Results 21 to 30 of about 3,260,990 (309)
Equilibria and Absorption Spectra of Tryptophanase
Journal of Biological Chemistry, 1991 Tryptophanase (tryptophan: indole-lyase) from Escherichia coli has been isolated in the holoenzyme form and its absorption spectra and acid-base chemistry have been reevaluated. Apoenzyme has been prepared by dialysis against sodium phosphate and L-alanine and molar absorptivities of the coenzyme bands have been estimated by readdition of pyridoxal 5 ...
C M, Metzler, R, Viswanath, D E, Metzler
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A broadband optical cavity spectrometer for measuring weak near-ultraviolet absorption spectra of gases [PDF]
Atmospheric Measurement Techniques, 2011 Accurate absorption spectra of gases in the near–ultraviolet (300 to 400 nm) are essential in atmospheric observations and laboratory studies. This paper describes a novel incoherent broadband cavity-enhanced absorption spectroscopy (IBBCEAS) instrument ...
J. Chen, D. S. Venables
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Dangerous Bonds Individual of Hydrogenated Amorphous Silicon and Defect Absorption Spectra
East European Journal of Physics, 2023 In this work, defect absorption spectra for defects characteristic of hydrogenated amorphous silicon are theoretically studied. It is shown that in order to determine defect absorption spectra using the Kubo-Greenwood formula, the indefinite integral in
Rustamjon G. Ikramov +5 more
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Parametric Recovery of Line‐of‐Sight Velocity Distributions from Absorption‐Line Spectra of Galaxies via Penalized Likelihood [PDF]
, 2003 We investigate the accuracy of the parametric recovery of the line‐of‐sight velocity distribution (LOSVD) of the stars in a galaxy while working in pixel space.
M. Cappellari, E. Emsellem
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Journal of Applied Science and Engineering, 2023 The region of exponential absorption of the spectra of amorphous semiconductors is theoretically investigated using the Davis-Mott approximation method from the Kubo-Greenwood formula.
R.G. Ikramov +4 more
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Effect of doping on the optical properties of lanthanum-gallium tantalate [PDF]
Modern Electronic Materials, 2023 Nominally pure lanthanum-gallium tantalate La3Ga5.5Ta0.5O14 crystals doped with aluminum, silicon and gallium oxide to above stoichiometric content have been grown by the Czochralski technique in iridium crucibles in argon and in agron with addition of ...
Evgeniya V. Zabelina +2 more
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Optical absorption spectra of bipolarons [PDF]
Physical Review B, 2001 The absorption of large bipolarons is investigated using the path-integral method. The response of a bipolaron to an external electromagnetic field is derived in the framework of the memory-function approach. The bipolaron optical absorption spectrum consists of a series of relatively narrow peaks.
Devreese, J.T. +2 more
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Identification of melamine in milk using mid-infrared spectrometry [PDF]
BIO Web of ConferencesThe paper presents a study of the infrared spectra of milk with melamine in the middle spectral range. The presence of absorption bands in the infrared spectra of a standard sample of melamine, milk without it and with its addition in different ...
Kalyuzhnaya T. V., Drozd A. V.
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Creating semiconductor metafilms with designer absorption spectra
Nature Communications, 2015 The optical properties of semiconductors are typically considered intrinsic and fixed. Here we leverage the rapid developments in the field of optical metamaterials to create ultrathin semiconductor metafilms with designer absorption spectra. We show how
S. Kim +3 more
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QM/MM Benchmarking of Cyanobacteriochrome Slr1393g3 Absorption Spectra
Molecules, 2019 Cyanobacteriochromes are compact and spectrally diverse photoreceptor proteins that are promising candidates for biotechnological applications. Computational studies can contribute to an understanding at a molecular level of their wide spectral tuning ...
Christian Wiebeler, Igor Schapiro
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