Results 11 to 20 of about 2,826,109 (303)

A Novel Spectral Matching Approach for Pigment: Spectral Subsection Identification Considering Ion Absorption Characteristics

Remote Sensing, 2020
Background: Hyperspectral technology has made it possible to perform completely non-invasive investigations on pigment analysis, in particular, on pigment identification.
Yiyi Liu, Shuqiang Lyu, Miaole Hou, Zhenhua Gao, Wanfu Wang, Xiao Zhou   +5 more
doaj   +4 more sources

Identification of black sturgeon caviar pigment as eumelanin [PDF]

Food Chemistry, 2022
Reported herein is the purification of the pigment of black sturgeon caviar and its unambiguous identification as a typical eumelanin by means of chemical degradation coupled with electron paramagnetic resonance (EPR) evidence. HPLC and LC-MS analysis of
d'Ischia M., Benning K., Nesbeth D. N., D'Errico G., Napolitano A., Setaro B., Panzella L., Gerardino D'Errico, Darren N. Nesbeth, Kenneth Benning, Marco d'Ischia, Lucia Panzella, Brunella Setaro, Alessandra Napolitano   +13 more
core   +7 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, Dehong Xie, Miaoxin Li, Shiwei Liu, Chun’ao Wei   +4 more
doaj   +2 more sources

Correlation of Visible Reflectance Spectrometry and Portable Raman Data for Red Pigment Identification

Heritage
The accurate identification of pigments is of principal relevance in the field of cultural heritage conservation and restoration practices. In this preliminary study, a first attempt to set up a procedure for accurate red pigment identification, based on
Anna M. Gueli, Rosaria Galvagno, Adriana Incardona, Eleonora Pappalardo, Giuseppe Politi, Giuseppe Paladini, Giuseppe Stella   +6 more
doaj   +2 more sources

Hyperspectral Analysis of Pigment Identification and Abundance Inversion in the Dome of China’s Yungang Grotto 7 [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Most of the grotto temples have undergone long-term weathering and multiple repainting campaigns, so accurate identification of the composition and spatial abundance of surface pigments is an important foundation for pigment characterization and ...
J. Yan, J. Yan, S. Lyu, S. Lyu, B. Ning, L. Li, M. Hou   +6 more
doaj   +2 more sources

Identification of the orange pigment in Nonomuraea gerenzanensis and development of a pigment-free mutant

AMB Express
The secondary metabolite A40926, a precursor to the glycopeptide antibiotic dalbavancin, is synthesized by the rare actinomycete Nonomuraea gerenzanensis (N. gerenzanensis) within the pharmaceutical industry.
Yutong Cheng, Wen Gao, Shi Shi, Fubo Han, Huijun Dong   +4 more
doaj   +3 more sources

Identification of a Red Pigment-Producing Strain of Arthrobacter spp. and the Stability of Its Pigments

Microorganisms
With the rise of environmental protection and health topics in recent years, microbial production of red pigments has gradually become a research hotspot. Red pigment possesses biological properties such as anticancer and antioxidant activities and has a
Jinjun Wang, Mingliang Yang, Xinru Gao
doaj   +4 more sources

Paul Delvaux: The Study of Nine Paintings by Non-Invasive Methods

Heritage, 2023
Paul Delvaux (1897–1994) was a Belgian Surrealist painter known for his dreamlike and enigmatic compositions. His works often featured nude or semi-nude women and deserted urban landscapes, evoking a sense of mystery and intrigue.
Edène Derzelle, David Strivay, Antoine Defeyt, Sarah-Jane Klein, Francisca Vandepitte, Catherine Defeyt   +5 more
doaj   +1 more source

COMPUTER-ASSISTED PIGMENT IDENTIFICATION IN ARTWORKS

, 2007
False-color infrared represents a well known method for non-invasive pigment identification in artworks. This is particularly useful in the field of conservation of cultural heritage as it provides useful information about painting materials, techniques,
Rocco Mazzeo, MAZZEO, ROCCO, Marco Roccetti, Giorgia Sciutto, ROCCETTI, MARCO, Claudio E. Palazzi, SCIUTTO, GIORGIA, M. ROCCETTI, G. SCIUTTO, PALAZZI, CLAUDIO ENRICO, R. MAZZEO   +10 more
core   +3 more sources

An Introduction to the Electron Paramagnetic Resonance Spectral Library of Pigments

Heritage, 2022
A library cataloguing the electron paramagnetic resonance (EPR) spectra of artists’ pigments has been created. It contains spectral data collected using several spectrometers that operate at different frequencies for, currently, 51 pigments.
Olivia R. Kuzio, Joseph P. Hornak
doaj   +1 more source