ListarRevista Politechnê por tema "Polytechnic University of Puerto Rico--Faculty--Research"
Mostrando ítems 41-60 de 124
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Estudio de los Aspectos Ergonómicos en Laboratorios de Control de Calidad en Industrias Farmacéuticas
(Polytechnic University of Puerto Rico, 2010)El objetivo de esta investigación es conocer, cuan efectivo son los diseños ergonómicos en laboratorios de control de calidad de las industrias farmacéuticas. En esta investigación se realizó una evaluación de los diseños ... -
Evaluación Ergonómica de las Sub-Tareas Montaje y Desmontaje de un Filtro de Proceso
(Polytechnic University of Puerto Rico, 2010)Estudio ergonómico aplicando la ecuación de levantamiento de NIOSH y Análisis biomecánico a las sub tareas montaje y desmontaje de un filtro de proceso en las etapas iniclal, intermedia y final, considerando las percentilas ... -
Experiencia con el proceso de mejoramiento de la calidad en una empresa manufacturera
(Polytechnic University of Puerto Rico, 1997-06)The successful implementation of a continuous quality improvement process in a manufacturing enterprise requires that certain vital conditions are present. It is also essential that those conditions be fully developed ... -
Experimental Design of a High Vacuum System for PUPR-MC Plasma Machine
(Polytechnic University of Puerto Rico, 2008)In vacuum technology it is customary to divide a large pressure region (as of today, covering 16 orders of magnitude) into single, smaller regions. These divisions are somewhat arbitrary. Thus, the chemists frequently refer ... -
Fallas de alta impedancia en los sistemas de distribución eléctrica
(Polytechnic University of Puerto Rico, 1992-06)Most of the time, a fault in an electrical power system presents a much higher current than the current that flows in the system during. normal conditions. This fault current is harmful for the components of the system ... -
Faster Sample Delivery to the Microbiology Laboratory using Lean Six Sigma
(Polytechnic University of Puerto Rico, 2010)This article presents the Lean Six Sigma tools used to identify the factors that impact the timely arrival of environmental water samples to a Microbiology Laboratory in a biotechnology industry. The inherent variations ... -
Fauna y Eros en los Sonetos sinfónicos y en Alturas de America de Luis Lloréns Torres
(Polytechnic University of Puerto Rico, 2005)The Puerto Rican criollo poet par excellence, Luis Lloréns Torres, complements its poetry genius with erotic lyrics seldomly studied by critics. Acknowledging previous critics on this theme, we analyze his particular ... -
Fingerprints Recognition Using a Neural Network
(Polytechnic University of Puerto Rico, 1999-06)A fingerprint recognition approach, based on a backpropagation algorithm using a neural network, is presented. The purpose of our work is to show the relevance of the fingerprint method characterization by using the ... -
Formulación de un modelo lagrangiano de partículas para simular la difusión de contaminantes atmosféricos. I
(Polytechnic University of Puerto Rico, 1998-06)One of the most relevant aspects the atmosphere is its capacity for transporting substances, heat or momentum vertically among different levels. This property is of fundamental importance in the troposphere because otherwise ... -
Función para la entrada de datos en programas escritos utilizando el compilador QuickBasic
(Polytechnic University of Puerto Rico, 1992-06)This document shows a data entry function written in the QUICKBASIC version of the BASIC computer programming language that can be used for the development of engineering application programs. The function uses many of the ... -
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 ... -
Golden section search solution of single variable optimization problems using MathCad
(Polytechnic University of Puerto Rico, 1997-06)The method of solution presented in this article is based on a searching technique known as the Golden Section Rule. This method can be used for solving single-variable optimization problems without constraints, but for ... -
Group technology and cellular manufacturing systems: an introduction
(Polytechnic University of Puerto Rico, 1997-12)Global market competition is changing the nature of the present and future marketplace to a highly dynamic environment. Product variety is high and individual product demands are low. Also, customer's demand for faster ... -
Guía para el Desarrollo de Proyectos de Construcción de la Autoridad de Carreteras y Trasnportación de Puerto Rico
(Polytechnic University of Puerto Rico, 2014)Este artículo presenta los procesos típicos para el desarrollo de proyectos de construcción de la Autoridad de Carreteras y Transportación de Puerto Rico. Se enumeran las acciones que se deben ejecutar secuencialmente ... -
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 ... -
High Density Plasma Nitriding on Stainless Steel Alloys at PUPR-MC Plasma Machine
(Polytechnic University of Puerto Rico, 2008)A novel method of nitriding at high current levels at Polytechnic University of Puerto Rico Mirror Cusp plasma machine (PUPR-MC) has been performed. Nitrogen ions implantation or plasma nitriding increases the hardness at ... -
Historia de la ingeniería eléctrica, un formidable motor propuldor de la presente y futuras civilizaciones
(Universidad Politécnica de Puerto Rico, 1998-12)In this article the reader will find a historic account of the scientific discoveries that provided the foundations of electrical engineering as a profession. The article also presents a list of names of those scientists ... -
Homenaje a una estudiante anónima
(Polytechnic University of Puerto Rico, 1992-06)Han transcurrido dos años del suceso que voy a narrar. Se trata de uno de esos recuerdos que atormentan al maestro durante toda su vida porque forma parte de las experiencias que son ejemplo vivo de cómo piensan algunos ... -
A Hybrid Deterministic/Genetic Test Generator to Improve Fault Effectiveness and Reduce CPU Time Run
(Polytechnic University of Puerto Rico, 2004)This paper focuses on an evolutionary algorithm (EA) approach in the development of effective test vector generation for single and multiple fault detection in VLSI circuits. The genetic operators (selection, crossover, ... -
Hyperbolic, Ultrastatic Wormhole Solution to the Vacuum Effective Gravity Equations in Randall Sundrum Brane World
(Polytechnic University of Puerto Rico, 2005)We provide a traversable wormhole solution to the effective vacuum gravity equations in Randall Sundrum brane world scenario. We argue that graviton effects from the bulk spacetime can stabilize the wormhole"s throat against ...