Results 91 to 100 of about 768,249 (233)

Advanced Digital Beamforming Concepts for Future SAR Systems [PDF]

, 2010
This paper reviews advanced multi-channel SAR system concepts for the imaging of wide swaths with high resolution. Several novel system architectures employing both direct radiating arrays and reflector antennas fed by a digital array are introduced ...
A. Patyuchenko, Bordoni, Federica, A. Moreira, Krieger, Gerhard, Patyuchenko, Anton, F. Bordoni, Huber, Sigurd, S. Huber, Moreira, Alberto, Younis, Marwan, G. Krieger, Gebert, Nicolas, M. Younis, N. Gebert   +13 more
core   +1 more source

USP30‐Mediated Deubiquitination of PEX5 Suppresses Pexophagy to Drive Tubular Injury in Diabetic Kidney Disease

Advanced Science, EarlyView.
USP30 accumulation in diabetic renal tubular epithelial cells deubiquitinates PEX5, suppresses pexophagy, and drives dysfunctional peroxisome accumulation and tubular injury. USP30 depletion restores PEX5 ubiquitination and pexophagy, improves peroxisomal function, and alleviates tubular damage, highlighting USP30 as a therapeutic target in diabetic ...
Jia Li, Chaoyang Hua, Guangpu Li, Furong Zhai, Jingjing Ren, Shaokang Pan, Qi Feng, Jianguo Wen, Dongwei Liu, Zhangsuo Liu, Jiayu Duan   +10 more
wiley   +1 more source

Publications et travaux du SAR : 1995

, 1996
Cette bibliographie recense l'ensemble des travaux et publications réalisés par le CIRAD-SAR au cours de l'année 1995. Les principaux thèmes sont : conception des équipements et énergie, économie des systèmes ruraux, génie agronomique et mécanisation ...
CIRAD-SAR - FRA
core  

Switching Spike Plasticity Shapes ACE2 Engagement Across SARS‐CoV‐2 Variants

Advanced Science, EarlyView.
Conformational plasticity governs SARS‐CoV‐2 spike function and ACE2 recognition. Using high‐speed AFM and single‐molecule force spectroscopy, we analyzed the ancestral spike and nine variants, revealing progressive rigidification from Delta, variable plasticity in Omicron sublineages, and JN.1 compaction.
Sarah Stainer, Rong Zhu, Manuel Reithofer, Gerhard Stadlmayr, Katharina Stadlbauer, Panchika Prangkio, Christoph Rippel, Markus Hahn, Aniko Eva Kasztner, Stefanie Stohl, Petr Bednar, Daniel Ruzek, David Glück, Robert Tampé, Gordana Wozniak‐Knopp, Yoo Jin Oh, Miriam Klausberger, Peter Hinterdorfer   +17 more
wiley   +1 more source

A Deep Reinforcement Learning Method with a Low Intercept Probability in a Netted Synthetic Aperture Radar

Remote Sensing
A deep reinforcement learning (DRL)-based power allocation method is proposed to achieve a low probability of intercept (LPI) in a netted synthetic aperture radar (SAR).
Longhao Xie, Ziyang Cheng, Ming Li, Huiyong Li   +3 more
doaj   +1 more source

Sea Surface Current Estimation Using Airborne Circular Scanning SAR with a Medium Grazing Angle

Remote Sensing, 2018
Circular scanning synthetic aperture radar (SAR) is a novel imaging mode wherein the radar antenna rotates from 0 degrees to 360 degrees along the platform flight direction, providing us with a potentially effective technique to estimate the sea surface ...
Xueli Pan, Guisheng Liao, Zhiwei Yang, Hongxing Dang   +3 more
doaj   +1 more source

Revealing the Underlying Mechanisms in Performance Enhancement of Shellular Lattice Electrodes During Anion Exchange Membrane Water Electrolysis Process

Advanced Science, EarlyView.
Micro laser powder bed fusion enables architected nickel shellular lattice gas diffusion layers for anion exchange membrane water electrolysis. Among regular open cell geometries, the Gyroid lattice promotes bubble release, convective reactant replenishment and continuous electron transport, delivering low overpotentials, enhanced charge transfer and ...
Tianxiao Niu, Rui Li, Xiao Chen, Deyong Sun, Tianyu Gao, Junhao Ding, Shuo Qu, Xu Song   +7 more
wiley   +1 more source

The Staggered SAR concept: Imaging a wide continuous swath with high resolution [PDF]

, 2013
Staggered SAR is an innovative synthetic aperture radar (SAR) concept, based on the continuous variation of the pulse repetition interval (PRI). This concept allows high-resolution imaging of a wide continuous swath without the need for a long antenna ...
Villano, Michelangelo, Moreira, Alberto, Krieger, Gerhard   +2 more
core  

Advanced Interferometric SAR Techniques with TanDEM-X [PDF]

, 2008
TanDEM-X is an innovative mission with a TerraSAR-X add-on satellite for high-resolution singlepass SAR interferometry. The TanDEM-X mission has the primary objective of generating a consistent, global DEM with an unprecedented accuracy according to the ...
Hajnsek, Irena, Fiedler, Hauke, Hauke Fiedler, Krieger, Gerhard, Irena Hajnsek, Marwan Younis, Manfred Zink, Werner, Marian, Alberto Moreira, Zink, Manfred, Moreira, Alberto, Younis, Marwan, Gerhard Krieger, Marian Werner   +13 more
core   +1 more source

Modular Metamaterials for Adaptable MRI Signal Control: Combining Dipole Array With a New Hexagon‐Based Artificial Dielectrics

Advanced Science, EarlyView.
A flexible, hexagonally packed artificial dielectric providing a wide range of effective permittivities (εr ≈ 30–1400) without lumped elements was developed for clinical and ultra‐high‐field MRI. Combined with modular passive‐dipole arrays, the system enables adaptable RF field shaping through electric‐ and magnetic‐dipole tuning.
Santosh Kumar Maurya, Ilan Goldberg, Rita Schmidt   +2 more
wiley   +1 more source