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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 ...
Configuraciones proyectivas ortomodulares y retículos cúbicos
(Polytechnic University of Puerto Rico, 1995-12)
Orthomodular projective configurations and cubic lattices
The author shows the construction of a cubic, connected, orthomodular attice of height 3, from a connected, orthomodular, projective configuration and gives the ...
Diseño computadorizado de la carga térmica para el acondicionamiento de aire en Puerto Rico (AIRPAK 123 TM)
(Polytechnic University of Puerto Rico, 1993-12)
A digital program to compute the industrial air conditioned load was designed. It took us over 3,000 hours to obtain a reliable product which excels all air conditioned programming standards known to this moment. The program ...
Compendio sobre diseño de plantas de tratamiento de aguas negras
(Polytechnic University of Puerto Rico, 1993-06)
This article presents the essential considerations for designing wastewater treatment plants. It also introduces a computer program to design wastewater treatment plants. The author used Basic to develop this program, which ...
Simulación de estaciones de trabajo ergonómicamente diseñadas para inspeccionar lentes de contacto
(Polytechnic University of Puerto Rico, 1994-06)
In this project we describe the ergonomic design of workstations for the inspection of contact lenses. MANNEQUIN, a simulation program, was used for the evaluation and proper design. The main objective of 111s project is ...
Use of genetic algorithms in experimental design optimization and thermal property estimation
(Polytechnic University of Puerto Rico, 1997-06)
The goal of this paper is both to introduce the fields of experimental design optimization and thermal property estimation and to present Genetic Algorithm (GA) optimization method to the faculty of PUPR. This research ...
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 ...