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Now showing items 21-30 of 53
Colapso de un muro de contención construido con mampostería
(Polytechnic University of Puerto Rico, 1997-06)
This study presents the analysis of a masonry retaining wall, typically built in Puerto Rico to stabilize and retain slopes. How safe and well built are these walls?. Have they the adequate resistance to efficiently retain ...
Pérdidas de agua en los sistemas fluviales
(Polytechnic University of Puerto Rico, 1993-12)
In this paper we identify those elements that contribute to the undetermined water losses in the Puerto Rico Water and Sewers Authority. We also provide detailed recommendations to reduce these losses.
Análisis del sistema de protección de IPR Pharmaceuticals, Inc
(Polytechnic University of Puerto Rico, 1994-12)
Analysis of the electrical protection system of IPR Pharmaceuticals
This study is based on the electrical distribution system of a pharmaceutical plant. The purpose of the study is to investigate why the low voltage ...
A utility for Netware: REMOTE
(Polytechnic University of Puerto Rico, 1994-06)
We used the C language code to develop a utility that allows two or more workstations connected to the same physical network running the network operating system Netware to communicate and perform remote operations. The ...
Diseño y desarrollo de un controlador de temperatura para un horno de pruebas
(Polytechnic University of Puerto Rico, 1994-12)
Design and development of a temperature controller for a test oven
As a part of quality control process, the electronics industry must make different tests to electronic components. One of these tests allows us to determine ...
Control por "feedback" y "feedforward" aplicado a un proceso de múltiples entradas
(Polytechnic University of Puerto Rico, 1994-12)
Feedback and feedforward control applied to a multivariable process
In this paper we analyze three control systems for a multivariable chemical process. We also present the design of a feedback control system, a feedforward ...
Programa emulador de entrenador para los microprocesadores INTEL 8080 y 8085 para las calculadoras programables HP-48SX y HP-48GX
(Polytechnic University of Puerto Rico, 1994-12)
Emulator of a trainer for the Intel microprocessor 8080 and 8085 for the programmable calculator HP-48SX and HP-48GX
This article presents the development of a program to emulate the Intel 8080 and 8085 microprocessors. ...
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 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 ...
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 ...