Results 41 to 50 of about 109,158 (297)

TNO, occultation, and high angular resolution astronomy

open access: yesEPJ Web of Conferences, 2011
The trans-Neptunian region is a new frontier in the solar system research. Occultation is currently the only way to detect a trans-Neptunian object (TNO) of typical comet-size in that region.
King S.-K.
doaj   +1 more source

Microbeam high angular resolution diffraction applied to optoelectronic devices [PDF]

open access: yes, 2007
Collimating perfect crystal optics in a combination with the X-ray focusing optics has been applied to perform high angular resolution microbeam diffraction and scattering experiments on micron-size optoelectronic devices produced by modern semiconductor
Bilderback, D. H.   +4 more
core   +1 more source

An E-Band Beam Sharpening Antenna Based on Monopulse Comparator

open access: yesIEEE Access, 2021
An E-band antenna module and corresponding beam sharpening method is proposed to achieve high azimuth resolution for front-looking real aperture radar application.
Zhenhua Chen, Peng Teng, Jianru Wang
doaj   +1 more source

High-resolution maps of the characteristic energy of precipitating auroral particles [PDF]

open access: yes, 2001
For the first time we produce high-resolution maps of the characteristic energy of precipitating electrons from ground-based instrumentation in the auroral zone over northern Scandinavia. This is done by combining intensity-calibrated optical data at 557.
Kosch, M.J.   +15 more
core   +1 more source

Comparing Apples with Apples: Robust Detection Limits for Exoplanet High-contrast Imaging in the Presence of Non-Gaussian Noise

open access: yesThe Astronomical Journal, 2023
Over the past decade, hundreds of nights have been spent on the world’s largest telescopes to search for and directly detect new exoplanets using high-contrast imaging (HCI).
Markus J. Bonse   +10 more
doaj   +1 more source

Channeling Effects in High Angular Resolution Electron Spectroscopy [PDF]

open access: yesMicroscopy and Microanalysis, 2006
Extended abstract of a paper presented at Microscopy and Microanalysis 2006 in Chicago, Illinois, USA, July 30 – August 3 ...
L. J. Allen   +4 more
openaire   +1 more source

High angular resolution millimeter observations of circumstellar disks [PDF]

open access: yes, 2008
In this lecture, we review the properties of protoplanetary disks as derived from high angular resolution observations at millimeter wavelengths. We discuss how the combination of several different high angular resolution techniques allow us to probe ...
Leurini S, Testi L
core   +1 more source

A programmable optical angle clamp for rotary molecular motors [PDF]

open access: yes, 2007
Optical tweezers are widely used for experimental investigation of linear molecular motors. The rates and force dependence of steps in the mechanochemical cycle of linear motors have been probed giving detailed insight into motor mechanisms. With similar
Berry, RM   +13 more
core   +1 more source

Detection and Astrometry of the Ba–Bb Subsystem in α Piscium: First Dual-field Interferometry at the CHARA Array

open access: yesThe Astronomical Journal
We present the first on-sky demonstration of dual-field interferometry at the Center for High Angular Resolution Astronomy (CHARA) Array and the first direct resolution of the inner Ba–Bb subsystem in the bright hierarchical triple α Piscium.
Narsireddy Anugu   +16 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

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