Results 171 to 180 of about 119,953 (318)

Mechanochromic Organic Materials: Molecular Mechanisms and Multidimensional Applications

open access: yesAdvanced Physics Research, EarlyView.
Mechanochromic (MC) organic materials change color in response to mechanical force. This review elucidates the molecular mechanisms (e.g., aggregation‐induced emission, AIE) and explores their multidimensional applications in sensors, anti‐counterfeiting, biomedical devices, and structural health monitoring, providing a roadmap for future smart ...
Xiaozhe Yin   +5 more
wiley   +1 more source

Circular chromatic number: A survey

open access: yesDiscrete Mathematics
The circular chromatic number (also called star chromatic number) is a refinement of the chromatic number of a graph. If \(k\) and \(d\) are positive integers with \(k \geq 2d\) then a (\(k,d\))-coloring of a graph \(G\) is an assignment \(f\) of colors \(0,1, \dots ,k-1\) to the vertices of \(G\) such that \(d \leq |f(x)-f(y)|\leq k-d\) whenever two ...
openaire   +2 more sources

An Alternative Approach to Spontaneous Photon Triplets Generation

open access: yesAdvanced Physics Research, EarlyView.
Day by day, communication and computing technologies are progressing at a lightning speed, which is particularly true of the quantum version of these technologies (QIST). Increasingly, these technologies are emerging from unusual and sometimes bewildering quantum optical effects, which are based on exotic quantum physical theories.
Serge Gauvin
wiley   +1 more source

Forelimb stripe coloration signals age, but not physiological health, in painted turtles. [PDF]

open access: yesBehav Ecol Sociobiol
Judson JM   +4 more
europepmc   +1 more source

Upper Chromatic Numbers: An Update

open access: yes
This is a survey written in 2000 about upper chromatic ...
openaire   +3 more sources

Functional Interface Engineering Enables Selective Multicolor Upconversion in NaErF4@NaYF4 Core–Shell Nanocrystals

open access: yesAdvanced Physics Research, EarlyView.
A functional interface engineering strategy is proposed to tune upconversion of NaErF4@NaYF4 core–shell nanocrystals by adjusting the amount of CF3COONa in the precursor during the shell growth. It is able to introduce controllable lattice defects at the core–shell interface to manipulate energy migration paths and non‐radiative transition of Er3 ...
Juan Ouyang   +8 more
wiley   +1 more source

Confirmation of a Non‐Transiting Planet in the Habitable Zone of the Nearby M Dwarf L 98‐59

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT Only 40 exoplanetary systems with five or more planets are currently known. These systems are crucial for our understanding of planet formation and planet‐planet interaction. The M dwarf L 98‐59 has previously been found to show evidence of five planets, three of which are transiting.
Paul I. Schwarz   +2 more
wiley   +1 more source

Characterization of a LED-Based Non-Mydriatic Hyperspectral Retinal Camera. [PDF]

open access: yesTransl Vis Sci Technol
Labrecque F   +5 more
europepmc   +1 more source

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