Hiroaki Tsutsui

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In this paper, a fuzzy modeling method using genetic algorithms (GAs) with a conciseness measure is presented. This paper introduces De Luca and Termini's fuzzy entropy to evaluate the shape of a membership function, and proposes another measure to evaluate the deviation of a membership function from symmetry. A combined measure is then derived from these(More)
The purpose of this study was to investigate glenohumeral translation in-vivo during active shoulder abduction in the scapular plane. Three-dimensional (3D) models of 9 shoulders were created from CT scans. Fluoroscopic views aligned to the plane of the scapula were recorded during active arm abduction with neutral rotation. 3D motions were determined using(More)
The objective of this work is to discuss the concept of HVDC link with energy storage, especially with superconducting magnetic energy storage (SMES). The SMES will be one of the candidates as a power storage system for load leveling and power stabilization. Using superconducting coils instead of DC reactors, the SMES can be incorporated into the HVDC link.(More)
Radiographic examination of the anterior part of the shoulder includes routine anterior-posterior imaging that enables easy visualization of traumatic injuries and true anterior-posterior imaging that enables the visualization of intra-articular injuries. The X-ray incident angle of true anterior-posterior imaging is affected by physique and posture.(More)
SUMMARY An emitter coupled logic (ECL) compatible low-power GaAs 8 : 1 multiplexer (MUX) and 1 : 8 demultiplexer (DEMUX) for 10-Gb/s optical communication systems has been developed. In order to decrease the power consumption and to maximize the timing margin, we estimated the power consumption for direct-coupled FET logic (DCFL) and source-coupled FET(More)
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