Sökning: "wave guides"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden wave guides.

  1. 1. Support Structure and Expanding Mechanisms for a Photovoltaics Installation on a Wave Power Float

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Martin Gregorsson; Jonathan Lindén; [2023]
    Nyckelord :WEC; Solar Panels; Expandable mechanism; Photovoltaics; Wave Power; WEC; Solpaneler; Expanderbar mekanism; Fotovoltaik; Vågkraft;

    Sammanfattning : This report presents a master's thesis conducted within the machine design track at KTH Royal Institute of Technology. The research work was undertaken in collaboration with Novige AB, who commissioned the project. LÄS MER

  3. 2. Electromagnetic Homogenization-simulations of Materials

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Elektricitetslära

    Författare :Julia Törnqvist; [2019]
    Nyckelord :relative permittivity; electromagnetic simulations; FDTD method; scattering parameters; transmitted electric field; reflected electric field; plane wave; wave guides; percolation;

    Sammanfattning : This thesis aims to determine the distribution of the relative permittivity for random mixtures of material using electromagnetic simulations. The algorithm used in the simulations is the FDTD method which solves Maxwell's equations numerically in the time-domain. LÄS MER

  4. 3. Acoustic Analysis of Wave-Guide and MEMS Microphone in Camera Including Thermoviscous Losses

    Uppsats för yrkesexamina på avancerad nivå, Blekinge Tekniska Högskola

    Författare :Karolis Poskus; [2018]
    Nyckelord :;

    Sammanfattning : Today Micro Electrical Mechanical Systems (MEMS) microphones are available in a range of electronic consumer products such as smart phones, tablets, smartwatches and surveillance cameras. The MEMS microphones are usually attached to a circuit board with a hole that lets sound propagate through, as well as additional wave-guides which alter the MEMS microphones original frequency response. LÄS MER

  5. 4. Semi-Analytical Finite Element method for guided waves in civil engineering plate-like structures

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Teknisk geologi; Lunds universitet/Väg- och vattenbyggnad (CI)

    Författare :Christian Nielsen; [2015]
    Nyckelord :seismics; structural health monitoring; lamb waves; SAFE; semi analytical finite element; wave guide finite element; non destructive testing; civil engineering; ultrasound; ultrasonography; comsol; wave guide; plate; Technology and Engineering;

    Sammanfattning : Guided waves have a signicant potential for Structural Health Monitoring (SHM) and Non-Destructive Testing (NDT) due to their relatively long distance of propagation and sensitivity to discontinuities along the propagation path, anywhere through the material thickness. The inability to model wave guides of arbitrary cross-section using current matrix methods, has led to the development of a technique called Semi-Analytical Finite Element (SAFE). LÄS MER

  7. 5. From Abominable to Zealous

    Kandidat-uppsats, Göteborgs universitet/Institutionen för språk och litteraturer

    Författare :Måns Jonsson; [2014-10-13]
    Nyckelord :Usage guides; stigmatised language; diachronic change; prescriptivism; descriptivism; linguistic prestige;

    Sammanfattning : The aim of this study is to examine the views on linguistic phenomena which have been criticised during the past century. The material used is six British usage guides published between 1906 and 2010 in which five controversial points of usage are selected for study. LÄS MER