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 466 for “"Metamorphic"”.
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Theory and optimisation of metamorphic photonic devices
Metamorphic growth of semiconductor materials – in which a “virtual” substrate with a desired lattice constant is obtained by growing a lattice-mismatched metamorphic buffer layer (MBL) on a conventional substrate such as InP or GaAs – is beginning to attract increasing interest due to its …
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Investigating the metamorphic evolution of reworked terrains.
… monazite and zircon LA-ICPMS geochronology and metamorphic phase equilibria study of regions which have experienced multiple metamorphic events. The aim of using this combination of techniques is to construct P-T-t evolution histories of both older and younger overprinting events in a terrane. …
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Design and development of an anthropomorphic metamorphic robotic hand
… “Design and Development of an Anthropomorphic Metamorphic Robotic Hand”. First, general comparison between scientific and commercial robotic hands is introduced. Specification and structure of the hands are studied. Noted tendencies are discussed. After that, kinematic analysis of the proposed …
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MOVPE metamorphic lasers and nanostructures engineering at telecom wavelengths
… associated with InP-based technologies. InGaAs metamorphic buffer heterostructures constitutes an alternative to the conventional routes relying on quantum dots or dilute nitride approaches, all with their own technical challenges and drawbacks. Metamorphic growth techniques provide …
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Metamorphic and crustal evolution of Australian-Antarctic Proterozoic margins
… and thus the tectonic setting(s) of which this metamorphic expression is the hallmark. The Musgrave–Albany–Fraser–Wilkes Orogen (MAFWO) is outstanding in its record of regionally expansive, prolonged, and thermally extreme conditions during the Mesoproterozoic (D1/M1: 1345–1260 Ma; D2/M2: …
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Trace element zoning in garnets--implications for metamorphic petrogenesis
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric and Planetary Sciences, 1988.
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A geochronologic study of metamorphic rocks in northeastern Massachusetts
Thesis. 1978. Ph.D.--Massachusetts Institute of Technology. Dept. of Earth and Planetary Sciences.
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Using Metamorphic Textures to Infer Deformation and Thermodynamic Histories
… are commonly used to determine P-T conditions in metamorphic rock assemblages. However, the actual process of porphyroblast nucleation is still poorly understood and garnet growth may occur at different conditions than those predicted by equilibrium thermodynamics. It is typically assumed that the …
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Optimization of the metamorphic development process via the genetic algorithm
… of this thesis was the integration of the metamorphic development process with a genetic algorithm in order to optimize the metamorphic development process. Since the origin of the metamorphic development process, there has been a need for the user to input parameters in order to coax …
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Livadi Mafic-Ultramafic Complex and its metamorphic basement, N.E. Greece
… of the Livadi Mafic - Ultramafic Complex and the metamorphic lithologies of the Pelagonian basement, results from an involved history of deformation and metamorphism. The Pelagonian basement comprises a sequence of psammitic and pelitic clastics, frequently of arkosic composition, and probably of …
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Tectonic evolution of the Rhodope metamorphic core complex, northeastern Greece
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1994.
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Electrical degradation of InAlAs/InGaAs metamorphic high electron mobility transistors
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1999.
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The Creation of Variable Space by Means of Metamorphic Boundaries
… house's shadowy interior. It is ambiguous, this metamorphic transformation, and for each individual visitor always a somewhat different experience, and sometimes a vastly different experience from that of anyone else, a familiarity with the unfamiliar nevertheless shaped by the uniquely personal …
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Microstructural Controls on the Crystallization and Exhumation of Metamorphic Rocks
… versus kinetic factors control the evolution of metamorphic rocks. Four studies in this dissertation address this, finding that: i) garnet crystals crystallize via epitaxial nucleation in which garnet crystallizes by templating on the crystal structure of muscovite; ii) the distribution of grain …
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Igneous and metamorphic processes in the Shap Granite and its aureole
… lkm wide and 'generally displays limited contact metamorphic reactions apart from in the Blue Quarry, where higher sub—surface heat flow during the granite's intrusion resulted in localised more extreme metamorphic and some metasomatic conditions resulting in the development of garnet veins. …
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The States and Status of Clay: Material, Metamorphic and Metaphorical Values.
… research investigates the textural fluidity and metamorphic potential of these clays in their raw state. The practice encompasses two interrelated groups of work; the In-breath and Out-breath. These terms are significant in three respects. Firstly they define two different modes and moments of …
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Exploring the Enstatite Chondrites: Modal Abundances, Metamorphic History, and Volatile Challenges
<p>This thesis investigates the formation conditions, thermal histories, and volatile inventories of enstatite chondrites (ECs). A diverse set of ECs is analyzed to capture the broad variability within this meteorite class. Chapter 1 presents a comparative analysis of mineral abundances using …
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Metamorphic and Tectonic Evolution of the Paleoproterozoic Thompson Nickel Belt, Manitoba
… work represents the first comprehensive regional metamorphic study of the belt. Three nested metamorphic domains are present in the Thompson Nickel Belt which are elongate subparallel to the regional strike of the belt. The metamorphic domains consist of a central middle amphibolite-facies zone …
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