Transverse and lateral shifts of the center of gravity of Laguerre-Gaussian light beam at reflection

2001 ◽  
Author(s):  
Vladimir Fedoseyev
Keyword(s):  
Light Beam ◽  
Center Of Gravity

Measurement of the light intensity of the axis at the center of gravity of a focused light beam

1972 ◽  
Vol 15 (6) ◽  
pp. 696-699 ◽  
Author(s):  
�. I. Gel'fer ◽  
V. B. Kravtsov ◽  
S. E. Finkel'shtein
Keyword(s):  
Light Intensity ◽  
Light Beam ◽  
Center Of Gravity

DUAL LIGHT BEAM MODULATION OF PHOTOCARRIER LIFETIME IN INTRINSIC a-Si:H

1981 ◽  
Vol 42 (C4) ◽  
pp. C4-597-C4-600 ◽  
Author(s):  
P. D. Persans ◽  
H. Fritzsche
Keyword(s):  
Light Beam ◽  
Beam Modulation

Classification of Acceleration Waveforms during Walking by Wavelet Transform

1997 ◽  
Vol 36 (04/05) ◽  
pp. 356-359 ◽  
Author(s):  
M. Sekine ◽  
M. Ogawa ◽  
T. Togawa ◽  
Y. Fukui ◽  
T. Tamura
Keyword(s):  
Wavelet Transform ◽  
Wavelet Analysis ◽  
Center Of Gravity ◽  
Dynamic Responses ◽  
Sequential Data ◽  
Acceleration Signal ◽  
Continuous Dynamic

Abstract:In this study we have attempted to classify the acceleration signal, while walking both at horizontal level, and upstairs and downstairs, using wavelet analysis. The acceleration signal close to the body’s center of gravity was measured while the subjects walked in a corridor and up and down a stairway. The data for four steps were analyzed and the Daubecies 3 wavelet transform was applied to the sequential data. The variables to be discriminated were the waveforms related to levels -4 and -5. The sum of the square values at each step was compared at levels -4 and -5. Downstairs walking could be discriminated from other types of walking, showing the largest value for level -5. Walking at horizontal level was compared with upstairs walking for level -4. It was possible to discriminate the continuous dynamic responses to walking by the wavelet transform.

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