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Articles 1 - 5 of 5
Full-Text Articles in Engineering
Towards The Efficient Probabilistic Characterization Of Tropical Cyclone-Generated Storm Surge Hazards Under Stationary And Nonstationary Conditions, Senanu Kudjo Agbley
Towards The Efficient Probabilistic Characterization Of Tropical Cyclone-Generated Storm Surge Hazards Under Stationary And Nonstationary Conditions, Senanu Kudjo Agbley
Civil & Environmental Engineering Theses & Dissertations
The scarcity of observations at any single location confounds the probabilistic characterization of tropical cyclone-generated storm surge hazards using annual maxima and peaks-over-threshold methods. The EST and the JPM are indirect approaches aimed at estimating the probability distribution of the response variable of interest (i.e. storm surge) using the probability distributions of predictor variables (e.g. storm size, storm intensity etc.). In the first part of this work, the relative performance of the empirical simulation technique (EST; Borgman et al., 1992) and the joint probability method (JPM; Myers, 1970) is evaluated via stochastic simulation methods. It is shown that the JPM …
Using Geographically Weighted Regression Models To Analyze Crash Harm, Libin Zheng
Using Geographically Weighted Regression Models To Analyze Crash Harm, Libin Zheng
Civil & Environmental Engineering Theses & Dissertations
Society pays a high cost for collisions in terms of property damage, injuries and loss of life. This paper has two objectives. One is to examine various factors associated with harm caused by highway collisions. Both global OLS and local GWR models are provided to identify specific variables influencing crash harm. Another objective is to demonstrate the use of a Geographically Weighted Regression (GWR) method in this complex safety problem, which can estimate models for each crash location and show spatial variation. The results show that the GWR model is a significant improvement on the OLS model; the test for …
Geometrically Nonlinear Arc Length Sparse Finite Element Analysis And Optimal Design Of Truss Structures, Glenn A. Hrinda
Geometrically Nonlinear Arc Length Sparse Finite Element Analysis And Optimal Design Of Truss Structures, Glenn A. Hrinda
Civil & Environmental Engineering Theses & Dissertations
A technique for the optimization of stability-constrained geometrically nonlinear shallow trusses with snap-through behavior is demonstrated using the arc length method and a strain energy density approach within a discrete finite element formulation. The optimization method uses an iterative scheme that evaluates the performance of the design variables and then updates them according to a recursive formula that is controlled by the arc length method. A minimum weight design is achieved when a uniform nonlinear strain energy density is found in all members. This minimal condition places the design load just below the critical-limit load that causes snap-through of the …
Spatiotemporal Estuarine Water Quality Parameterization Using Remote Sensing And In-Situ Characteristics, Kwisun Park Yu
Spatiotemporal Estuarine Water Quality Parameterization Using Remote Sensing And In-Situ Characteristics, Kwisun Park Yu
Civil & Environmental Engineering Theses & Dissertations
This dissertation develops a new paradigm in a water quality monitoring approach to parameterize spatiotemporal estuarine water quality with sustainable reliability, less cost and less time. A key underpinning of this paradigm of the spatiotemporal estuarine water quality parameterization is various water quality parameters' interrelationship with ambient water temperature as a common factor, their time dependent characteristics, and spatiotemporal characteristics of remote sensing. It has two core models to provide input data of water quality parameterization model in a system; the transfer function models of the physical system and an analytical temperature time series model. The objective of this dissertation …
International Service Learning Projects For Senior Capstone Projects, Steve Reichle, Avery Bang, Carol Considine
International Service Learning Projects For Senior Capstone Projects, Steve Reichle, Avery Bang, Carol Considine
Engineering Technology Faculty Publications
Service learning is being adopted in many engineering programs at various course levels. International service learning experiences can provide senior level engineering students with opportunities to practice the required skills of engineering graduates as detailed by the ABET Criteria for Accrediting Engineering Programs. Bridges to Prosperity is a non-profit organization that builds footbridges in rural third world communities. These design build footbridge projects require a full year for fundraising, site visit, design and construction, and provide engineering students an opportunity to practice their knowledge of globalization, sustainability, engineering design, teamwork, and leadership. A team of students from the University of …