Results 21 to 30 of about 543,871 (306)

Constrained Dynamic Mode Decomposition

open access: yesIEEE Transactions on Visualization and Computer Graphics, 2022
Frequency-based decomposition of time series data is used in many visualization applications. Most of these decomposition methods (such as Fourier transform or singular spectrum analysis) only provide interaction via pre- and post-processing, but no means to influence the core algorithm.
Tim Krake   +3 more
openaire   +2 more sources

A characteristic dynamic mode decomposition [PDF]

open access: yesTheoretical and Computational Fluid Dynamics, 2019
Temporal or spatial structures are readily extracted from complex data by modal decompositions like Proper Orthogonal Decomposition (POD) or Dynamic Mode Decomposition (DMD). Subspaces of such decompositions serve as reduced order models and define either spatial structures in time or temporal structures in space.
Sesterhenn, Jörn, Shahirpour, Amir
openaire   +2 more sources

Dynamic-mode decomposition and optimal prediction [PDF]

open access: yesPhysical Review E, 2021
The Dynamic-Mode Decomposition (DMD) is a well established data-driven method of finding temporally evolving linear-mode decompositions of nonlinear time series. Traditionally, this method presumes that all relevant dimensions are sampled through measurement.
Christopher W. Curtis   +1 more
openaire   +3 more sources

Mixed Mode Dynamic Fracture Toughness of Westerly Granite and Berea Sandstone [PDF]

open access: yes, 2022
We investigate the microstructural controls of mixed mode dynamic fracture propagation in Westerly Granite and Berea Sandstone. Notched semi-circular bend samples of each rock type are loaded using a Split Hopkinson Pressure Bar apparatus and crack ...
Braunagel, Michael J, Griffith, W Ashley
core   +1 more source

Application of time-frequency spectral analysis methods

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2015
In this article the limited application of the non-stationary signals spectra classical analysis using the Fourier transform is substantiated. It is shown that Fourier transform has benefits at periodic signals analysis and limitations when non ...
Yuriy K. Filipsky   +2 more
doaj   +1 more source

A power flow mode theory based on a system's damping distribution and power flow design approaches [PDF]

open access: yes, 2005
A power flow mode theory is developed to describe the natural power flow behaviour of a dynamic system based on its inherent damping distribution.
Xing, J.T.   +5 more
core   +1 more source

Dynamics in mode choice behaviour [PDF]

open access: yes, 2021
To reverse the worrying long-term trends of growing mobility, such as congestion and CO2 emissions, policy makers try to encourage mode shifts from car use to public transport, cycling and walking. Panel data analyses provide insights into the dynamics in mode choice behaviour.
openaire   +1 more source

Безітераційний розрахунокдинамічних процесів у електричних колах з нелінійними реактивностями

open access: yesElektrotehnìka ta Elektroenergetika, 2010
Пропонується методика розрахунку динамічних режимів електричних кiл, що містять нелінійні індуктивності і ємності. Методика заснована на явних методах інтегрування диференціальних рівнянь і вимагає на кожному кроці вирішення прорахунку лінійного ланцюга,
L. M. Kanov
doaj   +1 more source

Extraction of energy-dense components of the combustible materials in the environment pure and modified supercritical CO2

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2017
The results of experimental studies of solubility of TNT in pure and modified supercritical carbon dioxide (SC-CO2) are presented. Studies were carried out in a temperature range of 308.15-333.15 K and pressure interval 10.0-35.0 MPa on circulating type ...
T. R. Bilalov, F. M. Gumerov
doaj   +1 more source

Estimating Time-Varying Effects of Prognostic Factors for Stomach Cancer Patients within a Dynamic Grouped Cox Model [PDF]

open access: yes, 1996
We describe the identification of prognostic factors in the framework of a completely resected stomach cancer survival-study. For the analysis the dynamic grouped Cox-Model was used allowing for time-varying covariate effects.
Nekarda, H.   +2 more
core   +1 more source

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