Results 71 to 80 of about 8,136,705 (229)

X-Band Radar Detection of Small Garbage Islands in Different Sea State Conditions

Remote Sensing
This paper presents an assessment of X-band radar’s detection capability to monitor Small Garbage Islands (SGIs), i.e., floating aggregations of marine litter consisting chiefly of plastic, under changing sea states.
Francesco Serafino, Andrea Bianco
doaj   +1 more source

Combined Effects of Thermal Cycling Aging and Reinforcement Content on the Ball‐On‐Disk Wear of Additively Manufactured Polylactic Acid Composites

Polymer Composites, EarlyView.
Thermal Aging and Tribological Tests of Additive Manufactured PLA Composites. ABSTRACT This study focuses on the additive manufacturing of pure polylactic acid (PLA) specimens and milled glass fiber (GF)‐filled PLA composites under thermal cycling aging and wear tests. Wear tracks have been analyzed via 3D optical profiling and SEM imaging.
Sinan Fidan, Satılmış Ürgün, Nevin Gamze Karsli, Taner Yilmaz, Mustafa Özgür Bora, Mehmet İskender Özsoy   +5 more
wiley   +1 more source

A Method for Retrieving Wave Parameters From Synthetic X-Band Marine Radar Images

IEEE Access, 2020
The research on retrieving wave parameters from X-band marine radar images based on the spectral analysis method is investigated in this paper. Since the sea wave field is not always homogeneous and stationary in the spatial and temporal domain ...
Yanbo Wei, Yan Zheng, Zhizhong Lu
doaj   +1 more source

Tracking Wintertime Behaviour of Emperor Penguins Using High‐Resolution Synthetic Aperture Radar Imagery

Remote Sensing in Ecology and Conservation, EarlyView.
Using 25–30 cm Umbra synthetic aperture radar (SAR) imagery combined with ground validation of our observations, we introduce a method to track the phenology of emperor penguins during the Antarctic winter. We successfully identified events in the breeding cycle, which were previously impossible to observe during the complete darkness of Antarctic ...
Michelle LaRue, Daniel Price, Sarah Wiki‐Bennett, Charles K. Lee, B. Jack Pan, Kyle McCloud, Heather Cruickshank, Alex Ponniah, Daniel Zitterbart, Alexander Winterl, Céline Le Bohec, Rose Foster‐Dyer, Peter Fretwell   +12 more
wiley   +1 more source

Definition of ICESat Selection Criteria for their Use as Height References for TanDEM-X [PDF]

, 2010
The TanDEM X satellite synthetic aperture radar (SAR) mission has the goal to deliver a high-precision global digital elevation model (DEM). The X band SAR interferometry (InSAR)-derived DEMs contain absolute and relative height errors that have to be ...
Scheiber, Rolf, Bachmann, Markus, Krieger, Gerhard, Hueso Gonzalez, Jaime, Jaime Hueso Gonzalez, Rolf Scheiber, Markus Bachmann, Gerhard Krieger   +7 more
core   +1 more source

The Application of Autonomous Fixed‐Wing Drones in the Sub‐Antarctic Operating Beyond Visual Line of Sight to Enable Large Area, Multi‐Species Population Monitoring in a Changing Environment

Remote Sensing in Ecology and Conservation, EarlyView.
Autonomous fixed‐wing drones operating beyond visual line of sight of the pilot were used to conduct the first aerial, multi‐species baseline reference survey at the sub‐Antarctic island of South Georgia. Long‐term population monitoring in this remote, challenging environment has historically proved difficult, with terrestrial monitoring generally ...
N. Fenney, J. Coleman, A. Fox, P. N. Trathan, M. A. Collins, P. R. Hollyman   +5 more
wiley   +1 more source

TANDEM-X: A RADAR INTERFEROMETER WITH TWO FORMATION FLYING SATELLITES [PDF]

, 2012
TanDEM-X (TerraSAR-X add-on for Digital Elevation Measurements) is an innovative formation flying radar mission that opens a new era in spaceborne radar remote sensing.
Zink, Manfred, Moreira, Alberto, Krieger, Gerhard   +2 more
core  

Electrified Carbon‐Neutral Methanol Production Pathways: A Multiscale Techno‐Economic‐Environmental Assessment Based on the UK Energy System

Advanced Chemical Engineering, Volume 1, Issue 2, December 2026.
A two‐scale framework bridges process‐level physics and system‐level decision‐making for electrified green methanol production. Replacing computationally demanding reactor simulations with an interpretable symbolic‐regression surrogate enables rapid techno‐economic and life‐cycle assessment. The framework reveals how process performance propagates into
Yuanjing Zhao, Shiyu Wang, Grazia Leonzio, Jin Xuan, Huajie Yin, Lei Xing   +5 more
wiley   +1 more source

Radar Instrument Calibration of TerraSAR-X [PDF]

, 2008
TerraSAR-X is a high resolution synthetic aperture radar (SAR) satellite launched in 2007. Its active phased array X-Band antenna hosts 384 transmit/receive modules (TRMs) controlling the beam steering in azimuth and eleva-tion.
Benjamin Bräutigam, Hueso González, Jaime, Markus Bachmann, Jaime Hueso González, Schwerdt, Marco, Bachmann, Markus, Bräutigam, Benjamin, Marco Schwerdt   +7 more
core  

Developments in target micro-doppler signatures analysis: radar imaging, ultrasound and through-the-wall radar [PDF]

, 2013
Target motions, other than the main bulk translation of the target, induce Doppler modulations around the main Doppler shift that form what is commonly called a target micro-Doppler signature.
Soraghan, J. J., Woodbridge, K., Clemente, C., Soraghan, J.J., Balleri, Alessio, Balleri, A.   +5 more
core   +1 more source