Field mixing

Wilding N B and Bruce A D 1992 Density fluctuations and field mixing in the critical fluid J. Phys. Condens. Matter 4 3087-108... 

Trajectory models require spatiaUy and temporaUy resolved wind fields, mixing-height fields, deposition parameters, and data on the spatial distribution of emissions. Lagrangian trajectory models assume that vertical wind shear and horizontal diffusion are negligible. Other limitations of trajectory and Eulerian models have been discussed (30). 

Francis-Screw Field Mixed-Flow Field Axial-Flow Field... 

The Kolmogorov velocity field mixes packets of air with different passive scalars a passive scalar being one which does not exchange energy with the turbulent velocity flow. (Potential) temperature is such a passive scalar and the temperature fluctuations also follow the Kolmogorov law with a different proportionality constant... 

Gibson, C. H. (1968a). Fine structure of scalar fields mixed by turbulence. I. Zero-gradient points and minimal-gradient surfaces. The Physics of Fluids 11, 2305-2315. 

Air content of field mixes varies very little for mixing periods between 10 and 25 min and retempering with water to increase the slump from 50 to 100 mm has no significance on the air-void spacing factor, although it results in a small increase in the air content. 

You are interested in the near-field mixing of the total polychlorinated biphenols in problem 4, where the point source does not apply. Estimate the near-field concentrations of total polychlorinated biphenols, plot the isopleths of concentration and compare the results with those from your point source solution. 

A related approach to the calculation of the strong field mixing spectrum has been pursued by Gao et al.12 They start the calculation in the same way Reinhardt does, by computing the outgoing quantum mechanical wavefunction of the photoelectron produced at the origin by photoabsorption. At a distance 50 Oq... 

Fig. 8.10 Observed spectrum from the blue Hn = 2,n1 = 1, m = 0 Stark state in a field of 5714 V/cm with (a) jt polarization and (b) a polarization of the second laser. Note the progression from the extreme blue Stark states to the strong field mixing resonances (from...

Realizing that the strong field mixing resonances evolve from the extreme blue Stark states we can write their energies to first order in the electric field as... 

The photoexcitation of nonhydrogenic atoms is in many ways similar to the photoexcitation of H. For example, the strong field mixing resonances observed in Rb, Ba, and Na are well described by a hydrogenic theory.6,7,13 However, all features of the photoexcitation spectra of nonhydrogenic atoms are not equally well described by a hydrogenic theory, and we now describe the deviations. It is convenient to consider three spectral regions, below the classical ionization limit, above the classical ionization limit but below the zero field limit, and above the zero field limit. 

Main, J., Holle, A., Wiebusch, G., and Welge, K.H. (1987). Semiclassical quantization of three-dimensional quasi-Landau resonances under strong-field mixing, Z. Phys. D 6, 295-302. 

Another example of phase-insensitive control utilizes the lambda scheme depicted in Fig. 7. In this case a strong coupling (o)2) field mixes an excited state with... 

The simplest version of the atomic interferometer consists of two electrodes with the slits for passing the beam, separated with the variable gap L. For Lamb shift measurement corresponding interferometer is made of two two-electrode systems with longitudinal electric fields, mixing 2S and 2P-states. The systems were separated with a field-free gap of variable length L. This implies, that it is possible to write an exact expression for the probability W(L)e1,e2 of the yield I2P of 2P-atoms from the double system and determine, by processing the experimental dependence I2p(L), the Lamb shift value S. 

The electric field mixes states of opposite parity. Therefore, if the atom entering the interferometer is in a state with definite parity (e.g. in the 2s state), the probability of it emerging in the 2s or 2p state does not depend on the sign of the field. 

Pig. 1). The magnetic field mixes the m= 0 triplet and singlet states and, as a result, the m= 0 triplet decay rate is increased to... 

As with the Zeeman interaction discussed earlier, (1.43) is usually contracted to the space-fixed p = 0 component. An extremely important difference, however, is that in contrast to the nuclear spin Zeeman effect, the Stark effect in a 1Z state is second-order, which means that the electric field mixes different rotational levels. This aspect is thoroughly discussed in the second half of chapter 8 the second-order Stark effect is the engine of molecular beam electric resonance studies, and the spectra, such as that of CsF discussed earlier, are usually recorded in the presence of an applied electric field. 

B is the rotational constant, and M remains a good quantum number. The above 3x3 matrix is, of course, something of an approximation since, in reality, the Stark matrix is infinite and the accuracy with which the electric field mixing is calculated depends upon the number of rotational states included in the calculation. 

The origin of the electric dipole intensity for the AMj = 1 transitions studied merits further consideration. If the static magnetic field is 5 kG, the motional electric field has a magnitude of approximately 3 V cm-1 and is perpendicular to the applied magnetic field. This electric field mixes a state [./, Mj) with the states. J 1, Mj 1) and in order to obtain non-zero electric dipole transition moments for the transitions. /. Mj) o IJ, Mj 1), the oscillating electric field must be applied parallel to the static magnetic field. 

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