Results 91 to 100 of about 9,631,849 (193)
Forbidden subgraph colorings and the oriented chromatic number
, 2013 We present an improved upper bound of O(d1+1m−1) for the (2,F)-subgraph chromatic number χ2,F(G) of any graph G of maximum degree d. Here, m denotes the minimum number of edges in any member of F .
Aravind, N R, Subrahmanyam, C R
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Plant Biology, EarlyView.This graphical abstract illustrates our systematic site‐saturation mutagenesis at the Ser118 position of the AM1_1499g1 GAF domain. By replacing this single residue, we generated a diverse array of variants with distinct spectral properties, demonstrating the remarkable molecular plasticity of cyanobacteriochromes and their customizability for ...
A. Yoneda, T. Suzuki, R. Narikawa
wiley +1 more source
On the oriented chromatic number of Halin graphs
, 2005 International audienceAn oriented k-coloring of an oriented graph G is a mapping c from V(G) to { 1, 2, \ldots , k} such that (i) if xy \in E(G) then c (x) \neq c(y) and (ii) if xy, zt \in E(G) then c(x) = c(t) implies c(y) \neq c(z).
Sopena, Eric, Hosseini Dolama, Mohammad
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A systematic color correction pipeline for controlled‐environment imaging
The Plant Phenome Journal, Volume 9, Issue 1, December 2026.ABSTRACT We present a stepwise color correction (CC) pipeline for controlled imaging environments. The workflow integrates flat‐field correction (FFC), gamma correction, and white‐balance correction, followed by a color‐mapping (CM) stage using machine‐learning regression—linear, partial least squares, and neural networks (NNs)—to deliver reliable CC ...
Collins Wakholi +7 more
wiley +1 more source
Shift graphs, chromatic number and acyclic one-path orientations
Discrete MathematicsSome minor added discussions and an improvement of the previous bound in Theorem ...
openaire +4 more sources
High‐throughput image‐based phenotyping of soybean hilum color
The Plant Phenome Journal, Volume 9, Issue 1, December 2026.Abstract Hilum color in soybean (Glycine max [L.] Merr.) is an important morphological trait influencing market classification and seed quality traits, yet its phenotyping is largely subjective, relying on visual inspection and assignment to one of eight color classes. This study developed an image‐based high‐throughput pipeline to measure and classify
Katherine Fortune +2 more
wiley +1 more source
The Plant Phenome Journal, Volume 9, Issue 1, December 2026.Abstract Multispectral three‐dimensional (3D) imaging offers substantial potential for plant phenotyping, yet manual segmentation of plant organs remains a bottleneck in breeding programs. We developed a color‐based filtering workflow for faba bean (Vicia faba L.) point clouds that optimizes lower and upper thresholds of spectral indices and broadband ...
Lennart Scheer +6 more
wiley +1 more source
An empirical three-dimensional metric field for color space. [PDF]
J VisKoenderink JJ +3 more
europepmc +2 more sources
The Plant Phenome Journal, Volume 9, Issue 1, December 2026.Abstract Lettuce (Lactuca sativa L.) exhibits pronounced genotype and environment‐dependent growth variation, making early, non‐destructive single‐plant biomass prediction critical for breeding. However, harvest‐based measurements fail to capture growth dynamics.
Görkem Eren Özdemir +8 more
wiley +1 more source
Pushable chromatic number of graphs with degree constraints [PDF]
, 2019 Pushable homomorphisms and the pushable chromatic number $\chi_p$ of oriented graphs were introduced by Klostermeyer and MacGillivray in 2004. They notably observed that, for any oriented graph $\overrightarrow{G}$, we have $\chi_p(\overrightarrow{G ...
Paul, Soumyajit +6 more
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