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A wound core of reactor with the gap at high frequency is analyzed using the three-dimensional parallel finite element method. First of all, the effects of the mesh division of the steel sheet on the iron loss are clarified. After that, the effects of the frequency on the iron loss are clarified. Consequently, the iron loss of the reactor at the high frequency considering the skin effect is quantitatively...
It is important to investigate the relationship between grounding characteristic of a wind turbine generation system and overvoltage caused by lightning. Based on those investigations, appropriate wind turbine grounding systems should be designed. In this paper, an improvement of a wind turbine grounding system using counterpoises and ring earth electrodes has been introduced; the effects are verified...
Resistive RAM (ReRAM) has been recently developed for applications that require higher speed and lower voltage than Flash memory is able to provide. One of the applications is micro-controller units (MCUs) or SoCs with several megabits of embedded ReRAM. Another is solid-state drives (SSDs) where a combination of higher-density ReRAM and NAND flash memory would achieve high-performance and high-reliability...
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