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Wide tunable filters using a recirculating delay line with multi-reflections
(05/01/2002)
A ring resonator with multiple reflections as a tunable filter is proposed and analyzed in this paper. A coupler and two identical Bragg gratings are used to implement the internal reflections so an active filter with a ...
Definición y validación de medidas para procesos ETL en almacenes de datos
(01/01/2009)
In data warehousing, ETL (Extract, Transform, and Load) processes are in charge of extracting the data from data sources that will be contained in the data warehouse. Due to their relevance, the quality of these processes ...
Aspectos de Inocuidad en la Industria de Productos Vegetales Frescos Cortados en Panamá
(2006-04-01)
En el estudio se analiza la situación de la industria de productos vegetales frescos cortados en Panamá, específicamente en los aspectos de inocuidad de los productos elaborados y se constata que en el caso específico de ...
A plastic fiber optic liquid level sensor
(06/09/2004)
A system for measuring liquid level in multiple tanks using optical fiber technology has been developed. Oil field service industry or any sector requiring liquid level measurements in inflammable atmospheres can be benefited ...
Towards Simple Interaction in the Classroom: an NFC Approach
(IADIS International Conference e-Learning 2008IADIS International Conference e-Learning 2008, 01/01/2008)
In a given environment, distributing different devices with computing capabilities around us opens up new possibilities. It allows simple and easy interaction between user and computer. In this work we propose an approach ...
Improving the Language Active Learning with Multiagent Systems
(09/23/2009)
Nowadays, there is a growing need for providing novel solutions to facilitate active learning in dependency environments. This paper present a multiagent architecture that incorporates agents specifically designed to provide ...
Modeling Abiotic Processes of Aniline in Water-Saturated Soils
(03/18/2000)
The long-term interactions of aromatic amines with soils are important in defining the fate and transport of these compounds in the environment. Abiotic loss of aniline from the aqueous phase to the soil phase occurs with ...
Sagnac loop in ring resonators for tunable optical filters
(08/01/2005)
General filter architecture using co-and counterpropagation signals are studied. A specific configuration based on a Sagnac loop within a ring resonator is analyzed. Novel tuning, apart from conventional tuning,is achieved ...
Prospección Geofísica Aplicada a la Arqueología – Importancia de los Procesos de Modelización y Simulación Numérica
(2008-06-30)
Los últimos años del siglo veinte se caracterizaron por el desarrollo de grandes proyectos científicos de los cuales conviene mencionar la aparición de medios de cálculo computacionales; estas herramientas permiten ...
Numerical study of inherent deformation produced in thick plates through bending by line heating
(2006-06)
In ship building, line-heating is widely employed as an effective method to form steel plate with complex 3-dimensional carved geometries. However the plate bending by line heating is strongly dependent on skills. To ...