Sökning: "Theory of Characteristic Modes"

Visar resultat 6 - 10 av 18 avhandlingar innehållade orden Theory of Characteristic Modes.

  1. 6. Quantum Transport Theory in Graphene

    Författare :Anders Bergvall; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; quantum coherent electron transport; nanoribbons; FT-LDOS; grain boundaries; tight-binding; graphene;

    Sammanfattning : In this thesis, we focus on different aspects of electron transport in nanostructured graphene (such as graphene nanoribbons). Wedevelop and implement numerical methods to study quantum coherent electron transport on an atomistic level, complemented by analytical calculations based on the Dirac approximation valid close to the points $\vec{K}$ and $\vec{K}^\prime$ in the graphene Brillouin zone. LÄS MER

  3. 7. Utopian-driven projektive research exploring the field of Metaurbanism

    Författare :Nel Janssens; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Worlding; Urbanisation; Sense-making; Meta-Urbanism; Theory-through-design; Unsettlement; Poetic knowledge building; Imagineering; Utopia-Driven Projective Research; Projectivity;

    Sammanfattning : In this thesis a design-based approach is developed to address the issue of reconceptualising urbanisation. The approach is called utopia-driven projective research and is the result of a process of reflection on a number of conceptual design projects the author participated in. LÄS MER

  4. 8. Skirting the Subject : Pursuing Language in the Works of Adrienne Rich, Susan Griffin, and Beverly Dahlen

    Författare :Alan Shima; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Feminist theory; feminist poetics; women s language; Adrienne Rich; Susan Griffin; Beverly Dahlen; Literature; Litteraturvetenskap; English language;

    Sammanfattning : In this study I delve into the strategic certainty and theoretical quandary that characterize both the practice and the assessment of “women’s language.” My contention is that “women’s language” is a composite of hypothetical speculations, political intentions, interpretive practices, and ethical convictions. LÄS MER

  5. 9. Structural Information Content of the Optical Field

    Författare :Per Martinsson; Ari Friberg; Karl-Heinz Brenner; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Photonics; Fotonik;

    Sammanfattning :  The communication modes are a mathematical technique for the description of structural information in optical fields. These modes are orthogonal, optimally  connected functions characteristic of the optical system. Mathematically they are obtained by the singular value decomposition (SVD) of the operator that represents the field propagation. LÄS MER

  7. 10. Stability and Receptivity of Three-Dimensional Boundary Layers

    Författare :David Tempelmann; Dan Henningson; Stefan Hein; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Receptivity; stability; optimal growth; three-dimensional boundary layers; parabolised stability equations; adjoint PSE; crossflow instability; Fluid mechanics; Strömningsmekanik;

    Sammanfattning : The stability and the receptivity of three-dimensional flat plate boundary layers is studied employing parabolised stability equations. These allow for computationally efficient parametric studies. Two different sets of equations are used. LÄS MER