Qatar University Institutional Repository
The top service priorities of QSpace are to collect materials originating from faculty, students, and guests of Qatar University, provide necessary metadata to fulfill a complete bibliographic record, provide open access full-text content to everyone, and preserve content in a secure format for long-term continued access.
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Recent Submissions
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Ethnocentrism and Country-of-origin Effects: The Asian Consumers Perspective
( Qatar University Press , 2025 , Book)This book aims to investigate how ethnocentrism and the country-of-origin (COO) effects shape consumer perceptions and purchasing decisions, particularly from an Asian perspective. By exploring sociocultural and psychological ... -
Pharmacists’ perceptions of the impact of Objective Structured Clinical Examination on professional development and competence: a cross-sectional study in Qatar
( Oxford University Press , 2025 , Article)Objectives: The Objective Structured Clinical Examination (OSCE) is a key tool in healthcare education, assessing clinical skills and competencies. This study explores OSCE’s impact on pharmacists’ competence, confidence, ... -
Optimization of wire electrical discharge turning process: trade-off between production rate and fatigue life
( Springer Science and Business Media Deutschland GmbH , 2021 , Article)Turning by wire electrical discharge machining (WEDT) has been proven as a successful cutting process for producing complex geometries in difficult-to-cut round bars. However, effects of the process factors on fatigue life ... -
Penetration of Electric Vehicles in Gulf Region and its Influence on Energy and Economy
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)Electric mobility seems to bring a paradigm shift in the road transport sector worldwide. Huge consumption of fossil fuels and ever-increasing traffic congestion have caused concerns over future energy consumption, economy ... -
Step-by-Step Design and Simulation of Boost Controller for L- and LCL-Filters for EV Fast Charging Systems
( Springer Science and Business Media Deutschland GmbH , 2021 , Conference Paper)Adoption of electric vehicles (EVs) is an important measure for greenhouse gas reduction in many countries worldwide. The increased production of EV in the market will be associated with continuous demand of installing and ... -
Implementation and Analysis of a 15-Level Inverter Topology with Reduced Switch Count
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)Multilevel inverters remain an area of research interest due to the superior performance against a two-level counterpart. Reducing the switch count and stress on the power electronic switches while maintaining a sinusoidal ... -
New Asymmetrical Modular Multilevel Inverter Topology with Reduced Number of Switches
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)In this article, a new single-phase multilevel inverter is introduced with a reduced number of power switches and reduced voltage stress on power switches. The proposed topology consists of four input dc sources and nine ... -
A Simple Guide for Plotting a Proper Bifurcation Diagram
( World Scientific , 2021 , Article)In this paper, we propose a guideline for plotting the bifurcation diagrams of chaotic systems. We discuss numerical and mathematical facts in order to obtain more accurate and more elegant bifurcation diagrams. The ... -
Prediction of neural space narrowing and soft tissue injury of the cervical spine concerning head restraint arrangements in traffic collisions
( MDPI AG , 2021 , Article)Common quantitative assessments of neck injury criteria do not predict anatomical neck injuries and lack direct relations to design parameters of whiplash-protection systems. This study aims to provide insights into potential ... -
Forms of implementation and challenges of PBL in engineering education: a review of literature
( Taylor and Francis Ltd. , 2021 , Article)During the last 40 years, problem- and project-based learning (PBL) has been widely adopted in engineering education because of its expected effectiveness in developing students' professional knowledge and transferable ... -
Dynamic Substitution and Confusion-Diffusion-Based Noise-Resistive Image Encryption Using Multiple Chaotic Maps
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)The advancement in wireless communication has encouraged the process of data transferring through the Internet. The process of data sharing via the Internet is prone to several attacks. The sensitive information can be ... -
Thermodynamic modeling and comparative analysis of a compressed air energy storage system boosted with thermoelectric unit
( Elsevier , 2021 , Article)Current study represents the thermodynamic modeling and exergy analysis of a compressed air energy storage system boosted with thermoelectric generator (CAES/TEG). To evaluate the studied system, a comparative analysis ... -
Robust Synthetic Control Charting
( Faculty of Engineering, Universitas Indonesia , 2021 , Article)The proposal of synthetic charting is based on the normality assumption. This assumption, however, is hard to attain in practice. Therefore, it is important to examine how the chart would response under some types of ... -
A Cross Connected Asymmetrical Switched-Capacitor Multilevel Inverter
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)A Switched-Capacitor Multilevel Inverter (SCMLI) topology is proposed here, which can generate up to fifteen levels with one unit and can be extended further for getting higher levels. The proposed SCMLI has a lesser number ... -
Harmonics minimization in multilevel inverter by continuous mode aco technique
( Springer Science and Business Media Deutschland GmbH , 2021 , Conference Paper)Low switching frequency operation of multilevel inverter enables it for applications in high power processing needs. The stepped waveform synthesized from multilevel inverter after Fourier series analysis will result in ... -
Comparison of Direct Torque Control and Indirect Field-Oriented Control for Three-Phase Induction Machine
( Springer Science and Business Media Deutschland GmbH , 2021 , Conference Paper)Induction motors turn out to be the economical workhorses in the industry for the AC motor drive application. To satisfy the steady-state and transient performance specification of AC drives, control techniques are required ... -
Approximate Efficient Solutions of Nonsmooth Vector Optimization Problems via Approximate Vector Variational Inequalities
( Springer Science and Business Media Deutschland GmbH , 2021 , Book chapter)In this work, we demonstrate the connection between the solutions of approximate vector variational inequalities and approximate efficient solutions of corresponding nonsmooth vector optimization problems via generalized ... -
Resilience-Oriented Behind-the-Meter Energy Storage System Evaluation for Mission-Critical Facilities
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)Immunization of mission-critical facilities such as hospitals and first responders against power outages is crucial for the operators due to their significant value of the lost load, affecting citizens' lives. This paper ... -
A Noise-Tolerant Audio Encryption Framework Designed by the Application of S8Symmetric Group and Chaotic Systems
( Hindawi Limited , 2021 , Article)The recent decade has witnessed an exponential surge of digital content, especially multimedia and its applications. The security requirements of these innovative platforms necessitate the significance of enhancing advanced ... -
Cryptanalysis of Novel Image Encryption Scheme Based on Multiple Chaotic Substitution Boxes
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)In current years many chaos-based Substitution boxes (S-boxes) have been proposed. Recently, an image encryption technique based on multiple chaotic S-box was offered. This encryption method was based on the concept of ...
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