Auflistung Revista Politechnê nach Erscheinungsdatum
Anzeige der Dokumente 41-60 von 285
-
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 ... -
Design of an experiment for injection blow molding
(Polytechnic University of Puerto Rico, 1994-12)This research was requested by the quality control engineer of a company manufacturing plastics products such as bottles and caps. These products are manufactured with polyethylene and polipropylene resin, using two molding ... -
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 ... -
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 ... -
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. ... -
Identifying damage in reciprocating air compressors
(Polytechnic University of Puerto Rico, 1994-12)We used a parametric analysis for a reciprocating air compressor to determine its working conditions. We also connected measuring devises which allowed us to determine the real performance of our compressor. From this point ... -
Retículos cúbicos, ortomodulares, conexos, de altura 3 y configuraciones proyectivas ortomodulares conexas
(Polytechnic University of Puerto Rico, 1994-12)Cubic orthomodular connected lattices of height 3 and orthomodular connected projective configurations The construction of a connected orthomodular projective configuration, from a cubic, connected, orthomodular lattice ... -
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 ... -
Cálculo de los coeficientes de la ecuación de pérdidas para un sistema de generación de potencia
(Polytechnic University of Puerto Rico, 1995-06)Calculation of the loss equation coefficients (Bmn) for a power generation system Engineering has been very successful in the analysis of fuel costs, performance and efficiency of boilers, turbines, and generators. However, ... -
Simulación de fallas en sistemas de potencia usando componentes simétricos y el programa PSPICE
(Polytechnic University of Puerto Rico, 1995-06)Fault simulation in power systems using symetric components and the computer program PSPICE This article shows how to use the computer program PSPICE to analyze faults in power systems by the symmetrical components method. ... -
Programa de computadora para diseñar mallas puestas a tierra en las subestaciones de potencia
(Polytechnic University of Puerto Rico, 1995-06)Computer program to design grounding grids for power subtations As of today, the Puerto Rico Electric Power Authority (PREP A) does not have a modem computer program based on the latest technology to design and analyze ... -
The development of my capstone design project
(Polytechnic University of Puerto Rico, 1995-06)This article is the result of my Capstone Design Project, which I started during the summer of 1994. The main purpose of this course is to expose us to the ever changing and challenging world of the engineering design work. ... -
Programa para construir la matriz representativa de un sistema de potencia eléctrica
(Polytechnic University of Puerto Rico, 1995-06)Computer program to build and modify an electrical power system matrix A power systems engineer has to build and modify the electrical power system matrix every time elements of the system are added, deleted or modified. ...