Results 31 to 40 of about 2,719,329 (156)
Hayati Journal of Biosciences, 2023 Actinobacteria are Gram-positive bacteria that can produce various secondary metabolites, including pigments that have potential as antioxidants. This study assessed the characteristics of yellowish-orange pigmented actinobacteria.
Farhana Halimah Rusyda +2 more
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Colour cluster analysis for pigment identification [PDF]
SPIE Proceedings, 2008 This paper presents image processing algorithms designed to analyse the colour CIE Lab histogram of high resolution images of paintings. Three algorithms are illustrated which attempt to identify colour clusters, cluster shapes due to shading and finally to identify pigments.
Martinez, Kirk, Goodall, Simon
openaire +2 more sources
International Journal of Research in Pharmaceutical Sciences, 2021 A pigment is a substance that is substantially used in different industries that come in a wide range of coloration and few of which are soluble in water. Bacterial pigments have many applications in the modern day life.
Sanchita Choubey +2 more
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Automatic identification of artistic pigments by Raman spectroscopy using fuzzy logic and principal component analysis [PDF]
, 2006 This work offers an automatic identification system of Raman spectra of artistic pigments. The proposed methodology is based on a fuzzy logic system, and uses principal component analysis to reduce redundancies in data and the correlation operator as an ...
Castanys, M. +2 more
core +1 more source
Fermentation, 2022 Pigments from bacteria, fungi, yeast, cyanobacteria, and microalgae have been gaining more demand in the food, leather, and textile industries due to their natural origin and effective bioactive functions.
Chatragadda Ramesh +3 more
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Heritage Science, 2019 In conservation science, the identification of painting materials is fundamental for the study of artists’ palettes, for dating and for understanding on-going degradation phenomena.
Alessia Artesani +5 more
doaj +1 more source
The separation and identification of phytoplankton pigments from the adjacent waters of Great Wall Station, Antarctica [PDF]
, 1995 This paper presents separation and identification of the pigments of the phytoplankton samples collected from the adjacent waters (62°12.5'S, 58°53'W - 62°14.5'S, 58°57'W) of Great Wall Station, Antarctica during March 1988 - February 1989 by using thin ...
Peiding, Lu, Fengpeng, Huang, Baohua, Li
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The Application of Cathodoluminescence (CL) for the Characterization of Blue Pigments
HeritageThe combined application of Cathodoluminescence (CL) with Scanning Electron Microscopy (SEM) on paintings and painted surfaces has the potential to identify both organic and inorganic pigments on a micrometre or even nanometre scale.
Eleni Palamara +5 more
doaj +1 more source
Colour performance of ceramic nano-pigments [PDF]
, 2009 Ceramic nano-pigments have been recently developed for ink-jet printing decoration of ceramic tiles by the quadrichromy technology (cyan, magenta, yellow, and black colours).
Guarini, Guia +9 more
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Natural or synthetic? Simultaneous Raman/luminescence hyperspectral microimaging for the fast distinction of ultramarine pigments [PDF]
, 2020 Genuine ultramarine has been one of the most precious blue pigments employed since ancient times. It used to be obtained by crushing and grinding the lapis lazuli rock and selectively extracting the blue mineral lazurite. Since 1828, when it was produced
González-Cabrera, María +3 more
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