Results 81 to 90 of about 3,130,711 (363)
Adaptive optics – basic optical principles
Acta Ophthalmologica, 2016 SummaryAdaptive Optics (AO) refers to a technique to compensate for distortions caused by optical aberrations in the media between the camera and the object being imaged. It was originally developed for use in astronomical telescopes to compensate for optical distortions induced by the inhomogeneous earth atmosphere.
openaire +2 more sources
Social context prevents heat hormetic effects against mutagens during fish development
FEBS Letters, EarlyView.This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere +5 more
wiley +1 more source
RS-FeatFuseNet: An Integrated Remote Sensing Object Detection Model with Enhanced Feature Extraction
Remote SensingWith the advancement of satellite and sensor technologies, remote sensing images are playing crucial roles in both civilian and military domains. This paper addresses challenges such as complex backgrounds and scale variations in remote sensing images by
Yijuan Qiu +5 more
doaj +1 more source
IEEE Photonics Journal, 2017 Solar ground layer adaptive optics (GLAO), containing a large field of view (FOV) wavefront sensor (WFS) and one deformable mirror (DM), can be used to reduce and stabilize the seeing effectively over a wide FOV. As the brain of the GLAO system, the real-
Lin Kong +4 more
doaj +1 more source
Monte-Carlo modelling of multi-conjugate adaptive optics performance on the European Extremely Large Telescope [PDF]
, 2015 The performance of a wide-field adaptive optics system depends on input design parameters. Here we investigate the performance of a multi-conjugate adaptive optics system design for the European Extremely Large Telescope, using an end-to-end Monte-Carlo adaptive optics simulation tool, DASP.
arxiv +1 more source
Molecular Oncology, EarlyView.Adaptive ERK reactivation hinders FLT3 tyrosine kinase inhibitor (TKI) treatment in FLT3/ITD acute myeloid leukemia. Here, we report that FLT3 TKI treatment rapidly induces AXL expression and upregulation that is temporally associated with the adaptive ERK reactivation.
Tessa S. Seale +9 more
wiley +1 more source
Mode-Voltage Constrained Control for Adaptive Optics System
IEEE Photonics JournalIn the adaptive optics system of astronomical observation, the deformable mirror and the tip/tilt mirror are coupled during the correction process.
Ruitao Wang +7 more
doaj +1 more source
Optical calibration of large format adaptive mirrors [PDF]
arXiv, 2022 Adaptive (or deformable) mirrors are widely used as wavefront correctors in adaptive optics systems. The optical calibration of an adaptive mirror is a fundamental step during its life-cycle: the process is in facts required to compute a set of known commands to operate the adaptive optics system, to compensate alignment and non common-path aberrations,
arxiv
Analysis and Calibration of Natural Guide Star Adaptive Optics Data [PDF]
in Adaptive Optical Systems and Applications, Robert K. Tyson,
Robert Q. Fugate, Editors, Proc. SPIE 2534, p178-193 (1995), 1996 From natural guide star adaptive optics data taken with the Come-On Plus and with the Starfire Optical Range Generation II instruments in the JHK bands and in the I band respectively, we describe and analyse the point spread function. The ultimate exploitation of adaptive optics images requires the deconvolution and therefore the calibration of the ...
arxiv +1 more source
Scientific Reports, 2018 The performance of free-space optics communication (FSOC) is greatly degraded by atmospheric turbulence. Adaptive optics (AO) is an effective method for attenuating the influence.
Yukun Wang +9 more
semanticscholar +1 more source