The hindered internal rotations around the partial carbon-carbon double bond, nitrogen-carbon and carbon-carbon single bonds within the 2-(2-chloro-phenothiazine-l-yl)-3-(triphenylphosphoranylidene) butandioate has been experimentally studied by the dynamic H NMR spectroscopic in variable temperatures. The activation (∆H, ∆S, ∆G) and kinetic (kc, Ea) parameters have been calculated in a series ...

An analysis of the kinetic coefficient of crystal growth U(kin), recently proposed by Ediger et al. [J. Chem. Phys. 128, 034709 (2008)], indicates that the Stokes-Einstein/Eyring (SE/E) equation does not describe the diffusion process controlling crystal growth rates in fragile glass-forming liquids. U(kin) was defined using the normal growth model and tested for crystal data for inorganic and ...

The purpose of this study is to establish Liouville-type results for a three-dimensional incompressible, unsteady flow described by the Eyring–Powell fluid equations. studied in plane ?p while it moves along z-axis. Therefore main functions analyze are given u(x,y,z,t) and v(x,y,z,t), belonging ?p. obtained globally bounded initial data as well their corresponding derivatives, variations veloci...

We consider two-dimensional stochastic differential equations, describing the motion of a slowly and periodically forced overdamped particle in double-well potential, subjected to weak additive noise. give sharp asymptotics Eyring-Kramers type for expected transition time from one potential well other one. Our results cover range forcing frequencies that are large with respect maximal rate betw...

we have developed a three level implicit method for solution of the helmholtz equation. using the cubic spline in space and nite dierence in time directions. the approach has been modi ed to drive numerov type nite dierence method. the method yield the tri- diagonal linear system of algebraic equations which can be solved by using a tri-diagonal solver. stability and error estimation of the...

This paper proposes a modified boundary condition to improve the room-acoustic prediction accuracy of a diffusion equation model. Previous boundary conditions for the diffusion equation model have certain limitations which restrict its application to a certain number of room types. The boundary condition employing the Sabine absorption coefficient [V. Valeau et al., J. Acoust. Soc. Am. 119, 150...

ABSTRACT The densities and viscosities of dodecyltrimethylammonium bromide (DTAB), glycine, and rac-alanine in water and DTAB in glycine/alanine aqueous solutions have been determined at 288.15, 296.15, 304.15, 312.15, and 320.15 K. The apparent molar volumes (φv) were obtained from these density data. The limiting apparent molar volumes (φv0) and experimental slopes (Sv) were derived from the ...

AUBRITE Laurence A.J. Garvie, Soumya Ray, Meenakshi Wadhwa, Axel Wittmann, and Kenneth Domanik Center for Meteorite Studies, School of Earth and Space Exploration, Arizona State University, 781 East Terrace Rd., Tempe, AZ 85287-6004 ([email protected]). LeRoy Eyring Center for Solid State Science, Arizona State University, Tempe, AZ 85287-1704. Lunar and Planetary Laboratory, University of Arizon...