Browsing Theses & Dissertations by Title
Now showing items 2464-2483 of 2526
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Validación del algoritmo hidroestimador en la región de Puerto Rico
(2006)A heavy convective storm that occurred over the eastern part of Puerto Rico was selected to conduct a validation of the Hydro Estimator (HE). HE is a rainfall estimation algorithm which utilizes data from the GOES ... -
Validación del índice de fósforo del Caribe y evaluación de prácticas de manejo de desechos orgánicos en fincas de producción animal de Puerto Rico
(2005)Nutrient losses from agricultural soils are one of the principal causes of surface water quality impairment. A study was conducted in animal operations (dairy cattle and poultry) of Puerto Rico, to quantify nitrogen (TKN), ... -
Validación del modelo de simulación índice de nitrógeno (N-index) del caribe en sistemas de producción de hortalizas en el Valle de Lajas
(2014)Nutrient losses from agricultural fields are one of the principal causes of environmental degradation. Typical nitrogen (N) fertilizer consumption rates in vegetable production systems and horticultural crops, typically ... -
Validación y aceptación de la variedad de habichuela (Phaseolus vulgaris L.) 'Morales' y la variedad de maíz (Sea mays L.) 'Mayorbela"
(2006)A data base with the daily registries of the sale of bean (Phaseolus vulgaris L.) and corn (Zea mays L.) seed was made for the years 2003 and 2004, at the Isabela Substation of the Agricultural Experimental Station of the ... -
Valoracion contingente de un bosque urbano en un segmento de la carretera PR-3108 en Mayagüez Puerto Rico
(2009)This article attempts to calculate the economic value for an urban forest in a segment of a location on a main road in PR-3108 in the municipality of Mayagüez, Puerto Rico. To achieve this objective, a double bound contingent ... -
Valoración de prácticas culturales para el control de la pudrición del cormo, producción a escala de material de propagación libre de enfermedades y estimación de la diversidad genética de apio (arracacia xanthorrhiza bancroft) en Puerto Rico
(2019-07-11)Apio (Arracacia xanthorrhiza Bancroft) is an important crop at the high land region of Puerto Rico, with a unique potential for commercialization and food processing. However, research about integrated plant management of ... -
Value engineering integrated budget change request process
(2014)Project management is an emerging discipline for planning, organizing, managing, and controlling projects. A project is a temporary initiative with unique objectives subject to risks and constraints. Many organizations ... -
Vapor phase transport of explosive related compounds through unsaturated sandy soils
(2008-08)Chemical detection of buried explosives devices through chemical sensing is influenced by factors affecting the transport of chemical components associated with the devices. Explosive-related chemicals (ERCs), such as ... -
A variable damping semiactive device for control of the seismic response of buildings
(2005)This dissertation proposes a new semiactive device, composed of two fixedorifice viscous fluid dampers installed in the form of V whose top ends are attached to the upper floor and their lower ends to a point that can move ... -
A variable dimension gauss-newton method for ill- conditioned parameter estimation with application to a synchronous generator
(2005)This thesis presents a variable dimension Gauss-Newton (VDGN) parameter estimation algorithm that can be used for fault detection, and diagnosis of a synchronous generator. The algorithm is derived as an extension of the ... -
Variación en la dieta del sapo de la caña (Chaunus [Bufo] marinus) en la reserva natural privada el tallonal en Arecibo, Puerto Rico
(2008)The cane toad, Chaunus [Bufo] marinus, introduced in Puerto Rico, is known for having a varied diet and for being an opportunist species, thus its diet reflects regional and seasonal abundance of prey. In order to know ... -
Variación espacial y temporal del fitoplancton en la bahía de Mayagüez, Puerto Rico
(2007)Mayagüez Bay is an area off western Puerto Rico affected by effluents of domestic waste treatment plants and the three major rivers flowing into the region. In either case, anthropogenic factors are seen as contributing ... -
Variación estacional en la disponibilidad de presas de la viuda, Himantopus mexicanus, en las Salinas de Cabo Rojo, Puerto Rico
(2008)The purpose of this study was to determinate the availability of potential preys for the Black‐necked Stilt, Himantopus mexicanus (Aves, Charadriformes, Recurvirostridae), and to document details of its foraging ecology ... -
Variation for Anthracnose (Colletotrichum sublineolum) resistance within the Sorghum [Sorghum bicolor (L.) Moench] germ plasm collection from the Kayes region of Mali, West Africa
(2007)Anthracnose, caused by Colletotrichum sublineolum, is considered one of the most important diseases of sorghum. The pathogen is highly variable; therefore, additional sources of host plant resistance are needed for the ... -
Variation of planktonic community structure along the Orinoco River plume
(2007)The planktonic biomass size structure of tropical and subtropical oceans exerts significant control on the ocean’s atmospheric carbon sequestering potential. Understanding the spatial distribution of such structure in the ... -
Vascular flora of the Guánica dry forest, Puerto Rico
(2009)The systematic review of the Guánica Forest Reserve flora indicates that it consist of 460 accepted species, plus another 258 species that require confirmation. The number of unconfirmed records is greater than that of ... -
A vector sift operator for interest point detection in vector imagery and its application to multispectral and hyperspectral imagery
(2009)This research work presents an algorithm for automated detection of interest points in vector images such as RGB and hyperspectral. Interest points are features of the image that capture information from its neighbors are ... -
Velocidad y diseño geométrico: Factores para identificar curvas potencialmente peligrosas en carreteras rurales de dos carriles en Puerto Rico
(2018-05)Two-lane rural highways network is relevant in the movement of vehicles, freight and socioeconomic development of the cities, towns and municipalities that are served. Furthermore, these types of highways provide access ... -
Verificación de la efectividad del programa de limpieza y desinfección en establecimientos de venta al detalle y delicatessen realizando pruebas microbiológicas y de bioluminiscencia de ATP
(2008)Effectiveness of the cleaning and sanitation procedures was verified in seven supermarkets and five bakeries in Mayagüez, Rincón and Hormigueros towns. Microbiological tests performed included aerobic plate count (APC), ... -
Viabilidad de la independencia de la red en áreas residenciales de puerto rico
(2010)La situación energética es uno de los problemas más dialogados y controversiales a nivel mundial. La gran dependencia de los combustibles fósiles y todas las repercusiones que los mismos traen como consecuencia en nuestra ...