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 54 for “"edge-on"”.
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Gravitational lensing of quasars by edge-on spiral galaxies
… lensed quasar CX2201-3201, which is lensed by an edge-on spiral galaxy. The unusually high tilt of the spiral galaxy provides us with a rare opportunity for mass modeling. In addition, the unusual placement of the two visible images of the system offers an intriguing lensing system for study-the …
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The interstellar medium and star formation in edge-on galaxies
… of the vertical disk structure and star formation in four edge-on spiral galaxies (NGC 891, 4157, 4565, and 5907) observed in CO with BIMA/CARMA, HI with VLA, and IR (3.6 and 24 µm) with Spitzer. We first derive the radial density distributions for the edge-on galaxies using our PVD method for …
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The WiFeS Ionized Gas Kinematics of the Edge-on Galaxy J1447-17
The presence of extraplanar diffuse ionized gas (eDIG) and galactic winds and outflows in the late Universe has been observed to be ubiquitous in nearby star-forming spiral galaxies. Optical integral field spectroscopic data from the Wide Field Spectrograph (WiFeS) on the 2.3m Australian National …
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Understanding the Impact of a Serrated Trailing Edge on the Unsteady Hydrodynamic Field
Trailing edge noise is a common noise source in aerodynamic applications, such as wind turbines, duct fan blades, and propellers. As sound is a nuisance for people near this machinery, methods of reducing trailing edge noise are being investigated. A proven method of trailing edge noise reduction …
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Effect of large distributed roughness near an airfoil leading edge on boundary layer development and transition
… distributed roughness located near the leading-edge of an airfoil has been performed to determine the effect on boundary-layer development and transition. Boundary-layer measurements were carried out on a two-dimensional NACA 0012 airfoil with a 21"" chord. The distributed roughness used was in …
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Comparison of herpetofaunal species composition and response to edge on the Camp Dawson Collective Training Area, Preston County, West Virginia
Herpetofaunal species composition, abundance, and diversity were evaluated on the Camp Dawson Collective Training Area, Preston County, West Virginia, as a requirement of the Sikes Act (16 USC 670a et seq.), Army Regulation 200-3, and Department of Defense Instruction 4715.3. Herpetofauna were …
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The Universality of Intrinsic Flattening in Extragalactic Stellar Disks
Highly inclined (edge-on) galaxies provide the unique perspective necessary to constrain the intrinsic flattening, 𝑐/𝑎, of galactic disks. We use “dust-free” 3.6 𝜇m maps of 141 edge-on spiral galaxies from the Spitzer Survey of Stellar Structure in Galaxies (S4G) and its early-type galaxy extension …
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Multi-scale morphology development in solution coated conjugated polymers
… properties play a significant role in solution coating of conjugated polymers. On the one hand, interfacial molecular orientation and alignment critically influence the electronic performance in organic semiconductor thin films. On the other hand, the air-liquid meniscus instability lead to …
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Degradation of GaN High Electron Mobility Transistors under high-power and high-temperature stress
GaN HEMTs (High Electron Mobility Transistors) are promising candidates for high power and high frequency applications but their reliability needs to be established before their wide deployment can be realized. In this thesis, degradation mechanisms of GaN HEMTs under high-power and …
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Cost analysis and comparison of tray container style storage and stackable tote style storage
With the emerging interest in automated distribution centers, shelves operated by mobile robots are also rising in importance. This paper focuses on comparing the cost of two potential shelf designs for storing product in an automated distribution center, a tray container style shelf and a …
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Forest edges enhance mate-finding in the European gypsy moth, Lymantria dispar
… to identifying the effects of habitat boundaries on species abundances, ranges, and spread rates. Movement barriers due to habitat fragmentation may reduce mate-finding ability in some species, particularly in heterogeneous landscapes containing low-density populations. This study focuses on the …
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Precise Partitions Of Large Graphs
<p>First by using an easy application of the Regularity Lemma, we extend some known results about cycles of many lengths to include a specified edge on the cycles. The results in this chapter will help us in rest of this thesis. In 2000, Enomoto and Ota posed a conjecture on the existence of path …
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Interlaminar deformations on the cylindrical surface of a hole in laminated composites: an experimental study
Free-edge effects in composite laminates were studied experimentally. Strains were determined and compared on a ply-by-ply basis for the curved edges of a hole in thick composite panels and along the straight free-edge of the panels. The experimental technique of moire interferometry was extended …
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The Correlation between Work/Life Balance, Intent to Stay, and the Personal Well-being among Female Nurses at a Rural Community Hospital in the Midwest
… balance (WLB) is a must in today's society. Not only are employees with families demanding flexible work schedules, but so are those without families. People today want to have more time to spend with both friends and family. Not only do employees benefit, but employers are also showing benefits …
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Urban Walls
"Edge. a. The line of intersection of two surfaces. b. A rim or brink. c. The point at which something is likely to begin. d. The area or part away from the middle; an extremity. e. A dividing line; a border." Edges are linear elements that create boundaries between two entities and linear breaks …
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Learning continuous models for estimating intrinsic component images
The goal of computer vision is to use an image to recover the characteristics of a scene, such as its shape or illumination. This is difficult because an image is the mixture of multiple characteristics. For example, an edge in an image could be caused by either an edge on a surface or a change in …
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Superconducting Electronics for Breakthrough Starshot Communications
… In order to meet the size, weight, and power constraints of the mission, superconducting electronics should be considered for onboard processing and interfacing with the communications system. Previous research has shown that superconducting nanowire electronics consume over 100𝗑 less switching …
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Protoplanetary disc evolution and dispersal
… I build models which combine viscous evolution with photoevaporation, as previous work suggests that photoevaporation can reproduce the observed disc evolution and dispersal time-scales. The main question this thesis attempts to address is: Can photoevaporation provide a dominant dispersal …
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Field induced orientation of semicrystalline and non-crystallne block copolymer microdomain patterns
… block copolymer microdomain structures are controlled in bulk as well as in thin film by employing flow fields, directional solidification, and substrates. In bulk systems, flow fields generated by the 'roll casting' process orient amorphous cylindrical microdomains along the flow direction …
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Calculation of the effective atomic number for the iodine contrast agent of the varying concentrations
… the difficulties that arise with the determination of the concentration of the iodinated contrast agents in the blood stream via the traditional gray-scale computer tomography and searches for the new imaging modalities that would provide for better sensitivity. The topic of the …
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