ICOAC 2017 - Hong Kong

Keynote Speakers in ICOAC 2017

Keynote Speaker I

Prof. Wei-Hsin Liao,
Ph.D., Fellow of ASME, Fellow of HKIE, Fellow of IOP
The Chinese University of Hong Kong, Hong Kong

Wei-Hsin Liao received his Ph.D. in Mechanical Engineering from The Pennsylvania State University, University Park, USA. Since August 1997, Dr. Liao has been with The Chinese University of Hong Kong, where he is currently the Associate Dean (Student Affairs), Faculty of Engineering. His research has led to publications of over 200 technical papers in international journals and conference proceedings, 16 patents in US, China, Hong Kong, Taiwan, Japan, and Korea. He was the Conference Chair for the 20th International Conference on Adaptive Structures and Technologies (ICAST 2009). He is the Conference Chair of Active and Passive Smart Structures and Integrated Systems, SPIE Smart Structures/NDE in 2014 and 2015. He received the T A Stewart-Dyer/F H Trevithick Prize 2005, awarded by the Institution of Mechanical Engineers (IMechE). In 2008, he received the Best Paper Award in Structures from the American Society of Mechanical Engineers (ASME). He also received the Best Paper Award in Automation in the 2009 IEEE International Conference on Information and Automation, and the Best Conference Paper Award in the 2011 IEEE International Conference on Mechatronics and Automation. Dr. Liao currently serves as an Associate Editor for Mechatronics, Journal of Intelligent Material Systems and Structures, as well as Smart Materials and Structures. Dr. Liao is a Fellow of ASME, HKIE, and IOP. Know more about Prof. Wei-Hsin Liao, Click.

Speech Title: Robotic Exoskeletons for Motion Assistance and Rehabilitation

Speech Abstract: Robotic exoskeletons have been developed for two main applications: human power augmentation, rehabilitation and healthcare. Robotic exoskeletons for rehabilitation and healthcare purposes are usually equipped with actuators at hip and knee joints in the lower limbs. For paralyzed patients who totally lost the mobility in their lower limbs, the exoskeleton suits are designed to assist their daily motions like stand up and walk. While for geriatric patients and other patients suffering from stroke or traumatic brain injury, the exoskeletons can be used in functional rehabilitation. The number of patients with paraplegia due to spinal cord injury has reached one million in Hong Kong and mainland China. Lives in the wheelchairs not only bring secondary complications like neuropathic pain and bladder complications to these paralyzed patients, but also may cause psychological problems like depression. We developed novel assistive devices for the welfare of these patients. With the developed robotic exoskeletons, paralyzed people could regain the ability to stand up and walk. This will bring them better life quality and social activities. On the other hand, the developed robotic exoskeletons can also be used in neurologic and orthopedic rehabilitation of mobility impaired patients. By providing user-adaptive assistance in gait training, robotic exoskeletons can help the patients achieve better recovery from gait disorder, and reduce the burden of physical therapists at the same time. In this talk, the developed devices/systems and key results will be presented.


Keynote Speaker II

Prof. SUN, Dong
Ph.D., Fellow of IEEE, Fellow of HKIE, P.Eng. (Canada), Member (ASME)
Head, Chair Professor of Biomedical Engineering, City University of Hong Kong, Hongkong

Prof. Dong Sun is currently a chair professor and head of the Department of Mechanical and Biomedical Engineering, City University of Hong Kong. He received his Bachelor and Master's degrees from Tsinghua University, and Ph.D. degree from the Chinese University of Hong Kong. He joined City University of Hong Kong in 2000. He has achieved world renown for his pioneering works in robotic single cell manipulation and control, with numerous outcomes in both fundamental and applied research. He received numerous best paper awards from the international journal and conferences, as well as industrial awards such as Hong Kong Awards for Industry. He served as an associate editor or technical editor for a number of international journals such as the IEEE Transactions on Robotics and IEEE/ASME Transactions on Mechatronics. He has organized several international flagship conferences as a General Chair, including 2013 IEEE International Conference on Nanotechnology, 2019 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), and 2019 Advanced and Intelligent Mechatronics (AIM). He is a member of the Science and Technology Committee of Education Ministry of China, and a member of Research Grant Council of Hong Kong. He is a Fellow of the IEEE and the Hong Kong Institute of Engineer (HKIE).

