- Hydraulic and Pneumatic Systems
- Robot Manipulation and Learning
- Soft Robotics and Applications
- Innovations in Concrete and Construction Materials
- Teleoperation and Haptic Systems
- Advanced Manufacturing and Logistics Optimization
- BIM and Construction Integration
- Esophageal and GI Pathology
- Modular Robots and Swarm Intelligence
- Robotic Mechanisms and Dynamics
- Gastric Cancer Management and Outcomes
- Prosthetics and Rehabilitation Robotics
- Robotic Path Planning Algorithms
- Elevator Systems and Control
- Muscle activation and electromyography studies
- Iterative Learning Control Systems
- Traffic control and management
- Industrial Technology and Control Systems
- Gastrointestinal Tumor Research and Treatment
- Vibration and Dynamic Analysis
- Control and Dynamics of Mobile Robots
- Advanced Surface Polishing Techniques
- Power Line Inspection Robots
- Vehicle emissions and performance
- Robotic Locomotion and Control
Korea University
2016-2025
Hubei University of Medicine
2017
University of California, Davis
1995-2002
California State University, Fullerton
1998
Toronto Western Hospital
1996
Human-robot collaboration (HRC) is a promising solution for expanding the use of robotic systems in unstructured environments and complex processes various industries. In this paper, novel variable admittance control (VAC) with virtual stiffness guidance (VSG) proposed to improve performance HRC. The VAC prevents unnecessary changes damping parameter by classifying human intentions low-velocity region, which results smooth movement. Additionally, VSG makes robot actively assist an operator...
The increased risk to the safety of excavator personnel and difficulty in training them, combined with a manpower shortage, have led an demand for machine automation. This study applies long short-term memory algorithm automating bucket-tip trajectory planning AI system. Unlike other autonomous excavation techniques, proposed approach this performs bucket-trajectory without prior knowledge nonlinear bucket–soil interaction dynamics during excavation, which requires precise adjustment...
Recently, the number of high-rise building has increased along with development technology to cope increase in population. Because this, many researches on an automatic façade maintenance system have been conducted satisfy increasing demands maintenance. However, most focused mechanism and composition, while working safety issues not sufficiently dealt with. This paper deals motion control robot which is composed a vertical horizontal moving rail façade. With consideration for robot, these...
The expansion of wheeled mobile robot usage to applications with high loads and speeds requires reliable tracking control that is robust the disturbances emanating from external wheel-ground contact. motion such robots can be accurately described a dynamic model includes both forces complex tire model. However, design full not practical due its complexity nonanalytic form. In this paper, we derive simplified which adequate for treat remaining terms as uncertainty. Then, uncertainty analyzed...
: Appropriate tissue tension and clear visibility of the dissection area using traction are essential for effective safe endoscopic submucosal (ESD). In this study, we developed a retractable robot-assisted device evaluated its performance in colorectal ESD.
The present paper deals with the development of synchronizing controller for dual-drive servo system that is often used SMD (Surface Mount Device) assembly machine. Instead coordinating commands to individual feed drives and implementing closed position loop control each axis, this work achieved by evaluation an optimal cross-coupled compensator aimed specifically at improving synchronous accuracy in dual drives. formulation explicitly includes error performance index be minimized. In paper,...
In this work, electrohydrodynamic (EHD) jetting phenomena were observed for three different types of bottom electrode (plane, hole, pin) at constant back pressure condition the reservoir. Especially, we have focused on measurement and numerical prediction onset voltage pulsating Taylor cone jetting, changing glass capillary nozzle diameter (outer diameter: 16–47 μm), hydrostatic head in reservoir, distance between to provide design information EHD multinozzle head.
Lower back pain and related injuries are prevalent serious problems in various industries, high compression force to the lumbosacral (L5/S1) region has been known as one of key factors. Previous research on passive lower exoskeletons focused reducing lumbar muscle activation by providing an extensor moment. Additionally, traction forces can reduce force, is a common treatment method for clinics. In this paper, we propose novel exoskeleton that provides both moment force. The working...