Results 71 to 80 of about 1,868 (173)

Characterization of Mass Wasting Events on Lunar Maria Using Mini‐RF Radar Observations

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Evidence of mass wasting has been observed on the Moon since at least the Apollo era. Surface features indicative of mass wasting processes are traditionally characterized geomorphologically using visible images. In this study, we aim to better understand mass wasting features via their radar properties, which can provide insights into the ...
S. L. Pérez‐Cortés   +7 more
wiley   +1 more source

Mueller Matrix Polarimetric Imaging Analysis of Optical Components for the Generation of Cylindrical Vector Beams

open access: yesCrystals, 2020
In this work, we performed a Mueller matrix imaging analysis of two commercial optical components usually employed to generate and manipulate vector beams—a radial polarizer and a liquid-crystal q-plate.
Guadalupe López-Morales   +4 more
doaj   +1 more source

Hill‐Terrain Modulation of Inland Snow‐Cloud Microphysics: Polarimetric Radar and Balloon‐Borne Particle Imaging Radiosonde Observations

open access: yesGeophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Snow‐cloud microphysics over inland hills partly resembles that over high mountains, yet exhibits notable differences. During 2024–2025 winter, coordinated observations in Tokamachi City, Niigata Prefecture, Japan, were conducted using four launches of a newly developed balloon‐borne particle‐imaging radiosonde (Rainscope) together with dual X‐
K. Takami   +3 more
wiley   +1 more source

Could Narrow Bipolar Events Serve as a Distinct Lightning Proxy for Revealing Overshooting Thunderclouds Development?

open access: yesGeophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Narrow bipolar events (NBEs) are often generated in overshooting thunderclouds (OT) penetrating the stratosphere. However, how and under what conditions OT produces such discharges remains unclear. With 3‐year lightning observations and simultaneous cloud top brightness temperature measurements over South China, we developed a more accurate OT
Baojun Wu   +7 more
wiley   +1 more source

Generating bright-field images of stained tissue slices from Mueller matrix polarimetric images with CycleGAN using unpaired dataset

open access: yesJournal of Innovative Optical Health Sciences
Recently, Mueller matrix (MM) polarimetric imaging-assisted pathology detection methods are showing great potential in clinical diagnosis. However, since our human eyes cannot observe polarized light directly, it raises a notable challenge for ...
Jiahao Fan   +5 more
doaj   +1 more source

Complex Spatial Illumination Scheme Optimization of Backscattering Mueller Matrix Polarimetry for Tissue Imaging and Biosensing

open access: yesBiosensors
Polarization imaging and sensing techniques have shown great potential for biomedical and clinical applications. As a novel optical biosensing technology, Mueller matrix polarimetry can provide abundant microstructural information of tissue samples ...
Wei Jiao   +6 more
doaj   +1 more source

Hybrid Dual-Polarization Synthetic Aperture Radar

open access: yesRemote Sensing, 2019
Compact polarimetry for a synthetic aperture radar (SAR) system is reviewed. Compact polarimetry (CP) is intended to provide useful polarimetric image classifications while avoiding the disadvantages of space-based quadrature-polarimetric (quad-pol) SARs.
R. Keith Raney
doaj   +1 more source

A Polarimetric Wavefront Imager

open access: yes
10 pages, 4 ...
Blochet, Baptiste   +3 more
openaire   +2 more sources

Polarimetric SAR Image Terrain Classification

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2019
In practical applications of automated terrain classification from high-resolution polarimetric synthetic aperture radar (PolSAR) imagery, different terrain types may inherently contain a high level of internal variability, as when a broadly defined class (e.g., “trees”) contains elements arising from multiple subclasses (pine, oak, and willow).
R. Derek West   +5 more
openaire   +1 more source

Reflection mode polarimetry guides laser mass spectrometry to diagnostically important regions of human breast cancer tissue

open access: yesScientific Reports
To enhance the clinical utility of mass spectrometry (MS), lengthy dwell times on less informative regions of patient specimens (e.g., adipose tissue in breast) must be minimized. Additionally, a promising variant of MS known as picosecond infrared laser
Michael D. Singh   +5 more
doaj   +1 more source

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