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Fate and transport of enterococci bacteria at Rincón Public Beach
(2021-05-14)
Bacteria contamination is a frequent problem in Puerto Rico's beaches. In-situ surveys are currently the only way to determine episodes of fecal pollution. These tests require 24 hours of incubation and cannot provide ...
Comparative Analysis of Complex Transportation Project Case Studies
(2020-06-01)
Complex transportation projects are challenged daily by uncertainties and external factors that are typically not considered by the traditional project management approach. In 2013, the Federal Highway Administration (FHWA) ...
Groundwater resource development to supply the water demand of the Engineering Complex at the University of Puerto Rico at Mayagüez
(2021-05-14)
All the water that is used in the University of Puerto Rico at Mayagüez (UPRM) is supplied by the
Puerto Rico Aqueduct and Sewer Authority (PRASA), but its infrastructure has proven to be
fragile and results in economic ...
Exploring the determinants of students' travel behavior in the face of parking scarcity problems
(2020-05-28)
Finding a parking spot at the University of Puerto Rico at Mayagüez (UPRM) can be a daily struggle. Currently, the Campus mismatch between parking demand and supply has resulted in a substantial number of people, mostly ...
Response of ISO containers to a variety of dynamic loadings at different standoffs: Comparison of field experimentation and finite element modeling
(2021-05-14)
Intermodal cargo containers, such as the International Organization for Standardization (ISO)
containers, are use in a daily basis for transportation of merchandize. The development of the
intermodal cargo containers ...
Seismic soil pressures on rigid walls subjected to pulse-like earthquake ground motions
(2021-05-11)
Pulse-like earthquakes are believed to impose larger structural demands on structures due to the sudden release of seismic energy. This can cause concern in areas that are near fault due to the possibility of structures ...
Synthesis and characterization of metal-doped titanium dioxide and treatability studies for photo-degrading atrazine and methylene blue under spectrum of UV and visible light
(2021-05-14)
TiO2 nanoparticles were synthesized and doped with metals ions such as iron (Fe +3) and tungsten (W+4) to achieve photocatalytic properties under the visible light spectrum then TiO2 nanocomposite where immobilized within ...
CFD numerical simulations to elucidate the wind speedup generated by the geomorphic complexity of Puerto Rico
(2020-12-11)
FEMA commissioned a joint effort study after Hurricane Maria (2017) for Puerto Rico to
develop Special Wind Region Maps, as specified in ASCE 7-16 wind guidelines. The venture was led by the Strategic Alliance for Risk ...
Determinación de períodos fundamentales del suelo mediante vibración ambiental en las comunidades de Jardines del Caribe y La Playa, Puerto Rico
(2020-05-28)
Due to the seismic risk of Puerto Rico, this project was conducted to estimate the fundamental periods of vibration of the soil deposits in the areas of Jardines del Caribe and La Playa, respectively communities of Mayagüez ...
Mechanical, durability and financial analysis of concrete mixtures with nanosilica, silica fume and fly ash
(2020-05-14)
This study encompasses the analysis of mechanical properties, durability and cost-effectiveness of concrete mixtures with nanosilica particles, silica fume and fly ash utilized as admixtures. The cost of materials for the ...