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 18 of 18 for “"In-situ Techniques"”.
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Pressuremeter testing in miocene stiff clays
In geotechnical engineering, it has proven difficult to obtain reliable soil parameters for stiff clays. Laboratory testing results are often scattering due to the fissures and slickensides in these soils. Alternatively, in situ techniques offer a means to test the soils in place. This study …
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Measurement of Inclusive Isolated Prompt Photon Production at √s = 7 TeV with the ATLAS Detector
… chromodynamics (pQCD), and are also found in signatures of new physics. A precise measurement of prompt photon production is both a useful test of theoretical models as well as an important step towards understanding final states that contain energetic photons. This thesis presents a …
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Estudo das características de permeabilidade dos maciços aluvionares
… due to periodic fluctuations of a river, the main objective of this work, is used to evaluate the permeability of an aquifer at the river's bank, with aid of simple piezometric observations. The differencial equation governing this type of transient flow was developed by Jacob, who assumed an …
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Probing complex ionic dynamics on the nanoscale via energy discovery platforms
Ionic dynamics underpin the functionalities of a broad spectrum of materials and devices ranging from energy storage and conversion, to sensors and catalytic devices. Electrochemical reactivity and ionic transport in these systems is, however, a complex process, controlled by the interplay of …
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Trends in C-H bond dehydrogenation energetics for small molecule conversion
… of C-H bonds and the conversion of C-H bond containing small molecules has remained a holy grail of chemical reactions over the past few decades. The design of materials to maximize product selectivity for wide–ranging energy and environmental applications is typically carried out by a creating of …
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Statistical modelling and variability of the subtropical front, New Zealand
Ocean fronts are narrow zones of intense dynamic activity that play an important role in global ocean-atmosphere interactions. Of particular significance is the circumglobal frontal system of the Southern Ocean where intermediate water masses are formed, heat, salt, nutrients and momentum are …
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Wechselwirkung von dünnen Schichten aus HVZ Polyestern im wässrigen Medium mit Modellproteinen
… on the whole route of material development starting from the investigations of properties of the initial (raw) HBPs to their applications. Each research step is given in a separate chapter to enhance attention to various aspects of the aim of the work. Thus, every chapter is started with an …
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Atomic Level Study Of Water-Gas Shift Catalysts Via Transmission Electron Microscopy And X-Ray Spectroscopy
… (ΔH° = -41 kJ mol<sup> -1</sup> ), is an industrially important reaction for the production of high purity hydrogen. Commercial Cu/ZnO/Al<sub>2</sub> O<sub>3</sub> catalystsare employed to accelerate this reaction, yet these catalysts suffer from certain drawbacks, including costly …
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Fiber and nitrogen fractions of forages and by-product feeds determined by in vitro and in situ procedures
Objectives were to determine dry matter, fiber and nitrogen fractions, and in vitro and in situ degradability of forages and by-product feeds, and to compare in vitro methods of estimating rumen degradability with the in situ bag technique. Feeds analyzed with number of samples in parentheses …
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Models and Techniques for Green High-Performance Computing
High-performance computing (HPC) systems have become power limited. For instance, the U.S. Department of Energy set a power envelope of 20MW in 2008 for the first exascale supercomputer now expected to arrive in 2021--22. Toward this end, we seek to improve the greenness of HPC systems by improving …
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The use of reflectance classification for chlorophyll algorithm application across multiple optical water types in South African coastal waters
Ocean colour remote sensing is a valuable tool for deriving information about key biogeochemical variables over inland, coastal and ocean waters at scales unachievable via in situ techniques. However, broader use of ocean colour data is still limited by the need for users to choose among a …
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Innovative composite enamel coatings with improved abrasion resistance and mechanical properties
… to decorate precious artifacts is vitreous enameling, which has its origins in antiquity. The use of vitreous enamels for technical purposes started in the nineteenth century with the First Industrial Revolution, as these coatings were able to combine aesthetically pleasing colors and surface …
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In-operando techniques for early-stage corrosion
In this thesis, novel experimental approaches are investigated to study corrosion at the solid/liquid interface, at a higher spatial and temporal resolution than previously possible. Corrosion remains a pernicious concern for metallic structure stability. This is evident in the common case steel in …
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High power li-Ion battery performance: a mechanistic analysis of aging
… high energy density, high power density and increasing cycling life, LIBs are a well-founded technology for its use on portable electronic devices, electric vehicles (EVs) and electrical energy storage (EES) systems. The extensive use of LIBs accentuates the fact that these power sources are …
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Material Interactions with Molten LiCl-Li2O-Li
The electrolytic reduction of oxide nuclear fuel in a molten lithium chloride electrolyte containing 1-2wt% lithium oxide is a fuel cycle process that has been established on an engineering scale. The electrochemical window of lithium oxide must be exceeded in order to conduct this process at an …
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DESIGN OF NOVEL MATERIALS FOR PHOTO-THERMO-CATALYTIC SOLAR FUELS PRODUCTION
The global challenge of transitioning to sustainable energy sources underscores the critical need for innovative technologies that can harness solar energy for fuel production. Among various strategies, the generation of solar fuels, such as hydrogen (H2) through water splitting or alcohol …
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Ligand Manipulation and Reactivity Studies of Organometallic High Valent Palladium Complexes
<p>Catalysis involving high-valent Pd(III) and Pd(IV) complexes has recently shown important applications in the development of new chemical transformations that compliments conventional Pd<super>0/II</super> catalysis.</p><p>However, the Pd(III) or Pd(IV) intermediates cannot be …
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Macroporous metal oxide battery electrode performance analysis and operando spectroscopy
… gas emissions which have contributed to increasing the global average temperature at a frightening rate. Thankfully, sun, wind and tides have massive potential to provide energy in an environmentally friendly way. However, maintaining these energy sources at the global scale required to …