Systematic Research and Analysis of the Origin of Color, Reflection Spectra and Influencing Factors : On Layered and Complex Materials with Different Degrees of Liquid Contents

Lingua: inglese

Editore: Hoffmann, 2000

334000014X / 9783340000145

Da: AHA-BUCH GmbH, Einbeck, GermaniaAHA-BUCH GmbH

Venditore con 5 stelle

Venditore AbeBooks dal 14 agosto 2006

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Condizione: Nuovo

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Spedito da Germania a U.S.A.

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Descrizione dell’articolo da parte del venditore

nach der Bestellung gedruckt Neuware - Printed after ordering - A book for anyone interested in the natural Sciences - with further title: '. Light, Beam Path, Gloss or Lustre Effect, Filter, Light Types, Illumination, Illuminant, Metamerism, Measurement Geometries, Observation Angle, System Type, Measurement Mode, Measuring System-Object Relation, Positioning, Displacement, Reproducibility, Sizes of the Measuring Surface and Measuring Opening, Water, Liquid, Liquid Content, Liquid flow, Drying or Dehydration, Thermogravimetry, Suction, Capillary Effect, Permeability, Liquid Absorption or Rehydration, Reversibility, Subjectivity, Subjective-Objective, Perception, Individuality (Identification, Authentication), Sex, Age, Time, Time of Death, Color Space, Monitoring, Spectral Curves, Crown Curvature, Layering, Pulp, Dentine, Enamel, Size, Dimensioning, Weight, Structure, Paradox, Learning, Reconstruction, Simulation, Superimposition, Influencing Factors, Neural Network, Dental Clock, Tooth Memory.'For the first time, André Hoffmann systematically researched the tooth color and its origin. This book shows an excerpt of this systematic original research at human teeth and dental shade guides with high-precision measuring systems and high-precision positioning systems (self-developments) in vitro - with the highest precision. Due to his basic scientific research, the pioneer in the field of photonics was able to quantify and isolate manifold factors influencing the color of teeth. All these influencing factors are investigated on moist, drying, drier (various specific dehydration and rehydration states) and dry teeth based on the brightness (L\*), on color measurement values, such as a\*, b\* (CIELAB), C\*, h, (CIELCH), DeltaE, on the metamerism index, on spectral values and curves, tabs of dental shade guides and on tooth color spaces .As part of this exploration, phenomena (e.g. changes and breaks in behaviour as well as highly individual developments in color values, paradoxes between the values of subjective determination using tooth shade patterns and the values of objective measurements) were identified and insights into the very complex color dynamics through dehydration and rehydration were shown (up to more than >8 days). The development of the individual color measurement values was based on the liquid flow through the tooth and its tissues, in particular during drying and rehydration, and gave information about dynamics and the temporal extent of these processes.On the basis of this data, Hoffmann had developed several methods for research and practice, suggestions for feasible innovations, such as monitoring of dental treatment to protect against pulp damage based on drying, and reconstructing the color of naturally moist teeth on those that have already dried, the identification of the living and the dead, human and animals via the 'dental fingerprint' and a novel method of measuring the time of death for forensic medicine. He also described a time limit of drying up to which relatively natural, suitable color values and shade matching results can be obtained and after which no color determination should be carried out; and he established the rehydration time after the end of the drying or dental treatment, which must be waited in order to regain a natural tooth color and to get correct values and results again.His findings also show that teeth are able to store information on, for example, the condition (liquid content, color values) and the time within the drying and liquid re-absorption chronology. The author articulates a 'dental chronometer' ('tooth clock'), 'dental data store' ('tooth data store') and a 'dental memory' ('tooth memory') and believes that significant progress in this area may include and could be achieved via a neural network for color measurement apparatus. …

Codice articolo 9783340000145

Titolo
Systematic Research and Analysis of the Origin of Color, Reflection Spectra and Influencing Factors : On Layered and Complex Materials with Different Degrees of Liquid Contents
Autore
André Hoffmann
Editore
Hoffmann
Anno di pubblicazione
2000
Condizione
Neu
Rilegatura
Taschenbuch
Lingua
inglese
ISBN 10
334000014X
ISBN 13
9783340000145
Peso dell'articolo
623 grammi
Dimensioni
210x10x9 mm

AHA-BUCH GmbH

Einbeck, Germania

Venditore con 5 stelle

Venditore AbeBooks dal 14 agosto 2006

Tariffe di spedizione da Germania a U.S.A.

ArticoloDa 7 a 10 giorni lavorativiDa 5 a 7 giorni lavorativi
Primo articoloEUR 35,00EUR 45,00
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