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السجلات المعروضة 1511 -- 1530 من 50806
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A threshold-based opportunistic MAC protocol for MIMO wireless sensor networks
( IEEE , 2012 , Conference Paper)In this paper, we consider a single-hop wireless sensor network where both the sensor nodes and the controller node have multiple antennas. We focus on single beam opportunistic communication and propose a threshold-based ... -
A toolset for the specification and verification of embedded systems
( IEEE , 2003 , Conference Paper)Because of many malfunctions of some critical real-time systems (Pentium bug, Ariane lance rocket), which have caused life and billion dollars loss, computer aided formal methods have been developed and successfully applied ... -
A Transformerless Bipolar/Unipolar High-Voltage Pulse Generator with Low-Voltage Components for Water Treatment Applications
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Article)Pulsed electric field is a commonly used and effective disinfection method in drinking water treatment applications. In this paper, a transformerless unipolar/bipolar high-voltage pulse generator is presented with ... -
A transformerless high gain dc-dc boost converter with reduced voltage stress
( John Wiley and Sons Ltd , 2021 , Article)In this paper, a modified and improved high gain dc-dc boost converter is proposed. The converter has utilized two voltage multiplier cells (VMCs) comprising switched capacitors (SC) and switched inductors (SL) to increase ... -
A transformerless STATCOM based on a hybrid Boost Modular Multilevel Converter with reduced number of switches
( Elsevier Ltd , 2017 , Article)This paper proposes a new three-phase transformerless STATic synchronous COMpensator (STATCOM) for shunt reactive power compensation in medium/high-voltage applications. The proposed STATCOM is based on a hybrid Boost ... -
A treatment wetland park assessment model for evaluating urban ecosystem stability using analytical hierarchy process (AHP)
( Dorma Journals , 2019 , Article)The increased impervious and built-up urban areas threat ecosystem stability through major environmental problems, such as surface runoff, flooding, and wildlife habitat resource depletion. Hence, urban ecologists and ... -
A Triangulation Study to Assess the Perceived City Image in the Arab Middle East Context: The Case of Al-Ain in the UAE
( Routledge , 2018 , Article)The study of city image has become a subject of increasing interest to researchers and practitioners. However, although many studies have found that success of an area�s tourist development depends crucially on its image, ... -
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 ...
