Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 1057 for “"deformations"”.
-
Deformations of Cayley submanifolds
… minimal submanifolds. McLean studied the deformations of closed Cayley submanifolds. The deformation problem is elliptic but in general obstructed. We show that for a generic choice of Spin(7)-structure, there are no obstructions, and hence the moduli space is a finite-dimensional smooth …
-
Equivariant Deformations of Horospherical Surfaces
The classical Goursat transform for minimal surfaces is interpreted as conformal transformation of the Gauss map, allowing us to "bend" these surfaces for certain geometric purposes. A simple analogue of this deformation is defined for CMC1 surfaces which makes the Goursat transform equivariant …
-
Deformations of the pneumatic tyre
… The model will permit the investigations of tyre deformations produced by arbitrary external loading, and will enable estimates to be made of the distributions of applied and reactive forces. The principle of Finite Elements is used to idealise the composite tyre structure, each element consisting …
-
Characterization of neuropathological shape deformations
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1995.
-
Deformations of Piezoceramic-Composite Actuators
… models are easily modified to account for the deformations induced by actuation of the piezoceramic. The results indicate that for a given set of material properties, rectangular RAINBOW can have critical values of sidelength-to-thickness ratio (Lx/H or Ly/H) below which RAINBOW exhibits …
-
Deformations of Unsymmetric Composite Panels
This work discusses the deformations of various unsymmetric composite panels due to thermal and mechanical loads. Chapter 2 focuses on the warpage of large unsymmetric curved composite panels due manufacturing anomalies. These panels are subjected to a temperature change of -280°F to simulate the …
-
Nilmanifolds: complex structures, geometry and deformations
… and prove that in the generic case small deformations of such structures are again left-invariant. The relation between nilmanifolds and iterated principal holomorphic torus bundles is clarified and we give criteria under which deformations in the large are again of such type. As an …
-
On deformations of compressible hyperelastic material
We consider the character of several finite deformations of compressible isotropic, nonlinear hyperelastic materials, specifically azimuthal shear of a thick-walled circular cylindrical tube, the bending deformation of a rectangular block and axial shear of a thick-walled circular cylindrical tube. …
-
Deformations of Three-Dimensional Galois Representations
Having explicitly calculated universal deformations, the next logical question is whether we can calculate deformations with local restrictions. In fact, the ordinary deformation problem is representable, and we explain how to calculate the universal ordinary deformation. We proceed to perform this …
-
Analysis of Finite Deformations of Membranes
Made available in DSpace on 2014-12-14T14:42:17Z (GMT). No. of bitstreams: 1 7913580.pdf: 2852862 bytes, checksum: 4a28114bbf2c82dddda990ff9fc294cf (MD5) Previous issue date: 1978
-
Contractions and Deformations of Lie Algebras
Made available in DSpace on 2014-12-11T18:23:36Z (GMT). No. of bitstreams: 1 7114707.pdf: 2619429 bytes, checksum: ffcd337566f7243eeb95fe37174d9958 (MD5) Previous issue date: 1970
-
Investigations of threshold effects in soil deformations
Some of the methods used in deformation analyses are briefly reviewed. It is observed that often there is a large difference between data quoted from laboratory tests and that obtained from the back analysis of either field tests or back analysed structures. Some of the factors which affect soil …
-
Deformations of homotopy theories via algebraic theories
… of an algebraic theory as a tool for producing deformations of homotopy theories. From this, we extract a framework for constructing and reasoning with obstruction theories and spectral sequences that compute homotopical data starting with purely algebraic data. We investigate the algebra …
-
Analyzing and synthesizing deformations in image datasets
… warping, are concerned with measuring spatial deformations between images. Traditional algorithms for these applications often rely on solving an optimization problem for each test input. Some of these methods produce poor results on complex problems. For example, image warping methods struggle …
-
SMA-Induced Deformations In general Unsymmetric Laminates
… is a model which can predict SMA-induced deformations in general unsymmetric laminates and, particularly, the occurrence of the snap through. First, a methodology is developed to predict the deformations of flat general unsymmetric epoxy-matrix composite laminates as they are cooled from …
-
Ex Vivo Deformations of the Uterosacral Ligaments
… coherence tomography (OCT) to quantify the deformations of the USLs, both in-plane and out-of-plane. Using virgin swine as an animal model, the USLs were found to deform significantly less in their main direction (MD) of {emph{in vivo}} loading than in the direction perpendicular to it (PD) …
-
Surface Deformations of Magnetic Continua in Homogeneous Fields
In this thesis, experiments with magnetic liquids and gels are presented. Ferrofluids are synthetically created suspensions of magnetic nanoparticles in a carrier liquid. By adding a gelator, such a ferrofluid can be turned into a ferrogel. The magnetic properties of these substances are similar to …
-
Vacua of Marginal Deformations in Gauged Supergravity Models
L'abstract è presente nell'allegato / the abstract is in the attachment
Page 1 of 53