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- Min Wang, Shuzhi Sam Ge, Keum Shik Hong
- IEEE Transactions on Neural Networks
- 2009

This paper presents adaptive neural tracking control for a class of non-affine pure-feedback systems with multiple unknown state time-varying delays. To overcome the design difficulty from non-affine structure of pure-feedback system, mean value theorem is exploited to deduce affine appearance of state variables as virtual controls , and of the actual… (More)

- Wei He, Shuzhi Sam Ge, Bernard Voon Ee How, Yoo Sang Choo, Keum Shik Hong
- Automatica
- 2011

In this paper, robust adaptive boundary control for a flexible marine riser with vessel dynamics is developed to suppress the riser’s vibration. To provide an accurate and concise representation of the riser’s dynamic behavior, the flexible marine riser with vessel dynamics is described by a distributed parameter system with a partial differential equation… (More)

- Augie Widyotriatmo, Keum Shik Hong
- IEEE Trans. Industrial Electronics
- 2011

In this paper, a collision-free navigation method for a group of autonomous wheeled vehicles is investigated. The position and orientation information of individual vehicles is transformed to navigation variables, which are the distance left to the goal position, the angle made by the orientation of the vehicle at the goal position and the vehicle-to-target… (More)

- Muhammad Aqil, Keum Shik Hong, Myung-Yung Jeong, Shuzhi Sam Ge
- NeuroImage
- 2012

This paper presents a state-space hemodynamic model by which any event-related hemodynamic prediction function (i.e., the basis function of the design matrix in the general linear model) is obtained as an output of the model. To model the actual event-related behavior during a task period (intra-activity dynamics) besides the contrasting behavior among the… (More)

- Joseph Bentsman, Keum Shik Hong, Jamel Fakhfakh
- Automatica
- 1991

- Le Hoa Nguyen, Keum Shik Hong
- Mathematics and Computers in Simulation
- 2011

After investigating the effect of the frequency of an external electrical stimulation on the chaotic dynamics of a single FitzHugh–Nagumo (FHN) neuron, this paper derives both a sufficient and a necessary condition of the coupling coefficient for self-synchronization of two interacting FHN neurons by using the Lyapunov function method and the largest… (More)

- Keum Shik Hong, Noman Naseer
- Int. J. Neural Syst.
- 2016

In this paper, we present a systematic method to reduce the time lag in detecting initial dips using a vector-based phase diagram and an autoregressive moving average with exogenous signals (ARMAX) model-based q-step-ahead prediction algorithm. With functional near-infrared spectroscopy (fNIRS), signals related to mental arithmetic and right-hand clenching… (More)

- Kyung-Jinn Yang, Keum Shik Hong, Fumitoshi Matsuno
- IEEE Trans. Contr. Sys. Techn.
- 2005

In this brief, the investigational results for a robust adaptive vibration control of a translating tensioned beam with a varying traveling speed are presented. The dynamics of beam and actuator is modeled via the extended Hamilton’s principle, in which the tension applied to the beam is given as a nonlinear spatiotemporally varying function. The moving… (More)

- Keum Shik Hong, Jeom-Goo Kim
- J. Field Robotics
- 2000

- Keum Shik Hong
- IEEE Trans. Contr. Sys. Techn.
- 2002

An open-loop control for underactuated mechanical systems using oscillatory inputs with amplitude and frequency modulations is investigated. Once all actuated joints are moved to their desired positions, oscillatory inputs are applied to an actuated joint to move the remaining unactuated joints. The steering force of the unactuated joints is achieved by… (More)