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The Division of Biological Engineering was established in 2003(The predecessor is Div. of Computer Science established in 1980) for the purpose of analyzing biological data and providing instruction. The Division boasts the latest computer equipments linked to UNIX servers, AD converters, image input device, and various output devices. The Division performs analyses on a wide range of medical data and also provides tuition to undergraduate and postgraduate students on information science for medical professionals.
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Associate Professsor : Yoshiro Ehara, Dr. Eng. Dr. Med.
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The Division of Biological Engineering conducts research in three main areas. The first area looks at the question of how useful information is extracted from the biological signals. In medical fields, the question of how to detect biological signals concealed by noise is a key to neurological research and clinical diagnosis. Furthermore, because biological signal is often irregular, analysis of signal features requires mathematical treatments for both stationary and non-stationary stochastic processes.
The Division also performs research into the mechanisms of biofunction, developing mathematical models for computer simulation. Finally, the Division performs statistical analysis of various forms of medical data.
The main techniques developed by the Division are:
1) Digital filtering techniques for biological signal (time invariant and time variant signal);
2) Adaptive signal processing based on fuzzy rules;
3) Time-varying spectrum analysis for biological signal; and
4) Pattern recognition based on neural networks.
Topics analyzed using the above techniques include: auditory evoked responses; otoacoustic emissions; fetal heart rate fluctuation; sleep spindle waves; paroxysmal abnormality of EEG; hypokinetic dysarthria and voice tremor; behavioral states of fetal goats in artificial extrauterine incubation; and statistics on sudden death.
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