Results 71 to 80 of about 661,021 (336)
High Speed Dim Air Target Detection Using Airborne Radar under Clutter and Jamming Effects [PDF]
, 2015 The challenging potential problems associated with using airborne radar in detection of high Speed Maneuvering Dim Target (HSMDT) are the highly noise, jamming and clutter effects.
Almslmany, A. E. +2 more
core +2 more sources
FEBS Letters, EarlyView.This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley +1 more source
Detection of moving targets in wideband SAR
IEEE Transactions on Aerospace and Electronic Systems, 2004 A likelihood ratio is proposed for moving target detection in a wideband (WB) synthetic aperture radar (SAR) system. WB is defined here as any systems having a large fractional bandwidth, i.e., an ultra wide frequency band combined with a wide antenna beam. The developed method combines time-domain fast backprojection SAR processing methods with moving
openaire +3 more sources
Tracking and Detecting moving weak Targets
Advances in Science, Technology and Engineering Systems Journal, 2018 International audience ; Detect and tracking of moving weak targets is a complicated dynamic state estimation problem whose difficulty is increased in case of high clutter conditions or low signal to noise ratio (SNR). In this case, the track-before-detect filter (TBDF) that uses unthresholded measurements considers as an effective method for detecting
Amrouche, Naima +2 more
openaire +2 more sources
Robust Detection of Moving Human Target in Foliage-Penetration Environment Based on Hough Transform [PDF]
, 2014 Attention has been focused on the robust moving human target detection in foliage-penetration environment, which presents a formidable task in a radar system because foliage is a rich scattering environment with complex multipath propagation and time ...
Huang, X., Lei, P.
core +1 more source
Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing
FEBS Letters, EarlyView.Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley +1 more source
Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
FEBS Letters, EarlyView.Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe +3 more
wiley +1 more source
Visual Detail Augmented Mapping for Small Aerial Target Detection
Remote Sensing, 2018 Moving target detection plays a primary and pivotal role in avionics visual analysis, which aims to completely and accurately detect moving objects from complex backgrounds. However, due to the relatively small sizes of targets in aerial video, many deep
Jing Li +6 more
doaj +1 more source
Detection of moving targets in SAR
Journal of Physics: Conference Series, 2018 Radar with ground moving target indication (GMTI) is intended to isolate the signals of moving targets from the whole mass of signals reflected by different objects. In this work, we investigate two approaches to form GMIT images: displaced phase center antenna algorithm (DPCA) and along-track interferometry algorithm (ATI) by using the mathematical ...
A N Leukhin, A A Voronin, V I Bezrodny
openaire +1 more source
The role of histone modifications in transcription regulation upon DNA damage
FEBS Letters, EarlyView.This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley +1 more source