Sökning: "MBS"

Visar resultat 16 - 20 av 40 avhandlingar innehållade ordet MBS.

  1. 16. Exploring Polymer-Shelled Microbubbles: Detection Modeling and Application

    Författare :Hongjian Chen; Dmitry Grishenkov; Birgitta Janerot-Sjöberg; Tomas Jansson; KTH; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Ultrasound contrast agent; polymer-shelled microbubble; ultrasound imaging; contrast pulse sequence; microbubble model; hydrodynamic cavitation; Technology and Health; Teknik och hälsa;

    Sammanfattning : Ultrasound imaging (US) is widely used in clinical practice. Given the low cost and easy access to the ultrasound machine, US has a great potential to improve the health care condition for the majority of the population in the world. The US could be significantly improved by injecting ultrasound contrast agents to opacify the bloodstream. LÄS MER

  3. 17. Bioanalytical separation using capillary electrophoresis : Applications with microbubbles and proteins

    Författare :Leila Josefsson; Åsa Emmer; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Background electrolyte; capillary electrophoresis; contrast agents; electroosmotic flow; ethylammonium nitrate; ionic liquids; microbubbles; particles; polyvinyl alcohol microbubbles; and separation; Kemi; Chemistry;

    Sammanfattning : In this thesis the possibilities of using capillary electrophoresis as a separation technique for analysis of proteins and microbubbles is presented.A complete analytical process consists of five necessary steps of which one is the actual analysis step. For this step a suitable analytical technique is needed. LÄS MER

  4. 18. On multi body systems simulation in product design

    Författare :Petri Makkonen; KTH; []
    Nyckelord :;

    Sammanfattning : The aim of this thesis is to provide a basis for efficientmodelling and software use in simulation driven productdevelopment. The capabilities of modern commercial computersoftware for design are analysed experimentally andqualitatively. LÄS MER

  5. 19. Simulation of Dynamic Interaction between Train and Turnout

    Författare :Elias Kassa; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dynamic train–turnout interaction; wheel–rail contact geometry; switches and crossings; multibody dynamics; contact forces;

    Sammanfattning : Dynamic train–track interaction is more complex in railway turnouts (switches & crossings) than on ordinary tangent or curved tracks. Multiple contacts between wheel and rail are common, and severe impact loads with broad frequency contents are induced when the nominal wheel–rail contact conditions are disturbed due to the continuous variation in rail profiles and the discontinuities in the crossing panel. LÄS MER

  7. 20. Head Injuries in Car-to-Pedestrian Accidents - Investigation of Head Impact Dynamics, Injury Mechanisms and Countermeasures

    Författare :Jianfeng Yao; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; accident analysis; head injury; head protection; mathematical simulation; accident reconstruction; injury mechanism; Pedestrian accident;

    Sammanfattning : The aim of this study was to investigate head impact dynamics and to establish risk functions for head injuries by mathematical reconstructions of real-world car-to-pedestrian accidents. Furthermore, an attempt was made to develop an approach for the design and evaluation of head-protective devices. LÄS MER