Results 91 to 100 of about 2,139 (183)
On Integration Policies and Schooling [PDF]
This paper proposes a reform for school allocation procedures in order to help integration policies reach their objective. For this purpose, we suggest the use of a natural two-step mechanism. The (stable) first step is introduced as an adaptation of the
Alcalde, Jose, Subiza, Begoña
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Impacts of the global crisis period 2007- 2010 on the automotive industry in the Czech Republic [PDF]
, 2017 The main aim of this article was to analyse the possible intensity of dependency of the Czech Republic, or more precisely, its total economic indicator Gross Domestic Product on realized Sales sector of the automotive industry before crisis, during the ...
Sedláček, Marek
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Energies, 2017 Harmonic distortion in power networks has greatly reduced power quality and this affects system stability. In order to mitigate this power quality issue, the shunt active power filter (SAPF) has been widely applied and it is proven to be the best ...
Suleiman Musa +5 more
doaj +1 more source
Generalized one-cycle current controller for improved SAPF power quality management
International Journal of Electrical Power & Energy Systems[EN] Current controllers are used in shunt active power filters to enhance the performance of electrical power systems by improving power quality and energy efficiency. Nonlinear current controllers are preferred in systems with nonlinear and dynamic loads due to their robust and rapid tracking of varying reference currents.
S. Orts-Grau +4 more
openaire +2 more sources
The use of"asset swaps"by institutional investors in South Africa [PDF]
Leading financial economists have proposed the use of international asset swaps (Merton 1990, Bodie and Merton 2002) as a way of efficiently achieving international diversification without eroding the level of foreign exchange reserves and weakening ...
Dimitri Vittas
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Ubicación y dimensionamiento de SAPF en redes de distribución
An adaptive step-based method is proposed for locating and sizing SAPFs in distribution networks. Applied to the IEEE 69-busbar system, it reduces total harmonic distortion, improves the voltage profile, and decreases losses, ensuring compliance with the IEEE-519/2022 standard.
Maguana Zhindón, Darwin Patricio +1 more
openaire +1 more source
Cholinergic neural activity directs retinal layer-specific angiogenesis and blood retinal barrier formation. [PDF]
, 2019 Blood vessels in the central nervous system (CNS) develop unique features, but the contribution of CNS neurons to regulating those features is not fully understood. We report that inhibiting spontaneous cholinergic activity or reducing starburst amacrine
Angelopoulos, CM +8 more
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Control de la tensión del bus de continua de un filtro activo mediante un convertidor DC-DC [PDF]
, 2015 En este artículo se presentan los resultados experimentales obtenidos mediante un sistema compensador generador trabajando de forma aislada de la red eléctrica. Para analizar el funcionamiento del sistema se ha desarrollado un prototipo de un convertidor
Alfonso, j. Carlos +6 more
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Grid power quality enhancement by nonlinear control of voltage source inverter
Journal of Engineering Research and ReviewsAim/Background: Maintaining power quality in grid-connected systems with renewable energy sources, particularly solar, is a significant challenge due to stringent requirements for harmonic mitigation. Voltage source inverters serve as critical interfaces
Muhammad imran +4 more
doaj +1 more source
Smart battery charger for electric mobility in smart grids [PDF]
, 2012 In this paper is presented the development of a smart batteries charger for Electric Vehicles (EVs) and Plug-in Hybrid Electric Vehicles (PHEVs), aiming their integration in Smart Grids.
Afonso, João L. +2 more
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