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 42 for “"roundness"”.
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Characterization in satire: the three degrees of roundness; purpose, complexity, and credibility
The project will attempt to explore how courtship, marriage, family, and divorce would be perceived by characters of the Greek mythos as they attempt to assimilate to a fictional Western culture through the use of satirical conventions. How would modern cultural normalities be accepted or rejected …
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OPtO-MECHANICAL METHOD FOR SUB-MICRON MEASUREMENT OF FERRULE ROUNDNESS AND CONCENTRICITY
… a combination of ferrule outside diameter roundness error and concentricity error. However, it is important to distinguish between concentricity error and roundness error because the ferrules are inserted into a ceramic sleeve that mostly accommodates the roundness error of the ferrule. At …
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Pebbles in the glacial till of eastern North Dakota
… were analyzed in terms of lithology, shape, and roundness. Graphs are given showing the relationships among the various factors. The graph are discussed and significance of the various factors affecting the pebbles are evalnated.</p>
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A Lithologic Report on the Coon Creek Tongue Ripley Formation, in Tennesse
… is a olive gray siltstone, well sorted, with roundness values for the grains ranging from angular to subrounded. Quartz, biotite, and glauconite were the principal minerals observed. Porosity and permeability were variable, but mostly very good. </p>
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Influence of some particle characteristics on the small strain response of granular materials
… of geomaterials. Both particle form and particle roundness have correlations with the values of Gmax normalised by a void ratio function, F(e). Normalised Gmax increases with increasing sphericity and roundness of the particle. At the same void ratio, the stress exponent, n, elastic threshold …
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The development and demonstration of a practical methodology for fine particle shape characterisation in minerals processing
… for shape characterisation of fine particles. Roundness and aspect ratio were found to be more robust descriptors. However, in the interest of being able to compare particulate shape measurements across different studies, the precise definition of aspect ratio is important as variation in …
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A model to predict the three-dimensional cutting force system for drilling with arbitrary point geometry
… hole produced includes characteristics such as roundness and cylindricity errors, surface finish, burrs, delamination in drilling composites, etc. Most of these parameters are related to the cutting forces generated in the process. Modeling the cutting forces in drilling, in terms of the tool …
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A Market in Nairobi
… interpretation based on given characteristics of roundness. The archetypal circle is where abstraction and exploration occur. The plan of traditional African vernacular architecture is a circle, and as such, was the starting point. Rational manipulations of the geometric circle made the building. …
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Regular Round Matroids
… dual has no two disjoint minimal dependent sets. Roundness is an important property that was very useful in the recent proof of Rota's conjecture, which remained an unsolved problem for 40 years in matroid theory. In this thesis, we give a characterization of regular round matroids.</p>
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The Auborus Formation of the Bethanie district, South West Africa
… Zircon has been classified on colour, roundness, inclusions and zoning; tourmaline on colour, roundness and inclusions. Bedding in the sands tone is from thin to laminated. The commonest sedimentary structures are cross-beds, mud cracks and clay-pellet impressions. Other features are …
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Numeric Conversions Ameliorate the Framing Effect
… research is necessary to determine why the roundness of the percentage and the judgment being made affect our results.
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Stratigraphy and sedimentology of the Tongue River formation (Paleocene), southeast Golden Valley County, North Dakota
… total carbonate content, particle size, particle roundness, and mineral composition. In the area studied, the Tongue River Formation is 763 feet thick which is considerably thinner than in surrounding areas. The lower member of the Tongue River Formation is 313 feet thick and is composed of …
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Design and manufacturing of high precision roll-to-roll multi-layer printing machine : measurement and experiment
… wrapping process can guarantee a print roller roundness error in the 20 [micro]m range; that the distortion of the print using the updated system is approximately 3.8. The multi-layer printing test did not achieve acceptable results owing to a lack of proper control of the machine. However, …
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Narrative light : the design of a monastic retreat
… York. Kahn employs the light to evoke a sense of roundness within the square central room. By this simple move, Kahn has softened the comers, thus retaining the essence of his initial concept which depicts the space as a circular room. His attitude towards the light tells us of the generative …
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Sensory and Chemical Characteristics of Eastern Oysters(Crassostrea virginica)
… volume of liquor, gray/brown and tan colors, roundness of shell, plumpness and salty taste when comparing eastern oysters from Chesapeake to oysters from Rhode Island and New Brunswick, Canada. The glycogen contents in eastern oysters followed the reproductive cycle and glycogen increased from …
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Application of a multi-method approach to the stock identification and discrimination of kingklip, Genypterus capensis (Smith, 1847), off the South African coast
… analyses indicated that four (rectangularity, roundness, ellipticity, and aspect ratio) of the six otolith shape indices calculated showed significant spatial differences in mature specimens. In immature specimens, circularity, form factor, ellipticity, and aspect ratio, showed significant …
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Grain size distributions of various materials in an abrasion mill
… (1963). Several tentative reasons are given. Roundness and sphericity of both crushed sand-sized quartz and orthoclase and sand-sized quartz and orthoclase abraded off of pebbles increase with time in the abrasion mill, the rate of change being greater for the fine sand sizes than for the …
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Provenance and depositional environments of the upper Permian-lowermost Triassic fluvial and lacustrine sandstones, Wutonggou low-order cycle, Bogda Mountains, NW China
… are different in grain size, sorting, roundness, and textural maturity, indicating provenance is a major control factor in sandstone textures. Moreover, each petrofacies is subdivided into littoral/beach, deltaic, and fluvial sedimentary facies, of which the textural characteristics are …
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Calibration of orifice plates with special emphasis on edge sharpness and eccentricity
… calibrate orifice plates and to measure the edge roundness of orifice plates are discussed. Orifice plates with area ratios ranging from 0,1.to 0,55 were tested in order to evaluate variations in the coefficient of discharge with changes in: a) the upstream edge radius; b) the plate concentricity …
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Till Fabric
… transverse orientation of these axes. The shape, roundness, and amount of axial dip of the particle determines its orientation. </p><p>Several theories as to the genesis of till fabric are discussed. It is concluded that the theory which is proposed by Holmes is the most acceptable. Parallel …
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