Exploració per tema "Numerical analysis"
Ara es mostren els items 633-652 de 753
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Real-time lattice boltzmann shallow waters method for breaking wave simulations
(2014)
Article
Accés obertWe present a new approach for the simulation of surfacebased fluids based in a hybrid formulation of Lattice Boltzmann Method for Shallow Waters and particle systems. The modified LBM can handle arbitrary underlying terrain ... -
Recent advances in optimization techniques for statistical tabular data protection
(2011-03)
Report de recerca
Accés obertOne of the main services of National Statistical Agencies (NSAs) for the current Information Society is the dissemination of large amounts of tabular data, which is obtained from microdata by crossing one or more categorical ... -
Reduction des machines séquentielles non déterministes
(Universitat Politècnica de Barcelona. Centre de Càlcul, 1982-06)
Article
Accés obertEn partant de la notion classique de machine séquentielle incomplètement spécifiée, on introduit une généralisation de ce modèle, sous la forme de tables d'états qui associent à chaque état présent et à chaque signal ... -
Refficientlib: an efficient load-rebalanced adaptive mesh refinement algorithm for high-performance computational physics meshes
(2017-03)
Article
Accés obertIn this paper we present a novel algorithm for adaptive mesh refinement in computational physics meshes in a distributed memory parallel setting. The proposed method is developed for nodally based parallel domain partitions ... -
Refinament dinàmic per un model phase-field del problema d'Stefan
(Universitat Politècnica de Catalunya, 2022-01)
Treball Final de Grau
Accés obertEl problema d'Stefan simula l'evolució de la interfície entre dues fases d'un material, sòlid i líquid. S'usa el model phase-field per a poder resoldre aquest problema sense haver de controlar explícitament l'evolució de ... -
Relación entre el parámetro flecha-luz y la carga crítica de pandeo lateral para arcos parabólicos biempotrados bajo diferentes hipótesis de cálculo
(Universitat Politècnica de Catalunya. CIMNE, 2013)
Article
Accés obertEn este artículo se proponen gráficas que relacionan los parámetros f/L y λ = qL3 /EIy para arcos biempotrados con diferentes secciones transversales y para diferentes hipótesis de cálculo. Para ello es necesario ... -
Relaxing the roles of corners in BDDC by perturbed formulation
(Springer, 2017)
Capítol de llibre
Accés restringit per política de l'editorialThis book is a collection of papers presented at the 23rd International Conference on Domain Decomposition Methods in Science and Engineering, held on Jeju Island, Korea on July 6-10, 2015. Domain decomposition methods ... -
Research on rational layout of strut arms of tainter gate in vertical frame
(Universitat Politècnica de Catalunya. CIMNE, 2018)
Article
Accés obertThe overall stability of hydraulic tainter steel gate decrease seriously, and they are caused by improper structure layout of the two-way eccentric compression of struts. Chinese and American specification method, structural ... -
Resolución numérica de las ecuaciones del movimiento de edificios de varias plantas con no linealidades severas
(Universitat Politècnica de Catalunya. CIMNE, 2014)
Article
Accés obertEste artículo presenta un algoritmo para resolver las ecuaciones del movimiento de edificios de varias plantas que incorporan disipadores de energía friccionales como protección sismorresistente. El comportamiento de los ... -
Respuesta dinámica de edificaciones producida por campos de ondas incidentes considerando la interacción suelo-estructura
(Universitat Politècnica de Catalunya. CIMNE, 2014)
Article
Accés obertEn este artículo se presentan 2 metodologías basadas en las formulaciones del Método de los Elementos de Contorno y del Método de los Elementos Finitos para estudiar el efecto de la interacción suelo-estructura en el ... -
Robin-Robin preconditioned Krylov methods for fluid-structure interaction problems
(2008-08-14)
Article
Accés obertIn this work we propose a Robin-Robin preconditioner combined with Krylov iterations for the solution of the interface system arising in fluid-structure interaction (FSI) problems. It can be seen as a partitioned FSI ... -
Robust design methods in aerospace engineering
(2008-11)
Report de recerca
Accés obertThis document is an introduction to some important methodologies that have been developed in robust design in aerospace engineering. After describing the concept of robustness and uncertainty, multipoint, minimax, expected ... -
SAR Interferometric phase noise reduction using wavelet transform
(IEE-INST ELEC ENG, 2001-05-31)
Article
Accés obertThe problem of synthetic aperture radar interferometric phase noise reduction is addressed. A new technique based on discrete wavelet transforms is presented. This technique guarantees high resolution phase estimation ... -
Scalability evaluation of forecasting methods applied to bicycle sharing systems
(Elsevier Ltd, 2023-10)
Article
Accés obertPublic Bicycle Sharing Systems have spread in many cities for the last decade. The need of analysis tools to predict the behavior or estimate balancing needs has fostered a wide set of approaches that consider many variables. ... -
Second order convex maximum entropy approximants with applications to high order PDE
(2013-04-13)
Article
Accés obertWe present a new approach for second order maximum entropy (max-ent) meshfree approximants that produces positive and smooth basis functions of uniform aspect ratio even for non-uniform node sets, and prescribes robustly ... -
Second-order parameter estimation
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2005-07-31)
Article
Accés obertThis work provides a general framework for the design of second-order blind estimators without adopting any approximation about the observation statistics or the a priori distribution of the parameters. The proposed ... -
Segmenting trajectories: A framework and algorithms using spatiotemporal criteria
(2011)
Article
Accés obertIn this paper we address the problem of segmenting a trajectory based on spatiotemporal criteria. We require that each segment is homogeneous in the sense that a set of spatiotemporal criteria are fulfilled. We define ... -
Selección óptima bajo criterios múltiples de materiales refractarios y aislantes para cazuelas metalúrgicas
(Universitat Politècnica de Catalunya. CIMNE, 2016)
Article
Accés obertHasta el presente, el problema de la selección de materiales refractarios y aislantes no se ha tratado, en toda su complejidad, como una tarea de optimización bajo criterios múltiples, sino básicamente como un problema de ... -
Selection of composite binary endpoints in clinical trials
(2017-10-12)
Article
Accés obertThe choice of a primary endpoint is an important issue when designing a clinical trial. It is common to use composite endpoints as a primary endpoint because it increases the number of observed events, captures more ... -
Seleção de topologias ótimas de estruturas elásticas 2D com restrição de tensão – via Smooth Evolutionary Structural Optimization
(Universitat Politècnica de Catalunya. CIMNE, 2014)
Article
Accés obertO artigo aborda a otimização topológica em problemas de elasticidade plana linear considerando a minimização do volume com restrição de tensão e empregando um índice de desempenho como monitoramento para o encontro da ...