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 1692 for “"SCAN"”.
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3D Scan Campaign Classification with Representative Training Scan Selection
… been shown to effectively classify points in 3D scans, and can accelerate manual tasks like the removal of unwanted points from cultural heritage scans. However, a classifier’s performance depends on which classifier and feature set is used, and choosing these is difficult since previous …
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Electronic scan weather radar: scan strategy and signal processing for volume targets
… With its superior capability for rapidly scanning the atmosphere, electronically scanned phased array radar (PAR) is a potential candidate. A network of such radars has been recommended for consideration by the National Academies Committee on Weather Radar Technology beyond NEXRAD. While …
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Rapid-Scan EPR and Imaging
… have been studied. Developments in rapid scan imaging techniques are reported that improve efficiency of experiments and user-friendliness of software.</p> <p>Relaxation and signal-to-noise ratio (S/N) in pulse experiments on trityl radicals were measured at frequencies between 400 MHz and …
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X-Band Rapid-Scan EPR
<p>The advantages of rapid-scan EPR relative to CW and pulse techniques for samples with long longitudinal relaxation time T<sub>1</sub> (N<sub>s</sub><sup>0</sup> defects in diamond, N@C<sub>60</sub>, and amorphous hydrogenated silicon), heterogeneous samples (crystalline 1:1 …
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The Brain Scan as Ideograph
… These images are colloquially called “brain scans.” Through journalism and mass dissemination online, brain scans have become an example of Michael Calvin McGee’s “ideograph,” a language term that subtly takes on outsized political and symbolic meaning to enforce state power. In conversation …
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Digital scan to enhance patient education
… was to evaluate if the use of a 3D intraoral scan as a visual aid improves a patient’s communication self-efficacy and risk-literacy concerning their periodontal disease status.</p> <p>Methods: This study used a parallel experimental research design and collected quantitative data through a …
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A reconfigurable shared scan-in architecture
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2003.
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Variation in Computerized Tomography Scan Utilization
… use of expensive imaging procedures, such as CT scans, was significantly increasing for the past few years. However, the increased number of CT scans may not help to improve quality of care. No studies are conducted on investigate geographic variation on CT scan usage rate. This research is the …
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SCAN : a statistic code analyser for JavaScheme
Thesis (S.B. and M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1999.
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Line scan proton magnetic resonance spectroscopic imaging
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1995.
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Registration and variability of side scan sonar imagery
… results of several experiments performed on side scan sonar equipment and imagery with the aim of characterizing the acoustic variability of side scan sonar imagery and applying this information to image rectification and registration. A static test tank experiment is presented which analyzes the …
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Scan test data compression using alternate Huffman coding
… This makes Huffman coding not ideal for use in scan data compression. Selectively encoding test data using Huffman coding can provide similarly high compression rates while reducing the complexity of the decoder. A smaller and less complex decoder makes Alternate Huffman Coding a viable option …
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Side scan sonar image formation, restoration and modelling.
… first part the statistical properties of side scan sonar images are analysed. Then, based on this analysis, a Maximum A Posteriori (MAP) formulation of the sonar image restoration problem is proposed. The aim of the restoration being to remove degradations such as speckle, blur and noise from …
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Effect of scan time on resting state parameters
… studies can focus on determining the minimum scanner time using similar analysis for different physiological states of the brain.
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SCAN: ΜΙΑ ΓΛΩΣΣΑ ΓΙΑ ΑΚΟΛΟΥΘΙΑΚΗ ΠΡΟΣΠΕΛΑΣΗ ΔΙΔΙΑΣΤΑΤΩΝ ΔΕΔΟΜΕΝΩΝ
… OF A NEW, SPECIAL PURPOSE LANGUAGE, CALLED SCAN LANGUAGE. THE DEVELOPMENT OF SCAN PROVIDES AN EFFICIENT APPROACH TO THE FOLLOWING PROBLEM: "GIVEN AN IMAGE ARRAY P OFNXN ELEMENTS, DEVELOP A TOOL WHICH CAN DESCRIBE AND PRODUCE ALL POSSIBLE SCANNING SEQUENCES OF P (THAT IS (N2)! DIFFERENT …
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Dinitroxides in Rapid Scan Electron Paramagnetic Resonance Imaging
… in understanding disease behavior. Rapid Scan (RS) electron paramagnetic resonance (EPR) offers a unique, non-invasive tool for investigation of these so-called microenvironments through EPR Imaging (EPRI). Research into advancement of EPRI falls into many categories. Not least among those …
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An electronically focused multiple beam side scan sonar
… of the beam forming system. High resolution side scan sonar systems have many operational parameters that may only be extended with the aid of phased arrays, the resolution and the imaging rate being the most important. This thesis describes a microprocessor controlled dynamically focused side …
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High level behavioural modelling of boundary scan architecture.
… the integration of the IEEE 1149.1/JTAG Boundary Scan Test Architecture automatically into an ASIC (Application Specific Integrated Circuit) design. The tool requires the original design (the ASIC) to be described in VHDL-IEEE 1076 Hardware Description Language. The tool consists of the two major …
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Search theory applied to parameter scan optimization problems
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1961.
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Path Planning for Trajectory Guided Freehand Ultrasound Scan
… 3D voxel grid. After the user performs initial scan, the system guides the user to find missing areas shaded by obstacles such as bones, resulting in more accurate, detailed, and efficient 3D ultrasound imaging. We validated our system on an ultrasound phantom and demonstrated its ability to …
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