Publications

Displaying 876 - 900 of 1307

Publication	Date
Effects of Second-Order Extreme Waves on the Dynamics of a Non-Linear Floating Body Authors: Vincenzo Nava,Felice Arena Nowadays technical and scientific communities are increasingly interested in the development of technologies for floating devices which can serve different purposes both in coastal and offshore environment. Thus, strong effort is required in the development of correct and efficient algorithms for… American Society of Mechanical Engineers	2012-07-01
Editorial Authors: S. Gil-López,S. Salcedo-Sanz,J. Del Ser Elsevier BV	2012-07-01
Suppression of the cardiopulmonary resuscitation artefacts using the instantaneous chest compression rate extracted from the thoracic impedance Authors: Jo Kramer-Johansen,Trygve Eftestøl,Elisabete Aramendi,Unai Ayala,Unai Irusta,Erik Alonso To demonstrate that the instantaneous chest compression rate can be accurately estimated from the transthoracic impedance (TTI), and that this estimated rate can be used in a method to suppress cardiopulmonary resuscitation (CPR) artefacts.A database of 372 records, 87 shockable and 285 non-… Elsevier BV	2012-06-01
Foraging Ecology in Mehely's Horseshoe Bats: Influence of Habitat Structure and Water Availability Authors: Inmaculada Arostegui,Urtzi Goiti,Joxerra Aihartza,Inazio Garin,Egoitz Salsamendi,David Almenar (Uploaded by Plazi for the Bat Literature Project) The climate in Mediterranean ecosystems is characterised by aestival hot temperatures and water shortages which may affect the behaviour of bats living in these environments. We evaluated the influence of habitat type, habitat structure, and water… Museum and Institute of Zoology at the Polish Academy of Sciences	2012-06-01
An analysis of the use of probabilistic modeling for synaptic connectivity prediction from genomic data Authors: Jose A. Lozano,Alexander Mendiburu,Roberto Santana The identification of the specific genes that influence particular phenotypes is a common problem in genetic studies. In this paper we address the problem of determining the influence of gene joint expression in synapse predictability. The question is posed as an optimization problem in which the… IEEE	2012-06-01
Structural transfer using EDAs: An application to multi-marker tagging SNP selection Authors: Alexander Mendiburu,Roberto Santana,Jose A. Lozano In this paper we investigate the question of transfer learning in evolutionary optimization using estimation of distribution algorithms. We propose a framework for transfer learning between related optimization problems by means of structural transfer. Different methods for incrementing or… IEEE	2012-06-01
Cloud structure of Saturn’s 2010 storm from ground-based visual imaging Authors: Sanz-Requena, J. F.,Pérez-Hoyos, S.,Sánchez-Lavega, A.,del Río-Gaztelurrutia, T.,Barrado-Navascués, D.,Colas, F.,Lecacheux, J.,Parker, D. We present a study of the vertical cloud structure for the initial stage of the Great White Spot (GWS), a giant storm that developed in Saturn in December 2010, using ground-based visual images. We focus in the characterization of the undisturbed atmosphere preceding the storm and the disturbed… Elsevier BV	2012-05-01
Lower bounds for non-trivial travelling wave solutions of equations of KdV type Authors: Carlos E. Kenig,Luis Vega,Gustavo Ponce We prove that if a solution of an equation of KdV type is bounded above by a traveling wave with an amplitude that decays faster than a given linear exponential then it must be zero. We assume no restrictions neither on the size nor in the direction of the speed of the traveling wave. IOP Publishing	2012-04-02
A novel grouping harmony search algorithm for the multiple-type access node location problem Authors: Itziar Landa-Torres,Jose A. Portilla-Figueras,Sancho Salcedo-Sanz,Sergio Gil-Lopez,J. Del Ser In this paper we present a novel grouping harmony search algorithm for the Access Node Location Problem (ANLP) with different types of concentrators. The ANLP is a NP-hard problem where a set of distributed terminals, with distinct rate demands, must be assigned to a variable number of… Elsevier BV	2012-04-01
