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 44 for “"Signature analysis"”.
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Compositional models for mutational signature analysis
… even throughout tumour development. Mutational signatures were introduced as a proxy to quantify the number of mutations created by each mutational process. This thesis focuses on statistical methods for the analysis of such mutational signatures. Crucially, mutational signatures, in the type of …
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Analysis of parametric model signal processing techniques for signature analysis
… to the Fast Fourier Transform (FFT) for signature analyses involving short data records. The developments in signal processing that have lead to these techniques are reviewed. Mathematical definitions for parametric models are provided in terms of time-domain stochastic difference …
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On fault coverage and fault simulation for multiple signature analysis BIST schemes
… and fault simulation issues related to multiple signature analysis (MSA) built-in self-test (BIST) schemes are treated here. A model to predict the fault coverage is presented. Based on this model, the nature of the fault coverage for MSA is discussed. The fault coverage of MSA is a function of …
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Interpreting Predator – Prey Interactions in Cayuga Lake Fishes Using Fatty Acid Signature Analysis
… Cayuga Lake food web dynamics, fatty acid signatures (FAS) of lake trout (Salvelinus namaycush) were compared to two major prey species in the lake; alewife (Alosa pseudoharengus) and round goby (Neogobius melanostomus). The main objectives of the study were to assess FAS dissimilarity …
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Impact of pulse width modulation schemes In eccentricity fault detection using current signature analysis
… potential failure if undetected. Motor Current Signature Analysis (MCSA) is a widely used technique for diagnosing such faults, particularly in line-fed motors. However, the effectiveness of MCSA based on the modulation scheme employed in inverter-driven setup is underexplored. This thesis …
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Using Motor Electrical Signature Analysis to Determine the Mechanical Condition of Vane-Axial Fans
… in vane-axial fans using Motor Electrical Signature Analysis (MESA). The data was statistically analyzed to determine if the MESA systems could distinguish between baseline conditions and discrete fault frequencies for the three test conditions: bearing inner race defect, bearing outer race …
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Digital signature analysis of radar reflections for the assessment of concrete bridge deck deterioration
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1989.
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A method for determining elements for elemental signature analysis of groundwater and treated Lake Mead water
Elemental signature analysis (ESA) is a term that describes the use of the presence/absence or relative abundance of elements in samples. Several studies have been performed on the identification of these elemental signatures or fingerprints of water using inductively coupled plasma mass …
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Rapid molecular signature analysis of pseudomonas aeruginosa by direct nanomolar detection of quorum sensing and biomarker molecules at a boron-doped diamond electrode
… conventional analytical methods for the analysis and detection of P. aeruginosa QS signaling molecules exist. An overview of capillary electrophoresis (CE) and the boron-doped diamond (BDD) electrode are given. In this thesis, new approaches to separation and sensing these signaling …
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An expert system for self-testable hardware design
… such as pseudorandom pattern generators and signature analysis registers. In inserting BIST hardware, BIDES not only makes a circuit self-testable, but also incorporates the appropriate type of BIST structure so that a set of user-specified constraints on hardware overhead and testing time …
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Condition monitoring of induction motors in the nuclear power station environment
… with the main focus being on Motor Current Signature Analysis (MCSA) and the various methods associated with it. Three analysis methods were selected for further study, namely, Current Signature Analysis, Instantaneous Power Signature Analysis (IPSA) and Motor Square Current Signature …
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Mapping the Genomic Context of Mutagenesis
… successful approach is matrix-based mutational signature analysis, which identifies prototypical mutation patterns by applying non-negative matrix factorisation to catalogues of single nucleotide variants and other mutation types. However, mutagenesis is a multifaceted event that is affected by …
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A multi-indicator approach to dietary assessments within Lake Michigan's nearshore area
… structure for decades, while fatty acid signatures have only recently been used in terrestrial and marine systems to explore dietary trends. Using a data set collected from Lake Michigan throughout the 2010 intensive sampling year, I: 1) examined foraging patterns of juvenile yellow perch …
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Bearing failure detection in farm machinery using low-cost acoustic techniques
… monitoring using vibration and audio spectrum analysis can detect imminent bearing failures before dangerous situations develop. Current application of bearing condition monitoring using vibration signature analysis has focused on fixed industrial applications involving high cost equipment and …
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Polar Bear (Ursus Maritimus) Foraging Ecology in the Western Canadian Arctic
… This thesis used quantitative fatty acid signature analysis (QFASA) to estimate the diets, and adipose tissue lipid content to estimate the body condition, of polar bears in three western Canadian Arctic subpopulations: Northern Beaufort Sea, Southern Beaufort Sea, and Viscount Melville …
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Foreign object insertion in sexual homicide cases : an exploratory study
… an indicator of a sexual murder, or regarded for signature analysis purposes. Due to its rare occurrence it is often only documented in literature in case-study form. In this research seventeen cases of vaginal foreign object insertion were analysed, by far the largest study of this occurrence to …
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Transcriptomic and Secretomic Profiling of Isolated Leukocytes Exposed to Alpha-Particle and Photon Radiation - Applications in Biodosimetry
… could potentially be distinguished by aggregate-signature analysis. Although no distinct genes were sole indicators of exposure type, clustering algorithms and principal component analysis were able to demarcate radiation type with some success. By comparing the biological effects elicited by …
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