Ara es mostren els items 12194-12213 de 89454

  • Beach cusps and inner surf zone processes: growth or destruction? A case study of Trafalgar Beach (Cadiz, Spain) 

    Garnier, Roland; Ortega Sánchez, Miguel; Losada, Miguel Ángel; Falqués Serra, Albert; Dodd, Nicholas (2010-09)
    Article
    Accés obert
    Large beach cusps (LBC, wavelength of ~ 30 m) are intertidal features that can alternately exist in the swash and in the inner surf zone due to tidal sea level changes. They have a larger cross-shore extent (up to 50 m) ...
  • Beach erosion in a Danish beach. Assessment and implications 

    Ferran Marques, Eloi (Universitat Politècnica de Catalunya, 2015-06)
    Tesina
    Accés restringit per decisió de l'autor
  • Beach inundation and morphological changes during storms using video monitoring techniques 

    Sancho García, Amanda (Universitat Politècnica de Catalunya, 2012-11-16)
    Tesi
    Accés obert
    The predictability of beach inundation is mainly related to wave runup and most of the formulations that have been developed focus on the hydrodynamics, disregarding the morphological changes caused during storms. For these ...
  • Beach recovery capacity along Catalan Beaches 

    Rojals Mainar, Alex (Universitat Politècnica de Catalunya, 2016-09)
    Treball Final de Grau
    Accés obert
    Onshore offshore transport at the surfzone and close to the breaking zone is mainly induced by waves. Wave regimes then controls the capacity to transport sediment from the submerged part of the beach to the upper/emerged ...
  • Beacons - serveis de proximitat: sistema de posicionament a interiors 

    Ariñez Soriano, Daniel (Universitat Politècnica de Catalunya, 2015-10-28)
    Treball Final de Grau
    Accés obert
    El projecte tracta sobre el posicionament en interiors utilitzant una combinació de les tecnologies WiFi i Bluetooth Low Energy combinades amb l'algorisme de fingerprint i Support Vector Machines.
  • Beam finite element for nonlinear analysis of floating structures 

    Bargués Junyent, Eduard (Universitat Politècnica de Catalunya, 2015-06-15)
    Tesina
    Accés obert
  • Beam focalization by chirped mirrors 

    Cheng, Yu Chieh; Peckus, Martynas; Kicas, Simonas; Trull Silvestre, José Francisco; Cojocaru, Crina; Vilaseca Alavedra, Ramon; Drazdys, Ramutis; Staliunas, Kestutis (Optical Society of American (OSA), 2014)
    Text en actes de congrés
    Accés restringit per acord de confidencialitat
    A novel application of chirped dielectric mirrors for narrow beam focalization is proposed and demonstrated numerically and experimentally. Analogy to temporal dispersion compensation by chirped dielectric mirrors is discussed.
  • Beam focalization in reflection from flat dielectric subwavelength gratings 

    Cheng, Yu Chieh; Zeng, H; Trullàs Simó, Joaquim; Cojocaru, Crina; Malinauskas, Mangirdas; Jukna, T; Wiersma, D.S.; Staliunas, Kestutis (2014-10-15)
    Article
    Accés restringit per política de l'editorial
    We experimentally demonstrate the recently predicted effect of near-field focusing for light beams from flat dielectric subwavelength gratings (SWGs). This SWGs were designed for visible light 532 nm and fabricated by ...
  • Beam focusing in chirped mirror with a defect 

    Cheng, Yu Chieh; Staliunas, Kestutis (IEEE Press ; Wiley, 2004)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Recently the beam focusing in reflection from chirped dielectric mirror has been proposed and demonstrated, where the negative (anomalous) diffraction is responsible for this flat mirror focusing. For a strong focusing ...
  • Beam focusing in reflections from flat subwavelength diffraction gratings 

