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Mostrando ítems 319-338 de 751

    • openAccess   Generalized elastodynamic model for nanophotonics 

      Álvarez, J. V.; Djafari Rouhani, Bahram; Torrent, Daniel American Physical Society (2020)
      A self-consistent theory for the classical description of the interaction of light and matter at the nanoscale is presented, which takes into account spatial dispersion. Up to now, the Maxwell equations in nanostructure ...

    • openAccess   Generalized Linear Models for Geometrical Current predictors. An application to predict garment fit 

      Barahona-Albiol, Sònia; Centella, P.; Gual-Arnau, Ximo; Ibáñez Gual, Maria Victoria; Simó, Amelia SAGE Publications (2019)
      The aim of this paper is to model an ordinal response variable in terms of vector-valued functional data included on a vector-valued RKHS. In particular, we focus on the vector-valued RKHS obtained when a geometrical ...

    • closedAccess   Generation of multifocal irradiance patterns by using complex Fresnel holograms 

      Mendoza-Yero, Omel; Carbonell Leal, Miguel; Mínguez-Vega, Gladys; Lancis, Jesús Optical Society of America (2018)
      We experimentally demonstrate Fresnel holograms able to produce multifocal irradiance patterns with micrometric spatial resolution. These holograms are assessed from the coherent sum of multiple Fresnel lenses. The utilized ...

    • openAccess   Generation of programmable 3D optical vortex structures through devil’s vortex-lens arrays 

      Calabuig Barroso, Alejandro; Sánchez Ruiz, Sergio; Martínez-León, Lluís; Tajahuerce, Enrique; Fernández Alonso, Mercedes; Furlan, Walter; Monsoriu, Juan A.; Pons Martí, Amparo The Optical Society (OSA) (2013-08)
      Different spatial distributions of optical vortices have been generated and characterized by implement- ing arrays of devil’s vortex lenses in a reconfigurable spatial light modulator. A simple design procedure assigns the ...

    • openAccess   Geometric analysis of planar shapes with applications to cell deformations 

      Gual-Arnau, Ximo; Herold-García, Silena; Simó, Amelia International Society for Stereology (2015-07)
      Shape analysis is of great importance in many fields such as computer vision, medical imaging, and computational biology. In this paper we focus on a shape space in which shapes are represented by means of planar closed ...

    • openAccess   Geometric approach to non-relativistic quantum dynamics of mixed states 

      Gimeno, Vicent; Martínez Sotoca, José AIP Publishing LLC (2013-05)
      In this paper we propose a geometrization of the non-relativistic quantum mechanics for mixed states. Our geometric approach makes use of the Uhlmann's principal fibre bundle to describe the space of mixed states and as a ...

    • openAccess   Geoskills among academic librarians in Greece, Cyprus and Spain 

      Vardakosta, Ifigenia; Aguilar Moreno, Estefanía; Granell, Carlos; Kapidakis, Sarantos Elsevier (2016)
      Existing literature on Geographic Information (GI) and libraries points out that American and Canadian librarians have long been aware of the intimate relationship between geospatial data and libraries. In Europe, though, ...

    • openAccess   Geospatial Analysis of Extreme Weather Events in Nigeria (1985–2015) Using Self-Organizing Maps 

      Akande, Adeoluwa; Costa, Ana Cristina; Mateu, Jorge; Henriques, Roberto (2017)
      The explosion of data in the information age has provided an opportunity to explore the possibility of characterizing the climate patterns using data mining techniques. Nigeria has a unique tropical climate with two ...

    • openAccess   Geospatial information infrastructures to address spatial needs in health: Collaboration, challenges and opportunities 

      Granell, Carlos; Belmonte-Fernández, Óscar; Díaz Sánchez, Laura Elsevier (2013)
      Most health-related issues such as public health outbreaks and epidemiological threats are better understood from a spatial–temporal perspective and, clearly demand related geospatial datasets and services so that decision ...

    • closedAccess   Geostatistical methods to identify and map spatial variations of soil salinity 

      Juan, Pablo; Mateu, Jorge; Jordán Vidal, Manuel Miguel; Mataix-Solera, Jorge; Meléndez-Pastor, I.; Navarro Pedreño, José Elsevier (2011-01)
      The problem of estimating and predicting spatial distribution of a spatial stochastic process, observed at irregular locations in space, is considered in this paper. Environmental variables usually show spatial dependencies ...

