Browsing Revista Politechnê by Title

Now showing items 248-267 of 302

    • Según me lo contaron 

      Bird, Rosa Julia (Polytechnic University of Puerto Rico, 2016)
      Margarita tenía ojos de cedro; unos ojos de sangre cuando miraba hacia adentro y se veía el corazón y las tripas. Margarita tenía cabellos largos, color de astilla; unas hebras lisas que se le encrespaban cuando le daba ...

    • Seismic Study of Geosynthetic-Reinforced Slopes 

      Santiago Cordero, Aileen M. (Universidad Politécnica de Puerto Rico, 1998-12)
      This report was done as part of an internship program sponsored by the NSF to learn and get involved in an extensive research at the University of Washington. The research is related to issues associated to the design ...

    • Semisolid Metal Processing 

      Alexandrou, Andreas N.; Burgos, Gilmer R.; Entov, Vladimir M. (Universidad Politécnica de Puerto Rico, 1999-12)
      Processing of metal alloys in their mushy state represent a new trend in metal processing. The process produces components with low porosity, high crack resistance, fine microstructure, and better mechanical properties ...

    • Sensitivity Analysis for Regional Hydrological Modeling Using HEC-HMS Simulation Program and Geographic Information System in Tropical Watersheds 

      Torres Soto, Alberto J. (Polytechnic University of Puerto Rico, 2015)

    • Seven Steps to Implement an Affective and Integrated SOP and Training System 

      Bonilla Cathelineaud, Vilma (Polytechnic University of Puerto Rico, 2010)
      Regulated industries such as Pharmaceutical, Biotechnology and Medical Devices, among others, require the use of Standard Operating Procedures (SOPs), to perform in the work place, consistently. For several years the Food ...

    • Simulación de estaciones de trabajo ergonómicamente diseñadas para inspeccionar lentes de contacto 

      Soto Santiago, Jannette; Díaz Suarez, Roberto (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 ...

    • Simulación de fallas en sistemas de potencia usando componentes simétricos y el programa PSPICE 

      García Correa, Horacio A.; Rivera Velázquez, Vicente (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. ...

    • Simulación digital para verificación de diseño y sus aplicaciones en el desarrollo de pruebas automatizadas 

      Figueroa, Rafael A.; Jordán, Rodolfo E. (Polytechnic University of Puerto Rico, 1992-06)
      This paper presents the digital simulator as the tool for the computerized analysis of digital logic circuits. Among the topics discussed in the study are the behaviour of digital circuits, the development of vectors to ...

    • Simulation of the Antenna Pattern of Arbitrarily Oriented Very Large Phase/Time-Delay Scanned Antenna Arrays with Systematic and Random Errors 

      Ortiz, Carlos R. (Universidad Politécnica de Puerto Rico, 1999-12)
      A computer simulation to determine the field pattern of arbitrarily oriented, very large phase/time delay scanned antennas was developed. The simulation takes into account errors present in antenna arrays. These are ...

    • Sistema de Administración de Propiedades 

      Santiago Rivera, Ángel D. (Polytechnic University of Puerto Rico, 2019)
      Como empleado de una compañía dedicada a administrar y reposeer propiedades, surge la inquietud de crear un sistema con una base de datos que almacene la cartera de propiedades con las diferentes situaciones que caracterizan ...

    • Sistemas de imágenes utilizando discos ópticos 

      Lozada Sorcia, Louis M.; Santiago, Enrique Luis (Polytechnic University of Puerto Rico, 1991-12)
      This paper defines the concept of imaging technology, the particular hardware needed to support it and the use of the optical disk as the medium for the storage of electronic images. In order to have a better understanding of ...

    • Sistemas de Información Geográfica y Técnicas de Interpolación Espacial para la Modelación de Valores Residenciales 

      Matos Flores, Raúl (Polytechnic University of Puerto Rico, 2006)
      El presente escrito muestra los resultados de una metodología que, utilizando técnicas de interpolación espacial, procedió a modelar los valores de ventas residenciales en la periferia de la alienación del Tren Urbano para ...

    • Sizing a solar cell array for a solar powered lawnmower machine 

      Veras, Eduardo J. (Polytechnic University of Puerto Rico, 1996-12)
      This project focuses on the sizing and control of a photovoltaic (PV) collector of a solar lawnmower prototype to satisfy the geographical orientation of Puerto Rico and its available sunlight. The design, analysis and ...

    • Smart Antenna Performance Simulation in Multipath Propagation Environment 

      Ortiz, Jorge A. (Polytechnic University of Puerto Rico, 2008)
      This paper presents the effect of multipath propagation on the performance of smart antenna. The influence of the correlation between the source multipath components on the uplink beam pattern shape, as well as the resulting ...

    • Sobre “espanglish” y purismos 

      Santos, José E. (Polytechnic University of Puerto Rico, 2016)
      El mal llamado purismo insular goza de una inmerecida membresía en el salón de la infamia. Se le ve bajo el prisma de la actitud complaciente y seudo-neutral de la lingüística contemporánea. No existe tal cosa como ...

    • Sobrepoblados 

      Rodiz, Pedro (Polytechnic University of Puerto Rico, 2022)
      Obra del dramaturgo, director teatral, guionista, actor, profesor de teatro Pedro Rodiz.

    • Strain gauge and micrometer instrumentation of a truss structure 

      Amado González, Vanessa; Ortiz Marti, Luis A.; Batista Soto, Julian; Peña Rosado, Edwin; Tito Izquierdo, Jorge A.; Collazos Ordóñez, Omaira M. (Polytechnic University of Puerto Rico, 1997-12)
      This project was performed as part of the Structural Analysis courses in order to compare theoretical results of the response of simple structures with the experimental results obtained at the Structures Engineering ...

    • Strategy for the Reduction of False Rejects in the Visual Inspection of Injectable Drug Products 

      Rivera Torres, Edgardo R. (Universidad Politécnica de Puerto Rico, 2024)
      A hundred percent visual inspection is performed as part of the manufacturing process of injectable drug products as a regulatory requirement to detect and remove units with defects to protect the patients. The rejection ...

    • The Structure of a Composite Galaxy Model 

      Talavera Balbuena, Claudia E. (Polytechnic University of Puerto Rico, 2016)
      The algorithms and numerical methods describes the way of implementing a composite galaxy –bulge area, disk, and galaxy halowhich is modeled as a full three-dimensional entity, using spherical and disk models as ...

    • Study of the density of states in amorphous Silicon-Hydrogen using the semiconductor/electrolyte system 

      Muñoz, William (Polytechnic University of Puerto Rico, 1996-12)
      Localized states in amorphous Silicon-Hydrogen are studied by pulsed measurements on the a-Si:H/electrolyte (S/E) system. The S/E interface is essentially blocking to current flow. As a result, surface space-charge layers, ...