Index Catalog // ScholarsArchive@OSU

Bridge Model Parameter Sensitivity in Pushover and Nonlinear Time History Analysis

Creator:: Johnsohn, Karryn E.
Abstract:: The aim of this research is to understand and quantify the modeling differences between CSiBridge and OpenSees, and to determine sensitive model parameters. When designing bridges for the high seismic region of California, the California Department of Transportation (Caltrans) performs nonlinear time history analysis of their bridge models. For three-dimensional...
Resource Type:: Masters Thesis
Full Text:: degree of Master of Science in Civil Engineering presented on June 9, 2016. Title: Bridge Model

Numerical modeling of biofilms

Creator:: Mendoza, Adriana
Abstract:: We present a new mathematical model for the development of biofilm that extends the nonlinear density-dependent continuum model introduced by Eberl et al. in 2001. It is a coupled nonlinear density-dependent diffusion-reaction model for biomass spreading, describing the interaction of nutrient availability and biomass production. The model by Eberl has...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Malgorzata S. Peszynska We present a new mathematical model for the development of

A methodology for scheduling jobs in a flexible flowshop with sequence dependent setup times and machine skipping

Creator:: Pandya, Vaibhav
Abstract:: A flexible flowshop, comprised of one or more stages having unrelated parallel machines, is investigated in this research. Unrelated parallel machines can perform the same function but have different capacity or capability. Since this problem is motivated by industry research, dynamic job release times and dynamic machine availability times have...
Resource Type:: Masters Thesis
Full Text:: : ........................................................................................................... 12 4.4 Mathematical Model

Simulations of geckos dry adhesion system

Creator:: Hu, Congcong
Abstract:: Simulation models were developed to explore the reversible nature of gecko dry adhesion system. The central idea of this model is that even with a small moment imparted on the contact tip, the seta can be easily ad-adhered. It is shown that this contact condition is very sensitive, but can...
Resource Type:: Masters Thesis
Full Text:: of this model is that even with a small moment imparted on the contact tip, the seta can be easily

Modeling in-situ vapor extraction during flow boiling in microscale channel

Creator:: Salakij, Saran
Abstract:: In-situ vapor extraction is performed by applying a pressure differential across a hydrophobic porous membrane that forms a wall of the channel as a means of reducing the local quality of flow boiling within the channel. As the local quality is reduced, the heat transfer capability can be improve while...
Resource Type:: Dissertation
Full Text:: can be used as a basis for a regime-based vapor extraction rate model. The effects of vapor

Reinforcement learning-based off-equilibrium incentives to approximate the VCG mechanism

Creator:: Moissinac, Béatrice
Abstract:: Auctions are used to solve resource allocation problem between many agents and many items in real-world settings. Unfortunately, in most cases, it is possible for selfish agents to manipulate the system for their own interest at the expense of the social welfare. Such manipulation can be prevented using the Vickrey-Clarke-Groves...
Resource Type:: Masters Thesis
Full Text:: System & Dynamics . . . . . . . . . . . . . . . . . . . . . . . . . . 25 4.2.2 CubeSats Model 1

The Mathematics of Critical Shifts in Ecological Networks with Alternative Stable State Theory, A Potential Framework for Early Warning Indicators

Creator:: Kupperman, Michael D.
Abstract:: A long running problem in mathematical biology is the prediction of extinction events, a specialized case of the larger global stability problem found in differential equations and dynamical systems theory. A central technical question is how to introduce the randomness observed in real ecological systems not accounted for in deterministic...
Resource Type:: Honors College Thesis
Full Text:: biology have emphasized the mathematical and ecological relationships between model parameters, rather

Simulating the dose enhancement effects of platinum nanoparticles in a spherical geometry with Monte Carlo calculations

Creator:: Mathews, Joshua A.
Abstract:: Background: The use of high-Z nanoparticles as radiation dose enhancers has been researched thoroughly over the past decade. High-Z nanoparticles introduced to a medium increase the probability of photoelectric absorption. This leads to an increase in the production of short range characteristic and Auger electrons and, thus, local radiation dose....
Resource Type:: Masters Thesis
Full Text:: difference in the dose before and after interfaces can be approximated using a mathematical model (Martin

Stochastic Characterization of Highway Capacity and Its Applications

Creator:: Dong, Shangjia
Abstract:: Highway capacity has traditionally been treated as deterministic. In reality, however, capacity can vary from time to time and location to location due to inclement weather, various driving behavior, traffic incident, bottleneck and workzone. This thesis aims to characterize the stochastic variations of highway capacity, and explore its applications. The...
Resource Type:: Masters Thesis
Full Text:: Average (STARIMA) model. It is identified following a Seasonal STARIMA model (0, 0, 23)×(0, 1, 0)2

Stock Synthesis Assessments of Spatially Structured Fish Populations with an Environmental Driver on Recruitment Distribution : A Simulation Study and Discussion

Creator:: Denson, LaTreese S.
Abstract:: Stock assessments use statistical models and empirical data to re-create the population dynamics of a stock in order to provide estimates of biomass and fishing mortality rates to inform fisheries management. Fish stocks are not uniformly distributed across spatial regions, but stock assessments typically ignore stock spatial structure, for the...
Resource Type:: Masters Thesis
Full Text:: mathematical or computational limitations. One simple model, the Schaefer (1954) production model, tracks the

ScholarsArchive@OSU

Bridge Model Parameter Sensitivity in Pushover and Nonlinear Time History Analysis

Numerical modeling of biofilms

A methodology for scheduling jobs in a flexible flowshop with sequence dependent setup times and machine skipping

Simulations of geckos dry adhesion system

Modeling in-situ vapor extraction during flow boiling in microscale channel

Reinforcement learning-based off-equilibrium incentives to approximate the VCG mechanism

The Mathematics of Critical Shifts in Ecological Networks with Alternative Stable State Theory, A Potential Framework for Early Warning Indicators

Simulating the dose enhancement effects of platinum nanoparticles in a spherical geometry with Monte Carlo calculations

Stochastic Characterization of Highway Capacity and Its Applications

Stock Synthesis Assessments of Spatially Structured Fish Populations with an Environmental Driver on Recruitment Distribution : A Simulation Study and Discussion

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