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 125 for “"Structural evolution"”.
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Structural evolution of carbon during oxidation
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1997.
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The high temperature structural evolution of hafnia
… by high temperature x-ray diffraction. The structural information provided by these experiments allows the properties of the transformation to be further investigated. Using phenomenological theory of martensite crystallography, the strain associated with the transformation from the …
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Structural evolution of the Roanoke area, Virginia
… in detail in an attempt to reconstruct the structural evolution of this critical area situated at the arcuate junction of the Southern and Central Appalachians. The area includes approximately 15,000 feet of Paleozoic sedimentary rocks which range in age from Early Cambrian to Early …
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Kinetic and structural evolution of functional peptide assembling networks
The peptide assembly mechanism is important for the development of both functional biomaterials and clinical therapies. Although the assembly structures and assembling pathways have been studied for decades, the complex multistep mechanism remains to be clarified. The main goal of this thesis is to …
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Structural Evolution In Mechanically Alloyed Fe-based Powder Systems
… alloys was undertaken to study the structural evolution in these powders as a function of milling time during mechanical alloying. Blended elemental powders of Fe100-XBX (where x = 5, 10, 17, 20, 22, 25, 37.5 and 50 at. %) and a bulk metallic glass (BMG) composition …
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Structural Evolution of the Himalayan Thrust Belt, West Nepal
… strata were recently documented to crop out in a structural window in the central portion of the Himalayan thrust belt. Presently, structural interpretations of the thrust belt do not explain in detail how these strata were incorporated into the thrust belt and why they are not widely exposed …
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Structural Evolution in the Dynamic Plasticity of FCC Metals
… `instantaneous' effects and the more permanent `structural' ones. In this thesis a series of experiments are presented which are designed to separate the two types of contribution. Chapter 2 outlines the basics of dislocation plasticity, based on the seminal works of Taylor and Orowan. It then …
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Structural Evolution and Ceramic Formation in Metakaolin-Based Geopolymers
… not well understood. In this dissertation, the structural evolution and crystallization of 4SiO2•Al2O3• M2O•11H2O (where M = K, or Cs) composition geopolymers on heating was investigated.
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Structural evolution of lipid droplets in murine liver cancer
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-03-01 without embargo terms
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Seasonality, latitudinal dependence and structural evolution of arctic cyclones
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-09-01 without embargo terms
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Structural evolution during the plastic deformation of nanostructured steel
Nanostructured bainitic steels represent a major advance in technology, because it is now possible to produce very large quantities of three-dimensional objects containing an incredible density of interfaces. This can be done at a reasonable cost so that thousands of tonnes can actually be …
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Anisotropy and the structural evolution of the oceanic upper mantle
The dispersion of Love and Rayleigh waves in the period range 17-167 sec. is used to detect the change in the structure of the upper mantle as the age of the sea-floor increases away from the mid-ocean ridge. Using the single station method, the group and phase velocities of Rayleigh waves were …
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The Structural Evolution of the Faroe Islands, NE Atlantic Margin
… zones. In this study, the Palaeogene and later structural evolution of the NE Atlantic margin is investigated using abundant field data collected on the Faroe Islands, and systematic observations that characterise the related deformation structures developed in the Faroe Islands Basalt Group …
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Nanocrystalline alloys : enhanced strengthening mechanisms and mechanically-driven structural evolution
… now exists for studies that explore how other structural features affect mechanical properties in order to identify alternative strengthening mechanisms. In this thesis, we seek to extend our current knowledge of nanocrystalline structure-property relationships beyond just grain size, using …
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Anisotropy and the structural evolution of the oceanic upper mantle.
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth and Planetary Science, 1974.
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Structural evolution of the Max Meadows thrust sheet, Southwest Virginia
Fold and fault structures in sub-greenschist strata of the most internal, Southern Appalachian foreland thrust sheet developed in progressive simple shear near the ductile-to-brittle transition. Heterogeneous simple shear (γ < 3) was localized in incompetent, anisotropic pelitic rocks (Rome …
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Polymer-derived Si-al-c-n Ceramics:oxidation, Hot-corrosion, And Structural Evolution
… oxidation/hot-corrosion behavior and the structural evolution of Si-Al-C-N ceramics have been studied. The structural evolution and crystallization behavior of the SiCN and SiAlCN ceramics are investigated using FT-IR, XRD, and NMR. The results revealed that aluminum could greatly affect …
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Structural evolution of crystalline lower plate rocks, Central Sacramento Mountains, Southeastern California
… California, contains complex lithologic and structural relationships. Detailed mapping and petrographic analysis of lower plate rocks from the central part of the range show that three deformation events have been recorded. An amphibolite facies-grade foliation (Sg), which represents the …
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