Browsing by Title
Now showing items 6973-6992 of 53172
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Deadbeat control of Z source inverter with voltage ride-through capability
( IEEE , 2013 , Conference Paper)This paper presents a Z source inverter connected to grid. The effect of voltage sags on ZSI will be studied when two different ac side control schemes are used. The paper compares the performance of both PI control and ... -
Deadbeat control with multi-sampling compensation for medium-voltage motor drives by cascaded multi-cell inverter using FPGA based hardware controller
( IEEE , 2011 , Conference Paper)Multi-cell inverter include an array of single-phase inverters capable of handling higher voltage ratings with lower rating power electronics devices. In this paper, a deadbeat control combined with a multi-sampling ... -
Deadbeat current control of qZS based grid-connected multilevel inverter
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Conference Paper)This paper proposes a Current Deadbeat Control (DBC) algorithm for a three-phase 9-cells qZS based Cascaded H-Bridge (CHB) inverter to ensure grid current supply with low THD. The studied topology is considered as a ... -
Dealing with the Challenges: GCC Institutional Responses to the Covid-19 and Arab Spring
( Springer Nature , 2023 , Book chapter)Like it happened after the Arab Uprisings in 2011, a development originated outside the GCC region-the outbreak of the Covid-19 pandemic-directly affected all its members and required a quick reaction from the authorities. ... -
Dean's List Ceremony - College of Medicine حفل تكريم لائحة العميد - كلية الطب
( Qatar University , 2021 , Video) -
Deanonymizing tor hidden service users through bitcoin transactions analysis
(2017 , Master Thesis)With the rapid increase of threats on the Internet, people are continuously seeking privacy and anonymity. Services such as Bitcoin and Tor were introduced to provide anonymity for online transactions and Web browsing. Due ... -
Dean’s List Ceremony – CPH
( Qatar University , 2022 , Video) -
Dean’s list College Pharmacy
( Qatar University , 2022 , Video) -
Dean’s List Recognition Day- 2021 (Female)
( جامعة قطر , 2022 , Video) -
Dean’s List Recognition Day- 2021 (Male)
( Qatar University , 2022 , Video) -
Death by suicide during COVID-19 infection: Two case reports
( HBKU Press , 2023 , Article)A range of psychiatric disorders has been recognized with coronavirus disease 2019 (COVID-19) infection, including acute stress, anxiety, depression, suicidal behavior, and post-traumatic stress disorder. Among those, the ... -
Debate: Reimagining strategic management of social responsibilities in US universities—A comment on George et al. (2023)
( Taylor and Francis [Routledge] , 2023 , Article)The focus on the social responsibilities of universities has been increasingly emphasized in recent years, pushing these institutions to go beyond their conventional mission and address emerging societal challenges. This ... -
Debt maturity, financial crisis and corporate performance in GCC countries: A dynamic-GMM approach
( Inderscience Publishers , 2015 , Article)This study investigates the effect of debt financing and debt maturity on corporate performance, using evidence from Gulf Cooperation Council countries (GCC): Qatar, Oman, Kuwait, Kingdom of Saudi Arabia, United Arab ... -
A decade of development: The civil and commercial court of the Qatar financial centre
( Brill Academic Publishers , 2020 , Article)© 2020 Copyright 2020 by Koninklijke Brill NV, Leiden, The Netherlands. The Qatar International Court is a new breed of judicial tribunal inspired by the English Commercial Court based in London. It provides a dispute ... -
A decade of intestinal protozoan epidemiology among settled immigrants in Qatar
( PubMed Central , 2016 , Article)Background: The World Health Organization estimates that about 3.5 billion people worldwide are affected by intestinal parasitic infections. Reports have already emphasized the role of immigrants in outbreaks of ... -
Decapod assemblages in subtidal and intertidal zones—Importance of scuba diving as a survey technique in tropical reefs, Brazil
( Elsevier , 2015 , Article)Decapods play a crucial role within the reef ecosystem and the development of scuba diving as a survey tool has allowed researchers the opportunity to study the decapod–reef relationship more comprehensively. The present ... -
Decarbonizing Bitcoin: Law and policy choices for reducing the energy consumption of Blockchain technologies and digital currencies
( Elsevier , 2018 , Article)The vast transactional, trust and security advantages of Bitcoin are dwarfed by the intentionally resource-intensive design in its transaction verification process which now threatens the climate we depend upon for survival. ... -
Decentralization of Mental Health Services in Qatar: A Promising Model for Enhancing Access and Optimizing Care
( Elsevier , 2021 , Other)In 2001, the World Health Organization (WHO) called for coordinated global efforts in reframing mental health agenda and broadening the conceptualization of mental disorders. A wider scope and better quality of service ... -
Decentralized broadcast encryption schemes with constant size ciphertext and fast decryption
( MDPI AG , 2020 , Article)Broadcast encryption (BE) allows a sender to encrypt a message to an arbitrary target set of legitimate users and to prevent non-legitimate users from recovering the broadcast information. BE has numerous practical ... -
Decentralized ciphertext-policy attribute-based encryption schemes for lightweight devices
( Elsevier B.V. , 2019 , Article)In a traditional attribute-based encryption (ABE) system, there is only one central authority who generates and hence knows the secret keys of all users, this problem is known as the key escrow problem. An ABE scheme which ...