Results 51 to 60 of about 341,483 (211)

Analysis and simulation of a three-phase controlled Active Front End Rectifier (AFE) [PDF]

open access: yes, 2015
This paper presents a result of research financed with own resources; It presents a state-space model of a three-phase controlled Active Front End rectifier.
Campo Ossa, Daniel Darío   +2 more
core  

Crouching Tiger, Hidden Dragon: An Offensive Realist Reconsideration of Philippine Grand Strategy

open access: yesAsian Politics &Policy, Volume 17, Issue 3, July 2025.
ABSTRACT In regions riddled with heightened security tensions from great power competition like Southeast Asia, why do states like the Philippines defy conventional rationality and hedge against their treaty ally? This paper seeks to answer this gap in the literature by arguing for a new definition of hedging that covers contemporary cases.
Jomari Jesus G. Tan
wiley   +1 more source

Comparison of Three-Phase Rectifier with Symmetrical Switching and AC-AC Converter for the Power Factor Improvement in Hydroelectric Micro-Plants

open access: yesRevista Iberoamericana de Automática e Informática Industrial RIAI, 2017
Many of hydroelectric micro-plants, useful for the electricity production at intricate regions, operate in autonomous regimen. Therefore, it is necessary to accomplish the control of frequency.
Henry Bory Prevez   +4 more
doaj   +1 more source

Simulación del comportamiento del subsistema de potencia del satélite Lian-He bajo unos parámetros de misión típicos = Simulation of the Lian-Hé satellite power subsystem under typical LEO mission requirements [PDF]

open access: yes, 2017
En el proceso de diseño de sistemas espaciales, el subsistema de generación y distribución de potencia resulta crítico. Para percibirlo basta con pensar en la dependencia energética de gran parte de los demás subsistemas.
Aguado Benito, Carlos   +12 more
core  

Renaissance Culture, Emblems, and Interdisciplinary Research: The Reception of Alciato in Coimbra☆

open access: yesRenaissance Studies, Volume 39, Issue 3, Page 394-418, June 2025.
Abstract Bearing in mind that emblem books were a manifestation of humanistic culture and its natural interdisciplinary, this paper discusses how the early reception of Alciato's Emblemata in Coimbra (Portugal) had an impact on artists, literary authors, jurists, and Jesuit teachers.
Filipa Araújo
wiley   +1 more source

Evaluación de los riesgos del proceso de generación de energía en una central termoeléctrica

open access: yesRevista Científica de Ingeniería Energética, 2018
Este trabajo se desarrolló en la Central Eléctrica 10 de Octubre de Nuevitas con el objetivo de evaluar los riesgos que afectaron el factor de potencia disponible.
Rafael Carter Carrión   +3 more
doaj  

Análisis y simulación de un rectificador trifásico controlado Active Front End (AFE)

open access: yesRevista Ingenierías Universidad de Medellín, 2016
Este artículo presenta un resultado de investigación financiado con recursos propios en el que se expone un modelo en espacio de estados de un rectificador trifásico controlado active front end.
Daniel Darío Campo Ossa   +2 more
doaj   +1 more source

Automated multivolume placental reconstruction using three‐dimensional power Doppler ultrasound and infrared camera tracking

open access: yesUltrasound in Obstetrics &Gynecology, Volume 65, Issue 5, Page 624-632, May 2025.
ABSTRACT Objectives Placental insufficiency contributes to many obstetric pathologies, but there is no bedside clinical tool to evaluate placental perfusion. We have developed a method to acquire multiple three‐dimensional (3D) power Doppler (PD) ultrasound (US) volumes of placental vasculature, with infrared camera tracking of the precise spatial ...
A. Xue   +5 more
wiley   +1 more source

El control de la potencia en la preparación de un grupo de escaladores de competición [PDF]

open access: yes, 2002
En el presente estudio se han controlado y analizado los valores medios de la potencia desarrollada por un grupo de escaladores de competición, durante el período de preparación, frente a cargas representativas del 50 %, 60 %, 70 % y 80 % de 1 RM –FDM ...
Badia, Eva   +4 more
core  

cSi Photovoltaic Modules, Main Degradation Factors Case Study: La Puna (Argentina) [PDF]

open access: yes, 2016
This paper presents an analysis of the power loss of a set of photovoltaic modules exposed for more than fifteen years to solar radiation and other environmental factors. The study covered modules installed in 1989 and concluded with modules installed in
Cadena, Carlos Alberto   +2 more
core   +1 more source

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