Results 101 to 110 of about 768,249 (233)
Three-dimensional Reconstruction Method Study Based on Interferometric Circular SAR
Leida xuebao, 2016 Circular Synthetic Aperture Radar (CSAR) can acquire targets’ scattering information in all directions by a 360° observation, but a single-track CSAR cannot efficiently obtain height scattering information for a strong directive scatter.
Hou Liying, Lin Yun, Hong Wen
doaj +1 more source
Advanced Science, EarlyView.Sun et al. report a self‐assembling trimeric subunit vaccine platform termed RHS, which integrates the JN.1 receptor‐binding domain (RBD) with the heptad repeat 1 (HR1), stem helix (SH), and heptad repeat 2 (HR2) regions. The SARS‐CoV‐2 RHS vaccine elicits variant‐reactive RBD‐specific antibodies and cross‐reactive SH‐specific antibodies against ...
Xikui Sun +18 more
wiley +1 more source
An Advanced Rotation Invariant Descriptor for SAR Image Registration
Remote Sensing, 2017 The Scale-Invariant Feature Transform (SIFT) algorithm and its many variants have been widely used in Synthetic Aperture Radar (SAR) image registration.
Yuming Xiang +3 more
doaj +1 more source
Dual pKa Lipid Nanoparticles for Lung‐tropic mRNA Delivery and pH‐Programmed Endosomal Escape
Advanced Science, EarlyView.Lipid nanoparticles’ bottleneck lies in low endosomal escape efficiency and liver‐dominant delivery after intravenous administration. To overcome these limitations, we present a stepwise pH‐programmed lipid nanoparticle system enabled by our newly synthesized ionizable lipid.
Seong Gi Lim +12 more
wiley +1 more source
Airborne SAR: The Multipath Effect and Circular SAR
, 2008 The work is divided in two parts. In the first part, an algorithm to remove the multipath effect in SAR images is presented. Currently, the radome containing the F-SAR antenna is located at the bottom of the plane, which in combination with strong side ...
Prats, Pau +2 more
core
Spatio-Temporal Matching of Moving Objects in Optical and SAR-Data [PDF]
, 2007 We present an approach for spatio-temporal co-registration of dynamic objects in Synthetic Aperture Radar (SAR) and optical imagery. Goal of this work is the performance evaluation of vehicle detection and velocity estimation from SAR images when ...
Weihing, Diana +3 more
core
Advanced Science, EarlyView.Freestanding hierarchical‐porous BCZT thin films integrate a compliant porous surface with a dense piezoceramic backbone to balance mechanical reliability, voltage sensitivity, and acoustic coupling. The films enable stable wearable pulse‐wave monitoring and enhanced tissue‐coupled ultrasonic energy harvesting, offering a promising route toward soft ...
Zifan Li +14 more
wiley +1 more source
Applied Sciences, 2017 Circularly polarized synthetic aperture radar (CP-SAR) is known to be insensitive to polarization mismatch losses caused by the Faraday rotation effect and antenna misalignment.
Yuta Izumi +4 more
doaj +1 more source
Adaptive imaging of anisotropic target based on circular‐SAR
Electronics Letters, 2016 The isotropic reflectivity assumption is a valid approximation in traditional narrow‐angle synthetic aperture radar (SAR). However, for large angular ranges most targets exhibit only limited scattering persistence. Therefore, this assumption is violated in circular‐SAR (CSAR).
Yue Zhao, Yun Lin, Wen Hong, Lingjuan Yu
openaire +1 more source
Twin‐Lever Multifunctional Meta‐Optics With High Longitudinal Tolerance
Advanced Science, EarlyView.We introduce a single‐layer, CMOS‐compatible metasurface that allows for polarization‐programmable, achromatic broadband dual‐mode imaging with high longitudinal tolerance. The twin‐lever design combines bright‐field focusing and vortex‐based edge‐enhanced imaging while managing axial intensity distribution from 488 to 633 nm.
Isma Javed +10 more
wiley +1 more source