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Direct Determination of Photonic Stopband Topological Character: A Framework Based on Dispersion Measurements

Advanced Photonics Research
Ascertainment of photonic stopband absolute topological character requires information regarding the Bloch eigenfunction spatial distribution. Consequently, the experimental investigations predominantly restrict themselves to the bulk‐boundary ...
Nitish Kumar Gupta, Sapireddy Srinivasu, Mukesh Kumar, Anjani Kumar Tiwari, Sudipta Sarkar Pal, Harshawardhan Wanare, S. Anantha Ramakrishna   +6 more
doaj   +3 more sources

Dispersal Behavior Characters of Spodoptera frugiperda Larvae

Insects, 2023
The fall armyworm (FAW), Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae), is a major pest of corn worldwide. FAW larval dispersal is an important life strategy that influences FAW population distribution in corn fields and subsequent plant damage.
Yong-Ping Li, Su-Yi Yao, Dan Feng, Robert A. Haack, Yang Yang, Jia-Lan Hou, Hui Ye   +6 more
openaire   +3 more sources

A new approximation of the dispersion relations occurring in the sound-attenuation problem of turbofan aircraft engines [PDF]

INCAS Bulletin, 2011
The dispersion relations, appearing in the analysis of the stability of a gas flow in a straight acoustically-lined duct with respect to perturbations produced by a time harmonic source, beside the wave number and complex frequency contain the solution ...
Robert SZABO, Mirela DARAU, Agneta M. BALINT, Stefan BALINT   +3 more
doaj   +1 more source

Perfect flat band with chirality and charge ordering out of strong spin-orbit interaction

Nature Communications, 2022
Spin-orbit coupling has been typically associated with dispersion and topological character of electronic bands. Here, the authors show analytically that strong spin orbit coupling can lead to ultra-flat bands with strong correlations in a 5d pyrochlore ...
Hiroki Nakai, Chisa Hotta
doaj   +1 more source

Dispersion characteristics of complex electromechanical parameters of porous piezoceramics

Journal of Advanced Dielectrics, 2022
In this paper, the results of experimental study of dispersion characteristics of complex electromechanical parameters of ferroelectrically “hard” porous piezoceramics based on PZT composition were presented.
I. A. Shvetsov, M. A. Lugovaya, M. G. Konstantinova, P. A. Abramov, E. I. Petrova, N. A. Shvetsova, A. N. Rybyanets   +6 more
doaj   +1 more source

Evolution of seed characters and of dispersal modes in Aizoaceae

Frontiers in Plant Science, 2023
The family Aizoaceae includes ~1880 species and is one of the more diverse groups within Caryophyllales, particularly in arid areas in the western part of southern Africa. Most species are dwarf succulent-leaf shrubs. In response to the harsh climatic conditions prevalent where they occur, many representatives have evolved special reproductive ...
Alexander P. Sukhorukov, Alexander P. Sukhorukov, Maya V. Nilova, Maria Kushunina, Maria Kushunina, Yuri Mazei, Cornelia Klak   +6 more
openaire   +3 more sources

Homo-composition and hetero-structure nanocomposite Pnma Bi2SeS2 - Pnnm Bi2SeS2 with high thermoelectric performance

Nature Communications, 2021
Most of the thermoelectric nanocomposites have structure character of a hetero-composition and hetero-structure, or hetero-composition and homo-structure between matrix phase and dispersion phase.
Bushra Jabar, Fu Li, Zhuanghao Zheng, Adil Mansoor, Yongbin Zhu, Chongbin Liang, Dongwei Ao, Yuexing Chen, Guangxing Liang, Ping Fan, Weishu Liu   +10 more
doaj   +1 more source

MBD + C: How to Incorporate Metallic Character into Atom-Based Dispersion Energy Schemes

Journal of Chemical Theory and Computation, 2023
The dispersion component of the van der Waals (vdW) interaction in low-dimensional metals is known to exhibit anomalous "Type-C non-additivity" [Int. J. Quantum Chem. 114, 1157 (2014)]. This causes dispersion energy behavior, at asymptotically large separations, that is missed by popular atom-based schemes for dispersion energy calculations.
John F. Dobson, Alberto Ambrosetti
openaire   +4 more sources

Modeling a Wave on Mild Sloping Bottom Topography and Its Dispersion Relation Approximation

Kubik, 2022
Linear wave theory is a simple theory that researchers and engineers often use to study a wave in deep, intermediate, and shallow water regions. Many researchers mostly used it over the horizontal flat seabed, but in actual conditions, sloping seabed ...
Faizal Ade Rahmahuddin Abdullah, Elvi Syukrina Erianto   +1 more
doaj   +1 more source

Gate-tunable near-field localization switching in black phosphorus via hybrid plasmonic excitation [PDF]

APL Electronic Devices
Integrated photonics increasingly demands ultracompact, low-power, and highly tunable platforms for actively reconfigurable field control. Although black phosphorus (BP) provides strong electrostatic tunability and anisotropic plasmonic dispersion ...
S. Ramezanpour, A. S. Helmy
doaj   +1 more source