Results 41 to 50 of about 1,439,788 (292)

Structural Colors Based on Amorphous Arrays Comprised Solely of Silica Particles

open access: yesApplied Sciences, 2020
In this study, structural colors were fabricated by producing an amorphous array with atypical silica particles. The colors were controlled by an array of silica particles with different sizes. In previous research, the process required inducement of the
Dae-San Choi   +2 more
doaj   +1 more source

All-Dielectric Gratings with High-Quality Structural Colors

open access: yesNanomaterials, 2023
We present a dual-layer hafnium dioxide (HfO2) grating capable of full-color modulation in the visible spectrum by leveraging the magnetic dipole resonance induced by the lower-layer HfO2 grating, while the upper-layer HfO2 grating serves as a refractive
Tongtong Wang   +10 more
doaj   +1 more source

Clusters at Half Hubble Time: Galaxy Structure and Colors in RXJ0152.7-1357 and MS1054-03

open access: yes, 2006
We study the photometric and structural properties of spectroscopically confirmed members in the two massive X-ray--selected z=0.83 galaxy clusters MS1054-03 and RXJ0152-1357 using three-band mosaic imaging with the Hubble Space Telescope Advanced Camera
B. P. Holden   +17 more
core   +1 more source

Relating basic properties of bright early-type dwarf galaxies to their location in Abell 901/902 [PDF]

open access: yes, 2009
We present a study of the population of bright early-type dwarf galaxies in the multiple-cluster system Abell 901/902. We use data from the STAGES survey and COMBO-17 to investigate the relation between the color and structural properties of the dwarfs ...
A. Böhm   +116 more
core   +2 more sources

Another look at color primitivism [PDF]

open access: yes, 2018
This article is on a precise kind of color primitivism, ‘ostensivism.’ This is the view that it is in the nature of the colors that they are phenomenal, non-reductive, structural, categorical properties.
Roberts, Pendaran
core   +2 more sources

Optical Surface Photometry of a Sample of Disk Galaxies. II Structural Components

open access: yes, 2000
This work presents the structural decomposition of a sample of 11 disk galaxies, which span a range of different morphological types. The U, B, V, R, and I photometric information given in Paper I (color and color-index images and luminosity, ellipticity,
Aguerri, J. A. L.   +3 more
core   +1 more source

Structural coloration in a fossil feather [PDF]

open access: yesBiology Letters, 2009
Investigation of feathers from the famous Middle Eocene Messel Oil Shale near Darmstadt, Germany shows that they are preserved as arrays of fossilized melanosomes, the surrounding beta-keratin having degraded. The majority of feathers are preserved as aligned rod-shaped eumelanosomes.
Vinther, Jakob   +4 more
openaire   +3 more sources

Observation of a uniform temperature dependence in the electrical resistance across the structural phase transition in thin film vanadium oxide ($VO_{2}$)

open access: yes, 2007
An electrical study of thin $VO_{2}$ films in the vicinity of the structural phase transition at $68^{0}C$ shows (a) that the electrical resistance $R$ follows $log (R)$ $\propto$ $-T$ over the $T$-range, $20 < T < 80 ^{0}C$ covering both sides of the ...
Golan G., R. G. Mani, S. Ramanathan
core   +1 more source

Chlorophylls and Bacteriochlorophylls: Biochemistry, Biophysics, Functions and Applications [PDF]

open access: yes, 2005
Supplementary material to this book contains the following Adobe-Writer (.pdf) files: an overview of the material, the color coding for the map on the title page), and supporting information for chapter 1, 14, 20, 22 and 30.
Grimm, Bernhard   +3 more
core   +2 more sources

The geometric structure of color

open access: yesJournal of Vision, 2015
Color is commonly described in terms of the three perceptual attributes-hue, saturation, and brightness-of which only hue has a qualitative nature, saturation and brightness being of a quantitative nature. A possible reason for such a phenomenological structure of the color manifold, and its geometric representation, are discussed.
openaire   +2 more sources

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