Results 21 to 30 of about 48,832 (182)

Estudio comparativo de técnicas espaciales para la identificación de defectos en textiles

Iteckne, 2010
En este artículo se utilizan técnicas de procesamiento de imágenes para la detección de defectos en textiles en el sector industrial. Se evalúa el desempeño de tres técnicas espaciales con descriptores estadísticos para la extracción de características ...
José Armando Fernández, José David Alvarado Moreno, Diego Mauricio Florián, César Augusto Sánchez   +3 more
doaj   +1 more source

npphen: An R-Package for Detecting and Mapping Extreme Vegetation Anomalies Based on Remotely Sensed Phenological Variability

Remote Sensing, 2022
Monitoring vegetation disturbances using long remote sensing time series is crucial to support environmental management, biodiversity conservation, and adaptation strategies to climate change from global to local scales.
Roberto O. Chávez, Sergio A. Estay, José A. Lastra, Carlos G. Riquelme, Matías Olea, Javiera Aguayo, Mathieu Decuyper   +6 more
doaj   +1 more source

A Framework for Evaluating Renewable Energy for Decision-Making Integrating a Hybrid FAHP-TOPSIS Approach: A Case Study in Valle del Cauca, Colombia

Data, 2023
At present, the energy landscape of many countries faces transformational challenges driven by sustainable development objectives, supported by the implementation of clean technologies, such as renewable energy sources, to meet the flexibility and ...
Mateo Barrera-Zapata, Fabian Zuñiga-Cortes, Eduardo Caicedo-Bravo   +2 more
doaj   +1 more source

MODIS Time Series Reveal New Maximum Records of Defoliated Area by Ormiscodes amphimone in Deciduous Nothofagus Forests, Southern Chile

Remote Sensing, 2023
Outbreaks of the Ormiscodes amphimone moth are among the largest biotic disturbances in South America, defoliating vast areas of native Nothofagus pumilio forests in the Chilean and Argentinian Patagonia in the last decade.
Sergio A. Estay, Roberto O. Chávez, José A. Lastra, Ronald Rocco, Álvaro G. Gutiérrez, Mathieu Decuyper   +5 more
doaj   +1 more source

Multichannel perimetric alterations in systemic lupus erythematosus treated with hydroxychloroquine

Journal of Optometry, 2017
Systemic lupus erythematosus (SLE) is a multiorgan autoimmune disease of unknown etiology with many clinical manifestations. We report the first case of SLE in which visual alterations were evaluated with multichannel perimetry. Some achromatic and color
David P. Piñero, Begoña Monllor, Vicente J. Camps, Dolores de Fez   +3 more
doaj   +1 more source

Selección de Personal mediante Redes Neuronales Artificiales

Revista de Matemática: Teoría y Aplicaciones, 2011
We study the personnel selection problem by the application of techniques of computing intelligence for the classification of psychological patterns. The system is based on the psychological test 16-PF, for the extraction of the First Order factors and ...
German Leonardo Acevedo Orduña, Eduardo Francisco Caicedo Bravo, Humberto Loaiza Correa   +2 more
doaj   +1 more source

Sound Spectrum Influences Auditory Distance Perception of Sound Sources Located in a Room Environment

Frontiers in Psychology, 2017
Previous studies on the effect of spectral content on auditory distance perception (ADP) focused on the physically measurable cues occurring either in the near field (low-pass filtering due to head diffraction) or when the sound travels distances >15 ...
Ignacio Spiousas, Pablo E. Etchemendy, Manuel C. Eguia, Esteban R. Calcagno, Ezequiel Abregú, Ramiro O. Vergara   +5 more
doaj   +1 more source

In Vitro Aberrometric Assessment of a Multifocal Intraocular Lens and Two Extended Depth of Focus IOLs

Journal of Ophthalmology, 2017
Purpose. To analyze the “in vitro” aberrometric pattern of a refractive IOL and two extended depth of focus IOLs. Methods. A special optical bench with a Shack-Hartmann wavefront sensor (SH) was designed for the measurement.
Vicente J. Camps, Angel Tolosa, David P. Piñero, Dolores de Fez, María T. Caballero, Juan J. Miret   +5 more
doaj   +1 more source

Magnitude of the contralateral efferent olivocochlear effect as a function of the frequency

Journal of Otology, 2022
Background: The activation of the medial olivocochlear reflex reduces the cochlear gain, which is manifested perceptually as decreased auditory sensitivity.
Fernanda Anza Miranda, Enzo Aguilar-Vidal   +1 more
doaj   +1 more source

A Proposal for a Data-Driven Approach to the Influence of Music on Heart Dynamics

Frontiers in Cardiovascular Medicine, 2021
Electrocardiographic signals (ECG) and heart rate viability measurements (HRV) provide information in a range of specialist fields, extending to musical perception.
Ennio Idrobo-Ávila, Humberto Loaiza-Correa, Flavio Muñoz-Bolaños, Leon van Noorden, Rubiel Vargas-Cañas   +4 more
doaj   +1 more source