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Mostrando ítems 11-20 de 53
Diseño de un flujo continuo utilizando la filosofía de "Justo a tiempo" (Just In Time)
(Polytechnic University of Puerto Rico, 1991-06)
La filosofía de "Justo a tiempo" consiste en diseñar un sistema de manufactura flexible y que promueva mejoras continuas. Entre las ventajas que ofrece este concepto se destacan la eficiencia, la menor cantidad de
material ...
Diseño de un sistema de control para un proceso químico industrial
(Polytechnic University of Puerto Rico, 1991-06)
La idea fundamental de todo sistema de control automático es que el proceso y el controlador formen un lazo cerrado de acción y respuesta. La funcion principal de un sistema de control es el mantener la variable de salida ...
Pruebas al relé de verificación de sincronismo mediante programa de computadoras
(Polytechnic University of Puerto Rico, 1991-06)
La compañia Multi-Amp Corporation ha desarrollado un sistema de
computadoras disenado exclusivamente para realizar pruebas de calibration
de los reles (relays} de proteccion de los sistemas de potencia electrica. ...
Diseño de un controlador de lógica programable
(Polytechnic University of Puerto Rico, 1991-12)
This document shows how to design a programmable logic controller.
This type of design involves several steps, but these steps were grouped in two
subsequent phases. The first phase deals with the design and implementation
of ...
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 ...
Programmable logic controllers: A course in programming and implementation
(Polytechnic University of Puerto Rico, 1992-06)
The purpose of this paper is to provide basic information related to programmable logic controllers (PLCs), their applications and programming. It covers the historical background and an overview of the programmable ...
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 ...
Wave solder process characterization by an experimental design approach
(Polytechnic University of Puerto Rico, 1992-06)
A manufacturing company in Puerto Rico was interested in evaluating the possibility of profiling all printed circuit board assemblies. Experimental design, a method for systematically planning engineering studies, offered ...
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 ...
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 ...