Source: The Journal of physical chemistry v. The spectra have been evaluated in terms of suitable relaxation functions. In addition to a frequency-independent asymptotic high-frequency term, all spectra reveal a critical term and a Debye-type relaxation term with relaxation time around 0. The former is evaluated in the light of the Bhattacharjee—Ferrell dynamic scaling theory.
It is assigned to the critical domain structure fluctuations of the membranes.
Rate exchange rather than relaxation controls structural recovery
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NMR Methods to Study Dynamic Allostery
Ferrell, Decoupled-mode dynamical scaling theory of the binary-liquid phase transition, Phys. Kawasaki, Kinetic equations and time correlation functions of critical fluctuations, Ann. Alekhin and O. Bilous, The phenomenological approach to estimating critical indices of critical fluid, High Temp. Bhattacharjee and R.
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Ferrell, Dynamic scaling theory for the critical ultrasonic attenuation in a binary liquid, Phys. A 24, [DOI: Bhattacharjee, S. Mirzaev, and U. Kaatze, Does the viscosity exponent derive from ultrasonic attenuation spectra? Schrader, and U. Kaatze, Zwitterion headgroup orientation correlation and mobility and the domain structure of membranes, J. B , [DOI: Folk and G. Moser, Frequency-dependent shear viscosity, sound velocity, and sound attenuation near the critical point in liquids.
Comparison with experiment, Phys.
E 57, [DOI: Onuki, Bulk viscosity near the critical point, J. Bogolyubov Institute for Theoretical Physics. Skip to main content Skip to main navigation menu Skip to site footer. Keywords: ultrasound velocity, ultrasound absorption, critical stratification point, binary solution, concentration fluctuations, relaxation time.
Abstract The propagation velocity and the absorption coefficient of ultrasound in a frequency range of 5— MHz in a n-pentanol—nitromethane solution in a vicinity of its critical stratification point from the homogeneous state side have been studied. References A.
Structure, Fluctuation, and Relaxation in Solutions
Press, Cambridge, Bulavin, O. Vasylkevych et al. How to Cite. Bulavin, L. Ukrainian Journal of Physics , 61 10 ,