نتایج جستجو برای: whitening index

تعداد نتایج: 398121  

Journal: :Tanzania Dental Journal 2009

Journal: :The American Statistician 2018

2007
Dan Stowell Mark Plumbley

Adaptive whitening is a preprocessing technique for STFTbased onset detectors, which can improve the performance of onset detectors by compensating for spectral rolloff and dynamic variability [7]. In this MIREX submission we applied adaptive whitening to a selection of STFT-based onset detection functions (ODFs) from recent literature. Our code is oriented primarily towards use in real-time sy...

2017
Suwon Shon Seongkyu Mun Hanseok Ko

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...

Journal: :Journal of dental hygiene : JDH 2012
Ann M Bruhn Michele L Darby Gayle B McCombs Carleen M Lynch

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...

2011
Edward A. Clancy

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...

2010
Akira Kawada Yoshinori Aragane Tadashi Tezuka

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...

2015
Muhammet Karadas Omer Hatipoglu

The aim of this study was to analyze the efficacy of mouthwashes containing hydrogen peroxide compared with 10% carbamide peroxide (CP) gel. Fifty enamel-dentin samples were obtained from bovine incisors and then stained in a tea solution. The stained samples were randomly divided into five groups according to the whitening product applied (n = 10): AS: no whitening (negative control), with the...

2015
Andréa Abi Rached DANTAS Janaina Freitas BORTOLATTO Ávery RONCOLATO Hugo MERCHAN Michael Christopher FLOROS Milton Carlos KUGA Osmir Batista de OLIVEIRA

OBJECTIVE The purpose of this in vitro study was to compare the efficacy of a bleaching toothpaste containing Blue Covarine vs. conventional tooth bleaching techniques using peroxides (both in-office and at-home). MATERIAL AND METHODS Samples were randomly distributed into five experimental groups (n=15): C - Control; BC - Bleaching toothpaste containing Blue Covarine; WBC - Bleaching toothpa...

2013
Liangqian Fan Fenghui Chen Yuliang Fan

The grey clustering method is suitable for the comprehensive assessment of soil environmental quality. However, the zero-weight problem exists in the general grey clustering method. In order to solve the defect and apply the grey clustering method to soil environmental assessment, this study improved the general grey clustering method by replacing the linear whitening functions with the exponen...

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