Results 21 to 30 of about 33,058 (242)

Euclid. III. The NISP instrument [PDF]

open access: yesAstronomy & Astrophysics
The Near-Infrared Spectrometer and Photometer (NISP) on board the satellite provides multiband photometry and $R slitless grism spectroscopy in the 950--2020\,nm wavelength range.
Euclid Collaboration K. Jahnke   +499 more
semanticscholar   +1 more source

Emprego do Algoritmo Busca Tabu na determinação de principios ativos em fármacos

open access: yesRevista Produção Online, 2003
A new methodology of analysis for the quantification of antihipertensive drugs is provided in this work, using tabu search optimization with infrared spectroscopy by diffuse reflectance ...
Pedro Henrique de Almeida Konzen   +4 more
doaj   +1 more source

Euclid. IV. The NISP Calibration Unit [PDF]

open access: yesAstronomy & Astrophysics
The near-infrared calibration unit (NI-CU) on board NISP is the first astronomical calibration lamp based on LED to be operated in space. is a mission in ESA's Cosmic Vision 2015--2025 framework to explore the dark universe and provide a next-level ...
Euclid Collaboration F. Hormuth   +499 more
semanticscholar   +1 more source

Near-infrared laser-mediated drug release and antibacterial activity of gold nanorod–sputtered titania nanotubes

open access: yesJournal of Tissue Engineering, 2018
The infection control of implants is one of the hot issues in the field of medicine and dentistry. In this study, we prepared gold nanorod–sputtered titania nanotubes on titanium surface, which is the main component of implant material, and aimed to ...
Kyoung-Suk Moon   +3 more
doaj   +1 more source

The high-field polar RX J1007.5-2017 [PDF]

open access: yes, 2012
We report optical and X-ray observations of the high-field polar RXJ1007.5-2017 performed between 1990 and 2012. It has an orbital period of 208.60 min determined from the ellipsoidal modulation of the secondary star in an extended low state.
Beuermann, K.   +4 more
core   +2 more sources

Transmission enhancement through square coaxial apertures arrays in metallic film: when leaky modes filter infrared light

open access: yes, 2014
We consider arrays of square coaxial apertures in a gold layer and study their diffractive behavior in the far infrared region. These structures exhibit a resonant transmission enhancement that is used to design tunable bandpass filters.
Bedu, Frédéric   +8 more
core   +3 more sources

Four nearby L dwarfs [PDF]

open access: yes, 1999
We present spectroscopic, photometric and astrometric observations of four bright L dwarfs identified in the course of the 2MASS near-infrared survey. Our spectroscopic data extend to wavelengths shortward of 5000\AA in the L0 dwarf 2MASSJ0746+2000 and ...
A. J. Burgasser   +15 more
core   +3 more sources

An infrared-submillimeter study of star-forming regions selected by the ISOSS 170um survey

open access: yes, 2008
Using the ISOPHOT Serendipity Survey (ISOSS) at 170um a sample of galactic star-forming regions exhibiting very cold dust temperatures (< 20 K) and high masses (> 100 M_sun) has been established.
Beuther   +43 more
core   +1 more source

Spitzer spectroscopy of circumstellar disks in the 5 Myr old upper Scorpius OB association [PDF]

open access: yes, 2009
We present mid-infrared spectra between 5.2 and 38 μm for 26 disk-bearing members of the ~5 Myr old Upper Scorpius OB association obtained with the Infrared Spectrograph (IRS) onboard the Spitzer Space Telescope. We find clear evidence for changes in the
Carpenter, John M., Dahm, S. E.
core   +1 more source

L-cysteine modified silver nanoparticles for selective and sensitive colorimetric detection of vitamin B1 in food and water samples

open access: yesHeliyon, 2020
The use of L-cysteine modified silver nanoparticles (Cys-capped AgNPs) as a colorimetric probe for determination of vitamin B1 (thiamine) is described in the present work.
Beeta Rani Khalkho   +6 more
doaj   +1 more source

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