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 15 of 15 for “"Intensity Measure"”.
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Bayesian Methods for Intensity Measure and Ground Motion Selection in Performance-Based Earthquake Engineering
… by selecting appropriate ground motions and Intensity Measures (IM) for seismic analysis. This open-ended nature changes the quantified building performance depending upon the ground motions and IMs selected. So, improper ground motion and IM selection can lead to errors in structural …
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Stereological Interpretation of Rock Fracture Traces on Borehole Walls and Other Cylindrical Surfaces
… between the three-dimension fracture intensity measure, P32, and the lower dimension fracture intensity measures are studied. The analytical results show that the conversion factor between the three-dimension fracture intensity measure and the two-dimension intensity measure on …
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Speech analysis and synthesis using an auditory model
… patterns to form a nonlinear relative spectrum intensity measure. This measure is used to select specific dominant frequencies to reproduce the speech based on a synthesis-by-sinusoid approach. The resulting speech is found to be intelligible even when only a fraction of the original frequencies …
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Predicting earthquake casualty rates accounting for community vulnerability
… inventories. The regressions are conducted with intensity measure, socioeconomic, and environmental data that reflect the vulnerability of communities of interest. The dissertation uses regression approaches with zero-inflated techniques to fully consider the effect of the zero-casualty data …
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Extreme values of non-Gaussian fields
… field. More precisely, we prove that this random measure converges to a certain Poisson point process with random intensity measure. For both the sine-Gordon field and the $\textit{P}$($\phi$)$_{2}$ field, the main tool is a coupling result between the well-studied Gaussian free field and the …
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Affect Intensity and Perceptions of Arousal in a Subclinical Level of Psychopathy Termed Aberrant Self-Promotion
… this study was to answer questions about affect intensity and self-perceived arousal differences in aberrant self-promoters (ASPs) and in individuals high and low in affect intensity (AI). Participants in the study completed a task asking them to respond as quickly and accurately as possible to …
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Strategies for Seismic Assessment of Common Existing Reinforced Concrete Bridges Typologies
… in relation to the occurred earthquake seismic intensity; if the seismic intensity measure reaches a specific threshold, step 4 suggests how to perform visual inspections on bridges, under a probabilistic point of view, and to generate the damaged bridge fragility curves. After that, the last …
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Probabilistic seismic demand models of RC bridge columns retrofitted with shape memory alloy spirals
… vulnerable to failure under moderate and high intensity earthquakes. Recent studies have shown that retrofitting these vulnerable RC bridge columns by applying lateral active confinement using shape memory alloy (SMA) spirals can significantly improve their ductility, resulting in enhanced …
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Point processes in statistical mechanics : a cluster expansion approach
… which realizes randomly locally finite point measures. One of the main results of this thesis is an existence theorem for a new class of point processes with a so called signed Levy pseudo measure L, which is an extension of the class of infinitely divisible point processes. The construction …
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Mild solutions of SPDE's driven by Poisson noise in infinite dimensions and their dependence on initial conditions
… where q(dt,dy) is a compensated Poisson random measure associated to a stationary Poisson point process on a [sigma]-finite measure space (U,C,m), A is the generator of a strongly continuous semigroup, F is a measurable mapping from H to H, B is a measurable mapping from the product space HxU to …
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Seismic Vulnerability Assessment of As-Built and Retrofitted Multi-Frame Box-Girder Bridges
… level of damage for a given ground motion intensity measure. In this study, PGA and spectral acceleration at 1 second period (Sa (1.0)) were considered as intensity measures (IM). For a thorough and advanced assessment, uncertainties associated with the earthquake, structural geometries, …
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Application of Wavelet Transform to Endurance Time Analysis Method for Performance-based Seismic Design
… function is scaled progressively to various Intensity Measure (IM) levels, and at each level the largest Engineering Demand Parameter (EDP) is calculated. Analyzing structures using IDA is very computationally intensive and time consuming. The use of ETA in conjunction with the proper ETEF …
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Improved ground motion intensity measures for reliability-based demand analysis of structures
… Sa,avg (T1,…,Tn), as scalar ground motion Intensity Measure (IM) when assessing the seismic performance of inelastic structures. Since the interval of periods where computing Sa,avg is related to the more or less influence of higher vibration modes on the inelastic response, it is …
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Essays on health economics and development policies
… health environment, proxied by malaria intensity at the time of birth, on adult mortality rates. In chapter 3, I address the impacts of societal local institutions and policies on the determination of fertility rates during early industrial times in Britain and Ireland. Chapter 1: …
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Stochastic prediction of collapse of building structures under seismic excitations
… drift ratio (IDR) is often selected as the measure to represent the global behavior of structural system in the PBEE framework (Cornell et al., 2002). Likewise, assumed threshold values based on IDR or on slope of IDA curve between IDR and elastic spectral acceleration are most commonly used …