Toward Understanding EDAs Based on Bayesian Networks Through a Quantitative Analysis Authors: Alexander Mendiburu,Carlos Echegoyen,R. Santana,Jose A. Lozano The successful application of estimation of distribution algorithms (EDAs) to solve different kinds of problems has reinforced their candidature as promising black-box optimization tools. However, their internal behavior is still not completely understood and therefore it is necessary to work in… Institute of Electrical and Electronics Engineers (IEEE)	2012-04-01
Multiscale Simulations of the Antimicrobial Peptide Maculatin 1.1: Water Permeation through Disordered Aggregates Authors: Elena Akhmatskaya,Elena Akhmatskaya,Mark S.P. Sansom,Daniel L. Parton The antimicrobial peptide maculatin 1.1 (M1.1) is an amphipathic α-helix that permeabilizes lipid bilayers. In coarse-grained molecular dynamics (CG MD) simulations, M1.1 has previously been shown to form membrane-spanning aggregates in DPPC bilayers. In this study, a simple multiscale methodology… American Chemical Society (ACS)	2012-03-09
The cost of continuity: A study of the performance of isogeometric finite elements using direct solvers Authors: Collier, Nathan,Pardo, David,Dalcín, Lisandro D.,Paszyński, Maciej R.,Calo, Victor M. We study the performance of direct solvers on linear systems of equations resulting from isogeometric analysis. The problem of choice is the canonical Laplace equation in three dimensions. From this study we conclude that for a fixed number of unknowns and polynomial degree of approximation, a… Elsevier BV	2012-03-01
Exploiting domain information for Word Sense Disambiguation of medical documents Authors: Stevenson, M,Agirre, E,Soroa, A Current techniques for knowledge-based Word Sense Disambiguation (WSD) of ambiguous biomedical terms rely on relations in the Unified Medical Language System Metathesaurus but do not take into account the domain of the target documents. The authors' goal is to improve these methods by using… Oxford University Press (OUP)	2012-03-01
Morphology of the cloud tops as observed by the Venus Express Monitoring Camera Authors: Ralf Jaumann,Sanjay S. Limaye,David Crisp,Nikolay Ignatiev,H. U. Keller,Richard Moissl,Klaus-Dieter Matz,Agustín Sánchez-Lavega,Miguel Almeida,Thomas Roatsch,Jonas Hesemann,Dmitrij V. Titov,Larry W. Esposito,Wojciech J. Markiewicz,Frank Scholten,Stubbe F… Abstract Since the discovery of ultraviolet markings on Venus, their observations have been a powerful tool to study the morphology, motions and dynamical state at the cloud top level. Here we present the results of investigation of the cloud top morphology performed by the Venus Monitoring… Elsevier BV	2012-02-01
Centralized and distributed spectrum channel assignment in cognitive wireless networks: A Harmony Search approach Authors: Javier Del Ser,Sergio Gil-Lopez,Marja Matinmikko,Miia Mustonen This paper gravitates on the spectrum channel allocation problem where each compounding node of a cognitive radio network is assigned a frequency channel for transmission over a given outgoing link, based on optimizing an overall network performance metric dependant on the level of interference… Elsevier BV	2012-02-01
Existence of maximizers for Sobolev–Strichartz inequalities Authors: FANELLI L,VEGA L,VISCIGLIA, NICOLA 10 pages Elsevier BV	2012-02-01
Assessing the long-term variability of Venus winds at cloud level from VIRTIS–Venus Express Authors: Agustín Sánchez-Lavega,Ricardo Hueso,Javier Peralta Abstract The Venus Express (VEX) mission has been in orbit to Venus for more than 4 years now. The Visible and Infrared Thermal Imaging Spectrometer (VIRTIS) instrument onboard VEX observes Venus in two channels (visible and infrared) obtaining spectra and multi-wavelength images of the planet… Elsevier BV	2012-02-01
