Results 61 to 70 of about 2,132 (158)

The Influence of the Pretreatment of Tool Steel on the Running‐In Phase of Diamond‐Like Carbon Coatings

steel research international, EarlyView.
The influence of tool steel pretreatment on the running‐in behavior of TiNb‐diamond‐like carbon (DLC) coatings is investigated. Ion etching promotes carbide protrusion and increases coating roughness, while post‐deposition polishing reduces surface asperities.
Matěj Buřil, Ladislav Cvrček, Jan Walter, Miha Čekada, Marie Kudrnová, František Lukáč   +5 more
wiley   +1 more source

Prediction of effective Lens position using anterior segment optical coherence tomography in Chinese subjects with angle closure

BMC Ophthalmology, 2021
Purpose To assess the accuracy of biometric parameters measured by anterior segment optical coherence tomography (AS-OCT) and partial coherence interferometry (PCI) in prediction of effective lens position (ELP) compared with previous formulas in PACG ...
Yuzhou Wu, Shunhua Zhang, Yong Zhong, Ailing Bian, Yang Zhang, Zaowen Wang   +5 more
doaj   +1 more source

Wavefront sensing at a high‐repetition‐rate X‐ray free‐electron laser

Journal of Synchrotron Radiation, EarlyView.
We demonstrate a fast, robust and sensor‐free approach to X‐ray speckle tracking that enables shot‐to‐shot wavefront characterization at high‐repetition‐rate X‐ray free‐electron lasers. Our measurements reveal a hierarchy of wavefront fluctuations indicative of instabilities in the accelerator and beamline optics at the European XFEL.Wavefront ...
Trey Guest, Patrik Vagovič, Luigi Adriano, Johan Bielecki, Sarlota Birnsteinova, Rita Graceffa, Jayanath Koliyadu, Kaye Morgan, Hiiro Moriyama, Daniel Mosko, Grant van Riessen, Kristian Sabol, Tokushi Sato, Peter Szeles, Zane Taylor, Jozef Uličný, Richard Bean, Adrian P. Mancuso, Brian Abbey   +18 more
wiley   +1 more source

Hyperspectral tomographic diffractive microscopy: Development and applications

Journal of Microscopy, EarlyView.
Abstract Tomographic Diffractive Microscopy (TDM) provides label‐free three‐dimensional imaging of transparent samples with resolution surpassing confocal limits. At IRIMAS, successive instrumental developments since 2009 have enhanced TDM capabilities through transmission, reflection, isotropic, polarisation‐sensitive, and dual‐view configurations ...
Leonardo Pestana Legori, Carlos Alberto Chacón Ávila, Matthieu Debailleul, Nicolas Verrier, Olivier Haeberlé   +4 more
wiley   +1 more source

Aharonov–Bohm Effect for Cooper Pairs in Kerr Spacetime: Gravitomagnetic Phase Shifts From Frame Dragging

Annalen der Physik, Volume 538, Issue 8, August 2026.
ABSTRACT The unification of quantum mechanics and general relativity remains a central problem in fundamental physics. Here, we study the gravitomagnetic Aharonov–Bohm (AB) effect for Cooper pairs in Kerr spacetime. Frame‐dragging by a rotating black hole (BH) generates an effective vector potential through the off‐diagonal metric term gtϕ$g_{t\phi }$,
Erdem Sucu, İzzet Sakallı
wiley   +1 more source

Accuracy of intraocular lens power calculation using partial coherence interferometry and OKULIX ray tracing software in high myopic cataract patients

Delta Journal of Ophthalmology, 2017
Purpose The aim of the study was to evaluate the accuracy of intraocular lens (IOL) power calculation using partial coherence interferometry and OKULIX ray tracing software in high myopic cataract patients. Patients and methods This retrospective study
Karim M Nabil
doaj   +1 more source

Advances in Position‐Momentum Entanglement: A Versatile Tool for Quantum Technologies

Laser &Photonics Reviews, Volume 20, Issue 15, 7 August 2026.
Position–momentum entanglement constitutes a high‐dimensional continuous‐variable resource in quantum optics. Recent advances in its generation, characterization, and control are reviewed, with emphasis on spontaneous parametric down‐conversion and modern measurement techniques.
Satyajeet Patil, Rajshree Swarnkar, Jonas L. Moos, Sebastian Töpfer, Sergio Tovar‐Pérez, Jorge Fuenzalida, Markus Gräfe   +6 more
wiley   +1 more source

Directional X‐Ray Scattering and Microtomography for Laboratory‐Based Imaging of Fibrous Materials and Biological Tissues

Small Science, Volume 6, Issue 8, August 2026.
A compact laboratory X‐ray system enables directional dark‐field imaging and tomography with sensitivity to scattering along two orthogonal directions. The approach provides volumetric mapping of sub‐resolution microstructure in engineering and biological samples, which reveals structural heterogeneity, fiber organization, and anisotropic scattering ...
Carlos Navarrete‐León, Álvaro José González‐Grajales, Harry Allan, Adam Doherty, Alissa Parmenter, Rocco D’Antuono, David Bate, Alberto Astolfo, Silvia Cipiccia, Charlotte K. Hagen, Alessandro Olivo, Marco Endrizzi   +11 more
wiley   +1 more source

Assessing Fire‐Induced Permafrost Ground Deformation and Environmental Drivers Using Interferometric Synthetic Aperture Radar and Machine Learning

Earth and Space Science, Volume 13, Issue 8, August 2026.
Abstract Arctic fires in permafrost landscapes have become more frequent in recent years with record fire years in Eastern Siberia in 2019, 2020 and 2021. The consumption of organic layer and charring of the landscape can deepen active layer and long‐term permafrost ground deformation.
Sonam Wangchuk, Simone Maria Stuenzi, Moritz Langer, Ping Lu, Roger Michaelides, Kevin Schaefer, Sander Veraverbeke   +6 more
wiley   +1 more source

New IOL formula using anterior segment three-dimensional optical coherence tomography.

PLoS ONE, 2020
This retrospective study was aimed to compare prediction errors from various combinations of biometric data generated using optical coherence tomography (OCT) and develop a new intraocular lens (IOL) formula using biometric data.
Young-Sik Yoo, Woong-Joo Whang, Hyun-Seung Kim, Choun-Ki Joo, Geunyoung Yoon   +4 more
doaj   +1 more source