Results 111 to 120 of about 1,807,617 (309)
Distributed Fiber Optics Strain Measurements for Monitoring Geotechnical Structures [PDF]
Recent advances in strain measurement using optical fibers provide new opportunities for monitoring the performance of geotechnical structures during and after construction.
Bennett, Peter J.+2 more
core +1 more source
Performance Monitoring of Optical Network using Bit Error Rate [PDF]
With the increase in demand of broadband services, channel complexity has been increased. Therefore it has become necessary to monitor the performance of optical networks.
, Ankush Chaudhary, Karamjit Kaur, Anil Kumar
core +2 more sources
ORCHESTRA - Optical performance monitoring enabling flexible networking
An optical network, like any system, has to be observable before it can become subject to optimization, and this is the main capability that ORCHESTRA project introduces.
K. Christodoulopoulos+18 more
semanticscholar +1 more source
The study presents the mechanical and in situ sensing performance of digital light processing‐enabled 2D lattice nanocomposites under monotonic tensile and repeated cyclic loading, and provides guidelines for the design of architectures suitable for strain sensors and smart lightweight structures.
Omar Waqas Saadi+3 more
wiley +1 more source
Micro-sized tunable liquid crystal optical filters [PDF]
Liquid Crystal Arrayed Microcavities (LCAM) is a new technology for ultra-narrow optical filtering (FWHM ~ 0.1 nm) that uses pico-liter volume Fabry-Perot type optical cavities filled with liquid crystal for tuning. LCAMs are sub-nm spectral resolution filters, which utilize well-established laser writing, thin film deposition, and wafer manufacturing ...
arxiv +1 more source
Azobenzene-based gel coated fibre Bragg grating sensor for moisture measurement [PDF]
A fibre Bragg grating sensor is coated with a novel polymer gel in order to investigate its suitability for nondestructive measurement of moisture in materials that can potentially lose their integrity due to moisture ingress.
Moniruzzaman, Mohammed, Rock, John
core +3 more sources
Simulations of Observations with the Optical Monitor of the X-Ray Multi-Mirror Satellite [PDF]
This paper addresses the question of the observations to be performed with the Optical Monitor (OM) of the X-ray Multi-Mirror Satellite (XMM) under several aspects. First, we discuss XMM-OM's photometric system and its colour transformations towards the standard UBV system.
arxiv +1 more source
Source monitoring for continuous-variable quantum key distribution [PDF]
The noise in optical source needs to be characterized for the security of continuous-variable quantum key distribution (CVQKD). Two feasible schemes, based on either active optical switch or passive beamsplitter are proposed to monitor the variance of source noise, through which, Eve's knowledge can be properly estimated.
arxiv +1 more source
Characterization of a graphite epoxy optical bench during thermal vacuum cycling [PDF]
In-situ monitoring of the Wide-Field/Planetary Camera, a Hubble Space Telescope science instrument, was performed in a vacuum environment to better understand the formation of ice on cooled optical detectors.
Hansen, Patricia A.+3 more
core +1 more source
Abstract Purpose Cardiac motion may degrade dose distribution during stereotactic arrhythmia radioablation using the CyberKnife system, a robotic radiosurgery system. This study evaluated the dose distribution changes using a self‐made cardiac dynamic platform that mimics cardiac motion. Methods The cardiac dynamic platform was operated with amplitudes
Takayuki Miyachi+6 more
wiley +1 more source