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Full-Text Articles in Science and Technology Studies
A Finiteness Condition On The Coefficients Of The Probabilistic Zeta Function, Dung Hoang Duong, Andrea Lucchini
A Finiteness Condition On The Coefficients Of The Probabilistic Zeta Function, Dung Hoang Duong, Andrea Lucchini
Faculty of Engineering and Information Sciences - Papers: Part B
We discuss whether finiteness properties of a profinite group G can be deduced from the coefficients of the probabilistic zeta function PG(s). In particular we prove that if PG(s) is rational and all but finitely many non abelian composition factors of G are isomorphic to PSL(2,p) for some prime p, then G contains only finitely many maximal subgroups.
A Medium Frequency Transformer With Multiple Secondary Windings For Medium Voltage Converter Based Wind Turbine Power Generating Systems, Md Rabiul Islam, Youguang Guo, Jianguo Zhu
A Medium Frequency Transformer With Multiple Secondary Windings For Medium Voltage Converter Based Wind Turbine Power Generating Systems, Md Rabiul Islam, Youguang Guo, Jianguo Zhu
Faculty of Engineering and Information Sciences - Papers: Part B
Recent advances in magnetic materials have led to the development of compact and light weight, medium and high frequency transformers, which would be a possible solution to reducing the size and weight of wind turbine power generating systems. This paper presents the overall design and analysis of a Metglas amorphous alloy 2605SA1 based medium frequency transformer to generate the isolated balanced multiple DC supplies for medium voltage converter systems. A comprehensive electromagnetic analysis is conducted on the proposed design based on experimental results. The test stand, data analysis, and test results are discussed.