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 20 of 214 for “"thermal resistance"”.
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Superconducting rotor with high thermal-resistance torque transfer mechanism
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2023-12-01
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Two-dimensional Mapping of Interface Thermal Resistance by Transient Thermal Impedance Measurement
Interconnects in power module result in thermal interfaces. The thermal interfaces degrade under thermal cycling, or chemical loading. Moreover, the reliability of thermal interfaces can be especially problematic when the interconnecting area is large, which increases its predisposition to generate …
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The Effects of Solutes on the Thermal Resistance of Staphylococcus Aureus Mf-31
Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs
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Prediction and mitigation strategies for the transient thermal performance of low thermal resistance microchannel evaporators
… flow boiling heat transfer offers an effective thermal management solution for high heat flux microelectronic devices such as laser diodes. The high heat transfer rates, nearly isothermal flow conditions, high surface area-to-volume ratios, and lower required pumping powers facilitate smaller …
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Modeling for thermal resistance of non-O157 shiga toxin producing Escherichia coli in ground beef
… as an adulterant in meat products. The thermal behavior these non-O157 STECs was studied in laboratory media as well as in ground beef with varying fat content. There was no significant difference in the heat resistance among the strains, therefore, a cocktail of the strains was used for …
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Molecular Crosslinking of Calcium-Silicate-Hydrate with Organosilanes: Toward Engineering of Cementitious Matrices with High Thermal Resistance
… of a novel approach aiming at improving the thermal resistance of cementitious matrices. The proposed approach utilizes the molecular scale crosslinking phenomena in which the galleries of inorganic calcium-silicate-hydrate (C-S-H), the main product of cement hydration, are directly bridged …
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Studies on Thermally Induced Changes in the Bacterial Endospore and on the Relationship of Its Chemical Composition to Thermal Resistance
Made available in DSpace on 2014-12-05T19:06:46Z (GMT). No. of bitstreams: 1 5902033.pdf: 4454803 bytes, checksum: 98fc9a68d7fb32d2606b288d288ff4ce (MD5) Previous issue date: 1959
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Modelling and simulation of themo-mechanical phenomena at the friction interface of a disc brake.An empirically-based finite element model for the fundamental investigation of factors that influence the interface thermal resistance at the friction interface of a high energy sliding pair in a disc brake.
… (ITL), which has been modelled as an equivalent thermal resistance value based on its thickness and thermal conductivity. The interface real contact area was also an important parameter in this investigation, and it has been found to affect heat partitioning by adding its own thermal resistance. …
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The Development of an Accelerated Testing Facility for the Study of Deposits in Land-Based Gas Turbine Engines
… in an effort to characterize the change in thermal resistance on the surface of turbine blades as deposits accumulate. The facility was designed to produce turbine deposits in a 4-hour test that would simulate 10,000 hours of turbine operation. This is accomplished by matching the net …
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Air flow in a high aspect ratio heat sink
… in heat sinking technology: reductions in thermal resistance and required pumping power are necessary. This research covers the development of a novel type of air-cooled heat sink, in particular the air flow through such a heat sink. The research is carried out through theory, computation, …
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Carbon nanotube thermal interfaces and related applications
<p>The development of thermal interface materials (TIMs) is necessitated by the temperature drop across interfacing materials arising from macro and microscopic irregularities of their surfaces that constricts heat through small contact regions as well as mismatches in their thermal properties. …
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A Study of Heat Transfer Through Periodically Contacting Surfaces
… separated. The effects of frequency of contact, thermal contact resistance offered by the interface during the period of contact and the ratio of contact time: periodic time of the cycle on the average thermal resistance of the system were explored theoretically. The results of this study are …
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Computational and Experimental Modeling of the Bioheat Transfer Process of Perfusion in Tissue Applied to Burn Wounds
… measurements to estimate blood perfusion and thermal resistance in living tissue. Dynamic thermal measurements collected at the surface of the sensor before and after imposing a dynamic thermal cooling event are used with the model to estimate the blood perfusion, thermal resistance and core …
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Impacts of low-water activity food type on inactivation kinetics and models of foodborne pathogens treated with low-temperature, vacuum-assisted steam processing
… of such treatments, and studying the thermal resistances of two E. coli strains in low-water activity solutions. Low-temperature, vacuum-assisted steam (vacuum-steam) was evaluated as a potential intervention and preventive control to remove pathogens from the surface of LWAF without …
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Oscillating Heat Pipe Performance with Evaporator Section Modifications
… smaller has led to an increasing problem with thermal management. Thermal management ensures that the component operating temperatures are within a safe range, which maintains performance and improves reliability and lifespan. Traditional thermal management devices, such as the extruded-fin …
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Packaging designs for ultraviolet light emitting diodes
… emission wavelength. With this regard, effective thermal management in these devices depends on the removal of this heat and reduction of the junction temperature. This is achieved by decreasing the package thermal resistance from junction-to-air with cost-effective solutions. The use of heat …
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Performance Characterization of Recycled Asphalt Pavements with Warm Mix Asphalt Technologies
… designed mixtures were evaluated for moisture resistance, dynamic modulus, rutting resistance and thermal resistance behavior. Moisture resistance of the mixtures were evaluated by performing the indirect tensile strength test for 0 and 1 freeze-thaw cycles. Resistance to rutting was evaluated …
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Development of an air-cooled, loop-type heat pipe with multiple condensers
Thermal management challenges are prevalent in various applications ranging from consumer electronics to high performance computing systems. Heat pipes are capillary-pumped devices that take advantage of the latent heat of vaporization of a working fluid to achieve low thermal resistance (~0.1 …
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Fabrication and characterization of VCSEL based smart pixels
… bonding techniques. The electrical, optical and thermal characteristics of the bonded VCSEL arrays were measured in order to evaluate these bonding techniques. The functionality of the smart pixels with bonded VCSELs was also demonstrated. The measured threshold voltage of the bonded VCSEL is as …
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Molecular Dynamics Studies of Thin-Film Evaporation: The Effect of Graphene-Coated Silicon on Water Evaporation Behavior
… understand the relationship between interfacial thermal resistance, surface wettability, and thin-film evaporation behavior. In this study, non-equilibrium molecular dynamics simulations are used to study mass and heat transfer in thin-film evaporation of water on a silicon substrate, and …
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