scholarly journals Generalized transfer function: A simple model applied to active single-mode microring resonators

2009 ◽  
Vol 282 (19) ◽  
pp. 3940-3947 ◽  
Author(s):  
Y.G. Boucher ◽  
P. Féron
Keyword(s):  
Simple Model ◽  
Transfer Function ◽  
Single Mode ◽  
Microring Resonators ◽  
Generalized Transfer Function

Generalized transfer function of nonlinear active semiconductor microring resonators

2006 ◽  
Author(s):  
Yann G. Boucher ◽  
Yannick Dumeige ◽  
Laura Ghisa ◽  
Patrice Féron
Keyword(s):  
Transfer Function ◽  
Microring Resonators ◽  
Generalized Transfer Function

Multiscale mathematical modeling vs. the generalized transfer function approach for aortic pressure estimation: a comparison with invasive data

2018 ◽  
Vol 42 (5) ◽  
pp. 690-698 ◽  
Author(s):  
Andrea Guala ◽  
Francesco Tosello ◽  
Dario Leone ◽  
Luca Sabia ◽  
Fabrizio D’Ascenzo ◽  
...  
Keyword(s):  
Mathematical Modeling ◽  
Transfer Function ◽  
Aortic Pressure ◽  
Function Approach ◽  
Pressure Estimation ◽  
Generalized Transfer Function

Control Theory, Delays and Driving an Automobile

2005 ◽  
Vol 33 (2) ◽  
pp. 93-109 ◽  
Author(s):  
Shlomo Engelberg
Keyword(s):  
Reaction Time ◽  
Simple Model ◽  
Transfer Function ◽  
Critical Parameter ◽  
Complete System ◽  
Realistic Model ◽  
Low Frequencies ◽  
Reasonable Approximation ◽  
Phase Lead ◽  
Reasonable Choice

A simple model of the driver—automobile system is developed and several reasonable candidates for the transfer function of the human ‘controller’ are studied. The model is used to examine the controller candidates. The complete system is analysed both analytically and through simulations. It is found that a delay followed by a phase-lead controller is a reasonable choice for the transfer function that the human ‘controller’ implements. The model developed is compared with a more realistic model and is seen to be a reasonable approximation of the realistic model at low frequencies. Reaction time is shown to be a critical parameter in understanding the dynamics of the driver—automobile system.

Volterra series transfer function of single-mode fibers

1997 ◽  
Vol 15 (12) ◽  
pp. 2232-2241 ◽  
Author(s):  
K.V. Peddanarappagari ◽  
M. Brandt-Pearce
Keyword(s):  
Transfer Function ◽  
Volterra Series ◽  
Single Mode

Blood Flow Modeling to Improve Cardiovascular Diagnostics: Application of A GTF to Predict Central Aortic Pressure using a 1-D Model

2018 ◽  
Vol 7 (4.26) ◽  
pp. 146
Author(s):  
A. T. Butt ◽  
Y. A. Abakr ◽  
K. B. Mustapha
Keyword(s):  
Transfer Function ◽  
Transfer Functions ◽  
Experimental Studies ◽  
Aortic Pressure ◽  
Iliac Arteries ◽  
Central Aortic Pressure ◽  
Blood Flow Modeling ◽  
Feasible Alternative ◽  
Generalized Transfer Function ◽  
Mean Square Errors

This study aims to demonstrate that a comprehensive one-dimensional model of the arterial network can be used in conjunction with the generalized transfer function (GTF) technique to estimate central aortic pressure using pressure waveforms obtained from peripheral sites. The peripheral and central pressure waveforms for a healthy subject are used to estimate transfer functions, which are then used to reconstruct central aortic pressure waveforms for a second model that simulates arterial stiffening. The similarities between the simulated aortic waveform and the waveforms estimated using the transfer function are and   from the brachial, carotid and iliac arteries, respectively. The root-mean-square errors (RMSE) for the reconstructed waveforms from the brachial, carotid and iliac arteries are and  mmHg, respectively. The results from this study illustrate that the proposed method provides a feasible alternative to higher dimensional models as well as experimental studies and can greatly enhance the accuracy of central aortic pressure estimation.     

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