Statistical analysis of sparse data: Space plasma measurements

2012 ◽  
Author(s):  
Edmond C. Roelof
Keyword(s):  
Statistical Analysis ◽  
Space Plasma ◽  
Sparse Data ◽  
Data Space ◽  
Plasma Measurements

Process characterization and statistical analysis of oxide CMP on a silicon wafer with sparse data

2007 ◽  
Vol 88 (4) ◽  
pp. 785-792 ◽  
Author(s):  
S.T.S. Bukkapatnam ◽  
P.K. Rao ◽  
W.-C. Lih ◽  
N. Chandrasekaran ◽  
R. Komanduri
Keyword(s):  
Statistical Analysis ◽  
Silicon Wafer ◽  
Sparse Data ◽  
Process Characterization

scholarly journals Planetary Dynamics in the α Centauri System: Lyapunov Spectra and Long-term Behaviour

2011 ◽  
Vol 7 (S282) ◽  
pp. 450-451
Author(s):  
E. A. Popova ◽  
I. I. Shevchenko
Keyword(s):  
Statistical Analysis ◽  
Initial Data ◽  
Planetary Motion ◽  
Fine Grid ◽  
Data Space ◽  
Lyapunov Spectra ◽  
Planetary Dynamics ◽  
The Stability ◽  
Central Stars

AbstractThe stability of planetary motion in the binary system α Cen A–B is studied. Lyapunov spectra of the motion of the system with a single massive planet are computed on a fine grid of the initial data, and, by means of statistical analysis of the obtained data arrays, chaotic domains are identified in the “pericentric distance — eccentricity” initial data space for the planetary orbit. Association with the initial data domains for the orbits exhibiting close encounters with central stars and for the orbits exhibiting long-term escape is investigated.

scholarly journals Characteristics of <u>></u> 290 keV magnetosheath ions

1999 ◽  
Vol 17 (5) ◽  
pp. 650-658 ◽  
Author(s):  
I. Karanikola ◽  
G. C. Anagnostopoulos ◽  
A. Rigas
Keyword(s):  
Statistical Analysis ◽  
Shock Waves ◽  
Space Plasma ◽  
High Energy ◽  
Bow Shock ◽  
Occurrence Frequency ◽  
Space Plasma Physics ◽  
Energetic Ions ◽  
Time Periods ◽  
Statistical Results

Abstract. We performed a statistical analysis of 290-500 keV ion data obtained by IMP-8 during the years 1982-1988 within the earth's magnetosheath and analysed in detail some time periods withdistinct ion bursts. These studies reveal the following characteristics for magnetosheath 290-500 keV energetic ions: (a) the occurrence frequency and the flux of ions increase with increasing geomagnetic activity as indicated by the Kp index; the occurrence frequency was found to be as high as P > 42% for Kp > 2, (b) the occurrence frequency in the dusk magnetosheath was found to be slightly dependent on the local time and ranged between ~30% and ~46% for all Kp values; the highest occurrence frequency was detected near the dusk magnetopause (21 LT), (c) the high energy ion bursts display a dawn-dusk asymmetry in their maximum fluxes, with higher fluxes appearing in the dusk magnetosheath, and (d) the observations in the dusk magnetosheath suggest that there exist intensity gradients of energetic ions from the bow shock toward the magnetopause. The statistical results are consistent with the concept that leakage of magnetospheric ions from the dusk magnetopause is a semi-permanent physical process often providing the magnetosheath with high energy (290-500 keV) ions.Key words. Magnetospheric physics (magnetosheath; planetary magnetospheres). Space plasma physics (shock waves).

Space plasma measurements with ion instruments

1989 ◽  
Vol 60 (12) ◽  
pp. 3750-3761 ◽  
Author(s):  
R. L. Kessel ◽  
A. D. Johnstone ◽  
A. J. Coates ◽  
R. A. Gowen
Keyword(s):  
Space Plasma ◽  
Plasma Measurements
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