Search for dissertations about: "microchannels"

Showing result 1 - 5 of 27 swedish dissertations containing the word microchannels.

  2. 1. Phase Change Phenomena During Fluid Flow in Microchannels

    Author : Rashid Ali; Björn E Palm; Gian Piero Celata; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Microchannels; Boiling; Heat Transfer; Thermal energy engineering; Termisk energiteknik; SRA - Energy; SRA - Energi;

    Abstract : Phase change phenomena of a fluid flowing in a micro channel may be exploited to make the heat exchangers more compact and energy efficient. Compact heat exchangers offer several advantages such as light weight, low cost, energy efficiency, capability of removing high heat fluxes and charge reduction are a few to mention. READ MORE

  4. 2. Sample preconcentration in open microchannels : Combinations with MALDI and nano-ESI mass spectrometry and computer simulations

    Author : Saara Mikkonen; Åsa Emmer; Leopold Ilag; Jenny Ottosson Takanen; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Preconcentration; open microchannel; microchip; MALDI; electrospray ionization; nanoelectrospray; mass spectrometry; computer simulation;

    Abstract : In this thesis a novel concept for preconcentration of biomolecules in open microchannels is presented. The preconcentration is based on electromigration of charged analytes, and detection is performed with matrix-assisted laser desorption/ionization (MALDI) or nano-electrospray ionization (nESI) mass spectrometry (MS). READ MORE

  5. 3. Thermal Characterization and Modelling in Microsystem Packaging Applications

    Author : Elisabeth Nyström; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Carbon nanotubes; Thermal management; Transient Hot Wire; Composite; Microchannels; Anisotropic Conductive Adhesive;

    Abstract : As the electronics circuits grow denser and the power consumption per area unit is increasing, new more efficient technologies for heat removal is necessary. Heat fluxes from the integrated circuit, IC, in the order of 100W/cm2 are not rare. READ MORE

  6. 4. Miniaturised Microwell-based Cell Assays

    Author : Emilie Weibull; Helene Andersson Svahn; Albert van den Berg; KTH; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; microwell; miniaturisation; high-resolution imaging; high-throughput; cell culture; single-cell; clone; heterogeneity; antibiotic susceptibility testing; concentration gradient; interfacing; microchannels; cell retrieval;

    Abstract : Cell heterogeneity in genetically identical cell populations is becoming a well-known and important phenomenon in cell biology. Current methods commonly utilise population-based analysis founded on averaged result. Hence there is a need for high-throughput cell assays on the single-cell level. READ MORE

  7. 5. Electrophoretic focusing in microchannels combined with mass spectrometry : Applications on amyloid beta peptides

    Author : Saara Mikkonen; Åsa Emmer; Johan Jacksén; Tapio Kotiaho; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; amyloid beta; computer simulation; electrophoresis; electrospray ionization; isoelectric focusing; isotachophoresis; MALDI; mass spectrometry; microchannel; microchip; nano-electrospray ionization; preconcentration; separation; Kemi; Chemistry;

    Abstract : Analysis of low-abundance components in small samples remains a challenge within bioanalytical chemistry, and new techniques for sample pretreatments followed by sensitive and informative detection are required. In this thesis, procedures for preconcentration and separation of proteins and peptides in open microchannels fabricated on silicon microchips are presented. READ MORE