Results 21 to 30 of about 658,337 (286)

Basic principles of mixed Virtual Element Methods [PDF]

open access: yesESAIM: Mathematical Modelling and Numerical Analysis, 2014
The aim of this paper is to give a simple, introductory presentation of the extension of the Virtual Element Method to the discretization of H(div)-conforming vector fields (or, more generally, of (n-1)-Cochains). As we shall see, the methods presented here can be seen as extensions of the so-called BDM family to deal with more general element ...
F Brezzi, RS Falk, LD Marini
openaire   +4 more sources

MIXED REALITY CONTENT ALIGNMENT IN MONUMENTAL ENVIRONMENTS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Mixed reality provides on-the-spot and real-time data access capabilities by making virtual models and information more intuitive and accessible.
S. Teruggi, F. Fassi
doaj   +1 more source

Virtual Element Methods for hyperbolic problems on polygonal meshes [PDF]

open access: yes, 2016
In the present paper we develop the Virtual Element Method for hyperbolic problems on polygonal meshes, considering the linear wave equations as our model problem. After presenting the semi-discrete scheme, we derive the convergence estimates in H^1 semi-
Vacca, Giuseppe
core   +1 more source

The Virtual Element Method with curved edges [PDF]

open access: yesESAIM: Mathematical Modelling and Numerical Analysis, 2019
In this paper we initiate the investigation of Virtual Elements with curved faces. We consider the case of a fixed curved boundary in two dimensions, as it happens in the approximation of problems posed on a curved domain or with a curved interface. While an approximation of the domain with polygons leads, for degree of accuracy k≥2, to a sub-optimal ...
Beirão da Veiga, L, Russo, A, Vacca, G
openaire   +6 more sources

Virtual Enriching Operators [PDF]

open access: yes, 2019
We construct bounded linear operators that map $H^1$ conforming Lagrange finite element spaces to $H^2$ conforming virtual element spaces in two and three dimensions.
Brenner, Susanne C., Sung, Li-yeng
core   +3 more sources

Impact of Personalized Avatars and Motion Synchrony on Embodiment and Users’ Subjective Experience: Empirical Study

open access: yesJMIR Serious Games, 2022
BackgroundEmbodiment through a virtual avatar is a key element for people to feel that they are in the virtual world. ObjectiveThis study aimed to elucidate the interaction between 2 methods of eliciting embodiment ...
Myeongul Jung   +3 more
doaj   +1 more source

Thinned Virtual Array for Cramer Rao Bound Optimization in MIMO Radar

open access: yesInternational Journal of Antennas and Propagation, 2021
By transmitting multiple independent waveforms at the transmit side and processing echoes of spatial targets at the receive side, Multiple Input Multiple Output (MIMO) radar enjoys virtual array aperture expansion and more degree of freedom (DOF), both ...
Xia Li, Buhong Wang
doaj   +1 more source

Virtual Elements for the Navier-Stokes problem on polygonal meshes [PDF]

open access: yes, 2017
A family of Virtual Element Methods for the 2D Navier-Stokes equations is proposed and analysed. The schemes provide a discrete velocity field which is point-wise divergence-free.
da Veiga, L. Beirão   +2 more
core   +2 more sources

Capturing critical data elements in Juvenile Idiopathic Arthritis: initiatives to improve data capture

open access: yesPediatric Rheumatology Online Journal, 2022
Background Documentation of critical data elements is a focus of the Pediatric Rheumatology Care and Outcomes Improvement Network to aid in clinical care and research for patients with juvenile idiopathic arthritis.
Meghan E. Ryan   +13 more
doaj   +1 more source

DEM investigation of the influence of particulate properties and operating conditions on the mixing process in rotary drums: Part 1-Determination of the DEM parameters and calibration process [PDF]

open access: yes, 2020
This paper's goal was to select methods and a calibration procedure which would lead to the determination of relevant parameters of a discrete element method (DEM) and virtual material creation.
Hlosta, Jakub   +5 more
core   +1 more source

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