The HYDRA project develops middleware for networked embedded systems that allows developers to create ambient intelligence applications based on wireless devices and sensors. Through its unique combination of service-oriented architecture (SoA) a semantic-based model driven architecture, will enable the development generic services open standards.

Abstract The downstream effects of Valparaíso Reservoir (Río Tera, north‐western Spain) on macrophyte, macroinvertebrate and fish communities are examined by comparing their respective structures before (1986) after (1990‐1991) the creation this hydropower impoundment. A single sampling station was selected 2.4 km below dam. Macrophytes significantly ( p < 0.05) decreased total biomass, although species composition remained dominated two Myriophyllum verticillatum Ranunculus fluitans )....

This work focuses on the coupling of trimmed shell patches using Isogeometric Analysis, based higher continuity splines that seamlessly meet

Abstract This contribution presents a model order reduction framework for real-time efficient solution of trimmed, multi-patch isogeometric Kirchhoff-Love shells. In several scenarios, such as design and shape optimization, multiple simulations need to be performed given set physical or geometrical parameters. step can computationally expensive in particular real world, practical applications. We are interested parameters take advantage the flexibility splines representing complex...

We present a novel isogeometric method, namely the Immersed Boundary-Conformal Method (IBCM), that features layer of discretization conformal to boundary while employing simple background mesh for remaining domain. In this manner, we leverage geometric flexibility immersed method with advantages discretization, such as intuitive control resolution around boundary, higher accuracy per degree freedom, automatic satisfaction interface kinematic conditions, and ability strongly impose Dirichlet...

Summary This paper addresses the overwhelming computational resources needed with standard numerical approaches to simulate architected materials. Those multiscale heterogeneous lattice structures gain intensive interest in conjunction improvement of additive manufacturing as they offer, among many others, excellent stiffness‐to‐weight ratios. We develop here a dedicated HPC solver that benefits from specific nature underlying problem order drastically reduce costs (memory and time) for full...

We present the design of an object oriented general purpose library for isogeometric analysis, where mathematical concepts method and their relationships are directly mapped into classes interactions. The encapsulation interacting building blocks gives flexibility to use in a wide range scientific areas applications. provide precise framework lot loose, available information regarding implementation method, also discuss similarities differences between this finite element method. describe...

Related DatabasesWeb of Science You must be logged in with an active subscription to view this.Article DataHistorySubmitted: 13 December 2019Accepted: 02 October 2020Published online: 25 January 2021KeywordsBoolean operations, union, trimming, overlapping meshes, stabilized methods, isogeometric methodsAMS Subject Headings65N12, 65N15, 65N20, 65N30, 65N85Publication DataISSN (print): 1064-8275ISSN (online): 1095-7197Publisher: Society for Industrial and Applied MathematicsCODEN: sjoce3

This paper presents a novel method for solving partial differential equations on three-dimensional CAD geometries by means of immersed isogeometric discretizations that do not require quadrature schemes. It relies newly developed technique the evaluation polynomial integrals over spline boundary representations is exclusively based analytical computations. First, through consistent approximation step, finite element operators Galerkin are transformed into involving only integrands. Then,...

We present a novel method to perform numerical integration over curved polyhedra enclosed by high-order parametric surfaces. Such polyhedron is first decomposed into set of triangular and/or rectangular pyramids, whose certain faces correspond the given Each pyramid serves as an cell with geometric mapping from standard parent domain (e.g., unit cube), where tensor-product Gauss quadrature adopted. As no constraint imposed on decomposition, resulting pyramids may intersect themselves, and...

Abstract In this paper we consider a unilateral contact problem without friction between rigid body and deformable one in the framework of isogeometric analysis. We present theoretical analysis mixed problem. For displacement, use pushforward nonuniform rational B-spline space degree $p$ for Lagrange multiplier, $p-2$. These choices ensure proof an inf–sup condition so on, stability method. distinguish noncontact sets to avoid classical geometrical hypothesis set. An optimal priori error...