Results 21 to 30 of about 50,725 (202)

Training Graduate Students in Utilization of Analytical Instruments in a Failure Analysis Course [PDF]

open access: yes, 2019
Department of Engineering Technology at University of North Texas offers a graduate course on failure analysis (MSET 5150) during spring semesters. Partial requirement for the course is for students to submit a term paper based on their collected data ...
Gamez-Rivas, F.   +4 more
core   +1 more source

Exoplanet Research with the Stratospheric Observatory for Infrared Astronomy (SOFIA)

open access: yes, 2017
When the Stratospheric Observatory for Infrared Astronomy (SOFIA) was conceived and its first science cases defined, exoplanets had not been detected. Later studies, however, showed that optical and near-infrared photometric and spectrophotometric follow-
B Placek   +19 more
core   +1 more source

Synthesis of silver nanoparticles using plant extracts from Erythrina abyssinica aerial parts and assessment of their anti-bacterial and anti-oxidant activities

open access: yesResults 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

A 2.4 - 12 microns spectrophotometric study with ISO of Cygnus X-3 in quiescence

open access: yes, 2002
We present mid-infrared spectrophotometric results obtained with the ISO on the peculiar X-ray binary Cygnus X-3 in quiescence, at orbital phases 0.83 to 1.04.
A. Claret   +47 more
core   +1 more source

Synthesis, Characterization and Antimicrobial Activities of Copper-Tea Leaves (Camellia Sinensis) Extract Nanoparticles.

open access: yesJournal 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

Fourier transform infrared spectrophotometry and X-ray powder diffractometry as complementary techniques in characterizing clay size fraction of kaolin

open access: yesJournal of Applied Sciences and Environmental Management, 2005
This study aimed at demonstrating complementary roles offered by both Fourier transform infrared (FTIR) spectrophotometry and x-ray powder diffraction (XRPD) techniques in characterizing clay size fraction of kaolins.
Georges-Ivo E Ekosse
doaj   +1 more source

ISO observations and models of galaxies with Hidden Broad Line Regions

open access: yes, 2005
We present ISO mid-infrared spectrophotometry and far-infrared photometry of galaxies with Hidden Broad Line Regions (HBLR). We also present radiative transfer models of their spectral energy distributions which enable us to separate the contributions ...
A. Efstathiou   +58 more
core   +1 more source

5-micron photometry of late-type dwarfs [PDF]

open access: yes, 2001
We present narrowband-M photometry of nine low-mass dwarfs with spectral types ranging from M2.5 to L0.5. Combining the (L'-M') colours derived from our observations with data from the literature, we find colours consistent with a Rayleigh-Jeans flux ...
Berriman G.   +8 more
core   +3 more sources

Small Sample Infrared Spectrophotometry [PDF]

open access: yesReview of Scientific Instruments, 1955
Peer Reviewed ; http://deepblue.lib.umich.edu/bitstream/2027.42/70187/2/RSINAK-26-8-787-1 ...
openaire   +2 more sources

Simultaneous determination of triglycerides and cholesterol esters in serum by infrared spectrophotometry

open access: yesJournal of Lipid Research, 1964
With the use of a high-resolution grating infrared spectrophotometer, it is possible to analyze mixtures of cholesterol esters and triglycerides on the basis of the difference in their ester carbonyl absorption frequencies.
Norman K. Freeman
doaj   +1 more source

Home - About - Disclaimer - Privacy