Results 21 to 30 of about 4,583,978 (297)

Overview of the EU FP7-project HISTORIC [PDF]

open access: yes, 2010
HISTORIC aims to develop and test complex photonic integrated circuits containing a relatively large number of digital photonic elements for use in e.g. all-optical packet switching.
Chrysos, Nikolaos   +10 more
core   +6 more sources

Time Shared Optical Network (TSON): A Programmable Network Edge Solution for Multi-Access Support

open access: yesApplied Sciences, 2019
The time shared optical network (TSON) has been proposed as a dynamic optical transport network solution to provide high bandwidth and low latency connectivity in support of 5G technology and beyond.
Arash Farhadi Beldachi   +3 more
doaj   +1 more source

Automated Archaeological Feature Detection Using Deep Learning on Optical UAV Imagery: Preliminary Results

open access: yesRemote Sensing, 2022
This communication article provides a call for unmanned aerial vehicle (UAV) users in archaeology to make imagery data more publicly available while developing a new application to facilitate the use of a common deep learning algorithm (mask region-based
Mark Altaweel   +5 more
doaj   +1 more source

Ritchey–Common test for a 1.5 m–diameter flat mirror [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2014
This study intensively investigates the Ritchey–Common test to enable high-precision measurement of a plane mirror figure with a diameter of 1.5 m. We present a method for separating the adjustment error combined with tested data and the least–square ...
Zhu S., Zhang X. H.
doaj   +1 more source

A Fused Radar–Optical Approach for Mapping Wetlands and Deepwaters of the Mid–Atlantic and Gulf Coast Regions of the United States

open access: yesRemote Sensing, 2021
Tidal wetlands are critically important ecosystems that provide ecosystem services including carbon sequestration, storm surge mitigation, water filtration, and wildlife habitat provision while supporting high levels of biodiversity.
Brian T. Lamb   +2 more
doaj   +1 more source

Optical depth in polarised Monte Carlo radiative transfer [PDF]

open access: yes, 2019
Context: The Monte Carlo method is the most widely used method to solve radiative transfer problems in astronomy, especially in a fully general 3D geometry. A crucial concept in any Monte Carlo radiative transfer code is the random generation of the next
Baes, Maarten   +3 more
core   +3 more sources

Preparation and Characterization of Vanadium Pentoxide Using Spray Pyrolysis Technique

open access: yesJournal of Scientific Research in Science, 2021
A chemical spray pyrolysis technique was used to deposit a vanadium pentoxide (V2O5) thin films on glass substrate with a deposition temperature ranged from 300°C to 500°C in step of 50°C.
Mai A. Mohamed   +2 more
doaj   +1 more source

Recent Advances in Cellulose-Based Biosensors for Medical Diagnosis

open access: yesBiosensors, 2020
Cellulose has attracted much interest, particularly in medical applications such as advanced biosensing devices. Cellulose could provide biosensors with enhanced biocompatibility, biodegradability and non-toxicity, which could be useful for biosensors ...
Samir Kamel, Tawfik A. Khattab
doaj   +1 more source

Progress in Optical and Electrochemical Sensors for Detection of Quinolone Antibiotics in Food

open access: yesShipin gongye ke-ji, 2023
Quinolone antibiotic residues present a high risk for food safety and have gained widespread attention. Nanomaterials based sensors have the advantages of on-site application, sensitivity, and small sample volume requirement and has attracted significant
Tianfeng LÜ   +6 more
doaj   +1 more source

Optical near-fields & nearfield optics

open access: yesBeilstein Journal of Nanotechnology, 2014
Optical methods provide exceedingly powerful tools in science and technology for measuring, analyzing and manipulating, from optical microscopy and spectroscopy to the characterization of ultrafast processes by femtosecond pulses and the modification of materials by intense laser radiation. However, when it comes to applications in the nanometer-regime,
Meixner, Alfred J., Leiderer, Paul
openaire   +4 more sources

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