Sökning: "shock transmission"

Visar resultat 1 - 5 av 30 avhandlingar innehållade orden shock transmission.

  1. 1. Structural studies of microbubbles and molecular chaperones using transmission electron microscopy

    Författare :Johan Härmark; Philip JB Köck; Hans Hebert; Reinhard Rachel; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Transmission electron microscopy; Contrast agent; Microbubble; Polyvinyl alcohol; Single particle analysis; Heat shock protein; Molecular chaperone; Technology and Health; Teknik och hälsa;

    Sammanfattning : Ultrasound contrast agents (CAs) are typically used in clinic for perfusion studies (blood flow through a specific region) and border delineating (differentiate borders between tissue structures) during cardiac imaging. The CAs used during ultrasound imaging usually consist of gas filled microbubbles (MBs) (diameter 1-5 μm) that are injected intravenously into the circulatory system. LÄS MER

  3. 2. Essays on Risk Attitudes in Sub-Saharan Africa

    Författare :Mohammad H. Sepahvand; Ranjula Bali; Chuan-Zhong Li; Supriya Garikipati; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Risk attitudes; determinants of risk taking; test-retest reliability; gender; inter and multigenerational transmission; socialization; family background; sibling correlations; exogenous shock; revolution; gender differences; agriculture; productivity; Burkina Faso; Economics; Nationalekonomi; Economics; Nationalekonomi;

    Sammanfattning : Essay I (submitted): Risk-taking is an important topic in Africa, as access to financial institutions and social security is scarce. Data on risk attitudes in Africa is limited and the available data collected might not be reliable. LÄS MER

  4. 3. Essays on the Intergenerational Transmission of Disadvantage : The Role of Prenatal Health and Fertility

    Författare :André Richter; Markus Jäntti; Anders Björklund; Magnus Johannesson; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economics; nationalekonomi;

    Sammanfattning : This thesis consists of four chapters on the role of prenatal health and fertility on the intergenerational transmission of disadvantage. The first two are related, and the third and fourth chapters are independent essays. LÄS MER

  5. 4. Discrete element simulation of elasto-plastic shock waves in high-velocity compaction

    Författare :Muhammad Shoaib; Leaf Kari; Bruska Azhdar; Wim Desmet; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; High-velocity compaction; Discrete element method; Plastic deformaiton; dynaimic loading; elasto-plastic shock wave; Friction; Adhesion; Physics; Fysik; Järnvägsgruppen - Ljud och vibrationer; Järnvägsgruppen - Ljud och vibrationer;

    Sammanfattning : Elasto-plastic shock waves in high-velocity compaction of spherical metal particles are the focus of this thesis which consists of four papers (A-D). The compaction process is modeled by a discrete element method while using elastic and plastic loading, elastic unloading and adhesion at contacts. LÄS MER

  7. 5. Development of techniques for measurements of shock wave response and moisture content in granite

    Författare :Dan Tilert; Lars Mattsson; Mikael Sjödahl; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industrial engineering and economy; Industriell teknik och ekonomi;

    Sammanfattning : For measuring small, fast deformations on a micrometre scale optical methods are common. Various forms of interferometry are available, and holography is another possibility. However, if there are complications such as limited space and hazardous environments special demands arise. LÄS MER