Results 71 to 80 of about 1,320 (180)
Laser &Photonics Reviews, Volume 20, Issue 17, 3 September 2026.Bi3+‐doped Cs2SnCl6 nanocrystals are engineered to deliver highly temperature‐responsive self‐trapped exciton emission, achieving record thermal sensitivity at elevated temperatures. A temperature‐induced dual‐STE excited state landscape enables reversible thermochromism, while a dual‐parameter calibration combining fluorescence lifetime and CIE‐y ...
Sujun Ji +16 more
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New Zealand Journal of Zoology, Volume 53, Issue 3, September 2026.In amberwing dragonfly (Perithemis tenera), solar irradiance in the 550–700 nm range (orange arrows) is only reflected by the colored wings of males (fully orange individuals). Therefore, sunlight intensity may be an important factor driving the effectiveness of their conspicuous wing displays during territorial contests and mating behavior.
João Gabriel Lacerda de Almeida
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Exploring Gröbner bases for practical problem-solving applications [PDF]
Computational Algorithms and Numerical DimensionsGröbner bases serve as a crucial theoretical cornerstone in contemporary (polynomial) ring theory. The development of Gröbner basis theory originated from efforts to address theoretical issues related to ideals in polynomial rings and to solve systems of
Hamed Farahani
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On the complexity of generalized chromatic polynomials [PDF]
Advances in Applied Mathematics, 2018 J. Makowsky and B. Zilber (2004) showed that many variations of graph colorings, called CP-colorings in the sequel, give rise to graph polynomials. This is true in particular for harmonious colorings, convex colorings, mcc_t-colorings, and rainbow colorings, and many more. N.
Andrew J. Goodall +4 more
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Journal of Food Science, Volume 91, Issue 9, September 2026.ABSTRACT This study aimed to investigate red dragon fruit powder production by foam mat drying, combining a simplex centroid mixture design for foam formulation with intermittent convective drying and intermittent microwave drying. Albumin, pea protein, and soy protein were evaluated as alternative foaming agents to whey protein, and optimization was ...
Matheus de Souza Cruz +7 more
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Planar Super‐Oscillation Diffractive Lenses: Practical Developments and Applications
Nanophotonics, Volume 15, Issue 16, 26 August 2026.This review examines planar super‐oscillation diffractive lenses as a unified framework for super‐oscillatory lenses and supercritical lenses. It focuses on applications in super‐resolution imaging, micro/nanofabrication, and precision measurement and relates their application‐specific requirements to focal‐field control, multiobjective design ...
Yutian Cheng +6 more
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Explicit formulas for chromatic polynomials of some series-parallel graphs
Учёные записки Казанского университета: Серия Физико-математические науки, 2018 The main goal of our paper is to present explicit formulas for chromatic polynomials of some planar series-parallel graphs (sp-graphs). The necklace-graph considered in this paper is the simplest non-trivial sp-graph.
E.Yu. Lerner, S.A. Mukhamedjanova
doaj
Roots of chromatic polynomials
Discrete Mathematics, 2001 The chromatic polynomial \(P(G,\lambda)\) of a graph \(G\) with chromatic number \(\chi\) has a root with modulus at least \([m- ({\chi\over 2})]/(n- \chi)\), where \(n (m)\) is the number of vertices (edges) of \(G\). This bound is proved to be best possible for \((\chi-1)\)-trees only.
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Nanophotonics, Volume 15, Issue 15, 13 August 2026.A novel large aperture metalens design strategy achieves broadband achromatic imaging across the visible spectrum (400–680 nm) with a 100° field of view. By incorporating forward mapping optimization and a hybrid algorithm framework, this approach overcomes the limit between aperture size, field of view, and chromatic aberration correction, providing a
Zongyuan Chen +6 more
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On the Absolute Sum of Chromatic Polynomial Coefficient of Graphs
International Journal of Mathematics and Mathematical Sciences, 2011 The absolute sum of chromatic polynomial coefficient of forest, q-tree, unicyclic graphs, and quasiwheel graphs, are determined in this paper.
Shubo Chen
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