Sökning: "shock-wave"

Visar resultat 1 - 5 av 24 uppsatser innehållade ordet shock-wave.

  1. 1. Evidensläget för stötvågsbehandling mot spasticitet hos individer med Cerebral Pares : En systematisk kritisk litteraturstudie

    Kandidat-uppsats, Linköpings universitet/Institutionen för hälsa, medicin och vård

    Författare :Ebba Hjelm; Lina Larsson; Lina Karlsson; [2023]
    Nyckelord :Extrakorporeal stötvågsbehandling; Cerebral Pares; Muskelspasticitet; Fysioterapi;

    Sammanfattning : Bakgrund: Spasticitet är ett vanligt symptom bland personer med Cerebral Pares och kan ge konsekvenser som påverkar individen negativt, exempelvis smärta, obehag och funktionshindrande deformiteter. I dagsläget finns begränsad evidens för stötvågsbehandling i syfte att förändra spasticitet hos personer med Cerebral Pares. LÄS MER

  3. 2. Structural responses due to underwater detonations : Validation of explosion modelling methods using LS-DYNA

    Master-uppsats, Linköpings universitet/Mekanik och hållfasthetslära

    Författare :Gustav Blomgren; Ebba Carlsson; [2023]
    Nyckelord :Underwater explosion; UNDEX; detonation; fluid structure interaction; FSI; SSA; S-ALE; shock-wave; explosive; PETN; explosive modelling; Sub-Sea Analysis; Structured ALE; Arbitrary Lagrangian Euler; Multi Material Arbitrary Lagrangian Euler; MMALE; LS-DYNA;

    Sammanfattning : Modelling the full event of an underwater explosion (UNDEX) is complex and requires advanced modelling methods in order to achieve accurate responses. The process of an UNDEX includes a series of events that has to be considered. LÄS MER

  4. 3. Petrography of impactites from the Dellen impact structure, Sweden

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Robert Mroczek; [2023]
    Nyckelord :Dellen; Impact; structure; magnetite; apatite; shock waves; shock-metamorphic; features; Impactite; petrography; scanning electron microscope; SEM; geology; Earth and Environmental Sciences;

    Sammanfattning : Identification and characterization of shock-metamorphic features in hypervelocity impact craters is important for our understanding of how shock waves interact with geologic materials and how impact craters form, which in turn is essential to our understanding of what role impact cratering played in the development of our solar system. Of particular interest are accessory minerals like apatite, which contains various volatiles that can affect the atmosphere of a body, or magnetite whose magnetic properties constitute a remote sensing indicator which allows us to study and understand the internal structures of distant bodies. LÄS MER

  5. 4. Stötvågsterapi och dess effekt på spasticitet hos patienter med långvarig stroke: en systematisk litteraturstudie

    Kandidat-uppsats, Uppsala universitet/Åsenlöf: Fysioterapi

    Författare :Thomas Tollstedt; Tschernij Oscar; [2022]
    Nyckelord :modified ashworth scale; spasticity; extra corporeal shock wave therapy ESWT ; stroke; function;

    Sammanfattning : Background: Spasticity is a common symptom post-stroke which causes vast complications regarding important daily functions among patients. This manifests as a resistance in the muscle during a velocity-dependent passive motion and is commonly evaluated by using the Modified Ashworth Scale (MAS). LÄS MER

  7. 5. Development of a CFD Boundary Condition to Simulate a Perforated Surface

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Medet Kiflemariam; [2021]
    Nyckelord :Computational Fluid Dynamics; CFD; Boundary Condition; Bleed; Aerospace Engineering; Aeronautical Engineering; Physics;

    Sammanfattning : In aircraft with jet propulsion engine intakes at supersonic speed, strong pressure waves referred to as shockwaves occur, which may interact with any present boundary layers along the intake surface. The adverse pressure gradients associated with Shock Wave-Boundary Layer Interaction (SWBLI) may cause boundary layer flow separation, which can result in disturbances of the flow that can be harmful to the device or decrease engine performance. LÄS MER