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Ponencia
Least-perimeter partitions of the disk
(Real Sociedad Matemática Española, 2004)
In this work we study the isoperimetric problem of partitioning a planar disk into n regions of prescribed areas using the least-possible perimeter. We obtain the regularity conditions that must be satisfied by the ...
Ponencia
Constraint Databases Technology for Polynomial Models Diagnosis
(2004)
Model-based Diagnosis allows the identification of the parts which fail in a system. The models are based on the knowledge of the system to diagnose, and they can be represented by constraints associated to the components. ...
Artículo
Tutte uniqueness of locally grid graphs
(Departamento de Matemáticas CINVESTAV, 2004)
A graph is said to be locally grid if the structure around each of its vertices is a 3 × 3 grid. As a follow up of the research initiated in [4] and [3] we prove that most locally grid graphs are uniquely determined by ...
Ponencia
A System for the Generation and Detection of Electrical Disturbances
(A Scientific and Technical Company (ACTA Press), 2004-06)
Power Quality is defined as the study of the quality of electric power lines. The detection and classification of the different disturbances which cause power quality problems is a difficult task which requires a high level ...
Artículo
Predicted and measured bottomside F-region electron density and variability of the D1 parameter under quiet and disturbed conditions over Europe
(Elsevier, 2004)
Modelling and forecasting of ionospheric parameters is very useful for different radio communication purposes. As long as variations in the ionosphere form regular patterns, the empirical International Reference Ionosphere ...
Ponencia
On Synthetic AER Generation
(IEEE, 2004-05)
In this paper several software methods for generating synthetic AER streams from images stored in a computer's memory are proposed and evaluated. Evaluation criteria cover execution time, distribution error and how they ...
Ponencia
Towards a tool for ontology engineering
(IEEE Computer Society, 2004)
A tool based on a spatial representation of provisional ontologies is designed. The tool allows the cleming of Knowledge Bases, aa well to induce new concepts in early steps of the building of an ontology.
Ponencia
An Integrated Methodology for the Rapid Transit Network Design
(Springer, 2004)
The Rapid Transit System Network Design Problem consists of two intertwined location problems: the determination of alignments and that of the stations. The underlying space, a network or a region of the plane, mainly ...
Ponencia
Modelos de Evaluación y Mejora de Procesos: Análisis Comparativo
(CEUR Workshop Proceedings (CEUR-WS.org), 2004)
Desde los albores de la disciplina de la ingeniería del software, queda patente la dificultad para que los artefactos generados alcancen un nivel de calidad óptimo dentro de unos límites de tiempo y coste. Dada la ...
Artículo
Validity of the Boltzmann equation to describe low-density granular systems
(American Physical Society, 2004)
The departure of a granular gas in the instable region of parameters from the initial homogeneous cooling state is studied. Results from molecular dynamics and from direct Monte Carlo simulation of the Boltzmann equation ...