Results 41 to 50 of about 2,867,702 (282)

Fiber-optic sensor for remote monitoring the γ-radiation of various powers

Journal of Physics: Conference Series, 2021
Abstract The necessity of improving the metrological characteristics and functional capabilities of the fiber-optic sensor for measurements at the large distances (more than 10 km) is substantiated. The new method for constructing a communication line with the fiber-optic sensor for controlling exposure dose in a large range of its ...
D S Dmitrieva, V V Davydov, V Y Rud
openaire   +1 more source

Glassy carbon formation from pyrolysis of polymeric coatings on fiber-optic sensors

Materials & Design
Deploying fiber-optic sensors in nuclear reactors requires a detailed understanding of radiation effects on the fiber materials and the transmitted signals.
Bryan Conry, J. Matthew Kurley, Daniel C. Sweeney, Christian M. Petrie   +3 more
doaj   +1 more source

A FIBER-OPTIC HYDROACOUSTIC PRESSURE SENSOR BASED ON INTERMODE INTERFERENCE [PDF]

Radio Physics and Radio Astronomy
Subject and Purpose. The use of the two-mode operation of an optical fi ber in fiber-optic sensors simplifies the interferometerdesign and enhances the reliability of sensing. Methods and Methodology.
I. V. Linchevskyi, M. V. Chursanova
doaj   +1 more source

Optimizing photoexcitation conditions for time‐resolved X‐ray solution scattering experiments

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering (TR‐XSS) is a powerful technique to visualize how proteins change their structure in real time after light activation. Selecting the right laser photoexcitation conditions—fluence, excitation geometry, and sample refresh rate—is critical to maximize the experimental signal while avoiding unwanted side effects ...
Matteo Levantino
wiley   +1 more source

Peculiarities of soft biological tissue perforation induced by near infrared laser radiation with optic fiber delivery

Journal of Biomedical Photonics & Engineering, 2018
The authors studied the process of perforation of soft biological tissue by continuous near infrared lasers (0.98 µm, 1.56 µm and 1.94 µm) with optic fiber delivery.
Alexandr K. Dmitriev, Alexey N. Konovalov, Vladimir N. Kortunov, Valerii A. Ulyanov   +3 more
doaj   +1 more source

SPECTRAL CHARACTERISTICS STUDY OF PHASE-SHIFTED FIBER BRAGG GRATINGS UNDER PRESSURE APPLIED PERPENDICULAR TO FIBER AXIS [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2018
Subject of Research.The paper presents the study of effect that occurs when pressure is applied to the phase-shifted fiber Bragg gratings perpendicular to the fiber axis. Method. Fiber Bragg gratings inscription was performed using Talbot interferometer,
Novikova V.A., Varzhel S.V., Dmitriev A.A, Zalesskaya Yu.K., Idrisov R.F.   +4 more
doaj   +1 more source

Posterior Disconnection Syndrome in Early‐Stage Adult‐Onset Cerebral Adrenoleukodystrophy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Adult‐onset cerebral adrenoleukodystrophy is potentially treatable but often difficult to recognize before advanced cerebral involvement. Herein, we describe three men with early‐stage disease who initially presented with subtle visual complaints rather than subcortical dementia. Targeted neuropsychological testing revealed higher‐order visual
Kazuto Katsuse, Takashi Matsukawa, Yumiko Nakamura, Kazuo Kakinuma, Shoko Ota, Ryo Hara, Saki Nakashima, Kaoru Ito, Yutaro Nakamori, Toshiyuki Kakumoto, Masashi Hamada, Shigenori Kanno, Kyoko Suzuki, Tatsushi Toda   +13 more
wiley   +1 more source

Generation of Vortex Optical Beams Based on Chiral Fiber-Optic Periodic Structures

Sensors, 2020
In this paper, we consider the process of fiber vortex modes generation using chiral periodic structures that include both chiral optical fibers and chiral (vortex) fiber Bragg gratings (ChFBGs).
Azat Gizatulin, Ivan Meshkov, Irina Vinogradova, Valery Bagmanov, Elizaveta Grakhova, Albert Sultanov   +5 more
doaj   +1 more source

High performance architecture design for large scale fibre-optic sensor arrays using distributed EDFAs and hybrid TDM/DWDM [PDF]

, 2013
A distributed amplified dense wavelength division multiplexing (DWDM) array architecture is presented for interferometric fibre optic sensor array systems. This architecture employs a distributed erbium doped fibre amplifier (EDFA) scheme to decrease the
Kingsley, S.A., Austin, E.A., Nash, P.J., Richardson, D.J., Liao, Y.   +4 more
core   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source