scholarly journals Use of a new skin colour measurement method for the investigation of relationship between skin and tooth colour

2020 ◽  
pp. 81-85
Author(s):  
Nurullah Türker ◽  
Ulviye Sebnem Büyükkaplan ◽  
Işın Kürkçüoğlu ◽  
Burak Yılmaz
Keyword(s):  
Measurement Method ◽  
Skin Colour ◽  
Colour Measurement ◽  
Tooth Colour ◽  
New Skin

The in vitro and in vivo validation of a mobile non-contact camera-based digital imaging system for tooth colour measurement

2008 ◽  
Vol 36 ◽  
pp. 15-20 ◽  
Author(s):  
Richard N. Smith ◽  
Luisa Z. Collins ◽  
Mojgan Naeeni ◽  
Andrew Joiner ◽  
Carole J. Philpotts ◽  
...  
Keyword(s):  
Digital Imaging ◽  
Imaging System ◽  
Colour Measurement ◽  
Digital Imaging System ◽  
Tooth Colour ◽  
In Vivo Validation

scholarly journals The in vitro and in vivo reproducibility of a video-based digital imaging system for tooth colour measurement

2017 ◽  
Vol 67 ◽  
pp. S15-S19 ◽  
Author(s):  
Wen Luo ◽  
Mojgan Naeeni ◽  
Suzanne Platten ◽  
Jinfang Wang ◽  
Jianing N. Sun ◽  
...  
Keyword(s):  
Digital Imaging ◽  
Imaging System ◽  
Colour Measurement ◽  
Digital Imaging System ◽  
Tooth Colour

scholarly journals Sweet Cherry Skin Colour Measurement as an Non-Destructive Indicator of Fruit Maturity

2019 ◽  
Vol 23 (2) ◽  
pp. 157-166 ◽  
Author(s):  
Piotr Chełpiński ◽  
Ireneusz Ochmian ◽  
Paweł Forczmański
Keyword(s):  
Skin Colour ◽  
Internal Quality ◽  
Colour Measurement ◽  
Important Indicator ◽  
Colour Measurements ◽  
Extract Content ◽  
Fruit Maturity ◽  
Colour Changes ◽  
Non Destructive

Abstract Colour measurement is one of the methods used to evaluate food quality. Aim of completed research was the evaluation of a fast and non-destructive method which consisted of assessing colour changes. It was used to determine the ripeness of cherries during their harvest. Additionally, the most significant parameter determining fruit ripeness was identified. Colour measurements of the Burlat cherry on the PHL A rootstocks were supposed to provide standards for practical evaluation of fruit ripeness of this species at an orchard. During the research, the measurements concerned the internal quality of the cherry fruit (firmness, extract content) and the force required to tear off the stem, depending on the size of the fruit. The extract appeared to be the most important indicator to be used for the determination of an optimum harvesting period. It was most prominently correlated with the cherry’s colour. Changes in the skin colour were the most reflected by the value of the parameter CIE a*. The coordinates CIE L* and b* are also important for the determination of fruit quality. Burlat cherries achieve their optimum harvesting ripeness if the coordinate a* is within the range 30.0 to 0.0, the coordinate b* within 10.0 to 0.0 and the coordinate L* within 30.0 to 20.0, which corresponds to the extract value of 12-20%.

scholarly journals The Tooth and Skin Colour Interrelationship across the Different Ethnic Groups

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Satheesh B. Haralur ◽  
Ahmed Mohammed Dibas ◽  
Nabil Abdullah Almelhi ◽  
Dhafer Ali Al-Qahtani
Keyword(s):  
Ethnic Group ◽  
Ethnic Groups ◽  
Strong Correlation ◽  
Saudi Arabian ◽  
Skin Colour ◽  
Strong Negative Correlation ◽  
Colour Parameters ◽  
Group A ◽  
Edentulous Patients ◽  
Tooth Colour

Objectives. The purpose of the study was to investigate the relation between skin and tooth colour parameters in various ethnic groups.Materials and Methods. Saudi Arabian, Indian, African, and East Asian ethnic groups of 75 each were included in the study. The tooth colour was determined by spectrophotometer in CIELAB parameters. The skin colour was measured at earlobe, forehead, and malar locations by clinical skin photography. The data was statistically analysed by one-way ANOVA and correlation tests.Results. The “L” vale for the Saudi Arabian group had a strong correlation at earlobe location (r=0.275), while correlation was found at forehead (r=0.271) and malar region (r=0.261) with Indian ethnic group. A strong negative correlation was observed in African ethnic group at all three locations for “L” parameter. The redness value “a” is found to have strong negative linear correlation between the earlobe and tooth for Saudi Arabian (r=-0.240) and Indian ethnic groups (r=-0.268). The “b” showed no correlation with skin location in all groups except positive correlation in African ethnic groups.Conclusions. The strong correlation was found between the skin and tooth colour parameters; hence the skin colour can be used as a guide for artificial tooth selection in edentulous patients.

Analysis of significant measures for thermal conductivity

2020 ◽  
pp. 35-42
Author(s):  
Yuri P. Zarichnyak ◽  
Vyacheslav P. Khodunkov
Keyword(s):  
Thermal Conductivity ◽  
Heat Flux ◽  
Surface Heat Flux ◽  
Heat Flux Density ◽  
Measurement Method ◽  
Conductivity Measurement ◽  
Surface Heat ◽  
Measuring Instrument ◽  
New Class ◽  
Achievable Accuracy

The analysis of a new class of measuring instrument for heat quantities based on the use of multi-valued measures of heat conductivity of solids. For example, measuring thermal conductivity of solids shown the fallacy of the proposed approach and the illegality of the use of the principle of ambiguity to intensive thermal quantities. As a proof of the error of the approach, the relations for the thermal conductivities of the component elements of a heat pump that implements a multi-valued measure of thermal conductivity are given, and the limiting cases are considered. In two ways, it is established that the thermal conductivity of the specified measure does not depend on the value of the supplied heat flow. It is shown that the declared accuracy of the thermal conductivity measurement method does not correspond to the actual achievable accuracy values and the standard for the unit of surface heat flux density GET 172-2016. The estimation of the currently achievable accuracy of measuring the thermal conductivity of solids is given. The directions of further research and possible solutions to the problem are given.

Vitamin D therapy: the effects of race, skin colour and genotype

2016 ◽  
Author(s):  
Jaya Sujatha ◽  
Gopal Kothandapani ◽  
Lucy Evans ◽  
Gossiel Fatma ◽  
Jennifer Walsh ◽  
...  
Keyword(s):  
Vitamin D ◽  
Skin Colour

Acoustic Distance Measurement Method Using 2ch Microphones Measurable from 0m Based on Phase Interference and Removal of DC Component

2015 ◽  
Vol 135 (11) ◽  
pp. 1349-1350
Author(s):  
Kazuhiro Suzuki ◽  
Noboru Nakasako ◽  
Masato Nakayama ◽  
Toshihiro Shinohara ◽  
Tetsuji Uebo
Keyword(s):  
Measurement Method ◽  
Distance Measurement ◽  
Phase Interference ◽  
Dc Component
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