Results 81 to 90 of about 1,143 (224)

The packing coloring problem for lobsters and partner limited graphs [PDF]

, 2014
A packing k-coloring of a graph G is a k-coloring such that the distance between two vertices having color i is at least i + 1. To compute the packing chromatic number is NP-hard, even restricted to trees, and it is known to be polynomial time solvable ...
Torres, Pablo Daniel, Nasini, Graciela Leonor, Argiroffo, Gabriela Rut   +2 more
core   +1 more source

On the Packing Chromatic Number of Trees, Cartesian Products and Some Infinite Graphs

Electronic Notes in Discrete Mathematics, 2008
Abstract A subset A of vertices in a graph G is an r-packing if the distance between every pair of distinct vertices in A is more than r. The packing chromatic number, χ ρ ( G ) , is the smallest k for which there exists some partition V 1 , V 2 , … , V k of the vertex set of G such that V r is an r-packing ...
Douglas F. Rall, Bostjan Bresar, Art S. Finbow, Sandi Klavzar   +3 more
openaire   +1 more source

A Short Proof that the List Packing Number of any Graph is Well Defined [PDF]

, 2022
List packing is a notion that was introduced in 2021 (by Cambie et al.). The list packing number of a graph $G$, denoted $\chi_{\ell}^*(G)$, is the least $k$ such that for any list assignment $L$ that assigns $k$ colors to each vertex of $G$, there is a ...
Mudrock, Jeffrey A.
core   +1 more source

Packing Coloring of Some Classes of Graphs with Recursive Structure [PDF]

, 2022
V doktorski disertaciji obravnavamo pakirna barvanja grafov. Ta predstavljajo eno izmed zelo raziskovanih variacij barvanj grafov. Doktorska disertacija je sestavljena iz treh delov, v sklopu katerih predstavimo rešitve različnih problemov v zvezi s ...
Ferme, Jasmina
core   +1 more source

Degradation Mechanisms, Encapsulation‐Based Stabilization, and Analytical Detection of Vitamin A

Journal of the American Oil Chemists' Society, EarlyView.
ABSTRACT Vitamin A is an important lipid‐soluble micronutrient essential for vision, immune function, and overall growth and development. However, vitamin A is unstable and susceptible to environmental factors because of its conjugated structure and inherent chemical reactivity.
Latheesha Abeywardana, Thambaramala V. Gamage, Tanoj K. Singh, Shuaifei Zhao, Amy Logan, Lingxue Kong   +5 more
wiley   +1 more source

An Intelligent Wound Dressing Platform Based on Natural pH‐Sensors From Syzygium cumini

Journal of Applied Polymer Science, EarlyView.
This study presents a dual‐functionality wound dressing platform based on an alginate–hyaluronate matrix integrated with Syzygium cumini extract. The smart film acts as a sensitive, reversible pH‐sensor for real‐time infection monitoring and a structural plasticizer that enhances mechanical conformability.
Rachel Faverzani Magnago, Felipe da Silva Valente, Jovana Volpato Philippi, Kellen Mar‐con Medeiros, Fernanda Mendes de Moraes, Stefano Caon Tallamini, Marcelo Maraschin, Fernando Dal Pont Morisso, Karine Modolon Zepon   +8 more
wiley   +1 more source

Productivity and Emissions in Italian Agriculture: A Farm‐Level Efficiency Analysis

Business Strategy and the Environment, EarlyView.
ABSTRACT Achieving the European Union climate‐neutrality objectives requires metrics that jointly assess farm productivity and greenhouse gas emissions at a granular level. However, harmonized evidence for benchmarking the productivity–emissions nexus of Italian farms remains limited.
Giulio Fusco, Yari Vecchio, Margherita Masi, Michele Borgia   +3 more
wiley   +1 more source

Perovskite Photodetectors at the Intelligence Frontier: From Tunable Materials to Adaptive Optoelectronic Systems

Carbon Energy, EarlyView.
This comprehensive review presents a progressive roadmap for perovskite vision detectors. Centered on perovskite‐based artificial perception, the graphic illustrates a systematic evolution: starting with fundamental material engineering and device architectures, advancing toward complex functional strategies such as flexible neuromorphic imaging ...
Chenglong Li, Wei Qu, Deepak Kumar, Naini Jain, Nur Wardina Syahirah binti Mohamad Fadil, Nur Najiha binti Ahmad Rasid, Emannuel Kymakis, Maria Vasilopoulou, Chunxiong Bao, Feng Gao, Peng Gao, Sanjeev Kumar Sharma, Mohammad Khaja Nazeeruddin, Abd. Rashid bin Mohd Yusoff, Haotong Wei   +14 more
wiley   +1 more source

Thermochromic Radiative Cooling Coatings with Robust Superhydrophobicity for Energy‐Efficient Buildings

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A scalable, color‐adaptive radiative cooling coating is developed to enable dynamic spectral regulation via a reversible thermochromic transition at ~45 °C and a high solar reflectance of 91.7%. The coating achieves 4.44 °C outdoor sub‐ambient cooling while providing robust superhydrophobicity and environmental durability through its micro/nano ...
Ziqi Li, Akbar Bashir, Chak‐Yin Tang, Gary Chi‐Pong Tsui, Yan Chen, Jie Cui, Xing Ouyang, Chen Liu, Dazhu Chen   +8 more
wiley   +1 more source

Dual‐Mode Electrophoretic Displays Enabled by Quantum Dot‐Decorated PR48:2 Pigment Particles and TiO2 for All‐Weather Visibility, Excellent Bistability, and Enhanced Readability

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study presents a novel quantum dot electrophoretic display (QDEPD), which combines electro‐controlled reflection and optically‐triggered emission to achieve efficient multi‐modal switching within a single pixel. By incorporating multi‐component nanostructures, the system enhances functional integration and multi‐modal response capabilities.
Xingke Zheng, Yun Ye, Hongxing Xie, Yuanyi Liu, Ruihan Lin, Guangyou Liu, Tianyong Guan, Enguo Chen, Tailiang Guo   +8 more
wiley   +1 more source