Results 81 to 90 of about 31,642 (200)

MXene-Based Fiber-Optic Humidity Sensor for Fast Human Breath Monitoring

open access: yesPhotonics
Breath is one of the most important physiological features of human life. In particular, it is significant to monitor the physical characteristics of breath, such as breath frequency and tidal volume. Breath sensors play an important role in the field of
Xiaokang Li   +7 more
doaj   +1 more source

Radiation and shielding study for the International Ultraviolet Explorer [PDF]

open access: yes
Technical advisory services to ensure integrity of parts and material exposed to energetic particle radiation for the IUE scientific instruments, spacecraft, and subsystems are provided.
Baze, M.   +6 more
core   +1 more source

Residual strain monitoring during composite manufacturing [PDF]

open access: yes, 2012
This work explores a new possibility in accurate measurement of multi-axial residual strains during the production of composite structures. It investigates the usability of the polarization dependent loss (PDL) of an optical fibre Bragg grating as a ...
Caucheteur, Christophe   +5 more
core   +1 more source

Analyses of space environment effects on active fiber optic links orbited aboard the LDEF [PDF]

open access: yes
The results of the 'Preliminary Analysis of WL Experiment no. 701, Space Environment Effects on Operating Fiber Optic Systems,' is correlated with space simulated post retrieval terrestrial studies performed on the M0004 experiment.
Berry, J. N.   +5 more
core   +1 more source

Design of a mine-used bus type optical substation

open access: yesMeikuang Anquan
The coal mine safety monitoring system plays a very important role in coal mine safety production. It mainly collects sensor disaster information such as methane and carbon monoxide through monitoring substations and analyzes it in real time to achieve ...
Fei DENG
doaj   +1 more source

Monitoring data of the openLAB research bridge – Part 1: Reference conditionOPARA

open access: yesData in Brief
Structural Health Monitoring (SHM) is emerging as an essential tool for ensuring the safety and longevity of an aging bridge infrastructure. Recent collapses, such as the Morandi Bridge in Genoa, Italy (2018), and the Carola Bridge in Dresden, Germany ...
Andreas Jansen   +5 more
doaj   +1 more source

Grating-Coupling-Based Excitation of Bloch Surface Waves for Lab-on-Fiber Optrodes

open access: yes, 2016
In this paper, we investigate the possibility to excite Bloch surface waves (BSWs) on the tip of single-mode optical fibers. Within this framework, after exploring an idealized, proof-of-principle grating-coupling-based scheme for on-tip excitation of ...
Castaldi, Giuseppe   +3 more
core   +1 more source

Development of a Ground-Based Aerial-Tracking Instrument for Open-Path Spectroscopy to Monitor Atmospheric Constituents [PDF]

open access: yes, 2019
A ground-based aerial-tracking instrument, known as the Ground Tracker, designed to provide spectral data to quantify greenhouse gases is under development.
Hodges, Haden
core   +2 more sources

High-precision fiber-optic temperature sensor based on Fabry-Perot interferometer with reflective thin-film multilayer structures

open access: yesНаучно-технический вестник информационных технологий, механики и оптики
An embodiment of a fiber-optic temperature sensor based on a Fabry-Perot interferometer and a scheme for interrogating an experimental sample of the sensor are proposed.
I. D. Moor   +6 more
doaj   +1 more source

Development of electrical test procedures for qualification of spacecraft against EID. Volume 1: The CAN test and other relevant data [PDF]

open access: yes
A combined experimental and analytical program to develop system electrical test procedures for the qualification of spacecraft against damage produced by space-electron-induced discharges (EID) occurring on spacecraft dielectric outer surfaces is ...
Harlacher, B. L.   +2 more
core   +1 more source

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