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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 ... -
Coeficientes de utilización de disyuntores ("breaker duty")
(Polytechnic University of Puerto Rico, 1993-06)The breaker duty calculation is very important to the electric industry cause it shows which breakers overload under fault conditions. This way e utility determine the the extra capacity to add to those breakers or Aether ... -
Desarrollo de un estudio de viabilidad econoniica para la desición de proyectos de ampliación en el servicio de habitaciones del Hotel Cielo Mar
(Polytechnic University of Puerto Rico, 1993-06)The western area of the island has experienced an increse in the tourism activity during the past two fiscal years. Evidence of this increase has been recorded at the Hotel Cielo Mar-in Aguadilla, as well as other hotels ... -
Theory of constraints will really improve your competitiveness
(Polytechnic University of Puerto Rico, 1993-06)The Theory of Constraints (TOC) is a new management philosophy created by Eliyahu M. Goldratt to help an enterprise reach its goal. To accomplish this objective a company must change the paradigm of costs and follow two ... -
Diseño de un sistema de producción de discos para pararrayos mediante la simulación computadorizada del proceso
(Polytechnic University of Puerto Rico, 1993-06)This project is based upon proposed changes to the design of facilities and the acquisition of new equipment for a company. Our goal is to optimize the use of the equipment and the human and economic resources using the ... -
Análisis comparativo de sistema eléctricos
(Polytechnic University of Puerto Rico, 1993-06)In this paper we study different alternatives to supply electric power to die die company Eureka Marine Products. The energy alternatives considered in the study are the wind energy, solar energy and the electric power ... -
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, ... -
The generalized cross-product of vectors
(Polytechnic University of Puerto Rico, 1993-12)The meaning of the scalar product of two vectors can be easily extended to a space of n dimensions. Similar generalization, related to the cross-product of vectors with more than three components, has not been formulated ... -
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. -
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 ... -
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 ... -
Diseño de experimentos para una de las líneas de llenado y empaque en una industria farmacéutica local
(Polytechnic University of Puerto Rico, 1994-06)A local pharmaceutical company has to reduce the number of complaints from customers who receive its products in broken or cracked glass bottles. In this paper we discuss an experiment to establish parameters to guarantee ... -
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 ... -
Diseño de experimentos con una máquina de revestimiento de tabletas en una industria farmacéutica
(Polytechnic University of Puerto Rico, 1994-06)A subtle but meaningful kind of loss is the acceptance of subjective beliefs within an organization. Profits are never a result of mysticism. Subjectivity without a precise base is a way of lying and, although it might not ... -
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 ... -
Método analítico para determinar concesiones y análisis de rendimiento
(Polytechnic University of Puerto Rico, 1994-06)We developed an analytical method to determine allowances and performance ratings based on human physiology. The theory about the human capacity to do work is analogous to the graph of steel fatigue used for structural ... -
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 ... -
Hadamard matrices, strongly regular graphs, and Galois fields
(Polytechnic University of Puerto Rico, 1994-06)In this paper the author uses the concept of circulant matrices and the superposition principle to find, from the adjacency matrices of three regular graphs of order 8 and degree 2, tire adjacency matrix, M, of a strongly ... -
El Politécnico (Año 1, Número 1, Noviembre 1994)
(Polytechnic University of Puerto Rico, 1994-11)Periódico El Politécnico (Año 1, Número 1, Noviembre 1994) órgano oficial de la Universidad Politécnica de Puerto Rico, se publica con una periodicidad trimestral.