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 55 for “"SWIR"”.
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Development of a Multispectral VIS-SWIR Imaging Modality for Cutaneous Water Assessment
… reflectance imaging in the short-wave infrared (SWIR) spectrum is an effective method for quantitatively mapping relative cutaneous fluid content. Unlike the visible and near infrared spectra, the SWIR spectrum exhibits strong water absorption and relatively weak melanin absorption. Therefore, …
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Next generation near infrared (NIR) and shortwave infrared (SWIR) wearables for breast cancer imaging
… uses near or shortwave infrared (NIR or SWIR) light to illuminate tissue, and detects multiply-scattered photons. However, bulky instrumentation and complicated imaging procedures have limited the clinical adoption of this technology. Furthermore, measured biomarkers including oxy- and …
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Shortwave infrared imaging and its translation to clinically-relevant designs
… clinical relevance. Using shortwave infrared (SWIR) light enables imaging with high resolution, high sensitivity, and sufficient penetration depth to noninvasively interrogate sub-surface tissue features. However, the clinical potential of this approach has been largely unexplored. Until …
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Syntheses of biocompatible luminescent nanocrystals for visible and short-wave infrared imaging applications
… for visible and short-wave infrared (1-2 [mu]m, SWIR) imaging applications. Quantum dots (QDs) have been promising fluorescent probes for biomedical imaging due to their high quantum yield (QY), narrow photoluminescence spectra, and excellent photostability. However, challenges remain to be …
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Experimental and Computational Methods for Shortwave Infrared Imaging
… (NIR, 700-900 nm) and shortwave infrared (SWIR, 900-1700 nm) autofluorescence imaging. NIR/ SWIR imaging makes use of recently developed, high-sensitivity cameras, and relatively low en-ergy NIR excitation, which is less destructive to and penetrates deeper through biological tissue than …
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Development of polymeric quantum dot ligands for biological imaging in the short-wave infrared
The short-wave infrared region (SWIR; 1000-2000 nm) has excellent properties for in vivo imaging: low autofluorescence, reduced scattering, and little light absorption by blood and tissue. However, broad adoption of SWIR imaging in biomedical research is hampered by the availability of versatile …
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Interactions between mantle plumes and mid-ocean ridges : constraints from geophysics, geochemistry, and geodynamical modeling
… highly-segmented Southwest Indian Ridge (SWIR). Gravity data indicate that both Marion and Bouvet impart high-amplitude mantle Bouguer anomaly lows to the ridge axis, and suggest that long-offset transforms may diminish along-axis plume flow. Building upon this observation, Chapter 2 …
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Volcanology from space: applications of infrared remote sensing
… Data from the two short wavelength infrared (SWIR) bands of the Landsat Thematic Mapper (TM) are used to constrain sizes and temperatures of subpixel resolution hot spots. Analysis of a 1989 TM scene of Lonquimay volcano suggests a cooling from 250 to 170°C of the crust of an active lava flow …
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Development of in-situ radiometric inspection methods for quality assurance in laser powder bed fusion
… Spectroscopy (OES) and Short-Wave Infrared (SWIR) imaging radiometric inspection methods that infer the final material state in LPBF. The instruments’ signals are correlated with bulk and local part properties to evaluate prediction capabilities. A probability framework defines the SWIR …
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Interactions between mantle plumes and mid-ocean ridges : constraints from geophysics, geochemistry, and geodynamical modeling
… highly-segmented Southwest Indian Ridge (SWIR). Gravity data indicate that both Marion and Bouvet impart high-amplitude mantle Bouguer anomaly lows to the ridge axis, and suggest that long-offset transforms may diminish along-axis plume flow. Building upon this observation, Chapter 2 …
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Crustal accretion and evolution at slow and ultra-slow spreading mid-ocean ridges
… the ultra-slow spreading Southwest Indian Ridge (SWIR) (full rate, 14 km/Myr). Seismic refraction data collected along the rift valley and flanking rift mountains of the OH-l segment (35°N) at the MAR show that the entire crustal section is constructed within a zone that is less than 5 km wide. …
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Applying Rotation-Equivariant Deep Learning to Cloud and Road Segmentation in Satellite and Aerial Imagery
… infrared (LWIR), and short-wave infrared (SWIR) imagery for on-orbit cloud detection. Rotation-equivariant deep learning models are equivariant to rotations, meaning that when an input to the model is rotated, the model output will be equivalently rotated. We compare rotation-equivariant …
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Design and Development of Advanced Adaptive Polymer Lenses
… for visible, short- wavelength infrared (SWIR), and middle-wavelength infrared (MWIR)applications. The lenses are implemented in a variety of tactical imaging systems to demonstrate their performance. A process was developed that defines the allowable fabrication variables, first for APL …
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Engineering Nanocrystal Devices Through Cation Exchange And Surface Modifications
… NC device design to achieve shortwave infrared (SWIR) photodetection. We build photo FETs with CdSe NCs by surface modification to introduce In doping. We achieve strong quantum confinement in high mobility CdSe NC thin films, which we hypothesize makes intra sub-band transitions possible and …
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The Effects of Amphibole- and Sulfide-Producing Melts on Crustal Strength in Gabbros of Lower Oceanic Crust in Oceanic Core Complexes, Mid-Atlantic and Southwest Indian Ridges
… the ultraslow spreading Southwest Indian Ridge (SWIR). Dikelets are a texture found in thin section samples from these systems that form as a result of crystal-plastic deformation. Thin section samples from the Atlantis Massif, MARK Area, and 13˚-15˚ North of the MAR and the Atlantis Bank of the …
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Plagioclase preferred orientation in layered mylonites : evaluation of flow laws for the lower crust
… were collected from the Southwest Indian Ridge (SWIR), ODP Hole 735B. Deformation temperatures are constrained by two-pyroxene thermometry, stress is estimated from grain size, and deformation mechanisms are analyzed by microstructure and the presence or absence of a lattice preferred orientation …
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Plagioclase preferred orientation in the layered mylonites : evaluation of flow laws for the lower crust
… were collected from the Southwest Indian Ridge (SWIR), ODP Hole 735B. Deformation temperatures are constrained by two-pyroxene thermometry, stress is estimated from grain size, and deformation mechanisms are analyzed by microstructure and the presence or absence of a lattice preferred orientation …
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The Impact of Fe-Ti Oxide Concentration on the Structural Ridgity of the Lower Oceanic Crust, Atlantis Bank, Southwest Indian Ridge
… from Atlantis Bank, Southwest Indian Ridge (SWIR). Atlantis Bank is an oceanic core complex that formed through the exhumation of lower oceanic crust along a detachment fault. OCCs form along slow-spreading ridges and are characterized by the complex interactions between magmatism and …
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The upper ocean structure of the Antarctic circumpolar current in the vicinity of the South-West Indian ridge
… situated within the South-West Indian Ridge (SWIR). The fracture zone, formally called the Andrew Bain fracture zone (ABFZ), is centred at 50°S;30°E. The main focus of this investigation, which was strategically located around the ABFZ, was to study the dynamics and the structural modification …
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Modeling Errors in Biometric Surveillance and De-duplication Systems
… operating in the thermal or shortwave infrared (SWIR) spectrum. In this regard, a new gait representation scheme known as Gait Curves is developed and evaluated on thermal and SWIR data. Finally, a clustering scheme is used to demonstrate that gait patterns can be clustered into multiple …
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