Sökning: "describing function analysis"
Visar resultat 1 - 5 av 130 avhandlingar innehållade orden describing function analysis.
1. Homogenization of Some Selected Elliptic and Parabolic Problems Employing Suitable Generalized Modes of Two-Scale Convergence
Sammanfattning : The present thesis is devoted to the homogenization of certain elliptic and parabolic partial differential equations by means of appropriate generalizations of the notion of two-scale convergence. Since homogenization is defined in terms of H-convergence, we desire to find the H-limits of sequences of periodic monotone parabolic operators with two spatial scales and an arbitrary number of temporal scales and the H-limits of sequences of two-dimensional possibly non-periodic linear elliptic operators by utilizing the theories for evolution-multiscale convergence and λ-scale convergence, respectively, which are generalizations of the classical two-scale convergence mode and custom-made to treat homogenization problems of the prescribed kinds. LÄS MER
2. Analysis of Dynamics of the Tippe Top
Sammanfattning : The Tippe Top is a toy that has the form of a truncated sphere with a small peg. When spun on its spherical part on a flat supporting surface it will start to turn upside down to spin on its peg. LÄS MER
3. Konstruktioner som fungerar : En studie av teknikkunnande i de tidiga skolåren
Sammanfattning : The aim of this thesis is to explore the meaning of technical knowing in primary technology education. This is done by identifying and describing ways of knowing in relation to specific content (so-called objects of learning) of the school subject of technology. LÄS MER
4. Biomechanical methods and error analysis related to chronic musculoskeletal pain
Sammanfattning : Background Spinal pain is one of humanity’s most frequent complaints with high costs for the individual and society, and is commonly related to spinal disorders. There are many origins behind these disorders e.g., trauma, disc hernia or of other organic origins. LÄS MER
5. Clarkson type inequalities and geometric properties of banach spaces
Sammanfattning : In this thesis Clarkson's inequalities and their generalizations are the main tools. The technique that can be used to prove Clarkson type inequalities in more dimensions is shown. We also establish Clarkson type inequalities in general Banach spaces and point out the connections between Clarkson's inequalities and the concept of type and cotype. LÄS MER