Sökning: "EHD"

Visar resultat 1 - 5 av 9 uppsatser innehållade ordet EHD.

  1. 1. Analysis of high-voltage low-current DC/DC converters for electrohydrodynamic pumps

    Kandidat-uppsats, Uppsala universitet/Institutionen för elektroteknik

    Författare :Sigge Axelsson; Jonas Gartner; Axel Stafström; [2023]
    Nyckelord :high-voltage; low-current; low-power; DC DC; DC-DC; high-gain; converter; electrohydrodynamic pump; EHD; transformerless converter; Royer-based converter; resonant Royer oscillator; Cockroft-Walton voltage multiplier; CWVM; voltage multiplier; series-connected positive-negative voltage multiplier; SPNVM; planar air-core transformer; planar transformer; high-freqency Royer-based converter; overcurrent protection; LT8331; gallium nitride; GaN; planar PCB-integrated transformers;

    Sammanfattning : Moving parts cause vibrations and tend to wear out. In applications where maintenance is complicated, solutions without moving parts are therefore advantageous. Electrohydrodynamic pumps are such a solution. Instead of mechanical propulsion, they use strong electric fields to induce movement in a dielectric cooling liquid. LÄS MER

  3. 2. 3D printing of gold nanoparticles

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Fasta tillståndets fysik

    Författare :Patrick Posluk; [2020]
    Nyckelord :3D printing;

    Sammanfattning : and the placement of the material. Hence, 3D printing can be an advantageous new method of constructing supercapacitors.In this thesis, the aim was to investigate how the different parameters of Electrohydrodynamic printing (EHD printing) will affect the spread of gold nanoparticles. LÄS MER

  4. 3. Increasing the Writing Resolution for Electro-hydrodynamic 3D-Printing : by Active Steering of e-jet

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Mikrosystemteknik

    Författare :Henrik Dan Bergman; [2019]
    Nyckelord :EHD; Electro-hydrodynamic; 3D-printing; Resolution; PCL; e-jet; Additive Manufacturing;

    Sammanfattning : Additive manufacturing has grown considerably during the last couple of decades, whether it comes to the printing of metal structure or living cells. Additive manufacturing techniques relays on the successive addition of material to create the wanted structure. LÄS MER

  5. 4. Study of a Battery Driven Electrohydrodynamic Thruster

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Kajsa Hjort; Elias Hachichou; [2017]
    Nyckelord :;

    Sammanfattning : Electrohydrodynamic (EHD) thrusters hold promiseto provide more efficient thrust than propeller driven systems forsmall drones. However, the fact is that there is incomplete analysisin the area and that no work has yet studied the capacities ofbattery driven EHD thrusters. LÄS MER

  7. 5. Merging Electrohydrodynamic Printing and Electrochemistry : Sub-micronscale 3D-printing of Metals

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad materialvetenskap

    Författare :Marcus Lindén; [2017]
    Nyckelord :additive manufacturing; 3D-printing; microsystem; nanotechnology; nanoscale; EHD; electrochemical; metals;

    Sammanfattning : Additive manufacturing (AM) is currently on the verge of redefining the way we produce and manufacture things. AM encompasses many technologies and subsets, which are all joint by a common denominator; they build three dimensional (3D) objects by adding materials layer-upon-layer. LÄS MER