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Generalized fractal dimensions of laser Doppler flowmetry signals recorded from glabrous and nonglabrous skin
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10.1118/1.3395577
/content/aapm/journal/medphys/37/6/10.1118/1.3395577
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/37/6/10.1118/1.3395577
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

LDF signals recorded (a) in the right forearm, (b) in the left forearm, (c) in the right hand palm, and (d) in the left hand palm of a young healthy subject (29 yr old) in a supine position.

Image of FIG. 2.
FIG. 2.

Partition function of a binomial measure computed with , , and .

Image of FIG. 3.
FIG. 3.

Theoretical and numerically estimated generalized fractal dimensions of a binomial measure computed with , , and .

Image of FIG. 4.
FIG. 4.

Numerically estimated generalized fractal dimensions of a binomial measure computed with , , and and with a mean value of 80.

Image of FIG. 5.
FIG. 5.

Partition function of the normalized LDF signals recorded in (a) the right forearm, (b) the left forearm, (c) the right hand palm, and (d) the left hand palm of a young healthy subject (29 yr old) in a supine position. The parameter varies between −5 and 5. The size of the boxes varies between 1 and 3000 samples.

Image of FIG. 6.
FIG. 6.

Average generalized fractal dimensions obtained with the normalized LDF signals recorded in the right forearm, in the left forearm, in the right hand palm, and in the left hand palm of healthy subjects in a supine position. The signals have 3000 samples. The parameter varies between −5 and 5. The size of the boxes varies between 1 and 3 samples.

Image of FIG. 7.
FIG. 7.

Zooms of a partition function for the normalized LDF signal recorded in the right forearm of a young healthy subject (29 yr old) in a supine position. The parameter varies between −5 and 5. The sizes of the boxes varies between (a) 10 and 30 samples to be in accordance with the cardiac rhythm, (b) 30 and 125 samples for the respiration, (c) 125 and 375 samples for the myogenic mechanisms, (d) 375 and 1000 samples for the neurogenic mechanisms, and (e) 1000 and 3000 samples for the endothelial-related mechanisms.

Image of FIG. 8.
FIG. 8.

Average generalized fractal dimensions obtained with the normalized LDF signals recorded (a) in the right forearm, (b) in the left forearm, (c) in the right hand palm, and (d) in the left hand palm of eight healthy subjects in a supine position. The parameter varies between −5 and 5. The sizes of the boxes varies between 10 and 30 samples to be in accordance with the cardiac rhythm, between 30 and 125 samples for the respiration, between 125 and 375 samples for the myogenic mechanisms, between 375 and 1000 samples for the neurogenic mechanisms, and between 1000 and 3000 samples for the endothelial-related mechanisms.

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/content/aapm/journal/medphys/37/6/10.1118/1.3395577
2010-05-21
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Generalized fractal dimensions of laser Doppler flowmetry signals recorded from glabrous and nonglabrous skin
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/37/6/10.1118/1.3395577
10.1118/1.3395577
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