نتایج جستجو برای: degradation coefficient

تعداد نتایج: 318478  

2001
A. R. Merticaru A. J. Mouthaan

In this paper we present the study of the failure mechanism responsible for long-term degradation that ultimately leads to instability in aSi:H/SiN TFTs. The experimental data points we obtain by monitoring in-situ the drain current during gate bias stress (forward and reverse bias) and relaxation could not be fitted with the models existent in the literature. A new model that we have christene...

2012
Deepak K. T. Biswajit Dev Sarma S. R. Mahadeva Prasanna

A method for the robust segmentation of foreground speech in the presence of background degradation using zero frequency filtered signal (ZFFS) is proposed. The speech signal from the desired speaker collected over a mobile phone is termed as foreground speech and the acoustic background picked by the same sensor that includes both speech and non-speech sources is termed as background degradati...

Journal: :Journal of neuroscience methods 2005
Zsolt Kovács Katalin Adrienna Kékesi Mátyás Bobest Tamás Török Nóra Szilágyi Tamás Szikra Zsuzsanna Szepesi Rita Nyilas Arpád Dobolyi Miklós Palkovits Gábor Juhász

There is an increasing attention paid for nucleoside metabolism and changes of nucleoside concentrations in human brain because of its pathological and physiological relevance. In order to determine the post mortem degradation of nucleosides and nucleoside metabolites, the concentrations of four nucleosides and three nucleobases were measured in rat and neurosurgical human cerebral cortical sam...

2005
Wonseok Ahn Chulhee Lee

In this paper, we propose a new video quality measurement method which is based on several degradation factors. The proposed method assumes that reference videos are available. In the proposed algorithm, the VQM (Video Quality Metric) is calculated as a weighted sum of seven features which represent sources of various video degradations. In particular, the degradation factors include PSNR in th...

Journal: :Journal of energy systems 2021

Proton exchange membrane fuel cell is a clean energy generator as it emits water by-product. The has various applications in stationary power generation and transportation. However, there need to improve durability for transportation applications. Fuel limited its performance degrades over period due aging, fault conditions. In this study, we have compared by using new cell, an aged cell. Degra...

Journal: :health scope 0
leili mohammadi health promotion research center, zahedan university of medical sciences, zahedan, ir iran edris bazrafshan health promotion research center, zahedan university of medical sciences, zahedan, ir iran; health promotion research center, zahedan university of medical sciences, zahedan, ir iran meissam noroozifar analytical research laboratory, department of chemistry, university of sistan and baluchestan, zahedan, ir iran alireza ansari-moghaddam health promotion research center, zahedan university of medical sciences, zahedan, ir iran

conclusions according to the results, cop is an efficient and rapid method for removing of toluene from aqueous solutions. results the analysis of variance (anova) of the toluene degradation by cop/mgo nanoparticles showed f-value of 19.53 for the quadratic model indicating that the prepared model is significant. the predicted result showed that maximum degradation of toluene (~99.99%) could be...

فرحناکی, عسگر , مجذوبی, مهسا,

‏ In this research the effects of two common cooking processes of foods, namely, autoclave and extrusion cooking on the molecular and physicochemical properties of wheat starch were investigated. The results showed that the solubility of the autoclaved samples increased with increasing the temperature while their relative viscosity decreased. These findings indicated that the molecular degradat...

ژورنال: علوم آب و خاک 2008
فرحناکی, عسگر , مجذوبی, مهسا,

‏ In this research the effects of two common cooking processes of foods, namely, autoclave and extrusion cooking on the molecular and physicochemical properties of wheat starch were investigated. The results showed that the solubility of the autoclaved samples increased with increasing the temperature while their relative viscosity decreased. These findings indicated that the molecular degradat...

2003
Luciana W. da Silva Massoud Kaviany Andrew DeHennis Jeffrey S. Dyck

A column-type micro thermoelectric cooler is being fabricated using p-type Sb2Te3 and n-type Bi2Te3 films (approximately 4 μm thick). The films are grown by thermal co-evaporation and patterned on Cr/Au/Ti/Pt (hot) connectors, which are deposited onto a silicon dioxide coated wafer. The column height is limited by control of the Te deposition rate. Although a high substrate temperature during t...

2006
Hervé Abdi

The congruence coefficient was first introduced by Burt (1948) under the name of unadjusted correlation as a measure of the similarity of two factorial configurations. The name congruence coefficient was later tailored by Tucker (1951, see also Harman, 1976). The congruence coefficient is also sometimes called a monotonicity coefficient (Borg & Groenen, 1997, p. 203). The congruence coefficient...

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