Results 11 to 20 of about 3,105,592 (333)

Formation of porous clay ceramic using sago waste ash as a prospective additive material with controllable milling [PDF]

open access: yesScience of Sintering, 2014
A novel type of ceramic material was produced by mixing sago waste ash from the sago processing industry in Indonesia with clay. The composition was prepared by adding 50 %wt amount of sago waste into the clay, then a series of samples was ...
Aripin H.   +9 more
doaj   +1 more source

On the Optical Properties of Thin‐Film Vanadium Dioxide from the Visible to the Far Infrared [PDF]

open access: yesAnnals of Physics, 2019
The insulator‐to‐metal transition (IMT) in vanadium dioxide (VO2) can enable a variety of optics applications, including switching and modulation, optical limiting, and tuning of optical resonators.
C. Wan   +15 more
semanticscholar   +1 more source

Machine learning for pattern and waveform recognitions in terahertz image data

open access: yesScientific Reports, 2021
Several machine learning (ML) techniques were tested for the feasibility of performing automated pattern and waveform recognitions of terahertz time-domain spectroscopy datasets. Out of all the ML techniques under test, it was observed that random forest
Dmitry S. Bulgarevich   +3 more
doaj   +1 more source

Far‐Infrared Galaxies in the Far‐Ultraviolet [PDF]

open access: yesThe Astrophysical Journal, 2002
In an effort to better understand the UV properties of ultraluminous infrared galaxies (ULIGs), and compare them to the rest-frame UV properties of high redshift sub-mm and Lyman-break galaxies, we have obtained far- and near-UV imaging observations (lambda_{eff}=1457 , lambda_{eff}=2364 , respectively) of two luminous infrared galaxies (LIGs--VV 114
Charles C. Steidel   +6 more
openaire   +4 more sources

Herschel Space Observatory - An ESA facility for far-infrared and submillimetre astronomy [PDF]

open access: yes, 2010
Herschel was launched on 14 May 2009, and is now an operational ESA space observatory o ering unprecedented observational capabilities in the far-infrared and submillimetre spectral range 55 671 m.
G. Pilbratt   +10 more
semanticscholar   +1 more source

The Gyrotrons as Promising Radiation Sources for THz Sensing and Imaging

open access: yesApplied Sciences, 2020
The gyrotrons are powerful sources of coherent radiation that can operate in both pulsed and CW (continuous wave) regimes. Their recent advancement toward higher frequencies reached the terahertz (THz) region and opened the road to many new applications ...
Toshitaka Idehara   +3 more
doaj   +1 more source

Far-infrared detection of methylene [PDF]

open access: yesAstronomy & Astrophysics, 2005
11 pages, 4 figures, accepted for publication in A& ...
Polehampton, E. T.   +4 more
openaire   +3 more sources

A Review of Textiles Reflecting FIR Produced by the Human Body

open access: yesAUTEX Research Journal, 2022
The human body constantly produces thermal electromagnetic radiation with a maximum of about 10 μm. This thermal radiation has a number of positive effects on the human body and, in addition, allows the insulation under clothing to be improved under ...
Militký Jiří   +6 more
doaj   +1 more source

FIRI—A far-infrared interferometer [PDF]

open access: yesExperimental Astronomy, 2008
Proposal developed by a large team of astronomers from Europe, USA and Canada and submitted to the European Space Agency as part of "Cosmic Vision 2015-2025"
Rob Ivison, Frank Helmich, Frank Helmich
openaire   +3 more sources

A Detection of Sgr A* in the Far Infrared [PDF]

open access: yesThe Astrophysical Journal, 2018
Abstract We report the first detection of the Galactic Center massive black hole, Sgr A*, at 100 μm and 160 μm. Our measurements were obtained with PACS on board the Herschel satellite. While the warm dust in the Galactic Center is too bright to allow for a direct detection of Sgr A*, we measure a significant and simultaneous variation ...
Oliver Pfuhl   +18 more
openaire   +3 more sources

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