Now showing items 109-128 of 276

    • The generalized cross-product of vectors 

      Deschapelles, Bernardo (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 ...
    • Global Supplier Quality Performance Monitoring Scorecard 

      Gendes Alonso, Sabrina (Polytechnic University of Puerto Rico, 2022)
      Monitoring the performance of suppliers in any industry ensures the continuos improvement of the relationship between a supplier-customer through the identification of gaps between the current performance and the customer ...
    • Golden section search solution of single variable optimization problems using MathCad 

      Veras, Eduardo J. (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 ...
    • Granulation Area Capacity Increase 

      Torres Colón, Luis Daniel (Polytechnic University of Puerto Rico, 2022)
      Manufacturing pharmaceuticals are continuously looking for waste reduction to improve their processes and increase the manufacturing output. Granulation area capacity increase was evaluated for a solid dosage pharmaceutical ...
    • Group technology and cellular manufacturing systems: an introduction 

      Cedeño, Angel A. (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 

      Laham Bauzó, Salim (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 

      Sarmiento, Jorge (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 ...
    • Heladas Eternidades: Del Caimán nace el Vampiro 

      Santos, José E. (Polytechnic University of Puerto Rico, 2014)
      Ensayo del Profesor y Crítico Literario José E. Santos sobre el poeta, narrador, antólogo, ensayista, pintor y Profesor Jan Martínez.
    • High Density Plasma Nitriding on Stainless Steel Alloys at PUPR-MC Plasma Machine 

      Rivera, Ramón; Colmenares, Franklyn; Lleonart Dávila, Giovanni; Leal, David; Gaudier, Jorge; González Lizardo, Ángel E.; Leal Quirós, Edbertho; Burgos Saldaña, Gilmer (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 ...
    • Hogar inteligente sustentado por una red 5G 

      Rodríguez Torres, Noel (Polytechnic University of Puerto Rico, 2022)
      En estos tiempos donde nuestros estilos de vida, el trabajo y la familia nos requieren tanto tiempo, la automatización de tareas rutinarias cumple un rol importante para facilitarnos nuestro diario vivir. Es por este ...
    • Homenaje a una estudiante anónima 

      Rosado Almedina, Maria Gisela (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 ...
    • Homenajes 

      Martínez, Jan (Polytechnic University of Puerto Rico, 2016)
      La Facultad en pleno de la Universidad Politécnica de Puerto Rico desea a través de este medio rendir un sencillo, pero merecido homenaje al Dr. Miguel Riestra quien ha sido una pieza fundamental en múltiples proyectos ...
    • How to Reduce the Confirmation Period of Possible Critical Defects Detected During the Quality Assurance Acceptance Sampling Plan for Inspected Drug Product 

      Cruz Guzmán, Gretchen M. (Polytechnic University of Puerto Rico, 2022)
      An Acceptance Sampling Plan, or ASP, is a Quality attributes assessment performed during the manual or automated inspection of Drug Products. After inspection, the inspected product then becomes an Inspected Drug Product, ...
    • A Hybrid Deterministic/Genetic Test Generator to Improve Fault Effectiveness and Reduce CPU Time Run 

      Cruz, Alfredo (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 

      Ulloa, Ernesto (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 ...
    • Identifying damage in reciprocating air compressors 

      González, Cándido; Monroig, Julio H. (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 ...
    • The Implementation of New Technology: Ethical Principles and Ethical Reasoning Elements 

      Malaver, Roger (Polytechnic University of Puerto Rico, 1999-06)
      We explored valuable ethical issues on the New Technology Implementation (NTI). A successful approach to assess and manage health-related issues associated with the installation of new technology (specially those related ...
    • Implementation of the stiffness method within MathCad numeric computation environment 

      Pacheco Crosetti, Gustavo E. (Polytechnic University of Puerto Rico, 1996-12)
      This article presents a case study of a simple planar framed structure to show an original implementation of the stiffness method of structural analysis within MathCad numeric computation environment. This approach was ...
    • Improving Performance on Information and Technology Systems and Services at a Life Sciences Manufacturing Plant for the Graduate Programs at Polytechnic University of Puerto Rico 

      Delgado Velázquez, Arlene (Polytechnic University of Puerto Rico, 2010)
      The establishment of a continuous improvement program and culture at a Life Sciences company has giving them great business results. By using Lean ,Six Sigma and Team involvement methodologies areas like Information ...
    • In Memoriam: Paisaje, Monumentos y Persistencia de la Memoria 

      Benero, Ricardo J. (Polytechnic University of Puerto Rico, 2014)
      Ensayo del Profesor Ricardo Benero que nos brinda un significativo estudio que recoge el devenir e importancia del arte y las construcciones funerarias en sus manifestaciones monumentales y como documento de la memoria colectiva.