Browsing by Issue Date
Now showing items 321-340 of 3488
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A social software for mobile learning
(2012-07-04)The traditional teaching methods of the Learning Management Systems (or LMS) are rigid in nature and impose limitations on the teaching process. By having a closed pattern, these tools end up hurting the student, for ... -
The Balance Score Card for the Design and Validation Instrumens to Measure the Academic Teachers´s Achievement and Performance
(2012-07-04)The evaluation of faculty work is critical for the university accreditation. Moreover, particularly sensitive to this related tendency of faculty work evaluation; it is necessary to go beyond the knowledge factor and ... -
Un Enfoque de Lógica Borrosa para el Modelado de los Flujos de Pasajeros y el Tiempo de Parada
(2012-07-04)La estimación del flujo de pasajeros y el tiempo de parada en la estación constituyen importante tareas para la planificación de los sistemas de masivos de pasajeros. Sin embargo, los métodos clásicos son difíciles de ... -
La robótica educativa, una herramienta para la enseñanza-aprendizaje de las ciencias y las tecnologías
(2012-07-04)En este artículo se presenta y analiza la robótica educativa como una herramienta de apoyo al proceso de enseñanza-aprendizaje, a nivel de pre-media, orientada principalmente a asignaturas complejas como la matemática, ... -
Vehículo Submarino de 6 Grados de Libertad para Inspección Interna de Tuberías
(2012-07-04)La inspección internas de túneles de hidroeléctricas, tuberías de presión, cascos de barco y lugares muy cerrados dentro de estructuras sumergidas requieren la utilización de un vehículo submarino operado remotamente. Sin ... -
Diccionario de Datos: Un enfoque semántico, de seguridad y usabilidad
(2012-07-04)Este artículo trata sobre los diccionarios de datos enfocados en su utilidad semántica, léxica sobre las bases de datos y los esquemas relacionales; la manera en cómo debe ser estructurados y diseñados para su integración ... -
Forming Teams for Teaching Programming based on Static Code Analysis
(2012-07-04)The use of team for teaching programming can be effective in the classroom because it helps students to generate and acquire new knowledge in less time, but these groups to be formed without taking into account some respects, ... -
Utilizacion de ontologias de ingenieria del software para la evaluacion de la calidad en entornos virtuales de aprendizaje
(2012-07-04)La modalidad virtual contribuye a la formación de profesionales con calificaciones múltiples, poniendo especial énfasis en el trabajo en equipo y en la capacidad de aprender a aprender, además de estimular al ciudadano ... -
A Fuzzy Logic Approach To Modelling The Passengers’ Flow And Dwelling Time
(2012-07-04)The passengers’ flow and station dwell time estimation are important tasks for mass transit planning. However, classical methods are difficult to apply into some practical achievements. This paper presents a new approach ... -
Cramér-Rao Bound Study of Multiple Scattering Effects in Target Localization
(2012-07-04)The target position information contained in scattering data is explored in the context of the scalar Helmholtz operator for the basic two-point scatterer system by means of the statistical estimation framework of the ... -
El Recalentamiento Eléctrico por Termoconducción. Una Perspectiva Fisicoquímica del Calentamiento Eléctrico
(2012-07-04)El presente artículo recopila los comportamientos reales observados luego de cinco años de investigación, experimentación y modelado, con conductores eléctricos que fallan por alta conducción térmica, con el fin de rendir ... -
Analysis of Short-term Steel Corrosion Products Formed in Tropical Marine Environments of Panama
(2012-07-05)The phases and compositions of the corrosion products of a mild steel (A-36) and two weathering steels (A-588 and COR 420) formed after 3 months exposure to the tropical marine atmosphere of Panama were examined using FTIR ... -
An experimental study of steel fiber-reinforced high-strength concrete slender columns under cyclic loading
(2012-08-10)Structural engineers usually limit the use of HSC columns to seismic active zones because of their britle behavior in comparison with NSC, even though it presents advantages both in terms of mechanics and durability. A ... -
Estimates of biomass and fixed carbon at a rainforest in Panama
(2012-10)This paper presents an estimation of the quantity of carbon fixed in trees in a one hectare (ha) plot at the Cerro Pelado-Gamboa Hydrology Tropical Observatory, which is located in the province of Colon, Panama. The ... -
Estudio teórico de capacidad de deformación de soportes esbeltos de hormigón armado con fibras de acero sometidos a esfuerzos combinados de axil y carga lateral
(2012-10)El estudio de la ductilidad es muy importante en elementos estructurales sometidos a esfuerzos combinados, ya que nos determina la capacidad de resistencia y a la deformación. Actualmente son escasos los ensayos experimentales ... -
Comportamiento de soportes esbeltos de hormigón armado con fibras de acero sometidos a esfuerzos combinados de axil y carga lateral cíclica
(2012-10)La ductilidad es un indicador de la capacidad de deformación en estructuras sometidas a esfuerzos combinados de axil y carga lateral cíclica. El elemento estructural sometido a estos esfuerzos debe ser capaz de absorber y ... -
Estimates of Biomass and Fixed Carbon at a Rainforest in Panama
(2012-10-03)This paper presents an estimation of the quantity of carbon fixed in trees in a one hectare (ha) plot at the Cerro Pelado-Gamboa Hydrology Tropical Observatory, which is located in the province of Colon, Panama. The ... -
Numerical analysis of the straightening process of thin plate structures by elastic FEM based on the inherent strain method
(2012-12)Welding distortion is practically an expected feature in shipbuilding, with a few exceptions; when thick plates are used, for example. Nowadays, the trend is to use thinner plates in order to reduce weight, aiming to reduce ... -
The balance store card for the design and validation instruments to measure the academic teacher's achievement and performance
(2012-12)The evaluation of faculty work is critical for the university accreditation. Moreover, particularly sensitive to this related tendency of faculty work evaluation; it is necessary to go beyond the knowledge factor and ... -
Development of a neural network model to predict distortion during the metal forming process by line heating
(2013-01)In order to achieve automation of the plate forming process by line heating, it is necessary to know in advance the deformation to be obtained under specific heating conditions. Currently, different methods exist to predict ...