Results 21 to 30 of about 16,518,033 (301)

Scattering of guided waves propagating through pipe bends based on normal mode expansion

open access: yesScientific Reports, 2022
The scattering of guided waves propagating through pipe bends is studied by means of normal mode expansion. First, the bi-orthogonality relationship for normal modes in pipe bends is derived, based on which the displacement and stress fields at the ...
Wenjun Wu, Hao Dong, Shangyu Zhang
doaj   +1 more source

The bimodality of the East Siberian fast ice extent: mechanisms and changes

open access: yesAnnals of Glaciology, 2023
Using operational sea-ice maps, we provide first insight into the seasonal evolution of fast ice in the East Siberian Sea for the period between 1999 and 2021.
Valeria Selyuzhenok   +4 more
doaj   +1 more source

Tatouage audio par EMD [PDF]

open access: yes, 2013
In this paper a new adaptive audio watermarking algorithm based on Empirical Mode Decomposition (EMD) is introduced. The audio signal is divided into frames and each one is decomposed adaptively, by EMD, into intrinsic oscillatory components called ...
KHALDI, Kais, BOUDRAA, Abdel-Ouahab
core   +1 more source

On the non-stiffness of edge transport in L-modes

open access: yes, 2013
It is shown that contrary to the plasma core, the edge region between rho_V=0.8 and 1 is not stiff. This non-stiffness is crucial for global confinement understanding. It is also shown that it can explain the strong confinement improvement with negative triangularity observed in TCV.
Sauter, Olivier   +5 more
openaire   +4 more sources

Differential impact of multi-focus fan beam collimation with L-mode and conventional systems on the accuracy of myocardial perfusion imaging: Quantitative evaluation using phantoms [PDF]

open access: yesAsia Oceania Journal of Nuclear Medicine and Biology, 2013
Introduction: A novel IQ-SPECTTM method has become widely used in clinical studies. The present study compares the quality of myocardial perfusion images (MPI) acquired using the IQ-SPECTTM (IQ-mode),conventional (180° apart: C-mode) and L-mode (90 ...
Tatsunori Saho   +4 more
doaj   +2 more sources

Mode dispersion and delay characteristics of optical waveguides using equivalent TL circuits [PDF]

open access: yes, 2005
A new analysis leading to an exact and efficient algorithm is presented for calculating directly and without numerical differentiation the mode dispersion characteristics of cylindrical dielectric waveguides of arbitrary refractive-index profile. The new
Boucouvalas, Anthony C.   +3 more
core   +2 more sources

Theory of pseudoclassical confinement and transition to L mode

open access: yesPhysics of Fluids B: Plasma Physics, 1993
A theory of the self-sustained turbulence is developed for resistive plasma in toroidal devices. Pseudoclassical confinement is obtained in the low-temperature limit. As temperature increases, the current diffusivity prevails upon resistivity, and the turbulence nature changes so as to recover the L-mode transport.
K. Itoh   +4 more
openaire   +1 more source

SOLPS-ITER validation with TCV L-mode discharges

open access: yesPhysics of Plasmas, 2021
This work presents a quantitative test of SOLPS-ITER simulations against tokamak à configuration variable (TCV) L-mode experiments. These simulations account for drifts, currents, kinetic neutrals, and carbon impurities providing the most complete edge transport simulations for TCV to date.
Wensing, M.   +18 more
openaire   +1 more source

On the non-stiffness of edge transport in L-mode tokamak plasmas

open access: yesPhysics of Plasmas, 2014
Transport analyses using first-principle turbulence codes and 112-D transport codes usually study radial transport properties between the tokamak plasma magnetic axis and a normalized minor radius around 0.8. In this region, heat transport shows significantly stiff properties resulting in temperature scalelength values (R∕LT) that are relatively ...
Sauter O.   +12 more
openaire   +1 more source

Bayesian Mode Regression [PDF]

open access: yes, 2014
This article has been made available through the Brunel Open Access Publishing Fund.Like mean, quantile and variance, mode is also an important measure of central tendency of a distribution.
Yu, K, Aristodemou, K, Lu, Z
core   +1 more source

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