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Dissertations / Theses on the topic 'Kubelka-Munk'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Westland, S. "The optical properties of printing inks." Thesis, University of Leeds, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383339.

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2

Ferreira, Marta Sofia dos Anjos. "Aplicação do modelo de Kubelka-Munk à análise de filmes semicondutores." Master's thesis, Universidade de Aveiro, 2009. http://hdl.handle.net/10773/2632.

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Mestrado em Engenharia Física<br>Com este trabalho, pretendeu-se efectuar a caracterização de algunsparâmetros ópticos de filmes semicondutores, recorrendo a medidas dereflectância difusa, com o objectivo principal de determinar a energia de hiatodesses materiais. Desenvolveu-se um algoritmo computacional com base no modelo de Kubelka-Munk, modificando as expressões originais de acordo com as característicasdo filme e do tipo de iluminação utilizado. Optimizaram-se os resultados,aplicando o método do gradiente espectral projectado. A partir deste método,obtiveram-se os valores dos parâmetros d

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3

Gonçalves, Ítalo Gomes. "Determinação da concentração de contaminantes no caolim através da teoria de Kubelka-Munk." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2009. http://hdl.handle.net/10183/17160.

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O caolim é uma argila utilizada em diversos ramos da indústria: papel, tintas, plásticos, borrachas, produtos farmacêuticos, cosméticos e alimentícios, entre outros. Os caolins da região amazônica estão entre os melhores do mundo e as suas reservas estão entre as mais abundantes. Apesar de a sua lavra ser relativamente simples e barata, o processamento do caolim pode ser problemático em algumas ocasiões devido à presença de minerais contaminantes, principalmente hematita, goethita e anatásio. A alvura, principal parâmetro de qualidade do produto, é insuficiente para detectar a presença destes

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4

Silva, e. Souza Cristiane Aparecida. "Filmes compositos de fosfato de aluminio e latex = morfologia e propriedades oticas." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/250326.

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Orientador: Fernando Galembeck<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-08-15T06:51:39Z (GMT). No. of bitstreams: 1 SilvaeSouza_CristianeAparecida_D.pdf: 8520514 bytes, checksum: 17e73481eda5f744b4ec360be3455823 (MD5) Previous issue date: 2009<br>Resumo: A morfologia de filmes compósitos preparados com fosfato de alumínio e látexes de poli(metacrilato de metila-co-acrilato de butila) e de poli(estireno-co-acrilato de butila) foi caracterizada por técnicas de microscopia eletrônica de transmissão e de varredura (TEM, SEM

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5

O'Brien, Patrick Michael. "A framework for digital watercolor." Texas A&M University, 2008. http://hdl.handle.net/1969.1/86068.

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This research develops an extendible framework for reproducing watercolor in a digital environment, with a focus on interactivity using the GPU. The framework uses the lattice Boltzmann method, a relatively new approach to fluid dynamics, and the Kubelka-Munk reflectance model to capture the optical properties of watercolor. The work is demonstrated through several paintings produced using the system.

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6

Jesus, Leandro Gustavo Mendes de. "Estimação do teor de cinzas da camada I do carvão do leão através da reflectância utilizando a teoria Kubelka-Munk." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/163403.

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O principal parâmetro de avaliação da qualidade de carvões para uso na geração de energia termoelétrica é o percentual de cinzas. Em uma planta de beneficiamento, saber o percentual de cinzas da alimentação, concentrado e rejeito é de suma importância para os ajustes nos equipamentos de concentração. No caso do carvão da camada I1 do depósito mineral do Leão a janela de tempo entre o ponto mais adequado para amostragem e o fim da campanha de beneficiamento não propicia que se conheça o teor de cinzas da alimentação do processo de beneficiamento. Em virtude disso, este trabalho tem como objetiv

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7

Carney, Melody Noelle. "The Impact of the Optical Phenomena of Color Adjustment Potential and Kubelka-Munk Layering of Dental Composite Resins on Modern Esthetic Dentistry." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1429403504.

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8

Mikhail, Sarah Shawky. "Optical Properties of Two Brands of Composite Restorative Materials and Confirmation of Theoretical Predictions for Layering." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1316436113.

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9

Dyer, Thomas J. "Elucidating the formation and chemistry of chromophores during kraft pulping." Diss., Available online, Georgia Institute of Technology, 2005, 2004. http://etd.gatech.edu/theses/available/ipstetd-1018/.

