Results 31 to 40 of about 161,960 (313)

Optic-Electronic Processing of Images

open access: yes2018 XIV International Scientific-Technical Conference on Actual Problems of Electronics Instrument Engineering (APEIE), 2018
Experimental proof of functionality for potential combining optical and software methods for decating and investigation of images is considered. Checks and verifications using X-ray are one of the most effective methods for verification of heat-radiating elements.
openaire   +1 more source

Coincident electron channeling and cathodoluminescence studies of threading dislocations in GaN [PDF]

open access: yes, 2014
We combine two scanning electron microscopy techniques to investigate the influence of dislocations on the light emission from nitride semiconductors.
Edwards, P. R.   +11 more
core   +1 more source

Imaging of high-energy electron beam profile with optical diffraction radiation

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2007
Optical transition radiation (OTR) has been widely used in electron beam profile imaging. Optical diffraction radiation (ODR) has recently been used to measure the electron beam’s transverse size with the angular distribution.
Dao Xiang, Wen-Hui Huang, Yu-Zheng Lin
doaj   +1 more source

Deep-tissue focal fluorescence imaging with digitally time-reversed ultrasound-encoded light. [PDF]

open access: yes, 2012
Fluorescence imaging is one of the most important research tools in biomedical sciences. However, scattering of light severely impedes imaging of thick biological samples beyond the ballistic regime.
Wang, Ying Min   +4 more
core   +1 more source

Photonics Breakthroughs 2024: Free-Electron Interaction With Nonlinear Optical States

open access: yesIEEE Photonics Journal
The field of nonlinear integrated photonics has seen significant advancements, particularly with the emergence of microresonator-based frequency combs, or “microcombs”, which facilitate various applications including frequency metrology ...
Yujia Yang   +12 more
doaj   +1 more source

CryoEM screening with a blotting instrument: quantifying parameters affecting ice thickness using semi-automated image analysis

open access: yesMethods in Microscopy
Cryo-electron microscopy (cryoEM) grid preparation is one of the bottlenecks in using cryoEM for macromolecular structure determination. Despite significant advancements in the development of blot-free instruments, their high cost limits their widespread
Valimehr Sepideh   +4 more
doaj   +1 more source

Optical versus electron diffraction imaging of Twist-angle in 2D transition metal dichalcogenide bilayers

open access: yesnpj 2D Materials and Applications, 2021
Atomically thin two-dimensional (2D) materials can be vertically stacked with van der Waals bonds, which enable interlayer coupling. In the particular case of transition metal dichalcogenide (TMD) bilayers, the relative direction between the two ...
S. Psilodimitrakopoulos   +9 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Instrumental aspects of high-field force-detected electron spin resonance [PDF]

open access: yes, 2015
Magnetic resonance force microscopy (MRFM) is a new measurement technique combining scanning probe microscopy (SPM) and MR spectroscopy, offering the potential of high resolution chemical specific imaging.
Cruickshank, Paul Alexander Sawchuk
core  

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

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