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 1097 for “"spatial resolution"”.
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Massive Star Formation at High Spatial Resolution
This thesis studies the early phases of massive stars and their impact on the surrounding. The capabilities of continuum radiative transfer (RT) codes to interpret the observations are also investigated. The main results of this work are: 1) Two massive star-forming regions are observed in the …
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Identifying chromatin interactions at high spatial resolution
… for identifying chromatin interactions at high spatial resolution from ChIA-PET data. We introduce SPROUT which is a hierarchical probabilistic model that discovers high confidence interactions between binding events that it accurately locates. We apply SPROUT to CTCF ChIA-PET data from mouse …
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Measurements of tactile spatial resolution of the fingertip.
Dept. of Mechanical, Automotive, and Materials Engineering. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis1986 .M267. Source: Masters Abstracts International, Volume: 40-07, page: . Thesis (M.A.Sc.)--University of Windsor (Canada), 1986.
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High Spatial Resolution Observations of Young Stellar Binaries
… a silicate absorption towards T Tau S and a spatially resolved spectrum of T Tau N are shown.
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Parameters affecting the spatial resolution of a superconducting solenoid
Thesis. 1978. B.S.--Massachusetts Institute of Technology. Dept. of Physics.
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Early Stages of Massive Star Formation at High Spatial Resolution
… stars and kinematics of UCHII regions at high spatial and spectral resolution. NIR-polarimetric maps of the reflection nebula that are generally found around these objects are used to rule out the presence of deeply embedded companions of a Young Stellar Object (S106) and to identify …
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High Spatial Resolution Measurement of Tendon Reinforcement in Underground Construction Works
… effort is the application of a particular high spatial resolution Rayleigh optical frequency domain reflectometer that is able to distinguish strain along a standard optical fiber at spatial increments as low as 0.65 millimeters. In applying this technology to reinforcement elements, the …
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Exploring Hyperspectral and Very High Spatial Resolution Imagery in Vegetation Characterization
… with a focus on hyperspectral and very high spatial resolution imagery. The new and innovative methods developed are: 1) integration of contribution theory into a model inversion approach to obtain high accuracy in canopy biophysical parameter estimation; 2) exploration and adoption of tree …
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Developing High Spatial Resolution MRI Methods for Characterisation of Porous Materials
In this thesis, high-resolution, quantitative 3D magnetic resonance imaging (MRI) methods are demonstrated to study the microstructure of, and fluid transport processes in porous rocks. A particular motivation of this work is to provide pore-scale, quantitative, spatially-resolved structural and …
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Understanding the Nuances of Transit Accessibility: Temporal and Spatial Resolution, and Neoliberalism
… to jobs via public transit are modeled at a fine spatial resolution in an exploratory analysis across several cities in the United States. Next, temporal and spatial resolution and their impacts on accessibility to jobs via public transit are analyzed and quantified in several cities across the …
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Digital phase tightening for improved spatial resolution in millimeter-wave imaging systems
… called digital phase tightening for improved spatial resolution. Digital phase tightening uses feedback and oversampling to accurately measure the amplitude and phase of an incoming signal. Furthermore, it can be implemented using only a delay-lock loop, an analog-to-digital converter, and a …
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A machine learning model of Manhattan air pollution at high spatial resolution
… was created to predict air pollution at high spatial resolution in Manhattan, New York using taxi trip data. Urban air pollution increases morbidity and mortality through respiratory and cardiovascular impacts, and understanding and predicting it is a significant public health challenge. A …
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Spatial Resolution of Equatorial Plasma Depletions Using Variable-Range Time-Delay Integration
… integration (TDI) algorithm be used to spatially resolve the two-dimensional images. The variable-range TDI algorithm corrects for each pixel moving at a different angular rate throughout image integration and transforms each raw image onto a surface where the spacecraft is moving at a …
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Trade-off analysis of accuracy and spatial resolution in strategic forest planning models
When large areas of forest are modelled, spatial detail can create excessively large databases and adversely affect the processing time. Spatial generalization can be an efficient means of aggregating polygons into blocks in strategic forest planning models. In this study, a sensitivity analysis on …
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Building Detection Using a Hybrid Methodology Applied to High Spatial Resolution Aerial Photographs
<p>Automatic building detection using high-spatial resolution satellite and digital aerial photography is an important aspect of geographic information science research. Accurate methodologies can provide scientists with the building information that can be broadly applied in various applications, …
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Spatial Resolution Analysis of a Variable Resolution X-ray Cone-beam Computed Tomography System
… and implemented that can adaptively provide high resolution CT images for objects of different sizes. The new system, called Variable Resolution X-ray Cone-beam CT (VRX-CBCT) uses a CsI-based amorphous silicon flat panel detector (FPD) that can tilt about its horizontal (<em>u</em>) axis and …
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Mapping mixed and fragmented forest associations with high spatial resolution satellite imagery : capabilities and caveats
… information is desired. Recently available high spatial resolution satellite imagery may be well suited to mapping fine-scale components of ecosystems, however, this remains an area of ongoing research. The first goal of this thesis was to assess the capacity of high spatial resolution satellite …
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Urban land cover mapping using medium spatial resolution satellite imageries: effectiveness of Decision Tree Classifier
… the extraction of urban layer by means of medium spatial resolution Landsat data processing; Decision Tree classifier was investigated as classification techniques, thus it allows to extract rules that can be later applied to different scenes. In particular, the aim was to evaluate which steps to …
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Quantitative Materials Contrast at High Spatial Resolution With a Novel Near-Field Scanning Microwave Microscope
… contrast. The materials contrast is shown in spatial variations on the surface of metal thin films, Boron-doped Semiconductor and Colossal Magneto-Resistive (CMR) thin films. The height dependence of the contrast shows sensitivity to nano-meter sized features when the tip-to-sample separation …
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Theoretical and Experimental Evaluation of Spatial Resolution in a Variable Resolution X-Ray Computed Tomography Scanner
<p>A variable resolution x-ray (VRX) computed tomography (CT) scanner can image objects of various sizes with greatly improved spatial resolution. The scanner employs an angulated discrete detector and achieves the resolution boost by matching the detector angulation to the scanner field of view …
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