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10

Granberg, Hjalmar. "Optical Response From Paper : Angle-dependent Light Scattering Measurements, Modelling, and Analysis." Doctoral thesis, KTH, Production Engineering, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3629.

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11

Silva, Fernando Manuel Couto. "Bases de dados de formulações de cor para tintas decorativas." Master's thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/12584.

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Mestrado em Engenharia Química<br>A cor está presente em tudo o que nos rodeia, e é, na generalidade, um fator determinante em diversos acontecimentos e fenómenos, não somente sobre os que respeitam à atividade humana, mas dos seres vivos em geral. Na indústria das tintas é incontestável a importância que a cor apresenta, pois o sucesso dos produtos que dessa indústria resultam, passa, seguramente, pelas características da cor que apresentam. Sendo, portanto, vital para esta indústria o estudo das cores. Neste contexto a empresa CIN revela o interesse no estudo da cor, procedendo à criação de

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12

Gustafsson, Coppel Ludovic. "Whiteness and Fluorescence in Layered Paper and Board : Perception and Optical Modelling." Doctoral thesis, Mittuniversitetet, Institutionen för tillämpad naturvetenskap och design, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-17782.

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This thesis is about modelling and predicting the perceived whiteness of plain paper from the paper composition, including fluorescent whitening agents. This involves psychophysical modelling of perceived whiteness from measurable light reflectance properties, and physical modelling of light scattering and fluorescence from the paper composition. Existing models are first tested and improvements are suggested and evaluated. A colour appearance model including simultaneous contrast effects (CIECAM02-m2), earlier tested on coloured surfaces, is successfully applied to perceived whiteness. An ext

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13

Gustafsson, Coppel Ludovic. "Whiteness and Fluorescence in Paper : Perception and Optical Modelling." Licentiate thesis, Mittuniversitetet, Institutionen för naturvetenskap, teknik och matematik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-12143.

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This thesis is about modelling and predicting the perceived whiteness of plain paper from the paper composition, including fluorescent whitening agents. This includes psycho-physical modelling of perceived whiteness from measurable light reflectance properties, and physical modelling of light scattering and fluorescence from the paper composition. Existing models are first tested and improvements are suggested and evaluated. The standardised and widely used CIE whiteness equation is first tested on commercial office papers with visual evaluations by different panels of observers, and improved

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14

Dupuis, Guillaume. "Couleur de la matière picturale : caractérisation des pigments et des mélanges de pigments, effets induits par l'adjonction de liant et de charges." Phd thesis, Université Paris Sud - Paris XI, 2004. http://tel.archives-ouvertes.fr/tel-00010271.

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La spectroscopie de réflectance diffuse dans le domaine du visible est une technique paradoxalement rarement utilisée pour identifier les matériaux des couches picturales des oeuvres d'art. Quand elle est malgré tout mise en oeuvre, l'identification de pigments à partir de ce type de mesures repose toujours sur la comparaison avec une base de données spectrophotométriques de pigments de référence. Au sein du Centre de Recherche et de Restauration des Musées de France, la base de données est composée des spectres de réflectance de pigments purs, secs et en poudre. Une couche picturale est au co

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15

Junior, Washington Steagall. "Contribuição para o estudo da influência da espessura, cor, opacidade e marca comercial das porcelanas feldspáticas na propagação da luz visível, através da Teoria de Kubelka Munk e suas implicações na odontologia, para os intervalos de comprimento de onda de 410500nm e de 410700nm." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/23/23134/tde-11122009-102756/.

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O estudo da propagação da luz nas porcelanas é importante para entender seu comportamento óptico frente a situações clínicas como fotoativação de cimentos resinosos e sua resposta estética, quando observada sobre diferentes fundos. Este trabalho estudou a influência da espessura, cor, opacidade e marca comercial das porcelanas feldspáticas na propagação da luz visível, através da teoria de KubelkaMunk (KM), nos intervalos de comprimento de onda de 410500nm e de 410700nm. Foram confeccionados discos de 12,5mm por 1 mm de espessura de porcelana feldspática de duas opacidades, corpo (B) e corpo o

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16

Pandini, D. "STUDI PER LA MODELLIZZAZIONE DELLA RIFLETTANZA SPETTRALE NEGLI STRATI PITTORICI." Doctoral thesis, Università degli Studi di Milano, 2012. http://hdl.handle.net/2434/168396.

