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 997 for “"H2"”.
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Catalysts for H2 production
The research of new catalysts for the hydrogen production described in this thesis was inserted within a collaboration of Department of Industrial Chemistry and Materials of University of Bologna and Air Liquide (Centre de Recherche Claude-Delorme, Paris). The aim of the work was focused on the …
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Path integral Monte Carlo simulations of solid H2 surfaces and thin 4He films on H2 substrates
Based on Richard P. Feynman's formulation of quantum mechanics, Path Integral Monte Carlo is a computational ab-initio method to calculate finite temperature equilibrium properties of quantum many-body systems. As input, only fundamental physical constants and pair-potentials are required. We carry …
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Ribonuclease H2, RNA:DNA hybrids and innate immunity
… of one of the AGS nucleases, the Ribonuclease H2 (RNase H2) complex, in innate immunity, and to establish if nucleic acid substrates of this enzyme were able to induce type I interferon production in vitro. The AGS nucleases may function as components of the innate immune response to nucleic …
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Using H2 to supplement Diesel in Marine Applications
This study investigates opportunities and constraints in relation to the operation of marine Diesel engines in a dual fuel mode with diesel and hydrogen. Increasing costs of fuel place an additional burden on the marine industry and in some sectors, such as the fishing industry, the long term …
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Studies in synthesis using CO2 and H2 gases
This thesis is split into two parts based on two different areas of research. Part 1 Part 1 is sub-divided into four chapters. Chapter 1 involves a review of the existing research conducted in this area. Chapter 2 provides details on the research carried out in this project on the development of a …
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Structural Studies of the Mammalian RNase H2 Heterotrimeric Complex
… ribonucleotide in a DNA duplex. Eukaryotic RNase H2 is a heterotrimeric complex of the H2A, H2B, and H2C proteins. Mutations in any of the genes encoding for the three proteins of the RNase H2 complex cause the rare autoimmune disease Aicardi Giouteres Syndrome. We determined the structure of the …
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SYNTHESIS OF Ti02- BASED PHOTOCATALYSTS FOR PHOTOCATALYTIC H2 GENERATION
Since the discovery of splitting water into H2 and O2 with a photoelectrochemical set-up by Honda and Fujishima, photocatalytic H2 generation using TiO2 has been extensively studied due to its relatively high efficiency and photostability compares with other semiconductors. The photocatalytic …
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Constant Mean Curvature 1/2 Surfaces in H2 × R
This thesis lies in the field of constant mean curvature (cmc) hypersurfaces and specifically cmc 1/2 surfaces in the three-manifold H 2 × R. The value 1/2 is the critical mean curvature for H 2 × R, in that there do no exist closed cmc surfaces with mean curvature 1/2 or less. Daniel and Hauswirth …
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D2 and H2 interactions with chemically reactive metal hydrides
In the last year and a half, the research group under Dr. George Miley has been conducting experiments on the pressurization of chemically reactive nanoparticle metal hydrides with hydrogen gas. A consistent behavior of a net anomalous heat release has been seen. With consultation from peers and …
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H2, fixed architecture, control design for large scale systems
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1990.
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Variétés V2, V3, et variétés V4 à symétrie H2, H3
… symétries de l’hyperbole H1, de l’hyperboloïde H2, et de l’hyperboloïde H3, on cherche les variétés pseudo-riemaniennes V4, munies de telles symétries."
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Microfluidic H2/O2 fuel cells for contaminant and electrode analysis
… operating lifetime. We have used a microfluidic H2/O2 fuel cell as an analytical platform to determine the effects of the carbonate formation problem in alkaline fuel cells. The microfluidic fuel cell has modular components that can easily be swapped to test electrodes, electrolyte, or other …
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Active site requirements for selective catalytic O2 reduction with H2
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-12-01
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Nanostructured Catalysts for Green Fuels Production: Electrochemical Synthesis of NH3 and H2 [Catalizzatori nanostrutturati per la produzione di Green Fuels: sintesi elettrochimica di NH3 e H2]
L'ammoniaca (NH3) è ampiamente utilizzata in molti settori, dall'agricoltura alla farmaceutica, ed è recentemente emersa come un promettente vettore di energia carbon-free grazie al suo alto contenuto di idrogeno. Tradizionalmente, la produzione di ammoniaca si basa sul processo Haber-Bosch, che …
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Zeitaufgelöste Untersuchungen zur Fragmentationsdynamik von H2 (D2) in ultra-kurzen Laserpulsen
… Pump-Probe Experimente zur Fragmentation von H2 (D2) MolekÜlen in intensiven 6 bzw. 25 fs Laserpulsen durchgefÜhrt, mit dem Ziel, die ultraschnelle Bewegung der beiden Kerne im gebundenen Zustand zeitaufgelöst abzubilden. Hierzu wurde ein hochstabiles Mach-Zehnder Interferometer aufgebaut, das …
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Carbon nitride for solar H2 production coupled to organic chemical transformations
… utilises solar-light for clean fuel H2 production and is emerging as a potential solution for renewable energy generation. Photocatalytic systems that combine a light harvester and catalysts in one-pot reactor are promising strategies towards this direction. Yet, most of the reported …
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