Results 141 to 150 of about 1,807,617 (309)
IEEE Photonics Journal, 2013 One challenge faced by the in-home light-emitting diode (LED) optical wireless communication is the optical noises. Here, we first experimentally characterize the effect of optical background noise to the performance of the LED optical wireless ...
C. W. Chow +3 more
doaj +1 more source
Dynamical phase alignment of sampling clock in optical performance monitoring system
, 2015 In an optical performance monitoring system for high-speed optical communications, the ultra-short optical pulse from the laser is divided into two parts.
Aiying Yang, Chao-Wei Liu, Lihui Feng
semanticscholar +1 more source
Journal of Applied Clinical Medical Physics, EarlyView.Abstract This study evaluates various radiotherapy techniques for treating metastatic brain tumor (BT), focusing on non‐coplanar volumetric modulated arc radiotherapy (NC‐VMAT), coplanar VMAT (C‐VMAT), Helical TomoTherapy (HT), CyberKnife (CK), Gamma Knife (GK), and ZAP‐X.
Toshihiro Suzuki +9 more
wiley +1 more source
Nihon Kikai Gakkai ronbunshu, 2016 Structural health monitoring has been used to confirm the durability evaluation and safety of a structure in which long-term use is required. Because the transmission loss of the optical fiber sensor is extremely small, it can measure the present status ...
Yutaka HAYAMA +4 more
doaj +1 more source
Contamination of optical surfaces [PDF]
The effect of molecular contamination on Space Station optical surfaces is examined. In particular, contamination of solar voltaic power sources and optical solar reflectors for thermal control or solar dynamic power generation is addressed.
Arnold, Graham S., Hall, David F.
core +1 more source
Microfluidic system with a wireless paired emitter detector diode device as optical sensor for water quality monitoring [PDF]
, 2011 Increased demand for improved water management is driving need for water quality monitoring systems with greatly improved price/performance characteristics.
Benito-Lopez, Fernando +5 more
core +2 more sources
Optimization of Optical Frequency-domain Reflectometry for Dynamic Structural Health Monitoring using Distributed Optical Fiber Sensors [PDF]
, 2020 The goal of this project is to optimize the existing optical frequency-domain reflectometry (OFDR) method to facilitate dynamic structural health monitoring using Distributed Optical Fiber Sensors (DOFS) under field conditions. These sensors offer a cost-
Brooks, Parker
core +1 more source
IEEE Photonics Technology Letters, 2012 We propose a low-cost technique for simultaneous and independent optical signal-to-noise ratio (OSNR), chromatic dispersion (CD), and polarization-mode dispersion (PMD) monitoring in 40/56-Gb/s return-to-zero differential quadrature phase-shift keying ...
F. Khan +4 more
semanticscholar +1 more source
Bone‐wise rigid registration of femur, tibia, and fibula for the tracking of temporal changes
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Background Multiple myeloma (MM) induces temporal alterations in bone structure, such as osteolytic bone lesions, which are challenging to identify through manual image interpretation. The large variation in radiologists' assessments, even at expert centers, further complicates diagnosis.
Arttu Ruohola +5 more
wiley +1 more source
Calibration System with Optical Fibers for Calorimeters at Future Linear Collider Experiments [PDF]
arXiv, 2012 We report on several versions of the calibration and monitoring system dedicated to scintillator tile calorimeters built within the CALICE collaboration and intended for future linear collider experiments. Whereas the first, a 1 m3 analogue hadron calorimeter prototype, was already built and tested in beam, second-technological prototype-is currently ...
arxiv