Results 61 to 70 of about 1,114,847 (341)
Avian Research, 2020 Background Parrots (Psittacidae Family) are one of the most colorful groups of birds in the world, their colors produced both structurally and via unusual pigments (psittacofulvins). Most species are considered to be monogamous, and many have been viewed
Macarena Morales +3 more
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Chromatic sums for colorings avoiding monochromatic subgraphs
Discussiones Mathematicae Graph Theory, 2013 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kubicka Ewa +2 more
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Memory for the color of non‐monochromatic lights [PDF]
Color Research & Application, 2006 AbstractThe aim of this work was to explore the limits of memory for the hue of coloured illumination using nonspectral colours. Eighty‐four undergraduate optometry students with normal colour vision as assessed by the Ishihara 38 plate test, were given 10 s to memorize the hue of a luminous surface (luminance 120 cd m−2), subtending 22 by 18 degrees ...
D'Ath, P., Thomson, W., Wilkins, A. J.
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Advanced Functional Materials, EarlyView.This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous
Mingfeng Xu +5 more
wiley +1 more source
Optimization of Color Conversion for Face Recognition
EURASIP Journal on Advances in Signal Processing, 2004 This paper concerns the conversion of color images to monochromatic form for the purpose of human face recognition. Many face recognition systems operate using monochromatic information alone even when color images are available.
Jones Creed F, Abbott A Lynn
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Journal of the Indonesian Tropical Animal Agriculture, 2016 The liver of female poultry has a vital role as an organ for biosynthesis of the yolk precursor and has a greater chance of experiencing cellular damages.
K. Kasiyati +3 more
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Large Monochromatic Components in Two-Colored Grids
SIAM Journal on Discrete Mathematics, 2007 Abstract Let D n d denote the d-dimensional grid with diagonals, that is, the graph with vertex set { 1 , 2 , … , n } d and with edges connecting every two vertices that differ by at most 1 in every coordinate. We prove that for an arbitrary 2-coloring of the vertices of D n d there exists a monochromatic ...
Jiří Matoušek, Aleš Přívětivý
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Biocontamination and particulate detection system [PDF]
, 1979 A method for determining the characteristics and amount of microscopic contaminants lodged on a photographed surface is disclosed. An image enhanced full color photographic negative and print are taken of the contaminated surface.
Jacobs, J. M.
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Synchrotron Radiation for Quantum Technology
Advanced Functional Materials, EarlyView.Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader +10 more
wiley +1 more source
Collision Times in Multicolor Urn Models and Sequential Graph Coloring With Applications to Discrete Logarithms [PDF]
, 2016 Consider an urn model where at each step one of $q$ colors is sampled according to some probability distribution and a ball of that color is placed in an urn. The distribution of assigning balls to urns may depend on the color of the ball.
Bhattacharya, Bhaswar B.
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