Now showing items 1377-1396 of 47806

    • A survey of recommender systems for energy efficiency in buildings: Principles, challenges and prospects 

      Himeur, Yassine; Alsalemi, Abdullah; Al-Kababji, Ayman; Bensaali, Faycal; Amira, Abbes; ... more authors ( Elsevier , 2021 , Short Survey)
      Recommender systems have significantly developed in recent years in parallel with the witnessed advancements in both internet of things (IoT) and artificial intelligence (AI) technologies. Accordingly, as a consequence of ...
    • A survey of teachers' and principals' view on grade retention 

      El Hassan, Karma [كرمه الحسن] ( Qatar University , 1999 , Article)
      This study surveyed teachers' and principals' views on grade retention in grades K-13. 833 teachers and principals, a sample representative of the school population in Lebanon, were asked to fill out a questionnaire on ...
    • A survey of wireless data center networks 

      Baccour, Emna; Foufou, Sebti; Hamila, Ridha; Hamdi, Mounir ( IEEE , 2015 , Conference Paper)
      Data centers are becoming more and more popular for a wide variety of applications. However, the efficiency of data centers are restricted by many issues like cabling and maintenance problems in addition to performance ...
    • A Survey on Audio Content-Based Classification 

      Dandashi A.; Aljaam J. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)
      With the increased usage of mobile electronic devices, social media platforms, and electronic based applications in everyday life, the upload and usage of multimedia clips is exponentially increasing every year. There are ...
    • A survey on communication infrastructure for micro-grids 

      Safdar, Salman; Hamdaoui, Bechir; Cotilla-Sanchez, Eduardo; Guizani, Mohsen (2013 , Conference Paper)
      A micro-grid is a small scale power supply network that is designed to provide electricity to a small community with its own renewable energy sources. Due to distributed generation variability, security and load sharing ...
    • A survey on data center network topologies 

      Chkirbene, Zina; Hamila, Ridha; Foufou, Sebti ( Springer , 2018 , Conference Paper)
      Data centers are the infrastructures that support the cloud computing services. So, their topologies have an important role on controlling the performance of these services. Designing an efficient topology with a high ...
    • A Survey on Deep-Learning-Based Diabetic Retinopathy Classification 

      Sebastian, Anila; Elharrouss, Omar; Al-Maadeed, Somaya; Almaadeed, Noor ( MDPI , 2023 , Article Review)
      The number of people who suffer from diabetes in the world has been considerably increasing recently. It affects people of all ages. People who have had diabetes for a long time are affected by a condition called Diabetic ...
    • A survey on educational ontologies and their development cycle 

      Karkar, AbdelGhani; Al Ja'am, Jihad Mohamad; Foufou, Sebti ( Springer New York LLC , 2016 , Conference Paper)
      Nowadays, the grid of Internet has demonstrated to be plentiful and tremendous data source of information, where diverse domains can be reached and mined. Semantic web is part of the Internet grid where knowledge is provided ...
    • A Survey on Mobile Crowd-Sensing and Its Applications in the IoT Era 

      AbualSaud, Khalid; Elfouly, Tarek M.; Khattab, Tamer; Yaacoub, Elias; Ismail, Loay Sabry; ... more authors ( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article Review)
      Mobile crowd-sensing (MCS) is a new sensing paradigm that takes advantage of the extensive use of mobile phones that collect data efficiently and enable several significant applications. MCS paves the way to explore new ...
    • A Survey on Mobile Edge Computing for Video Streaming: Opportunities and Challenges 

      Khan, Muhammad Asif; Baccour, Emna; Chkirbene, Zina; Erbad, Aiman; Hamila, Ridha; ... more authors ( IEEE , 2022 , Article)
      5G communication brings substantial improvements in the quality of service provided to various applications by achieving higher throughput and lower latency. However, interactive multimedia applications (e.g., ultra high ...
    • A survey on recent approaches in intrusion detection system in IoTs 

      Tabassum, Aliya; Erbad, Aiman; Guizani, Mohsen ( Institute of Electrical and Electronics Engineers Inc. , 2019 , Conference Paper)
      Internet of Things (IoTs) are Internet-connected devices that integrate physical objects and internet in diverse areas of life like industries, home automation, hospitals and environment monitoring. Although IoTs ease daily ...
    • A survey on selfreported handling practices and food safety knowledge of workers at the major produce market in Qatar 

