Sökning: "direct effect"

Visar resultat 21 - 25 av 1303 avhandlingar innehållade orden direct effect.

  1. 21. Effect of estrogen on longitudinal bone growth

    Författare :Andrei S Chagin; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Growth plate; chondrocytes; estrogen receptors; androgen; tamoxifen.;

    Sammanfattning : Longitudinal bone growth occurs at the growth plate, a thin layer of cartilage between the epiphysis and the metaphysis of long bones. In the growth plate resting chondrocytes proliferate, differentiate into a hypertrophic form, and finally become terminal hypertrophic chondrocytes before giving rise to bone. LÄS MER

  3. 22. Processing and characterization of thin film field effect gas sensors

    Författare :Anna Elisabeth Åbom; Linköpings universitet; []
    Nyckelord :MISFET; Field effect chemical gas sensors; long-term stability; sputtering; Pt; TiN;

    Sammanfattning : At Applied Physics, Linköping University, the main interest for sensor research has been the focused on MISFET (Metal-Insulator-Semiconductor Field-Effect Transistors) and related devices. The gas sensitivity of MISFET’s was first reported by Lundström et al. in 1975. Today a lot of work is being done in this field. LÄS MER

  4. 23. Kinoforms and peripheral vision

    Författare :Fredrik Nikolajeff; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; high-pass spatial frequency target; proximity effect; kinoforms; resolution; perimetry; successive development; direct-write electron-beam litography;

    Sammanfattning : .... LÄS MER

  5. 24. Study of generation, growth and breakdown of streamwise streaks in a Blasius boundary layer

    Författare :Luca Brandt; KTH; []
    Nyckelord :Fluid mechanics; laminar-turbulent transition; boundary layer flow; transient growth; streamwise streaks; lift-up effect; receptivity; free-stream turbulence; streak instability; secondary instability; Direct Numerical Simulation.;

    Sammanfattning : Transition from laminar to turbulent flow has beentraditionally studied in terms of exponentially growingeigensolutions to the linearized disturbance equations.However, experimental findings show that transition may occuralso for parameters combinations such that these eigensolutionsare damped. LÄS MER

  7. 25. Stability analysis and transition prediction of wall-bounded flows

    Författare :Ori Levin; KTH; []
    Nyckelord :Boundary layer; wall jet; algebraic growth; exponential growth; lift-up effect; streamwise streaks; Tollmien-Schlichting waves; free-stream turbulence; roughness element; transition prediction; Parabolized Stability Equations; Direct Numerical S;

    Sammanfattning : Disturbances introduced in wall-bounded .ows can grow andlead to transition from laminar to turbulent .ow. In order toreduce losses or enhance mixing in energy systems, afundamental understanding of the . LÄS MER