Sökning: "Pd beta"
Visar resultat 1 - 5 av 32 avhandlingar innehållade orden Pd beta.
1. Palladium Catalyzed Methane Oxidation for Emission Control
Sammanfattning : The use of methane based fuels, such as natural gas and biogas, benefits from lower emissions of CO2, CO, NOx, non-methane HC, SOx and particulate matters compared to traditionally used liquid fossil fuels. However, the exhaust gases contain significant levels of unburnt CH4 residuals, which are desirable to minimize since CH4 is a strong greenhouse gas with high global warming potential. LÄS MER
2. Ordered arrays of low-dimensional Au and Pd : synthesis and in situ observations
Sammanfattning : Electrodeposition of metals in templates of nano-porous anodic aluminum oxide (NP-AAO) is a versatile way of fabricating ordered arrays of metal nanowires. Thanks to the self-arranged long-range hexagonal order of the pores, electrodeposition in NP-AAO is an easily scalable bottom-up synthesis route and an attractive alternative to traditional top-down fabrication methods such as electron beam lithography. LÄS MER
3. Using Light to Probe Surface Electrochemical Processes
Sammanfattning : This thesis shows how various light-based in situ techniques can be used to follow different surface electrochemical processes such as electrochemical deposition into Nanoporous Anodic Aluminium Oxide (NP-AAO) templates and the surface structure of electrodes. Techniques based on both x-rays and visible light were used to follow surface structures and compositions, in situ. LÄS MER
4. On the nature of mixed neurodegenerative amyloidopathies
Sammanfattning : Alzheimer's disease (AD) and Parkinson's disease (PD) are the most common neurodegenerative diseases in the world. It has been possible to identify common denominators for AD and PD, including aggregation of the amyloid proteins amyloid-beta (Aβ) and alpha-synuclein (α-syn). LÄS MER
5. Wnt/beta-catenin signaling in midbrain dopaminergic neurons
Sammanfattning : Parkinson's disease (PD) is caused by a progressive degeneration of the dopaminergic (DA) neurons of the substantia nigra. However, the mechanisms underlying the degeneration remain elusive and there is no cure for P1) at present. LÄS MER