Results 31 to 40 of about 18,289 (228)

SEMOS: a scanning electron microscope optical simulator for instrumental performance optimization

open access: yesJournal of Analytical Science and Technology
In this study, a Scanning Electron Microscope Optical Simulator (SEMOS) was developed to provide an intuitive and quantitative understanding of electron-beam optics and to optimize lens operating parameters for improved SEM performance.
Cheolsu Han   +4 more
doaj   +1 more source

Unveiling the orbital angular momentum and acceleration of electron beams

open access: yes, 2014
New forms of electron beams have been intensively investigated recently, including vortex beams carrying orbital angular momentum, as well as Airy beams propagating along a parabolic trajectory. Their traits may be harnessed for applications in materials
Ady Arie   +8 more
core   +1 more source

Optical application and measurement of torque on microparticles of isotropic nonabsorbing material [PDF]

open access: yes, 2003
We show how it is possible to controllably rotate or align microscopic particles of isotropic nonabsorbing material in a TEM00 Gaussian beam trap, with simultaneous measurement of the applied torque using purely optical means.
A. Ashkin   +39 more
core   +2 more sources

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

open access: yesFEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj   +3 more
wiley   +1 more source

Optical wave turbulence and the condensation of light [PDF]

open access: yesJournal of the Optical Society of America B, 2009
6 pages, 7 figures, Changes made due to reviewers comments before ...
Bortolozzo, Umberto   +3 more
openaire   +2 more sources

Dapagliflozin prevents methylglyoxal‐induced retinal cell death in ARPE‐19 cells

open access: yesFEBS Open Bio, EarlyView.
Diabetic macular oedema is a diabetes complication of the eye, which may lead to permanent blindness. ARPE‐19 are human retinal cells used to study retinal diseases and potential therapeutics. Methylglyoxal is a compound increased in uncontrolled diabetes due to elevated blood glucose.
Naina Trivedi   +7 more
wiley   +1 more source

Topological Optical Waveguiding of Exciton‐Polariton Condensates

open access: yesAnnalen der Physik
Abstract1D models with topological non‐trivial band structures are a simple and effective way to study novel and exciting concepts in topological photonics. In this work, the propagation of light‐matter quasi‐particles, so‐called exciton‐polaritons, is studied in waveguide arrays. Specifically, topological states are being investigated at the interface
J. Beierlein   +11 more
openaire   +3 more sources

Whole‐Body Pattern of Muscle Degeneration and Progression in Sarcoglycanopathies

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To characterize whole‐body intramuscular fat distribution pattern in patients with sarcoglycanopathies and explore correlations with disease severity, duration and age at onset. Methods Retrospective, cross‐sectional, multicentric study enrolling patients with variants in one of the four sarcoglycan genes who underwent whole‐body ...
Laura Costa‐Comellas   +39 more
wiley   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

Experimental tests of hidden variable theories from dBB to Stochastic Electrodynamics [PDF]

open access: yes, 2006
In this paper we present some of our experimental results on testing hidden variable theories, which range from Bell inequalities measurements to a conclusive test of stochastic ...
't Hooft G   +50 more
core   +3 more sources

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