General impedance-function theory

Advances in Impedance Theory∗

We review recent progress in the following areas of the impedance theory: calculation of impedance of tapers and small angle collimators; optical approximation and parabolic equation for the high-frequency impedance; impedance due to resistive inserts in a perfectly conducting pipe.

A General Fredholm Theory II: Implicit Function Theorems

A general theory quantifying the root sensitivity function

In this report, we present a geometric method for representing the classical root sensitivity function of linear time-invariant systems. The method employs gain plots that expand the information presented in the root locus plot in a manner that permits determination of both the real and imaginary components of the root sensitivity function by inspection. • ' f | ' i ;^ H-1 ;• "K I. The Root Sen...

A general transform theory of rational orthonormal basis function expansions∗

In this paper a general transform theory is presented that underlies expansions of stable discrete-time transfer functions in terms of rational orthonormal bases. The types of bases considered are generated by cascade connections of stable all-pass functions. If the all-pass sections in such a network are all equal, this gives rise to the Hambo basis construction. In this paper a more general c...

Impedance boundary conditions for general transient hemodynamics.

We discuss the implementation and calibration of a new generalized structured tree boundary condition for hemodynamics. The main idea is to approximate the impedance corresponding to the vessels downstream from a specific outlet. Unlike previous impedance conditions, the one considered here is applicable to general transient flows as opposed to periodic ones only. The physiological character of...