Originally proposed as a method for measuring the power gain of the cochlear amplifier, Allen-Fahey experiments compare intracochlear distortion products and ear-canal otoacoustic emissions (OAEs) under tightly controlled conditions. In this paper Allen-Fahey experiments are shown to place significant constraints on the dominant mode of reverse energy propagation within the cochlea. Existing Al...

Harmonics in power distribution system are current or voltage that are integer multiples of fundamental frequency. For example if the fundamental frequency 50 Hz, then the 2-nd harmonics is 100Hz, the 3-rd is 150Hz, etc. A pure voltage or current sine wave has no distortion and no harmonics but non sinusoidal wave has distortion and harmonics. To quantify the distortion, the term total harmonic...

To estimate the probability distributions of power fades, we consider two basic types of disturbance in electromagnetic wave propagation through atmospheric turbulence: wave-front intensity fluctuations and wave-front distortion. We assess the reduction in the cumulative probability of losses caused by these two effects through spatial diversity by using a multiaperture receiver configuration. ...

Intensive studies have been carried out on the rotational spectra of various isotopic species of ketene, H2C = C = 0 , since 1950 [ 1 6 ] . The centrifugal distortion analysis of ketene [3, 4 ] , together with information from additional infrared data [3, 5 ] , enabled Mallinson and Nemes [6] to reevaluate the molecular force field for ketene. Recently, microwave investigations on the higher ho...

Although mammalian otoacoustic emissions (OAEs) have generally been regarded as originating through nonlinear electromechanical distortion, measurements of OAE phase made using frequency-scaled stimuli (e.g., a pure tone or a pair of tones with fixed frequency ratio f2/f1) are now understood as providing clear evidence for two fundamentally different types of emission [11,6]: distortion-source ...

The efficiency of the traditional DDFS is greatly depends on the large size of memory. The ROM less architecture for generating sine wave and its necessary corrective measure based on parabola has already been developed. This paper proposes a modified parabola by adding a triangular wave to achieve a sine wave with less distortion. This architecture gives better performance.

The generation of sine wave at low frequency is very tedious because the size of the inductors used in the circuit is very large and bulky. Hence the inductor is replaced with the simulated inductor. This study deals with the generation of sine wave from an active tuned oscillator which consists of the simulated inductor and capacitor. The oscillator makes use of the basic blocks of a band pass...