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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 ...
Programa para análisis de flujo de potencia para la calculadora HP-28S
(Polytechnic University of Puerto Rico, 1991-06)
El programa de flujo de potencia fue desarrollado para la calculadora HP-28S y se basa en el método Newton-Raphson. La versión en esta calculadora se concibe como una valiosa ayuda para el estudiante de sistemas
de potencia.
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 experimento para una máquina de embotellado
(Polytechnic University of Puerto Rico, 1995-12)
Experimental design for a bottling proccess machine
In this article we present an experimental design for a bottling process machine of the dry products plant of a local pharmaceutical industry. Our goal is to identify ...
Modelaje matemático y simulación computadorizada del enfriamiento natural de una vivienda en Puerto Rico
(Polytechnic University of Puerto Rico, 1994-06)
The planning of social interest housing developed by the government of Puerto Rico during the sixties basically optimizes the economic aspects. Although, unfortunately, they shun a very important aspect in the intrinsic ...
Banco de pruebas de relés
(Polytechnic University of Puerto Rico, 1993-12)
Description of a test bench that simulates the operation of the protection system of a transmission center. The test bench developed integrates several electromagnetic devices, known as relays, that work together to protect ...
Theory of operation of today CD systems
(Polytechnic University of Puerto Rico, 1993-12)
In this article we examine the main events that lead to the invention of the compact disc or CD, as we all call it. We consider the most important components of the playback section of the CD such as the pick-up circuit, ...
Diseño de un microprocesador
(Polytechnic University of Puerto Rico, 1994-06)
We show the design of a microprocessor that includes the set of instructions, the addressing modes and the cycle of fetch-decode-execute an instruction. We chose the registers used in the design from the board and then ...
Design of an automatically guided mechanical manipulator
(Polytechnic University of Puerto Rico, 1995-12)
An automatically guided mechanical manipulator is an electromechanical « device used for transportation and material handling. A combination of k electronics control and mechanics (mechatronics) design and analysis is » ...
Pull system implementation in a welding area
(Polytechnic University of Puerto Rico, 1996-06)
Our project took place in a welding area which supplies two production lines of a large company in Puerto Rico. The company is divided in four areas: fabrication, welding, assembly and molding. Management wants to implement ...