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السجلات المعروضة 1449 -- 1468 من 48433
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A triple boost 13-level switched-capacitor based multi-level inverter topology for solar PV applications
( John Wiley and Sons Ltd , 2022 , Article)A High Gain High-Level switched-capacitor multilevel inverter with low voltage stress requires a lower number of devices at peak output voltage and a reduced number of circuit components along with an increase in voltage ... -
A twelve-pulse line commutated converter drive system with vsi for starting up and active power filtering
( Institution of Engineering and Technology , 2016 , Conference Paper)Variable frequency drives (VFDs) are an integral component of the industry these days. VFDs provide a wide range of control over equipment such as, electrical motors and generators, and can be integrated in several ... -
A twice boost nine-level switched-capacitor multilevel (2B-9L-SCMLI) inverter with self-voltage balancing capability
( John Wiley and Sons Ltd , 2021 , Article)The research on the multilevel inverter structures has been focused on reducing the number of voltage sources and the components while obtaining voltage boosting in the output voltage. A lesser number of components would ... -
A two-level optimization approach for robust aircraft routing and retiming
( Elsevier Ltd , 2017 , Article)We investigate the Robust Aircraft Routing and Retiming Problem that is defined as follows. Given a set of flight legs to be served by a set of aircraft fleets, together with a tentative schedule, the problem requires ... -
A two-stage solar collector using a non-tracking conical concentrator and a glass lens for PV-TEG hybrid system
( Springer Verlag , 2018 , Article)In this paper, a newly designed two-stage solar collector using a non-tracking conical concentrator and a glass lens has been demonstrated for the application in hybrid photo-thermo-electric system (HPTES). The revealed ... -
A unified approach for calculating the outage performance of two-way af relaying over fading channels
( Institute of Electrical and Electronics Engineers Inc. , 2015 , Article)Amplify-and-forward-based two-way relaying (TWR-AF) promises significant benefits in wireless networks. In this paper, we aim to obtain unified expressions to determine the outage probability of TWR-AF, regardless of ... -
A unified damping controller for non-stationary forced oscillation
( Elsevier Ltd , 2022 , Article)Forced disturbances (FDs) with non-stationary frequencies can sequentially resonate from electromechanical modes (EMs) to sub/super synchronous modes (SSMs) and thus lead to non-stationary forced oscillations (FOs). Previous ... -
A Unified Framework for Differentiated Services in Intelligent Healthcare Systems
( IEEE , 2022 , Article)The Coronavirus disease 2019 (COVID-19) outbreak continues to significantly expose the vulnerabilities of healthcare systems around the world. These unprecedented circumstances create an opportunity for improving healthcare ... -
A Unipolar/Bipolar High-Voltage Pulse Generator Based on Positive and Negative Buck-Boost DC-DC Converters Operating in Discontinuous Conduction Mode
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Article)This paper presents a new high-voltage pulse generator, which is based on positive and negative buck-boost (BB) converters fed from a relatively low voltage dc supply. The proposed generator is able to generate unipolar ... -
A user-centric evaluation of e-government services in the GCC region: Case of state of Qatar
( IGI Global , 2016 , Article)Evaluating users' satisfaction of e-Government services has been addressed by numerous studies. These mainly looked at e-Government users as citizens who are nationals and comply with the local culture of the governments ... -
A USRP-based experimental testbed for OFDM systems impaired by I/Q imbalance
( IEEE , 2013 , Conference Paper)In this paper, an experimental testbed for packet based OFDM systems is proposed using USRP RF front-ends. I/Q imbalance estimation and compensation algorithms are implemented at the receiver by manually injecting I/Q ... -
A Validated and Applicable Direct Injection LC/MS/MS Method of Fourteen Drugs of Abuse in Urine Samples to Avoid the False Positive/Negative Results of Immunoassay Techniques in Forensic Cases
( Qatar University Press , 2020 , Poster)Many false positive and false negative results have been detected in immunoassay analyses of drugs of abuse in urine samples. A method of direct injection of diluted urine into LC/MS/MS was developed and validated for ... -
A validated design methodology for a closed-loop subsonic wind tunnel
( Elsevier Ltd , 2014 , Article)A systematic investigation into the design and simulation of flow parameters in a closed-loop wind tunnel was carried out using Computational Fluid Dynamics (CFD). The analytical model for estimating pressure losses were ... -
A vector quantization based k-NN approach for large-scale image classification
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Conference Paper)The k-nearest-neighbour classifiers (k-NN) have been one of the simplest yet most effective approaches to instance based learning problem for image classification. However, with the growth of the size of image datasets and ... -
A versatile in situ etching-growth strategy for synthesis of yolk–shell structured periodic mesoporous organosilica nanocomposites
( Royal Society of Chemistry , 2016 , Article)This paper describes a versatile in situ etching-growth strategy for the preparation of periodic mesoporous organosilica (PMO) composites with yolk-shell structure, which can generate the void space and construct the outer ... -
A virtual milling machine model to generate machine-monitoring data for predictive analytics
( Springer New York LLC , 2016 , Conference Paper)Real data from manufacturing processes are essential to create useful insights for decision-making. However, acquiring real manufacturing data can be expensive and time consuming. To address this issue, we implement a ... -
A Virtual Reality Nutrition Awareness Learning System for Children
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Conference Paper)Taking daily breakfast with healthy food is highly important for children to provide their body with indispensable nutritional elements after a lengthy rest. Skipping the morning breakfast, makes the majority of them feel ... -
A vision-based zebra crossing detection method for people with visual impairments
( IEEE , 2020 , Conference Paper)Safe navigation for visually impaired is challenging without assistive technology. This paper proposes a pedestrian crossing detection approach to help visually impaired people. We introduce the use of multiple convolutional ... -
A visual processing advantage for young-adolescent deaf observers: Evidence from face and object matching tasks
( Nature Publishing Group , 2017 , Article)It is unresolved whether the permanent auditory deprivation that deaf people experience leads to the enhanced visual processing of faces. The current study explored this question with a matching task in which observers ... -
A Visualization Training Tool for Optimum Cutting Range During Urethral Dissection in Robot-Assisted Radical Prostatectomy: A deep learning approach
(2021 , Master Thesis)Surgical training and skills assessment is one of the methodologies used by clinical practitioners to master their skills in a fault-tolerant, safe and risk-free environment. Software training tools is one of them. Narrowing ...
