El proyecto actual expone el diseño y la implementación de un prototipo de estación meteorológica remota, para el Observatorio Astronómico de Quito (O.A.Q.), con la finalidad de obtener información meteorológica del medio ambiente. De esta manera, esta dependencia de la…

Several surveys have indicated that many data warehouses fail to meet business objectives or are outright failures. One reason for this is that requirement engineering is typically overlooked in real projects. This paper addresses data warehouse design from a business…

El presente artículo describe un sistema de adquisición de datos para un medidor de deformación. Se presenta el análisis del diseño de la circuitería y la programación, los resultados obtenidos y finalmente algunas conclusiones.

This volume has an interesting variety of articles, which at first glance, may not seem to have much in common. However, taking a deeper look at the contents of the texts, several common nexus emerge, above all the feeling that…

AbstractVirtual Worlds (VWs) like Second Life provide a multiuser 3-D environment that may be utilized for either classroom-based or autonomous language learning. While Second Life is one of the most popular VWs at the current time (especially if differentiated from…

This paper describes an efficient implementation of multiple-target multiple-view tracking in video-surveillance sequences. It takes advantage of the capabilities of multiple core Central Processing Units (CPUs) and of graphical processing units under the Compute Unifie Device Arquitecture (CUDA) framework. The…

The impact on temperature of the urban growth in central Mexico from 1993 to 2009 and the sensitivity of forecast to change in land cover are studied using high resolution numerical simulations. The mesoscale atmospheric Weather Research and Forecasting model…

This paper presents an evolution of a simulation environment where situations in which a DDB should maintain data integrity are modeled and implemented. These situations include failures taking place during transactions, and the focus is mainly on the utilization and…

El autor utiliza una encuesta reciente para evaluar la plausibilidad de tres metáforas en competencia sobre Norteamérica: las de comunidad, mosaico o fortaleza. En tanto exista apoyo para las tres, la del mosaico de sociedades nacionales separadas que coexisten dentro…

Teacher education programs are an important alternative to raise standards in the teaching of English as a Foreign Language (EFL). However, there are few studies that have explored the roles of teacher educators in this setting. Three main research questions…