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 8 of 8 for “"Transport Channels"”.
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Molecular mechanisms of gating and selectivity in transport channels
Transport channels and pores are of fundamental importance for translocation of molecules across the otherwise-impermeable biological membrane. As a conduit for the passage of material, specific membrane channels must accomplish the task of selective transport of molecules, while preventing …
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Geochemical properties of the Beni Bousera (N. Morocco) peridotites : a field and laboratory approach to understanding melt infiltration and extraction in an orogenic peridotite massif
… and pyroxenites - are believed to be relict melt transport channels. Peridotites and pyroxenites found in these zones show evidence of interaction with a relatively depleted melt (high Cr, low Al and Ti in mineral phases), and textures that suggest the secondary precipitation of neoblastic …
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Quantum Geometry and Topology in Periodically-Strained Graphene
… where they provide well-developed valley-helical transport channels on a single zigzag edge. We discuss possible schemes for implementing this situation and their experimental signatures. When subjected to a perpendicular electric field, the doublet bands in periodically-strained graphene are …
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The Influence of Aromatic Disulfonated Random and Block Copolymers' Molecular Weight, Composition,and Microstructure on the Properties of Proton Exchange Membranes for Fuel Cells
… the multiblock copolymer formed better proton transport channels. This multiblock copolymer showed comparable proton conductivity and fuel cell performance to the Nafion® control and had much better proton transport properties than random ketone copolymers under partially hydrated conditions. …
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Experimental and gyrokinetic studies of impurity transport in the core of Alcator C-Mod Plasmas
… tools, a comprehensive study of impurity transport was performed on Alcator C-Mod L-mode discharges. A new, multi-pulse laser blow-off system was designed and constructed to introduce trace amounts of non-recycling, non-intrinsic, impurities in the plasma edge. This system was coupled with …
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Superconducting Electron Transport in Graphene-Based Josephson Junctions
… In this work, we study the supercurrent transport in three different regimes dependent on the electronic properties of graphene: diffusive, ballistic and quantum Hall (QH). In a diffusive device, the mean free path (scattering length) ξ_S of an electron is shorter than the length between …
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Understanding the nature of fluctuations in the edge of I-mode and L-mode plasmas at ASDEX Upgrade
… are thought to lead to the formation of the edge transport barrier in tokamak plasmas, which defines the transition from low confinement (L-mode) to high confinement operation such as H-mode or the "improved'' confinement regime I-mode. I-mode is of particular interest for future reactor operation …
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Investigating HSV-1 pUL56 mediated antagonisation of DNA sensing mechanisms
… can also be secreted from the cell by cGAMP transport channels. This enables cGAMP to be delivered to neighbouring cells, thereby initiating a signalling cascade that results in the production of type-I IFN, priming immunity in bystander uninfected cells to restrict virus spread. One such …