scholarly journals Spectral properties of an elliptic operator with double-contrast coefficients near a hyperplane

2016 ◽  
Vol 98 (1-2) ◽  
pp. 91-130 ◽  
Author(s):  
Andrii Khrabustovskyi ◽  
Michael Plum
Keyword(s):  
Elliptic Operator ◽  
Spectral Properties ◽  
Double Contrast

Double contrast arthrography of the knee

1978 ◽  
Vol 14 (1) ◽  
pp. 8
Author(s):  
KO Choe ◽  
YS Kim ◽  
BS Choi
Keyword(s):  
Double Contrast

Model of multicomponent narrow-band periodical non-stationary random signal

2020 ◽  
Vol 2020 (48) ◽  
pp. 17-24
Author(s):  
I.M. Javorskyj ◽  
◽  
R.M. Yuzefovych ◽  
P.R. Kurapov ◽  
◽  
...  
Keyword(s):  
Time Series ◽  
Real Time ◽  
Hilbert Transform ◽  
Spectral Properties ◽  
Narrow Band ◽  
Analytic Signal ◽  
Random Signal ◽  
Hilbert Transformation ◽  
The Hilbert Transform

The correlation and spectral properties of a multicomponent narrowband periodical non-stationary random signal (PNRS) and its Hilbert transformation are considered. It is shown that multicomponent narrowband PNRS differ from the monocomponent signal. This difference is caused by correlation of the quadratures for the different carrier harmonics. Such features of the analytic signal must be taken into account when we use the Hilbert transform for the analysis of real time series.

Structure and Spectral Properties of New Composites Based on Metal Alkanoates with Gold Nanoparticles

2015 ◽  
Vol 60 (04) ◽  
pp. 356-361 ◽  
Author(s):  
A. Tolochko ◽  
◽  
P. Teselko ◽  
A. Lyashchova ◽  
D. Fedorenko ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Spectral Properties
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