Results 71 to 80 of about 2,096 (202)

Wavefront Reconstruction of Elevation Circular Synthetic Aperture Radar Imagery Using a Cylindrical Green's Function

EURASIP Journal on Advances in Signal Processing, 2010
Elevation Circular Synthetic Aperture Radar (E-CSAR) is a novel radar modality used to form radar images from data sets acquired along a complete or even a segment of a cylindrical geometry above a given scan area.
Daniel Flores-Tapia, Gabriel Thomas, Stephen Pistorius   +2 more
doaj   +1 more source

Alkyltransferase Ribozyme for Site‐Specific N4‐Cytidine Alkylation

Angewandte Chemie, Volume 138, Issue 20, 11 May 2026.
CSAR is the first ribozyme that catalyzes direct alkylation of an exocyclic amino group of an RNA nucleobase. The ribozyme was isolated as a self‐labeling catalyst from an in vitro selection library and engineered into a trans‐active ribozyme that catalyzes the transfer of a benzyl group from an O6‐modifed guanine to the N4 amino group of a specific ...
Evgeniia Dorinova, Manisha B. Walunj, Claudia Höbartner   +2 more
wiley   +1 more source

Tracing showing the effect of PVN microinjection of Saline in Sham and CHF rats and IMD (30 pmol) in CHF rats on CSAR.

, 2014
CSAR was induced by epicardial application of capsaicin. The CSAR in CHF rats (B) was stronger than Sham rats (A). IMD attenuated the enhanced CSAR in CHF rats (C).
Hong Zhou (29614), Hai-Jian Sun (293175), Dan Chen (32468), Ling-Li Zhang (482443), Li-Yan Chen (548234), Xian-Bing Gan (298726), Ye-Bo Zhou (298732)   +6 more
core   +1 more source

Categorizing Characteristic Regions of High‐Latitude Scintillations Using a Combination of Isolation Forest and Neural Network Machine Learning Algorithms

Journal of Geophysical Research: Machine Learning and Computation
Global Positioning System (GPS) scintillations are radio signal fluctuations due to ionospheric structures or irregularities. In this work, we utilize scintillation data to identify the source region (auroral oval vs.
Chintan Thakrar, Nicolas Gachancipa, Kshitija Deshpande, Anna‐Marie Bals, Larry Paxton   +4 more
doaj   +1 more source

A Novel 3D Point Cloud Reconstruction Method for Single-Pass Circular SAR Based on Inverse Mapping with Target Contour Constraints

Remote Sensing
Circular synthetic aperture radar (CSAR) is an advanced imaging mechanism with three-dimensional (3D) imaging capability, enabling the acquisition of omnidirectional scattering information for observation regions.
Qiming Zhang, Jinping Sun, Fei Teng, Yun Lin, Wen Hong   +4 more
doaj   +1 more source

A nature‐positive world is more than the sum of its parts

Methods in Ecology and Evolution, Volume 17, Issue 5, Page 1405-1417, May 2026.
Abstract Adoption of the Kunming–Montreal Global Biodiversity Framework (KM‐GBF) has led to further growth in attention being directed to the challenge of bending the curve of biodiversity loss to achieve a nature‐positive world. However, concerns have been raised that, unless progress towards achieving net gain in biodiversity can be measured ...
Simon Ferrier
wiley   +1 more source

Docking results for CSAR complex ‘set1_120’.

, 2013
Top left: Experimental structure of PDB: 1IUP, coded as CSAR datapoint ‘set1_120’. Waters (Oxygen only) are shown as red spheres. Black lines represent polar contacts predicted by PyMOL. Top right and bottom row: native ligand (lines) and waters (spheres)
Gordon Lemmon (216033), Jens Meiler (112401)   +1 more
core   +1 more source

Modelling remote barrier detection to achieve free-flowing river targets

Environmental Research Letters
Fragmentation caused by artificial barriers is one of the main stressors of rivers worldwide. However, many barrier inventories only record large barriers, which underestimates barrier numbers, and hence fragmentation.
Millicent V Parks, Carlos Garcia de Leaniz, Peter E Jones, Josh Jones   +3 more
doaj   +1 more source

Position and Orientation System Error Analysis and Motion Compensation Method Based on Acceleration Information for Circular Synthetic Aperture Radar

Remote Sensing
Circular synthetic aperture radar (CSAR) possesses the capability of multi-angle observation, breaking through the geometric observation constraints of traditional strip SAR and holding the potential for three-dimensional imaging.
Zhenhua Li, Dawei Wang, Fubo Zhang, Yi Xie, Hang Zhu, Wenjie Li, Yihao Xu, Longyong Chen   +7 more
doaj   +1 more source

Analysis of Azimuthal Variations Using Multi-Aperture Polarimetric Entropy with Circular SAR Images

Remote Sensing, 2018
In conventional synthetic aperture radar (SAR), sensors with a fixed look angle are assumed, and the scattering properties are considered as invariant in the azimuth.
Feiteng Xue, Yun Lin, Wen Hong, Qiang Yin, Bingchen Zhang, Wenjie Shen, Yue Zhao   +6 more
doaj   +1 more source