Now showing items 1-20 of 59

    • Desarrollo Agrícola Auto-Sustentable 

      Carabarín Rivera, Mario; De La Texera Colón, Natalia; Díaz Negrón, Jorge; Meléndez Pérez, Vianca; Ortíz Marrero, Pedro (Universidad Politécnica de Puerto Rico, 2015)
      El interés en el deterioro económico del país, impulsó este proyecto a contribuir al desarrollo de Puerto Rico en el ámbito agropecuario. La visión es desarrollar un sistema agrícola sustentable mediante la generación de ...
    • American Sign Language Recognition using Electromyographic Signals via Myo Armband 

      Ramos González, Héctor A.; Vega, Anthony (Polytechnic University of Puerto Rico, 2018)
      Human and computer interaction has become an important tool in the 21 st century One of the most promising technologies for human/computer interaction is speech recognition ( which is a system composed of microphones, ...
    • Renewable Energy Lab for Wind & Solar Power System Analysis 

      Calder Acosta, William Rene; Rodríguez, Andrés (Polytechnic University of Puerto Rico, 2018)
      Renewable energy resources used to produce electric energy, significantly lower CO₂ emissions by substituting non-renewable resource based power generators. Our investigation hopes to support the use of these renewable ...
    • Data Analysis: Disasters, Possible Leverage for Cybercrime 

      Torres Torres, Isaac L. (Polytechnic University of Puerto Rico, 2018)
      This investigation explored the topic of cybercrime and its relation to disaster events of natural or man-made origin within the United States from the years 2001 to 2016. By analyzing available public data from both ...
    • The Evaluation of the National Operational Excellence Index impact over the Private Sector Sustainability in Puerto Rico 

      Desueza Cabreja, Eddie (Polytechnic University of Puerto Rico, 2018)
      During the past decade, the World Forum Competitive Index (WFCI) from the Island has dropped from 36 (2008) to 32 (2015). This drop is being aligned with the loss of resources from federal tax laws and high utilities/ ...
    • The Continuous Improvement Practices in the Puerto Rican Service Industry Formed Through Mixed Methods 

      Figueroa Rodríguez, Gonzalo (Polytechnic University of Puerto Rico, 2018)
    • Use of Plastic as a Replacement of Fine Aggregates in Concrete Admixtures 

      Meléndez Santana, Tanayshalí (Polytechnic University Of Puerto Rico, 2019)
      Although current legislation established that 35% of plastic waste must be recycled on Puerto Rico (PR), actual figures are far below this target (ADS, 2017). Plastic materials have a great impact on the environment since ...
    • Glow Discharge Plasma Sterilization of Prokaryotic Microorganism Through Electrostatic Plasma 

      Morales Carvajal, Paola M.; Borromé, Daniel (Polytechnic University of Puerto Rico, 2019-08-19)
      Sterilization/disinfection of target bacteria – Bacillus Subtilis – is investigated using plasma sterilization process which involves both Dielectric Barrier Discharge Plasma (DBD) and Glow Discharge Plasma. The purpose ...
    • Alternatives for Processing Plastics with Recycle Codes from 3 to 7 

      Cuevas Colón, Bianka J. (Polytechnic University of Puerto Rico, 2019-08-19)
      Solid waste management represents a challenge for Puerto Rico. According to the Department of Natural and Environmental Resources (2019), more than half of the landfills have a closure order and only type one and two ...
    • The 2017-2018 Evaluation of the National Operational Excellence Index in Puerto Rico 

      Camacho Cruz, Natali A. (Polytechnic University of Puerto Rico, 2019-08-19)
      Puerto Rico has not participated in the evaluation of the World Forum Competitive Index (WFCI) since 2015; consequently, the Puerto Rico Manufacturers Association (PRMA) created an index to measure productivity on a ...
    • Supercapacitor Electrodes Based on Modified Carbon Nitride for Applications in Renewable Energy Storage 

      Lomba, Rocío; Ramírez, Andrea (Polytechnic University of Puerto Rico, 2019-08-19)
      Supercapacitors are rechargeable electrochemical energy storage devices, whose can store much larger amount of electrical energy in the interfaces between electrodes and electrolyte.
    • Going Manual: Preparation for a CyberAttack Among Puerto Rico’s Electrical Grid System Personnel 

      Pacheco, Nuria (Polytechnic University of Puerto Rico, 2019-08-19)
      This research project was intended to assess the ability for Puerto Rico’s power grid administrative authorities to respond to a cyberattack like the one documented in Ukraine in December 2015 The researcher gathered ...
    • Distributed Electric Propulsion 

      Morales, Ángel; Torres Rivera, Aníbal (Polytechnic University of Puerto Rico, 2019-08-19)
      This investigation focused on predicting aerodynamic improvements obtained when air is blown over a wing by six propellers distributed equally along the wing’s span The purpose was to validate a method to implement Distributed ...
    • Carbon Nitride Polymer Nanocomposite Anion Exchange Membranes 

      Graud, Joel; Zambrana, Carla (Polytechnic University of Puerto Rico, 2019-08-19)
      This work proposes the fabrication of novel polymeric membranes to overcome some limitations of the existing AEMs, such as their low OH conductivity and poor chemical stability in KOH
    • Glow Discharge Plasma Sterilization of Prokaryotic Microorganism Through Electrostatic Plasma 

      Cepeda Torres, Omar S.; Martes Martínez, José O. (Polytechnic University of Puerto Rico, 2020-11-13)
      Plasma is the fourth state of the matter In this state the matter has enough energy to delocalize the subparticles of the atoms that make up the material At the subatomic level plasma is a mixture of highly energized ...
    • Analysis of Surface Electromyography Signals of the Arm in Adults 

      Colón, José E. (Polytechnic University of Puerto Rico, 2020-11-13)
      In human history, medicine has always sought to improve the quality of life of patients with disabilities by designing what is now known as either an assistive device or prosthesis For a person who has an amputated arm, ...
    • Vulnerability of Bridges to Natural Events 

      León Malavé, Patricia (Polytechnic University of Puerto Rico, 2020-11-13)
      This project utilized the HAZUS program and ArcGIS to perform vulnerability assessments on the bridges in Puerto Rico After conducting earthquake scenarios, the most probable bridge to experience failure or distress was ...
    • Nickel Doped Carbon Nitride for Applications in Electrochemical Energy Systems 

      Acosta, José; Burgos, Ivonne; De La Luz, Natalie (Polytechnic University of Puerto Rico, 2020-11-13)
      Alkaline fuel cells and supercapacitors have attracted considerable attention over the last decades, mainly because these systems offer the possibility to produce and store energy in a sustainable manner Since the current ...
    • Development of a Hydrokinetic Turbine for Puerto Rico 

      Rivera Rodríguez, Andrea; Diaz Mercado, Estefan L. (Polytechnic University of Puerto Rico, 2020-11-13)
      The island of Puerto Rico has struggled for decades with antiquated power plants that produce excess greenhouse gases In 2017 the delicacy of the overall power system on the island was demonstrated when two Category 5 ...
    • Infrastructure Condition Assessment Using Drones 

      Atra, Imad (Polytechnic University of Puerto Rico, 2020-11-13)
      The condition assessment in pavement is carried out by performing a traditional visual inspection, and by applying the Pavement Condition Index -PCI (Vásquez, 2002). The visual inspection implies to access the roadway and ...