A method is described with which immittance data can be tested for Kronig-Kramers compliance. In contrast with other procedures, this method is l inear in nature and is based on a predetermined set of relaxation times. The model contains as many parameters (or less) as there are data sets. Three modes of operation are described, the first two are based on a linear fit of the model function to t...

A 28 year old man with a repaired cleft palate presenting with symptoms of a patulous eustachian tube (PET) unilaterally after uneventful Le Fort I maxillary osteotomy is reported. PET is a rare condition which is unknown in relation to orthognathic surgery and may represent a rare complication. Introduction. Under normal circumstances, the Eustachian tube (ET) remains closed at rest but is ope...

BACKGROUND & OBJECTIVE Hearing impairment is one of the associated problems seen particularly in children with cleft palate rather than cleft lip alone. This has received very little attention in the area of cleft care although research shows that hearing impairment affects language development The present study was carried not to find out the type and pattern of audiogram in cases attending a ...

Explicitly based on causality, linearity (superposition) and stability (time invariance) and implicit on continuity (consistency), finiteness (convergence) and uniqueness (single valuedness) in the time domain, Kramers-Kronig (KK) integral transform (KKT) relations for immittances are derived as pure mathematical constructs in the complex frequency domain using the two-sided (bilateral) Laplace...

This article applies a systematic approach based on the normalized determinant function (NDF) theory to analyse stability in multi-loop circuits and design required stabilization network. Presenting several provisions, return ratios are extracted by employing immittance or hybrid matrices (Z, Y, G H) of active two ports. Using these matrices, instead S-parameters, facilitates selection an appro...