Results 101 to 110 of about 150,220 (302)

Swept source optical coherence tomography and optical coherence tomography angiography in pediatric enhanced S-cone syndrome: a case report

Journal of Medical Case Reports, 2018
Background Enhanced S-cone syndrome is an autosomal recessive retinal dystrophy related to a defect in a nuclear receptor gene (NR2E3) that leads to alteration in cells development from rod to S-cone. This retinal dystrophy may be associated with retinal
Angelo Maria Minnella, Valeria Pagliei, Maria Cristina Savastano, Matteo Federici, Matteo Bertelli, Paolo Enrico Maltese, Giorgio Placidi, Giovanni Corbo, Benedetto Falsini, Aldo Caporossi   +9 more
doaj   +1 more source

Comparative signal-to-noise analysis of fibre-optic based optical coherence tomography systems

, 2005
Several optical coherence tomography ( OCT) systems are proposed using optical. fibre components and based around Fizeau sensing interferometers. The theoretical signal- to- noise ratio ( SNR) is calculated for each of the proposed configurations ...
Beddows, R., Casaubieilh, P., Tatam, Ralph P., Ford, Helen D.   +3 more
core   +1 more source

Fibre imaging bundles for full-field optical coherence tomography [PDF]

, 2007
An imaging fibre bundle is incorporated into a full-field imaging OCT system, with the aim of eliminating the mechanical scanning currently required at the probe tip in endoscopic systems.
Tatam, Ralph P., Ford, Helen D.
core   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Noninvasive, In Vivo Assessment of Mouse Retinal Structure Using Optical Coherence Tomography [PDF]

, 2009
BACKGROUND: Optical coherence tomography (OCT) is a novel method of retinal in vivo imaging. In this study, we assessed the potential of OCT to yield histology-analogue sections in mouse models of retinal degeneration.
Gesine Huber, Huber, G., Muehlfriedel, Regine, Edda Fahl, Jan Wijnholds, Beck, SC, Remé Charlotte E., Tanimoto, Naoyuki, Tanimoto Naoyuki, Pacal, M, Van de Pavert, S.A., Fischer M. Dominik, Fischer, M.D., Pacal Marek, Christian Grimm, Muehlfriedel Regine, Wenzel, Andreas, Charlotte E Remé, Charlotte E. Remé, Pacal, Marek, Serge A van de Pavert, M. Dominik Fischer, Rod Bremner, Wenzel, A., Bremner Rod, Remé, Charlotte E, Fischer, M Dominik, Susanne C. Beck, Huber, Gesine, Wijnholds, J, Fahl, E, Beck, S.C., Marek Pacal, Grimm Christian, Wenzel, A, Regine Muehlfriedel, Huber Gesine, Wijnholds, Jan, Tanimoto, N, Bremner, R., Reme, C.E., Wijnholds, Jan; https://orcid.org/, Bremner, R, Seeliger Mathias W., Beck, Susanne C., Fischer, M. Dominik, Mathias W Seeliger, Wijnholds Jan, Bremner, Rod, van de Pavert Serge A., M Dominik Fischer, Andreas Wenzel, Mühlfriedel, Regine, Tanimoto, N., Fahl, E., Seeliger, Mathias W, Fischer, Manuel, Beck Susanne C., Seeliger, Mathias W., Remé, Charlotte E., Van De Pavert, SA, Fahl, Edda, Pacal, M., Remé, CE, van de Pavert, Serge A., Beck, Susanne C; https://orcid.org/, Huber, G, Grimm, C., Seeliger, MW, Wenzel Andreas, Fahl Edda, Mathias W. Seeliger, Pavert, S.A. van de, Grimm, C, Grimm, Christian, Grimm, Christian; https://orcid.org/, Muehlfriedel, R., Serge A. Van De Pavert¤b, Wijnholds, J., van de Pavert, Serge A, Susanne C Beck, Fischer, MD, Muehlfriedel, R, Seeliger, M.W., Naoyuki Tanimoto   +84 more
core   +1 more source

Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Ludger Overmeyer, Annika Raatz   +5 more
wiley   +1 more source

Sub-diffusion flow velocimetry with number fluctuation optical coherence tomography

, 2023
We show number fluctuations dynamic light scattering optical coherence tomography (OCT) for measuring extremely slow, sub-diffusion flows of dilute particle suspensions.
Kalkman, J. (author), Cheishvili, K. (author)   +1 more
core   +1 more source

Assessing Altered Coating Adhesion on Plasma‐Deoxidized Surfaces Under Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
This study demonstrates the effectiveness of atmospheric pressure plasma pretreatment in modifying silicon and stainless steel surfaces to improve adhesion. Argon‐hydrogen plasma increases surface roughness and improves adhesion strength, whereas pure argon results in smoother surfaces and structural changes.
Selina Raumel, Lara Kuhr, Khemais Barienti, Sebastian Herbst, Florian Nürnberger, Hans Jürgen Maier, Marc C. Wurz   +6 more
wiley   +1 more source

Multimodal images of chronic branch retinal vein occlusion

International Medical Case Reports Journal, 2017
Stephen G Schwartz, Armando Monroig, Harry W Flynn Jr Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA Abstract: Two illustrative cases of chronic branch retinal vein occlusion ...
Schwartz SG, Monroig A, Flynn HW Jr
doaj  

Imaging fibre bundles for Fizeau-based optical coherence tomography [PDF]

, 2008
An OCT system incorporating a coherent fibre imaging bundle is described. Fibres are accessed sequentially by a beam focused onto the input face of the bundle, allowing 2D or 3D images to be acquired using point detection.
Tatam, Ralph P., Sarantavgas, G. F., Ford, Helen D.   +2 more
core   +1 more source