    Cheng, Yu Chieh; Redondo, Javier; Staliunas, Kestutis (2014-03-10)
    Article
    Accés obert
    We predict that narrow beams, reflecting from flat subwavelength diffraction gratings, can focus. The effect is shown for the beams of electromagnetic radiation; however, it should be observable for beams of waves of ...
  • Beam search for the longest common subsequence problem 

    Blum, Christian; Blesa Aguilera, Maria Josep; López Ibañez, Manuel (2008-10)
    Report de recerca
    Accés obert
    The longest common subsequence problem is a classical string problem that concerns finding the common part of a set of strings. It has several important applications, for example, pattern recognition or computational ...
  • Beam shaping in spatially modulated broad-area semiconductor amplifiers 

    Herrero Simon, Ramon; Botey Cumella, Muriel; Radziunas, Mindaugas; Staliunas, Kestutis (2012-12-15)
    Article
    Accés obert
    We propose and analyze a beam-shaping mechanism that in broad-area semiconductor amplifiers occurs due to spatial pump modulation on a micrometer scale. The study, performed under realistic parameters and conditions, ...
  • Beam steering accuracy in holographic optical tweezers 

    Català i Castro, Frederic (Universitat Politècnica de Catalunya, 2013-09-10)
    Projecte Final de Màster Oficial
    Accés obert
    [ANGLÈS] The use of spatial light modulators (SLMs) to achieve dynamic control of optical tweezers is observed to provide subnanometer precision in single trap positioning. However, some features concerning the digitalized ...
  • Beam steering by x(2) trapping 

    Torner Sabata, Lluís; Torruellas, William; Stegeman, George; Menyuk, Curtis (1995-09)
    Article
    Accés restringit per política de l'editorial
    We show numerically the mutual dragging and locking together of intense fundamental and second-harmonic light beams propagating in second-order nonlinear media, and we discuss the potential applications of such effects for ...
  • Beam-ACO applied to assembly line balancing 

    Blum, Christian; Bautista Valhondo, Joaquín; Pereira Gude, Jordi (2006-05)
    Report de recerca
    Accés obert
    Assembly line balancing concerns the design of assembly lines for the manufacturing of products. In this paper we consider the time and space constrained simple assembly line balancing problem with the objective of minimizing ...
  • Beam-ACO based on stochastic sampling: a case study on the TSP with time windows 

    López Ibáñez, Manuel; Blum, Christian (2008-10)
    Report de recerca
    Accés obert
    Beam-ACO algorithms are hybrid methods that combine the metaheuristic ant colony optimization with beam search. They heavily rely on accurate and computationally inexpensive bounding information for choosing between different ...
  • Beam-ACO based on stochastic sampling: a case study on the TSP with time windows 

    López Ibáñez, Manuel; Blum, Christian (2009)
    Article
    Accés restringit per política de l'editorial
    Beam-ACO algorithms are hybrid methods that combine the metaheuristic ant colony optimization with beam search. They heavily rely on accurate and computationally inexpensive bounding information for choosing between different ...
  • Beam-ACO for the longest common subsequence problem 

    Blum, Christian (IEEE Computer Society Publications, 2010)
    Text en actes de congrés
    Accés obert
    The longest common subsequence problem is classical string problem. It has applications, for example, in pattern recognition and bioinformatics. In this work we present a socalled Beam-ACO approach for solving this problem. ...
  • Beam-ACO for the repetition-free longest common subsequence problem 

    Blum, Christian; Blesa Aguilera, Maria Josep; Calvo, Borja (2013)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    In this paper we propose a Beam-ACO approach for a combinatorial optimization problem known as the repetition-free longest common subsequence problem. Given two input sequences x and y over a finite alphabet S, this problem ...
  • Beam-ACO for the travelling salesman problem with time windows 

    López Ibáñez, Manuel; Blum, Christian (2009-07)
    Report de recerca
    Accés obert
    The travelling salesman problem with time windows is a difficult optimization problem that arises, for example, in logistics. This paper deals with the minimization of the travel cost. For solving this problem, this paper ...