    • closedAccess   Geostatistical mixed beta regression: a Bayesian approach 

      Lagos Álvarez, Bernardo M.; Fustos Toribio, Roberto Miguel; Figueroa Zúñiga, Jorge; Mateu, Jorge Springer Verlag (2017)
      This paper develops regression techniques for geostatistical data, with an emphasis in proportions mea- sured on a continuous scale. Specifically, it deals with Beta regression models with mixed effects to control the ...

    • openAccess   Gestión de datos geográficos en bibliotecas universitarias españolas: estado de la cuestión 

      Aguilar Moreno, Estefanía; Granell, Carlos CSIC (2015)
      Este trabajo presenta los resultados de una encuesta sobre la gestión de datos geográficos digitales en bibliotecas universitarias españolas. El objetivo de la investigación es averiguar en qué estado se encuentran las ...

    • openAccess   Giga-voxel multidimensional fluorescence imaging combining single-pixel detection and data fusion 

      Soldevila, Fernando; Lenz, Armin; Ghezzi, Alberto; Farina, Andrea; D'Andrea, Cosimo; Tajahuerce, Enrique Optical Society of America (2021-08-27)
      Time-resolved fluorescence imaging is a key tool in biomedical applications, as it allows to non-invasively obtain functional and structural information. However, the big amount of collected data introduces challenges in ...

    • openAccess   Glassy dynamics of two poly(ethylene glycol) derivatives in the bulk and in nanometric confinement as reflected in its inter- and intra-molecular interactions 

      Jasiurkowska-Delaporte, Małgorzata; Kossack, Wilhelm; Kiprop Kipnusu, Wycliffe; Sangoro, Joshua; Iacob, Ciprian; Kremer, Friedrich AIP Publishing (2018-08)
      The inter- and intra-molecular interactions as they evolve in the course of glassy solidification are studied by broadband dielectric—and Fourier-transform infrared—spectroscopy for oligomeric derivatives of poly(ethylene ...

    • openAccess   Glimpse: A gaze-based measure of temporal salience 

      Traver Roig, Vicente Javier; Zorío Ventura, Judith; Leiva, Luis A. Multidisciplinary Digital Publishing Institute (2021-04-29)
      Temporal salience considers how visual attention varies over time. Although visual salience has been widely studied from a spatial perspective, its temporal dimension has been mostly ignored, despite arguably being of ...

    • openAccess   GPU Parallel Implementation of Dual-Depth Sparse Probabilistic Latent Semantic Analysis for Hyperspectral Unmixing 

      Gallardo Jaramago, Jose Antonio; Paoletti, Mercedes Eugenia; Haut, Juan M.; Fernandez-Beltran, Ruben IEEE (2019-08-22)
      Hyperspectral unmixing (HU) is an important task for remotely sensed hyperspectral (HS) data exploitation. It comprises the identification of pure spectral signatures (endmembers) and their corresponding fractional abundances ...

    • openAccess   Gradient index phononic crystals and metamaterials 

      Jin, Yabin; Djafari Rouhani, Bahram; Torrent, Daniel De Gruyter (2019)
      Phononic crystals and acoustic metamaterials are periodic structures whose effective properties can be tailored at will to achieve extreme control on wave propagation. Their refractive index is obtained from the ...

    • openAccess   Graph Neural Network for Air Quality Prediction: A Case Study in Madrid 

      Iskandaryan, Ditsuhi; Ramos Romero, José Francisco; Trilles, Sergio IEEE (2023)
      Air quality monitoring, modelling and forecasting are considered pressing and challenging topics for citizens and decision-makers, including the government. The tools used to achieve the above goals vary depending on the ...

    • openAccess   Graph Relation Network: Modeling Relations Between Scenes for Multilabel Remote-Sensing Image Classification and Retrieval 

      kang, jian; Fernandez-Beltran, Ruben; Danfeng, Hong; Chanussot, Jocelyn; Plaza, Antonio IEEE (2020-08-21)
      Due to the proliferation of large-scale remote-sensing (RS) archives with multiple annotations, multilabel RS scene classification and retrieval are becoming increasingly popular. Although some recent deep learning-based ...

    • openAccess   Graphical Framework for Categorizing Data Capabilities and Properties of Objects in the Internet of Things 

      Ibarra-Esquer, Jorge Eduardo; González-Navarro, Félix Fernando; Sánchez Garreta, Josep Salvador; Flores-Ríos, Brenda Leticia; Astorga Vargas, María Angélica; Gonzalez-Ramirez, Maria-Luisa IEEE (2020-01-27)
      Things are the core of the Internet of Things (IoT) and must be properly characterized according to the different functions they accomplish. Identifying their capabilities and combining them as sets provides a view on the ...