Results 101 to 110 of about 54,811 (238)
Optical measurements of degradation in aircraft boundary layers [PDF]
, 1980 Visible wavelength measurements of the degradation of optical beams when transmitted through the thin aerodynamic boundary layers around an aircraft are reviewed.
Kelsall, D.
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, 2008 We compare the properties of subwavelength imaging in the visible wavelength range for metal-dielectric multilayers operating in the canalization and the resonant tunnelling regimes.
Born M +5 more
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Journal of Applied Clinical Medical Physics, Volume 27, Issue 5, May 2026.Abstract Background Deep learning reconstruction (DLR) algorithms have begun replacing iterative reconstruction (IR) in CT. Besides the potential to reduce noise, the application of artificial intelligence can also allow for “super resolution,” allowing traditional CT systems to produce images with improved spatial resolution by training against higher‐
Stephanie M. Leon +3 more
wiley +1 more source
Tb3+‐Doped Glass‐Ceramic Scintillating Plates and Fibers for X‐Ray Imaging and Flexible Detection
Advanced Science, Volume 13, Issue 26, 8 May 2026.A Tb3+‐doped glass‐ceramic scintillator, with controlled Ba2GdF7 nanocrystal precipitation, was developed through a rational design strategy guided by phase diagrams and molecular dynamics simulations. The obtained material exhibits a high light yield of 41 800 photons/MeV (418%/BGO), a spatial resolution of 25.3 lp/mm, and exceptional thermal ...
Songxuan Liu +6 more
wiley +1 more source
Pupil Plane Multiplexing for Vectorial Fourier Ptychography
Laser &Photonics Reviews, Volume 20, Issue 9, 6 May 2026.This study proposes a cost‐effective, modality‐adaptive multichannel microscopy framework using pupil‐plane multiplexing. A custom pupil aperture at the Fourier plane encodes channel‐specific transfer functions with spectral or polarization filters, and model‐based reconstruction with channel‐dependent priors decodes them.
Hyesuk Chae +5 more
wiley +1 more source
Revistas Argentina de Medicina, 2020 El déficit de vitamina B12 (DVB) puede producir anemia y enfermedades neurológicas. Su absorción requiere la formación de complejo factor intrínseco (FI)-vitamina B12 (VB12).
Analía Yamaguchi
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Mid‐Infrared Quantum Scanning Microscopy via Visible Light Beyond Spatial Correlations
Laser &Photonics Reviews, Volume 20, Issue 9, 6 May 2026.This work introduces a raster‐scanning approach based on quantum imaging with undetected light (QIUL) that probes samples in the mid‐infrared (MIR) spectral range while performing detection in the visible domain. Unlike previous QIUL implementations, this technique operates independently of photon‐pair spatial correlations and relies solely on induced ...
Josué R. León‐Torres +6 more
wiley +1 more source
Spatial frequency response of an optical heterodyne receiver [PDF]
The principles of transfer function analysis are applied to a passive optical heterodyne receiver to obtain the modulation transfer function (MTF). MTF calculations are performed based on an optical platform which is imaging vertically varying profiles ...
Fales, C. L., Robinson, D. M.
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Journal of Synchrotron Radiation, Volume 33, Issue 3, Page 746-758, May 2026.The development of a criterion for near‐optimal selection of the Paganin‐filter parameter based on noise power analysis measured via an image's noise power spectrum is described.The Paganin filter, widely employed in propagation‐based phase‐contrast X‐ray computed tomography with synchrotron light, attenuates phase effects and suppresses high‐frequency
Eduardo X. Miqueles +3 more
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Space station interior noise analysis program [PDF]
Documentation is provided for a microcomputer program which was developed to evaluate the effect of the vibroacoustic environment on speech communication inside a space station. The program, entitled Space Station Interior Noise Analysis Program (SSINAP),
Burn, M., Stusnick, E.
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