Sökning: "DRIFT"

Visar resultat 21 - 25 av 718 avhandlingar innehållade ordet DRIFT.

  1. 21. Deflating selection : On the interpretation and application of evolutionary theory

    Författare :Björn Brunnander; Sören Häggqvist; Paul Needham; Denis Walsh; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; ambiguity; causal factor; drift; evolutionary theory; force; function; intentional psychology; interpretation; multiple realisation; natural selection; philosophical method; pre-theoretical influence; redundancy; Theoretical Philosophy; teoretisk filosofi;

    Sammanfattning : Although the theory of evolution is well-established it nevertheless presents us with a few unresolved matters of interpretation. One key task is to get clear about what exactly one should take the term 'natural selection' to denote. LÄS MER

  3. 22. Induced low-temperature catalytic ignition by transient changes in the gas composition

    Författare :Per-Anders Carlsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; microkinetic modelling; carbon monoxide; low-temperature activity; catalytic ignition; DRIFT; light-off; catalytic oxidation; transients;

    Sammanfattning : .... LÄS MER

  4. 23. Studies on Lean NOx Reduction with Ammonia. Catalysts and Sensors

    Författare :Mikaela Wallin; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; catalysis; Pt SiO2; NOx reduction; gas sensor; DFT; SCR; H-ZSM-5; in situ FTIR; LCAO; DRIFT; high throughput screening; transient ammonia supply; ammonia; microemulsion; perovskite;

    Sammanfattning : Selective catalytic reduction of NOx with ammonia, NH3-SCR, is a promising technique to reduce NOx under lean conditions, e.g. in diesel engine exhausts. The main objective of this thesis was to gain further understanding of key parameters affecting the performance of catalysts and sensors for NH3-SCR. LÄS MER

  5. 24. Moa Martinson : skrift och drift i trettiotalet

    Författare :Ebba Witt-Brattström; Stockholms universitet; []
    Nyckelord :Martinson; Moa; 1890-1964; Arbetarlitteratur; Arbetarförfattare; Litteraturhistoria-- Sverige;

    Sammanfattning : Diss. Stockholm : Univ... LÄS MER

  7. 25. Scaling effects and homogenization of reaction-diffusion problems with nonlinear drift

    Författare :Vishnu Raveendran; Adrian Muntean; Irina Pettersson; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; homogenization; asymptotic expansion with drift; two-scale convergence with drift; effective transmission condition; dimension reduction; two-scale system; nonlinear dispersion; Matematik; Mathematics;

    Sammanfattning : We study the periodic homogenization of reaction-diffusion problems with nonlinear drift describing the transport of interacting particles in composite materials. The microscopic model is derived as the hydrodynamic limit of a totally asymmetric simple exclusion process for a population of interacting particles crossing a domain with obstacles. LÄS MER