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Estudio de transferencia de calor
(Polytechnic University of Puerto Rico, 1992-12)
This paper presents a heat transfer study using the heat transfer device TDl of the Polytechnic University of Puerto Rico. In our research we determine the following heat transfer parameters for a system, t e ea transfer ...
Programa para verificar la calibracion de un rele de proteccion por impedancia
(Polytechnic University of Puerto Rico, 1992-12)
This article describes the preparation of a testing file to verify the calibration of an impedance protection relay using the Mastertest program. With this work we present an alternative to the ones now used for relay ...
Desarrollo del pensamiento crítico
(Polytechnic University of Puerto Rico, 1992-06)
This article presents the need of every human being to develop the ability
to think critically, free of every prejudice induced by the society. The
elements of the logic of thought are described. As an example to ...
Fallas de alta impedancia en los sistemas de distribución eléctrica
(Polytechnic University of Puerto Rico, 1992-06)
Most of the time, a fault in an electrical power system presents a much higher current than the current that flows in the system during. normal conditions. This fault current is harmful for the components of the system ...
Simulación digital para verificación de diseño y sus aplicaciones en el desarrollo de pruebas automatizadas
(Polytechnic University of Puerto Rico, 1992-06)
This paper presents the digital simulator as the tool for the computerized analysis of digital logic circuits. Among the topics discussed in the study are the behaviour of digital circuits, the development of vectors to ...
Función para la entrada de datos en programas escritos utilizando el compilador QuickBasic
(Polytechnic University of Puerto Rico, 1992-06)
This document shows a data entry function written in the QUICKBASIC version of the BASIC computer programming language that can be used for the development of engineering application programs. The function uses many of the ...
Homenaje a una estudiante anónima
(Polytechnic University of Puerto Rico, 1992-06)
Han transcurrido dos años del suceso que voy a narrar. Se trata de uno de esos recuerdos que atormentan al maestro durante toda su vida porque forma parte de las experiencias que son ejemplo vivo de cómo piensan algunos ...
Diseño de un marcapaso programable con memoria y capacidad de comunicación
(Polytechnic University of Puerto Rico, 1992-12)
A design of a programmable pacemaker unit which integrates microprocessor control, memories and a communication device. This pacemaker uses programming techniques to adjust its operations to the patients' needs, to compile ...
Despacho económico considerando la distribución del margen de reserva en regulación
(Polytechnic University of Puerto Rico, 1992-12)
This paper presents the concept of the regulating reserve margin in an economic dispatch by using the Lagrange method of undetermined multipliers. The regulating reserve margin is the amount of generation that should be ...
Filtros digitales para el procesamiento de imágenes
(Polytechnic University of Puerto Rico, 1992-12)
The purpose of this paper is to design filters capable of extracting the
contours of an image, thus reducing the distortion while processing an image.
In order to attain this goal, we developed a group of computer programs ...