*Dynamic modeling of the morphology of latex particles with in situ* formation of graft copolymer** Authors: Akhmatskaya, E.,Asua, J.M. AbstractModification of the polymer–polymer interfacial tension is a way to tailor‐make particle morphology of waterborne polymer–polymer hybrids. This allows achieving a broader spectrum of application properties and maximizing the synergy of the positive properties of both polymers, avoiding… Wiley	2012-01-12
Concurrent and Distributed Projection through Local Interference for Wireless Sensor Networks Authors: Javier Del Ser,Pedro M. Crespo,Baltasar Beferull,Xabier Insausti In this paper we use a gossip algorithm to obtain the projection of the observed signal into a subspace of lower dimension. Gossip algorithms allow distributed, fast and efficient computations on a Wireless Sensor Network and they can be properly modified to evaluate the sought projection. By… Springer Berlin Heidelberg	2012-01-01
3D hp-Adaptive Finite Element Simulations of a Magic-T Electromagnetic Waveguide Structure Authors: Sergio Llorente-Romano,David Pardo,David Pardo,Gomez-Revuelto,Luis E. Garcia-Castillo This paper employs a 3D hp self-adaptive grid-refinement finite element strategy for the solution of a particular electromagnetic waveguide structure known as Magic-T. This structure is utilized as a power divider/combiner in communication systems as well as in other applications. It often… Elsevier BV	2012-01-01
A Note on the Wiener Filter for Vector Random Processes Authors: Adam Podhorski,Jesús Gutiérrez-Gutiérrez,Javier Del Ser,Inaki Iglesias In the present paper we compute the geometric minimum mean square error for the vector linear estimation problem. We do this by proving that the vector linear estimator that minimizes the mean square error (MSE) also minimizes the geometric MSE. Springer Berlin Heidelberg	2012-01-01
On Round-off Error for Adaptive Finite Element Methods Authors: Maciej Paszyński,Nathan Collier,David Pardo,David Pardo,Lisandro Dalcin,Julen Álvarez-Aramberri,Victor M. Calo AbstractRound-off error analysis has been historically studied by analyzing the condition number of the associated matrix. By controlling the size of the condition number, it is possible to guarantee a prescribed round-off error tolerance. However, the opposite is not true, since it is possible to… Elsevier BV	2012-01-01
Social Acceptance and Usage Experiences from a Mobile Location-Aware Service Environment Authors: Klein, Bernhard,Pérez-Velasco, Jorge,Guggenmos, Christian,Pihlajamaa, Olli,Heino, Immo,Del Ser, Javier MUGGES is a European research project with the goal of evaluating peer-to-peer service concepts based on GNSS systems for mobile phones. MUGGES provides an infrastructure to create, publish, provide and consume mobile micro-services directly from mobile devices. As part of the project four… Springer Berlin Heidelberg	2012-01-01
PATHS – Exploring Digital Cultural Heritage Spaces Authors: Samuel Fernando,Aitor Soroa,Kate Fernie,Runar Bergheim,Konstantinos Chandrinos,Eneko Agirre,Nikolaos Aletras,Mark Stevenson,Paula Goodale,Mark M. Hall,Jillian R. Griffiths,Andrea de Polo,Paul Clough,Oier Lopez de Lacalle Large amounts of digital cultural heritage (CH) information have become available over the past years, requiring more powerful exploration systems than just a search box. The PATHS system aims to provide an environment in which users can successfully explore a large, unknown collection through two… Springer Berlin Heidelberg	2012-01-01
Climate Change and Tourism in the Alps: A Position Paper in View of the Upcoming Alpine Convention Fourth Report on the State of the Alps on Sustainable Tourism Authors: Stefano Balbi Whereas the implementation of the Tourism Protocol of the Alpine Convention seems far from its completion, the Alpine Convention fourth report on the state of the Alps "Sustainable Tourism in the Alps" is under preparation and it is expected by the end of 2012. One of the main critical challenges… Elsevier BV	2012-01-01