Browsing Electrical Engineering by Title
Now showing items 2405-2424 of 2610
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Study of Nature Inspired Power-aware Wake-Up Scheduling Mechanisms in WSN
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference Paper)The Internet of Things (IoT) has the potentialities to advance the concretisation of the smart world through a wide interaction between the human society with its physical environment. This interaction is enabled by Wireless ... -
Study of the effects of dust, relative humidity, and temperature on solar PV performance in Doha: Comparison between monocrystalline and amorphous PVS
( Taylor & Francis , 2013 , Article)The sensitivity of various solar photovoltaic technologies to dust, temperature, and relative humidity is investigated for Doha's environment. Results obtained show that monocrystalline photovoltaics (PVs) have efficiencies ... -
Study of voltage source converter-based HVDC system during DC side faults
( IEEE , 2013 , Conference Paper)Recently voltage source converter-based HVDC technology has witnessed a remarkable development due to the several advantages it exhibits over the conventional HVDC systems. However, one of the main remaining challenges is ... -
Study of π-conjugation effect of organic semiconductors on their optical parameters
( Elsevier B.V. , 2016 , Article)Metal free organic semiconductor “7,16-bis(3,3-dimethyl-3H-indol-2-yl)-5,14-dihydrodibenzo [b,i][1,4,8,11] tetraazacyclotetradecine” and metal free with extended π-conjugation organic semiconductor “8,19-bis(3,3-dimethyl ... -
Studying the effect of over-modulation on the output voltage of three-phase single-stage grid-connected boost inverter
( Elsevier B.V. , 2013 , Article)Voltage boosting is very essential issue in renewable-energy fed applications. The classical two-stage power conversion process is typically used to interface the renewable energy sources to the grid. For better efficiency, ... -
Sub-channels selection schemes with interference management for underlay cognitive networks
( IEEE , 2013 , Conference Paper)Cognitive Radio is a promising concept that offers solution to spectral crowding problem by introducing opportunistic usage of the unoccupied licensed frequency bands. Improving the network capacity and reliability of the ... -
Suboptimal control reconfiguration in switched multi-agent networked systems
( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)In this work, the control recovery problem in a directed network of switched multi-agent systems is studied. A distributed cooperative control strategy is proposed which ensures that the agents reach a consensus while the ... -
Substation expansion deferral by multi-objective battery storage scheduling ensuring minimum cost
( Elsevier Ltd , 2020 , Article)Ever-increasing consumption of the electricity in the distribution networks encounters network planners with new challenges in terms of expansion requirements. Expanding substations is a technical concern considering various ... -
Surface Acoustic Wave (SAW) Sensors for Hip Implant: A Numerical and Computational Feasibility Investigation Using Finite Element Methods
( MDPI , 2023 , Article)In this paper, a surface acoustic wave (SAW) sensor for hip implant geometry was proposed for the application of total hip replacement. A two-port SAW device was numerically investigated for implementation with an operating ... -
Surface-type nonvolatile electric memory elements based on organic-on-organic CuPc-H
( Institute of Physics Publishing , 2015 , Article)A novel surface-type nonvolatile electric memory elements based on organic semiconductors CuPc and H2Pc are fabricated by vacuum deposition of the CuPc and H2Pc films on preliminary deposited metallic (Ag and Cu) electrodes. ... -
Surrogate data test for nonlinearity of EEG signals: A newborn EEG burst suppression case study
( Elsevier Inc. , 2017 , Article)This paper applies the surrogate data method to investigate the presence of nonlinearity in neonatal electroencephalogram (EEG) burst suppression (B/S) patterns in order to rationalize the use of nonlinear methods for ... -
Surround-Screen Mobile based Projection: Design and Implementation of Mobile Cave Virtual Reality
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Article)Virtual Reality (VR) is the employment of computer devices to simulate real or imaginary environments. Conventional user interfaces stresses the usage of screen displays to interact with the developed environment. The ... -
Survey about public perception regarding smart grid, energy efficiency & renewable energies applications in Qatar
( Elsevier Ltd , 2018 , Article Review)In a low-carbon and sustainable future, smart grids have a key role to play not only in saving energy with demand and supply-side management of energy systems, but also in optimizing the integration of a wider range of ... -
Sustainable and reliable hybrid AC/DC microgrid planning considering technology choice of equipment
( Elsevier , 2020 , Article)Today, the microgrid is not a new concept, and its diverse benefits for the grid and also consumers have been proven. One of the effective ways to enhance penetration level of the microgrids is to improve economic ... -
Swinging with the Jet Set: Analysis of Electromagnetic Fields Inside Jet Engines - From Numerical and Experimental Analysis to Statistical Analysis
( Institute of Electrical and Electronics Engineers Inc. , 2016 , Article)Analyzing electromagnetic propagation inside jet engine turbines is a challenging and important research topic due to its potential applications in both civil and military fields. Electromagnetic modeling of such complex ... -
Switched Inductor Quazi Switched boost Converter for Nano - Grid Applications
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Conference Paper)Each commercial and residential buildings energy management system can be efficiently/ economically realized by integration of the solar photovoltaics (acting as the renewable power generator), battery energy storage system ... -
Switched mode power supplies for charge-up, discharge and balancing dc-link capacitors of diode-clamped five-level inverter
( IET , 2010 , Article)Inductor switch mode power supplies (SMPS) operated in a discontinuous inductor current mode are used to balance the dc-link capacitor voltages of a diode-clamped five-level inverter. The SMPS concept is extended to charge ... -
Switching angles computations using pso in selective harmonics minimization pwm
( Springer Science and Business Media Deutschland GmbH , 2021 , Book chapter)The preprogrammed pulse width modulation (PWM) method for operating power converters ensures minimum switching loss and at the same time better quality waveform at the output. The Fourier series analysis of the predefined ... -
Switchless power decoupling and switchless leakage current elimination in grid-tied inverters
( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)This paper presents a grid-tied single-phase transformerless inverter that eliminates simultaneously the leakage current issue and the double grid frequency power pulsation without additional active circuitry. The control ... -
Symmetric and Asymmetric Multilevel Inverter Topologies With Reduced Device Count
( Institute of Electrical and Electronics Engineers Inc. , 2023 , Article)In this work, two new topologies of single-phase hybrid multilevel inverters for symmetrical and asymmetrical configurations are presented for use in drives and control of electrical machines and the connection of renewable ...