Sökning: "average"

Visar resultat 6 - 10 av 2917 avhandlingar innehållade ordet average.

  1. 6. Theoretical and experimental studies of surface and interfacial phenomena involving steel surfaces

    Författare :Weimin Cao; Seshadri Seetharaman; Oleg Ostrovski; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Sulfur; Oxygen; Adsorption; Iron surface; ab initio calculations; Adsorption energy; Work function; Difference charge density; Magnetic properties; Thermodynamic stability; Average velocity; Monte Carlo simulation; X-ray sessile drop method; Mass transfer; Interfacial velocity; Metallurgical process engineering; Metallurgisk processteknik;

    Sammanfattning : The present work was initiated to investigate the surface- and interfacial phenomena for iron and slag/iron systems. The aim was to understand the mechanism of the effect of surface active elements on surface and interfacial properties. LÄS MER

  3. 7. The use of average values of time in road pricing : A note on common misconception

    Författare :Jonas Eliasson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : .... LÄS MER

  4. 8. Valuing Path-Dependent Options using the Finite Element Method, Duality Techniques, and Model Reduction

    Författare :Georgios Foufas; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; finite element method; Galerkin; duality; a posteriori error estimation; adaptivity; option pricing; Greeks; Brownian motion; European option; barrier option; lookback option; Asian option; average option; POD; model reduction; balanced truncation; lookback option;

    Sammanfattning : In this thesis we develop an adaptive finite element method for pricing of several path-dependent options including barrier options, lookback options, and Asian options. The options are priced using the Black-Scholes PDE-model, and the resulting PDE:s are of parabolic type in one spatial dimension with different boundary conditions and jump conditions at monitoring dates. LÄS MER

  5. 9. Uncertainty intervals and sensitivity analysis for missing data

    Författare :Minna Genbäck; Xavier de Luna; Elena Stanghellini; Arvid Sjölander; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; missing data; missing not at random; non-ignorable; set identification; uncertainty intervals; sensitivity analysis; self reported health; average causal effect; average causal effect on the treated; mixed-effects models; Statistics; statistik;

    Sammanfattning : In this thesis we develop methods for dealing with missing data in a univariate response variable when estimating regression parameters. Missing outcome data is a problem in a number of applications, one of which is follow-up studies. LÄS MER

  7. 10. Steam Drying of Porous Media

    Författare :Jörgen Hager; Avdelningen för kemiteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; transport coefficients; experimental; heat and mass transfer; sorption isobar; packed bed; porous particles; hybrid model; volume average; porous media; superheated steam; steam drying; Chemical technology and engineering; Kemiteknik och kemisk teknologi;

    Sammanfattning : The present study concerns heat and mass transfer in porous media dried by superheated steam. Specifically, the steam drying process of a packed bed of porous particles was studied in order to obtain design data for a band drier. LÄS MER