Sökning: "dielectric-properties"

Visar resultat 1 - 5 av 77 avhandlingar innehållade ordet dielectric-properties.

  1. 1. The dielectric properties of solid biofuels

    Författare :Ana Marta Paz; Erik Dahquist; Ebbe Nyfors; Mälardalens högskola; []
    Nyckelord :dielectric properties; solid biofuels; moisture content determination; Energy- and Environmental Engineering; energi- och miljöteknik;

    Sammanfattning : The use of bioenergy has been increasing due to efforts in fossil fuels replacement. Modern bioenergy technologies aim for high efficiency and low pollution levels, which increases the need for methods for the on-line characterization of biofuels. LÄS MER

  3. 2. Microwave-assisted air dehydration of fruits and vegetables : dielectric properties and drying process conditions

    Författare :Tomas Funebo; RISE; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; vegetables; dielectric properties; drying; microwave; applicators; fruits; permittivity; moisture content;

    Sammanfattning : .... LÄS MER

  4. 3. Dielectric Properties of Liquid-Impregnated Porous Solids

    Författare :Bo Nettelblad; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; fluid-solid interface; porous microstructure; temperature; ion-containing liquid; transport properties of porous media; brine; salinity; electric conduction; models of composite media; interface phenomena; dielectric relaxation; rock;

    Sammanfattning : Dielectric spectroscopy is a versatile tool that can often be used as a non-destructive, indirect way of measuring other important properties (such as content of crude oil or degree of curing of a resin). The dielectric properties of materials are thus of interest in several circumstances and not only for materials used for electrical purposes (such as electrical insulation). LÄS MER

  5. 4. Dielectric properties of machine insulation studied with dielectric response

    Författare :Anders Helgeson; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  7. 5. On the Dielectric Losses of Polyethylene at Medium and High Frequencies

    Författare :Martin Strååt; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Dielectric properties; foaming; crystallinity; polyethylene; frequency; porosity;

    Sammanfattning : AbstractAs mobile communication moves from 3G to 4G, the bandwidth used will be extended from 2 GHz to 5 GHz. The propagation loss is related to the 2.6:th power of frequency, thus a large increase in power consumption may be expected. LÄS MER