Results 51 to 60 of about 5,350,968 (279)
Emerging experimental and computational methods for studying redox‐regulated structural transitions
FEBS Letters, EarlyView.Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass +2 more
wiley +1 more source
A Study on the Range Equation Modeling for Multichannel Medium-Earth-Orbit SAR-GMTI Systems
Remote Sensing, 2021 This paper studies the range equation modeling of a ground moving target for multichannel medium-Earth-orbit (MEO) synthetic aperture radar (SAR) ground moving target indication (GMTI), an issue which is challenging to tackle due to the non-linear motion
Yongkang Li +3 more
doaj +1 more source
Synergistic perspectives—How single‐molecule biophysics complement biochemical understanding
FEBS Letters, EarlyView.In this review, we discuss how ensemble biochemistry and single‐molecule approaches are complementary, outline commonly used single‐molecule techniques, and illustrate their relevance through two representative case studies: chromatin organization by SMC complexes and pathway choice during DNA double‐strand break repair.
Sara De Bragança +2 more
wiley +1 more source
An Efficient SAR Ground Moving Target Refocusing Method Based on PPFFT and Coherently Integrated CPF
IEEE Access, 2019 The problem of ground moving target imaging and detection is difficult due to the large range cell migration (RCM) and time-varying Doppler frequency migration (DFM) in synthetic aperture radar (SAR) system.
Dong Li +5 more
doaj +1 more source
Moving Target Shadow Analysis and Detection for ViSAR Imagery
Remote Sensing, 2021 The video synthetic aperture radar (ViSAR) is a new application in radar techniques. ViSAR provides high- or moderate-resolution SAR images with a faster frame rate, which permits the detection of the dynamic changes in the interested area.
Zhihua He +5 more
doaj +1 more source
Knowledge based adaptive processing for ground moving target indication [PDF]
Digital Signal Processing, 2007 This paper presents a preliminary knowledge based approach to space-time adaptive processing (STAP) for ground moving target indication from an airborne platform. The KB-processor accounts for practical aspects of adaptive processing, including detection and processing of non-homogeneous data, appropriate selection of training data, and accounting for ...
Raviraj Adve +2 more
openaire +1 more source
FEBS Letters, EarlyView.Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav +2 more
wiley +1 more source
Ground-Target Recognition Method Based on Transfer Learning
SensorsA moving ground-target recognition system can monitor suspicious activities of pedestrians and vehicles in key areas. Currently, most target recognition systems are based on devices such as fiber optics, radar, and vibration sensors.
Qiuzhan Zhou +5 more
doaj +1 more source
A simultaneous trajectory generation method for quadcopter intercepting ground mobile vehicle
International Journal of Advanced Robotic Systems, 2017 This article proposes a trajectory generator for quadcopter to intercept moving ground vehicle. For this air–ground interaction problem, we formulate the trajectory generation problem as quadratic dynamic programming in a moving-horizon scheme based on ...
Jiangcheng Zhu, Jun Zhu, Chao Xu
doaj +1 more source
Ground moving target-detection and focusing imaging under strong noise background
The Journal of Engineering, 2019 This study proposes a detection algorithm for a three-channel SAR system with weak ground moving target (GMT)-detection and focusing imaging under strong noise background.
Yang Zhou +4 more
doaj +1 more source