UAB Digital Repository of Documents 72 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
1.
On Families of Bowen - Series-Like Maps for Surface Groups / Alsedà i Soler, Lluís (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Juher, David (Universitat de Girona. Departament d'Informàtica, Matemàtica Aplicada i Estadística) ; Los, Jérôme ; Mañosas Capellades, Francesc (Universitat Autònoma de Barcelona. Departament de Matemàtiques)
We review some recent results on a class of maps, called Bowen - Series-like maps, obtained from a class of group presentations for surface groups. These maps are piecewise homeomorphisms of the circle with finitely many discontinuities. [...]
2023 - 10.1134/S1560354723040093
Regular and Chaotic Dynamics, Vol. 28, Issue 4-5 (October 2023) , p. 659-667  
2.
22 p, 713.8 KB A reexamination of information theory-based methods for DNA-binding site identification / Erill, Ivan (University of Maryland Baltimore County. Department of Biological Sciences) ; O'Neill, Michael C (University of Maryland Baltimore County. Department of Biological Sciences)
Background: Searching for transcription factor binding sites in genome sequences is still an open problem in bioinformatics. Despite substantial progress, search methods based on information theory remain a standard in the field, even though the full validity of their underlying assumptions has only been tested in artificial settings. [...]
2009 - doi:10.1186/1471-2105-10-57
BMC bioinformatics, Vol. 10 (2009) , art. 57  
3.
13 p, 540.6 KB Volume entropy, weighted girths and stable balls on graphs / Balacheff, Florent Nicolas (University of Geneva. Department of Mathematics)
We prove new isoperimetric inequalities on graphs involving quantities linked with concepts from differential geometry. First, we bound from above the product of the volume entropy (defined as the log of the exponential growth rate of the universal cover) and the girth of weighted graphs in terms of their cyclomatic number. [...]
2007 - 10.1002/jgt.20236
Journal of Graph Theory, Vol. 55, Issue 4 (February 2007) , p. 291-305  
4.
9 p, 1.5 MB Depletion of two-level systems in highly stable glasses with different molecular ordering / Moratalla Martín, Manuel (Universidad Autónoma de Madrid) ; Rodríguez López, Marta (Universitat Autònoma de Barcelona. Departament de Física) ; Rodríguez Tinoco, Cristian (Institut Català de Nanociència i Nanotecnologia) ; Rodríguez-Viejo, Javier (Institut Català de Nanociència i Nanotecnologia) ; Jiménez Riobóo, Rafael J. (Instituto de Ciencia de Materiales de Madrid) ; Ramos, Miguel Ángel (Universidad Autónoma de Madrid. Departamento de Física de la Materia Condensada)
Recent findings of structural glasses with extremely high kinetic and thermodynamic stability have attracted much attention. The question has been raised as to whether the well-known, low-temperature "glassy anomalies" (attributed to the presence of two-level systems [TLS] and the "boson peak") persist or not in these ultrastable glasses of much lower configurational entropy. [...]
2023 - 10.1038/s42005-023-01398-4
Communications Physics, Vol. 6 (September 2023) , art. 274  
5.
15 p, 403.1 KB Fast and Efficient Entropy Coding Architectures for Massive Data Compression / Aulí Llinàs, Francesc (Universitat Autònoma de Barcelona. Departament d'Enginyeria de la Informació i de les Comunicacions)
The compression of data is fundamental to alleviating the costs of transmitting and storing massive datasets employed in myriad fields of our society. Most compression systems employ an entropy coder in their coding pipeline to remove the redundancy of coded symbols. [...]
2023 - 10.3390/technologies11050132
Technologies, Vol. 11, Issue 5 (September 2023) , art. 132  
6.
20 p, 385.5 KB Metabolismo energético de la Zona Metropolitana de Toluca, México / Montoya García, Dainiz Noray (Instituto Politécnico Nacional (Mèxic)) ; Adame Martínez, Salvador (Universidad Autónoma del Estado de México) ; Cadena-Vargas, Edel (Universidad Autónoma del Estado de México) ; Martínez Miranda, Verónica (Universidad Autónoma del Estado de México) ; Díaz Álvarez, Cristian Julián (Corporación Universitaria del Meta (Colòmbia))
La ZMT es una zona urbana, similar a una máquina térmica que cuya lógica de crecimiento, no respeta las leyes de la termodinámica, ya que los altos consumos de energéticos y su alta ineficiencia demuestran generación de entropía, manifestada en elevadas emisiones de contaminantes, movilidad deficiente, islas de calor y disminución de la calidad de vida de sus habitantes. [...]
The ZMT is an urban area, like a thermal machine whose growth logic does not respect the laws of thermodynamics, since the high energy consumption and its high inefficiency shows entropy generation, manifested in elevated emissions of pollutants, poor mobility, heat islands and decreased quality of life of its inhabitants. [...]
A ZMT é uma área urbana, semelhante a uma máquina térmica cuja lógica de crescimento não respeita as leis da termodinâmica, pois o alto consumo de energia e sua alta ineficiência demonstram a geração de entropia, manifestada em altas emissões de poluentes, mobilidade deficiente, calor ilhas e diminuição da qualidade de vida dos seus habitantes. [...]

