1989 Fiscal Year Final Research Report Summary
Development of High-Speed Information Processing System and Its Application of Biological Signal Processing System
| Project/Area Number |
62580023
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
Informatics
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| Research Institution | The University of Tokushima |
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Principal Investigator |
AKAMATSU Norio The University of Tokushima, Department of Information Science, Professor, 工学部, 教授 (20035629)
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| Co-Investigator(Kenkyū-buntansha) |
AKAMATSU Norio The University of Tokushima, Department of Information Science, Professor (20035629)
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| Project Period (FY) |
1987 – 1989
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| Keywords | information processing system / electrophysiological disorders / isopotential maps / data presentation system / parallel processing / arithmetic processing / heart potential distribution / Computer simulation |
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| Research Abstract |
We have developed a high-speed information processing system which is shown to improve the diagnostic accuracy of certain cardiac electrophysiological disorders. However, it is a difficult and laborious task to correctly attach a large number of electrodes to a subject's body surface. We have developed a system with composite electrodes which simplifies this task and provides reliable and reproducible EKG data. In order to display isopotential maps dynamically, we have developed a high- speed data acquisition and graphic display system based on parallel processing techniques. Clinical application of this electrocardiographic mapping system should significantly increase the understanding of certain heart diseases. The data presentation system consists of 16 parallel processing elements. Each processing element includes a local CPU and arithmetic processing unit (APU). Double parallel processing can be accomplished between the local CPU and APU in each processing element. By applying this double parallel processing technique we can achieve the dynamical display of heart potential distribution with good precision.
A new model based on the theory of dynamical system is proposed for the intrinsic random mechanism underlying certain types of muscular tremor. The active length-tension curve of the individual sarcomere, in conjunction with the passive length-tension relation is a map from length to tension with an observed time delay between length change and resulting tension change. The passive length tension change back to a change in length. The stability properties of this iterated interval map are investigated by means of computer simulation.
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Research Products
(12 results)
