Listar por tema "Computation theory"
Mostrando ítems 1-20 de 42
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Bayesian damage characterization based on probabilistic model of scattering coefficients and hybrid wave finite element model scheme
(2019)Ultrasonic Guided Wave(GW) has been proven to be sensitive to small damage. Motivated by the fact that the quantitative relationship between wave scattering and damage intensity can be described by scattering properties, ... -
Bayesian inference for damage identification based on analytical probabilistic model of scattering coefficient estimators and ultrafast wave scattering simulation scheme
(2020)Ultrasonic Guided Waves (GW) actuated by piezoelectric transducers installed on structures have proven to be sensitive to small structural defects, with acquired scattering signatures being dependent on the damage type. ... -
Bilevel programming solution algorithms for optimal price-bidding of energy producers in multi-period day-ahead electricity markets with non-convexities
(2021)We consider the problem of devising optimal price-offers (bids) for an energy producer participating in a multi-period day-ahead electricity market which exhibits non-convexities due to the discrete nature of the generation ... -
Calculation of the hubble universe expansion constant by analyzing observational data: An exploratory teaching proposal based on STEM epistemology
(2020)Approaches to STEM epistemology are related to the so-called 'Integrated STEM Education Curriculum integration of STEM contents based in constructivism theories of learning as a context to implement the STEM epistemology. ... -
Collagen fibril diameter distribution affects permeability of ligament tissue: A computational study on healthy and injured tissues
(2020)Background and objective In a vascular or hypovascular tissues, elements required for maintaining tissue functions are recruited through diffusion, which is highly related with the permeability of the extracellular matrix ... -
Computation of the adjoint matrix
(2006)The best method for computing the adjoint matrix of an order n matrix in an arbitrary commutative ring requires O(nβ+1/3 log n log log n) operations, provided that the complexity of the algorithm for multiplying two matrices ... -
Computations in modules over commutative domains
(2007)This paper is a review of results on computational methods of linear algebra over commutative domains. Methods for the following problems are examined: solution of systems of linear equations, computation of determinants, ... -
Coupled FEA Model with Continuum Damage Mechanics for the Degradation of Polymer-based coatings on Drug-Eluting Stents
(2021)Drug-Eluting Stents (DES) are commonly used in Coronary angioplasty procedures to reduce the phenomenon of restenosis. Numerical simulations are proven to be a useful tool to the Bioengineering community in computing the ... -
Coupled numerical simulation of low-cycle fatigue damage in metal components
(2021)A coupled cyclic plasticity-damage model is implemented for simulating low-cycle fatigue in metal components. Constitutive relations account for J2-flow theory with nonlinear kinematic/isotropic hardening, coupled with ... -
CPU provisioning algorithms for service differentiation in cloud-based environments
(2015)This work focuses on the design, analysis and evaluation of Dynamic Weighted Round Robin (DWRR) algorithms that can guarantee CPU service shares in clusters of servers. Our motivation comes from the need to provision ... -
Distributed Localized Contextual Event Reasoning under Uncertainty
(2017)We focus on Internet of Things (IoT) environments where sensing and computing devices (nodes) are responsible to observe, reason, report, and react to a specific phenomenon. Each node (e.g., an unmanned vehicle or an ... -
Effect of vibrational degrees of freedom on the heat transfer in polyatomic gases confined between parallel plates
(2016)Conductive stationary heat transfer through rarefied nonpolar polyatomic gases, confined between parallel plates maintained at different temperatures, is investigated. It is assumed that gas molecules possess both rotational ... -
An evaluation of models and computational approaches for the barrier properties of coatings containing flakes of high aspect ratio
(2019)We report on the results of a comprehensive two-dimensional computational study of diffusion across disordered flake composites. Our objective is (1) the evaluation of existing literature models for the effect of flake ... -
A fast Bayesian inference scheme for identification of local structural properties of layered composites based on wave and finite element-assisted metamodeling strategy and ultrasound measurements
(2020)Reliable verification and evaluation of the mechanical properties of a layered composite ensemble are critical for industrially relevant applications, however it still remains an open engineering challenge. In this study, ... -
Federated Learning Protocols for IoT Edge Computing
(2022)In this article, we provide a set of federated learning (FL) protocols for future Internet architectures, which integrate the edge computing with the Internet of Things (IoT) known as 'IoT edge computing.' The proposed ... -
Finite element methods for piezoelectricity and flexoelectricity with fracture mechanics applications
(2017)Flexoelectricity is the coupling of polarization to strain gradients. This effect is size-dependent and is most prominent in nanoscale structures in which gradients are large. In our previous work, we have established a ... -
Gathering of robots in a grid with mobile faults
(2019)The gathering of two or more agents in a graph is an important problem in the area of distributed computing and has been extensively studied especially for the fault free scenario. In this paper we consider the mobile ... -
Hierarchical Bayesian operational modal analysis: Theory and computations
(2020)This paper presents a hierarchical Bayesian modeling framework for the uncertainty quantification in modal identification of linear dynamical systems using multiple vibration data sets. This novel framework integrates the ... -
Hierarchical Bayesian Uncertainty Quantification for a Model of the Red Blood Cell
(2021)Simulations of blood flows in microfluidic devices and physiological systems are gaining importance in complementing experimental and clinical studies. The predictive capabilities of these simulations hinge on the parameters ... -
In-memory k nearest neighbor GPU-based query processing
(2020)The k Nearest Neighbor (k-NN) algorithm is widely used for classification in several application domains (medicine, economy, entertainment, etc.). Let a group of query points, for each of which we need to compute the k-NNs ...
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