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    • 1D and 2D Hydraulic Modeling to Estimate Bridge Scour: A Case Study 

      García-Santiago, Kettsy (Polytechnic University of Puerto Rico, 2021)
      Scour is the effect of erosion of soil surrounding a bridge foundation due to fast-flowing water. This dynamic phenomenon can be categorized as the most common cause of bridge failures. Therefore, scour depth at piers and ...

    • 1x16 Post Weld Continuity 

      Martínez Adorno, Valerie (Polytechnic University of Puerto Rico, 2021)
      Laser welding is a critical process of medical device used for the manufacturing process of spinal cord stimulation leads that brings different offenders. The highest for 1x16 family is ...

    • 3D Vibration Isolation Systems Modeling for Air Handling Units 

      Aponte Rivera, Alfredo (Polytechnic University of Puerto Rico, 2014)
      Spring isolators systems are commonly used in a variety of ways in today’s construction industry. They are an essential part of the design of many mechanical systems that are in need of absorbing and dissipating unwanted ...

    • 5S Method Implementation in Power Department’s Warehouse of the Tren Urbano of Puerto Rico 

      González Madera, Ismael (Polytechnic University of Puerto Rico, 2013)
      The Tren Urbano of Puerto Rico has a lot of material, equipment and tools to make the maintenance works. Many of them are electrical and there is a Power Department to make them. This department has been having problems ...

    • 5s Techniques to Optimize Classroom Organization 

      Moreno López, Stephanie L. (Polytechnic University of Puerto Rico, 2020)
      This research project was focused in the 5s methodology for the improvement of an elementary classroom. The 5s is defined as a method of five steps that seeks to improve working space, eliminate waste and improve ...

    • Acceptance Testing for Thermoplastic Injection Molds 

      Arias Geraldo, Pavel (Universidad Politécnica de Puerto Rico, 2020)
      The injection molding process is the most important of all plastics processing processes due to its variety of uses and applications. The primary element of an injection molding process is the mold itself. Molds are expensive ...

    • Achieving High Performance Level for Remote Working 

      Reyes Castillo, Eduardo (Polytechnic University of Puerto Rico, 2022)
      After the COVID-19 pandemic many employees were forced to work from home. Most of these employees were showing low performance when working remotely. The low performance was associated with the different distracting factors ...

    • ACI-HERZOG Pretreatment Plant Effluent Surfactant Reduction 

      Cardona Girona, Joshua (Polytechnic University of Puerto Rico, 2021)
      ACI-HERZOG is the firm contracted to maintain and operate the Puerto Rico Tren Urbano system. As part of their duties, they are required to wash down train cars periodically. The water generated from the wash down process ...

    • Adequate Selection of Design Flood Frequencies for the Evaluation of Scour and Scour Countermeasures of Critical Bridges, and their Impact on the Puerto Rico Highway and Transportation Authority’s Bridge Program 

      Torres Ruiz, Carlos G (Polytechnic University of Puerto Rico, 2023)
      Federal regulations require all bridges, over waterways, to be designed for scour resistance and all existing bridges to be evaluated for scour vulnerability. Scour evaluations are typically based on the hydraulic design ...

    • Administración de los materiales y recursos humanos en construcción de viviendas 

      Fernández R., Jorge V. (Universidad Politécnica de Puerto Rico, 2023)
      Este artículo presenta la aplicación de la metodología DMAIC para gestionar un proyecto de instalaciones mecánicas, eléctricas y de plomería (MEP). La metodología DMAIC se basa en la recopilación de datos que nos permita ...

    • Administrative Strategies for Small Woodwork Business: Puertas y Diseños 

      Gómez Rosario, Edna N. (Polytechnic University of Puerto Rico, 2014)
      Puertas y Diseños is a woodwork business that has recently suffered financially from the deficiency of business. This paper presents the study of such woodwork business in order to provide alternatives to improve profitability. ...

    • Adopción y mejora de CRM en el ciclo de ventas de ACTEL SRL: Una plataforma unificada para la gestión y simplificación de interacciones 

      Taveras Vargas, Héctor Ricardo (Universidad Politécnica de Puerto Rico, 2023)
      Este proyecto aborda los desafíos de eficiencia operativa de Actel SRL, una empresa tecnológica multinacional. Se propuso reducir en un 30% las interacciones del personal de ventas con plataformas comerciales mediante ...

    • Aero Repairs Documentation Cycle Time Reduction By Lean Application 

      Negrón Rivera, David A. (Polytechnic University of Puerto Rico, 2014)
      In our daily life and world, with a diversity of industries and services, from health to manufacturing, all kind of products; many of them care apply Lean concepts or tools to perform important improvements to their ...

    • Aircraft Wing Spanwise Air-Load Distribution using MATLAB 

      Holguino Borda, Jonathan (Polytechnic University of Puerto Rico, 2014)
      Aircraft design is a complex task that involves the interaction between aerodynamics, propulsion, flight mechanics and structures. In particular, the structural design tasks involve the consideration of a significant ...

    • Airfoil Design Using Blade Element Momentum Theory 

      Lobeto Sanfeliz, Rodrigo (Polytechnic University of Puerto Rico, 2015)
      A wind turbine is a device designed to extract kinetic energy from the wind and convert it to mechanical energy, which in turn can be equivalent to electric power. On this work we will focus on the aerodynamics of wind ...

    • Algorithm for User-friendly Password Policy 

      Hernández Liang, Jorge (Polytechnic University of Puerto Rico, 2017)
      Password based security has become prevalent as the de facto measure against intrusion. Computer systems rarely focus on usability, and little research has been done to change the current, near universal method of ...

    • Alternate Raw Material Supplier Validation 

      Valerín Díaz, Melissa (Polytechnic University of Puerto Rico, 2019)
      This article discusses the Process Validation of Over the Counter Pharmaceutical Product using alternate supplier of raw material. The primary ibuprofen drug substance supplier for GSK Ibuprofen family products informed ...

    • Alternativas para el Uso de Cenizas Volantes en Mezclas de Hormigón 

      Espiña Sánchez, Leonardo (Polytechnic University of Puerto Rico, 2015)
      Estudios demuestran que las cenizas volantes de carbón se pueden utilizar como uno de los componentes para la fabricación de estructuras de hormigón. Este proyecto pretende corroborar si las cenizas volantes de carbón ...

    • Analysis & Evaluation of Costa Linda Condominium Applying New Codes for to Determine Retrofit Requirements for Stability 

      Jordan Marrero, Jorge M. (Polytechnic University of Puerto Rico, 2017)
      This study evaluate the capacity of a 10-story existing building designed in 1972 to determine its capacity to resist new loads according with present codes. A structural model was developed using a modern engineering ...

    • Analysis and Application of Maxwell's Equation for Induction Heating 

      Vázquez Ruiz, Eduardo (Polytechnic University of Puerto Rico, 2013)
      This article involves the development of the Maxwell equations considering a induction heating system. It is analyzed by computer program "Ansys Maxwell," to observe the development of the magnetic field. The system ...