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Physical Sciences and Mathematics Commons™
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- Pure sciences (2)
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- Deep Foundations (1)
- Driven Piles (1)
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- Reliability Analysis in Geotechnical Engineering (1)
- Reliability-Based Design and Acceptance Protocol for Driven Piles (1)
- Structural breaks (1)
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Articles 1 - 3 of 3
Full-Text Articles in Physical Sciences and Mathematics
Reliability-Based Design And Acceptance Protocol For Driven Piles, Joseph Jabo
Reliability-Based Design And Acceptance Protocol For Driven Piles, Joseph Jabo
Graduate Theses and Dissertations
The current use of the Arkansas Standard Specifications for Highway Construction Manuals (2003, 2014) for driven pile foundations faces various limitations which result in designs of questionable reliability. These specifications are based on the Allowable Stress Design method (ASD), cover a wide range of uncertainties, do not take into account pile and soil types, and were developed for general use. To overcome these challenges it is deemed necessary to develop a new design and acceptance protocol for driven piles. This new protocol incorporates locally calibrated RLFD resistance factors for accounting for local design and construction experiences and practices, as well …
Online Detection Of Outliers And Structural Breaks Using Sequential Monte Carlo Methods, Richard Wanjohi
Online Detection Of Outliers And Structural Breaks Using Sequential Monte Carlo Methods, Richard Wanjohi
Graduate Theses and Dissertations
Outliers and structural breaks occur quite frequently in time series data. Whereas outliers often contain valuable information
about the process under study, they are known to have serious negative impact on statistical data analysis. Most obvious effect is model misspecification and biased parameter estimation which results in wrong conclusions and inaccurate predictions. Structural time series consist of underlying features such as level, slope, cycles or seasonal components. Structural breaks are permanent disruptions of one or more of these components and might be a signal of serious changes in the observed process.
Detecting outliers and estimating the location of structural breaks …
Poisson Distributed Individuals Control Charts With Optimal Limits, Negin Enayaty Ahangar
Poisson Distributed Individuals Control Charts With Optimal Limits, Negin Enayaty Ahangar
Graduate Theses and Dissertations
The conventional method used in attribute control charts is the Shewhart three sigma limits. The implicit assumption of the Normal distribution in this approach is not appropriate for skewed distributions such as Poisson, Geometric and Negative Binomial. Normal approximations perform poorly in the tail area of the these distributions. In this research, a type of attribute control chart is introduced to monitor the processes that provide count data. The economic objective of this chart is to minimize the cost of its errors which is determined by the designer. This objective is a linear function of type I and II errors. …