Anzeige der Dokumente 61-67 von 67

    • 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 ...
    • 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 ...
    • 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
    • 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.
    • 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 ...