41 Result(s)
within
Miguel A. Fernández
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Article
Open AccessFirst record of the semi-aquatic invasive plant Crassula helmsii in the Iberian Peninsula and its link to potential dispersal drivers
Aquatic neophytes are among the most harmful invasive species worldwide. Here we report the finding of the semi-aquatic invasive plant Crassula helmsii, naturalized in a freshwater reservoir that provides water t...
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Article
A Low-Rank Solver for Parameter Estimation and Uncertainty Quantification in Time-Dependent Systems of Partial Differential Equations
In this work we propose a low-rank solver in view of performing parameter estimation and uncertainty quantification in systems of partial differential equations. The solution approximation is sought in a space...
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Article
Convergence Analysis of an Unfitted Mesh Semi-implicit Coupling Scheme for Incompressible Fluid-Structure Interaction
The complete numerical analysis of time splitting schemes which avoid strong coupling has rarely been addressed in the literature of unfitted mesh methods for incompressible fluid-structure interaction. In thi...
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Article
Fully discrete loosely coupled Robin-Robin scheme for incompressible fluid–structure interaction: stability and error analysis
We consider a fully discrete loosely coupled scheme for incompressible fluid–structure interaction based on the time semi-discrete splitting method introduced in Burman et al. (Numer Methods Partial Differ Equ...
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Article
Isotonic boosting classification rules
In many real classification problems a monotone relation between some predictors and the classes may be assumed when higher (or lower) values of those predictors are related to higher levels of the response. I...
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Chapter and Conference Paper
3D-2D Stokes-Darcy Coupling for the Modelling of Seepage with an Application to Fluid-Structure Interaction with Contact
In this note we introduce a mixed dimensional Stokes-Darcy coupling where a d dimensional Stokes’ flow is coupled to a Darcy model on the d − 1 dimensional boundary of the domain. The porous layer introduces tang...
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Protocol
Microarray Data Normalization and Robust Detection of Rhythmic Features
Data derived from microarray technologies are generally subject to various sources of noise and accordingly the raw data are pre-processed before formally analysed. Data normalization is a key pre-processing s...
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Chapter and Conference Paper
One Mesh to Rule Them All: Registration-Based Personalized Cardiac Flow Simulations
The simulation of cardiac blood flow using patient-specific geometries can help for the diagnosis and treatment of cardiac diseases. Current patient-specific cardiac flow simulations requires a significant amo...
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Article
Utility of a mHealth App for Self-Management and Education of Cardiac Diseases in Spanish Urban and Rural Areas
Analyze the utility of a mobile health app named HeartKeeper in several groups of population and obtain conclusions to be applied to other similar apps. A questionnaire has been designed to evaluate the usage ...
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Chapter and Conference Paper
Robin-Neumann Schemes for Incompressible Fluid-Structure Interaction
Mathematical problems involving the coupling of an incompressible viscous flow with an elastic structure appear in a large variety of engineering fields (see, e.g., [14, 17, 19–21]). This problem is considered...
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Protocol
Classification of Samples with Order-Restricted Discriminant Rules
In recent years, mass spectrometry techniques have helped proteomics to become a powerful tool for the early diagnosis of cancer, as they help to discover protein profiles specific to each pathological state. ...
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Article
Incremental displacement-correction schemes for incompressible fluid-structure interaction
In this paper we introduce a class of incremental displacement-correction schemes for the explicit coupling of a thin-structure with an incompressible fluid. These methods enforce a specific Robin–Neumann expl...
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Chapter
Numerical simulation of electrocardiograms
This chapter presents a concise overview of various mathematical and numerical problems raised by the simulation of electrocardiograms (ECGs). A model for the propagation of the electrical activation in the he...
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Article
Coupling schemes for incompressible fluid-structure interaction: implicit, semi-implicit and explicit
Over the last decade, the numerical simulation of incompressible fluid-structure interaction has been a very active research field and the subject of numerous works. This is due, in particular, to the increasi...
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Article
Mathematical Modeling of Electrocardiograms: A Numerical Study
This paper deals with the numerical simulation of electrocardiograms (ECG). Our aim is to devise a mathematical model, based on partial differential equations, which is able to provide realistic 12-lead ECGs. ...
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Chapter and Conference Paper
Adding Abstraction and Reuse to a Network Modelling Tool Using the Reuseware Composition Framework
Domain-specific modelling (DSM) environments enable experts in a certain domain to actively participate in model-driven development. Develo** DSM environments need to be cost-efficient, since they are only u...
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Chapter and Conference Paper
Atlas-Based Reduced Models of Blood Flows for Fast Patient-Specific Simulations
Model-based interpretation of the complex clinical data now available (shape, motion, flow) can provide quantitative information for diagnosis as well as predictions. However such models can be extremely time ...
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Chapter and Conference Paper
An Integrated Facet-Based Library for Arbitrary Software Components
Reuse is an important means of reducing costs and effort during the development of complex software systems. A major challenge is to find suitable components in a large library with reasonable effort. This bec...
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Article
Bayes Discriminant Rules with Ordered Predictors
We propose and discuss improved Bayes rules to discriminate between two populations using ordered predictors. To address the problem we propose an alternative formulation using a latent space that allows to in...
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Chapter and Conference Paper
Numerical Simulation of the Electromechanical Activity of the Heart
We present numerical results obtained with a three-dimensional electromechanical model of the heart with a complete realistic anatomy. The electrical activity of the heart-torso domain is described by the bido...
