Sanabria Codesal, Esther; Coll Aliaga, Peregrina del Carmen; Ginestar Peiro, Damián; Sánchez Juan, Elena(Universitat Politècnica de València, 2017-06-05)
En este vídeo resolvemos sistemas de ecuaciones diferenciales ordinarias de primer orden con el programa Mathematica, utilizando dos métodos distintos.
[EN] Rainfed agricultural systems in semiarid Mediterranean environments are subject to erratic but often heavy rainfall events. As an agronomic practice, fallow periods can be included even within the existing European ...
Sánchez Juan, Elena; Coll Aliaga, Peregrina del Carmen; Ginestar Peiro, Damián; Sanabria Codesal, Esther(Universitat Politècnica de València, 2017-05-18)
Resolución de ecuaciones diferenciales de primer orden usando los comandos del programa Mathematica. Se hace hincapié en el comando DSolve[] y se obtiene la solución general y soluciones particulares.
Coll Aliaga, Peregrina del Carmen; Ginestar Peiro, Damián; Sanabria Codesal, Esther; Sánchez Juan, Elena(Universitat Politècnica de València, 2017-07-05)
En este objeto de aprendizaje se instruye al alumno en la obtención de soluciones particulares de ecuaciones diferenciales ordinarias de primer orden desde un punto de vista práctico. Se utiliza el programa Mathematica ...
Lambda modes of a nuclear power reactor have interest in reactor physics since they have been used to
develop modal methods and to study BWR reactor instabilities. An h–p-Adaptation finite element method
has been implemented ...
[EN] Different spatial modes can be defined for the neutron diffusion equation such as the k; a and c-modes.
These modes have been successfully used for the analysis of nuclear reactor characteristics. In this work,
these ...
[EN] Nowadays, non-invasive detection of anomalies in nuclear power plants is possible through neutron
noise monitoring. The early detection of such anomalies gives the possibility to take proper actions
before they lead ...
[EN] The time-dependent neutron diffusion equation approximates the neutronic power evolution inside a nuclear reactor core. Applying a Galerkin finite element method for the spatial discretization of these equations leads ...
[EN] A discrete fractional order model is proposed to analyze the behaviour of an epidemic process with indirect transmission. This model is based on a discrete version of the GrunwaldLetnikov fractional derivative operator. ...
[EN] The steady-state simplified spherical harmonics equations (SPNequations) are a higher order approximation to the neutron transport equations than the neutron diffusion equation that also have reasonable computational ...
Sánchez Juan, Elena; Coll Aliaga, Peregrina del Carmen; Ginestar Peiro, Damián; Sanabria Codesal, Esther(Universitat Politècnica de València, 2017-05-18)
Se presentan los dos comandos del programa Mathematica que permiten calcular la transformada de Laplace o en su caso, la transformada de Laplace inversa de una función dada. Se detalla como construir una función usando la ...
Sánchez, Guadalupe M.; Vidal Gimeno, Vicente Emilio; Verdú Martín, Gumersindo Jesús; Mayo Nogueira, Patricia; Ródenas Escribá, Francisco de Asís; Ginestar Peiro, Damián(Grupo Senda, 2011)
Las técnicas de eliminación de ruido para restaurar
imágenes ruidosas es actualmente un tema importante, por ejemplo, las imagenes médicas obtenidas por rayos X de tomografía
computarizada (TC) en condiciones de ruido ...
[EN] Starting from a steady state configuration of a nuclear power reactor some situations arise in which the reactor configuration is perturbed. The Lambda modes are eigenfunctions associated with a given configuration ...
The discontinuity factors are a technique widely used in nodal methods to minimize the error due to spatial homogenization of cross sections for a coarse mesh core calculation. In the present work, the introduction of ...
Carlos Alberola, Sofía; Sánchez Galdón, Ana Isabel; Ginestar Peiro, Damián; Martorell Alsina, Sebastián Salvador(Elsevier, 2013-09)
Nuclear Power Plant safety analysis is mainly based on the use of best estimate (BE) codes that predict the plant behavior under normal or accidental conditions. As the BE codes introduce uncertainties due to uncertainty ...
Proper generalized decomposition is a recently developed technique that solves some
multidimensional problems using auxiliar models in a lower dimensional space. A method
based on this technique together with the Newton ...
[EN] The diffusion approximation to the time-dependent Boltzmann transport equation gives accurate results for traditional nuclear reactor designs, but new reactor designs and new fuel elements require neutron transport ...
[EN] Electroelastic materials, as for example, 3M VHB 4910, are attracting attention as actuators or generators in some developments and applications. This is due to their capacity of being deformed when submitted to an ...