Artículos: Recent submissions
Now showing items 1321-1340 of 4223
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Entropy mapping approach for functional reentry detection in atrial fibrillation: An in-silico study
Catheter ablation of critical electrical propagation sites is a promising tool for reducing the recurrence of atrial fibrillation (AF). The spatial identification of the arrhythmogenic mechanisms sustaining AF requires the ... -
Effect of the concentration ratio on energetic and exergetic performance of concentrating solar collectors with integrated transparent insulation materials
The effect of the concentration ratio on the performance of parabolic trough and central receiver collectors with integrated transparent insulation materials (TIMs) is analyzed in this work. A model based on optical, energy, ... -
Emotional states detection approaches based on physiological signals for healthcare applications: A review
Mood disorders, anxiety, depression, and stress affect people’s quality of life and increase the vulnerability to diseases and infections. Depression, e.g., can carry undesirable consequences such as death. Hence, emotional ... -
Electronic properties and optical response of triangular and hexagonal MoS2 quantum dots. A DFT approach
The energy states of triangular and hexagonal MoS2 quantum dots are studies with the use of density functional theory, varying the dot size. The system edges are assumed to be passivated with sulfur-hydrogen atoms. In each ... -
Effect of Heat Treatment on Tribological Properties of Ni-B Coatings on Low Carbon Steel: Wear Maps and Wear Mechanisms
Among the alternatives for using low-carbon steel in parts with heavy wear, as gears and bearing surfaces, Ni-B electroless coatings deposited on these steels are considered due to their wear resistance. Wear maps, elaborated ... -
Dry-co-grinding of doped TiO2 with nitrogen, silicon or selenium for enhanced photocatalytic activity under UV/visible and visible light irradiation for environmental applications
TiO2 doped with nitrogen (N), silicon (Si), or selenium (Se) (N-TiO2, Si-TiO2, and Se-TiO2) were obtained by the integrated sol-gel and solvothermal method with short time of crystallization and low temperature. The ... -
Does a life cycle assessment remain valid after 20 years? Scenario analysis with a bus stop study
Purpose: The goal of this article is to find out if an old Life Cycle Assessment (LCA) study remains valid or not after a period of time. To answer this we re-perform an LCA of a bus stop in the city of Barcelona that was ... -
Discourses regarding construction of youth identity in Latin America. Political, educational and cultural phenomenon. A look from colombia. [Discursos en torno a la construcción de identidad juvenil en America Latina. Fenómeno político, educativo y cultural. Una mirada desde Colombia.]
This article results from the research project entitled: Analysis of the impact of socio-communicative glocal discourses on the construction of the reference around the concept of Latin American youth identity. Case of ... -
CO, CO 2 , and H 2 Interactions with (0001) and (001) Tungsten Carbide Surfaces: Importance of Carbon and Metal Sites
In this work, a systematic study on the adsorption of atomic and molecular hydrogen and carbon oxides on cubic (001) and hexagonal (0001) WC surfaces by periodical density functional theory is reported. Calculations have ... -
Cellular concrete review: New trends for application in construction
In the last years the use of cellular concretes has been extended, due to the rise in the ratio strength/weight reached, as well as the development of new cementitious raw materials, foaming agents and fillers for specific ... -
Commissioning the truth and memory in society [Comisionar la verdad y la memoria en la sociedad]
Objective/context: This article analyses the political function assumed by a truth commission, as an entity situated at the center of disputes regarding memory typical of societies dealing with a violent past. The text ... -
Body-skin-language. Syphilis in the field of enunciation of clinical dermatology [Cuerpo-piel-lenguaje. La sífilis en el campo de enunciación de la dermatología clínica]
This text poses a question regarding the body as a space of medical representation, linked to the disease’s deforming effects on it in the second half of the 19thcentury, as an archive in a Colombian-Spanish documentary ... -
Assessment of segmentation methods for pore detection in cellular concrete images
In the last years the use of cellular concretes has been extended due to the rise in the ratio strength/weight reached. Porosity is a property that must be taken into account because it is associated directly to the ... -
Applying gamification elements to build teams for software development
Nowadays computer games are applied beyond entertainment. Gamification, the application of game elements in non-game environments supports behavioural studies in different disciplines including software engineering, the ... -
A Kinetic Modelling of the Growth Rate of Lolium perenne for Phytotoxicity Bioassays
Plant growth rate represents one of the main factors in the vegetal-model bioassays design and the development of phytoremediation technologies. Lolium perenne is a promising plant to heavy metals monitoring and phytoremediation, ... -
Advances in attractive ellipsoid method for robust control design
Our contribution is devoted to a further theoretic development of the attractive ellipsoid method (AEM). We consider dynamic models given by nonlinear ordinary differential equations in the presence of bounded disturbances. ... -
A systematic review of the literature on corporate bankruptcy for the period 2012-2017 [Una revisión sistemática de la literatura en torno a la quiebra empresarial para el período 2012- 2017]
This paper develops a general framework establishing the minimum guidelines required for the study of corporate bankruptcy, framed in five elements such as the definition, sample, cost of error, statistical techniques and ... -
Analysis of floodplain dynamics in the Atrato River Colombia using SAR interferometry
Floodplain water flows have large volumetric flowrates and high complexity in space and time that are difficult to understand using water level gauges. We here analyze the spatial and temporal fluctuations of surface water ... -
A hub-based university innovation model
This article uses a conceptual approach to propose an innovation model for regional universities. It demonstrates that the traditional university encounters several obstacles that hinder its full integration into the ... -
Analysis of the scale-dependence of the hydraulic conductivity in complex fractured media
Fractured geological media are complex systems where hydrodynamic parameters are highly variable as result of their structure. Indeed, measured parameters depend on the scale and the implemented methodologies. with high ...