Sökning: "Jonas Ekman"

Visar resultat 1 - 5 av 9 avhandlingar innehållade orden Jonas Ekman.

  1. 1. Electromagnetic modeling using the partial element equivalent circuit method

    Författare :Jonas Ekman; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industriell elektronik; Industrial Electronics;

    Sammanfattning : This thesis presents contributions within the field of numerical simulations of electromagnetic properties using the Partial Element Equivalent Circuit (PEEC) method. Numerical simulations of electromagnetic properties are of high industrial interest. LÄS MER

  3. 2. The partial element equivalent circuit method : modeling and experimental verification of PCB structures

    Författare :Jonas Ekman; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industriell elektronik; Industrial Electronics;

    Sammanfattning : To help products comply with international Electromagnetic Compatibility (EMC)regulations or as a help in a design process numerical simulation of electromagnetic (EM) characteristics are a valuable tool. With the development of high-speed computers the complexity of EM simulation programs and the systems they can simulate has increased considerable. LÄS MER

  4. 3. The role of Smad7 and TRAF6 in Prostate Cancer Cell Invasion, Migration and Survival

    Författare :Maria Ekman; Marene Landström; Carl-Henrik Heldin; Jonas Fuxe; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TGF-beta; cell migration; invasion; apoptosis; Smad7; APC; ATM; TRAF6; p53; PC3U; Medical Cell Biology; Medicinsk cellbiologi;

    Sammanfattning : Transforming growth factor (TGF) β is a tumor suppressor during early tumor development, by inhibiting proliferation and inducing apoptosis. At later stages of cancer, it becomes a tumor promoter, and promotes tumor cell migration and invasion. TGFβ signals via its type II and type I receptors to several downstream signaling pathways. LÄS MER

  5. 4. Transcending dichotomies : The many faces of youth dissatisfaction in democracy

    Författare :Ali Abdelzadeh; Joakim Ekman; Maarten Van Zalk; Jonas Linde; Magnus Hagevi; Örebro universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; political dissatisfaction; adolescents; critical citizens; procedural fairness; political attitudes; Political Science; Statskunskap;

    Sammanfattning : In the recent scholarly debates over changing citizenship attitudes and norms in advanced democracies, especially when it comes to rising levels of political dissatisfaction, opinion about the political role of young people is divided. For some scholars, they represent a driving force behind the development of new kinds of citizenship values, and constitute an asset to the functioning of political systems. LÄS MER

  7. 5. Multiconductor transmission lines wideband modeling : A delay-rational Green’s-function-based method

    Författare :Maria De Lauretis; Jonas Ekman; Giulio Antonini; Wil Schilders; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industriell elektronik; Industrial Electronics;

    Sammanfattning : The performance of variable-frequency drives (VFDs) commonly used in energy production plants can be severely affected by electromagnetic (EM) noise in the form of conducted disturbances.A VFD is composed of an inverter, a motor, and a connecting power cable. LÄS MER