Sökning: "DVM"
Visar resultat 1 - 5 av 9 avhandlingar innehållade ordet DVM.
1. Diel vertical migration in marine dinoflagellates
Sammanfattning : Increasing precipitation and surface water temperature due to global change may strengthen stratification in coastal regions, which could influence the behavior of dinoflagellate diel vertical migration (DVM). DVM is a behavioral mechanism by which dinoflagellates can access photosynthetically active radiation near the surface, and nutrients at depth. LÄS MER
2. Ecosystems in the Anthropocene: the role of cropland management for carbon and nitrogen cycle processes
Sammanfattning : Through deforestation and conversion of natural ecosystems to croplands and pastures, have humans released vast amounts of carbon (C) dioxide (CO2) into the atmosphere. Roughly one third of the cumulative anthropogenic emissions until today stem from these practices, the remainder being mostly due to fossil fuel combustion. LÄS MER
3. Discrete Velocity Models and Half-Space Problems
Sammanfattning : We study some questions related to discrete velocity models (DVMs) of the Boltzmann equation. In the case of plane stationary problems the typical DVM reduces to a dynamical system (system of ODEs). Properties of such systems are studied in this paper in the most general case. LÄS MER
4. On Half-Space and Shock-Wave Problems for Discrete Velocity Models of the Boltzmann Equation
Sammanfattning : We study some questions related to general discrete velocity (with arbitrarily number of velocities) models (DVMs) of the Boltzmann equation. In the case of plane stationary problems the typical DVM reduces to a dynamical system (system of ODEs). Properties of such systems are studied in the most general case. LÄS MER
5. Calculations of electronic structures with applications to transport properties and to low energy electron diffraction
Sammanfattning : The content of this thesis can be divided into two topics. The first topic is the calculation of the electronic structure of solids and clusters within the local density approximation. LÄS MER