Photochemical colour change for traditional watercolour pigments in low oxygen levels [PDF]
, 2014 An investigation for light exposure on pigments in low-oxygen environments (in the range 0–5% oxygen) was conducted using a purpose-built automated microfadometer for a large sample set including multiple samples of traditional watercolour pigments from ...
Caspers, C +5 more
core +1 more source
Une sonde photométrique pour l'analyse in situ : Principe, méthode, premiers essais [PDF]
, 1993 Certains composés dissous ne sont pas stables une fois prélevés hors de leur milieu. Pour éviter que l'information ne se perde entre le prélèvement et l'analyse, il est nécessaire d'effectuer cette dernière in situ.
Choouier, A. +5 more
core +1 more source
SPIRULINA SUBSALSA. Z15 IS AN ALTERNATIVE SOURCE OF PHYCOCYANIN FROM A NATIVE STRAIN OF MEXICO: PROSPECTION FOR FUNCTIONAL FOOD INGREDIENT AND BIOETHANOL PRODUCTION [PDF]
Proceedings on Engineering SciencesPhycocyanin (C-PC) is a bright blue color pigment found in cyanobacteria, which has been in high demand for its health benefits in the global market. It varies in quality according to its purity values and can be used in analytical, cosmetic, or food ...
Felipe de Jesus Bonilla-Ahumada +4 more
doaj +1 more source
Micro-fading spectrometry: investigating the wavelength specificity of fading [PDF]
, 2015 A modified microfading spectrometer incorporating a linear variable filter is used to investigate the wavelength dependence of fading of traditional watercolour pigments, dosimeters and fading standards at a higher spectral resolution and/or sampling ...
AL Dupont +17 more
core +1 more source
La fluorimétrie appliquée à la mesure du débit en milieu torrentie [PDF]
, 1993 L'utilisation de traçeurs pour la mesure des débits n'est pas un concept nouveau. Néanmoins les applications pratiques sont peu répandues, les méthodes au moulinet étant préférées, dans la plupart des cas, bien qu'elles s'avèrent souvent de mise en ...
Colon, M., Orand, A.
core +1 more source
Iron influence on dissolved color in lakes of the Upper Great Lakes States
PLOS ONE, 2019 Colored dissolved organic matter (CDOM), a major component of the dissolved organic carbon (DOC) pool in many lakes, is an important controlling factor in lake ecosystem functioning. Absorption coefficients at 440 nm (a440, m-1), a common measure of CDOM, exhibited strong associations with dissolved iron (Fediss) and DOC in 280 lakes of the Upper Great
Patrick L. Brezonik +7 more
openaire +4 more sources
Unraveling long-term changes in lake color based on optical properties of lake sediment
Science of The Total Environment, 2020 A number of boreal surface waters have become browner over the last two decades. Recovery from acid rain is regarded as an important driver for this lake color increase, indicating a general browner lake color in preindustrial times. However, the lack of long-term monitoring data makes it challenging to unravel historical changes in lake color. In this
Rohrlack, Thomas +3 more
openaire +4 more sources
Progress in lake water color remote sensing
Journal of Lake Sciences, 2009 We analyzed in detail the status quo of lake water color remote sensing from some aspects of satellite sensor, atmospheric correction, optical properties measurement, bio-optical model, radiative transfer model for the waters, and water quality parameter retrieval approach.
MA Ronghua +3 more
openaire +2 more sources
Arménien karmir, sogdien krmʾyr et hébreu karmīl « rouge » [PDF]
, 2016 International audienceArmenian karmir " red " has often been considered as deriving from East Iranian, thus speaking in favour of relations between Armenian and Sogdian, a Middle Iranian language spoken in considerable distance from Armenia.
Korn, Agnes
core +3 more sources
Everybody loves sugar:first report of plant feeding in triatomines [PDF]
, 2016 Background Triatomines, which are the vectors of Trypanosoma cruzi, have been considered to be exclusive blood feeders for more than 100 years, since the discovery of Chagas disease.
Diaz-Albiter, Hector M. +2 more
core +1 more source