Results 131 to 140 of about 6,059 (275)

FlyEyes: A CCD-based Wavefront Sensor for PUEO, the CFHT Curvature AO System [PDF]

open access: bronze, 2011
Olivier Lai   +14 more
openalex   +1 more source

Global and microlocal aspects of Dirac operators: Propagators and Hadamard states

open access: yesMathematische Nachrichten, EarlyView.
Abstract We propose a geometric approach to construct the Cauchy evolution operator for the Lorentzian Dirac operator on Cauchy‐compact globally hyperbolic 4‐manifolds. We realize the Cauchy evolution operator as the sum of two invariantly defined oscillatory integrals—the positive and negative Dirac propagators—global in space and in time, with ...
Matteo Capoferri, Simone Murro
wiley   +1 more source

Objective quantification and spatial mapping of cataract with a Shack-Hartmann wavefront sensor. [PDF]

open access: yesSci Rep, 2020
Holló CT   +7 more
europepmc   +1 more source

Visualization of Hemispherical Post‐Detonation Fireball Internal Structures

open access: yesPropellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT Hemispherical charges are initiated above a transparent plate in a half‐plane configuration, allowing optical access to the internal regions of the luminous fireball. High‐speed visualization enables characterization of the internal luminous structure, showing clearly the bright shell and dark core regions.
Samuel N. Brunkow   +5 more
wiley   +1 more source

The AOLI low-order non-linear curvature wavefront sensor: a method for high sensitivity wavefront reconstruction [PDF]

open access: green, 2012
Jonathan Crass   +15 more
openalex   +1 more source

A climatology of trapped lee waves over Britain and Ireland obtained using deep learning on high‐resolution model output

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
This article presents a climatology of trapped lee waves over Britain and Ireland using machine‐learning techniques applied to high‐resolution model output driven by reanalysis data. This climatology builds on previous work and is much more comprehensive and covers a longer time period than previous studies.
Jonathan Coney   +6 more
wiley   +1 more source

Investigation on the wavefront stability of wavefront sensors

open access: yes, 2006
This dissertation mainly describes the wavefront stability of light source for the wavefront sensing systems. Several investigations on three different light sources, white light, laser diode and He-Ne laser have been carried out for two wavefront sensing systems, Hartmann and Shack-Hartmann systems.
openaire   +1 more source

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