Results 11 to 20 of about 1,007,079 (285)

Non-coherent detection for ultraviolet communications with inter-symbol interference [PDF]

open access: yes, 2020
Ultraviolet communication (UVC) serves as a promising supplement to share the responsibility for the overloads in conventional wireless communication systems.
Hu, Wenxiu   +5 more
core   +1 more source

Quasars and the Big Blue Bump [PDF]

open access: yes, 2004
We investigate the ultraviolet-to-optical spectral energy distributions (SEDs) of 17 active galactic nuclei (AGNs) using quasi-simultaneous spectrophotometry spanning 900-9000 Angstrom (rest frame).
Anuradha Koratkar   +19 more
core   +1 more source

Studying the Nonlinear Optical Properties of Fluoride Laser Host Materials in the Ultraviolet Wavelength Region

open access: yesApplied Sciences, 2021
Fluoride host materials doped with trivalent cerium ions have previously been demonstrated as successful laser materials in the ultraviolet wavelength region.
Duong Van Pham   +6 more
doaj   +1 more source

Breakthroughs in photonics 2012: Nano-structuring and nano-fabrication enabled by extreme ultraviolet laser sources

open access: yesIEEE Photonics Journal, 2013
Two- and three-dimensional structures with submicron dimensions, such as photonic crystals, patterned magnetic media, micro- and nano-electromechanical systems (MEMs/NEMs), microfluidics chips, etc., are becoming ubiquitous in multiple applications ...
M. C. Marconi
doaj   +1 more source

A Study of UV Resistance of a Water-based Polyurethane Lacquer Containing Nano Ceria [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2013
Cerium oxide (Ceria) nano particle, as photodegradation prevention agent was studied in water-based polyurethane clear coat  systems. Polyurethane coatings show superior weathering resistance compared with acrylic melamine systems.
Arash Saadat-Monfared, Mohsen Mohseni
doaj   +1 more source

Drying Behavior and Curcuminoids Changes in Turmeric Slices during Drying under Simulated Solar Radiation as Influenced by Different Transparent Cover Materials

open access: yesFoods, 2022
Dried turmeric is used as a spice and traditional medicine. The common drying methods for turmeric (Curcuma longa L.) are sun drying and solar drying.
Nilobon Komonsing   +4 more
doaj   +1 more source

The Ultraviolet Brightest Type Ia Supernova 2011de [PDF]

open access: yes, 2014
We present and discuss the UV/optical photometric light curves and absolute magnitudes of the Type Ia supernova (SN) 2011de from the Swift Ultraviolet/Optical Telescope.
Brown, Peter J.
core   +3 more sources

Compact Plasma-Based Soft X-Ray Lasers

open access: yesIEEE Photonics Journal, 2010
This paper reviews the major accomplishments in the demonstration of plasmabased soft x-ray lasers in 2009. Advances in shaping the plasma density and increasing the pump power have enabled the engineering of table-top laser systems operating at ...
Jorge J. Rocca
doaj   +1 more source

Does Ultraviolet Radiation Exhibit Antimicrobial Effect against Oral Pathogens Attached on Various Dental Implant Surfaces? A Systematic Review

open access: yesDentistry Journal, 2022
Background: Dental implant therapy is currently identified as the most effective treatment for edentulous patient. However, peri-implant inflammations were found to be one of the most common complications that leads to the loss and failure of dental ...
Fahad A. Abdullatif, Mansour Al-Askar
doaj   +1 more source

On Quantum Field Theory with Nonzero Minimal Uncertainties in Positions and Momenta [PDF]

open access: yes, 1996
We continue studies on quantum field theories on noncommutative geometric spaces, focusing on classes of noncommutative geometries which imply ultraviolet and infrared modifications in the form of nonzero minimal uncertainties in positions and momenta ...
Achim Kempf   +6 more
core   +2 more sources

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