Order Parameter


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Order Parameter

In a nonlinear dynamic system, a variable-acting link a macrovariable, or combination of variables-that summarizes the individual variables that can affect a system. In a controlled experiment, involving thermal convection, for example, temperature can be a control parameter; in a large complex system, temperature can be an order parameter, because it summarizes the effect of the sun, air pressure, and other atmospheric variables. See: Control parameter.
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Based on the eigenvalues of the second-order alignment tensor it is often useful to introduce an orientational order parameter S [member of] [-1/2, 1], which accounts for the amount of anisotropy.
Study results of microviscosity of erythrocytes membranes shown in Table 2 revealed different value order parameter in all clinical forms as compared with data of healthy children (P<0.
OIR is termed as multi-PMF system order parameter (Haken, 1983).
For each set F the usual order parameter will be replaced by y where c = [[gamma].
A true ferromagnetic peak would be observed at Q = 0, but the competition between the superconducting order parameter and the ferromagnetic order gives rise to a long wavelength oscillatory magnetic state as shown in the figure.
B](x, t) be the order parameter which is defined as the difference between the local volume fractions of A and B monomers at point x and time t.
The growth rates were calculated from the order parameter extrapolation to the completion of the crystalline layer.
81818, the spherical and the prolate deformed minima are degenerate and this condition defines precisely the critical point of the first order phase transition where the order parameter is the deformation [beta].
US) and Varlamov (Consiglio Nazionale di Ricerca, Italy) provide a review of the theory, utilizing both the Feynmann diagrammatic technique and the method of functional (continual) integration over the order parameter according to their particular advantages and disadvantages.
In the phase field method, however, the liquid-solid transition is described by an order parameter that determines, at each location in the simulated alloy, whether the alloy is in the liquid or solid phase.
The second theme is to develop the mathematical theory of the Landau - de Gennes theory of liquid crystals, in which the distribution of molecular orientations is described by a matrix order parameter.