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.
Results
Showing 1 to 20 of 86 for “"Spatiotemporal Resolution"”.
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Reconstruction of multiple climate variables at high spatiotemporal resolution based on Big Earth data platform
… of climate variables with high spatio-temporal resolution is important when the meteorological observations required for environmental monitoring and modelling do not cover the study area. In addition, climate model reanalysis datasets suffer from coarse spatio-temporal resolutions, which fails …
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Wireless Sub-Cellular Sized Stimulators for Minimally Invasive Deep Brain Stimulation with High Spatiotemporal Resolution
Deep brain stimulation (DBS) has become a mainstream treatment for motor disorders associated with neurodegenerative conditions such as Parkinson’s disease (PD). The DBS device, often called the “pacemaker for the brain”, utilizes surgically implanted leads with 4-8 contacts points into the …
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Enhancing spatiotemporal resolution in probabilistic risk assessment of nuclear power plants: theoretical foundations and methodological developments
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-05-01
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Shedding light on the molecular interactomes of fast, complex biological processes using multispectral imaging with uncompromised spatiotemporal resolution
… have enabled the field to shed light on the spatiotemporal nature of fundamental intracellular processes. However, despite these advances, due to the broad emission spectra of conventional fluorophores only three or fewer fluorescently-labelled structures can be observed in live cells using …
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A microfluidic silicon nanodialysis platform with in-channel electrochemistry for analyte sampling, timestamping and detection at high spatiotemporal resolution
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2026-08-01
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Dynamic speech imaging with low-rank approximation
… However, conventional MRI suffers from low spatiotemporal resolution, which limits its applica-tion in dynamic speech imaging. This thesis presents a novel model-based dynamic MR imaging method to capture speech dynamics in high spatiotemporal resolution. Specifically, high spatiotemporal …
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Dynamic Chemical Shift Imaging For Image-Guided Thermal Therapy
… it facilitates temperature mapping with high spatiotemporal resolution. Chemical shift imaging (CSI) techniques can provide the PRF directly with high sensitivity to temperature changes while minimizing artifacts commonly seen in CPD techniques. However, CSI techniques are currently limited by …
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Spatiotemporal brain imaging and modeling
… brain activities at high spatial and temporal resolutions. Quantitative modeling of these data is needed to understand how large-scale distributed neuronal interactions underlying perceptual, cognitive, and behavioral functions emerge and change over time. This thesis explores hardware …
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Design and fabrication of porcine crystal ribcage for high resolution ex vivo imaging
… help drain extra liquid from the lungs [1]. High spatiotemporal resolution imaging is needed to probe the physiological effect of orientation in real-time while preserving the complex 3D architecture of the native lung. Current imaging solutions like MRI and CT provide only temporal resolution [2] …
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Dynamic Imaging by Motion Estimation
… method is effective in generating images of high spatiotemporal resolution from a time-varying object with periodic or quasi-periodic motion. Specifically, it has been shown that the proposed method can handle complex signal variations with localized motion, nonrigid-body motion, and motion in …
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Flexible Radial Data Acquisition and Image Reconstruction Strategies for Breast Magnetic Resonance Imaging
… be improved by acquiring images of high spatial resolution for visualizing morphological features of tumours and those of high temporal resolution for characterizing contrast-kinetic curves. However, simultaneously achieving high spatial and temporal resolution is limited by the inherent …
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Investigating Aerosol Composition with Low Cost Optical Particle Counters
… produce very high quality data, but have low spatiotemporal resolution and a high cost. This work explores a novel method to generate basic compositional data for ambient PM with low-cost, easily deployable apparatuses in concert with a simple fully connected neural net. Simulated effects of …
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LisNRs : a novel class of liposomal contrast agents for molecular MRI
… of large volumes of deep tissue with high spatiotemporal resolution. Paramagnetic molecular sensors enable detection of molecular phenomena with MRI (molecular MRI). The scope of molecular MRI experiments thus far, however, has been limited by the modest sensitivity and signal changes …
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Developing in situ instrumentation to monitor anthropogenic change
… and analyzed for these parameters, their limited spatiotemporal resolution constrains scientific inquiry. To help fill the technological gap, this dissertation presents the development of instrumentation for the ocean inorganic carbon system and microplastics. The first few chapters present the …
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Developing In Situ Instrumentation to Monitor Anthropogenic Change
… and analyzed for these parameters, their limited spatiotemporal resolution constrains scientific inquiry. To help fill the technological gap, this dissertation presents the development of instrumentation for the ocean inorganic carbon system and microplastics. The first few chapters present the …
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Development of Quantitative Molecular Photoacoustic Imaging For Noninvasive Cancer Diagnostics
… suffers from inherent limitations, such as poor spatiotemporal resolution, poor depth penetration, or high regulation from the use of ionizing radiation. To overcome these challenges, photoacoustic (PA) imaging is being investigated due to its sensitivity to nano-sized optical contrast at …
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Graphene Brain on a Chip Platform for the Study of Neurodegeneration
… calcium imaging, electrophysiology, and super-resolution imaging data obtained, and a physiologically relevant application for the graphene MEAs in neurodegeneration research. The fabricated devices demonstrated a higher spatiotemporal resolution and lower impedance than commercially available …
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LINEAR AND NONLINEAR FLUORESCENCE LIFETIME IMAGING FOR BIOSENSING APPLICATIONS
… This technique will not only provide high spatiotemporal resolution of sensing output but also for the first time, realize real-time biosensing in live intact single cell within 2 D culture, 3D culture and in-vivo animal model, zebrafish.
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A Geospatial and Machine Learning Framework for Forecasting Ground Level Ozone Pollution
… citizens have access to high accuracy, high-resolution forecasts of their local area. Recently, advancements in computing power have made it possible to apply artificial intelligence (AI) techniques to a variety of big data modelling problems, including GLO forecasting and estimation. Of …
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High-resolution full-vocal-tract dynamic speech magnetic resonance imaging
… in imaging speed, spatial coverage, spatial resolution and clinical interpretation. In particular, high-resolution dynamic speech MRI with full-vocal-tract coverage and phonetically meaningful interpretation remains a challenging goal for many speech researchers. This dissertation develops …
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