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 16 of 16 for “"infrared thermal imaging"”.
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Graphene for radio frequency electronics and infrared thermal imaging
… this thesis involves exploring graphene as a new infrared photoactive and thermally sensitive material for sensors in the IR spectrum (80 meV < Eph < 250 meV), which have applications ranging from thermography and night vision systems to nanoscale chemical spectroscopy. In this thesis, we will …
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The role of infrared thermal imaging in the assessment of chronic midportion Achilles tendinopathy
Infrared thermal imaging cameras (IRC) are non-contact devices that allow the capture of radiation presented in the form of colour-coded images, therefore they may provide an effective method of assessment for chronic midportion Achilles tendinopathy. Some of the features of the condition point …
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Kiosks for Non-Contact Vital Sign Detection
… this implementation, it is instrumented with an infrared thermal imaging camera, FMCW radar sensors, motion and height detection, and ambient climate sensors. The kiosk collects body temperature data and radar-based chest displacement data for offline processing. The algorithms described here …
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Infrared imaging: a proposed validation technique for computational fluid dynamics codes used in STOVL applications
… has led to research efforts to apply infrared thermal imaging techniques to visualize gaseous flow fields. Specifically, a heated, free-jet test facility was constructed. The gaseous flow field of the jet exhaust was characterized using an infrared imaging technique in the 2 to 5.6μm …
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Development of the capability of testing the accuracy of thermal CAD software for electronic circuit design
… a quantitative method for effectively evaluating thermal design software. Surface operating temperatures were measured and predicted for an operating hybrid circuit. The temperatures were measured using an infrared thermal imaging system, which measures surface temperatures by detecting the …
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Implementation of Infrared Non-Destructive Evaluation in Fiber-Reinforced Polymer Bouble-Web I-Beams
… needs to be assessed. The principal underlying infrared thermal imaging (IR) nondestructive evaluation (NDE) is to induce a thermal gradient in the beam through heating and monitor how it changes. Delaminations determined by others to be the critical form of deterioration, would be expected to …
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Thermal analysis of power hybrid microelectronic packages
… a simplified nondimensional approach for the thermal analysis of power hybrid circuits is presented. The new technique uses only the metallization and the substrate as layers and represents everything below the substrate by an external thermal resistance (expressed as an equivalent convective …
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Heat Transfer and Flow Measurements on a One-Scale Gas Turbine Can Combustor Model
… using two identical surface heaters, and the Infrared Thermal Imaging system was used to capture the real-time steady-state temperature distribution at the combustor liner wall. Analysis on the flow characteristics was also performed to compare the pressure distributions with the heat transfer …
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The effect of work related mechanical stress on the peripheral temperature of the hand
… that are associated with vascular challenge. Infrared thermal imaging was used to monitor the temperature changes using a well defined capture protocol. Normal reference values have been measured and a computational tool used to facilitate the process and standardise image processing. These …
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Rapid Classification of Imaged Objects Using Molecular Factor and Multivariate Optical Computing
… Our lab has focused on the design of imaging systems based on molecular factor and multivariate optical computing. A simulation-driven design approach was utilized to develop a multimode infrared imaging system for chemical contrast enhancement. This infrared thermal imaging system is …
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Multi-spectrum retrieval of maps of Venus' surface emissivity in the infrared
… the derivation of surface emissivity data in the infrared from radiance measurements of Venus. Since these data are diagnostic of the chemical composition and grain size of the surface material, they can help to improve knowledge of the planet’s geology. Spectrally resolved images of nightside …
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Heat Transfer and Flow Characteristic Study in a Low Emission Annular Combustor
… simulated with a cold flow and heated walls. An infrared camera was used to obtain the temperature distribution along the liner wall. Experimentally measured pressure distributions were compared with the heat transfer results. The experiment was conducted at various Reynolds Numbers to …
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Thermally-assisted frontal polymerization for rapid curing of fiber-reinforced polymer composites
… produced composites, are greatly affected by the thermal properties of the tooling materials, where lower front temperatures and degree of cure are measured for composite panels manufactured using thermally conductive tooling materials such as aluminum. This issue can be effectively addressed by …
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Heat Transfer and Flow Measurements in Gas Turbine Engine Can and Annular Combustors
A comparison study between axial and radial swirler performance in a gas turbine can combustor was conducted by investigating the correlation between combustor flow field geometry and convective heat transfer at cold flow conditions for Reynolds numbers of 50,000 and 80,000. Flow velocities were …
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Behavior and Physiological Responses of Livestock Under Different Grazing Systems
… were collected for each heifer using an infrared thermal imaging camera. In 2020, heifers that grazed NE tall fescue had greater (P = 0.0160) ADG over the season (0.22 vs. 0.12 kg day-1). Hair retention score was greater (P = 0.0029) for heifers that grazed WE tall fescue compared to …