Results 21 to 30 of about 241 (130)

Thermal Emission Control via Bandgap Engineering in Aperiodically Designed Nanophotonic Devices

open access: yesNanomaterials, 2015
Aperiodic photonic crystals can open up novel routes for more efficient photon management due to increased degrees of freedom in their design along with the unique properties brought about by the long-range aperiodic order as compared to their periodic ...
Enrique Maciá
doaj   +1 more source

$m$th-order Fisher-KPP equation with free boundaries and time-aperiodic advection

open access: yesMathematics in Applied Sciences and Engineering, 2021
In this paper, we investigate a $m$th-order Fisher-KPP equation with free boundaries and time-aperiodic advection. Considering the influence of advection term and initial conditions on the long time behavior of solutions, we obtain spreading-vanishing ...
Changqing Ji, Dandan Zhu, Jingli Ren
doaj   +1 more source

Schrödinger’s What is Life?—Complexity, Cognition and the City

open access: yesEntropy, 2023
This paper draws attention to four central concepts in Schrödinger’s ‘What is Life?’ that have not, as yet, received sufficient attention in the domain of complexity: delayed entropy, free energy, order out of order and aperiodic crystal.
Juval Portugali
doaj   +1 more source

Aperiodic Photonics of Elliptic Curves

open access: yesCrystals, 2019
In this paper we propose a novel approach to aperiodic order in optical science and technology that leverages the intrinsic structural complexity of certain non-polynomial (hard) problems in number theory and cryptography for the engineering of optical ...
Luca Dal Negro   +2 more
doaj   +1 more source

Magneto-Optical Faraday Effect in Quasicrystalline and Aperiodic Microresonator Structures

open access: yesMagnetochemistry, 2023
We theoretically and numerically investigate magnetophotonic microresonators formed by a magnetic layer sandwiched between two reflective multilayers with different layer arrangements.
Daria O. Ignatyeva   +2 more
doaj   +1 more source

Fractional Transport of Photons in Deterministic Aperiodic Structures

open access: yesScientific Reports, 2017
The propagation of optical pulses through primary types of deterministic aperiodic structures is numerically studied in time domain using the rigorous transfer matrix method in combination with analytical fractional transport models.
Luca Dal Negro, Sandeep Inampudi
doaj   +1 more source

EEG Fingerprints under Naturalistic Viewing Using a Portable Device

open access: yesSensors, 2020
The electroencephalogram (EEG) has been proven to be a promising technique for personal identification and verification. Recently, the aperiodic component of the power spectrum was shown to outperform other commonly used EEG features.
Matteo Fraschini   +4 more
doaj   +1 more source

Projected topological branes

open access: yesCommunications Physics, 2022
Authors introduce a new class of topological materials, namely projected topological branes that are holographic images of higher-dimensional topological crystals, and feature either emergent crystalline or aperiodic quasicrystalline order. They manifest
Archisman Panigrahi   +2 more
doaj   +1 more source

From the Fibonacci Icosagrid to E8 (Part I): The Fibonacci Icosagrid, an H3 Quasicrystal

open access: yesCrystals
This paper introduces a new kind of quasicrystal by Fibonacci-spacing a multigrid of a certain symmetry, like H2, H3, T3, etc. Multigrids of a certain symmetry can be used to generate quasicrystals, but multigrid vertices are not a quasicrystal due to ...
Fang Fang, Klee Irwin
doaj   +1 more source

Rapid adaptation of predictive models during language comprehension: Aperiodic EEG slope, individual alpha frequency and idea density modulate individual differences in real-time model updating

open access: yesFrontiers in Psychology, 2022
Predictive coding provides a compelling, unified theory of neural information processing, including for language. However, there is insufficient understanding of how predictive models adapt to changing contextual and environmental demands and the extent ...
Ina Bornkessel-Schlesewsky   +13 more
doaj   +1 more source

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