Results 31 to 40 of about 338,421 (294)
The color of greater flamingo feathers fades when no cosmetics are applied
Ecology and Evolution, 2021 Greater flamingos use cosmetic coloration by spreading uropygial secretions pigmented with carotenoids over their feathers, which makes the plumage redder.
Maria Cecilia Chiale +9 more
doaj +1 more source
Computationally Efficient Robust Color Image Watermarking Using Fast Walsh Hadamard Transform
Journal of Imaging, 2017 Watermark is the copy deterrence mechanism used in the multimedia signal that is to be protected from hacking and piracy such a way that it can later be extracted from the watermarked signal by the decoder.
Suja Kalarikkal Pullayikodi +3 more
doaj +1 more source
Bessel Terahertz Pulses from Superluminal Laser Plasma Filaments
Ultrafast Science, 2022 Terahertz radiation with a Bessel beam profile is demonstrated experimentally from a two-color laser filament in air, which is induced by tailored femtosecond laser pulses with an axicon.
Zhelin Zhang +8 more
doaj +1 more source
Dynamics of interacting diseases [PDF]
, 2014 Current modeling of infectious diseases allows for the study of complex and realistic scenarios that go from the population to the individual level of description.
Meloni, Sandro +3 more
core +3 more sources
Recovering neugebauer colorant reflectances and Ink‐spreading curves from printed color images [PDF]
Color Research & Application, 2013 Spectral reflection prediction models, although effective, are impractical for certain industrial applications such as self‐calibrating devices and online monitoring because their calibration requires specific color‐constant calibration patches. Using the CMYK Ink‐Spreading enhanced Yule‐Nielsen‐modified Spectral Neugebauer model (IS‐YNSN), we propose ...
Thomas Bugnon, Roger D. Hersch
openaire +1 more source
Neon color spreading in dynamic displays: Temporal factors
Journal of Vision, 2013 When a red star is placed in the middle of an Ehrenstein figure so as to be collinear with the surrounding black rays, a reddish veil is perceived to fill the white center. This is called neon color spreading. To better understand the processes that give rise to this phenomenon, we studied the temporal properties of the effect.
Cicchini, M., Spillmann, Lothar
openaire +4 more sources
P1-8: The Effect of Spatial Frequency, Color, and Width of Interval on Chromatic Induction
i-Perception, 2012 Chromatic induction refers to changes of color that appear when a color is observed in the presence of other colors. Chromatic contrast and chromatic assimilation are included in chromatic induction.
Hannim Cha, Jung Woo Hyun
doaj +1 more source
Journal of Information Display, 2021 The luminance and color properties of backlight units with quantum-dot (QD) films were investigated through experimentation and optical simulation. Red and green QD films were arranged in four different configurations above and below the light guide ...
Gi Jung Lee +5 more
doaj +1 more source
Discrimination of fish oil and mineral oil slicks on sea water [PDF]
, 1969 Fish oil and mineral oil slicks on sea water can be discriminated by their different spreading characteristics and by their reflectivities and color variations over a range of wavelengths.
Mac Dowall, J.
core +1 more source
Molecular bases of circadian magnesium rhythms across eukaryotes
FEBS Letters, EarlyView.Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley +1 more source