2022
Revibec : revista de la Red Iberoamericana de Economia Ecológica, Vol. 35 Núm. 2 (2022) , p. 114-133 (Articles)  
7.
13 p, 1.7 MB Eina visual per la compressió d'imatges / Quintas Torra, Pau ; Bartrina Rapesta, Joan, dir. (Universitat Autònoma de Barcelona. Departament d'Enginyeria de la Informació i de les Comunicacions) ; Universitat Autònoma de Barcelona. Escola d'Enginyeria
La compressió d'imatges és una presència constant en el nostre dia a dia. Hi ha diversos llocs web que permeten tan.
La compresión de imágenes es una presencia constante en nuestro día a día. Hay diversos sitios web que permiten tanto la compresión como la reducción del peso de las imágenes. No obstante, ninguna de ellas te acompañan en el proceso de la compression, hecho que limita el aprendizaje del usuario. [...]
Image compression is a constant presence in our daily lives. There are various websites which allow the compression.

2023
Enginyeria Informàtica [958]  
8.
22 p, 364.3 KB Entropy function spaces and interpolation / Cerdà Martín, Joan Lluís (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Coll, Heribert (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Martín i Pedret, Joaquim (Universitat Autònoma de Barcelona. Departament de Matemàtiques)
We associate to every function space, and to every entropy function E, a scale of spaces Λp,q (E) similar to the classical Lorentz spaces Lp,q. Necessary and sufficient conditions for they to be normed spaces are proved, their role in real interpolation theory is analyzed, and a number of applications to functional and interpolation properties of several variants of Lorentz spaces and entropy spaces are given.
2005 - 10.1016/j.jmaa.2004.09.026
Journal of mathematical analysis and applications, Vol. 304, Issue 1 (April 2005) , p. 269-295  
9.
10 p, 4.8 MB Structure, mechanical properties and nanocrystallization of (FeCoCrNi)-(B,Si) high-entropy metallic glasses / Panahi, S. Leila (Universitat Politècnica de Catalunya. Departament de Física) ; Fornell Beringues, Jordina (Universitat Autònoma de Barcelona. Departament de Física) ; Popescu, Catalin (ALBA Laboratori de Llum de Sincrotró) ; Pineda, Eloi (Universitat Politècnica de Catalunya. Departament de Física) ; Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ; Bruna, Pere (Universitat Politècnica de Catalunya. Institut de Tècniques Energètiques)
New high-entropy metallic glasses were produced by adding B and Si to the Fe25Co25Cr25Ni25 high entropy alloy. Extremely hard materials were obtained by inducing structural relaxation and nanocrystallization in the original amorphous metals. [...]
2022 - 10.1016/j.intermet.2021.107432
Intermetallics, Vol. 141 (February 2022) , art. 107432  
10.
17 p, 1.3 MB Agency Contracts under Maximum-Entropy / Gutiérrez, Oscar (Universitat Autònoma de Barcelona. Departament d'Economia de l'Empresa) ; Salas-Fumás, Vicente (Universidad de Zaragoza. Departamento de Dirección y Organización de Empresas)
This article proposes the application of the maximum-entropy principle (MEP) to agency contracting (where a principal hires an agent to make decisions on their behalf) in situations where the principal and agent only have partial knowledge on the probability distribution of the output conditioned on the agent's actions. [...]
2021 - 10.3390/e23080957
Entropy, Vol. 23 (july 2021)  

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