Sökning: "loss tangent"

Visar resultat 16 - 20 av 21 avhandlingar innehållade orden loss tangent.

  1. 16. System-in-a-Package on Low-Cost Liquid Crystal Polymer Substrate

    Författare :Gang Zou; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; FDTD; integrated passive components; ACA; liquid crystal polymer; FEM; flip-chip; RF; anisotropic conductive adhesive; system-in-a-package; system-on-a-package;

    Sammanfattning : System-in-a-Package (SiP) is one of the most advanced approaches to meet the requirements for future high-density electronics packaging. In this thesis, a 3D system-in-a-package concept with embedded active and passive components is proposed, where a liquid crystal polymer (LCP) was used as the base substrate. LÄS MER

  3. 17. Stabilization-solidification of high water content dredged sediment : Strength, compressibility and durability evaluations

    Författare :Gregory Makusa; Kauko Kujala; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Soil Mechanics; Geoteknik;

    Sammanfattning : Dredging activities at ports and harbors are inevitable for safe navigation of ships and vessels. The outcomes of dredging are huge volumes of dredged materials, which can range from very fine and contaminated sediments to sands and gravels. The coarse sands and gravels can be directly used in civil engineering applications. LÄS MER

  4. 18. A Fundamental Adhesion Model for Asphalt

    Författare :Åsa Laurell Lyne; Björn Birgisson; Robert Lytton; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : One of the mechanisms for the deterioration of asphalt is debonding. This is often referred to as stripping. Most losses of adhesion at the bitumen-aggregate interface are attributed to the action of water leading to a reduction in properties such as tensile strength, tensile stiffness and wear resistance. LÄS MER

  5. 19. Volumetric Analysis in Mechanical Behaviour and Physical Ageing of Polymers

    Författare :Mats Delin; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ageing rate; Gr neisen parameter; bulk modulus; KAHR model; dilatometry; Poisson s ratio; timescale; physical ageing; dynamic mechanical properties; stress relaxation; volume changes; creep; Doolittle s equation;

    Sammanfattning : Volumetric changes associated with the deformation of ideal elastic solids depends on elastic constants of the solid and applied strain. Their magnitude is easily determined from the corresponding Poisson's ratios. LÄS MER

  7. 20. On Estimation of Moisture Content in Mass Impregnated Distribution Cables

    Författare :Roberts Neimanis; KTH; []
    Nyckelord :;

    Sammanfattning : Mass impregnated paper insulated cables in distributionnetworks (6-33 kV) nowadays are gradually being replaced byXLPE insulated cables, yet, the percentage of mass impregnatedcables in distribution networks is still considerable. Thisreplacement is a long-term strategy, where right timing,properly made investments, etc. play crucial role. LÄS MER