Results 81 to 90 of about 1,752,631 (186)

Comparison study of algorithms and accuracy in the wavelength scanning interferometry [PDF]

, 2012
Wavelength scanning interferometry (WSI) can be used for surface measurement with discontinuous surface profiles by producing phase shifts without any mechanical scanning process.
Gao, F., Muhamedsalih, Hussam, Jiang, Xiangqian, Jiang, Xiang, Gao, Feng   +4 more
core   +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

Partial coherence interferometry versus immersion ultrasonography for axial length measurement in children [PDF]

Journal of Cataract and Refractive Surgery, 2010
To determine whether measurements obtained by partial coherence interferometry (PCI) correlate well with measurements obtained using immersion ultrasound (US) in children.Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia, USA.Evaluation of a diagnostic test or technology.The charts of pediatric patients who had cataract
Phoebe D, Lenhart, Amy K, Hutchinson, Michael J, Lynn, Scott R, Lambert   +3 more
openaire   +2 more sources

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

MULTIBASELINE POLARIMETRIC SAR INTERFEROMETRY FOREST HEIGHT INVERSION APPROACHES [PDF]

, 2011
Polarimetric SAR interferometry (Pol-InSAR) is a radar remote sensing technique that is sensitive to the vertical distribution of scattering processes in volumes.
Lee, Seung-Kuk, Hajnsek, Irena, Kugler, Florian, Papathanassiou, Konstantinos   +3 more
core  

Polynomial‐shaped electrodes for adaptive X‐ray optics

Journal of Synchrotron Radiation, EarlyView.
A shaped electrode design for lithium niobate adaptive X‐ray mirrors connects actuator degrees of freedom to specific polynomial orders, enabling general shape control and the correction of defocus, coma and fourth‐order aberrations with a limited number of inputs.For adaptive mirrors on X‐ray beamlines and optical systems, we describe a strategy for ...
Kenneth A. Goldberg, Francesco Marzari, Grant D. Cutler   +2 more
wiley   +1 more source

Crystallography of organic energetic materials: thermoelastic properties and equation of state

Acta Crystallographica Section B, EarlyView.
Thermoelastic properties and equation‐of‐state parameters of 16 organic energetic molecular crystals are systematically compiled and compared from temperature‐ and pressure‐dependent crystallographic data. The analysis highlights anisotropic thermal expansion and compressibility and identifies structural factors governing the mechanical response of ...
Mathieu Guerain
wiley   +1 more source

Surface imaging of metallic material fractures using optical coherence tomography [PDF]

, 2014
We demonstrate the capability of optical coherence tomography (OCT) to perform topography of metallic surfaces after being subjected to ductile or brittle fracturing.
Demian, D., Hutiu, G., Bradu, Adrian, Podoleanu, Adrian G.H., Duma, V.F.   +4 more
core   +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

Optical coherence tomography and scanning laser ophthalmoscopy: Approaches to dual-channel retinal tissue imaging [PDF]

, 2014
We report a Talbot bands-based optical coherence tomography (OCT) system capable of producing longitudinal B-scan OCT images and en-face scanning laser ophthalmoscopy (SLO) images of the human retina in-vivo, with various degrees of ...
Adrian Bradu, Bradu, A., Marques, M.J., Podoleanu, A.G., Manuel J. Marques, Adrian Gh. Podoleanu   +5 more
core   +1 more source