Browsing Theses & Dissertations by Title
Now showing items 960-979 of 3469
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Dynamic lateral response of single piles considering soil inertia contribution
(2007-05)The most widely used model to perform the analysis of piles under lateral loads consists in modeling the pile as a series of beam elements and representing the soil as a group of unconnected, concentrated springs perpendicular ... -
Dynamic performance evaluation of a spatially-distributed network
(2011)The operational environment of non-profit organizations is affected significantly by changes in population demographics such as births, migration, community wealth, etc. Our interest is in demonstrating how the performance ... -
Dynamic properties and seismic response of the cable structures and towers of the Arecibo Observatory
(2006-05)This investigation was requested by the staff of the Arecibo Observatory to determine whether the towers and cables that support the suspended platform are capable of resisting a maximum-credible earthquake in the elastic ... -
Dynamic transportation and humanitarian logistics model: a decision support tool to forecast and prioritize critical supplies distribution during emergency relief operations
(2013)The optimal mobilization of materials, personnel and relief supplies to a disaster site could be the difference between life and death for the affected population. The purpose of this dissertation is to develop a system ... -
Dynamics and rheology of Janus drops
(2015)This dissertation sheds some light on the dynamics and rheological properties of compound multiphase drops in the creeping motion limit of the fluid phases from a fundamental standpoint. A compound multiphase drop can ... -
Dynamics of chromophoric dissolved organic matter, cdom, in coastal tropical waters
(2010)Chromophoric Dissolved Organic Matter (CDOM ag355) distribution in surface waters of Mayagüez Bay, Puerto Rico can be related to riverine allochtonous sources. Inshore CDOM ag355 had six times (0.55 m-1), and offshore ... -
Dynamics of parts on narrow tracks using the multibody theory
(2004)The vibratory feeder is used to feed parts in manufacturing processes. This work applied the multibody theory to describe the dynamic behavior of rectangular and cylindrical parts. The analysis studied the following cases: ... -
Dynamics of seawater carbonate chemistry in a tropical coastal coral reef environment
(2013)Diverse forcing such as biogenic and abiogenic calcification, carbonate sediment dissolution or precipitation, and climate-related processes modulate seawater carbonate equilibrium and Ca2+ and Mg2+ proportions in near ... -
Dynamics of the bottlenose dolphin, Tursiops truncatus, off the west and south coast of Puerto Rico: population, distribution, threats, and genetic structure
(2019-05-14)To understand the dynamics of a species, information on the status, abundance, and relationship of contiguous populations is essential, along with information on its geographic range, habitat analysis, and needs. Although ... -
Earthquake induced damage estimation for steel buildings in Puerto Rico
(2006)This work presents a method for estimating the expected damage caused by an earthquake on steel buildings in Puerto Rico. Since Puerto Rico is located between a series of tectonic faults, buildings could suffer the damages ... -
Earthquake loss estimation in Puerto Rico from historical and potential earthquake scenarios
(2016)Puerto Rico is located in the active seismic zone of the Eastern Caribbean where earthquakes are a potential threat for the island. In the past, several damaging earthquakes have affected Puerto Rico (1787, 1867, and 1918). ... -
Ecological aspects of sponges in mesophotic coral ecosystems
(2010)Mesophotic Coral Ecosystems (MCE) represent a new realm of unexplored habitats that range from 30-100m deep. Given the worldwide coral reef decline, MCE research has created great expectations because of their potential ... -
Ecological education: Pedagogy of awareness, transformation and action through children’s literature in an ESL classroom
(2015-05)This research investigation explores possible ways of formally introducing ecological education to sixth grade Puerto Rican learners through children and young adult literature. The purpose of this project is to explore ... -
Ecological studies of the tree fern Alsophila amintae D.S.Conant (CYATHEACEAE) in the cloud forest of Puerto Rico
(2017)Alsophila amintae D.S.Conant (Cyatheaceae) is an endangered tree fern endemic to the central mountains of Puerto Rico. It was previously known from three populations in Monte Guilarte, Monte Jayuya and Cerro Rosa. The ... -
Ecología del Todus mexicanus (Coraciiformes-Todidae) en el Bosque de Susúa, Sabana Grande, Puerto Rico
(2006)The objetive of this investigation was to increase the knowledge of one of the endemic birds of Puerto Rico: the Puerto Rican Tody (Todus mexicanus). I studied the abundance and the foraging behavior of this bird and the ... -
Ecología poblacional y reproductiva de Cordia bellonis Urb. (Boraginaceae), una especie en peligro
(2006)Cordia bellonis Urb. is a rare and endemic shrub located in the Maricao and Río Abajo Commonwealth Forests. No individuals were registered in the Susúa forest. The species grows on serpentine and limestone soils, at edges ... -
Ecology of the Asian clam, Corbicula fluminea (Müller), and its impact on the benthic invertebrates in Guajataca and La Plata Reservoirs, Puerto Rico.
(2012)Corbicula fluminea (Müller, 1774) is one of the most invasive freshwater bivalves. It is nonnative to America, where it has impacted the benthic macroinvertebrates and phytoplankton communities of many lakes. The first ... -
Ecology of the encrusting sponge Desmapsamma anchorata
(2006-09)Sponges are a prominent component of the invertebrate fauna of Caribbean reefs. This study describes various aspects of the ecology of the demosponge Desmapsamma anchorata, Carter 1882, off southwest Puerto Rico. The ... -
Economic costs of compliance with Basel III: the case of Puerto Rico
(2015)Financial Regulations arising from the Basel III Regulatory Framework, in response to the Global Financial Crisis, will impose important transition costs upon the economies of the countries who implement them. In this ... -
Economic evaluation of feeder automation in a distribution system
(2011)The absence of economic justification is one of the leading barriers for the integration of feeder automation systems into distribution networks. These systems may require substantial capital investments from utilities, ...