Results 61 to 70 of about 1,316,697 (275)

Single-particle-sensitive imaging of freely propagating ultracold atoms [PDF]

open access: yes, 2009
We present a novel imaging system for ultracold quantum gases in expansion. After release from a confining potential, atoms fall through a sheet of resonant excitation laser light and the emitted fluorescence photons are imaged onto an amplified CCD ...
A Perrin   +14 more
core   +2 more sources

Solution of the phase problem for coherent scattering from a disordered system of identical particles

open access: yesNew Journal of Physics, 2013
While the implementation of single-particle coherent diffraction imaging for non-crystalline particles is complicated by current limitations on photon flux, hit rate and sample delivery, the concept of many-particle coherent diffraction imaging offers an
R P Kurta   +4 more
doaj   +1 more source

Computational localization microscopy with extended axial range [PDF]

open access: yes, 2018
A new single-aperture 3D particle-localization and tracking technique is presented that demonstrates an increase in depth range by more than an order of magnitude without compromising optical resolution and throughput. We exploit the extended depth range
Carles Santacana, Guillem   +3 more
core   +1 more source

The structure of tick-borne encephalitis virus determined at X-ray free-electron lasers. Simulations

open access: yesJournal of Synchrotron Radiation, 2023
The study of virus structures by X-ray free-electron lasers (XFELs) has attracted increased attention in recent decades. Such experiments are based on the collection of 2D diffraction patterns measured at the detector following the application of ...
Dameli Assalauova, Ivan A. Vartanyants
doaj   +1 more source

cisTEM: user-friendly software for single-particle image processing [PDF]

open access: yesActa Crystallographica Section A Foundations and Advances, 2017
We have developed new open-source software called cisTEM (computational imaging system for transmission electron microscopy) for the processing of data for high-resolution electron cryo-microscopy and single-particle averaging. cisTEM features a graphical user interface that is used to submit jobs, monitor their progress, and display results.
Grant, Tim   +2 more
openaire   +3 more sources

Single exposure 3D imaging of dusty plasma clusters

open access: yes, 2012
We have worked out the details of a single camera, single exposure method to perform three-dimensional imaging of a finite particle cluster. The procedure is based on the plenoptic imaging principle and utilizes a commercial Lytro light field still ...
Donkó, István   +2 more
core   +1 more source

Trivariate polynomial approximation on Lissajous curves [PDF]

open access: yes, 2015
We study Lissajous curves in the 3-cube, that generate algebraic cubature formulas on a special family of rank-1 Chebyshev lattices. These formulas are used to construct trivariate hyperinterpolation polynomials via a single 1-d Fast Chebyshev Transform (
Bos, Len   +2 more
core   +2 more sources

Complex imaging of phase domains by deep neural networks

open access: yesIUCrJ, 2021
The reconstruction of a single-particle image from the modulus of its Fourier transform, by phase-retrieval methods, has been extensively applied in X-ray structural science.
Longlong Wu   +3 more
doaj   +1 more source

Principles of cryo-EM single-particle image processing [PDF]

open access: yesMicroscopy, 2015
Single-particle reconstruction is the process by which 3D density maps are obtained from a set of low-dose cryo-EM images of individual macromolecules. This review considers the fundamental principles of this process and the steps in the overall workflow for single-particle image processing.
openaire   +2 more sources

Local Substrate Heterogeneity Influences Electrochemical Activity of TEM Grid-Supported Battery Particles

open access: yesFrontiers in Chemistry, 2021
Understanding how particle size and morphology influence ion insertion dynamics is critical for a wide range of electrochemical applications including energy storage and electrochromic smart windows.
Christina Cashen   +3 more
doaj   +1 more source

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