Results 1 to 10 of about 423,623 (239)

Analysis of Interharmonics Generation in Induction Motors Driven by Variable Frequency Drives and AC Choppers

open access: yesEnergies, 2023
In modern power systems, interharmonics have emerged as noninteger frequency components that appear in current or voltage signals. Double-stage AC-DC-AC converters have been identified as a primary source of interharmonics.
Alberto Gudiño-Ochoa   +3 more
doaj   +1 more source

Genetic Programming to Remove Impulse Noise in Color Images

open access: yesApplied Sciences, 2023
This paper presents a new filter to remove impulse noise in digital color images. The filter is adaptive in the sense that it uses a detection stage to only correct noisy pixels.
Daniel Fajardo-Delgado   +4 more
doaj   +1 more source

Vestígios da memória em "Nostalgia da Luz"

open access: yesCinema & Território, 2020
O trabalho estabelece relações entre memória e paisagem no filme "Nostalgia da Luz", de Patricio Guzmán, a partir da noção de vestígio. No filme, o realizador investiga os mistérios de uma paisagem - o deserto do Atacama - para se questionar acerca da ...
Ana Costa Ribeiro
doaj   +1 more source

Stable Matching of Users in a Ridesharing Model

open access: yesApplied Sciences, 2022
A ridesharing system is a transport mode where two or more users share the same vehicle and divide the trip’s expenses based on similar routes and itineraries.
Daniel Fajardo-Delgado   +5 more
doaj   +1 more source

Satisfacción estudiantil con las clases remotas y competencias del docente en tiempos de pandemia

open access: yesInnova Research Journal, 2023
El objetivo del estudio fue determinar cómo se relaciona la satisfacción del servicio educativo con las competencias del docente en el contexto de desarrollo de asignaturas de forma remota, en tiempos de pandemia.
Lidia Luz Cruz-Neyra   +3 more
doaj   +1 more source

Winstats en el aprendizaje de estadística en los estudiantes de informática de la Universidad Enrique Guzmán y Valle-Perú

open access: yesInnova Research Journal, 2021
En el presente artículo da a conocer el efecto del software Winstats en el aprendizaje de estadística y determinar el nivel de aprendizaje en la Facultad de Ciencias, mediante un análisis teórico y práctico. La metodología de la investigación es de tipo
Lolo José Caballero-Cifuentes   +3 more
doaj   +1 more source

Impact of Solar Radiation on Luminaires and Energy Efficiency in Isolated Residential Photovoltaic Systems

open access: yesBuildings, 2023
This research centers on the implementation of photovoltaic systems in residential applications, coupled with battery-based energy storage, and evaluates their efficiency in generating energy, specifically for lighting in buildings.
Jaime Jalomo-Cuevas   +4 more
doaj   +1 more source

El Síndrome de Estocolmo en Mujeres Mexicanas Víctimas de Violencia de Pareja

open access: yesAnuario de Psicología Jurídica, 2020
El objetivo de este estudio fue indagar la presencia de síndrome de Estocolmo en mujeres mexicanas víctimas de violencia de pareja. Participaron 239 mujeres divididas en dos grupos: mujeres universitarias solteras que reportaron algún tipo de violencia ...
Lucía-Ester Rizo-Martínez   +2 more
doaj   +1 more source

Homotopy groups of generic leaves of logarithmic foliations [PDF]

open access: yes, 2019
We study the homotopy groups of generic leaves of logarithmic foliations on complex projective manifolds. We exhibit a relation between the homotopy groups of a generic leaf and of the complement of the polar divisor of the logarithmic foliation.Comment:
Rodríguez-Guzmán, Diego
core   +3 more sources

La fundación del monasterio de Santa Clara de Alcocer (1252-1260)

open access: yesHispania Sacra, 2005
En el presente artículo se estudia el proceso de fundación de un importante monasterio de clarisas castellano, el de Alcocer, a mediados del siglo XIII.
Pablo Martín Prieto
doaj   +1 more source

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