order parameter


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order parameter

[′ȯrd·ər pə‚ram·əd·ər]
(statistical mechanics)
A measure of the degree of ordering of a system which has value zero above the temperature of a phase transition and acquires some nonzero value below the transition temperature.
References in periodicals archive ?
Differs from business type MF primitive, adaptable type MF primitive cannot realize overall coordination under uncertain environment; therefore, it would not lead to the formation of ordered MF order parameter.
In contrast to the orientation number, the order parameter is defined with respect to the average fibre orientation, but each one takes only one angle into account.
The foremost difference from physics stems from the commuted roles of the variables: order in the complex system appears as an order parameter in the functional space, contrary to the physical case where order is configurational.
The scalar order parameter S is a measure of the degree of order and the biaxiality parameter s is a measure of the deviation of the orientation distribution from rotation symmetry.
Quantitatively, this is indicated by a reduction in the order parameter after relaxation, to [P.
By assuming that the transport field varies on time-scales much longer than those of the phase order parameter, we simply treat the external sources as local solidification conditions.
5) The Contractor is obliged to use biodegradable oil for the lubrication of chain saws operated devices to the completion of the order parameter of biodegradation not worse than 89%.
The order parameter or orientation function (S) (1517) defined as the degree of alignment of liquid crystal molecules with a preferred direction, was determined from the infrared dichroic ratio, R = [A.
For the offer will be considered equivalent to this offer, which will include the subject of the order parameter at least the same or more favorable
For the offer will be considered equivalent to this offer , which will include the subject of the order parameter at least the same or more favorable in relation to the parameters that have a range specified by the Purchaser in the detailed description of the object of the contract (see point .