Now showing items 1-9 of 9

    • Application of multifractal analysis to the study of SAR features and oil spills on the ocean surface 

      Tarquis Alfonso, Ana Maria; Platonov, A.; Matulka, Anna Magdalena; Grau, J.; Sekula, Emil; Diez, M.; Redondo Apraiz, José Manuel (University of Thechnology and Agriculture Nicholas Copernicus University, 2014-01-01)
      Article
      Open Access
      The use of synthetic aperture radar (SAR) to investigate the ocean surface provides a wealth of useful information that is very seldom used to its full potential. Here we will discuss the application of multifractal ...
    • Enviromental patterns and intermittent cascades 

      Redondo Apraiz, José Manuel; Carrillo Cortés, José Alejandro; Díez Rilova, Margarita; Jorge Sánchez, Juan; Sekula, Emil (2017)
      Conference report
      Open Access
      Real environmental flows are non-homogeneous, of fundamental interest is to determine and quantify turbulent diffusion from the available conditions of the flow, because the role of buoyancy and rotation modify the flow ...
    • Modification of epoxy–anhydride thermosets with a hyperbranched poly(ester amide). II. Thermal, dynamic mechanical, and dielectric properties and thermal reworkability 

      Fernández Francos, Xavier; Rybak, Andrzej; Sekula, Emil; Ramis Juan, Xavier; Ferrando Piera, Francesc; Okrasa, Lidia; Serra Albet, Àngels (2013-06)
      Article
      Restricted access - publisher's policy
      An epoxy–anhydride formulation used for the coating electrical devices was modified with a commercially available hyperbranched poly(ester amide), Hybrane S2200, to improve the thermal degradability of the resulting thermoset ...
    • Multifractal observations of eddies, oil spills and natural slicks in the ocean surface 

      Platónov, Alexéi Konstantínovich; Carrillo Cortés, José Alejandro; Matulka, Anna Magdalena; Sekula, Emil; Grau Barceló, Joan; Redondo Apraiz, José Manuel; Tarquis, Ana Maria (2009-06-11)
      Article
      Restricted access - publisher's policy
      Natural and man-made distributions of tensioactive substance concentrations in the sea surface features exhibit self-similarity at all radar reflectivity levels when illuminated by SAR. This allows the investigation of the ...
    • Ocean classification of dynamical structures detected by SAR and spectral methods 

      Redondo Apraiz, José Manuel; Martínez Benjamín, Juan José; Tellez Alvarez, Jackson David; Jorge Sánchez, Juan; Díez Rilova, Margarita; Sekula, Emil (European Space Agency (ESA), 2016)
      Conference report
      Open Access
      We discuss a taxonomy of different dynamical featuresin the ocean surface and provide some eddy and frontstatistics, as well as describing some events detected byseveral satellites and even with additional cruise observationsand ...
    • Sediment and plankton lift off recirculations in strong synthetic turbulence (KS) 

      Redondo Apraiz, José Manuel; Castilla López, Roberto; Sekula, Emil; Furmanek, Petr (2014)
      Conference report
      Open Access
      The study of particle diffusion and of turbulent sedimentation is of great importance in many geophysical fields, such as in Environmental Science or Oceanography as well as in Bio-environmental and industrial processes. ...
    • Structure of 3D turbulent wall jets: acoustic doppler velocity measurements 

      Sekula, Emil; Redondo Apraiz, José Manuel (Atenea. Campus digital UPC, 2009)
      Conference report
      Restricted access - publisher's policy
      The main aim of this research is to understand and describe key aspects of the structure of turbulent jets and plumes and their interaction with coherent structures together with the effects connected with them (for example ...
    • Swimming propulsion due to vortices 

      Redondo Apraiz, José Manuel; Arellano, Raul; Carrillo Cortés, José Alejandro; Matulka, Annia; Ben Mahjoub, Otman; Sekula, Emil (Institute of Thermomechanics, Academy of Sciences of the Czech Republic, 2012-02-15)
      Part of book or chapter of book
      Restricted access - publisher's policy
    • Turbulent diffusion and mixing in non-homogeneous environments 

      Redondo Apraiz, José Manuel; Díez Rilova, Margarita; Sekula, Emil; Mahjoub, Otman (2012)
      Conference report
      Open Access
      Many experimental and field studies have been devoted to the understanding of non-homogeneous turbulent dynamics. Activity in this area intensified when the basic Kolmogorov self-similar theory was extended to two-dimensional or ...