Sökning: "Transition models"

Visar resultat 1 - 5 av 587 avhandlingar innehållade orden Transition models.

  1. 1. Nonlinear dynamics and smooth transition models

    Författare :Andrés González Gómez; Handelshögskolan i Stockholm; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : During the last few years nonlinear models have been a very active area of econometric research: new models have been introduced and existing ones generalized. To a large extent, these developments have concerned models in which the conditional moments are regime-dependent. LÄS MER

  3. 2. Correlated materials : models and methods

    Författare :Hugo Strand; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; correlated electrons; Hubbard model; multiband Hubbard model; dynamical mean field theory; exact diagonalization; Landau theory; Mott metal-insulator transition; Gutzwiller method; many-body point group symmetry; ironchalcogenides; Kanamori interaction; Slater-Condon interaction;

    Sammanfattning : This thesis encompass a series of studies on methods and models for electron systems with local interactions, relevant for correlated materials. The first study focus on the canonical model for local correlation, the Hubbard model. LÄS MER

  4. 3. Relationships between models used for teaching chemistry and those expressed by students

    Författare :Karina Adbo; Susanne Wikman; Shu-Nu Chang-Rundgren; Linnéuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; chemistry didactics; particulate nature of matter; phase transition; student expressed models; Swedish school; teaching models; Science Education; Naturvetenskap med utbildningsvetenskaplig inriktning; Science Education; Naturvetenskap med utbildningsvetenskaplig inriktning;

    Sammanfattning : This thesis is focused upon chemistry as a school subject and students' interpretations and use of formally introduced teaching models. To explore students' developing repertoire of chemical models, a longitudinal interview study was undertaken spanning the first year of upper secondary school chemistry. LÄS MER

  5. 4. Energy transition in transportation : Applying TIMES-based energy system optimisation models to sub-national levels

    Författare :Jonas Forsberg; Anna Krook-Riekkola; Andrea Toffolo; Åsa Lindman; Krister Sandberg; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy system analysis; ESOM; Transportation; Climate change; Air quality; Energy Engineering; Energiteknik;

    Sammanfattning : Transportation is embedded in the fabric of society and a key enabler of socio-economic development, but it is also a major source of carbon dioxide (CO2) and local air pollution (AP). Cities collectively account for around three quarters of total energy-related CO2 emissions, and the negative health impacts from local APs are most felt in dense urban environments. LÄS MER

  7. 5. Financial performance measurement supporting the transition towards circular business models

    Författare :Amal Kanzari; Lars Witell; Henrik Nehler; Josefine Rasmussen; Emelie Havemo; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Financial performance measurement; Circular business models; Management accounting practices; Circular strategy; Result-oriented business models; Sufficiency solutions; Finansiell prestationsmätning; Cirkulära affärsmodeller; Styrningspraktiker; Cirkulära strategier; Resultatdrivna affärsmodeller;

    Sammanfattning : Financial performance measurement plays an important role in leading decision-makers through strategic innovation, such as business model innovation. To convey relevant information, it is important that the practices used to measure financial performance are appropriate to what is being measured. LÄS MER