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.
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Showing 1 to 20 of 2368 for “"planar"”.
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Hamiltonian cycles in maximal planar graphs and planar triangulations
In this thesis we study planar graphs, in particular, maximal planar graphs and general planar triangulations. In Chapter 1 we present the terminology and notations that will be used throughout the thesis and review some elementary results on graphs that we shall need. In Chapter 2 we study the …
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Infinite Planar Graphs
… contain? How many bounded automorphisms does a planar graph have? Neimayer and Watkins studied these two questions and answered them for a certain class of graphs. Using the concept of excess of a vertex, the class of graphs that Neimayer and Watkins studied are extended to include graphs with …
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Quartic planar graphs
… we explore three problems concerning quartic planar graphs. The First is on recursive structures
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Quartic planar graphs
… we explore three problems concerning quartic planar graphs. The First is on recursive structures
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Planar nanowire high electron mobility transistor and down-scaling of planar nanowire
Monolithically grown planar nanowire (NW) high electron mobility transistors (NW-HEMTs) have been demonstrated with self-aligned <110> planar GaAs NW channels capped by a thin film AlGaAs barrier. The planar NW-HEMTs exhibit uniform and scalable DC characteristics; and resolve the electrical …
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Planar visual fusion scintigraphy
Planar scintigraphy, while providing useful information about the distribution of the radiopharmaceutical being used, often does not provide adequate information about the surrounding anatomical structures. A proposed method to solve this problem is by registering and fusing a scintigraphic image …
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Distances in planar graphs
… the results and methods of papers studying planar graphs, particularly those solving the degree diameter problem for various kinds of ρ-facedegree regular graphs. In this review, we provide a correction to an error in The degree/diameter problem in maximal planar bipartite graphs by Dalf´o, …
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Planar groove gap waveguides
… in the design of tunable and reconfigurable planar devices. A planar medium to achieve this integration is the Substrate Integrated Waveguide (SIW). However, due to a lack of DC isolated planes of the structure, bridging wires or concentric etched rings are often used to enable active device …
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Planar phonology and morphology
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Linguistics and Philosophy, 1987.
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Investigations in planar physics
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1994.
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Edge-choosability of Planar Graphs
… ∆(G) ≤χ' (G)≤∆(G) + 1. We prove that if G is a planar graph without 7-cycles with ∆(G)≠5,6 , or without adjacent 4-cycles with ∆(G)≠5, or with no 3-cycles adjacent to 5-cycles, then G is edge-(∆ + 1)-choosable.
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Quasiconformal mappings on planar surfaces
… projects concerning quasiconformal mappings on planar surfaces. In the first two projects we show that a priori weaker conditions still suffice to prove quasiconformality. The geometric definition states that an orientation-preserving homeomorphism f:U → f(U) is quasiconformal if there exists K …
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The Planar Triple Bubble Problem
We prove the planar triple bubble conjecture that the standard triple bubble is the unique least-perimeter way to enclose and separate three regions of given areas. We also prove a bound on the number of convex components and a bound on the number of all components in any minimizing planar bubble.
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Planar Coils for NMR Microspectroscopy
Planar microcoils suffer from a reduced sensitivity compared to solenoidal microcoils. However, because of their planar geometry, they can be more easily fabricated and integrated into microanalysis systems through the use of microfabrication techniques. This thesis investigates the feasibility of …
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On planar rational cuspidal curves
… Coolidge-Nagata problem on the rectifiability of planar rational cuspidal curves, that is, their equivalence to lines under the Cremona group of birational automorphisms of the plane.
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Mechanics of planar periodic microstructures
The deformation of two-dimensional periodically patterned elastomeric sheets has been shown to trigger interesting pattern changes that are both repeatable and predictable (Bertoldi et al., 2007). Here, both square and hexagonal lattices of these sheets under axial compression are investigated both …
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High-precision planar magnetic levitation
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 1997
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Probabilistic modeling of planar pushing
… (GP), and the probabilistic modeling of planar pushing by combining input-dependent GPs and GP-SUM. The main advantages of GP-SUM for filtering are that it does not rely on linearizations or unimodal Gaussian approximations of the belief. Moreover, it can be seen as a combination of a …
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Design optimization of planar mechanisms
… program was used to design two types of planar mechanisms - function generators and path generators. Miscellaneous design considerations and recommendations for future research are discussed.
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