Results 31 to 40 of about 5,855,143 (211)

Images directes I : Espaces rigides analytiques et images directes [PDF]

Journal de théorie des nombres de Bordeaux, 2012
Cet article est le premier d’une série de trois articles consacrés aux images directes d’isocristaux : ici nous considérons des isocristaux sans structure de Frobenius ; dans le deuxième [Et 6] (resp. le troisième [Et 7]), nous introduirons une structure de Frobenius dans le contexte convergent (resp. surconvergent). Pour un morphisme
openaire   +3 more sources

Control of the Optical Wavefront in Phase and Amplitude by a Single LC-SLM in a Stellar Coronagraph Aiming for Direct Exoplanet Imaging

Photonics
This article presents a novel approach to actively compensate wavefront errors in both phase and amplitude using a Liquid Crystal Spatial Light Modulator (LC-SLM) for direct exoplanet imaging.
Andrey Yudaev, Alla Venkstern, Irina Shulgina, Alexander Kiselev, Alexander Tavrov, Oleg Korablev   +5 more
doaj   +1 more source

High performance coronagraphy for direct imaging of exoplanets

EPJ Web of Conferences, 2011
Coronagraphy has recently been an extremely active field of research, with several high performance concepts proposed, and several new coronagraphs tested in laboratories and telescopes. Coronagraph concepts can be grouped in a few broad categories: Lyot-
Guyon O.
doaj   +1 more source

Jetting, In-Nozzle Meniscus Motion and Nozzle-Plate Flooding in an Industrial Drop-on-Demand Print Head [PDF]

, 2011
The state of the ink film at and near the nozzles of a drop-ondemand(DoD) print head during jetting has a direct impact on printing performance and reliability.

core   +2 more sources

Impact of enhancing GP access to diagnostic imaging: A scoping review.

PLoS ONE, 2023
BackgroundDirect access to diagnostic imaging in General Practice provides an avenue to reduce referrals to hospital-based specialities and emergency departments, and to ensure timely diagnosis.
Amy Phelan, John Broughan, Geoff McCombe, Claire Collins, Ronan Fawsitt, Mike O'Callaghan, Diarmuid Quinlan, Fintan Stanley, Walter Cullen   +8 more
doaj   +1 more source

Direct imaging of photonic nanojets

Optics Express, 2008
We report the direct experimental observation of photonic nanojets created by single latex microspheres illuminated by a plane wave at a wavelength of 520 nm. Measurements are performed with a fast scanning confocal microscope in detection mode, where the detection pinhole defines a diffraction-limited observation volume that is scanned in three ...
Patrick, Ferrand, Jérôme, Wenger, Alexis, Devilez, Martina, Pianta, Brian, Stout, Nicolas, Bonod, Evgueni, Popov, Hervé, Rigneault   +7 more
openaire   +2 more sources

Direct imaging and astrometric detection of a gas giant planet orbiting an accelerating star

, 2023
Direct imaging of gas giant exoplanets provides information on their atmospheres and the architectures of planetary systems. However, few planets have been detected in blind surveys with direct imaging.
Murphy, Simon J.
core   +1 more source

Indocyanine green fluorescence imaging via endoscopic nasal biliary drainage during laparoscopic deroofing of liver cysts

Journal of Minimal Access Surgery, 2021
Laparoscopic deroofing of liver cysts is widely accepted as the treatment of symptomatic huge liver cysts. As bile leakage is a common complication of this procedure, indocyanine green (ICG) imaging has played an active role in detecting intrahepatic ...
Akira Umemura, Hiroyuki Nitta, Takayuki Suto, Hisataka Fujiwara, Takeshi Takahara, Yasushi Hasegawa, Hirokatsu Katagiri, Shoji Kanno, Taro Ando, Akira Sasaki   +9 more
doaj   +1 more source

Nonredundant Raman imaging using optical eigenmodes [PDF]

, 2014
We thank funding from the UK Engineering and Physical Sciences Research Council namely grant EP/J01771X/1 and EU FP7 grant FAMOS.Various forms of imaging schemes have emerged over the last decade that are based on correlating variations in incident ...
Herrington, C. Simon, Herrington, C Simon, Kosmeier, Sebastian, Zolotovskaya, Svetlana A.; id_orcid, De Luca, Anna Chiara, Riches, Andrew C, Riches, Andrew, Zolotovskaya, Svetlana A., De Luca, Anna Ciara, Zolotovskaya, Svetlana, Dholakia, Kishan, Mazilu, Michael   +11 more
core   +1 more source

Keck Observations in the INfrared of Taurus and ρ Oph Exoplanets And Ultracool Dwarfs (KOINTREAU). II. Two Young Bound Companions to Ophiuchus Stars

The Astronomical Journal
We present the second set of discoveries from Keck Observations in the INfrared of Taurus and ρ Oph Exoplanets And Ultracool dwarfs (KOINTREAU), an adaptive optics survey of young stars in the Taurus and ρ Oph star-forming regions using Keck/NIRC2 in ...
Samuel A. U. Walker, Michael C. Liu, Dimitri Mawet, Mark W. Phillips, Aniket Sanghi, Bin B. Ren, Taichi Uyama   +6 more
doaj   +1 more source