Results 41 to 50 of about 191,228 (312)
Evidence of late Quaternary environmental change in a continental east Antarctic lake from lacustrine sedimentary pigment distributions [PDF]
, 2005 A sediment core from Progress Lake, one of the oldest lacustrine sequences in East Antarctica, contains distinct zones dating from a previous interglacial (most likely Marine Isotope Stage 5e, c.
Hodgson, D A, Keely, B J, Squier, A H
core +2 more sources
Pigment Identification of Ancient Wall Paintings Based on a Visible Spectral Image
Journal of Spectroscopy, 2020 Many ancient wall paintings are confronted with the threat of irreversible damages and in urgent requirement of restoration. This work provides the superpixel segmentation method and pigment identification method for the visible spectral image of ancient
Junfeng Li +4 more
doaj +1 more source
Remote multispectral imaging with PRISMS and XRF analysis of Tang Tomb paintings [PDF]
, 2011 PRISMS (Portable Remote Imaging System for Multispectral Scanning) is a multispectral/hyperspectral imaging system designed for flexible in situ imaging of wall paintings at high resolution (tens of microns) over a large range of distances (less than a ...
Lange, R, Liang, H, Zhang, Q
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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
doaj +1 more source
Pyomelanin biosynthetic pathway in pigment-producer strains from the pandemic Acinetobacter baumannii IC-5 [PDF]
Memorias do Instituto Oswaldo Cruz, 2020 BACKGROUND Acinetobacter baumannii outbreaks have been associated with pandemic International Clones (ICs), but the virulence factors involved with their pathogenicity are sparsely understood.
Érica Fonseca +4 more
doaj +1 more source
Non-invasive investigations of a wall painting using optical coherence tomography and hyperspectral imaging [PDF]
, 2011 Multispectral and hyperspectral imaging are efficient methods of measuring spectral reflectance at high spatial resolution. This non-invasive technique has been applied to the imaging of paintings over the last 20 years.
Howard, H +3 more
core +1 more source
Automatic classification system of Raman spectra applied to pigments analysis [PDF]
, 2016 Raman spectroscopy is one of the few non-destructive techniques capable of identifying pigments in art works. Raman spectra contain powerful information that can be used to identify unknown compounds and their chemical structures.
González Vidal, Juan José +2 more
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CyTA - Journal of Food, 2023 Natural pigments derived from microorganisms have many advantages and are widely studied in the food industry. A filamentous fungus, DBFL05, was identified as Aspergillus ustus, which produces a bright and abundant brown pigment.
Minghui Zhou +4 more
doaj +1 more source
Plants, 2023 The possibility of pigment detection and recognition in different environments such as solvents or proteins is a challenging, and at the same time demanding, task.
Roman Y. Pishchalnikov +11 more
doaj +1 more source
MULTI-INSTRUMENTAL IDENTIFICATION OF ORPIMENT IN ARCHAEOLOGICAL MORTUARY CONTEXTS [PDF]
, 2014 Indexación: Web of Science; Scielo.This paper reports on an unknown yellowish mineral compound found in an archaeological context from Chorrillos cemetery (Calama, Chile) dating to the Early Formative period (800 - 200 B.C.).
ARRIAZA, BERNARDO +6 more
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