 17.2 per 100,000. …"
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480
Effects of financial turmoil on financial integration and risk premia in emerging markets
منشور في 2016"…Accordingly, we estimate a variant of the International Asset Pricing Model developed by Carrieri et al. (2007), allowing for time-varying stock market integration, in which we include the foreign currency risk. …"
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