Results 121 to 130 of about 51,557 (272)
Hierarchical Twist: Chirality Across Scales in Cellulose Cholesterics
Advanced Optical Materials, EarlyView.Hierarchical left‐ and right‐handed chiral nematic structures are observed in a solvent‐free thermotropic cellulose derivative. Free‐standing films show hierarchical twisted structures whose pitches respond differently to uniaxial strain: left‐handed pitches increase, ones decrease.
N. Monge +7 more
wiley +1 more source
Industrial‐Grade Structural Coloration with Robust and Vivid TiON‐Based Structures
Advanced Optical Materials, EarlyView.This study presents TiON‐based Fabry–Perot cavities as a robust strategy for structural coloration. By substituting the metal top layer with TiON, the structures achieve vivid, tunable colors and resist oxidation, abrasion, and humidity. Long‐term testing demonstrates stable optical absorption and minimal chromatic drift, highlighting TiON's ...
Md. Abdur Rahman +8 more
wiley +1 more source
An Anthropocentric Approach to Text Extraction from WWW Images
, 2000 There is a significant need to analyse the text in images on WWW pages, both for effective indexing and for presentation by non-visual means (e.g., audio).
Antonacopoulos, Apostolos +1 more
core
Highly efficient deep‐blue fluorescent dopant for achieving low‐power OLED display satisfying BT.2020 chromaticity [PDF]
, 2018 Yusuke Takita +8 more
openalex +1 more source
Structural Colors from Ultrathin Lignin Films
Advanced Optical Materials, EarlyView.Thickness‐dependent structural colors in ultrathin lignin films generate a full visible palette, tuned simply by solution concentration and spin speed. Abstract Structural colors offer a sustainable alternative to toxic pigments and dyes, yet their realization from lignin, the most abundant aromatic biopolymer, has remained elusive.
Bang An +6 more
wiley +1 more source
b-Chromatic number of some wheel related graphs
, 2014 S. K. Vaidya, M. S. Shukla
openalex +2 more sources
The b-chromatic number of power graphs [PDF]
, 2003 Brice Effantin, Hamamache Kheddouci
openalex +1 more source
Spectral Peaked Optical Frequency Comb for Highly Sensitive Spectroscopy
Advanced Photonics Research, EarlyView.Optical frequency combs represent a breakthrough in metrology, and comb mode selection and power scaling are important issues for highly sensitive spectroscopy. This article reviews the development of a spectrally peaked optical frequency comb using the novel phenomenon of spectral peaking for highly sensitive spectroscopy.
Norihiko Nishizawa +3 more
wiley +1 more source