Results 21 to 30 of about 2,015,533 (287)
Synthesis of optimal motion control of a guided aircraft on a maneuvering space object [PDF]
Космические аппараты и технологииThe deployment of U.S. weapons in space reduces the flight time of weapons to important strategic ground and space objects, which in turn significantly limits the ability to counter threats and retaliate with domestic strategic nuclear and non-nuclear ...
Kozev S. G. +4 more
doaj +1 more source
Applied Sciences, 2023 Aiming at the problem of poor spatial resolution of low-frequency noise sources in a small-aperture spherical microphone array (SMA), this paper proposes a method for localizing and identifying low-frequency noise sources based on virtual-vector open SMA
Boquan Yang +3 more
doaj +1 more source
Sensors, 2023 The integrated system with the strapdown inertial navigation system (SINS) and the global positioning system (GPS) is the most popular navigation mode. It has been used in many navigation fields.
Yukun Wang, Xiuli Ning, Xiang Xu
doaj +1 more source
Vector Current Measurement Using Doppler Scatterometry with Optimally Selected Observation Azimuths
Remote Sensing, 2021 The Doppler scatterometer is a new style of remote sensing tool that can provide current measurements over a wide swath for rapid global coverage. The existing current estimation method for Doppler scatterometry uses the maximum likelihood method to ...
Weifeng Sun +4 more
doaj +1 more source
The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation
FEBS Letters, EarlyView.Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge +6 more
wiley +1 more source
Properties of the Acoustic Vector Field near the Underwater Planar Cavity Baffle and Its Application
Journal of Marine Science and Engineering, 2022 In order to apply the acoustic vector hydrophone on a ship, the properties of the acoustic vector field near the underwater planar cavity baffle are studied based on the Euler description and Lagrange description.
Hongyue Chen, Zhongrui Zhu, Desen Yang
doaj +1 more source
DNA ligase LigE increases bacterial transformation with damaged extracellular DNA
FEBS Letters, EarlyView.The DNA ligase LigE from the naturally competent Gram‐negative bacterium Neisseria gonorrhoaea increases transformation with cut extracellular DNA. This process is ATP‐dependent and relies on the catalytic activity of LigE; it also requires that LigE contains an intact periplasmic localisation sequence, indicating that ligE functions in the periplasm ...
Jolyn Pan +4 more
wiley +1 more source
Finding novel vulnerabilities of hypomorphic BRCA1 alleles
Molecular Oncology, EarlyView.Synthetic lethality screens performed to identify novel vulnerabilities often model complete gene loss, thereby overlooking patient‐derived hypomorphic mutations. In this study, we have performed genome‐wide CRISPR screens on BRCA1 hypomorphic mutations, showing BRCA1I26A behaves like wild‐type, while BRCA1R1699Q mimics deficiency. Furthermore, we have
Anne Schreuder +10 more
wiley +1 more source
International Journal of Mining Science and Technology, 2020 Mine disasters occur predominantly due to methane or coal dust explosion or a combination of both. Among the top ten worst coal mine disasters in India, nine are due to coal dust explosion. The current paper describes a general overview of the parameters
Santosh Kumar Ray +6 more
doaj +1 more source
Evidence for alignment of the rotation and velocity vectors in pulsars [PDF]
Monthly Notices of the Royal Astronomical Society, 2005 MNRAS, In ...
Johnston, Simon +5 more
openaire +3 more sources