Sökning: "double sided"

Visar resultat 1 - 5 av 42 uppsatser innehållade orden double sided.

  1. 1. Dålig PR är bra PR. En kvalitativ intervjustudie om trovärdighet och förtroende för Public Relations

    Kandidat-uppsats, Göteborgs universitet/Institutionen för journalistik, medier och kommunikation

    Författare :Michaela Matsson Amneteg; [2023-11-17]
    Nyckelord :Public Relations; PR; trovärdighet; förtroende;

    Sammanfattning : Executive summary PR, short for public relations, has become a word associated with manipulation, propaganda and often characterized by low trust and low credibility according to research. Associating PR with lies or tricks is perceived to be a pattern, simultaneously PR practitioners are portrayed in popular culture as glamorous and social individuals. LÄS MER

  3. 2. Extending Wireless Power Transfer Range for Self-Powered Micro Devices with mm-size Antenna

    Master-uppsats, Linköpings universitet/Elektroniska Kretsar och System

    Författare :Natachai Terawatsakul; [2023]
    Nyckelord :;

    Sammanfattning : The primary challenge in expanding the wireless power transfer range for miniaturized self-powered micro devices is the limited RF energy harvesting due to the small effective area and low gain of the mm-sized antennas used in these devices. This thesis introduces a method for extending the distance between an external energy source antenna (TX) and a micro-device antenna (RX) to more than 10 cm. LÄS MER

  4. 3. The Commissioning of a Pixelated Charge-particle Detector : for High-sensitivity Measurements of Hydrogen

    Kandidat-uppsats, Uppsala universitet/Tillämpad kärnfysik

    Författare :Joacim Stenlund; Aram Himelius; [2023]
    Nyckelord :;

    Sammanfattning : The Tandem Laboratory at Uppsala University, a national research infrastructure forworld-leading materials analysis, has a long history of performing hydrogen measurementusing NRA (Nuclear Reaction Analysis). This project intents to diversify the infras-tructure for hydrogen measurement by investigating the feasibility of an advanced ERCS(Elastic Recoil Coincidence Scattering) system, enabling finer detection limits. LÄS MER

  5. 4. Characterisation of the LYCCA Double-Sided Silicon Strip Detectors

    Kandidat-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Partikel- och kärnfysik

    Författare :Marwan Mohamed; [2023]
    Nyckelord :DSSD LYCCA HISPEC FAIR Characterisation; Physics and Astronomy;

    Sammanfattning : The goal of this thesis work is to describe the methods used and perform comprehensive testing of the Double-Sided Silicon-Strip Detectors (DSSD) prior to their implementation in the Lund-York-Cologne CAlorimeter (LYCCA) detector. In the framework of this project, the DSSD characterisation was carried out to ensure specification compliance prior to their "in-kind contribution" delivery to the HISPEC experiment at the NUSTAR collaboration. LÄS MER

  7. 5. Investigation of switching power losses of SiC MOSFET : used in a DC/DC Buck converter

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :André Xavier Svensson; [2022]
    Nyckelord :Switching power losses; Metal Oxide Semiconductor Field Effect Transistor; Silicon carbide; Synchronous Buck converter; Wide Band Gap; Double Pulse Test; Efficiency; Temperature; Växlande effektförluster; Fälteffekttransistor; Kiselkarbid; Synchronous Buck omvandlare; Wide Band Gap; Double Pulse Test; Verkningsgrad; Temperatur;

    Sammanfattning : All DC/DC converter products include power electronic circuits for power conversion.It is important to find an efficient way for power conversion to reduce power losses and reduce the need for cooling and achieve environmentally friendly solutions.The use of semiconductor switches of wide band gap type is a solution to the problem. LÄS MER