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 14 of 14 for “"Temperature mapping"”.
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Autonomous Small Scale Data-logger for Temperature Mapping
… and validation of a low cost small scale temperature data-logger used as a monitoring system for automated applications. The proposed system is battery powered and packaged in a manner able to operate in temperatures up to 100oC, with exposure to chemicals such as Isopropyl Alcohol, …
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Temperature Mapping using Mid-Field Magnetic Resonance Imaging
… soft tissue contrast and sensitivity to tissue temperature. MRI use is growing in Canada with expectation that this is expected to continue in the medium term, with more wide adoption of MRI and in particular a renewed focus on MR systems which deviate from the most commonly used 1.5T field …
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Self-Diffusion and Temperature Mapping of Food Materials Using MRI
… chemical composition, internal structure, and temperature of foods. Studying self-diffusion noninvasively using magnetic resonance imaging (MRI) techniques is useful for understanding dynamic phenomena which occur during food processing. The overall objective of this study was to measure the …
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Feedback Control of Phased Array Electromagnetic Hyperthermia Using MRI Temperature Mapping
… technique is presented that allows noninvasive mapping of the relative phase patterns of the microwave fields inside a phantom. (3) An MRI-based technique is presented for closed loop spatial steering of the hot spot in a phased array system. (4) Noninvasive techniques are demonstrated that …
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Temperature mapping of particles during aseptic processing via magnetic resonance imaging
… Magnetic Resonance Imaging (MRI) techniques for temperature measurement of particles undergoing aseptic processing were studied. A variable flip angle gradient echo sequence was initially tested. With this sequence T1 maps were obtained from two images acquired in sequence with a total imaging …
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Weighting Landsat Digital Data According to Land Cover Emissivity for Surface Temperature Mapping
… accurate data concerning land use/land cover and temperature gradients for informed decision making. Remotely-sensed data provide a method for acquiring such information in a dependable and efficient manner. Regular data acquisition and a synoptic view make the Landsat Thematic Mapper (TM) an …
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Analytical method for turbine blade temperature mapping to estimate a pyrometer input signal
… is to develop a method to estimate local blade temperatures in a gas turbine for comparison with the output signal of an experimental pyrometer. The goal of the method is to provide a temperature measurement benchmark based on a knowledge of blade geometry and engine operating conditions. A …
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MRI temperature mapping and finite element modeling of heat transfer in carrot particulates undergoing thermal processing
… magnetic resonance imaging to measure the temperature inside foods during heating. First, a steady state temperature gradient was applied to a model food gel. The T$\sb1$ temperature dependence for the gel was determined. A two dimensional Fourier transform spin echo imaging sequence was …
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Dynamic Chemical Shift Imaging For Image-Guided Thermal Therapy
Magnetic resonance temperature imaging (MRTI) is recognized as a noninvasive means to provide temperature imaging for guidance in thermal therapies. The most common method of estimating temperature changes in the body using MR is by measuring the water proton resonant frequency (PRF) shift. …
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Verification of the <i>Ex Vivo</i> Thiel Embalmed Model for Liver Treatment with Magnetic Resonance-guided Focused Ultrasound (MRgFUS) before Clinical Practice
… Thermometry. Thermometry can provide real-time temperature feedback and temperature maps indicating the ablated area. Despite considerable research on liver treatment with MRgFUS, developing a repeatable, safe and efficient ex vivo liver model has not been achieved. The Thiel embalmed model is …
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Assessing Topside Thermal Solutions for Hot Spot Management of Micro-Scale Electronics
… The approach simulates the physics of the temperature mapping technique in order to highlight the source and severity of the volumetric average based on stack thermal emission and optical analysis. These simulations provide a means of removing the measurement averages via a bottom up …
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Integrated microfluidics, heaters, and electronic sensors for Lab-on-a-Chip applications
… of reagents over different thermally isolated temperature zones, to be coupled with the field effect sensing capabilities, for label-free detection of biomolecules such as DNA. The microfluidic valves provide control over reagent flow, and flow rates of up to 1.8nLs⁻¹ have been demonstrated …
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Blast Resilience of Glazed Façades: Towards a New Understanding of the Post-Fracture Behaviour of Laminated Glass
… four-point bending tests are performed at low temperature on specimens pre-fractured before testing. The pre-fracture ensures controlled and repeatable fracture patterns, and the low temperature simulates the effects of the high strain-rates that result from short-duration blast loads by taking …