Results 111 to 120 of about 14,103,706 (328)

Double-sided fresnel zone plates as high performance optics in X-ray microscopy [PDF]

open access: yes, 2015
X-ray microscopy describes a range of analytical techniques, specialized for the characterization of organic and inorganic samples using high energy photons.
Mohácsi, István
core   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav   +2 more
wiley   +1 more source

Interferometric wavefront sensing for extreme adaptive optics [PDF]

open access: yes, 2004
Adaptive optics is concerned with the correction of phase distortions in wavefronts which degrade the quality of images produced by optical systems. It was originally developed for both astronomy and the military, where the Earth's atmosphere causes ...
Oag, Thomas J. D., Oag, Thomas J D
core  

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

A novel fiber optic temperature sensor based on CCT measurement and tipped with a PDMS-YAG:Ce phosphor mixture

open access: yesiScience
Summary: This paper presents a novel fiber-optic temperature sensor based on correlated color temperature (CCT) measurement. The sensor is formed by a homogeneous mixture of polydimethylsiloxane (PDMS) and cerium-doped yttrium aluminum garnet (YAG:Ce ...
Jan Jargus   +5 more
doaj   +1 more source

Optimization of the holographic wavefront sensor for open-loop adaptive optics under realistic turbulence. Pt.I: Simulations

open access: yes, 2022
S.F88-F98The modal holographic wavefront sensor enables fast measurement of individual aberration modes without the need for time-consuming calculations.
Gladysz, Szymon   +3 more
core   +1 more source

Leucine‐rich glioma inactivated 1 (LGI1) is a ganglioside‐binding protein

open access: yesFEBS Letters, EarlyView.
Neuronal hyperexcitability associated with a decrease/absence of the extracellular protein LGI1 has been suggested to be primarily due to the downregulation of Kv1 channel expression. The molecular mechanisms underlying this decrease have not yet been elucidated.
Kévin Debreux   +7 more
wiley   +1 more source

Beam shaping elements for single photon sources based on 3D printed micro-optics [PDF]

open access: yesEPJ Web of Conferences
Multiple researchers have explored the use of 3D printed micro-optical components as interfaces to quantum point emitters by considering different designs and configurations. Typically, these designs involve parametric structures optimized in combination
Jimenez Carlos   +2 more
doaj   +1 more source

Design of arrayed magnetorheological equipment applied in optics manufacture

open access: yesOptics & Laser Technology, 2023
Wan-Li Zhang   +7 more
semanticscholar   +1 more source

Laser applications to chemical, security, and environmental analysis : introduction to the feature issue

open access: yes, 2021
This Applied Optics feature issue on laser applications to chemical, security, and environmental analysis (LACSEA) highlights papers presented at the LACSEA 2020 Seventeenth Topical Meeting sponsored by The Optical Society (OSA)
Seeger, Thomas,   +12 more
core   +1 more source

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