Exploració per tema "Complex systems"
Ara es mostren els items 1-20 de 20
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A fast and efficient algorithm to identify clusters in networks
(2010-11-01)
Article
Accés restringit per política de l'editorialA characteristic feature of many relevant real life networks, like the WWW, Internet, transportation and communication networks, or even biological and social networks, is their clustering structure. We discuss in this ... -
A Solution to the problem of collision detection in large environments
(2000-06)
Report de recerca
Accés obertCollision detection between several objects in a closed space is an interesting research topic in all those areas where objects must not penetrate one another, such as Computer Graphics, Computer Vision, Virtual ... -
Agent-based framework for simulation of networked systems with adaptive modularity
(Universitat Politècnica de Catalunya, 2016-10-25)
Treball Final de Grau
Accés restringit per decisió de l'autor
Realitzat a/amb: Cornell UniversityThis Bachelor Thesis aims to draw a first approach for building a highly versatile tool to simulate systems with adaptive modularity, that is, systems that are able to adapt their functional capabilities according to the ... -
Amplitude equation approach to spatiotemporal dynamics of cardiac alternans
(American Physical Society, 2007-11-30)
Article
Accés obertAmplitude equations are derived that describe the spatiotemporal dynamics of cardiac alternans during periodic pacing of one- B. Echebarria and A. Karma, Phys. Rev. Lett. 88, 208101 2002 and twodimensional homogeneous ... -
Collision detection using multiresolution Kdtrees
(2001-07)
Report de recerca
Accés obertCollision detection between several objects in a closed space is of fundamental importance in all those areas where objects must not penetrate one another, such as computer grafics, robotics, motion planning, computer ... -
Collision detection: models and algorithms
(1998-02)
Report de recerca
Accés obertCollision detection between several objects in a closed space is an interesting research topic in all those areas where objects must not penetrate one another, such as Computer Graphics, Computer Vision, Virtual ... -
Complex systems in the spotlight: next steps after the 2021 Nobel Prize in Physics
(2023-03-01)
Article
Accés obertThe 2021 Nobel Prize in Physics recognized the fundamental role of complex systems in the natural sciences. In order to celebrate this milestone, this editorial presents the point of view of the editorial board of JPhys ... -
Cumulative merging percolation and the epidemic transition of the susceptible-infected-susceptible model in networks
(2020-03-24)
Article
Accés obertWe consider cumulative merging percolation (CMP), a long-range percolation process describing the iterative merging of clusters in networks, depending on their mass and mutual distance. For a specific class of CMP processes, ... -
Data-in-the-cloud city: análisis proactivo de la información digital de la ciudad
(Department of Civil Engineering of the University of Coimbra and e-GEO, Research Center in Geography and Regional Planning of the Faculty of Social Sciences and Humanities of the Nova University of Lisbon, 2011-10)
Text en actes de congrés
Accés obert -
Design of highly synchronizable and robust networks
(2010-11)
Article
Accés restringit per política de l'editorialIn this paper, the design of highly synchronizable, sparse and robust dynamical networks is addressed. Better synchronizability means faster synchronization of the oscillators, sparsity means a low ratio of links per ... -
Ferrofluidic Couette flow under the influence of versatile magnetic fields
(2022)
Comunicació de congrés
Accés obertRepresenting a complex fluid, the field of ferrofluid research developed quickly in different branches of Physics, Chemistry and Engineering since the first successful production of stable ferrofluids in the early 1960s. ... -
Flow dynamics between two concentric counter-rotating porous cylinders with radial through-flow
(2022)
Comunicació de congrés
Accés obertWe investigate the impact of radial mass flux on Taylor-Couette flow in counter-rotating configuration, in which a Hopf bifurcation gives rise to branches of nontrivial solutions. Using direct numerical simulation we ... -
Full analysis of small hypercycles with short-circuits in prebiotic evolution
(2017-01-05)
Article
Accés obertIt is known that hypercycles are sensitive to the so-called parasites and short-circuits. While the impact of parasites has been widely investigated for well-mixed and spatial hypercycles, the effect of short-circuits in ... -
Global atmospheric dynamics investigated by using Hilbert frequency analysis
(2016-11-16)
Article
Accés obertThe Hilbert transform is a well-known tool of time series analysis that has been widely used to investigate oscillatory signals that resemble a noisy periodic oscillation, because it allows instantaneous phase and frequency ... -
Hierarchical structuring of scenes with MKtrees
(2005-01)
Report de recerca
Accés obertThe location of an object or parts of an object in huge environments is of fundamental importance in several research areas. The problem to locate an object or parts of an object in very complex systems (environments ... -
Planar unclustered graphs to model technological and biological networks
(2009-02-25)
Article
Accés obertMany real life networks present an average path length logarithmic with the number of nodes and a degree distribution which follows a power law. Often these networks have also a modular and self-similar structure and, in ... -
Robust zonotopic set-membership approach for model-based prognosis: application on linear parameter-varying systems
(2021)
Text en actes de congrés
Accés obertA robust set-membership Prognostics and Health Management (PHM) methodology is presented in this paper. The key advantages of the set-membership approach for states and parameters estimation are enhanced by employing ... -
Semiclassical theory predicts stochastic ghosts scaling
(Royal Society, 2023-05)
Article
Accés restringit per política de l'editorialSlowing down occurs in dynamical systems close to bifurcations or phase transitions. The time length (t) of ghost transients close to a saddle-node bifurcation in deterministic systems follows t~|¿-¿c|-1/2, ¿ being the ... -
Spatial dynamics of Hepatitis B virus with its δ-satellite and defective interfering particles
(Universitat Politècnica de Catalunya, 2020-10)
Projecte Final de Màster Oficial
Accés obertThis project provides an indepth analysis of the spatio-temporal dynamics of the system Hepatitis B Virus (HBV) - Hepatitis Delta Virus (HDV) - Defective interfering particles (DIPs). HDV is a virus satellite that co-infects ... -
Spin lattices of walking droplets
(Universitat Politècnica de Catalunya, 2018-06-25)
Treball Final de Grau
Accés restringit per decisió de l'autorPedro Sáenz et al. [1] recently discovered the spontaneous emergence of collective behavior in spin lattices of droplets walking on a vibrating fluid surface. This study considers the role of the droplet?s vertical dynamics ...
