Results 31 to 40 of about 579,715 (353)

On the Possibility of Using the Chemometric (Discriminant) Method of Analysis in the Comparative Study of Heroin

open access: yesТеория и практика судебной экспертизы, 2021
The paper aimed to ascertain the possibility of using the chemometric (discriminant) method when analyzing the results of mid-range IR spectroscopy and gas chromatography-mass spectrometry for a comparative study of heroin to establish a common source of
L. I. Modinova, N. A. Shcherbakov
doaj   +1 more source

IR Studies of the Cu Ions in Cu-Faujasites

open access: yesMolecules, 2019
The properties of Cu ions in dealuminated faujasite-type zeolites (Si/Al = 31) containing 1, 2, and 5 wt.% of Cu were investigated by IR spectroscopy with CO and NO as probe molecules.
Łukasz Kuterasiński   +3 more
doaj   +1 more source

Two-dimensional Thouless pumping of light in photonic moiré lattices

open access: yesNature Communications, 2022
Vibrational strong coupling (VSC) promises ultrasensitive IR spectroscopy and modification of material properties. Here, nanoscale mapping of VSC between organic molecules and individual IR nanoresonators is achieved by remote near-field spectroscopy.
Peng Wang   +6 more
doaj   +1 more source

Studying the Possibility of Application ir Spectroscopy for Raw Material Identification Valeriana wolgensis Kazak. and Valeriana dudia L.

open access: yesРазработка и регистрация лекарственных средств, 2022
Introduction. Recently, IR spectroscopy has been increasingly used to identify various groups of biologically active substances (BAS) in plant objects. It is known that plants are capable of accumulating various BAS.
O. A. Kolosova, O. V. Trineeva
doaj   +1 more source

Unveiling the nature of six HMXBs through IR spectroscopy [PDF]

open access: yes, 2008
The International Gamma-Ray Astrophyiscs Laboratory (INTEGRAL) is discovering a large number of new hard X-ray sources, many of them being HMXBs. The identification and spectral characterization of their optical/infrared counterparts is a necessary step ...
Bamba   +54 more
core   +3 more sources

2D IR Correlation Spectroscopy in Wood Science [PDF]

open access: yesMemoirs of the Scientific Sections of the Romanian Academy, 2012
Generalized 2D correlation spectroscopy is a well-established technique that provides considerable utility and benefit in various spectroscopic studies of polymers.
Carmen Mihaela Popescu   +2 more
doaj  

History of development of reconstructive-restorative surgery (50-years experience of the Clinic of General Surgery at the Siberian State Medical University)

open access: yesБюллетень сибирской медицины, 2008
The paper describes, in historic aspect, the main stages of development of reconstructive-restorative surgery and 50-year experience of application of polymer materials if the Clinic of General Surgery at the Siberian State Medical University (Tomsk ...
M. S. Deryugina, G. Ts. Dambayev
doaj   +1 more source

Remote near-field spectroscopy of vibrational strong coupling between organic molecules and phononic nanoresonators

open access: yesNature Communications, 2022
Vibrational strong coupling (VSC) promises ultrasensitive IR spectroscopy and modification of material properties. Here, nanoscale mapping of VSC between organic molecules and individual IR nanoresonators is achieved by remote near-field spectroscopy.
Irene Dolado   +15 more
doaj   +1 more source

IR spectroscopy of gas-phase C60− [PDF]

open access: yesPhysical Chemistry Chemical Physics, 2008
We present the IR spectrum of the gas-phase C60(-) anion. The C60(-) anions are mass-selected and trapped in an ion cyclotron mass spectrometer cell. The spectrum is obtained by recording the yield of electrons following infrared multiple photon absorption and subsequent electron detachment of the anions. Two bands are observed that correlate to two of
Kupser, P.   +5 more
openaire   +2 more sources

Low State, Phase-Resolved IR Spectroscopy of VV Puppis [PDF]

open access: yes, 2005
We present phase-resolved low resolution $JHK$ and higher resolution $K$-band spectroscopy of the polar VV Pup. All observations were obtained when VV Pup was in a low accretion state having a K magnitude near 15.
Allen D.   +14 more
core   +1 more source

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