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Hiroaki Yoda,Kazuo Uranishi,Chikara Takahashi,Yasuo Handa 한국유체기계학회 2021 International journal of fluid machinery and syste Vol.14 No.3
Pump efficiency correction equations for converting from water to viscous liquids have been established for the turbulent-flow and laminar-flow regions. However, the two equations are discontinuous in the transient-flow region. This paper proposes a new equation for the transient-flow region that is based on fluid-dynamical considerations. Moreover, an alternative equation is examined for the turbulent-flow region that avoids an underestimate caused by the current efficiency correction equation that was adopted in ISO/TR 17766.
MRAM technology - Recent progress and issues
Sumio Ikegawa,Hiroaki Yoda,Shuichi Tahara 한국자기학회 2003 한국자기학회 학술연구발표회 논문개요집 Vol.13 No.1
The 1 Mbit MRAM without yoke wire and 1 kbit MRAM with the yoke wire, were successfully fabricated. Once the problems discussed in this paper are solved, MRAM will become a versatile memory applicable to both commodity and embedded memory.