Sökning: "copper transport"

Visar resultat 11 - 15 av 70 avhandlingar innehållade orden copper transport.

1. 11. Quantum Transport Theory in Graphene

   Författare :Anders Bergvall; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; quantum coherent electron transport; nanoribbons; FT-LDOS; grain boundaries; tight-binding; graphene;

   Sammanfattning : In this thesis, we focus on different aspects of electron transport in nanostructured graphene (such as graphene nanoribbons). Wedevelop and implement numerical methods to study quantum coherent electron transport on an atomistic level, complemented by analytical calculations based on the Dirac approximation valid close to the points $\vec{K}$ and $\vec{K}^\prime$ in the graphene Brillouin zone. LÄS MER

3. 12. Structural and biochemical analysis of two copper proteins - plastocyanin from spinach and nitrite reductase from Rhodobacter sphaeroides 2.4.3

   Författare :Frida Jacobson; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Plastocyanin; X-ray crystallography; nitrite reductase; copper geometry; redox; copper protein; photosynthesis; reduction potential; denitrification; electron transfer;

   Sammanfattning : Plastocyanin from spinach and nitrite reductase from Rhodobacter sphaeroides 2.4.3 are two copper-containing proteins that are involved in biological electron transport chains: plastocyanin operates in photosynthesis and nitrite reductase takes part in the denitrification pathway. LÄS MER

4. 13. A molecular guide to efficient charge transport : Coordination materials for photovoltaic cells

   Författare :Hannes Michaels; Marina Freitag; Aldo Di Carlo; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Coordination chemistry; energy conversion; photovoltaics; charge transport;

   Sammanfattning : Emerging solar energy conversion and energy storage technologies play a vital role in solving the present energy crisis and achieving carbon net zero. Currently, they are limited by the use of inefficient, unstable and expensive charge transport materials. LÄS MER

5. 14. HNO3-Induced Atmospheric Corrosion of Copper, Zinc and Carbon Steel

   Författare :Farid Samie; Christofer Leygraf; Carlos Arroyave; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nitric acid; deposition velocity; mass transport; air velocity; relative humidity; Chemistry; Kemi;

   Sammanfattning : The role of nitric acid (HNO3) on the atmospheric corrosion of metals has so far received little or no attention. However, the last decades of decreasing sulphur dioxide (SO2) levels and unchanged HNO3 levels in many industrialized countries have resulted in an increased interest in possible HNO3-induced atmospheric corrosion effects. LÄS MER

7. 15. Heavy-ion transport codes for radiotherapy and radioprotection in space

   Författare :Davide Mancusi; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; charge-changing cross sections; transport codes; radiotherapy; Monte-Carlo codes; heavy ions; radioprotection in space;

   Sammanfattning : Simulation of the transport of heavy ions in matter is a field of nuclear science that has recently received attention in view of its importance for some relevant applications. Accelerated heavy ions can, for example, be used to treat cancers (heavy-ion radiotherapy) and show some superior qualities with respect to more conventional treatment systems, like photons (x-rays) or protons. LÄS MER