Results 21 to 30 of about 1,105,025 (337)
Characterization and discrimination of soils by their reflected electromagnetic energy [PDF]
Pesquisa Agropecuária Brasileira, 2002 The objective of this work was to verify if reflected energy of soils can characterize and discriminate them. A spectroradiometer (Spectral reflectance between: 400-2,500 nm) was utilized in laboratory. The soils evaluated are located in Bauru region, SP,
José Alexandre M. Demattê
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CALSPEC: Wide Field Camera 3 Infrared Grism Spectrophotometry
Astronomical Journal, 2019 The collections of spectral energy distributions (SEDs) in the Hubble Space Telescope (HST) CALSPEC database are augmented by 19 infrared (IR) SEDs from Wide Field Camera 3 (WFC3) IR grism spectra.
R. Bohlin, S. Deustua
semanticscholar +1 more source
Journal of Nigerian Society of Physical Sciences, 2022 Nanoparticles, NPs synthesis has gained attention recently due to their ease of preparation (especially green synthesis), availability of raw materials and usefulness. The green synthesis of copper nanoparticles (CuNPs) was done using Tea leaves extract-
Boniface Tersoo Iorhuna +5 more
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Yankuang ceshi, 2022 BACKGROUND Petroleum oil is one of the necessary indicators for environmental monitoring, which mainly exists in the form of hydrocarbons. Therefore, infrared spectrophotometry is one of the most reliable methods to determine the total amount of ...
AN Caixiu +5 more
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Multi-wavelength spectrophotometry of EX Hydrae [PDF]
Astron.Astrophys. 382 (2002) 984, 2001 We present phase-resolved infrared and optical spectrophotometry of the intermediate polar EX Hya supplemented by archival ultraviolet data. The spin-modulated emission from the accretion funnel and the emission from the accretion disk or ring contain substantial optically thin components.
arxiv +1 more source
Weather on Other Worlds. VI. Optical Spectrophotometry of Luhman 16B Reveals Large-amplitude Variations in the Alkali Lines [PDF]
, 2021 Using a novel wide-slit, multi-object approach with the GMOS spectrograph on the 8-meter Gemini South telescope, we have obtained precise time-series spectrophotometry of the binary brown dwarf Luhman 16 at optical wavelengths over two full nights. The B component of this binary system is known to be variable in the red optical and near-infrared with a
arxiv +1 more source
Is it possible to predict milk processing into butter using infrared spectroscopy?
Biotechnologie, Agronomie, Société et Environnement, 2021 Description of the subject. Given the current low price of milk, a lot of producers have decided to process their milk into products with a higher added-value, including butter. However, all milks are not suitable to be transformed into butter.
Émilie Lefébure +8 more
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Fourier Transform Infrared Spectrophotometry Studies of Chromium Trioxide-Phthalic Acid Complexes
, 2016 In the present investigation Cr-metal complexes has been prepared using chromium trioxide and phthalic acid. FTIR spectra of solid samples were recorded.
M. Mishra
semanticscholar +1 more source
Ultracool Dwarfs Observed with the Spitzer Infrared Spectrograph. I. An Accurate Look at the L-to-T Transition at $\sim$300 Myr from Optical through Mid-infrared Spectrophotometry [PDF]
, 2021 We present $Spitzer$ IRS 5--14 $\mu$m spectra and 16 $\mu$m and 22 $\mu$m photometry of the T2.5 companion to the $\sim$300 Myr-old G0V star HN Peg. We incorporate previous 0.8--5 $\mu$m observations to obtain the most comprehensive spectral energy distribution of an intermediate-gravity L/T-transition dwarf which, together with an accurate Gaia EDR3 ...
arxiv +1 more source
The effect of constitutive pigmentation on the measured emissivity of human skin.
PLoS ONE, 2020 BackgroundThe measurement of body temperature has become commonplace in the current COVID-19 pandemic. Body temperature can be measured using thermal infrared imaging, a safe, non-contact method that relies on the emissivity of the skin being known to ...
Matthew Charlton +6 more
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