A Functional Power Evaluation Flow for Defining Test Power Limits during At-Speed Delay Testing

2011 ◽  
Author(s):  
M. Valka ◽  
A. Bosio ◽  
L. Dilillo ◽  
P. Girard ◽  
S. Pravossoudovitch ◽  
...  
Keyword(s):  
Delay Testing ◽  
Test Power ◽  
Power Limits ◽  
Power Evaluation

scholarly journals Spectral F-Test power evaluation in the EEG during intermittent photic stimulaton

2006 ◽  
Vol 64 (2a) ◽  
pp. 228-232 ◽  
Author(s):  
Antonio Mauricio F. L. Miranda de Sá ◽  
Mauricio Cagy ◽  
Vladimir V. Lazarev ◽  
Antonio Fernando C. Infantosi
Keyword(s):  
Signal To Noise Ratio ◽  
Normal Subjects ◽  
Confidence Limits ◽  
Signal To Noise ◽  
F Test ◽  
Test Power ◽  
Photic Driving ◽  
Intermittent Photic Stimulation ◽  
Electroencephalogram Eeg ◽  
Power Evaluation

Intermittent photic stimulation (IPS) is an important functional test, which can induce the photic driving in the electroencephalogram (EEG). It is capable of enhancing latent oscillation’s manifestations not present in the resting EEG. However, for adequate quantitative evaluation of the photic driving, these changes should be assessed on a statistical basis. With this aim, the sampling distribution of spectral F test was investigated. On this basis, confidence limits of the SFT-estimate could be obtained for different practical situations, in which the signal-to-noise ratio and the number of epochs used in the estimation may vary. The technique was applied to the EEG of 10 normal subjects during IPS, and allowed detecting responses not only at the fundamental IPS frequency but also at higher harmonics. It also permitted to assess the strength of the photic driving responses and to compare them in different derivations and in different subjects.

Proposal for a Simple Regenerative Power Evaluation Method

2015 ◽  
Vol 135 (4) ◽  
pp. 348-354 ◽  
Author(s):  
Yuta Aoki ◽  
Hiroaki Hori ◽  
Ken'ichiro Oka ◽  
Hitoshi Hayashiya
Keyword(s):  
Evaluation Method ◽  
Regenerative Power ◽  
Power Evaluation

Power Limits in Stepping and other Small Brushless Motors — A Simple Approach Using the Blondel Circle Diagram

1988 ◽  
Vol 25 (3) ◽  
pp. 251-264
Author(s):  
A. Hughes ◽  
D. W. J. Pulle
Keyword(s):  
Steady State ◽  
Simple Approach ◽  
Brushless Motors ◽  
Undergraduate Level ◽  
State Behaviour ◽  
Power Limits ◽  
Circle Diagram ◽  
Steady State Behaviour

Brushless drives are important, but are often thought to be difficult to treat quantitatively at the undergraduate level. The Blondel circle diagram is shown to be ideal for illuminating the steady-state behaviour and limitations of small brushless system, at a level suitable for undergraduate courses.

High-Power Operation of Acoustic-Electric Power Feedthroughs Through Thick Metallic Barriers

2012 ◽  
Author(s):  
K. R. Wilt ◽  
H. A. Scarton ◽  
G. J. Saulnier ◽  
T. J. Lawry ◽  
J. D. Ashdown
Keyword(s):  
Power Density ◽  
High Power ◽  
Electrical Power ◽  
Power Transfer ◽  
Receive Transducer ◽  
High Power Operation ◽  
Linear Effects ◽  
Power Limits ◽  
Power Operation ◽  
Power Testing

Throughout the last few years there has been a significant push to develop a means for the transmission of electrical power through solid metallic walls using ultrasonic means. The bulk of this effort has been focused on using two coaxially aligned piezoelectric transducers on opposite sides of a thick metallic transmission barrier, where one transducer serves as the “transmit” transducer and the other as the “receive” transducer. Previous modeling has predicted reasonably high power transfer efficiencies through the wall using this type of “acoustic-electric channel” to be possible at low power levels, which implies that channel component operates in a linear range with little concern of failure. High-power testing of two acoustic-electric channels has been done in an effort to determine power limits on such channels and to determine levels at which non-linear effects on the piezoelectrics become non-negligible. The tested channels are characterized by the “power density” imposed on the transmit transducer, that is, the power applied per unit area, as the values found for maximum power density are considered to be independent of transducer radii. The constructed channels are shown to be capable of transmitting large amounts of power (over 100 watts) without failure; and further, extrapolation of the results to channels with larger diameter transducers predicts power transfer of 1 kW to be highly feasible.

Antioxidative Power Evaluation of Some Phenolic Antioxidants - Electroanalytical Approach

2001 ◽  
Vol 13 (8-9) ◽  
pp. 804-806 ◽  
Author(s):  
Simona Litescu ◽  
Gabriel-Lucian Radu ◽  
Mirela Diaconu
Keyword(s):  
Phenolic Antioxidants ◽  
Power Evaluation
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