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السجلات المعروضة 271 -- 280 من 1196
Concurrent frequency-voltage stabilization for hybrid microgrid with virtual inertia support
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John Wiley and Sons Inc
, 2023 , Article)
This paper presents a novel control scheme for combined frequency and voltage stabilization of an islanded multi-generator hybrid microgrid (IHμG). The control concept incorporates an improved virtual inertia support scheme ...
The impact of electric field on the demulsification efficiency in an electro-coalescence process
(
Elsevier
, 2023 , Article)
In this study, the influence of the electric field and its determining parameters such as voltage, inter-electrode distance and frequency on the demulsification efficiency of a water-in-oil emulsion was studied. The numerical ...
Biocrude oil production from a self-settling marine cyanobacterium, Chroococcidiopsis sp., using a biorefinery approach
(
Elsevier
, 2023 , Article)
Although the whole microalgal biomass is typically used as a feedstock for hydrothermal liquefaction (HTL), the conversion of a primary metabolite (i.e., carbohydrate) to biocrude is very low. In this study, a self-settling ...
Techno-economic assessment of forward osmosis as a pretreatment process for mitigation of scaling in multi-stage flash seawater desalination process
(
Elsevier
, 2023 , Article)
Thermal desalination processes suffer from the formation of scalants on the heat exchangers of the evaporator unit which negatively affect the process efficiency. This study evaluated the technical and economic feasibility ...
Utilization of EV Charging Station in Demand Side Management Using Deep Learning Method
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Institute of Electrical and Electronics Engineers Inc.
, 2023 , Article)
Conventional energy sources are a major source of pollution. Major efforts are being made by global organizations to reduce CO2 emissions. Research shows that by 2030, EVs can reduce CO2 emissions by 28%. However, two major ...
Thermal analysis of Si-IGBT based power electronic modules in 50kW traction inverter application
(
Elsevier
, 2023 , Article)
Estimation of accurate IGBT junction temperature is crucial for reliability assessment. The well-known RC lumped approach can help predict junction temperature. However, this method suffers from inaccuracy while characterizing ...
Student Attitudes and Interests in STEM in Qatar through the Lens of the Social Cognitive Theory
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MDPI
, 2023 , Article)
STEM (science, technology, engineering, and math) has taken center stage as a priority policy agenda for Qatar’s leadership. At present, STEM stands as a fundamental catalyst for Qatar’s sustainable economic, environmental, ...
Tacit Choice of Law Applicable to International Commercial Contracts: The Hague Principles and Arab Laws Compared
(
Brill
, 2023 , Article)
This article deals with the law tacitly chosen by the parties to govern their international commercial contracts. It shows the method by which The 2015 Hague Principles on Choice of Law in International Commercial Contracts ...
Exemption clauses: a comparative review of the UNIDROIT Principles and the Qatar Civil Code
(
Oxford University Press
, 2023 , Article)
This article deals with exemption clauses and specifically with respect to their definition, types, and validity. It tackles clauses that exempt the obligor from liability for his or his employees’ non-performance. The ...
The COVID-19 experience of orthodontists in Jordan
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Medknow Publications
, 2023 , Article)
OBJECTIVES: To understand the impact of the COVID-19 pandemic on orthodontic clinical services in Jordan. MATERIALS AND METHODS: Google Forms electronic questionnaires were distributed between March and June 2021 using the ...