Experimental evidence of the self-similarity and long-range correlations of the edge fluctuations in HT-6M tokamak

2001 ◽  
Vol 10 (2) ◽  
pp. 139-144 ◽  
Author(s):  
Wang Wen-hao ◽  
Yu Chang-xuan ◽  
Wen Yi-zhi ◽  
Xu Yu-hong ◽  
Ling Bi-li ◽  
...  
1999 ◽  
Vol 6 (5) ◽  
pp. 1885-1892 ◽  
Author(s):  
B. A. Carreras ◽  
B. Ph. van Milligen ◽  
M. A. Pedrosa ◽  
R. Balbı́n ◽  
C. Hidalgo ◽  
...  

2003 ◽  
Vol 10 (11) ◽  
pp. 4592-4592
Author(s):  
B. A. Carreras ◽  
B. Ph. van Milligen ◽  
M. A. Pedrosa ◽  
R. Balbı́n ◽  
C. Hidalgo ◽  
...  

Author(s):  
В.Н. Сычёв ◽  
М.А. Мищенко ◽  
С.А. Имашев ◽  
М.Е. Чешев

На Камчатке в пункте комплексных геофизических наблюдений ИКИР ДВО РАН Карымшина для регистрации сигналов сейсмоакустической эмиссии на поверхности земли установлен измерительный комплекс. В качестве датчика сигналов используется трехкомпонентный пьезокерамический сейсмоприемник, который регистрирует колебательное ускорение в частотном диапазоне 0.5-400 Гц. Рассмотрен сейсмоакустический отклик на несколько региональных землетрясений с энергетическим классом Ks 11:0 в период 2017-2018 гг. При помощи статистических методов установлено самоподобие их структуры на ограниченном интервале временных масштабов. Это, в свою очередь, указывает на наличие дальних корреляций в рассматриваемой системе и позволяет получить оценку масштабов корреляций. A measurement complex is installed on the ground surface at Karymshina complex geophysical observation site of IKIR FEB RAS (Kamchatka) to record seismoacoustic emission signals. A three-component piezoceramic seismic receiver, which records oscillatory acceleration in the frequency range from 0.2 to 400 Hz, is used as the signal sensor. A series of seismoacoustic responses on regional earthquakes of 2017-2018 with the energy class Ks 11:0 has been considered. Self-similarity of their structures has been established in a limited interval of time scales by statistical methods. That, in its turn, indicates the presence of long-range correlations in the system under consideration and allows one to estimate correlation scales.


Author(s):  
P. A. Davidson

We discuss the long-range interactions that arise in homogeneous turbulence as a consequence of the Biot–Savart law. We note that, somewhat surprisingly, these long-range correlations are very weak in decaying, isotropic turbulence, and we argue that this should also be true for magnetohydrodynamic, rotating and stratified turbulence. If this is indeed the case, it is possible to make explicit predictions for the rate of decay of energy in these anisotropic systems, and it turns out that these predictions are consistent with the available numerical and experimental evidence.


Fractals ◽  
1995 ◽  
Vol 03 (04) ◽  
pp. 785-798 ◽  
Author(s):  
MURAD S. TAQQU ◽  
VADIM TEVEROVSKY ◽  
WALTER WILLINGER

Various methods for estimating the self-similarity parameter and/or the intensity of long-range dependence in a time series are available. Some are more reliable than others. To discover the ones that work best, we apply the different methods to simulated sequences of fractional Gaussian noise and fractional ARIMA (0, d, 0). We also provide here a theoretical justification for the method of residuals of regression.


2014 ◽  
Vol 783 (1) ◽  
pp. L10 ◽  
Author(s):  
M. Gaspari ◽  
F. Brighenti ◽  
P. Temi ◽  
S. Ettori
Keyword(s):  
The Self ◽  

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