Examinando por Materia "temperature"
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Ítem Cerámicos de alta resistencia inspirados en nuestra naturaleza(Universidad EAFIT, 2020-12-01) Martinez Guerrero, Christian Alexander; Martinez-Guerrero, Christian Alexander; Gil Duran, S.; Arola, D.; Ossa, Edgar; Materiales de IngenieríaÍtem The Effect of Temperature on the Spread of the Coronavirus in the U.S.(Universidad EAFIT, 2020-04-11) Breton, TheodoreI investigate whether the cross-sectional data on cumulative (symptomatic) cases of coronavirus in the 48 contiguous states of the U.S. at the end of March 2020 provide any evidence that the rate of transmission of the virus declines at higher temperatures. Average temperatures in March varied from 30 to 71 degrees Fahrenheit in the 48 states. Controlling for other relevant factors, including population density and the availability of testing, I find no evidence that a higher average temperature in a state reduced the incidence of cumulative cases/capita of the virus in the state. These results provide no indication that seasonal increases in temperature will cause the coronavirus epidemic to disappear in the summer.Ítem Esto pasa cuando imitamos a la naturaleza(2020-12-01) Martinez Guerrero, Christian Alexander; Christian Alexander Martinez-Guerrero; Gil Duran, S; Arola, D; Ossa, E.A; Vicerrectoría de Descubrimiento y CreaciónÍtem ¡Esto pasa cuando nos inspiramos en la naturaleza!(2020-12-01) Martinez Guerrero, Christian Alexander; Christian Alexander Martinez-Guerrero; Arola, D; Ossa, E.A; Gil Duran, SÍtem Proposal of a Cooling Device with Peltier Cells Powered by an Independent Photovoltaic System: A Case Study(Universidad EAFIT, 2021-05-12) Solis Pino, Andres Felipe; Ramirez Palechor, Ginna Andrea; Alape Realpe, Luis Fernando; Corporación Universitaria ComfacaucaCurrently, multiple studies are trying to establish alternatives that will allow for the reduction of the consequences of energy consumption and greenhouse gases. In this sense, photovoltaic solar energy has become a feasible option to alleviate this problem, also, new technologies have been sought to reduce the energy consumption of cooling devices, because they consume too much energy and use harmful refrigerants to accomplish their task. For this reason, Peltier cells can be a viable option to lower the temperature in closed spaces without generating waste or harmful emissions. In the present work, we propose to combine these initiatives in a unified system to take advantage of both technologies, implementing a cooling system that uses the thermoelectric effect to reduce the temperature inside, which is fed by an autonomous photovoltaic system using maximum power point tracking algorithms to improve its performance. The results show that the device is capable of lowering the temperature inside, allowing the conservation of elements at low and constant temperatures, without the disadvantages of common refrigerators. Finally, it is concluded that this system is a plausible possibility to replace cooling technologies where access to electrical energy is limited.