Results 41 to 50 of about 3,194,056 (379)

Heat-kernel approach for scattering [PDF]

open access: yes, 2015
An approach for solving scattering problems, based on two quantum field theory methods, the heat kernel method and the scattering spectral method, is constructed.
Dai, Wu-Sheng, Li, Wen-Du
core   +2 more sources

Towards spatially resolved magnetic small-angle scattering studies by polarized and polarization-analyzed neutron dark-field contrast imaging

open access: yesScientific Reports, 2021
In the past decade neutron dark-field contrast imaging has developed from a qualitative tool depicting microstructural inhomogeneities in bulk samples on a macroscopic scale of tens to hundreds of micrometers to a quantitative spatial resolved small ...
Jacopo Valsecchi   +5 more
doaj   +1 more source

An ultra-thin high-efficiency plasmonic metalens with symmetric split ring transmitarray metasurfaces

open access: yesResults in Physics, 2023
Metasurface lenses (or metalenses) have aroused great attentions and efforts in the community of metamaterials or metasurfaces due to its ultrathin device dimension and superior focusing performances. High-efficiency transmissive metalenses with an ultra-
Yong-Qiang Liu   +10 more
doaj   +1 more source

Sample changers for direct geometry neutron chopper spectrometers

open access: yesScientific Reports
The advent of higher flux neutron sources has made the use of sample changers appropriate across the instrument suites at neutron scattering facilities.
Matthew B. Stone   +15 more
doaj   +1 more source

Ultrathin MWCNT/Ti3C2Tx Hybrid Films for Electromagnetic Interference Shielding

open access: yesNanomaterials
The disordered assembly and low conductivity of carbon nanotubes are the main problems that limit the application of electromagnetic interference (EMI) shielding. In this work, an ordered lamellar assembly structure of multiwalled carbon nanotube/Ti3C2Tx
Chuanxin Weng   +8 more
doaj   +1 more source

Analytical Formulas for Wave Propagation at Low Frequencies in Half-Spaces Due to a Horizontal Magnetic Dipole

open access: yesIEEE Access, 2020
The Sommerfeld Integrals (SIs) are re-visited in the presence of half-spaces under the assumption of γ0 ≈ iλ being valid for low-frequency propagation in order to investigate the near-field due to a Horizontal Magnetic Dipole (HMD ...
Honglei Xu   +5 more
doaj   +1 more source

Polariton-polariton scattering in microcavities: A microscopic theory

open access: yes, 2009
We apply the fermion commutation technique for composite bosons to polariton-polariton scattering in semiconductor planar microcavities. Derivations are presented in a simple and physically transparent fashion.
D'Andrea, A.   +5 more
core   +2 more sources

Structural dynamics of the plant hormone receptor ETR1 in a native‐like membrane environment

open access: yesFEBS Letters, EarlyView.
The present study unveils the structural and signaling dynamics of ETR1, a key plant ethylene receptor. Using an optimized nanodisc system and solution NMR, we captured full‐length ETR1 in a native‐like membrane environment. Our findings reveal dynamic domain uncoupling and Cu(I)‐induced rigidification, providing the first evidence of metal‐triggered ...
Moritz Lemke   +2 more
wiley   +1 more source

Planar microwave retroreflector based on transmissive gradient index metasurface

open access: yesNew Journal of Physics, 2020
In this paper, a novel planar microwave retroreflector based on a transmissive gradient metasurface combined with a curved metal mirror is proposed and demonstrated.
Yong-Qiang Liu   +4 more
doaj   +1 more source

Scattered compactifications and the orderability of scattered spaces. II [PDF]

open access: yesProceedings of the American Mathematical Society, 1981
A space is suborderable if it is embeddable in a (totally) orderable space. It is shown that a suborderable scattered space is orderable and admits an orderable scattered compactification.
openaire   +4 more sources

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