Results 101 to 110 of about 57,891 (276)
Chromatic Index of Hypergraphs and Shannon’s Theorem
European Journal of Combinatorics, 2000 Let \(G\) be a multigraph without loops and let \(\chi '(G)\) be its chromatic index. A classical theorem of Shannon states that \(\chi '(G)\leq \lfloor \frac{3}{2}\Delta (G)\rfloor \). For a hypergraph \(H\), the 2-section of \(H\) is a multigraph \([H]_{2}\) without loops on the vertex set \(V(H)\), with \(k\) parallel edges between vertices \(u ...
openaire +2 more sources
Do's and Don'ts When Visiting Circularly Polarized Luminescence
Advanced Optical Materials, EarlyView.This perspective presents our insights into the principles, challenges, and opportunities of circularly polarized luminescence (CPL). Highlighting key concepts such as the dissymmetry factor (glum) and molecular design strategies, we discuss advances in CPL efficiency, emerging NIR emitters, solid‐state applications, and the growing role of theory and ...
Rafael G. Uceda +9 more
wiley +1 more source
Design of Molecular Lanthanide‐Based Quantum Light Sources for On‐Chip Integration
Advanced Optical Materials, EarlyView.Rigid lanthanide complexes with a tetrapodal tris‐benzimidazolic ligand exhibit narrow, well‐resolved visible/NIR emission profiles suitable for quantum photonics. The EuL complex features an exceptionally sharp 5D₀→7F₀ transition enabled by an LMCT mechanism that suppresses inhomogeneous broadening.
Silvia Bonabello +10 more
wiley +1 more source
Surface behaviors of EPDM rubber and mechanism of nano anti-aging agent under UV condition
工程科学学报, 2015 Based on ultraviolet (UV) accelerated aging tests, aging processes were tracked to study the effects of nano-TiO2 antiaging agent on the surface aging behaviors and anti-aging ability of ethylene-propylene-diene monomer (EPDM).
CHEN Hong-ting +5 more
doaj +1 more source
Star Chromatic Index of Halin Graphs
, 2021 A star edge coloring of a graph $G$ is a proper edge coloring of $G$ such that every path and cycle of length four in $G$ uses at least three different colors. The star chromatic index of $G$, is the smallest integer $k$ for which $G$ admits a star edge coloring with $k$ colors.
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Star Chromatic Index of Subcubic Graphs
Electronic Notes in Discrete Mathematics, 2016 Abstract The star chromatic index of a graph G is the minimum number of colors needed to properly color the edges of G so that no path or cycle of length four is bi-colored. In this paper, we show that every subcubic graph with maximum average degree less than 11 5 can be star edge colored with at most five colors.
null Kavita Pradeep +1 more
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TacScope: A Miniaturized Vision‐Based Tactile Sensor for Surgical Applications
Advanced Robotics Research, EarlyView.TacScope is a compact, vision‐based tactile sensor designed for robot‐assisted surgery. By leveraging a curved elastomer surface with pressure‐sensitive particle redistribution, it captures high‐resolution 3D tactile feedback. TacScope enables accurate tumor detection and shape classification beneath soft tissue phantoms, offering a scalable, low‐cost ...
Md Rakibul Islam Prince +3 more
wiley +1 more source
A Degradable Bioinspired Flier with Aerogel‐Based Colorimetric Sensors for Environmental Monitoring
Advanced Science, EarlyView.Biodegradable fliers are developed inspired by Tipuana tipu samaras, integrating cellulose nanocrystal aerogel (CNCa) sensors loaded with natural dyes for pH and ammonia detection. The lightweight, degradable fliers mimic natural morphology and aerodynamics, offering an eco‐friendly, scalable solution for in situ environmental monitoring after passive ...
Gianpaolo Gallo +4 more
wiley +1 more source
On graphs with prescribed chromatic number and subset index [PDF]
Contributions to Mathematics, 2022 Gary Chartrand +2 more
doaj +1 more source
Endocytic Control of Cell‐Autonomous and Non‐Cell‐Autonomous Functions of p53
Advanced Science, EarlyView.NUMB Ex3‐containing isoforms localize to the plasma membrane, where they recruit p53 through SNX9 and direct it to multivesicular bodies and exosomes. Exported p53 is taken up by neighboring cells and activates nuclear programs, revealing an intercellular, exosome‐based pathway that might help establish a tumor‐suppressive microenvironment.
Roberta Cacciatore +20 more
wiley +1 more source