scholarly journals Removing phase variability to extract a mean shape for juggling trajectories

2014 ◽  
Vol 8 (2) ◽  
pp. 1848-1855 ◽  
Author(s):  
Nicolas J.-B. Brunel ◽  
Juhyun Park
Keyword(s):  
Mean Shape ◽  
Phase Variability

The Mean Shape of the Human Cornea

1982 ◽  
Vol 29 (8) ◽  
pp. 1027-1040 ◽  
Author(s):  
P.M. Kiely ◽  
G. Smith ◽  
L.G. Carney
Keyword(s):  
Human Cornea ◽  
Mean Shape ◽  
The Mean

scholarly journals Austral Spring Stratospheric and Tropospheric Circulation Interannual Variability

2011 ◽  
Vol 24 (11) ◽  
pp. 2629-2647 ◽  
Author(s):  
Eduardo Andrés Agosta ◽  
Pablo Osvaldo Canziani
Keyword(s):  
Interannual Variability ◽  
High Index ◽  
Stationary Waves ◽  
Energy Propagation ◽  
Central Pacific ◽  
Austral Spring ◽  
Circulation Patterns ◽  
Tropospheric Circulation ◽  
Phase Variability ◽  
Jet Structure

Abstract The relationship between the October (spring) total ozone column (TOC) midlatitude zonal asymmetry over the Southern Hemisphere (SH) and the stratospheric quasi-stationary wave 1 (QSW1) interannual phase variability is analyzed. Once contributions to the TOC from known global predictors, estimated with a multiregression model, are removed, the residual TOC interannual variability is observed to be dynamically coupled to the stratospheric QSW1 phase behavior. The stratospheric QSW1 interannual phase variability, when classified according to specifically designed indices, yields different circulation patterns in the troposphere and stratosphere. High (upper quartile) index values correspond to a westward rotation of the midlatitude ozone trough and the stratospheric QSW1 phase, while low (lower quartile) index values represent their eastward-rotated state. These values can be associated with statistically different tropospheric circulation patterns: a predominantly single poleward tropospheric jet structure for high index values and a predominantly double-jet structure for low index values. For the latter, there is a higher daily probability of double-jet occurrence in the troposphere and a stronger stratospheric jet. These jet structures and their daily behavior are supported by significant synoptic-scale activity anomalies over SH mid- to high latitudes as well as changes in tropospheric quasi-stationary waves 1–3. The wave activity flux (W flux) diagnosis shows the contribution of active quasi-stationary waves in the observed tropospheric anomalies associated with high and low index values. With low index values, the quasi-stationary waves lead to a self-sustaining state of the stratospheric–tropospheric coupled system. With high index values, the overall mid- to high latitude circulation is associated with wave energy propagation from the tropical central Pacific into higher latitudes. Thus, during the austral spring, there are interactions between the troposphere and stratosphere, leading to the locally well-defined upward and downward propagation of wave anomalies, that is, significant upper troposphere (UT)–lower stratosphere (LS) interactions can occur within a spring month itself.

Mean-shape vector quantizer for ECG signal compression

1999 ◽  
Vol 46 (1) ◽  
pp. 62-70 ◽  
Author(s):  
J.L. Cardenas-Barrera ◽  
J.V. Lorenzo-Ginori
Keyword(s):  
Ecg Signal ◽  
Signal Compression ◽  
Vector Quantizer ◽  
Mean Shape ◽  
Shape Vector

scholarly journals Modeling and analyzing neural signals with phase variability using Fisher-Rao registration

2020 ◽  
Vol 346 ◽  
pp. 108954
Author(s):  
Weilong Zhao ◽  
Zishen Xu ◽  
Wen Li ◽  
Wei Wu
Keyword(s):  
Neural Signals ◽  
Phase Variability

scholarly journals Effectiveness of Landmark and Continuous Registrations in Reducing Inter- and Intrasubject Phase Variability

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 216003-216017
Author(s):  
Muhammad Athif Mat Zin ◽  
Azmin Sham Rambely ◽  
Noratiqah Mohd Ariff
Keyword(s):  
Phase Variability

GEOMETRY OF CONTACT BETWEEN SELF-AFFINE SURFACES

Fractals ◽  
1995 ◽  
Vol 03 (01) ◽  
pp. 113-122 ◽  
Author(s):  
FRANCK PLOURABOUÉ ◽  
STÉPHANE ROUX ◽  
JEAN SCHMITTBUHL ◽  
JEAN-PIERRE VILOTTE
Keyword(s):  
Probability Distribution ◽  
Contact Point ◽  
Relative Shift ◽  
Lévy Walk ◽  
Contact Points ◽  
Roughness Exponent ◽  
Mean Shape ◽  
Before And After ◽  
Levy Walk ◽  
The Mean

We study the geometry of the contact between two rigid self-affine surfaces. We investigate the mean shape of the surface in the vicinity of the contact point as well as the probability distribution of apertures a as a function of the distance to the contact point. The latter reveals two distinct scaling regimes which are characterized. We show that as the two surfaces are shifted with respect to each other, the contact point on one surface undergoes a “Levy walk”. If u is the relative shift of the surfaces, the distance d between the two contact points (before and after the shift), scales as d ∝ uα where the exponent α is shown to be equal to the roughness exponent of the surfaces.

scholarly journals Drop Shapes and Axis Ratio Distributions: Comparison between 2D Video Disdrometer and Wind-Tunnel Measurements

2009 ◽  
Vol 26 (7) ◽  
pp. 1427-1432 ◽  
Author(s):  
M. Thurai ◽  
V. N. Bringi ◽  
M. Szakáll ◽  
S. K. Mitra ◽  
K. V. Beard ◽  
...  
Keyword(s):  
Wind Tunnel ◽  
Close Agreement ◽  
Drop Diameter ◽  
Wind Tunnel Experiments ◽  
Axis Ratio ◽  
Wind Tunnel Measurements ◽  
Mean Shape ◽  
The Mean ◽  
Ratio Versus ◽  
Made In

Abstract Comparisons of drop shapes between measurements made using 2D video disdrometer (2DVD) and wind-tunnel experiments are presented. Comparisons are made in terms of the mean drop shapes and the axis ratio distributions. Very close agreement of the mean shapes is seen between the two sets of measurements; the same applies to the mean axis ratio versus drop diameter. Also, in both sets of measurements, an increase in the oscillation amplitudes with increasing drop diameter is observed. In the case of the 2DVD, a small increase in the skewness was also detected. Given that the two sets of measurements were conducted in very different conditions, the agreement between the two sets of data implies a certain “robustness” in the mean shape of oscillating drops that may be extended to natural raindrop oscillations, at least in steady rainfall and above the surface layer.

scholarly journals The QED (Quasar Energy Distributions) Atlas

1994 ◽  
Vol 159 ◽  
pp. 516-516 ◽  
Author(s):  
J. Mcdowell
Keyword(s):  
Ultraviolet Region ◽  
Energy Distributions ◽  
Mean Shape

While the energy distributions of optically and radio selected quasars have the same, reproducible, mean shape in the infrared to ultraviolet region, the strength of the infrared and ultraviolet components can vary by over a decade from object to object.

Acoustic intensity and phase variability caused by time‐evolving internal wave fields

1999 ◽  
Vol 105 (2) ◽  
pp. 1311-1311 ◽  
Author(s):  
Steven Finette ◽  
Marshall Orr ◽  
Altan Turgut ◽  
Stephen Wolf ◽  
Bruce Pasewark ◽  
...  
Keyword(s):  
Internal Wave ◽  
Acoustic Intensity ◽  
Wave Fields ◽  
Phase Variability
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