Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Choong Woo Lee"'
Autor:
Seung-Chan Kim, Young-Wook Lim, Soon-Yong Kwon, Woo-Lam Jo, Sung-Hun Ju, Chan-Joo Park, Choong-Woo Lee, Yong-Sik Kim
Publikováno v:
PLoS ONE, Vol 12, Iss 5, p e0178300 (2017)
After total hip arthroplasty (THA), restoration of hip center of rotation (COR) is essential to ensure stability of the prosthetic hip and longevity of the prosthesis. Our aim was to determine whether, and how, the COR changed postoperatively compare
Externí odkaz:
https://doaj.org/article/e9d7d89ef3a24b599529789bd6522d18
Publikováno v:
Journal of Foot & Ankle Research. 9/15/2016, Vol. 9, p1-5. 5p. 2 Black and White Photographs, 2 Charts.
Publikováno v:
Journal of the American Podiatric Medical Association. 107(3)
Most fungal infections primarily occur in immunocompromised patients. We describe a case of osteomyelitis involving the first metatarsal head due to Cryptococcus neoformans in a previously healthy immunocompetent patient. She was treated with surgica
Publikováno v:
IEEE/ASME Transactions on Mechatronics. 19:1458-1463
In this paper, a nonlinear controller with dead-zone and saturation is proposed in order to improve the antishock performance. Since using dead-zone and saturation improves the stability margin, we can use a higher gain for the dead-zone than in the
Publikováno v:
Mechatronics. 21:1156-1162
In this paper, we present a novel control method with clamping force estimation for an electric parking brake system. This simple control structure can be implemented at low cost as it does not require a clamping force sensor. The characteristic curv
Autor:
Choong Woo Lee, Sang Min Suh
Publikováno v:
IEEE Transactions on Magnetics. 47:1830-1836
This paper presents a voice coil motor (VCM) prediction based dual-stage actuator (DSA) control for fast seek and settling times. In the conventional control systems, VCM follows a reference signal, whereas a micro-actuator (MA) seeks a VCM position
Publikováno v:
International Journal of Automotive Technology. 11:387-394
A fault detection method with parity equations is proposed in this paper. Due to its low cost implementation, the velocity of the motor is not measurable in electric parking brake (EPB) systems. Therefore, residuals are not reliable when estimating t
Publikováno v:
IEEE/ASME Transactions on Mechatronics. 15:242-252
In this paper, we present a new tracking control method for holographic digital data storage systems. Holographic data storage systems that use disk media need a different tracking method from those that use optical and hard disk drives. Here, we pre
Publikováno v:
IFAC Proceedings Volumes. 43:174-179
This paper presents a discrete time design of sliding mode servo control with minimum residual vibration that significantly affects settling of the disk drive head to a target track. By optimizing the acceleration rate, the convergence rate to the sl
Publikováno v:
IEEE Transactions on Magnetics. 45:5094-5099
Self-servo track writing is a process of writing servo bursts on a subsequent track using servo bursts from the previously written track as a reference. A fundamental obstacle in self-servo track writing is radial error propagation due to written-in