Results 1 to 10 of about 3,253,485 (320)
Effectiveness of additional lead shielding to protect staff from scattering radiation during endoscopic retrograde cholangiopancreatography procedures. [PDF]
J Radiat Res, 2018 Endoscopic retrograde cholangiopancreatography (ERCP) is often complex and involves long fluoroscopic times, with significant radiation exposure to medical staff. We investigated protective effects of an additional attached lead shielding device.
Morishima Y, Chida K, Meguro T.
europepmc +2 more sources
IEEE Transactions on Antennas and Propagation, 2021 A novel method based on the combination of scattering-matrix approach and microwave network theory is proposed for the realization of in-band scattering and radiation tradeoff of broadband phased arrays.
Zhechen Zhang +5 more
semanticscholar +1 more source
Nanomaterials, 2023 A terahertz flexible metamaterial quarter-wave plate (QWP) is designed and fabricated using polyimide as the substrate in this paper, with a 3 dB axial ratio bandwidth of 0.51 THz and high polarization conversion efficiency and transmittance.
Jinhai Sun +6 more
doaj +1 more source
Results 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
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Scattering Amplitudes and Conservative Binary Dynamics at O(G^{4}). [PDF]
Physical Review Letters, 2021 Using scattering amplitudes, we obtain the potential contributions to conservative binary dynamics in general relativity at fourth post-Minkowskian order O(G^{4}).
Z. Bern +6 more
semanticscholar +1 more source
Radiated Angular Momentum and Dissipative Effects in Classical Scattering. [PDF]
Physical Review Letters, 2022 We present a new formula for the angular momentum J^{μν} carried away by gravitational radiation in classical scattering. This formula, combined with the known expression for the radiated linear momentum P^{μ}, completes the set of radiated Poincaré ...
A. Manohar +2 more
semanticscholar +1 more source
Infrared features of gravitational scattering and radiation in the eikonal approach [PDF]
Physical Review D, 2018 Following a semiclassical eikonal approach—justified at transplanckian energies order by order in the deflection angle Θs∼4Gsb≡2Rb—we investigate the infrared features of gravitational scattering and radiation in four space-time dimensions, and we ...
M. Ciafaloni, D. Colferai, G. Veneziano
semanticscholar +1 more source
SpectralMAE: Spectral Masked Autoencoder for Hyperspectral Remote Sensing Image Reconstruction
Sensors, 2023 Accurate hyperspectral remote sensing information is essential for feature identification and detection. Nevertheless, the hyperspectral imaging mechanism poses challenges in balancing the trade-off between spatial and spectral resolution.
Lingxuan Zhu +4 more
doaj +1 more source
The amplitude for classical gravitational scattering at third Post-Minkowskian order [PDF]
Journal of High Energy Physics, 2021 We compute the scattering amplitude for classical black-hole scattering to third order in the Post-Minkowskian expansion, keeping all terms needed to derive the scattering angle to that order from the eikonal formalism.
N. Bjerrum-Bohr +3 more
semanticscholar +1 more source
Radiative contributions to gravitational scattering [PDF]
Physical Review D, 2021 The effects of radiation-reaction on the classical scattering of two point masses, in General Relativity, are derived by a variation-of-constants method.
D. Bini, T. Damour, A. Geralico
semanticscholar +1 more source