Qatar University Institutional Repository: المرسلات الحديثة
السجلات المعروضة 1 -- 20 من 27656
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Developing a rubric for assessing students’ competencies in entrepreneurial-STEM learning context
( Routledge , 2024 , Article)The increasing emphasis on a competency-based learning approach in entrepreneurial-STEM (E-STEM) necessitates competency-based assessment tools to track students’ entrepreneurial development and enhance the quality of ... -
Electrical Machine Fundamentals with Numerical Simulation using MATLAB/SIMULINK
( wiley , 2021 , Book)A comprehensive text, combining all important concepts and topics of Electrical Machines and featuring exhaustive simulation models based on MATLAB/Simulink Electrical Machine Fundamentals with Numerical Simulation using ... -
A New Memristive Chaotic System with a Plane and Two Lines of Equilibria
( World Scientific , 2021 , Article)A new 4D memristive chaotic system with an infinite number of equilibria is proposed via exhaustive computer search. Interestingly, such a new memristive system has a plane of equilibria and two other lines of equilibria. ... -
Antimicrobial activity of amphiphilic nanomicelles loaded with curcumin against Pseudomonas aeruginosa alone and activated by blue laser light
( wiley , 2021 , Article)The aim of this work was to assess the antimicrobial efficacy on Pseudomonas aeruginosa of nanomicelles loaded with curcumin (CUR) alone and activated by blue laser light in an antimicrobial photodynamic therapy (APDT) ... -
Pulse-width modulation of power electronic DC-AC converter
( wiley , 2021 , Book chapter)The pulse-width modulation (PWM) technique is applied in the inverter (DC-AC converter) to output an AC waveform with variable voltage and variable frequency for use in mostly variable speed motor drives. This chapter ... -
Elastic wave phenomenon of nanobeams including thickness stretching effect
( Techno-Press , 2021 , Article)The present work deals with an investigation on longitudinal wave propagation in nanobeams made of graphene sheets, for the first time. The nanobeam is modelled via a higher-order shear deformation theory accounts for both ... -
Chemical, Electrochemical, and Surface Study on Microbial Attack of CoCrMo Dental Alloy by Streptococcus mutans
( Springer Science and Business Media Deutschland GmbH , 2021 , Article)Abstract: In this investigation, the objective of our research was to evaluate the influence of the corrosion behavior of CoCrMo dental alloy in the presence of the oral bacteria Streptococcus mutans (Streptococcus mutans) ... -
High Performance Control of AC Drives with MATLAB®/Simulink
( wiley , 2021 , Book)The Second Edition of High Performance Control of AC Drives with Matlab®/Simulink delivers an updated and thorough overview of topics central to the understanding of AC motor drive systems. The book includes new material ... -
Experimental, Density Functional Theory, and Dynamic Molecular Studies of Imidazopyridine Derivatives as Corrosion Inhibitors for Mild Steel in Hydrochloric Acid
( Pleiades journals , 2021 , Article)Two imidazopyridine derivatives 6-chloro-2-(4-chlorophenyl) imidazo [1,2-a]pyridine (IPCl1) and 6-chloro-2-(4-chlorophenyl)imidazo[1,2-a]pyridine-3-carbal-dehyde (IPCl2) were investigated as corrosion inhibitors of mild ... -
A multi-string fault-tolerant multilevel inverter configuration for off-grid photovoltaic applications
( wiley , 2021 , Article)With the intensified demand for enhanced harmonic profile of output voltage, better power quality, reduced dv/dt stress of devices and minimal filter requirement, multilevel inverters (MLIs) have emerged as a viable solution ... -
Trends and innovations in biosensors for COVID-19 detection in air
( Springer International Publishing , 2021 , Book chapter)Pandemic is not a word to use lightly or carelessly. It is a word that, if misused, can reason difficult fear, or unwarranted acceptance that the fight is over, foremost to needless suffering and fatality. Coronavirus ... -
Go/no-go decision model for owners using exhaustive CHAID and QUEST decision tree algorithms
( MDPI , 2021 , Article)Go/no-go execution decisions are one of the most important strategic decisions for owners during the early stages of construction projects. Restructuring the process of decision-making during these early stages may have ... -
Effects of elastic band plyometric training on physical performance of team handball players
( MDPI , 2021 , Article)This project investigated the effect of incorporating 8 weeks of biweekly upper limb loaded plyometric training (using elastic bands) into the in-season regimen of handball players. Participants were randomly allocated to ... -
The impact of occupancy-driven models on cooling systems in commercial buildings
( MDPI , 2021 , Article)Cooling systems play a key role in maintaining human comfort inside buildings. The key challenges that are facing conventional cooling systems are the rapid growth of total cooling energy and annual electricity consumption ... -
A Comparative Study on the Efficiency of Reliability Methods for the Probabilistic Analysis of Local Scour at a Bridge Pier in Clay-Sand-Mixed Sediments
( Multidisciplinary Digital Publishing Institute (MDPI) , 2021 , Article)In this work, the performance of reliability methods for the probabilistic analysis of local scour at a bridge pier is investigated. The reliability of bridge pier scour is one of the important issues for the risk assessment ... -
PREDICTIONS OF COVID-19 PANDEMIC DYNAMICS IN UKRAINE AND QATAR BASED ON GENERALIZED SIR MODEL
( National Technical University of Ukraine Igor Sikorsky Kyiv Polytechnic Institute , 2021 , Article)Background. To simulate how the number of COVID-19 cases increases versus time, various data sets and different mathematical models can be used. Since there are some differences in statistical data, the results of simulations ... -
Underwater friction stir welding of Al-Mg alloy: Thermo-mechanical modeling and validation
( Elsevier , 2021 , Article)The aim of this article is the in-depth analysis of material behavior during underwater friction stir welding (UFSW) of Al-Mg alloy. A thermo-mechanical model was employed to find the relation between physical changes ... -
Overcoming the energy and environmental issues of LNG plants by using solid oxide fuel cells
( Elsevier , 2021 , Article)A new intensification concept was proposed for the liquefied natural gas (LNG) plants. Our concept capitalizes on solid oxide fuel cells (SOFCs) and efficient pressure/heat recovery. Detailed processes were synthesized, ... -
Waste heat recovery in an intercooled gas turbine system: Exergo-economic analysis, triple objective optimization, and optimum state selection
( Elsevier , 2021 , Article)The development of heat and power generation systems has a major step towards sustainable development, reducing fossil energy consumption and reducing environmental pollution. Integrated energy systems are considered widely ... -
Optimal location of Electric Vehicle Rapid Charging Stations in Power Distribution Network and Transportation Network with V2G Strategies
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Conference Paper)Government organizations and the automotive industry are paying close attention to electric vehicles (EVs) because of their lower CO2 emissions, cheap maintenance, and low operating costs. EVs have a bright future ahead ...