      El-Nemr, Israa; Mushtaha, Mohanad; Asim, Hammad; Goktepe, Ipek ( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference Paper)
      Food handling practices (FHP) is one of the most important stage where microbes can be introduced into produce through the infected food handlers or by cross-contamination. The fresh produce market in Doha, Qatar is the ...
    • A survey on service function chaining 

      Bhamare, Deval; Jain, Raj; Samaka, Mohammed; Erbad, Aiman ( Academic Press , 2016 , Article)
      Cloud computing is gaining significant attention and virtualized datacenters are becoming popular as a cost-effective infrastructure. The network services are transitioning from a host-centric to a data-centric model moving ...
    • A survey on the awareness and attitude of pharmacists and doctors towards the application of pharmacogenomics and its challenges in Qatar 

      Elewa, Hazem; Alkhiyami, Dania; Alsahan, Dima; Abdel-Aziz, Ahmed ( John Wiley & Sons, Ltd. , 2015 , Article)
      RATIONALE, AIMS AND OBJECTIVES: Pharmacists are expected to play an important role in applying pharmacogenomics discoveries to patient care. Despite the increased attention to genetic research in Qatar, clinicians' attitudes ...
    • A Survey on the Awareness and Attitude of Physicians on Direct Oral Anticoagulants in Qatar 

      El-BardissyA.; ElewaH.; MohammedS.; ShibleA.; ImanullahR.; ... more authors ( SAGE Publications Inc. , 2018 , Article)
      Direct oral anticoagulants (DOACs) are more commonly prescribed since their introduction. Reports on inappropriate prescribing have been observed which may indicate poor awareness on these agents. In this study, we aim to ...
    • A sustainable approach to synthesize phosphonated chitosan using ball milling and its application for oilfield scale management 

      Mady, Mohamed F.; Haukereid, Eirik; Abdel-Azeim, Safwat; Hussein, Ibnelwaleed A.; Kelland, Malcolm A. ( Royal Society of Chemistry , 2022 , Article)
      For many years, the oil and gas industry has strived to develop environmentally friendly organophosphorus-based scale inhibitors. The natural polymer chitosan has recently gained significant importance for various upstream ...
    • A Switched Capacitor Triple Boost Single-Source Thirteen-level Inverter 

      Zaid, Mohammad; Tayyab, Mohammad; Moonis, Ahmad Rafey; Bakhsh, Farhad Ilahi; Sarwar, Adil; ... more authors ( Institute of Electrical and Electronics Engineers Inc. , 2023 , Conference Paper)
      Switched capacitor (SC) networks are generally used to increase the voltage gain of inverters. This work proposes a single-phase switched capacitor multilevel inverter (MLI) capable of producing 13 levels of output voltage ...
    • A Switched Capacitor-Based 13-Level Inverter With Reduced Switch Count 

      Islam, Shirazul; Siddique, Marif Daula; Iqbal, Atif; Mekhilef, Saad; Al-Hitmi, Mohammed ( Institute of Electrical and Electronics Engineers Inc. , 2022 , Conference Paper)
      In this article, a 13-level switched capacitor multilevel inverters (SC-MLI) based single-phase inverter is proposed in which desired levels of output ac voltage are realized with reduced number of switch counts. The ...
    • A switched PV approach for extracted maximum power enhancement of PV arrays during partial shading 

      Elserougi, A. A.; Diab, M. S.; Massoud, Ahmed; Abdel-Khalik, A. S.; Ahmed, S. ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Article)
      This paper proposes a switched photovoltaic (PV) approach to enhance the extracted maximum power from a PV array during partial shading conditions. The proposed system is simple and cost effective. However, it may provide ...
    • A switched-capacitor multilevel inverter topology employing a novel variable structure nearest-level modulation 

      Sarwer, Zeeshan; Siddique, Marif Daula; Sarwar, Adil; Zaid, Mohammad; Iqbal, Atif; ... more authors ( John Wiley and Sons Ltd , 2021 , Article)
      This article introduces a nine-level switched-capacitor multilevel inverter with twice voltage boosting feature. It also aims at proposing a novel variable structure nearest-level modulation scheme that has been implemented ...