scholarly journals Noninvasive Assessment of Tear Stability with the Tear Stability Analysis System in Tear Dysfunction Patients

2011 ◽  
Vol 52 (1) ◽  
pp. 456 ◽  
Author(s):  
Koray Gumus ◽  
Charlene Hong Crockett ◽  
Kavita Rao ◽  
Elizabeth Yeu ◽  
Mitchell P. Weikert ◽  
...  
Keyword(s):  
Stability Analysis ◽  
Noninvasive Assessment ◽  
Analysis System ◽  
Tear Dysfunction

scholarly journals Stability analysis of hybrid active power filter

2014 ◽  
Vol 62 (2) ◽  
pp. 279-286
Author(s):  
D. Buła ◽  
M. Pasko
Keyword(s):  
Stability Analysis ◽  
Active Power Filter ◽  
Active Power ◽  
Loop Control ◽  
Passive Filter ◽  
Power Filter ◽  
Hybrid Active Power Filter ◽  
Analysis System ◽  
The Stability ◽  
Hybrid Filters

Abstract In the paper the analysis of a three-phase hybrid active power filter stability has been presented. Configuration with a single tuned passive filter was used as an example. However, the analysis can be applied to similar configurations of hybrid filters with closed loop control. The article presents a model of the analyzed system in the frequency domain. The division of the model into two independent systems, for positive and negative components, allowed to apply the Nyquist criterion for the stability analysis in this case. As a part of the analysis, the effect of delays, control signal filter parameters, and passive filter parameters have been examined. Based on the presented stability analysis, system parameters for the experimental model of a hybrid power filter have been selected. Finally, experimental results confirming the validity of the analysis have been shown.

Evaluation of the tear film stability after laser in situ keratomileusis using the tear film stability analysis system

2004 ◽  
Vol 137 (1) ◽  
pp. 116-120 ◽  
Author(s):  
Tomoko Goto ◽  
Xiaodong Zheng ◽  
Stephen D. Klyce ◽  
Hisashi Kataoka ◽  
Toshihiko Uno ◽  
...  
Keyword(s):  
Stability Analysis ◽  
Tear Film ◽  
Laser In Situ Keratomileusis ◽  
Film Stability ◽  
Tear Film Stability ◽  
Analysis System

Tear Film Stability Analysis System

Cornea ◽  
2004 ◽  
Vol 23 (Supplement 1) ◽  
pp. S65-S70 ◽  
Author(s):  
Tomoko Goto ◽  
Xiaodong Zheng ◽  
Shigeki Okamoto ◽  
Yuichi Ohashi
Keyword(s):  
Stability Analysis ◽  
Tear Film ◽  
Film Stability ◽  
Tear Film Stability ◽  
Analysis System
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