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Ara es mostren els items 44920-44939 de 245573

    • Compressed air energy storage: a completion plan for a lab-scale model 

      Ojeda Marcos, Alejandro; Peeters, Arne; van Tilborgh, Dean; Soszynski, Mateusz (Universitat Politècnica de Catalunya, 2020-06)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      Realitzat a/amb:   Yrkeshögskolan Novia
      This report presents the technology of compressed air and thermo energy storages. The project is made by the EPS group of autumn and spring. The Project Owner and Novia European Project Semester (EPS) Program gives the EPS ...

    • Compressed Color Image Enhancement with CNN 

      Fuyà Espinar, Daniel (Universitat Politècnica de Catalunya, 2019-07)
      Treball Final de Grau
      Accés obert
      JPEG is a widely used lossy compression method for digital images. For high levels of compression, JPEG introduces undesired artifacts, like ringing or blocking effects, that affect negatively to the visual quality of ...

    • Compressed correlation-matching for spectrum sensing in sparse wideband regimes 

      Font Segura, Josep; Vázquez Grau, Gregorio; Riba Sagarra, Jaume (IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      In this paper, we consider a novel compressed correlation-matching (CCM) approach for spectrum sensing of wideband sparse signals. We derive a general closed-form estimate of the wideband sparse signal level from compressed ...

    • Compressed Representation of 3D Models for 3D Printing 

      Ballesteros Brandão, João Hugo (Universitat Politècnica de Catalunya, 2020-06-23)
      Projecte Final de Màster Oficial
      Accés obert
      In this work we tackle the issue of large file sizes in disk of volume data representations of 3D models when used for 3D printing purposes. In the pipeline of 3D printing software, the representation, in disk, of the model ...

    • Compressed sensing and approximate message passing for the single-pixel camera 

      Biosca Caro, Jordi (Universitat Politècnica de Catalunya, 2018-06)
      Treball Final de Grau
      Accés obert
      This thesis is based on the technology of Compressed Sensing and the study of the algorithms of Approximate Message Passing for the single-pixel camera. This thesis has been developed in the institute of telecommunication ...

    • Compressed sensing for electron microscope data 

      Vila Oliva, Marc Manel (Universitat Politècnica de Catalunya, 2011-06-28)
      Projecte/Treball Final de Carrera
      Accés obert
      Realitzat a/amb:   Kungliga Tekniska högskolan
      English: Recent work in the field of Compressed Sensing has suggested a great variety of new possibilities in the world of image reconstruction. We have been focused on a novel approach using this kind of algorithms based ...

    • Compressed sparse FM-index: Fast sequence alignment using large K-steps 

      Langarita Benítez, Rubén; Armejach Sanosa, Adrià; Setoain, Javier; Ibáñez Marín, Pablo Enrique; Alastruey Benedé, Jesús; Moretó Planas, Miquel (2022-01-01)
      Article
      Accés obert
      The FM-index is a data structure used in genomics for exact search of input sequences over large reference genomes. Algorithms based on the FM-index show an irregular memory access pattern, resulting in a memory bound ...

    • Compressed spectrum sensing in the presence of interference: comparison of sparse recovery strategies 

      Lagunas Targarona, Eva; Nájar Martón, Montserrat (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Existing approaches to Compressive Sensing (CS) of sparse spectrum has thus far assumed models contaminated with noise (either bounded noise or Gaussian with known power). In practical Cognitive Radio (CR) networks, primary ...

    • Compressibility effects on the wake dynamics of a circular cylinder 

      Rodríguez Pérez, Ivette María; Eiximeno Franch, Benet; Gasparino, Lucas; Tur Monge, Carlos; Muela Castro, Jordi; Lehmkuhl Barba, Oriol (European Research Community on Flow, Turbulence, and Conbustion (ERCOFTAC), 2023)
      Text en actes de congrés
      Accés obert
      Compressible large-eddy simulations of the flow past a circular cylinder at Reynolds numbers Re = 104 and Mach numbers in the range M = 0.2-1.2 are performed. Changes in the wake dynamics, coherent structures and flow ...

    • Compressibility of infinite binary sequences 

      Balcázar Navarro, José Luis; Gavaldà Mestre, Ricard; Hermo Huguet, Montserrat (1996-02-06)
      Report de recerca
      Accés obert
      It is known that infinite binary sequences of constant Kolmogorov complexity are exactly the recursive ones. Such a kind of statement no longer holds in the presence of resource bounds. Contrary to what intuition might ...

