Results 41 to 50 of about 271,781 (289)
The frequency of terahertz radar ranges from 0.1 THz to 10 THz, which is higher than that of microwaves. Multi-modal signals, including high-resolution range profile (HRRP) and Doppler signatures, can be acquired by the terahertz radar system.
Zhi Zhou, Zongjie Cao, Yiming Pi
doaj +1 more source
Electromagnetic Imaging for Buried Conductors Using Deep Convolutional Neural Networks
In the past, many conventional algorithms, such as self-adaptive dynamic differential evolution and asynchronous particle swarm optimization, were used to reconstruct buried objects in the frequency domain; these were unfortunately time-consuming during ...
Chien-Ching Chiu +4 more
doaj +1 more source
Realizing broadband electromagnetic transparency with a graded-permittivity sphere
Broadband electromagnetic transparency phenomenon is realized with a well-designed graded-permittivity sphere, which has an extremely low scattering cross section over a wide frequency range, based on the generalized Mie scattering theory and numerical ...
Gao, Jie, Sun, Lei, Yang, Xiaodong
core +1 more source
On the effect of superfluid flows on the interaction of microwaves with He II [PDF]
The paper proposes a possible mechanism of interaction of microwaves with superfluid helium that results in an experimentally observed narrow peak of microwave absorption on the frequencies by the order of the roton frequency.
Khodusov, V. D., Naumovets, A. S.
core +4 more sources
Dielectric Metamaterials with Toroidal Dipolar Response
Toroidal multipoles are the terms missing in the standard multipole expansion; they are usually overlooked due to their relatively weak coupling to the electromagnetic fields.
Basharin, Alexey A. +6 more
core +2 more sources
Dipole-dipole dispersion interactions between neutrons
We investigate the long-range interactions between two neutrons utilizing recent data on the neutron static and dynamic electric and magnetic dipole polarizabilities.
Babb, James F. +2 more
core +2 more sources
The re-emission spectrum of digital hardware subjected to EMI [PDF]
The emission spectrum of digital hardware under the influence of external electromagnetic interference is shown to contain information about the interaction of the incident energy with the digital circuits in the system.
Fischer, K +4 more
core +1 more source
Nonlinear terahertz devices utilizing semiconducting plasmonic metamaterials
The development of responsive metamaterials has enabled the realization of compact tunable photonic devices capable of manipulating the amplitude, polarization, wave vector, and frequency of light. Integration of semiconductors into the active regions of
Averitt, Richard D. +8 more
core +1 more source
Higher order forward spin polarizability [PDF]
As a guideline for future experiments to extract the four (leading) spin polarizabilities of the nucleon, we have constructed the forward amplitude for polarized Compton scattering by dispersion integrals.
Ahrens +40 more
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The Dubna-Mainz-Taipei Dynamical Model for πNScattering and π Electromagnetic Production [PDF]
Some of the featured results of the Dubna-Mainz-Taipei (DMT) dynamical model for $ N$ scattering and $ ^0$ electromagnetic production are summarized. These include results for threshold $ ^0$ production, deformation of $ (1232)$, and the extracted properties of higher resonances below 2 GeV.
openaire +2 more sources

