Results 21 to 30 of about 1,094,709 (310)
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
doaj +1 more source
Autotrophic and Heterotrophic Growth Conditions Modify Biomolecole Production in the Microalga Galdieria sulphuraria (Cyanidiophyceae, Rhodophyta) [PDF]
, 2020 Algae have multiple similarities with fungi, with both belonging to the Thallophyte, a polyphyletic group of non-mobile organisms grouped together on the basis of similar characteristics, but not sharing a common ancestor.
Barone, R. +13 more
core +1 more source
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
Measurement of serum triglycerides by thin-layer chromatography and infrared spectrophotometry*
Journal of Lipid Research, 1963 A direct and nondestructive method for the quantitative determination of serum or plasma triglycerides has been developed. The lipid extract of 1 ml of serum is chromatographed on I-mm wet-thickness silicic acid layers prepared from a water–acetone ...
Kenneth Krell, Sami A. Hashim
doaj +1 more source
Results in Chemistry, 2022 In the present study, silver nanoparticles were synthesized using Erythrina abyssinica aerial parts as both reducing and capping agents. Three extracts were obtained from the plant using methanol, acetone and water.
Netai Mukaratirwa-Muchanyereyi +4 more
doaj +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
doaj +1 more source
The timing and location of dust formation in the remnant of SN 1987A [PDF]
, 2014 The discovery with the {\it Herschel Space Observatory} of bright far infrared and submm emission from the ejecta of the core collapse supernova SN\,1987A has been interpreted as indicating the presence of some 0.4--0.7\,M$_\odot$ of dust.
Barlow, M. J. +3 more
core +4 more sources
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
doaj +1 more source
First Results from the rapid-response spectrophotometric characterization of Near-Earth Objects [PDF]
, 2019 As part of our multi-observatory, multi-filter campaign, we present \rmi color observations of 82 Near-Earth Objects (NEOs) obtained with the RATIR instrument on the 1.5m robotic telescope at the San Pedro Martir's National Observatory in Mexico.
Axelrod, Tim +8 more
core +2 more sources
The high-field polar RX J1007.5-2017 [PDF]
, 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