Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Apparent thermal conductivity"”.
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A blood-perfusion flowmeter
… method (radio-active dyes, microspheres) or a thermal method where the rate of heat clearance from a heated probe is used as a measure of local flow. Tracer methods suffer from the fact that they give essentially a single measurement of flow and this only after tissue has been removed and …
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Heat transport by phonons in crystalline materials and nanostructures
… thermoreflectance (TDTR) for measurements of thermal conductivity of nanostructures and thermal conductance of interfaces; and frequency-domain thermoreflectance (FDTR), which I developed as a direct probe of the mean-free-paths of dominant heat-carrying phonons in crystalline solids. The …
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Applications of Distributed Temperature Sensing in Subsurface Hydrology
… three methodological approaches are developed: thermal dilution tests, point heating, and the hybrid cable method. A numerical model was developed to assess the sensitivity range of thermal dilution tests to groundwater flow. Thermal dilution tests undertaken at Ploemeur showed lithological …
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Performance of aerogel composite and foam insulations
… temperature and humidity conditions and their thermal performance during several weeks of controlled environmental exposure has been observed. Several commercially available insulating materials (three aerogel composite blankets, two extruded poly- styrene foams (XPS) and one blown polyurethane …
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Biomass gasification in small scale plants: experimental and modelling analysis
… has been elaborated to estimate an apparent thermal conductivity coefficient to be used in a 2D model for heat transfer simulation; moreover the data on the syngas composition have been used to test the reliability of a thermo chemical equilibrium model previously developed. The …
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Using high pressure to study thermal transport and phonon scattering mechanisms
… for heat dissipation and moderation of thermal expansion, and the semiconductor industry faces a Joule heating barrier in devices with high power density. Be it for the nanocomposite frame of a satellite's solar panel array, or a miniaturized high-power RF circuit, these industries share …