Results 21 to 30 of about 567 (213)

Element subdivision technique for coupling-matrix-free iterative s-version FEM and investigation of sufficient element subdivision

open access: yesMechanical Engineering Journal, 2016
In s-version finite element method (s-FEM), a local mesh is superposed on a global mesh, and they are solved monolithically. The local mesh represents the local feature such as a hole, whereas the global mesh does the shape of a structure.
Yosuke YUMOTO   +2 more
doaj   +1 more source

A NEW MULTI-RESOLUTION ALGORITHM TO STORE AND TRANSMIT COMPRESSED DTM [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
WebGIS and virtual globes allow DTMs distribution and three dimensional representations to the Web users' community. In these applications, the database storage size represents a critical point. DTMs are obtained by some sampling or interpolation on the
L. Biagi, M. Brovelli, G. Zamboni
doaj   +1 more source

Modeling of Coalmine Methane Flows to Estimate the Spacing of Primary Roof Breaks

open access: yesMining, 2022
The global challenge for the mining sector is the problem of “decarbonization” of coal mining. The modeling of emission flows of coalmine methane is stipulated by the need to prove the environmental effect of the implemented technological changes.
Vladimir Sergeevich Brigida   +2 more
doaj   +1 more source

LOCAL INTERPOLATION AND APPROXIMATION IN TASKS OF HEURISTIC SYNTHESIS OF DIGITAL FILTER

open access: yesРоссийский технологический журнал, 2018
The article has an overview character with elements of generalization, but at the same time it includes information brought to the level of immediate practical implementation.
V. N. Isakov, P. I. Timoshenko
doaj   +1 more source

Sparse kernel density construction using orthogonal forward regression with leave-one-out test score and local regularization [PDF]

open access: yes, 2004
This paper presents an efficient construction algorithm for obtaining sparse kernel density estimates based on a regression approach that directly optimizes model generalization capability.
Harris, C. J.   +3 more
core   +1 more source

Analysis of Two Dimensional Steady-State Heat Conduction Problems by MLPG Method [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2011
Numerical solutions obtained by the Meshless local Petrov–Galerkin (MLPG) method are presented for two-dimensional steady-state heat conduction problems.
GholamHosein Baradaran   +1 more
doaj  

Surrogate modeling approximation using a mixture of experts based on EM joint estimation [PDF]

open access: yes, 2010
An automatic method to combine several local surrogate models is presented. This method is intended to build accurate and smooth approximation of discontinuous functions that are to be used in structural optimization problems.
Dimitri Bettebghor   +9 more
core   +1 more source

Oxygen and hydrogen stable isotope ratios of bulk needles reveal the geographic origin of Norway spruce in the European Alps. [PDF]

open access: yesPLoS ONE, 2015
Tracking timber is necessary in order to prevent illegal logging and protect local timber production, but there is as yet no suitable analytical traceability method. Stable isotope ratios in plants are known to reflect geographical variations.
Yuri Gori   +3 more
doaj   +1 more source

Exact least squares interpolation: Korovkin-type convergence results and applications in the context of the numerical approximation of conservation laws [PDF]

open access: yes, 2009
In den frühen 1980er Jahren veröffentlichten Peter Lancaster und Kestutis Salkauskas die so genannte moving least squares interpolation, eine Methode zur glatten Interpolation von beliebig verteilten multivariaten Daten.
Nowak, Oliver
core   +1 more source

An updated Gappy-POD to capture non-parameterized geometrical variation in fluid dynamics problems

open access: yesAdvanced Modeling and Simulation in Engineering Sciences, 2022
In this work, we propose a new method to fill the gap within an incomplete turbulent and incompressible data field in such a way to satisfy the topological and intensity changes of the fluid flow after a non-parameterized geometrical variation in the ...
Nissrine Akkari   +3 more
doaj   +1 more source

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