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Now showing items 17351-17360 of 17878
Thermoeconomic and optimization analyses of direct oxy-combustion supercritical carbon dioxide power cycles with dry and wet cooling
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Elsevier
, 2021 , Article)
Oxy-combustion supercritical CO2 power cycles have the advantages of high-energy efficiency and near-zero pollutant emissions. Thus, these cycles are considered as an efficient way to reduce CO2 emissions while maintaining ...
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
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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 ...
The date palm microbiome: A review
(
Elsevier
, 2023 , Article)
Date palm (Phoenix dactylifera) is a significant crop grown in warm, tropical, and arid regions. The microorganisms associated with plants can have positive and negative effects on the growth and yield of crops. Thus, there ...
Rupture of an industrial gfrp composite mitered elbow pipe
(
MDPI AG
, 2021 , Article)
This paper examines the immature rupture of glass fiber reinforced plastic composite (GFRP) mitered elbow pipes. The GFRP composite mitered elbow pipe’s lifespan was twenty-five years; however, the pipes in question ...