Sökning: "wave guide"

Visar resultat 1 - 5 av 26 avhandlingar innehållade orden wave guide.

  1. 1. Wave-guide bands of continuous spectrum

    Författare :Pavel Kurasov; Matematik LTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Abstract in Russian See paper version.... LÄS MER

  3. 2. Wave-actuated Preform Infiltration Routines in MMC Production

    Författare :Lars-Olov Pennander; Industriell Produktion; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Material technology; Magnetostrictive; Vibration; Actuation; Wave; Infiltration; Preform; Metal; Composites; MMC; Materiallära; materialteknik;

    Sammanfattning : The implementation of highly magnetostrictive wave-actuator techniques in preform infiltration processes for metal-matrix composite production is described. Metal matrix materials require additional methods to handle the content, shape and position of the ceramic reinforcements, which are not required for metal alloy casting. LÄS MER

  4. 3. Modelling tools for quieter vehicles : Waves in poro– and visco–elastic continua

    Författare :Martin Östberg; Leif Kari; Jenny Jerrelind; Sergey Sorokin; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vibro-acoutics; poro-elastic; visco-elastic; reduced models; Harmonic expansion; wave guide;

    Sammanfattning : New modelling tools intended to contribute to the development of components for quieter vehicles are developed. The tools are based on continuum models for wave propagation in poro– and visco–elastic media. By using geometric attributes of the studied components, the computational cost may be radically decreased compared to traditional methods. LÄS MER

  5. 4. Modelling of low frequency sound in duct networks

    Författare :Stefan Nygård; KTH; []
    Nyckelord :Duct pipe; System network; Wave-guide; Flow; Sound; Noise; Fluid machine; 2-port; 1-port; Active; Passive; Flow separation; Code; Simulation; Low frequency;

    Sammanfattning : .... LÄS MER

  7. 5. From Molecular Catalysts to Hybrid Electrodes: A Theoretical Guide

    Författare :de Gracia Triviño Juan Angel; Mårten S. G. Ahlquist; Aleksandra Vojvodic; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Theoretical Chemistry and Biology; Teoretisk kemi och biologi;

    Sammanfattning : The industrial revolution thrived our society to great technological advancement and a shift from an agrarian to an industrial society. Besides this fact, the side effect has been the development of a society highly dependent on energy, and the main sources of energy are based on non-renewable fossil fuels. LÄS MER