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.
Results
Showing 1 to 20 of 49 for “"Simple Geometric"”.
-
Polynomial partitioning and incidence problems in higher dimensions
… is the study of the intersection patterns of simple geometric objects. One of the breakthroughs in this field is the polynomial partitioning technique introduced by Guth and Katz. In this thesis, I will present two results on incidence problems with high-dimensional objects: an almost tight …
-
Homoclinic Points in the Composition of Two Reflections
… of planar area preserving mappings and give a geometric condition that guarantees the existence of homoclinic points. To be more precise, let $f,g:R \to R$ be $C^1$ functions with domain all of $R$. Let $F:R^2 \to R^2$ denote a horizontal reflection in the curve $x=-f(y)$, and let $G:R^2 \to …
-
Modeling the sorting of sediments on delta tops
… on the processes that sort by grain size. A simple geometric model was developed to predict the location of the transition between coarse and fine sediment in a bimodal sediment distribution and tested against flume-created deposits with a variety of flow and depositional conditions. The …
-
Upper and Lower Bounds for Sampling
… constant dimensions. Our lower bounds rely on simple geometric constructions, which can hopefully be of aid to similar results in high dimensions.
-
A Descending Columbarium
… expression of the contemplation of death simple geometric figures are meant to evoke a general sense of proper emotional and intellectual response to the phenomenon of death, perhaps to dying. This approach hopes to allow for individual contemplation of the ending and the end of human life.
-
Numerical Simulation on Dilute Phase Pneumatic Transport
… was modelled with k-ω SST. It was found that simple geometric alterations to the bend geometry could reduce the pressure drop by half while larger changes such as the addition of a cyclone separator and removal of the knockout chamber could reduce the pressure drop over 50% and extend the life …
-
SPANNING Between Structure and Nature
… to water. Along a steel-glass bridge, three simple volumes play together to achieve the functions of the student union. There is an order among Nature, Architecture, and People in this project. Simple geometric forms and the elegant structure interact with nature to achieve the order. People …
-
The behavior of O - C curves for contact binaries in the Kepler catalog
… of the 0 - C curves. Instead, we propose a simple geometric model of a starspot that is continuously visible around the orbit.
-
3D architecture form synthesizer
… ~nd complex designs using only a small number of simple rules, computers can now have imagination. The problem is addressed here mainly in the domain of architecture. By formulating Shape Grammar in the framework of Iterated Function System (IFS) theory, various architectural massing designs, most …
-
Quantifying particle sorting in microbubble streaming flows
… smaller than the bubble itself. We propose a simple geometric mechanism, based on flow speeds and channel geometry, that reliably predicts the sorting behaviour seen in experiment. It is also shown that an asymptotic theory that incorporates the device geometry and superimposed channel flow …
-
Atomistic model of void nucleation and growth during electromigration
… void energies are described qualitatively by a simple geometric model involving surface and grain boundary energies. We have used the results of our BAM calculations to guide the construction of a kinetic Monte Carlo (KMC) model of void nucleation and growth during electromigration. Our KMC code …
-
Energy Flow in Particle Collisions
… decades, such as observables and jets, as simple geometric objects in this new space. Second, I develop a basis of observables by systematically expanding in particle energies and angles, encompassing many existing observables and uncovering new analytic structures. I highlight how the …
-
Feature-based geometric modeling using B-spline surfaces and a natural language approach
… a human being to interpret them and recognize geometric features to evaluate the design. Solid modeling systems have made the task somewhat easier, but they often require tedious and complex operations using simple geometric primitives. This has led to investigation of modeling systems which …
-
Increasing the survivability of long distance fiber optic networks
… survivability and network cost. Studying three simple network topologies, the ring, hub and mesh topologies, the ring topology is found to have many advantages for high capacity communication systems. Combinations of the simple network topologies may be used to combine the advantages of each …
-
Seismic In-Plane Response of Reinforced Concrete Frames with Masonry Infill Walls
… walls is developed. The method requires only the simple geometric and material properties of the elements involved in the frame- wall assembly. The approach checks various possible failure mechanisms, including those that may evolve depending on how the infill wall may fail during strong shaking, …
-
Recognition of handwritten mathematical expressions
… cost. Finally, the expression is parsed using a simple geometric grammar.
-
From space to episodes : modeling memory formation in the hippocampal-neocortical system
… and whose changes when the environment undergoes simple geometric transformations are in accordance with experimental data. Representations of multiple environments can be stored and recalled with little interference, and have the appropriate degrees of similarity in visually similar environments.
-
Design and Development of Intelligent Navigation Control Systems for Autonomous Robots that Uses Neural Networks and Fuzzy Logic Techniques and Fpga For Its Implementation
… a real unknown indoor environment that contains simple geometric-shaped static objects to reach a goal in an unspecified location. In particular, the study presents and compares the design, simulation, hardware implementation, and testing of these controllers. The first controller is a …
-
Modeling the Geometry of Neural Network Representation Spaces
… where variations in data can be measured using simple geometric quantities such as Euclidean distances. This thesis studies the geometric structure of this space and its influence on key properties of the learning process, including how much data is needed to acquire new skills, when predictions …
-
Topography effects in the 1999 Athens earthquake : engineering issues in seismology
… the later have treated topographic asperities as simple geometric irregularities on the surface of homogeneous, linearly elastic halfspaces. Despite the qualitative agreement between theory and observations on topography effects, there is still much uncertainty concerning the actual severity of …
Page 1 of 3