Sökning: "Stående vågor"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden Stående vågor.

  1. 1. Characterization of Pressure and Velocity Fields in Acoustophoresis Using Particle Tracks

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Jonathan Karlsson; [2023]
    Nyckelord :Acoustofluidics; Acoustophoresis; Ultrasonic Standing Waves; Acoustic fields; Particle tracking; Bio marking; Akustofluidik; Akustofores; Stående Ultraljuds Vågor; Akustiska fält; Particle tracking; Bio-markering;

    Sammanfattning : This master’s thesis explores the possibility of calculating and using the pressure andvelocity fields responsible for acoustophoresis. The goal was to use simulated data,similar to two-dimensional particle tracks from a specific microfluidic platform, toestimate the force potential and solve the partial differential equation (PDE) thatgoverns the relationship between the force potential and the acoustic fields. LÄS MER

  3. 2. Comparison of RF Heating in ASDEX Upgrade and ITER

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

    Författare :Axel Blennå; Mark Kalldas; [2022]
    Nyckelord :Fusion; ASDEX Upgrade; ITER; FEMIC; ICRH; eigenmode; beam; wave absorption;

    Sammanfattning : The increased effects of global warming have been a driving force to further research and develop sustainable energy sources, such as fusion. In this study, two different fusion devices are compared in terms of ion cyclotron resonance heating (ICRH)of plasma. The two devices are the tokamaks ASDEX Upgrade and not yet built ITER. LÄS MER

  4. 3. Determining the Acoustic Mobility of Breast Cancer Cells

    Master-uppsats, Lunds universitet/Avdelningen för Biomedicinsk teknik

    Författare :Simon Olsson; [2022]
    Nyckelord :Technology and Engineering;

    Sammanfattning : Breast cancer is one of the most common forms of cancer detected in women. Its heterogeneity and large mutational landscape requires treatment strategies which varies between patients. Triple negative breast cancer (TNBC) is a particularly aggressive subtype which 12-17 \% of breast cancer patient develop. LÄS MER

  5. 4. Efterklangstid i mindre lyssningsrum : Beräkning och mätning utav efterklangstid samt stående vågor

    M1-uppsats, Mittuniversitetet/Institutionen för data- och elektroteknik (2023-)

    Författare :William Calissendorff Brodd; [2022]
    Nyckelord :Efterklang; impulsrespons; akustik; stående vågor;

    Sammanfattning : This project deals with calculations and measurements of reverberation time inside a small listening room. The purpose is to gain knowledge of the acoustics in a furnished home. Also, how music productions made within are affected by the room’s acoustic conditions. Work began with calculations which were later compared with the measured results. LÄS MER

  7. 5. Transient Plasma Photonic Crystals - A Route Towards Slow Ultra-intense Light?

    Master-uppsats, Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

    Författare :Robin Weissenbilder; [2018]
    Nyckelord :slow; light; plasma; photonic; crystal; transient; ultra-intense; short; pulse; laser; Physics and Astronomy;

    Sammanfattning : Periodic electron and ion density modulations in near critical density plasmas induced by counterpropagating femtosecond pulses of intensities on the order of 10¹⁵ to 10¹⁶ Wcm⁻² are described in a linear and stationary regime and investigated using particle-in-cell simulations in one and two dimensions. The periodic gratings produce transient plasma photonic crystals lasting up to several picoseconds with ultra-wide angle-selective band gaps on the order of Δω/ω₀ ≈ 10-20%. LÄS MER