Search
Now showing items 1-10 of 308
Quality changes in fundus images of pseudophakic eyes
(Sociedad Espanola de Optica, 2018)
We consider the changes produced in the quality of eye fundus images of patients before and after cataract surgery with intraocular lens implantation and propose a measure to quantitatively assess those changes. Several ...
Light-induced control of the spin distribution on Cu–dithiolene complexes: A correlated ab initio study
(MDPI AG, 2019)
Metal dithiolene complexes—M(dmit)2—are key building blocks for magnetic, conducting, and optical molecular materials, with singular electronic structures resulting from the mixing of the metal and dmit ligand orbitals. ...
Alternatives for recovering the ecosystem services and resilience of the Salamanca Island Natural Park, Colombia
(2020-05-25)
From a comprehensive diagnosis of the associated basins, islands, and wetlands of the coastal lagoon system of Ciénaga Grande de Santa Marta, Colombia, this work describes feasible options for the recovery of its ecosystem’s ...
Automatic recognition of Colombian car license plates using convolutional neural networks and Chars74k database
(2020)
A methodology for the automatic recognition of Colombian car license plates using convolutional neural networks is proposed. One of the biggest challenges when using onvolutional neural network is the demand for large ...
Analysis of the behavior of daily maximum rainfall within the department of Atlántico, Colombia
(MDPI AG, 2019)
In the Colombian Caribbean region, there are few studies that evaluated the behavior of one of the most commonly used variables in hydrological analyses: the maximum daily rainfall (Pmax-24h). In this study, multiannual ...
Isohyetal maps of daily maximum rainfall for different return periods for the Colombian Caribbean Region
(MDPI AG, 2019)
In Colombia, daily maximum multiannual series are one of the main inputs for design streamflow calculation, which requires performing a rainfall frequency analysis that involves several prior steps: (a) requesting the ...
Estrategias de aprendizaje de estudiantes colombianos de grado y posgrado
(2020-01-01)
Este artículo de investigación expone la importancia de la calidad del aprendizaje docente y analiza las estrategias de aprendizaje en estudiantes de grado y posgrado en educación.Se utilizó un muestreo no probabilístico ...
Narrativas para la emergencia del perdón, la reparación y la reconciliación en víctimas del conflicto armado en Colombia
(2020-01-01)
En los procesos de construcción de paz en Colombia, perdonar, reconciliarse y buscar la reparación de las víctimas se vuelven condiciones necesarias y decisivas. Estudios precedentes indican que cuando no son abordados ...
Nonlinear voltage control for three-phase dc-ac converters in hybrid systems: An application of the pi-pbc method
(2020-05-20)
In this paper, a proportional-integral passivity-based controller (PI-PBC) is proposed to regulate the amplitude and frequency of the three-phase output voltage in a direct-current alternating-current (DC-AC) converter ...
Influence of family and pedagogical communication on school violence
(2020-04-04)
School violence alludes to peer bullying and aggression in school. The field of communication has studied school violence by analyzing the influence of media and interpersonal relationships on aggressive behaviors. This ...
