Nuclear Model


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Nuclear Model

 

(also model of the nucleus), an approximate method of describing certain nuclear properties that is based on the identification of the nucleus with some other physical system whose properties are either well known or amenable to a relatively simple theoretical analysis. Examples of nuclear models include the following: the degenerate Fermi gas model; the liquid-drop model; the rotator, or top, model; and the shell model. (See.)

References in periodicals archive ?
Rutherford within the framework of classical mechanics and electrodynamics planetary nuclear model of the atom, containing in the central part of the positively charged nucleus and around the periphery of a negatively charged electron shell of a sphere-like, had a significant and insurmountable flaw.
The nuclear model hasn't changed significantly, but the model for interpersonal non-verbal communication within families appears to have shifted dramatically.
No ten essays could describe every type of self-understood "family," but the first section of the collection does a remarkably good job of presenting important exceptions to the traditional nuclear model.
Cherlin maintains, in fact, that it is the dogged allegiance of less-educated whites to the nuclear model that jeopardizes their children's chances to thrive.
ud] (the u and d quark mixing matrix) independently of the nuclear model.
His queer depiction of the black family functions to dispel myths of its pathology by refusing to entertain its departure from a nuclear model.
This led to the formulation of the nuclear model of the atom, a fundamental advance which should have justified the award of a Nobel prize in Physics.
In other words, just because the nuclear model of a family has the easiest time meeting some basic needs that children may have, it does not necessitate that such a model should be prescriptive in any way with regard to the family relationships which people make by choice and which the government may regulate, such as adoption.
In addition, ENEC has made notable achievements in the energy field as the UAE's peaceful nuclear model is internationally described as the "golden standard" due to the government's insistence and commitment in implementing safety and security standards in the country.
More particularly, the sweeping claim for this book is that it disproves the generalization propounded by Herbert Gutman and others that the typical Southern slave family conformed to the same nuclear model as free white families, with durable marriages, and parents of both sexes exerting meaningful influence on the development of slave children.
He covers phase states of matter and their classification, equations of state of gases and liquids, quantum mechanical models of a solid, plasma thermodynamics, Monte Carlo and molecular dynamics methods, the statistical substance model, the density functional method, semi-empirical equations of state, relativistic plasma: wide-range description, nuclear transformations under strong compression, quark-gluon plasma and strange matter, and semi-empiric nuclear models.
The experiment was a "tour de force," says Michael Pearson of the University of Montreal, adding that the results should help discriminate between different nuclear models.

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