Zobrazeno 1 - 10
of 128
pro vyhledávání: '"Hyung Soo Mok"'
Publikováno v:
IEEE Access, Vol 11, Pp 16288-16296 (2023)
This paper proposes an electrical parameter estimation method for permanent magnet synchronous motors (PMSMs) considering the voltage source inverter (VSI) nonlinearity. Accurate parameters are essential for high-performance control of PMSMs. Therefo
Externí odkaz:
https://doaj.org/article/a572f22758b245088a28709c784646a3
Publikováno v:
Applied Sciences, Vol 11, Iss 22, p 10588 (2021)
The recent increase in ailments has increased the demand for diagnosis and surgery based on X-rays. An X-ray system using a filament-type tube heats the filament for operation, and the electrons emitted by the thermal energy during this process produ
Externí odkaz:
https://doaj.org/article/50c1df003b0244d2bf5621f1676a742d
Publikováno v:
Energies, Vol 13, Iss 24, p 6544 (2020)
While urban maglev trains have the advantage of being optimized for urban environments where noise is low and dust is less generated, their driving efficiency is low when compared to rotary induction motors owing to the structural limitations of line
Externí odkaz:
https://doaj.org/article/1f17024c7c0c474d933c88f5669a87ff
Publikováno v:
Energies, Vol 13, Iss 6, p 1393 (2020)
With recent advancements in the electrical industry, the demand for high capacity and high energy density batteries has increased, subsequently increasing the demand for fast and reliable battery charging. A battery is an assembly of a plurality of c
Externí odkaz:
https://doaj.org/article/0f6d87583fd6442e9582cc5c3e3f54be
Autor:
Jeung Sun Ahn, Jinho Choi, Helin Zhu, Mallory Mativenga, Je-Jin Jang, Moon Shik Chae, Jaekyu Jang, Amar Prasad Gupta, Je Hwang Ryu, Byeong-No Lee, Seung Jun Yeo, Jaeik Jung, Keunhwa Park, Hyung-Soo Mok
Publikováno v:
IEEE Transactions on Electron Devices. 68:4705-4710
A major challenge for glass X-ray tube makers is the reduction in the tube size for portable or handheld applications. Size reduction is difficult mainly due to contact size restrictions for glass-to-metal welding. In high-voltage (60–70 kV) portab
Publikováno v:
Journal of Power Electronics. 20:538-552
This paper proposes an enhanced speed control algorithm that synchronizes the rotation speeds of the engine and the drive motor at the engine start to improve the engagement performance of the engine clutch in a parallel hybrid vehicle. The zero over
Publikováno v:
IEEE Access, Vol 8, Pp 199864-199881 (2020)
Pulse width modulation (PWM) methods are important for the detection performance of a sound navigation and ranging (sonar) system because they determine the output noise of the system. However, only few studies have been conducted on PWM methods for
Publikováno v:
Applied Sciences
Volume 11
Issue 22
Applied Sciences, Vol 11, Iss 10588, p 10588 (2021)
Volume 11
Issue 22
Applied Sciences, Vol 11, Iss 10588, p 10588 (2021)
The recent increase in ailments has increased the demand for diagnosis and surgery based on X-rays. An X-ray system using a filament-type tube heats the filament for operation, and the electrons emitted by the thermal energy during this process produ
Autor:
Kilju Kim, Chang-Wan Kim, Dong-Chan Lee, Seunghyeon Cho, Dae-Sung Bae, Hyung Soo Mok, Gyeong Uk Jang, Jongyoung Hwang
Publikováno v:
Journal of Mechanical Science and Technology. 33:3955-3961
In this study, optimum design process to reduce a torque ripple was presented for an interior permanent magnet (IPM) type electric traction motor. Firstly, 2-D electromagnetic finite element analysis was conducted to analyze the characteristics of th
Autor:
Yeong Heum Yeon, Moon Shik Chae, Seung Jun Yeo, Jeung Sun Ahn, Seung Hoon Kim, Jaeik Jung, Jinho Choi, Jaekyu Jang, Byeong No Lee, Moonkyoo Kong, Kyung-Min Oh, Hyung Soo Mok, Amar Prasad Gupta, Je Hwang Ryu
Publikováno v:
Medical Imaging 2021: Physics of Medical Imaging.
We developed a compact vacuum X-ray tube using an alumina body instead of glass. A filament is implanted as a cathode which follows Richardson-Dushman equation. After aging the filament to eliminate impurities on the filament which improves performan