This article investigates a theoretical basis for estimating autoregressive (AR) processes for linear-recurrent signals in convolutive mixtures. Whitening of such signals is sometimes a problem in multichannel blind equalization which is intended to extract the original signals even if the signals are of a convolutive mixture type. This whitening is due to inverse-filtering which deconvolves th...

In order to improve the prediction performance of existing nonlinear grey Bernoulli model and extend its applicable range, an improved is presented by using a modeling technique optimization methods. First, traditional whitening equation transformed into linear formulae. Second, structural parameters are proposed eliminate inherent error caused leap jumping from differential difference one. As ...

Recently in speaker recognition, performance degradation due to the channel domain mismatched condition has been actively addressed. However, the mismatches arising from language is yet to be sufficiently addressed. This paper proposes an approach which employs recursive whitening transformation to mitigate the language mismatched condition. The proposed method is based on the multiple whitenin...

PURPOSE The purpose of this study was to determine if vital tooth whitening affects oral health-related quality of life (OHRQOL) in adults age 50 years and older, and if tooth whitening causes increased participation in social activities. METHODS Using a 2 group, single blind, randomized, pre-test, multiple post-test design, 62 participants were enrolled. The experimental group used a whiten...

AND INTRODUCTION The amplitude of the surfa.ce EMG is frequently used as the control input to myoelectric prostheses, as a measure of muscular effort, and has also been investigated as an indicator of muscle force This paper will review the methods which are used to estimate the EMG amplitude from recordings of the EMG waveform. (Note that this review does not include the related area of EMG-to...

Discoloration of teeth, especially the anteriors, can result in considerably cosmetic impairment in young children. It is the pediatric dentist’s responsibility to supervise those children who seek to undergo a whitening treatment to ensure the maximum cosmetic benefit within the boundaries of oral and systematic health. Among bleaching techniques, the walking bleach technique with sodium perbo...

High quality music coders commonly use auditory masked thresholds to account for the characteristics of the human ear. Perceptual lters (based upon linear signal prediction used in speech coders) are compared to lters using masked thresholds. Using listening tests, we have noticed that the second method does not provide better perceptual results. A natural way of proceeding would be to de ne a ...

A new whitening cosmetic essence, 'Concentre anti-tache nuit'(CAN) (Parfums Christian Dior), which contained 3% magnesium 1-ascorbyl 2-phosphate, vitamin A, and an antisense compound(DNA Na), was evaluated against solar simulated radiation-induced delayed tanning(DT) in the unexposed upper arm skin of 12 healthy Japanese females, aged 20 to 55 years. Whitening effect was estimated by observatio...