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السجلات المعروضة 11881 -- 11890 من 12285
Energy and exergy analyses of novel supercritical CO2 Brayton cycles driven by direct oxy-fuel combustor
(
Elsevier
, 2021 , Article)
This study addresses major research gaps related to supercritical carbon dioxide (sCO2) power cycles including the shortcomings due to adding extra components, the high operating temperatures and the lack of studies on ...
Turning point in COVID-19 severity and fatality during the pandemic: a national cohort study in Qatar
(
BMJ Publishing Group
, 2023 , Article)
Objective To assess the evolution of COVID-19 severity and fatality in a unique setting that consistently applied, throughout the pandemic, rigorous and standardised criteria for defining severe COVID-19 outcomes.
Methods ...
Deep Churn Prediction Method for Telecommunication Industry
(
Multidisciplinary Digital Publishing Institute (MDPI)
, 2023 , Article)
Being able to predict the churn rate is the key to success for the telecommunication industry. It is also important for the telecommunication industry to obtain a high profit. Thus, the challenge is to predict the churn ...
Crashworthiness optimization of composite hexagonal ring system using random forest classification and artificial neural network
(
Elsevier
, 2024 , Article)
This research aims to enhance the safety level and crash resiliency of targeted woven roving glass/epoxy composite material for various industry 4.0 applications. Advanced machine learning algorithms are used in this study ...
Percutaneous nephrolithotomy in supine position with less than 24-hour hospital stay; a single-center experience
(
Taylor & Francis
, 2023 , Article)
Objectives: To report our initial experience of day care percutaneous nephrolithotomy (PCNL) with early hospital discharge within less than 24 hours of the procedure. Patients and Methods: The files of patients treated ...
Robust stabilization of LTI negative imaginary systems using the nearest negative imaginary controller
(
John Wiley and Sons Inc
, 2023 , Article)
This paper considers the problem of robust stabilization of linear time-invariant systems with respect to unmodelled dynamics and structure uncertainties. To that end, a methodology to find the nearest negative imaginary ...
التحديات التي تواجه الشباب في المجتمع القطري: دراسة استكشافية
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كلية العلوم الإدارية - كلية العلوم الإنسانية بجامعة العلوم والتكنولوجيا بالجمهورية اليمنية
, 2023 , Article)
تبحث الدراسة في التحديات التي يواجهها الشباب في قطر، في جوانبها الأخلاقية والنفسية والاجتماعية والسلوكية. استخدم منهج مختلط، لجمع بيانات كمية ونوعية وثانوية، وأجري التحليل الموضوعاتي ببرنامج MAXQDA، وحللت البيانات الكمية ...
Erratum to: Carbon black dispersions in surfactant-based microemulsion — Corrigendum (Journal of Materials Research, (2018), 33, 9, (1301-1307), 10.1557/jmr.2017.451)
(
Springer Nature
, 2018 , Other)
In Youssry et al.1, the incorrect image was provided for Fig. 5. The correct figure is below.
جريمة الإباحية الجنسية للأطفال عبر الفضاء الإلكتروني (دراسة تحليلية مقارنة)
(2024 , Master Thesis)
تتناول هذه الدراسة التحليلية المقارنة أحد أدق الجرائم الإلكترونية المستحدثة وأخطرها، وتكتسب من الجسامة الشيء الكبير، لأنها تمثل انتهاكا حقيقيا للمقومات الأخلاقية والقيمية للمجتمع وللطفل الضحية على حد السواء ، مقارنة ببقية ...
Novel approach in treating industrial wastewater using metal-organic framework nanoparticles impregnated with biosurfactants.
(2024 , Dissertation)
Arabian Gulf countries including Qatar are amongst the main oil and gas (O&G) producers globally. A huge amount of water is used during the upstream and downstream processes of oil and gas refiners. As a result, a large ...