Speech Title: Toward in-vivo Transportation of Single Cells with a Robotic Manipulation System

Speech Abstract: In vivo manipulation of biological cells has attracted considerable attention in recent years. This process is particularly useful for precision medicine, such as cancer target therapy. Robotics technology is becoming necessary to stably and effectively manipulate and control single target cells in a complex in vivo environment. In this talk I will present a robot-aided optical tweezers-based manipulation technology that serves a function in the transport of single biological cells in vivo. An enhanced disturbance compensation controller will be introduced to minimize the effect of fluids (e.g., blood flow) on the cell. A collision-avoidance vector method will also be introduced for obstacle avoidance during the cell transportation. Experiments of tracking single target cells in living zebrafish embryos demonstrate the effectiveness of the proposed approach in a dynamic in vivo environment.


Keynote Speaker III

Prof. Shujiro Dohta, Okayama University of Science, Japan
Professor of Department of Intelligent Mechanical Engineering
Vice-president, Okayama University of Science, Japan

Shujiro Dohta was born in Hyogo Prefecture, Japan in 1949. He received his Bachelor and Master’s degrees from Okayama University, Japan in 1972 and 1974, respectively. He joined Okayama University of Science, Japan as a research associate in 1974. He stayed at Wright State University, Ohio, U.S.A. as an Exchange Faculty from 1984 to 1985. He received his doctor degree in Engineering from Kobe University, Japan in 1990. He is currently a professor of Department of Intelligent Mechanical Engineering, Okayama University of Science, Japan. He is also currently a Vice-president of the university. He started to research on Fluidics in 1972, especially a wall-reattachment fluidic device and a photo-fluidic interface. Then, his research interests have been moved to the pneumatic control component and mechatronic system. Now he studies on flexible pneumatic actuators, wearable control valves, flexible displacement sensors, and their applications to robotic systems and rehabilitation devices. He has published more than 160 referred papers in technical journals and conferences.
Prof. Shujiro Dohta is currently a member of The Japan Society of Mechanical Engineers (JSME), The Society of Instrument and Control Engineers (SICE), The Robotics Society of Japan (RSJ), and The Japan Fluid Power System Society (JFPS).

Speech Title: Development of Small-Sized Wearable Control Valve and Its Application

Speech Abstract: Recently, it has been strongly desired to develop a system to aid in nursing care and to support the activities of daily life for the elderly and the disabled. In such a control system, an actuator and a driving device such as a control valve are mounted on the human body. The purpose of our study is to develop a small-sized, lightweight, inexpensive control valve with lower energy consumption which can be mounted on the human body. Our key concepts to realize such a valve are as follows: 1) The force from the side is applied to the ball to make a driving force smaller. 2) The ball is set in the tube without any mechanical connecting part to realize "no sealing". 3) The self-holding function is added by using permanent magnets to save the energy. Based on these concepts, we have developed several kinds of small-sized on/off control valve. The first one is the valve which can be driven by a small vibration motor. The valve consists of a flexible tube, a steel ball, an orifice and a vibration motor set on the outer side of the tube. This valve does not have any mechanical sliding part, like a spool and plunger, and special sealing from the outside. The volume of the valve is 1 cc and the mass is only 2 g. The second one is the valve using a permanent magnet. The valve consists of a flexible tube, a magnetic ball, a cylindrical magnet and two solenoids. This valve has a self-holding function. The volume of the valve is 43 cc and the mass is 23 g. The third one is the valve using a permanent magnet and a tiny servo motor. The valve consists of a servo motor, a disk with two cylindrical magnets and eight check valves. These check valves are set vertically around the disk. We have also developed an analogue type control valve using a buckled tube. The valve consists of a tiny servo motor and two buckled tube. This valve can control the flow rate or pressure by changing a sectional area of the tube at the buckled point by means of the servo motor. This valve has some advantages: it is inexpensive, small-sized and applicable for any fluid. In this talk, the construction, operating principle, analytical model and fundamental characteristics of each tested valve will be presented. In addition, as an application of the valve, a position control system of a rubber artificial muscle is introduced.