Sökning: "slow field changes"

Visar resultat 21 - 25 av 35 avhandlingar innehållade orden slow field changes.

  1. 21. From Macroscopic to Microscopic Dynamics of Superconducting Cavities

    Författare :Anirban Bhattacharyya; Vitaliy Goryashko; Volker Ziemann; Roger Ruber; Jean Delayen; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; superconducting cavity; superconductivity; self-excited loop; Ginzburg-landau; vortex; optimization; quality factor; microwave; Fysik med inriktning mot elementarpartikelfysik; Physics with specialization in Elementary Particle Physics;

    Sammanfattning : Superconducting (SC) radio frequency (RF) cavities are at the heart of many large-scale particle accelerators such as the European Spallation Source (ESS), the X-ray Free Electron Laser (XFEL), the Linac Coherent Light Source (LCLS)-II and the proposed International Linear Collider (ILC). The SC cavities are essentially resonant structures with very high intrinsic quality factors (Q0) of the order of 1010. LÄS MER

  3. 22. Infrared Laser Stimulation of Cerebral Cortex Cells - Aspects of Heating and Cellular Responses

    Författare :Rickard Liljemalm; Tobias Nyberg; Hans von Holst; Claus-Peter Richter; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; laser; modeling; heating; infrared neural stimulation; astrocytes; neurons; damage;

    Sammanfattning : The research of functional stimulation of neural tissue is of great interest within the field of clinical neuroscience to further develop new neural prosthetics. A technique which has gained increased interest during the last couple of years is the stimulation of nervous tissue using infrared laser light. LÄS MER

  4. 23. The role of industry context for new venture internationalization : Evidence from the medical technology sector

    Författare :Hélène Laurell; Svante Andersson; Per Servais; Jönköping University; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

    Sammanfattning : The medical technology sector consists of numerous small niche markets. Approximately 95% are small and medium sized enterprises, many of which are start-ups that develop technological breakthroughs for the healthcare sector. The competition in this sector is highly global. LÄS MER

  5. 24. Dynamics of the cold surface layer of polythermal Storglaciären, Sweden

    Författare :Rickard Pettersson; Per Holmlund; Peter Janssson; Jens-Ove Näslund; Regine Hock; Helgi Björnsson; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; polythermal glacier; cold surface layer; ground-penetrating radar; spatial variability; water content; Storglaciären; Earth sciences; Geovetenskap;

    Sammanfattning : Polythermal glaciers, i.e. glaciers with a combination of ice at and below the freezing point, are widespread in arctic and subarctic environments. The polythermal structure has major implications for glacier hydrology, ice flow and glacial erosion. LÄS MER

  7. 25. Characterising Weak Interactions in Solution. : An NMR Spectroscopic Approach

    Författare :Scott Wilcox; Máté Erdélyi; Chris Hunter; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Kemi med inriktning mot organisk kemi; Chemistry with specialization in Organic Chemistry;

    Sammanfattning : Detecting and characterising weak interactions in dilute solutions is challenging. This thesis focusses on the development of a new NMR spectroscopic strategy to do so, whilst also investigates a newly proposed type of weak interaction in solution with currently available NMR techniques. LÄS MER