Results 51 to 60 of about 768,249 (233)

F-SAR – DLR’s New Multifrequency Polarimetric Airborne SAR [PDF]

, 2009
F-SAR identifies the successor of the well-known E-SAR system. The system is under development at the Microwaves and Radar Institute. The development was triggered by the demand for data being simultaneously acquired at different wavelengths and ...
Nottensteiner, Anton, Horn, Ralf, Reigber, Andreas, Scheiber, Rolf, Fischer, Jens   +4 more
core  

Identification of (20R)‐protopanaxadiol from Panax ginseng as a novel anti‐SARS‐CoV‐2 compound

FEBS Open Bio, EarlyView.
We established a noninfectious BAC‐based SARS‐CoV‐2 replicon that enables antiviral screening under BSL‐2 conditions. Using this platform, we screened 373 food‐derived compounds and identified (20R)‐protopanaxadiol from Panax ginseng as a novel inhibitor of SARS‐CoV‐2 RNA replication, highlighting the value of safe replicon systems for antiviral ...
Midori Takeda, Natsue Maezono, Rina Uchikoshi, Nobuyuki Kato, Masanori Ikeda   +4 more
wiley   +1 more source

Three-dimensional Resolution Analysis for Geosynchronous Circular SAR

Leida xuebao, 2012
GEOsynchronous Circular SAR (GEOCSAR), having a high orbit, operating in a slant ellipse, and imaging in spherical surface, should be newly modeled to assess the resolution performance.
Wang Bing-nan, Xiang Mao-sheng
doaj   +1 more source

Multiplexed Detection of Respiratory Viruses Using Surface Plasmon Resonance Spectroscopy With Ultrathin Carbon Nanomembranes

Advanced Healthcare Materials, EarlyView.
An ultrathin azide‐functionalized carbon nanomembrane (N3‐CNM) provides a versatile biointerface for antibody immobilization on gold SPR sensors. Integrated with a multichannel SPR platform, the functionalized surface enables label‐free, simultaneous detection of SARS‐CoV‐2, Influenza A, and RSV antigens, demonstrating the potential of CNM‐based ...
Ghazaleh Eshaghi, Hamid Reza Rasouli, David Kaiser, Tobias Fischer, Katrin Frankenfeld, Abhishek Sharma, Andrey Turchanin   +6 more
wiley   +1 more source

Circular arguments on the origin of SARS-CoV-2

, 2022
Two recent papers, by Worobey et al. (2022) and Pekar et al. (2022), argue that SARS-CoV-2 emerged from wildlife sold in the Huanan Seafood Market (HSM) with lineages A and B spilling over separately, against alternatives such as a lab accident. Yet they give circular arguments, relying on data itself non-randomly sampled under local authorities ...
openaire   +2 more sources

Digital Beamforming and MIMO SAR: Review and New Concepts [PDF]

, 2012
Spaceborne Synthetic Aperture Radar (SAR) is a unique tool for large scale Earth observation, but the current generation of SAR sensors suffers from some fundamental limitations with regard to their imaging and mapping capabilities.
Villano, Michelangelo, Patyuchenko, Anton, Laskowski, Piotr, Huber, Sigurd, Bordoni, Federica, Moreira, Alberto, Younis, Marwan, Krieger, Gerhard, Kim, Junghyo, Rommel, Tobias, Lopez-Dekker, Paco   +10 more
core  

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

EBG Based Microstrip Patch Antenna for Brain Tumor Detection via Scattering Parameters in Microwave Imaging System

International Journal of Biomedical Imaging, 2018
A microwave brain imaging system model is envisaged to detect and visualize tumor inside the human brain. A compact and efficient microstrip patch antenna is used in the imaging technique to transmit equivalent signal and receive backscattering signal ...
Reefat Inum, Md. Masud Rana, Kamrun Nahar Shushama, Md. Anwarul Quader   +3 more
doaj   +1 more source

Mixing Performance of a Cross-Channel Split-and-Recombine Micro-Mixer Combined with Mixing Cell

Micromachines, 2020
A new cross-channel split-and-recombine (CC-SAR) micro-mixer was proposed, and its performance was demonstrated numerically. A numerical study was carried out over a wide range of volume flow rates from 3.1 μL/min to 826.8 μL/min.
Makhsuda Juraeva, Dong Jin Kang
doaj   +1 more source

ULTRA-HIGH RESOLUTION IMAGING OF FACADES AND VERTICAL INFRASTRUCTURE BY CARBORNE SAR AND AIRBORNE CSAR [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
In this paper we propose a strategy to focus ultra-high resolution single channel carborne SAR and airborne circular SAR (CSAR) data to image facades and vertical infrastructure.
S. Palm, R. Sommer, A. Tessmann, U. Stilla   +3 more
doaj   +1 more source