The issue of global warming and greenhouse gasses is being addressed in some ways with the production of hybrid vehicles, including the idea of the Colombian Wind Powered Electrical Vehicle (EV), Eolo. This paper will give a brief review over how the engineers behind this pioneering project created the hybrid Electric-Aeolian car. The primary focus was on verifying experimental results with simulations and gaining an in-depth understanding of its performance characteristics. Computational Fluid Dynamics (CFD) software of ANSYS, Fluent was used to model the vehicle traveling along the road at various wind machine configurations. The data gathered from the simulations along with empirical data collected by Eolo Company about their turbine would be used to calculate the aerodynamic coefficient, among other relevant engineering parameters. These values will be compared against the experimental values and evaluated as to any discrepancies and validation of the experimental results.
The influence of carbon and basalt fibres addition on hydraulic lime mortars mechanical properties and durability has been studied. The objective is to evaluate the possible use in restoration of architectural heritage, as an alternative to Portland cement because of the pathological processes that the latter causes. To assess the effect, the obtained results have been compared with two reference mortars: hydraulic lime with no additions and basalt fibres. The amount of fibres to be incorporated is questioned in the first phase. The tests performed show that the incorporation of 1% of fibres (volume) in the mortars, improves their behaviour under bending and compression loads. Additionally, the fibres increase the ductility of the reinforced mortar, almost doubling the effect that causes the addition of basalt fibres. Finally, the durability studies show the increase in ductility caused by the addition of carbon fibres, despite the logic decrease experienced after the ageing tests.
Keywords: Hydraulic lime, mortar, carbon fibre, basalt fibre, ductility, durability
<p>El presente artículo ofrece una reflexión sobre las posturas metodológicas del construccionismo que integran las tecnologías de la información y la comunicación (tic), entre ellas la WebQuest, objetos digitales de aprendizaje,<br />plataformas e-Learning, entre otras, de gran auge actual, frente a nuevos objetivos y desafíos con visión futurista de la sociedad. Para abrir la reflexión sobre el proceso de enseñanza-aprendizaje se propone un caso de estudio que<br />permita evaluar cómo el metabolismo de la sala de clases ha cambiado, principalmente por el uso masivo de las tic que brinda al estudiante una metodología de información distribuida en diferentes y variadas fuentes de información, apartando la metodología centralizada que le prepara mediante el aprender haciendo e investigar reflexionando. En el ambiente universitario, la investigación forma parte del quehacer del estudiante convertido inicialmente en auxiliar de investigación y es ahí donde resulta necesario un análisis de los efectos que causan sus investigaciones en el medio sociocultural y productivo en el cual se desenvuelve.<br />El caso de estudio se desarrolla con los grupos de investigación en telemedicina de la Universidad Militar Nueva Granada de Colombia (Tigum) y en Nuevas Tecnologías de la Universidad Santiago de Chile (gint), que durante 2012 y 2013 han realizado un estudio paralelo exploratorio aplicando la metodología “aprender haciendo-investigar reflexionando”, la cual permite evaluar los resultados de investigación y el desarrollo profesional de sus auxiliares<br />participantes. Así, se ha logrado que el 80% de los auxiliares continúen sus estudios de posgrado en maestrías o doctorados a nivel nacional o internacional.<br />Palabras clave: metodología, aprender, hacer, investigar, reflexionar.</p>
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