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Now showing items 31-40 of 79
Instrumentación de la represa Guajataca para el monitoreo sísmico y de deslizamientos
(2013-12)
This report presents the seismic and landslide monitoring system installation process used in the Guajataca earth dam which is located at the boundary of the municipalities of San Sebastian, Quebradillas and Camuy, Puerto ...
Hydraulic design of an overland flow distribution system using lateral weirs
(2014)
Jobos Bay Estuary Research Reserve (JBNERR) is located Salinas in Puerto Rico. Mar Negro wetland is the biggest mangrove forest in the area located at the south boundary of JBNERR. The north side of the Reserve has been ...
Estudio de las órdenes de cambio en proyectos de diseño-construcción en las escuelas del siglo XXI
(2015)
Change orders have a strong potential to become difficult, because of its significant increase in cost and contract duration extension. This research identifies and evaluates the causes of change orders in design build ...
Bus stop consolidation analysis for Puerto Rico's Metropolitan Bus Authority
(2015)
The transit planning in the Metropolitan Area of San Juan in Puerto Rico has a challenging problem because of its low sponsorship. Several reasons for the lack of sponsorship discussed among the community are urban sprawl, ...
Utilización de synchro para mejorar el proceso de planificación de proyectos de construcción
(2015)
The construction project contract documents contain all information, specification, details, quantities and others information. Typically, these documents are prepared and delivered in different files that have to be ...
Evaluation of waste tire crumb rubber and dewatered sludges as adsorbents of heavy metals ions in the Miradero Water Treatment Plant at Mayagüez, Puerto Rico
(2014)
Water pollution by heavy metal species is a major environmental concern, and existing technologies are not always adequate for meeting regulatory limits. Major sources of pollution of aqueous effluents with heavy metal ...
Development of testbed for assessment of enhanced soil vapor extraction of trichloroethylene in unsaturated clayey soil
(2014)
Trichloroethylene (TCE) is a volatile organic compound (VOC) commonly found in many contaminated sites. It is a dense non-aqueous phase liquid (DNAPLs) considered harmful to human health. DNAPL pose particular threats ...
Development of standard procedures for data collection and safety evaluation of circular intersections in Puerto Rico
(2015)
All trips to work, school, home, among other destinations in the Commonwealth of Puerto Rico and all around the World are made by walking, bicycling, public transit or private vehicle. With such a high demand for the use ...
Sistema de monitoreo de tráfico y control de interseccion para el Laboratorio de Ingeniería de Transportación
(2009)
In an urban network of vehicular traffic the intersections happen a higher frequency of congestion issues and accidents. Therefore they are appropriate points to place monitoring systems and control of vehicles and ...
Estudio de la influencia del cemento Pórtland en las propiedades del hormigón con cenizas volantes
(2012)
The durability of concrete is influenced by its porous network. The use of fly ash in concrete mixtures produces additional hydration products, changing its micro-structure. As a concrete admixture, fly ash not only improves ...