Российский фонд
фундаментальных
исследований

Физический факультет
МГУ им. М.В.Ломоносова
 

K

Kaatz U.

 

Hushcha T., Kaatz U., Peytcheva A. «Acoustic spectroscopy in protein solutions: human serum albumin» КОНСОНАНС-2005. Акустический симпозиум (27–29 сентября 2005 г.), с. 171-176 (2005)

This report presents the broadband acoustic study of aqueous solutions of human serum albumin (HSA), the most abundant protein in the circulatory system. Complicated attenuation spectra indicating the presence of relaxation processes in the whole frequency range extending from 200 kHz to 2 GHz have been found. Different relaxation functions were applied to analytically represent the spectra. Most consistent for the whole dataset at different pH, temperatures and concentrations was the function, consisting of the asymptotic high frequency attenuation and three relaxation contributions. The first of those located at 300 kHz was attributed to cooperative segmental motions of the protein chain. The second one found in the range of 1–5 MHz seems to be due to proton transfer reactions of the protein side-chain groups. And the third one with a maximum disposed between about 400 MHz and 4 GHz was interpreted in terms of solute-solvent interactions reflecting various hydration layers of HSA molecules

КОНСОНАНС-2005. Акустический симпозиум (27–29 сентября 2005 г.), с. 171-176 (2005) | Рубрика: 15.01

Khasanshin T.S.

 

Khasanshin T.S. «Sound velocity in liquid primary normal alcohols» Теплофизика высоких температур, 29, № 4, с. 710-716 (1991)

Теплофизика высоких температур, 29, № 4, с. 710-716 (1991) | Рубрика: 06.02

Kizilova N.N.

 

Kizilova N.N., Klepikov V.F., Hamadiche M. «Stabilization of the fluid flows in the multilayered tubes from viscoelastic materials» КОНСОНАНС-2009. Акустический симпозиум (29 сентября–01 октября 2009 г.), с. 201-206 (2009)

Stability of the incompressible fluid flow through a thick-walled multilayered anisotropic viscoelastic tube is studied. Both steady laminar and turbulent basic flows are considered. The temporal and spatial eigenvalues of the system are found. Influence of the material parameters of the layers and the Reynolds number on the spatial and temporal amplification rate of the most unstable mode is investigated. It is shown that the absolute instability of the system can be converted into a convective instability, and in some cases the system can be stabilized by an appropriate choice of the rheological parameters. The results can be applied to the blood flow in vessels and fluid flows in compliant tubes of biomedical and technical devices, for damping the undesirable solid vibrations and noise shielding.

КОНСОНАНС-2009. Акустический симпозиум (29 сентября–01 октября 2009 г.), с. 201-206 (2009) | Рубрика: 04.09

Klepikov V.F.

 

Kizilova N.N., Klepikov V.F., Hamadiche M. «Stabilization of the fluid flows in the multilayered tubes from viscoelastic materials» КОНСОНАНС-2009. Акустический симпозиум (29 сентября–01 октября 2009 г.), с. 201-206 (2009)

Stability of the incompressible fluid flow through a thick-walled multilayered anisotropic viscoelastic tube is studied. Both steady laminar and turbulent basic flows are considered. The temporal and spatial eigenvalues of the system are found. Influence of the material parameters of the layers and the Reynolds number on the spatial and temporal amplification rate of the most unstable mode is investigated. It is shown that the absolute instability of the system can be converted into a convective instability, and in some cases the system can be stabilized by an appropriate choice of the rheological parameters. The results can be applied to the blood flow in vessels and fluid flows in compliant tubes of biomedical and technical devices, for damping the undesirable solid vibrations and noise shielding.

КОНСОНАНС-2009. Акустический симпозиум (29 сентября–01 октября 2009 г.), с. 201-206 (2009) | Рубрика: 04.09

Komov V.I.

 

Komov V.I., Rutkevich I.M. «Excitation of nonlinear acoustic vibrations in moving nonuniform plasma. Equations for interacting wave amplitudes» Теплофизика высоких температур, 29, № 1, с. 35-44 (1991)

Теплофизика высоких температур, 29, № 1, с. 35-44 (1991) | Рубрика: 06.08