Resumen: Hoy en día los dispositivos de enfriamiento tienen un papel muy importante en la vida diaria debido a varios factores que los hacen útiles y necesarios, por citar algunos de ellos podemos decir que se utilizan para conservar alimentos y medicinas, por otra pa

Abstract: Nowadays the cooling devices have a very important role in the daily life due to various factors that make them useful and necessary, to mention some of them we can say that they are used to conserve foods and medicines, on the other hand for our interest, in

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Resumen: Se presenta la tasa de degradación óptica de películas delgadas semiconductoras de sulfuro de cobre expuestas al medio ambiente. Los análisis de composición química realizados con EDAX (Energy Dispersive Analysis X-Ray) mostraron un incremento de oxígeno (3.6

Abstract: Optical degradation rate of CuS semiconductor thin films exposed to atmosphere was presented. The EDAX showed an increment of oxygen contents (3.6% to 9.5% w/w) in thin films exposed to atmosphere in comparison with the stored in plastic bags which lead to fa

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Abstract: It presents the structural and electrical characterization of rectangular and triangular barriers based on AlxGa1- xAs/GaAs heterostructures grown in a metallic-arsenic-based-MOCVD system. The gallium and aluminum precursors were the organmetallic compounds t

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Abstract: nO2 thin films were synthesized on glass substrate by chemical bath deposition technique within the pores of polyvinyl alcohol (PVA) at room temperature. The chemical bath for the deposition of MnO2 is made up of solution of MnCl4, NH4Cl, NH3, and PVA solutio

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Resumen: La miniaturización de sistemas micro mecánicos o MEMS ya es una realidad de nuestros días. En la medicina moderna se encuentra una amplia gama de opciones de estudio y diagnóstico a través de la detección y medición. En el área médica, específicamente en el c

Abstract: The miniaturization of Micro-Mechanics Systems or MEMS is a reality now days. In modern medicine, it is possible to find a wide spectrum of options for study and diagnostic through detection and measurement. In the medical area, specifically in the field of u

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