منابع مشابه
Deformation through Transformations
Constitutive stress-strain relations for transformational deformation are discussed. A crystal which can be in two possible phase states is considered. A phase transformation begins during the deformation after a certain amount of elastic strain. For each fixed level of strain an equilibrium polydomain microstructure is established which corresponds to a minimum in the free energy of the crysta...
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Affine transformations (dilatations and translations) are used to define a deformation of one-dimensional N = 2 supersymmetric quantum mechanics. Resulting physical systems do not have conserved charges and degeneracies in the spectra. Instead, superpartner Hamiltonians are q-isospectral, i.e. the spectrum of one can be obtained from another (with possible exception of the lowest level) by q2-f...
متن کاملDeformation invariant optical processors using coordinate transformations.
A general formulation of the properties, optical synthesis, and existence of space variant optical processors using coordinate transformations is provided. General expressions that the coordinate transformations must satisfy are described. Specific examples of the use of the methodology to determine the existence of and methods for the realization of space variant optical processors are include...
متن کاملSkeleton-Based Shape Deformation Using Simplex Transformations
This paper presents a novel skeleton-based method for deforming meshes, based on an approximate skeleton. The major difference from previous skeleton-based methods is that they used the skeleton to control movement of vertices, whereas we use it to control the simplices defining the model. This allows errors, that occur near joints in other methods, to be spread over the whole mesh, giving smoo...
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We study the action of time dependent canonical and coordinate transformations in phase space quantum mechanics. We extend the covariant formulation of the theory by providing a formalism that is fully invariant under both standard and time dependent coordinate transformations. This result considerably enlarges the set of possible phase space representations of quantum mechanics and makes it po...
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ژورنال
عنوان ژورنال: Le Journal de Physique IV
سال: 1996
ISSN: 1155-4339
DOI: 10.1051/jp4:1996102