    • Compressible 1D-3D simulation of a muffler with pseudosound prediction levels 

      López Mas, Joan; Ruano Pérez, Jesús; Lehmkuhl Barba, Oriol; Rigola Serrano, Joaquim; Oliva Llena, Asensio (International Institute of Refrigeration, 2015)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Numerical software for the simulation of thermal and fluid-dynamic behavior of hermetic reciprocating compressors is a must for its understanding and improvement. Hence, these tools are widely used to improve ...

    • Compressing network data with deep learning 

      Gili Fernández De Romarategui, David (Universitat Politècnica de Catalunya, 2024-01-25)
      Projecte Final de Màster Oficial
      Accés obert
      This thesis delves into the problem of compressing data generated by mobile networks, which are formed by many antennas and IoT devices, that emit huge quantities of measurements. Storing this data is growing more difficult ...

    • Compression and shear wave propagation in cemented sand specimens 

      Amaral, M.F.; Viana da Fonseca, A.; Arroyo Alvarez de Toledo, Marcos; Cascante, G.; Carvalho, J. (2011)
      Article
      Accés restringit per política de l'editorial
      Ultrasonic and bender element tests in the laboratory are typically used to measure elastic modulus and damping ratio. However, interpretation of the results is challenging for a variety of reasons, including the influence ...

    • Compression and the origins of Zipf's law for word frequencies 

      Ferrer Cancho, Ramon (2016-11-01)
      Article
      Accés obert
      Here we sketch a new derivation of Zipf's law for word frequencies based on optimal coding. The structure of the derivation is reminiscent of Mandelbrot's random typing model but it has multiple advantages over random ...

    • Compression as a universal principle of animal behavior 

      Ferrer Cancho, Ramon; Hernández Fernández, Antonio; Lusseau, David; Agoramoorthy, Govindasamy; Hsu, Minna J.; Semple, Stuart (Wiley, 2013)
      Article
      Accés obert
      A key aim in biology and psychology is to identify fundamental principles underpinning the behavior of animals, including humans. Analyses of human language and the behavior of a range of non-human animal species have ...

    • Compression behaviors of low-density porous materials under multiaxial stress conditions 

      Sakuma, Atsushi; Nagaki, Shigeru (CIMNE, 2011)
      Text en actes de congrés
      Accés obert
      In this study, uniaxial and multiaxial compression tests are conducted for studying the nonlinear deformation behaviors of a porous material during compression. In the results of uniaxial compression tests, the stress level ...

    • Compression of convolutional neural networks using Tucker Decomposition 

      Granés Santamaria, Cristina (Universitat Politècnica de Catalunya, 2017-05-23)
      Projecte Final de Màster Oficial
      Accés obert
      Realitzat a/amb:   Data61 / Commonwealth Scientific and Industrial Research Organization
      Nowadays, deep neural networks are being introduced in mobile devices where memory space and computation speed is limited. Therefore, the need for more com- pression in those networks has increased. In this work, we explore ...

    • Compression of multibeam echosounders bathymetry and water column data 

      Martí, Aniol; Portell de Mora, Jordi; Amblàs Novellas, David; Cabrera Estanyol, Ferran de; Vila Insa, Marc; Riba Sagarra, Jaume; Mitchell, Garrett (Multidisciplinary Digital Publishing Institute (MDPI), 2022-04-25)
      Article
      Accés obert
      Over the past decade, Multibeam Echosounders (MBES) have become one of the most used techniques in sea exploration. Modern MBES are capable of acquiring both bathymetric information on the seafloor and the reflectivity of ...

    • Compression of the MoM matrix using macrobasis functions with a full-controlable accuracy 

      Tamayo Palau, José María; Heldring, Alexander; Rius Casals, Juan Manuel (EurAPP, 2009)
      Text en actes de congrés
      Accés obert
      A new accuracy-controlable method for compressing the MoM impedance matrix of an electromagnetic problem based on a basis change plus a truncation with a threshold is presented here. The idea is to switch to singular basis ...

    • Compression principle and Zipf’s Law of brevity in infochemical communication 

      Hernández Fernández, Antonio; González Torre, Iván (2022-07)
      Article
      Accés obert
      Compression has been presented as a general principle of animal communication. Zipf’s Law of brevity is a manifestation of this postulate and can be generalized as the tendency of more frequent communicative elements to ...