Sökning: "bounded height"
Visar resultat 1 - 5 av 14 avhandlingar innehållade orden bounded height.
1. The density of rational points and invariants of genus one curves
Sammanfattning : The present thesis contains three papers dealing with two arithmetic problems on curves of genus one, which are closely related to elliptic curves. The first problem is to study the density of rational points presented in Papers I and II. LÄS MER
2. Counting Rational Points on Curves and Surfaces
Sammanfattning : .... LÄS MER
3. Particle-laden Turbulent Wall-bounded Flows in Moderately Complex Geometries
Sammanfattning : Wall-bounded turbulent dispersed multiphase flows occur in a variety of industrial, biological and environmental applications. The complex nature of the carrier and the particulate phase is elevated to a higher level when introducing geometrical complexities such as curved walls. LÄS MER
4. Spectral-element simulations of turbulent wall-bounded flows including transition and separation
Sammanfattning : The spectral-element method (SEM) is used to study wall-bounded turbulent flowsin moderately complex geometries. The first part of the thesis is devoted to simulations of canonical flow cases, such as temporal K-type transitionand turbulent channel flow, to investigate general resolution requirements and computational efficiency of the numerical code nek5000. LÄS MER
5. Lubricating grease Experiments and modeling of wall-bounded- and free-surface flows
Sammanfattning : Lubricating grease is commonly applied to lubricate e.g. rolling bearings, sealsand gears. Grease has some clear advantages over lubricating oil: it is a semisolidmaterial, which prevents it from flowing/ leaking out from the bearingsystem and gives it sealing properties, and it also protects the system fromcontaminants and corrosion. LÄS MER