A quality of experience-aware association algorithm for 5G heterogeneous networks حسب Trakas, Panagiotis

"…Under these circumstances, the MNOs need to guarantee the users' Quality of Experience (QoE) requirements, while ensuring the sustainability of a 5G investment. To this end, we consider a 5G Heterogeneous Network (HetNet) deployment where MNOs use a QoE-based charging scheme. …"
احصل على النص الكامل
احصل على النص الكامل

Experimental study of exhaust emissions and performance of a dual fuel IDI diesel engine حسب Badr, O.

"…Dual fuel engines of the compression ignition type provide an alternative approach for I.C. engines to improve economy, reduce exhaust emissions and achieve a greater power. …"
احصل على النص الكامل
احصل على النص الكامل

Trade Liberalization and Economic Diversification: A Dynamic CGE Model for The Economy of Qatar حسب Vellinga, Nico

"…This paper develops a dynamic computable general equilibrium (CGE) model for Qatar with the view of getting some insights into the working of this a small open oil dependent economy. …"
احصل على النص الكامل

Humidification - Dehumidification Desalination Process Using Waste Heat from A Gas Turbine By حسب El Dessouky, H. T. A.

"…This paper presents a hutnidification-dehumidification desalination process using waste heat from a gas turbine power plant. …"
احصل على النص الكامل

A case study to identify the hindrances to widespread adoption of electric vehicles in qatar حسب Khandakar, A.

"…The adoption of electric vehicles (EVs) have proven to be a crucial factor to decreasing the emission of greenhouse gases (GHG) into the atmosphere. …"
احصل على النص الكامل
احصل على النص الكامل

Influence of natural gas composition on adsorption in calcite Nanopores: A DFT study حسب Elbashier E.

"…Additionally, in all cases, CO2 has a greater affinity to the surface than CH4; thus, it is more affected by the surface curvature and energy. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Fruit and vegetable consumption and cardiovascular diseases among jordanians: A case-control study حسب Tayyem, F. Reema

"…Results: The findings of the present study revealed that a total consumption of 3 servings of vegetable per day decreased significantly the risk of CVD to about 54% (OR = 0.46, 95% CI: 0.22-0.97, p = 0.033). …"
احصل على النص الكامل
احصل على النص الكامل

Evaluating the Short-Term Sustainability of Shared E-Scooters: A Usage-Centered Approach حسب Mandouri, Ja'far Mohammad Hasan

"…When usage grows, the environmental effect per passenger kilometer traveled can be greatly decreased, whereas social and economic impacts are also enhanced. …"
احصل على النص الكامل

HYPERTENSION MANAGEMENT AND PRESCRIBING PRACTICES IN PRIMARY HEALTHCARE SETTINGS IN QATAR: A MULTI-METHODS حسب ABDELKADER, NADA NABIL

"…Methods: The first phase is a retrospective chart review. The second phase is a mixed-method explanatory sequential design study. …"
احصل على النص الكامل

Urology Residents' Perspectives on the In-House On-Call Systems: A Study in an Accredited Academic Center حسب Khalil, Ibrahim A. and Ibrahim, Tarek and Aldeeb, Maya and Mohamed, Ahmed and Ben Salah, Rym and Aboumarzouk, Omar M. and Al-Naimi, Abdulla

"…However, the total number of duty hours violations decreased in the 12-hour on-call system. Conclusion: The 12-hour system is a better alternative to the 24-hour system in terms of the resident's quality of life, education, surgical case volume, and compliance with duty hour rules.…"
احصل على النص الكامل
احصل على النص الكامل

A QoE-Aware Joint Resource Allocation and Dynamic Pricing Algorithm for Heterogeneous Networks حسب Trakas, Panagiotis

"…To this end, we consider a HetNet deployment where MNOs offer a multitude of services with diverse pricing. …"
احصل على النص الكامل
احصل على النص الكامل

The impact of COVID-19 pandemic lockdown on smoking habits and lifestyle: A cross-sectional study حسب Khamees, Almu'atasim

"…While those who had a decrease in their smoking level experienced a somehow healthier lifestyle regarding nutrition and other aspects.…"
احصل على النص الكامل
احصل على النص الكامل

Effects of covid-19 lockdown on physical activity, sedentary behavior, and satisfaction with life in Qatar: A preliminary study حسب Hermassi, Souhail

"…Life satisfaction decreased, with the score for “I am satisfied with my life” (ηp2 = 0.76, p < 0.001) decreasing from 28.1 ± 4.81 to 14.2 ± 6.41 arbitrary units (AU). …"
احصل على النص الكامل
احصل على النص الكامل

Colloid retention and mobilization mechanisms under different physicochemical conditions in porous media: A micromodel study حسب Nishad, Safna

"…The objective of this work was to investigate the impact of hydrophobicity, solution ionic strength, and pH on colloid retention mechanisms in single-phase and two-phase flow in porous media systems. A series of experiments were conducted using a geometrically representative micromodel. …"
احصل على النص الكامل
احصل على النص الكامل

Preparation and characterization of wollastonite/titanium oxide nanofiber bioceramic composite as a future implant material حسب Aly, Ibrahim H.M.

"…While porosity and water adsorption capacity decreased with increasing the metal oxide nanofibers with a considerable impact for the sintering temperature in both properties. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

A global multiregional life cycle sustainability assessment of national energy production scenarios until 2050 حسب Kucukvar M.

"…The results showed that in comparison of BAU with RED scenario, GHG emissions associated would be 84% less in RED, wages will be 23% less and taxes would decrease by 22.4% under RED plan by 2050. In addition, energy sources responsible for the highest GHG emissions per kilowatt-hour of electricity produced are found as biomass, coal, waste and oil. …"
احصل على النص الكامل
احصل على النص الكامل

The Economic Impact of Optimizing a COVID-19 Management Protocol in Pre-Existing Cardiovascular Disease Patients حسب Dina, Abushanab

"…This study answers the question of whether the health care costs of managing COVID-19 in preexisting cardiovascular diseases (CVD) patients increased or decreased as a consequence of evidence-based efforts to optimize the initial COVID-19 management protocol in a CVD group of patients. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Turning point in COVID-19 severity and fatality during the pandemic: a national cohort study in Qatar حسب Chemaitelly, Hiam

"…The post-first omicron phase saw a drastic drop to 0.10 (95% CI 0.08 to 0.14) per 1000 person years, a 95.4% reduction. …"
احصل على النص الكامل
احصل على النص الكامل

Regional Difference in the Association between the Trajectory of Selenium Intake and Hypertension: A 20-Year Cohort Study. حسب Xie, Changxiao

"…The latent class modeling method was used to identify trajectory groups of selenium intake. A total of 4039 respondents developed hypertension. …"
احصل على النص الكامل
احصل على النص الكامل

Environment Degradation and Economic Growth in the Qatar Economy: Evidence from a Markov Switching Equilibrium Correction Model حسب Charfeddine, Lanouar

"…After reaching a critical level of income, the spending on environment protection is increased, and hence environment degradation tend to decrease. …"
احصل على النص الكامل
احصل على النص الكامل