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Full-Text Articles in Behavioral Economics
Dynamic Social Networks With Beneficial And Detrimental Interactions, Shadrack Adu Antwi
Dynamic Social Networks With Beneficial And Detrimental Interactions, Shadrack Adu Antwi
Dissertations, Theses, and Masters Projects
The complex social relationships in society can be understood as a network. In recent years, complex networks have given researchers a more accurate picture of social interactions than aggregation models such as compartmental models had hitherto provided. Compartmental models which collect individuals into population classes based on infection state, for instance, had left out local interactions that could be important for understanding social relationships and attendant phenomena such as epidemics, rumors, etc., in the society. Topics of modeling for complex networks have included the dynamics of social relationships and how they affect disease and opinion spread. Different types of relationships, …
Surface Polishing Of Niobium For Superconducting Radio Frequency (Srf) Cavity Application, Liang Zhao
Surface Polishing Of Niobium For Superconducting Radio Frequency (Srf) Cavity Application, Liang Zhao
Dissertations, Theses, and Masters Projects
Niobium cavities are important components in modern particle accelerators based on superconducting radio frequency (SRF) technology. The interior of SRF cavities are cleaned and polished in order to produce high accelerating field and low power dissipation on the cavity wall. Current polishing methods, buffered chemical polishing (BCP) and electropolishing (EP), have their advantages and limitations. We seek to improve current methods and explore laser polishing (LP) as a greener alternative of chemical methods. The topography and removal rate of BCP at different conditions (duration, temperature, sample orientation, flow rate) was studied with optical microscopy, scanning electron microscopy (SEM), and electron …