Construcción de repositorios institucionales open source con Software Greenstone

Se aborda la construcción de repositorios institucionales open source con Software Greenstone. Se realiza un recorrido teórico y otro modélico desarrollando en él una aplicación práctica. El primer recorrido, que constituye el marco teórico, comprende una descripción, de: la filosofía open access (acceso abierto) y open source (código abierto) para la creación de repositorios institucionales. También abarca en líneas generales las temáticas relacionadas al protocolo OAI, el marco legal en lo que hace a la propiedad intelectual, las licencias y una aproximación a los metadatos. En el mismo recorrido se abordan aspectos teóricos de los repositorios institucionales: acepciones, beneficios, tipos, componentes intervinientes, herramientas open source para la creación de repositorios, descripción de las herramientas y finalmente, la descripción ampliada del Software Greenstone; elegido para el desarrollo modélico del repositorio institucional colocado en un demostrativo digital. El segundo recorrido, correspondiente al desarrollo modélico, incluye por un lado el modelo en sí del repositorio con el Software Greenstone; detallándose aquí uno a uno los componentes que lo conforman. Es el insumo teórico-práctico para el diseño -paso a paso- del repositorio institucional. Por otro lado, se incluye el resultado de la modelización, es decir el repositorio creado, el cual es exportado en entorno web a un soporte digital para su visibilización. El diseño del repositorio, paso a paso, constituye el núcleo sustantivo de aportes de este trabajo de tesina

Seismic modelling and ava analysis of hidrocarbon traps

In this study, forward seismic modelling of four geological models with Hydrocarbon (HC) traps were performed by ray tracing method to produce synthetic seismogram of each model. The idea is to identify the Hydrocarbon Indicators (HCI‟s) such as bright spot, flat spot, dim spot and Bottom Simulating Reflector (BSR) in the synthethic seismogram. The modelling was performed in DISCO/FOCUS 5.0 seismic data processing programme. Strong positive and negative reflection amplitudes and some artifact reflection horizons were observed on produced seismograms due to rapid changes in subsurface velocity and geometry respectively Additionally, Amplitude-versus-angle (AVA) curves of each HCIs was calculated by the Crewes Zoeppritz Explorer programme. AVA curves show that how the reflection coefficients change with the density and the P and S wave velocities of each layer such as oil, gas, gas hydrate or water saturated sediments. Due to AVA curves, an increase in reflection amplitude with incident angle of seismic waves corresponds to an indicator of a hydrocarbon reservoir

A set of canonical problems in sloshing. Part 0: Experimental setup and data processing

In a series of attempts to research and document relevant sloshing type phenomena, a series of experiments have been conducted. The aim of this paper is to describe the setup and data processing of such experiments. A sloshing tank is subjected to angular motion. As a result pressure registers are obtained at several locations, together with the motion data, torque and a collection of image and video information. The experimental rig and the data acquisition systems are described. Useful information for experimental sloshing research practitioners is provided. This information is related to the liquids used in the experiments, the dying techniques, tank building processes, synchronization of acquisition systems, etc. A new procedure for reconstructing experimental data, that takes into account experimental uncertainties, is presented. This procedure is based on a least squares spline approximation of the data. Based on a deterministic approach to the first sloshing wave impact event in a sloshing experiment, an uncertainty analysis procedure of the associated first pressure peak value is described.