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 776 for “"structural changes"”.
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Post-depositional structural changes in clay sediments
This thesis examines the changes in the microstructure of clays and mudrocks due to the influence of the environment of deposition and subsequent compaction. A sedimentary model is proposed in which the development of fissility in shales and the formation of hydrocarbon source rocks are attributed …
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Studying Network Structural Changes Using Information Event Signatures
… both the path of the information flow and the changes in the structure of the network, as measured by the growth of network gatekeepers within the Occupy movement, are related to parameters of the model. Third, the analysis suggests that the Occupy gatekeepers recursively extend their reach by …
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Essays on structural changes in high dimensional econometric models
… of three essays on estimating and testing structural changes in high dimensional econometrics models. These essays are based on three working papers joint with Prof. Badi Baltagi and Prof. Chihwa Kao. The first essay considers estimating the date of a single common change in the regression …
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Structural changes in online retailing and the marketing mix
The online retail environment is expanding, enhancing the possibilities for customers to shop online. On the one hand, a proliferation of online channels establishes a multichannel online retailing landscape, which offers customers more alternatives in terms of where to shop online. On the other …
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Regional Inequality and Structural Changes in the Brazilian Economy
The results of this dissertation suggest that the interplay of market forces in the Brazilian economy favors the more developed region of the country. In other words, the trickling-down effects generated by market forces are still very unlikely to overtake the polarization effects from the …
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Investigation of structural changes in vanadium containing transition metal oxides
… in a comprehensive study of the local-structure changes as a function of molybdenum composition and have made large strides in interpreting some of the major changes found in this study. For these experiments, single crystals of molybdenum substituted VO2 with the formula V1-xMoxO2 were …
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Structural Changes in Single Crystal Copper - Alpha-Brass Diffusion Couples
Made available in DSpace on 2014-12-04T23:26:45Z (GMT). No. of bitstreams: 1 5801692.pdf: 1803980 bytes, checksum: d540c256111cc3a2c27fba7a64279cb5 (MD5) Previous issue date: 1958
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Analysis of the structural changes caused by positive DNA supercoiling
… (underwinding) in its wake. While the structural and physiological consequences of negative supercoiling have been well studied, technical challenges have prevented extensive examination of positively supercoiled DNA. Studies suggest that at sufficiently high levels of overwinding, DNA …
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Structural Changes and Chain Mobility During Processing of Bloodmeal-Based Thermoplastics
… (FT-IR) to investigate chain architecture and structural changes. Extrusion, injection moulding and mechanical testing were used to investigate macroscopic properties, such as processability and mechanical properties. Material pocket DMA enabled detection of glass transition temperatures not …
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Characterization of structural changes in thermally enhanced Kevlar-29® Fiber
… exploratory investigation was to elucidate the structural mechanism accounting for the enhanced compressive properties of heat-treated Kevlar-29® fibers. A novel theory was set forth that hydrogen bond disruption and concurrent misorientation of crystallites may account for the observed …
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Endoplasmic Reticulum Dynamic Structural Changes in Neurons: The Fission-Fusion Phenomena
… molecular machinery regulating the reversible changes in ER morphology remains unknown.
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Sensitivity of active vibration control to structural changes and model reduction
… and stability of the control system to changes in structure and to model reduction. The second type is the sensitivity of the optimum design of the control system to changes in the structure. This sensitivity is of interest in assessing the need for integrated structure/control design. …
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Structural changes to Pinus radiata wood lignin during kraft pulping and bleaching
… comparisons to be drawn with respect to structural changes occurring during the pulping and bleaching processes. An improved method for the isolation of lignin from Pinus radiata wood was developed. The method involves a three day enzymatic hydrolysis of ball milled wood, followed by a …
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Surface structural changes of perovskite oxides during oxygen evolution in alkaline electrolyte
Perovskite oxides such Ba0.5Sr0.5Co0.8Fe0.8O3-6 (BSCF82) are among the most active catalysts for the oxygen evolution reaction (OER) in alkaline solution reported to date. In this work it is shown via high resolution transmission electron microscopy (HRTEM) and Raman spectroscopy that oxides such …
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