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Physical Sciences and Mathematics Commons™
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Articles 1 - 6 of 6
Full-Text Articles in Physical Sciences and Mathematics
Using 3-Dimensional Ffts To Simulate Cmb Maps On A Spherical Cap, Eric Goetz
Using 3-Dimensional Ffts To Simulate Cmb Maps On A Spherical Cap, Eric Goetz
Honors Theses
The current methods of simulating the Cosmic Microwave Background (CMB) involve either simulating the entire sky using spherical transforms or simulating a at patch with fast Fourier transforms (FFTs). For patches that are too large to be considered at but much less than the full sky, the former method is inecient and the latter is inaccurate. One alternative method of CMB simulation is to simulate the random processes behind the CMB in a 3-dimensional box that contains the part of the sphere that we want to measure. Then, we can select the points we want from the box. This method …
Finding The Limitations Of The Expanded Equivalent Fluid Approximation For Simulating Acoustic Interactions With The Ocean Bottom, Steven J. Kirkup
Finding The Limitations Of The Expanded Equivalent Fluid Approximation For Simulating Acoustic Interactions With The Ocean Bottom, Steven J. Kirkup
Honors Theses
Equivalent fluids use complex densities in place of realistic seafloor conditions to simplify simulations of acoustic interaction with the seafloor. This eliminates the computationally intensive attempts to simulate realistic seafloor interactions that include shear waves. A previous method used such equivalent fluids and was found to be accurate only for interaction with low grazing angles and low shear speeds. The current method expands by also parameterizing the speed of sound in the fluid, allowing higher grazing angles and shear speeds to be modeled with equivalent fluids. For a particular window of grazing angle, there are several approaches to determining the …
A Framework For The Automation Of Discrete-Event Simulation Experiments, Bryan Ward
A Framework For The Automation Of Discrete-Event Simulation Experiments, Bryan Ward
Honors Theses
Simulation is an important resource for researchers in diverse fields. However, many researchers have found flaws in the methodology of published simulation studies and have described the state of the simulation community as being in a crisis of credibility. This work describes the project of the Simulation Automation Framework for Experiments (SAFE), which addresses the issues that undermine credibility by automating the workflow in the execution of simulation studies. Automation reduces the number of opportunities for users to introduce error in the scientific process thereby improvingthe credibility of the final results. Automation also eases the job of simulation users and …
Ecological Niching In An Interactive Simulation, Ryan T. Webb
Ecological Niching In An Interactive Simulation, Ryan T. Webb
Honors Theses
Our goal is to create a simulation platform for the study of ecological niching that can be extended to suit the needs of biological research. Ecological niching and the accompanying evolutionary process of speciation are difficult to observe in situ, which makes them prime candidates for study via the methods of computer simulation. To this end, we have created an interactive, real-time ecosystem simulation based on the standard predator/prey interaction model, in which interacting populations of organisms exhibit swarming behavior. We hope to provide the basic simulation components necessary to bring about niching and speciation, that may be extended for …
Temporal Flocking And Cacophony Simulating Agent Communication In A Noisy Environment, Jessica R. Crawford
Temporal Flocking And Cacophony Simulating Agent Communication In A Noisy Environment, Jessica R. Crawford
Honors Theses
Realistic communication is one of the most difficult aspects of simulating group behavior because the patterns produced by group communication are complex and not easily definable. In this paper, we present a model, developed using artificial life methodology, for creating simulations of group communication. Our model employs autonomous, artificial agents to produce emergent group behavior that resembles the communication patterns of a group, specifically, a flock of birds. Each agent collects information about its environment and its neighbors and follows a set of rules designed to meet both group goals and individual agent goals. Because we seek to establish emergent …
On The Automatic Generation Of Network Protocol Simulators, Andrew Chen
On The Automatic Generation Of Network Protocol Simulators, Andrew Chen
Honors Theses
Computers communicate with each other over various communication networks via a language known as a protocol. The design of the protocol can have a significant impact on the efficiency (and effectiveness) of the network. Because building an actual network to test the performance (and reliability) of a new protocol is rather expensive and time consuming, there is an interest in simulating network protocols in order to determine how efficient the communication network is. We are therefore interested in automatically generating simulators that could measure the performance of the new protocols. There are two main parts to this project. The first …