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261
Privacy-Preserving Fog Aggregation of Smart Grid Data Using Dynamic Differentially-Private Data Perturbation
منشور في 2022"…We describe our differentially-private model with flexible constraints and a dynamic window algorithm to maintain the privacy-budget loss in infinitely generated time-series data. Our experimental results show a possible decrease in data perturbation error by 51.7% and 61.2% for smart meters and fog-computing data aggregators perturbed data, respectively, compared to the commonly used Gaussian mechanism.…"
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262
Grid integration of renewable energy in Qatar: Potentials and limitations
منشور في 2021"…A one-year dynamic analysis based on an hourly time step is conducted using the EnergyPLAN tool. …"
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263
Insights on the effect of water content in carburizing gas mixtures on the metal dusting corrosion of iron
منشور في 2022"…The reactions happening in the sample at different water concentrations and at different time frames are explored. We demonstrate that the presence of water on a clean Fe surface promotes different catalytic reactions at the beginning of the simulations that boost the C, H, O diffusion into the sample. …"
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264
Inland Treatment of the Brine Generated from Reverse Osmosis Advanced Membrane Wastewater Treatment Plant Using Epuvalisation System
منشور في 2013"…The increasing of channel number or closed loop time is estimated for enhancing the treatment process and increasing the nutrient uptake. …"
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265
EEG-Based Semantic Vigilance Level Classification Using Directed Connectivity Patterns and Graph Theory Analysis
منشور في 2020"…Behaviorally, all subjects demonstrated vigilance decrement as reflected by the significant increase in response time and reduced accuracy. The strength and directionality of information flow in the connectivity network by RWTE/PDC and the GTA measures significantly decrease with vigilance decrement, p<0.05. …"
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266
Effect of Girder Damage on the Structural Behavior of Slab-on-Girder Bridges
منشور في 2011احصل على النص الكامل
doctoralThesis -
267
Factors affecting acoustically triggered release of drugs from polymeric micelles
منشور في 2000"…A custom ultrasonic exposure chamber with real-time fluorescence detection was used to measure acoustically-triggered drug release from Pluronic P-105 micelles under continuous wave (CW) or pulsed ultrasound in the frequency range of 20 to 90 kHz. …"
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268
Unraveling the future productivity burden of cardiovascular disease in Qatar: Investigating the modifiable risk factors control in type 2 diabetes
منشور في 2025"…The financial value of PALYs was determined based on the gross domestic product (GDP) per full-time worker (i.e. US$80,573). The base-case model estimated the productivity burden of CVD, and interventional scenarios were simulated to assess potential gains resulting from improved control of modifiable risk factors, including reduced incidence of T2D, lower systolic blood pressure (SBP), decreased number of smokers, and reduced total cholesterol. …"
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article -
269
Assessment of resin systems as solution for well integrity challenge in carbonate reservoirs
منشور في 2023"…Additionally, the transit time showed a 26–42% range decrease in the travel period, indicating that the cement was stronger under increased pressure and temperature. …"
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270
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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271
Brain microstructural changes support cognitive deficits in HIV uninfected children born to HIV infected mothers
منشور في 2020"…Decreased FA along with both increased and decreased MD in different brain regions was present in HUC compared to CHNM. …"
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272
A Sociodemographic Analysis of the Impact of COVID-19-Related Schools’ Closure on the Diet and Physical Activity of Children and Adolescents in Qatar
منشور في 2023"…We found a significant decrease in the intake of vegetables, increases in the intake of soft drinks, fried food, fast food, and sweets, and a reduction in physical activity during schools’ closure compared to before. …"
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273
Thermo-Economic Evaluation of Maisotsenko-Desiccant Cooling Systems for Gas Turbine Power Plants
منشور في 2018احصل على النص الكامل
doctoralThesis -
274
Investigation of positive education implementation and its impact on students' wellbeing and academic self-efficacy in K-12 private schools in Dubai
منشور في 2022"…The findings revealed the following: 1) in recent years there has been increasing positive education implementation grounding in the recent international, national, local, and educational authority policies and initiatives. 2) absence of standardised local and school policy related to positive education implementation has led to the need for adaptability of positive education implementation across school. 3) there has been strong engagement of the internal school community (teachers, school leaders and students) with external school community (parents). 4) significant changes in the overall level DSWC indicators associated with social emotional wellbeing, life satisfaction, perseverance, feeling safe, and belonging to school. 5) insignificant changes associated with DSWC indicators associated with emotional regulation, happiness, optimism, academic self-concept, cognitive engagement, engagement (flow), peer belonging and school climate. 6) PASS assessment factors show increase in wellbeing, motivation and self-efficacy for regulation and decrease in academic self-efficacy. 7) significant increase in emotional, social wellbeing and academic self-efficacy among students due to positive education implementation as perceived by teachers, parents, and students.…"
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275
Acute intense fatigue does not modify the effect of EVA and TPU custom foot orthoses on running mechanics, running economy and perceived comfort
منشور في 2022"…Two-way repeated measures ANOVA [condition (CON, EVA, and TPU) × fatigue (fresh and fatigued)] were conducted. Flight time shortened (P = 0.026), peak braking (P = 0.016) and push-off (P = 0.032) forces decreased and vertical stiffness increased (P = 0.014) from before to after the repeated-sprint exercise, independent of footwear condition. …"
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276
Worldwide trends in blood pressure from 1975 to 2015: a pooled analysis of 1479 population-based measurement studies with 19·1 million participants
منشور في 2017"…Global age-standardised prevalence of raised blood pressure was 24·1% (21·4–27·1) in men and 20·1% (17·8–22·5) in women in 2015. Mean systolic and mean diastolic blood pressure decreased substantially from 1975 to 2015 in high-income western and Asia Pacific countries, moving these countries from having some of the highest worldwide blood pressure in 1975 to the lowest in 2015. …"
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277
Follow up and comparative assessment of IgG, IgA, and neutralizing antibody responses to SARS-CoV-2 between mRNA-vaccinated naïve and unvaccinated naturally infected individuals ov...
منشور في 2023"…To explore the relationship between the antibody responses and time, Spearman's correlation coefficient was computed. …"
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278
Simulation of the size-composition distribution of atmospheric nanoparticles over Europe
منشور في 2018"…The ground level concentrations of particles with a diameter larger than 100 nm (N100) were reproduced with a daily normalized mean error of 40 % and a daily normalized mean bias of −20 %. …"
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279
Blockchain implementations. (c2019)
منشور في 2019"…The results also show that the use of smart contracts in the implementation of the blockchain technology in the insurance sector leads to increase in efficiency and decrease in the costs, fraud and processing time.…"
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masterThesis -
280
Two-Surgeon Technique for Hepatic Parenchymal Transection of the Noncirrhotic Liver Using Saline-Linked Cautery and Ultrasonic Dissection
منشور في 2005"…The UD+SLC group had a decreased duration of inflow occlusion (20 minutes versus 30 minutes, P = 0.01), blood loss (150 mL versus 250 mL, P = 0.034), and operative time (187 minutes versus 211 minutes, P = 0.027). …"
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article