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Experimental analysis of finger bloo...

Gong, Weiwen.

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Experimental analysis of finger blood flow in workers exposed to hand-arm vibration.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Experimental analysis of finger blood flow in workers exposed to hand-arm vibration./
Author:	Gong, Weiwen.
Description:	92 p.
Notes:	Director: Robert E. Thomas, Jr.
Contained By:	Dissertation Abstracts International59-11B.
Subject:	Engineering, Biomedical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9912924
ISBN:	9780599113084

Experimental analysis of finger blood flow in workers exposed to hand-arm vibration.
Gong, Weiwen.

Experimental analysis of finger blood flow in workers exposed to hand-arm vibration. - 92 p.

Director: Robert E. Thomas, Jr.

Thesis (Ph.D.)--Auburn University, 1998.

A system facilitating real-time monitoring and evaluation of relative finger blood flow was developed. System components were: a vibration source, LEDs (light emitting diodes), photosensitive diodes, differential amplifiers, A/D boards, a computer and signal acquisition and processing software. The system was validated by demonstrating its signal reproducibility. This system was able to monitor and analyze relative finger blood flow not only before or after vibration, but also during vibration. The following results were obtained from experiments with human subjects. (1)�The physiological meaning of relative finger blood flow signals was explained. (2)�The correlation coefficient between vibrated and non-vibrated hand relative finger blood flow in the student group, which had experienced no occupational hand-arm vibration previously, was significantly higher than that of the worker group, which had substantial occupational hand-arm vibration exposure. However, during vibration, the correlation of vibrated and non-vibrated hand relative finger blood flow in both groups decreased significantly. (3)�For the pre-vibration phase, the net amount of relative blood entering the finger was equal to the net amount of relative blood leaving the finger. (4)�During vibration, relative finger blood flow in the student group increased, while that of the worker group decreased or remained unchanged when compared with the pre-vibration phase. (5)�After vibration and during the recovery period, relative finger blood volume in both groups decreased when compared with the pre-vibration phase.

ISBN: 9780599113084Subjects--Topical Terms:

1017684
Engineering, Biomedical.

Experimental analysis of finger blood flow in workers exposed to hand-arm vibration.
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020 $a 9780599113084
035 $a (UMI)AAI9912924
035 $a AAI9912924
040 $a UMI $c UMI
100 1 $a Gong, Weiwen. $3 1291637
245 1 0 $a Experimental analysis of finger blood flow in workers exposed to hand-arm vibration.
300 $a 92 p.
500 $a Director: Robert E. Thomas, Jr.
500 $a Source: Dissertation Abstracts International, Volume: 59-11, Section: B, page: 6016.
502 $a Thesis (Ph.D.)--Auburn University, 1998.
520 $a A system facilitating real-time monitoring and evaluation of relative finger blood flow was developed. System components were: a vibration source, LEDs (light emitting diodes), photosensitive diodes, differential amplifiers, A/D boards, a computer and signal acquisition and processing software. The system was validated by demonstrating its signal reproducibility. This system was able to monitor and analyze relative finger blood flow not only before or after vibration, but also during vibration. The following results were obtained from experiments with human subjects. (1)�The physiological meaning of relative finger blood flow signals was explained. (2)�The correlation coefficient between vibrated and non-vibrated hand relative finger blood flow in the student group, which had experienced no occupational hand-arm vibration previously, was significantly higher than that of the worker group, which had substantial occupational hand-arm vibration exposure. However, during vibration, the correlation of vibrated and non-vibrated hand relative finger blood flow in both groups decreased significantly. (3)�For the pre-vibration phase, the net amount of relative blood entering the finger was equal to the net amount of relative blood leaving the finger. (4)�During vibration, relative finger blood flow in the student group increased, while that of the worker group decreased or remained unchanged when compared with the pre-vibration phase. (5)�After vibration and during the recovery period, relative finger blood volume in both groups decreased when compared with the pre-vibration phase.
590 $a School code: 0012.
650 4 $a Engineering, Biomedical. $3 1017684
650 4 $a Engineering, Industrial. $3 626639
650 4 $a Health Sciences, Occupational Health and Safety. $3 1017799
690 $a 0354
690 $a 0541
690 $a 0546
710 2 0 $a Auburn University. $3 1020457
773 0 $t Dissertation Abstracts International $g 59-11B.
790 $a 0012
790 1 0 $a Thomas, Robert E., Jr., $e advisor
791 $a Ph.D.
792 $a 1998
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9912924