Communities in PRCR
Select a community to browse its collections.
- Colecciones de la Albizu University
- Colecciones digitales de Atenas College
- Colecciones de los Centros Sor Isolina Ferré
- Materiales utilizados para la certificación.
Recent Submissions
GUIA PARA ESCRIBIR UN ENSAYO
(2026-08-19) UNIVERSIDAD DE SAN JUAN
Evaluating Productivity Reinforced Cast in Place Concrete Construction Project in Puerto Rico: From Case Study to Framework
(Polytechnic University of Puerto Rico, 2026) Grau De León, Carmelo; González Miranda, Carlos J.
This research project focuses on the evaluation of the production of reinforced Cast in Place (CIP) Concrete building in a project located in the southern region of Puerto Rico. The projects analyzed consist of several similar buildings constructed within identical site limits, safety requirements, and federal specifications. While the construction processes were nearly identical, the two buildings studied were built by different workforces and managed under different leadership. This documentation serves as a benchmark for small construction firms in Puerto Rico. By comparing self-performed work against subcontracted specialized labor, firms can better decide whether to build internal capacity or leverage external expertise to balance between cost efficiency and schedule performance.
Application of Sustainable and Innovative FPV to Optimizes Reservoir Designs, Generate Power & Reduce Evaporation Water Losses
(Polytechnic University of Puerto Rico, 2026) Colón López, Jorge E.; Villalta Calderón, Christian A.
This project evaluates the feasibility of integrating a floating photovoltaic (FPV) system with the proposed Valenciano Reservoir in Juncos, Puerto Rico, to improve both water and energy resilience. The study combines hydrologic analysis for reservoir design with an assessment of FPV technology as a dual-purpose solution for renewable power generation and evaporation reduction. Runoff hydrographs were developed for major design storms, including the 100-year and probable maximum precipitation events, to estimate inflows, reservoir behavior, and operating water levels. These results were then used to assess the available water surface for FPV deployment. The analysis indicates that the reservoir can support a practical FPV installation capable of contributing meaningful energy production while also reducing evaporative losses and improving water-quality conditions through surface shading. The proposed concept demonstrates how water-storage infrastructure can be enhanced with sustainable energy systems to address critical service challenges in Puerto Rico.
Correlation Between Unemployment Rates and Socioeconomic Factors in the Municipalities of Puerto Rico
(Polytechnic University of Puerto Rico, 2026) Arroyo Rivera, Dennis O.; Torres Batista, Nelliud D.
This study examines the relationship between municipal unemployment and three socioeconomic indicators, poverty rate, educational attainment, and broadband subscription, across Puerto Rico's 78 municipalities from 2019 through 2024. A custom .NET data pipeline ingests data from the Bureau of Labor Statistics Local Area Unemployment Statistics and the Census American Community Survey 5-Year Estimates, constructs a balanced municipality-year panel of 468 observations, and applies Pearson correlation, Spearman rank correlation, and Ordinary Least Squares multiple regression. The poverty rate emerges as the dominant correlate of municipal unemployment, with positive and highly significant coefficients in every annual cross-section and in the pooled model. Educational attainment shows a substantial bivariate correlation but loses joint significance when collinear with poverty. The broadband coefficient increases monotonically over the study window and becomes significant in the pooled specification. Findings support geographically targeted policy investments in the southern and southwestern municipalities with the weakest socioeconomic profiles and the highest unemployment rates.
Development of a Smart Monitoring System for Bottle Breakage Detection in Production Lines
(Polytechnic University of Puerto Rico, 2026) Rivera Torres, Hirbert R.; Torres Batista, Nelliud D.
This project presents the development of a smart monitoring system for bottle breakage in production lines. The system aims to improve operational efficiency by analyzing production data and detecting abnormal breakage patterns. The proposed solution integrates data analytics and statistical methods to monitor breakage rates, generate alerts, and support maintenance decisions. Additionally, the system incorporates location-based thresholds to provide flexible and scalable monitoring across different production areas. By transforming raw production data into actionable insights, the system enables real-time monitoring and enhances decision-making processes in manufacturing environments. This work is aligned with Industry 4.0 principles, promoting the use of intelligent and data-driven systems to optimize industrial operations.