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Nowadays a lot of physical techniques are available in order to have information about an historical painting. They are able to know which chemical elements are present in the paint layer, or they are also able to show the pattern under the colored layer, but there is not a non-destructive technique able to study the artist technique of painting or the historical pigments used in order to obtain the particular nuance we can observe. In this thesis we study an evolution of the VIS-NIR-spectroscopic technique with these goals. In particular we start from a preliminary historical study of the a

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17

Kan, Jeremy Chia-wei, and 甘家葳. "Mathematical equations from the Kubelka-Munk differentials." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/55934985004070985812.

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碩士<br>中國文化大學<br>材料科學與製造研究所<br>88<br>Abstract MATHEMATICAL EQUATIONS FROM THE KUBELKA-MUNK DIFFERENTIALS by Jeremy Chia-Wei Kan The two-constant Kubelka-Munk (K/M) theory has been exploited in many industries including plastics, paint, cosmetics, textile, and paper. This theory was developed in 1931. Regardless its long-term applications in industries, the detailed derivations of the basic equations have not been published in the literature. All equations published are in the form of final results. In addition, based on the published discussi

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18

Hsun, Chu Yuan, and 朱元勳. "Application of Kubelka-Munk Theory to the Analysis of Optical Dot Gain in Inkjet Images." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/28509048625885811954.

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碩士<br>中國文化大學<br>材料科學與製造研究所<br>93<br>The objective of this work is to apply the Kubelka-Munk theory to analyze optical dot gain in inkjet halftone. Optical dot gain is a significant technical problem because it lowers the contrast of a halftone. By researching the details of relevant literature, this thesis finds that there is still no optical dot gain function being developed in imaging engineering. Thus, this research proposes a design to find that function. The design is mainly based on Kubelka-Munk theory and the assumption of optical dot gain being a part of the ink thickness.

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19

Chen, Chih Lang, and 陳志郎. "A Study of Computer Spectral Matching and Color Rendering on Offset Ink Using Kubelka-Munk Theory." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/08231961323016098123.

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碩士<br>中國文化大學<br>資訊傳播學系<br>98<br>In the publishing and textile industry, one of the most important process throughout the production lifecycle is the color combination of ink and dye. By relying on experienced workers’ manual judgment of color matching often result in inconsistency and inaccuracy of the colors produced. The Computer Color Matching system (in short CCM) is a color matching computational method which combines color reproduction theory, ink compatibility, and numerical analysis technologies to minimize the inconsistencies and to improve the color accuracy in colors production. Alt

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20

Beluze, Lionel. "Matériaux et systèmes électroactifs dans l'infrarouge." Phd thesis, 2004. http://pastel.archives-ouvertes.fr/pastel-00000911.

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L'étude d'une batterie optique flexible, capable de moduler sa réflexion dans l'infrarouge et basée sur la technologie PLiON, est présentée dans cette thèse. Dans une première partie, une étude du trioxyde de tungstène monohydraté en fonction de la morphologie du matériau a permis de comprendre et d'améliorer les performances. Le contraste observé sur un film de WO3.H2O est de 40 % (8-12 µm). Une deuxième partie du document analyse le choix de matériaux actifs pour obtenir un contraste important. En fonction du type de matériaux (métal ou semi-conducteur), l'influence de la nature, de la morph

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21

Bock, Sergej. "Neue Ansätze zur linearen und nichtlinearen optischen Charakterisierung molekularer und nanokristalliner Ensembles: Zusammenhang zwischen makroskopischer Funktion und Struktur auf mesoskopischer Längenskala technologisch relevanter Materialien." Doctoral thesis, 2020. https://repositorium.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-202010293646.

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Durch neue Ansätze zur Charakterisierung molekularer und nanokristalliner Materialien spiegelt die vorliegende Arbeit die Synergie von linearer Optik über Ultrakurzzeitphysik zur nichtlinearen Optik wider. Angefangen mit der linearen diffusen Reflektanz (Remission) zur Bestimmung des spektralen Reflexionsvermögens von Pulverpartikeln, erlaubt die hier gezeigte alternative Herangehensweise (s. Kapitel 2) nicht nur ein vereinfachtes Messen der Remission zur Analyse von Materialzusammensetzungen, Verunreinigungen und Co-Dotierungen, sondern eröffnet zudem über Monte-Carlo Simulationen, kom

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