Sökning: "corotation"

Hittade 4 avhandlingar innehållade ordet corotation.

1. 1. Finite Element Methods for Thin Structures with Applications in Solid Mechanics

   Författare :Karl Larsson; Mats G Larson; Garth N Wells; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; a priori error estimation; finite element method; discontinuous Galerkin; corotation; Kirchhoff-Love plate; curved beam; biharmonic equation; Mathematics; matematik;

   Sammanfattning : Thin and slender structures are widely occurring both in nature and in human creations. Clever geometries of thin structures can produce strong constructions while requiring a minimal amount of material. LÄS MER

3. 2. Finite element methods for threads and plates with real-time applications

   Författare :Karl Larsson; Mats G. Larson; Peter Hansbo; Umeå universitet; []
   Nyckelord :finite element method; real-time simulation; absolute nodal continuous formulation; large deformation; corotation; adaptive resolution; Kirchhoff-Love plate; reconstruction; discontinuous Galerkin; a priori error estimation; Mathematics; matematik;

   Sammanfattning : Thin and slender structures are widely occurring both in nature and in human creations. Clever geometries of thin structures can produce strong constructions while using a minimal amount of material. LÄS MER

4. 3. On the structure and dynamics of Saturn's inner plasma disk

   Författare :Mika Holmberg; Jan-Erik Wahlund; Jean-Pierre Lebreton; Uppsala universitet; []
   Nyckelord :Saturn; E-ring; plasma disk; Space and Plasma Physics; Rymd- och plasmafysik;

   Sammanfattning : This licentiate thesis presents our investigation of Saturn's inner plasma disk. The thesis gives an overview of the Cassini-Huygens project, what a plasma is and how we use the Langmuir probe to investigate it, various difficulties related to the measurements, the structure of the magnetosphere of Saturn, with special focus on the inner magnetosphere and the region around the Saturnian moon Enceladus. LÄS MER

5. 4. A study of the kinematics and nuclear structure of the barred spiral galaxies NGC 1365 and NGC 1512 and of the nuclear jet in NGC 3309

   Författare :Steven Jörsäter; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : This thesis, which consists of 7 articles and a summary, deals with different aspects of the three galaxies NGC 1365, NGC 1512 and NGC 3309. Article 1 is a study of the nuclear spiral in the barred spiral galaxy NGC 1512. The velocities derived from optical spectra indicate an expansion of this spiral. LÄS MER