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Adaptive phase-field modeling of heterogeneous materials
(Universitat Politècnica de Catalunya, 2023-06)
Treball Final de Grau
Accés obertComprendre el comportament de les fractures és crucial per optimitzar el disseny d'estructures i components d'enginyeria, des de les infraestructures civils fins als components d'aeronaus. El model "phase-field" s'ha tornat ... -
Adaptive PI control with robust variable structure anti-windup strategy for systems with rate-limited actuators: application to compression systems
(2020-03-01)
Article
Accés obertIn this paper, an adaptive proportional-integral (PI) control strategy for nonlinear systems with constrained actuators is discussed. In particular, a variable-structure anti-windup strategy that can be retro fitted onto ... -
Adaptive points to estimate the Lebesgue constant on the simplex
(Barcelona Supercomputing Center, 2022-05)
Text en actes de congrés
Accés obertWe present a novel adaptive sampling method to estimate the Lebesgue constant of nodal sets in n-dimensional simplices. The main application of this estimation is to assess the interpolation capabilities of a nodal ... -
Adaptive power control of wave energy converters for maximum power absorption under irregular sea-state conditions
(Institute of Electrical and Electronics Engineers (IEEE), 2015)
Text en actes de congrés
Accés obertThis paper proposes a novel wave energy converter (WEC) control technique based on an adaptive vector controller for maximum power absorption of the wave energy resource. The proposed controller arises as a suitable solution ... -
Adaptive power shifting for power-constrained heterogeneous systems
(Institute of Electrical and Electronics Engineers (IEEE), 2023-03-01)
Article
Accés obertThe number and heterogeneity of compute devices, even within a single compute node, has been steadily on the rise. Since all systems must operate under a power cap, the number of discrete devices that can run simultaneously ... -
Adaptive pre-distortion for nonlinear high power amplifiers in OFDM systems
(Universitat Politècnica de Catalunya, 2004-07-22)
Tesi
Accés obertEl acelerado crecimiento de las comunicaciones a través de plataformas de transmisión en banda ancha por vía alámbrica e inalámbrica, sumado al uso cada vez más extenso de modulaciones de amplitud no constante que, debido ... -
Adaptive prediction and bit-assignment in subband coding of speech
(1985)
Text en actes de congrés
Accés obertThe combination of time-domain harmonic scaling (TDHS) and sub-band coding (SBC) provides an encoding approach which allows 9.6 Kb/s speech encoding with good communication quality. Starting from this structure, this paper ... -
Adaptive prediction models for data center resources utilization estimation
(2019-12)
Article
Accés obertAccurate estimation of data center resource utilization is a challenging task due to multi-tenant co-hosted applications having dynamic and time-varying workloads. Accurate estimation of future resources utilization helps ... -
Adaptive predictive control for peripheral equipment management to enhance energy efficiency in smart manufacturing systems
(2021)
Article
Accés obertThe importance of implementing energy efficiency methodologies in industrial environments has increased considerably in the last decade given the high energy costs and environmental impact (e.g., greenhouse gas emissions). ... -
Adaptive predictive control of a base-isolated hysteretic system
(2017)
Text en actes de congrés
Accés restringit per política de l'editorialThis article proposes an adaptive predictive control design technique to mitigate the displacement in a hysteretical base-isolated system seismically perturbed. The obtained predictive control law is based on the ... -
Adaptive predictive robust control for fuel cells hybrid vehicles
(2010)
Text en actes de congrés
Accés obertThe transient behavior of a Polymer Electrolyte Membrane Fuel Cell System (PEMFCS) under an efficient Adaptive Predictive Control with Robust Filter (APCWRF) is analyzed. This control scheme is tested to evaluate its ... -
Adaptive principal component analysis for online reduced order parameter extraction in PA behavioral modeling and DPD linearization
(Institute of Electrical and Electronics Engineers (IEEE), 2018)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper presents a new method, based on the adaptive principal component analysis (APCA) technique, that iteratively creates and updates an orthogonal data matrix used to estimate the parameters of power amplifier (PA) ... -
Adaptive proactive reconfiguration: a technique for process variability and aging aware SRAM cache design
(2014)
Article
Accés obertNanoscale circuits are subject to a wide range of new limiting phenomena making essential to investigate new design strategies at the circuit and architecture level to improve its performance and reliability. Proactive ... -
Adaptive radio resource management for ofdma-based macro- and femtocell networks
(Universitat Politècnica de Catalunya, 2011-07-06)
Tesi
Accés obertLas demandas y expectativas de los usuarios y operadores móviles crecen sin parar y, consecuentemente, los nuevos estándares han incorporado tecnologías de acceso de radio cada vez más eficientes. Las especificaciones ... -
Adaptive real time multimedia transmission
(Universitat Politècnica de Catalunya, 2017-01)
Treball Final de Grau
Accés obertEsta tesis es una propuesta de un sistema de streaming de vídeo en directo que utiliza varias tecnologías actuales y, por otro lado, se beneficia del mundo del software libre y de código abierto. El propósito de desarrollar ... -
Adaptive reconstruction of radar reflectivity in clutter-contaminated areas by accounting for the space-time variability
(Elsevier, 2014-11-12)
Article
Accés obertIdentification and elimination of clutter is necessary for ensuring data quality in radar Quantitative Precipitation Estimates (QPE). For uncorrected scanning reflectivity after signal processing, the removed areas have ... -
Adaptive reduced basis strategy based on goal oriented error assessment for stochastic problems
(2012-06)
Article
Accés obertIn the framework of stochastic non-intrusive finite element modeling, a common practice is using Monte Carlo simulation. The main drawback of this approach is the computational cost, because it requires computing a large ... -
Adaptive refinement for phase-field models of brittle fracture based on Nitsche's method
(Springer, 2020-03-18)
Article
Accés obertA new adaptive refinement strategy for phase-field models of brittle fracture is proposed. The approach provides a computationally efficient solution to the high demand in spatial resolution of phase-field models. The ... -
Adaptive refinement technique for discrete static models of fracture
(CIMNE, 2015)
Text en actes de congrés
Accés obertThe discrete static models are advantageneously used for fracture simulations in heterogeneous materails. These simulations are often extremely computationally demanding. The contribution aims to reduction of computationa ... -
Adaptive remeshing for industrial unsteady CFD
(CIMNE, 2015)
Text en actes de congrés
Accés obertFLUSEPA is an advanced simulation tool which performs a large panel of aerodynamicstudies. It is the unstructured finite-volume solver developed by Airbus Defence& Space tocalculate compressible, multidimensional, unsteady, ...