Biomechanics Group Institute of Biomedical Engineering University of Oxford ------------------------------------- Center for Neuroinformatics BioX Laboratory Zhejiang University
liyu.wang@wadh.oxon.org
A life traveler with amazing human locomotion A passionate soul to search its location in the brain A fresh wind to chase truth and freedom A Chinese revolutionist in technology
Abstract: Based on the research on mechanism of biological olfactory system, we constructed a K-set, which is a novel bionic neural network. Founded on the groundwork of K0, KI and KII sets, the KIII set in the K-set hierarchy simulates the whole olfactory neural system. In contrast to the conventional artificial neural networks, the KIII set operates in nonconvergent 'chaotic' dynamical modes similar to the biological olfactory system. In this paper, an application of electronic nose-brain for tea classification using the KIII set is presented and its performance is evaluated in comparison with other methods.
Notes: primary exploration to human visual neural network
Abstract: I attended the CCTV 'Pigeon' media writing competition for school students in 1996, and wrote a story of a touching interaction between two students who had a big argument before. The story was selected into the book published in 1998.
Abstract: Ever since the word 'ROBOT' first appeared in a science fiction in 1921, scientists and engineers have been trying different ways to create it. Present technologies in mechanical and electrical engineering makes it possible to have robots in such places as industrial manufacturing and assembling lines. Although they are essentially robotic arms or similarly driven by electrical power and signal control, they could be treated the primitive pioneers in application. Researches in the laboratories go much further. Interdisciplines are directing the evolution of more advanced robots. Among these are artificial intelligence, computational neuroscience, mathematics and robotics. These disciplines come closer as more complex problems emerge.
From a robot's point of view, three basic abilities are needed. They are thinking and memory, sensory perceptions, control and behaving. These are capabilities we human beings have to adapt ourselves to the environment. Although researches on robots, especially on intelligent thinking, progress slowly, a revolution for biological inspired robotics is spreading out in the laboratories all over the world.
Notes: Tea Classification Based on Artificial Olfaction Using Bionic Olfactory Neural Network,
Biomechanics research
Abstract: The project was initiated by the Civil Engineering Group in the Department of Engineering Science. It addresses the problem of how the forces between the feet and the ground (ground forces) are related to human upper body movement during jumping and bobbing. There was a lack of information about whether we could estimate the forces placed on a structure such as a grandstand by tracking movements of the people who walked, jumped, or bobbed on the structure. To this end, experimental work was performed in the Oxford Gait Laboratory.
The testing part of the project involved volunteers jumping and bobbing in the gait lab. Infrared reflective markers were attached to major bony landmarks on the subject's body. The subjects jumped or bobbed to the beep of a metronome set at frequencies between 90 and 180 beats per minute. The movement of the subjects was recorded by means of 12 infrared cameras as part of Vicon motion capture system. The ground reaction force induced by each subject will be measured by force plates.
The result provides important data which be of direct interest to both structural engineers and safety system designers. Ultimately, the project will benefit the safety of the many people who attend sports and music events in modern stadia. The work will also make an important contribution to the wider body of knowledge on human body movement and human-structure interaction, as well as bionic design for humanoid robots.
Abstract: Invited comment in a news report on a social problem caused by individual's occupation of public squares in the city of Guangzhou, where I compared the operation systems for individual's use of public places in China and the UK.
