Search for dissertations about: "Inhomogeneous Density"

Showing result 1 - 5 of 42 swedish dissertations containing the words Inhomogeneous Density.

  1. 1. A weighted correlation approach of the density functional theory for an inhomogeneous fluid at an interface

    Author : Zhao Wang; Longcheng Liu; Ivars Neretnieks; Małgorzata Borówko; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; inhomogeneous fluid; interface; density functional theory;

    Abstract : This doctoral thesis presents a newly developed density functional theory (DFT), i.e., the weighted correlation approach (WCA), to study the structural and thermodynamic properties of an inhomogeneous fluid at an interface. READ MORE

  2. 2. Inhomogeneous cosmologies with clustered dark energy or a local matter void

    Author : Michael Blomqvist; Edvard Mörtsell; Pedro Ferreira; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; dark energy; type Ia supernova; inhomogeneous; Cosmology; Kosmologi; Astronomy; astronomi;

    Abstract : In the standard model of cosmology, the universe is currently dominated by dark energy in the form of the cosmological constant that drives the expansion to accelerate. While the cosmological constant hypothesis is consistent with all current data, models with dynamical behaviour of dark energy are still allowed by observations. READ MORE

  3. 3. Essays on Distance Based (Non-Euclidean) Tests for Spatial Clustering in Inhomogeneous Populations : Adjusting for the Inhomogeneity through the Distance Used

    Author : Ulla Romild; Johan Lyhagen; Anders Ågren; Jack Cuzick; Uppsala universitet; []
    Keywords : Statistics; Clustering; Spatial Point Pattern; Inhomogeneous Density; Statistik;

    Abstract : This thesis consits of four papers dealing with distance based (non-Euclidean) tests for spatial clustering in inhomogeneous populations. The density adjusted distance (DAD), which considers the underlying density, is defined in the first paper. READ MORE

  4. 4. Theoretical prediction of properties of atomistic systems : Density functional theory and machine learning

    Author : Alexander Lindmaa; Rickard Armiento; Igor Abrikosov; Torbjörn Björkman; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : The prediction of ground state properties of atomistic systems is of vital importance in technological advances as well as in the physical sciences. Fundamentally, these predictions are based on a quantum-mechanical description of many-electron systems. READ MORE

  5. 5. Interatomic total-energy potentials for atomistic simulations of metallic systems

    Author : Jan Hartford; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; materials science; atom-in-jellium; atomistic approaches; DFT; GGA-PW91; density functional; effective medium theory; EMT; inhomogeneous electron gas; model potential; generalized gradient approximation;

    Abstract : .... READ MORE