University of Puerto Rico at Mayagüez Institutional Repository
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Publication Restricted Tsunami impacts in Puerto Rico: Tectonic sources, propagation modeling, and run-up sensitivity to surface friction(2026-02-18)Puerto Rico, is exposed to tsunamis, this scenario demands accurate characterization of seismogenic sources, rapid and realistic numerical modeling tools, and efficient response strategies. This thesis addresses the problem through three complementary approaches. The main active geological structures in Puerto Rico and the Virgin Islands are identified and segmented using seismic, geological, geophysical, and geodetic data, with an evaluation of their tsunamigenic potential. An updated tectonic model is presented that incorporates detailed fault geometry and patterns of recent crustal deformation, providing a robust foundation for defining realistic tsunami scenarios. Also, the TsunamiBot is developed as an automated monitoring and response system that integrates real-time seismic detection, source parameter generation using the Okada model, GPU-accelerated simulations with Tsunami-HySEA, and immediate alert dissemination via the Telegram API. The system can execute complete simulations in under three minutes, enhancing response capacity for near-field threats. Finaly, the sensitivity of run-up, inundation extent, and hydrodynamic parameters to variations in surface friction is evaluated using spatially variable Manning’s n maps derived from high-resolution land use data. Tsunami-HySEA simulations are conducted for six coastal regions in western Puerto Rico, and a Random Forest model is applied to quantify the relative importance of friction, slope, and bathymetry in the dynamics of inundation. Results confirm that combining detailed tectonic characterization, a fully automated modeling and alert workflow, and a realistic representation of surface friction significantly improves the accuracy and operational value of tsunami models for Puerto Rico and the Virgin Islands.Person Metadata only Person Metadata only Publication Restricted Economic feasibility study of micro pumped hydro and battery energy storage for the integration of solar photovoltaic energy into the grid(2016)The use of fossil fuels in the production of electric energy has raised some concerns over the last years; their finite nature, cost and environmental impact are the most important issues. This has resulted in the study and development of alternative energy sources that include solar photovoltaic as one of the most common. Integrating the energy produced from this kind of renewable sources represents a challenge due to its variability and intermittency, reason why some of the renewable energy producers are subject to an integration limit or curtailment by the utility. In this thesis we perform an economic feasibility study of micro pumped hydro and batteries for the integration of solar photovoltaic energy into Puerto Rico’s electric grid. To this end, a total of fourteen scenarios have been simulated and analyzed, these scenarios are PV facilities that inject a portion of the energy produced during the day into the electric grid, whereas the energy subject to curtailment is stored and then integrated at night. Some of the parameters that vary from case to case include installed PV capacity, integration limit, cost of the storage technology and selling price of the energy stored. Results show that the net present value for all scenarios simulated is positive, which means they are economically feasible when energy is sold at an escalated price of $0.185/kWh during the day and $0.195/kWh or more during the night. Optimum size for the storage system corresponding to each case is also found. The use of energy storage systems leads to an increase in the penetration of renewable energy into Puerto Rico’s electric grid.Publication Restricted Efectos del ajo morado gigante del mediterráneo y del orégano como antimicrobianos en la dieta de pollos parrilleros: Un estudio sobre su crecimiento(2025-12-18)Disease is an inevitable challenge for any living being. For decades, antibiotics and natural remedies have been used to treat it. In the poultry industry, the use of pharmaceuticals is not always regulated, resulting in improper dosages that foster microbial resistance in animals and humans, as seen with penicillin and ampicillin. This challenge has motivated the search for natural alternatives, including dietary supplements, to improve animal health and reduce antibiotic use. This study analyzed the antimicrobial effects of purple garlic and oregano in the diet of broiler chickens. Oregano (Origanum vulgare) enhances diet palatability, increasing consumption and weight in chickens. Its antimicrobial action helps maintain animal health. Purple garlic (Allium sativum L.) rich in organosulfur compounds such as allicin, it is noted for its antimicrobial properties. Benefits include reduced mortality, flock uniformity, improved cardiovascular function, and decreased issues like lameness. The supplement studied, Zooallium, combines these two natural ingredients from Spain. This approach for this study could revolutionize poultry production by promoting optimal weight gain and reducing reliance on antibiotics.
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