Sökning: "Surface Potential"

Visar resultat 1 - 5 av 1354 avhandlingar innehållade orden Surface Potential.

  1. 1. Functionalization and characterization of surface supported lipid membranes and their application in cell culture

    Detta är en avhandling från Chalmers University of Technology

    Författare :Dorota Thid; Chalmers tekniska högskola.; Chalmers University of Technology.; [2007]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ytbehandlingsteknik; Surface engineering; supported phospholipid bilayer; membrane; peptide; IKVAV; fatty acid; DHA; cell - surface interaction; surface functionalization; neural cells; stem progenitor cells; cell attachment; cell differentiation; QCM-D; surface analytical techniques;

    Sammanfattning : Phospholipid bilayers supported on a solid surface constitute a versatile, biomimetic platform for a variety of applications, such as biosensing, drug delivery research, cell engineering and as cell membrane mimics in fundamental cell research. Phosphocholine supported lipid bilayers are resistant to cell attachment in a wide range of conditions, and can be functionalized with bioactive signaling molecules to promote specific interactions with cells. LÄS MER

  2. 2. Potential Flow Panel Methods for the Calculation of Free-surface Flows with Lift

    Detta är en avhandling från Chalmers University of Technology

    Författare :Carl-Erik Janson; Chalmers tekniska högskola.; Chalmers University of Technology.; [1997]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk mekanik; Engineering mechanics; analytical method; boundary layer; CFD; collocation point shift; damping; Dawson operator; desingularized; dipole; discrete Fourier transform; dispersion; four point operator; free surface; hydrofoil; induced drag; lift force; Method of Moving Asymptotes; MMA; Navier-Stokes; nonlinear; numerical method; OCTOPUS; potential flow; raised panel method; Rankine source; sailing yacht; shape optimization; surface piercing wing; SHIPFLOW; vortex; waves;

    Sammanfattning : Two non-linear Rankine-source panel methods are developed and implemented in the same computer code. The first method uses a four-point upwind operator on the free-surface to compute the velocity derivatives and to enforce the radiation condition while the second method uses an analytical expression for the velocity derivatives and a collocation point shift one panel upstream to prevent upstream waves. LÄS MER

  3. 3. Tribology of stamping : the influence of designed steel sheet surface topography on friction

    Detta är en avhandling från Göteborg : Chalmers tekniska högskola

    Författare :Daniel Wiklund; Högskolan i Halmstad.; Chalmers tekniska högskola.; Chalmers University of Technology.; [2006]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Chemical engineering Metallurgical process and manufacturing engineering; TEKNIKVETENSKAP Kemiteknik Metallurgisk process- och produktionsteknik; steel sheet; tribology; surface topography; Ytbehandlingsteknik; Surface engineering;

    Sammanfattning : Tribology is the science of friction, wear, and lubrication; the interaction of surfaces in relative motion. The tribological conditions in sheet metal forming influences the flow of material in forming operations, the strain distributions of sheet material, extent of wear, and thereby the quality of products. LÄS MER

  4. 4. Surface Charge Dynamics on Polymeric Insulating Materials for High Voltage Applications

    Detta är en avhandling från Chalmers University of Technology

    Författare :Shahid Alam; Chalmers tekniska högskola.; Chalmers University of Technology.; [2014]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Surface charging; surface potential; decay rate; ambient pressure; gas neutralization; charge transport; electrical conductivity; HVDC insulation.;

    Sammanfattning : To meet increasing demands in electric energy, it is essential to enhance production of electricity from renewable energy sources (solar, wind and hydro). Such generation sites, however, are usually separated from consumption sites by long distances. LÄS MER

  5. 5. Aqueous Processing of WC-Co Powders

    Detta är en avhandling från Stockholm : Kemi

    Författare :Karin M. Andersson; KTH.; [2004]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Hard Metal; Cemented Carbide; WC-Co; Tungsten Carbide; Cobalt; Oxidation; Dissolution; Surface Complexation; XPS; AFM; Colloidal Probe; Hamaker Constant; Cauchy; WO3; CoOOH; ESCA; Zeta-Potential; Surface Potential; Poly ethylene imine ; PEI; Suspensi;

    Sammanfattning : The object of this work is to obtain a fundamentalunderstanding of the principal issues concerning the handlingof an aqueous WC-Co powder suspension.The WO3 surface layer on the oxidised tungsten carbidepowder dissolves at pH>3 with the tungsten concentrationincreasing linearly with time. LÄS MER