Results 31 to 40 of about 1,099,712 (300)
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
Close binary stars in the solar-age Galactic open cluster M67 [PDF]
, 2009 We present multi-colour time-series CCD photometry of the solar-age galactic open cluster M67 (NGC 2682). About 3600 frames spread over 28 nights were obtained with the 1.5 m Russian-Turkish and 1.2 m Mercator telescopes.
Akalin +83 more
core +6 more sources
Colour changes in pulses fumigated with different metal phosphide formulations
Julius-Kühn-Archiv, 2018 Many phosphine-emitting products are used globally to control insect pests in dried vegetables, grains and pulses. However, variation in phosphide formulations is associated with colour change in many pulses. This study evaluated the effect of fumigation
Jakob, Gerhard +2 more
doaj +1 more source
Turkish Journal of Agriculture: Food Science and Technology, 2020 Colour is an essential parameter at product quality control stages, and finally, it is necessary for the consumer marketing decision. It is possible to damage the products during the process from collection to storage. Also, it is a well-known condition,
Dilara Gerdan +2 more
doaj +1 more source
Experimental design of photo-Fenton process decolorization of Reactive Red 120 by using mathematical statistics models [PDF]
Journal of Graphic Engineering and Design, 2018 A statistical design of experiments was used to evaluate the potential use of clay catalyst (CuOFeB) during photo-Fenton process in which the concentration of hydrogen peroxide (H2O2), catalyst loading and pH values were selected as effective ...
Gordana Pucar Milidrag +6 more
doaj +1 more source
, 2000 Detecting colour changes of a gravitational microlensing event induced by the limb-darkened extended source effect is important to obtain useful information both about the lens and source star.
Han, Cheongho, Park, Seong-Hong
core +2 more sources
Colour Vision: Adapting to change [PDF]
Current Biology, 1995 The colours we see reflect not only the light wavelengths presently being detected, but also those already received. To understand colour constancy therefore requires an understanding of adaptation in the visual system.
openaire +2 more sources
Synthesis and characterization of chromogenic fluoran compounds containing 4-ketoquinazolinone moieties [PDF]
Journal of the Serbian Chemical Society, 2004 Chromogenic fluoran compounds containing 4-ketoquinazolinone were synthesized by reacting 2-(4-diethylamino-2-hydroxybenzoyl)benzoic acid with various substituted 4-ketoquinazolinones in the presence of sulfuric acid.
RANJAN G. PATEL +2 more
doaj +3 more sources
A study on the printability properties of alkali-sized recycled papers
Science and Engineering of Composite Materials, 2016 Recycled handsheets were prepared from old newspapers and old office papers with internal sizing applications of alkyl ketene dimer (AKD) emulsion at 0.5%, 1.0% and 1.5% addition levels as received basis.
Aydemir Cem
doaj +1 more source
Colour change and camouflage in juvenile shore crabs Carcinus maenas
Frontiers in Ecology and Evolution, 2014 Camouflage is perhaps the most widespread anti-predator defense in nature, with many different types thought to exist. Of these, resembling the general color and pattern of the background (background matching) is likely to be the most common.
Martin eStevens +2 more
doaj +1 more source