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Full-Text Articles in Physical Sciences and Mathematics
Temperature Dependent Transport Properties Of Chemical Vapor Deposition Graphene With Metal And Metal Hydride Surface Functionalization, Bochen Zhong
Theses and Dissertations
Graphene, a two-dimensional semi-conductor material containing carbon atoms tightly bonded together in a hexagonal structure, was first isolated by mechanical exfoliation in 2004. Over the past decade, it has drawn huge research interest due to its outstanding mechanical, thermal, and electrical properties. These unique properties of graphene lead to very high carrier mobility. In particular, after an annealing treatment to remove the residual impurities, the suspended graphene mobility exceeds 200,000 cm2/Vs. However, this value is highly reduced to only a few thousand cm2 /Vs in supported graphene on SiO2 or SiC substrates, due to different sources of scattering. For example, …
The Effects Of Tile-Drain Input On A Low-Gradient Agricultural Stream In Central Illinois: Using A Thermal End Member Mixing Model And A Statistical Analysis Approach, Zachary David Kisfalusi
The Effects Of Tile-Drain Input On A Low-Gradient Agricultural Stream In Central Illinois: Using A Thermal End Member Mixing Model And A Statistical Analysis Approach, Zachary David Kisfalusi
Theses and Dissertations
Tile-drains remove excess water from agricultural fields and channel it directly to the nearest surface water body decoupling the system from the natural flow paths. One way to measure the effects tile drains have on streams is to monitor the thermal energy both upstream and downstream of the tile input. In the temperate climate, a stream’s thermal signature experiences large fluctuations seasonally along with small diurnal changes. In contrast, groundwater temperature does not show these small-scale changes, and the seasonal changes are often muted and lagged in comparison to surface water. This project aimed to quantify any thermal change to …