Sökning: "the Langevin technique"

Hittade 5 avhandlingar innehållade orden the Langevin technique.

1. 1. The Diversity and Unity of Reactor Noise Theory

   Författare :Zhifeng Kuang; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; neutron fluctuations; master equations; correlations; stochastic processes; the Langevin technique; power spectra; reactor noise; covariances;

   Sammanfattning : The study of reactor noise theory concerns questions about cause and effect relationships, and the utilisation of random noise in nuclear reactor systems. The diversity of reactor noise theory arises from the variety of noise sources, the various mathematical treatments applied and the various practical purposes. LÄS MER

3. 2. Computational Analysis of Carbohydrates : Dynamical Properties and Interactions

   Författare :Robert Eklund; Göran Widmalm; Sören B. Engelsen; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Carbohydrate; DFT; ab initio; docking calculations; Molecular dynamics; Langevin Dynaimcs; structure analysis; carbohydrate-protein interaction; Chemical shift calculations; Spin spin coupling constants.; Organic chemistry; Organisk kemi;

   Sammanfattning : In this thesis a computational complement to experimental observables will be presented. Computational tools such as molecular dynamics and quantum chemical tools will be used to aid in the interpretation of experimentally (NMR) obtained structural data. LÄS MER

4. 3. Hindered diffusion of nanoparticles

   Författare :Ananda Subramani Kannan; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Brownian motion; Hydrodynamic interactions; Multiphase DNS; Mobility; Langevin-immersed boundary method; Colloids; Aerosols; Nanoscale and Rarefied gas.;

   Sammanfattning : Brownian theory provides us with a powerful tool which can be used to delve into a microscopic world of molecules, cells and nanoparticles, that was originally presumed to be beyond our reach. Consequently, modeling the inherent dynamics of a system through a Brownian transport equation is of relevance to several real-word problems that involve nanoparticles including, the transport and mitigation of particulate matter (PM) generated though fossil fuel combustion and nanocarrier mediated drug delivery. LÄS MER

5. 4. An Information-Theoretic Approach to Generalization Theory

   Författare :Borja Rodríguez Gálvez; Mikael Skoglund; Ragnar Thobaben; Benjamin Guedj; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Generalization; Information-Theoretic Bounds; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : In this thesis, we investigate the in-distribution generalization of machine learning algorithms, focusing on establishing rigorous upper bounds on the generalization error. We depart from traditional complexity-based approaches by introducing and analyzing information-theoretic bounds that quantify the dependence between a learning algorithm and the training data. LÄS MER

7. 5. Numerical modelling of particulate matter deposition in exhaust gas after-treatment systems

   Författare :Ananda Subramani Kannan; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Immersed boundary method; DNS; Brownian motion; PM transformation and Rarefied gas; Nanoscales;

   Sammanfattning : As urban air quality declines, the corresponding levels of particulate matter (PM), that include pollutants such as sulfates, nitrates and black carbon, rise posing the greatest risks to human health. Hence, the control of these particulate emissions constitutes a major global challenge that commands serious attention. LÄS MER