Results 61 to 70 of about 58,831 (310)
Advanced Functional Materials, EarlyView.Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum +5 more
wiley +1 more source
Local Graph Coloring and Index Coding
, 2013 We present a novel upper bound for the optimal index coding rate. Our bound uses a graph theoretic quantity called the local chromatic number. We show how a good local coloring can be used to create a good index code.
Dimakis, Alexandros G. +2 more
core +1 more source
Advanced Functional Materials, EarlyView.Cephalopod‐inspired photonic microparticles with dynamic structural coloration are fabricated via confined self‐assembly of linear block copolymers into ellipsoids containing stacked lamellae. Embedded superparamagnetic nanoparticles enable rapid magnetic alignment, restoring vivid, angle‐dependent color.
Gianluca Mazzotta +8 more
wiley +1 more source
About Berge–Füredi’s conjecture on the chromatic index of hypergraphs
Comptes Rendus. MathématiqueWe prove that the chromatic index of a hypergraph $\mathcal{H}$ satisfies the Berge–Füredi conjectured bound $\mathrm{q}(\mathcal{H}\le \Delta \bigl ([\mathcal{H}_2]\bigr )+1$ under certain hypotheses on the antirank $\mathrm{ar}(\mathcal{H})$ or on the ...
Bretto, Alain +2 more
doaj +1 more source
On the mod $k$ chromatic index of graphs [PDF]
Discrete Mathematics & Theoretical Computer ScienceFor a graph $G$ and an integer $k\geq 2$, a $\chi'_{k}$-coloring of $G$ is an edge coloring of $G$ such that the subgraph induced by the edges of each color has all degrees congruent to $1 ~ (\mod k)$, and $\chi'_{k}(G)$ is the minimum number of colors ...
Oothan Nweit, Daqing Yang
doaj +1 more source
Star 5-edge-colorings of subcubic multigraphs
, 2017 The star chromatic index of a multigraph $G$, denoted $\chi'_{s}(G)$, is the minimum number of colors needed to properly color the edges of $G$ such that no path or cycle of length four is bi-colored.
Lei, Hui +3 more
core +1 more source
Approximating the chromatic index of multigraphs [PDF]
Journal of Combinatorial Optimization, 2009 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zang, W, Chen, G, Yu, X
openaire +4 more sources
Advanced Functional Materials, EarlyView.We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim +6 more
wiley +1 more source
Strong edge-colorings for k-degenerate graphs [PDF]
, 2013 We prove that the strong chromatic index for each $k$-degenerate graph with maximum degree $\Delta$ is at most $(4k-2)\Delta-k(2k-1)+1$
Yu, Gexin
core
Triblock Polymer Engineering Enables Hydration‐Rich, High‐Performance, Fouling‐Resistant Interfaces
Advanced Functional Materials, EarlyView.A molecularly engineered triblock polymer (PHZ) rapidly reorganizes into a hydration‐rich interfacial layer on diverse surfaces, strongly suppressing hydrophobic attraction and fouling. The triblock polymer provides robust energy and steric barriers to oily foulants, enabling high‐performance antifouling at ultralow dosage.
Chenyu Qiao +6 more
wiley +1 more source