Sökning: "Shadowing"

Visar resultat 1 - 5 av 71 avhandlingar innehållade ordet Shadowing.

  1. 1. Computational Characterization of Mixing in Flows

    Författare :Erik D. Svensson; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; mixing; hyperbolicity; shadowing; finite elements; flow simulation; a priori error estimates; Stokes equations; point location; multigrid; refinements; mixing;

    Sammanfattning : The major theme of this thesis is mathematical aspects of fluid mixing in the case when diffusion is negligible, which is commonly refered to as ’mixing by stirring’ or ’mixing by chaotic advection’ in the engineering literature. In this case the mixing is driven by a velocity field and is characterized by the flow generated by the velocity field. LÄS MER

  3. 2. On 60GHz Wireless Communication Systems

    Författare :Maxime Flament; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; scenario; DQPSK; mm-wave; broadband; MMIC; propagation; interference; shadowing; OFDM; 4:th Generation Wireless 4GW ; mobile; 60 GHz;

    Sammanfattning : The consumer of the telecommunication services of tomorrow will expectto receive the same services in a wireless fashion as he today receivesfrom a fixed network. These services require reliable high data rate. LÄS MER

  4. 3. Moments of lobbying : an ethnographic study of meetings between lobbyists and politicians

    Författare :Camilla Nothhaft; Göran Eriksson; Mats Eriksson; Øyvind Ihlen; Örebro universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; lobbying; Brussels; communication; interaction; shadowing; ethnography; strategies; organizing principles; impression management; relations; Media and Communication Studies; Medie- och kommunikationsvetenskap;

    Sammanfattning : The aim of this study is to define and further the understanding of the practice of lobbying as it manifests in the participants’ interactions with each other and to identify its specific conditions (rules, standards, traits).A research overview shows that lobbying as a political phenomenon is well researched, but that the action per se tends to been taken for granted as ‘talking’. LÄS MER

  5. 4. Broadband Wireless OFDM Systems

    Författare :Maxime Flament; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; channel model; 4th Generation Wireless 4GW ; shadowing; MMIC; WLAN; scenarios; mobile data; OFDM; turbo codes; propagation; license-exempt bands; coding; 60 GHz channel; broadband wireless; interference; Virtual Cellular Network VCN ; front-end;

    Sammanfattning : While the readiness of the telecommunication market and the users' need for broadband mobile data are not currently noticeable, a set of presented megatrends and scenarios suggest that broadband mobile data access will develop quickly in the next ten years. Identification of the potential frequency bands offering cheap and trouble-free wireless infrastructure is therefore an important step towards the definition of new air interfaces. LÄS MER

  7. 5. Pay tracing tools for high frequency electromagnetics simulations

    Författare :Sandy Sefi; KTH; []
    Nyckelord :CEM; GTD; Ray Tracing; NURBS; Software Architecture; Shadowing;

    Sammanfattning : Over the past 20 years, the development in ComputationalElectromagnetics has produced a vast choice of methods based onthe large number of existing mathematical formulations of theMaxwell equations. None of them dominate over the others,instead they complement each other and the choice of methoddepends on the frequency range of the electromagnetic waves. LÄS MER