Results 121 to 130 of about 768,249 (233)

A Survey of Density Estimation for SAR Images [PDF]

, 2012
Modeling of synthetic aperture radar (SAR) images has been an important topic of research since the inception of SAR satellites. Many theoretical and empirical models have been presented in literature to accurately model the amplitude SAR images. The
Cui, Shiyong, Singh, Jagmal, Dusan, Gleich, Datcu, Mihai   +3 more
core  

Self‐Assembling Peptide‐Adjuvant Conjugate (SaPAC) Platform for Precision Cancer Immunotherapy

Advanced Science, EarlyView.
A self‐assembling peptide–adjuvant conjugate links neoantigens to TLR7 agonism, forming cationic nanoparticles that enhance lymph‐node retention, dendritic‐cell activation, and antitumor T‐cell immunity. This chemically defined platform shows how synchronized antigen and innate stimulation can be adapted across melanoma, bladder cancer, and triple ...
Yang‐Fan Wu, Jing‐Chu Hu, Ye‐Fan Hu, Wen‐Jun Li, Li Rong, Ren‐Hao Li, Yuan Yao, Lehan Hu, Xiao‐Lei Wang, Bao‐Zhong Zhang, Yicheng Lu, Shing‐Fung Chow, Canhui Su, Thomas Yau, Clive Yik‐Sham Chung, Jian‐Dong Huang   +15 more
wiley   +1 more source

Raman Analysis of RNA Nucleotide Strands From SARS‐CoV‐2 Variants and Subvariants: A Step Forward in the Definition of “Raman Genome”

Advanced Science, EarlyView.
Main Raman signals in RNA, related to helical backbone, ribofuranose ring, and nitrogenous bases, are affected by secondary structures that cause hyperchromic effects and significantly alter the Raman intensity. ABSTRACT Raman spectra of RNA nucleotide strands extracted from 20 SARS‐CoV‐2 strains, including the original Japanese isolate, Alpha, Beta ...
Giuseppe Pezzotti, Yoshiki Yasukochi, Gianluca Angiola, Takaharu Ueno, Saki Ikegami, Rintaro Okawa, Tetsuya Adachi, Wenliang Zhu, Osam Mazda, Alfio Grillo, Koichiro Higasa, Kazu Okuma   +11 more
wiley   +1 more source

Efficient Time-Domain Focussing for General Bistatic SAR Configurations: Bistatic Fast Factorised Backprojection [PDF]

, 2010
Due to the lack of an appropriate symmetry in the acquisition geometry, generalised bistatic SAR cannot benefit from the two main properties of low-to-moderate resolution monostatic SAR: azimuth-invariance and topography-insensitivity.
Moreira, Alberto, Prats, Pau, Rodriguez-Cassola, Marc, Krieger, Gerhard   +3 more
core  

Self‐Sustaining Sensing Systems: Integration Strategies and Signal–Power Matching in Energy‐Harvesting Electronics

Advanced Science, EarlyView.
Energy‐harvesting‐integrated sensors couple ambient energy conversion with sensing, processing, and wireless communication. This review organizes recent progress through integration architectures and operating principles, revisiting co‐packaged, monolithic, and co‐functional designs together with always‐on, event‐driven, and multi‐modal sensing modes ...
Taehyun Park, Ki‐Yoon Park, Yeonho Choi, Dong‐Myeong Shin, Hong‐Joon Yoon, Hocheon Yoo   +5 more
wiley   +1 more source

Publications et travaux du SAR, janvier 1992 - juin 1994

, 1994
Cette bibliographie recense l'ensemble des travaux et publications réalisés par le CIRAD-SAR depuis sa création (1992) jusqu'en juin 1994 et reçus au service de documentation.
CIRAD-SAR - FRA
core  

Staggered-SAR: A New Concept for High-Resolution Wide-Swath Imaging [PDF]

, 2012
Synthetic aperture radar (SAR) is the ideal sensor for the systematic observation of dynamic processes on the Earth’s surface. However, current SAR systems are limited, in that a wider coverage can only be achieved at the expense of a degraded azimuth ...
Villano, Michelangelo, Moreira, Alberto, Krieger, Gerhard   +2 more
core  

TP53 Loss Elevates NF‐κB‐IFN‐β‐MHC‐Ia Signaling to Promote NK Cell Resistance in Osteosarcoma

Advanced Science, EarlyView.
TP53 loss in a transforming or osteosarcoma cell promotes cytosolic DNA accumulation, activating NF‐κB‐dependent IFN‐β production. Autocrine IFN‐β signaling increases cell‐surface HLA‐Ia expression, strengthens inhibitory KIR signaling in natural killer cells, and thereby enables the affected cell to evade NK cell‐mediated cytotoxicity.
Guihui Qin, Cheung Kwan Yeung, Ye Yi, Dejin Zheng, Miaoman Ye, Chi‐Chong Chio, Jinjie Wu, Siyi Fu, Chu‐Xia Deng, Ren‐He Xu   +9 more
wiley   +1 more source

A GAN-based fast focusing method for circular SAR images

Heliyon
Circular Synthetic Aperture Radar(CSAR) imaging is vulnerable to perturbations in the atmosphere and various other elements that can lead to position offset errors in the antenna's phase center as well as induce motion errors. Traditional phase compensation methods that operate in the time domain, such as Auto-regressive Back-projection (ARBP ...
Bingxuan Li, Yanheng Ma, Lina Chu, Wei Li, Yuanping Shi   +4 more
openaire   +3 more sources

Analysis Methods of Errors (Motion and Atmospheric) in Synthetic Aperture Radar (SAR) Images [PDF]

, 2005
A method to allow the analysis of the effects of motion and atmospheric errors in SAR images is here presented. The objective of the method is to allow the visualization of the effects of motion errors and atmospheric artefacts on the processed (focused)
K. A. Camara de Macedo, R. Scheiber, Macedo, Karlus, Chandra, Madhu, Scheiber, Rolf, Boerner, Thomas, Danklmayer, Andreas, M. Chandra, A. Danklmayer, T. Boerner   +9 more
core   +1 more source