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Furuta Satoshi,Masuda Shinsuke 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1
Free-machining agent 'KSX' contains complex calcium oxide is developed. The effect of admix ratio of KSX on mechanical properties and machinability with two different cutting speeds is reported. KSX displays improved machinability without deterioration of mechanical properties up to 0.3mass% addition. It was observed that KSX is effective with a small addition of 0.1mass% at slower cutting speed, and increased of admix ratio is effective at faster cutting speed.
Property of New SEGLESS that is Segregation-free Steel Powder Mixture for Warm Compaction
Nishida Satoshi,Furuta Satoshi 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1
Recently warm compaction techniques are focused on and commercialization of one high-density compaction process in the P/M industry. Another development is a new SEGLESS using a developed lubricant that reduces ejection force at room temperature compaction. It is possible to achieve high-density by reducing lubricant amount. In this paper we confirmed that green density was 7.35 g/cm3 at 686MPa of compaction pressure when the new SEGLESS was applied to relatively lower temperature warm compaction process, such as 80℃.
Human Behavior Characterizing based on Line-of-Sight for Human Adaptive Mechatronics
Satoshi Suzuki,Fumio Harashima,Katsuhisa Furuta 한국과학기술원 인간친화 복지 로봇 시스템 연구센터 2006 International Journal of Assistive Robotics and Me Vol.7 No.1
In this paper, characterization of human behavior to estimate human skill-level, which is a significant item to achieve the Human Adaptive Mechatronics (HAM), is considered. The characterizing of an operator"s manipulation is done by utilizing a discrete state-transition model based on line-of-sight information. In order to obtain experimental data to evaluate the proposed method, a human-machine experimental measurement system for a tele-operation robot system was devised. We confirmed that automatic characterizing of operator"s behavior for estimation of the skill is possible by checking of combination of transition states of eye-gaze patterns, operator"s actions and robot status.
Structural Design of High-Rise Concrete Condominium with Wall Dampers for Vibration Control
Tsushi, Takumi,Ogura, Fumitaka,Uekusa, Masahiro,Kake, Satoshi,Tsuchihashi, Toru,Yasuda, Masaharu,Furuta, Takuya Council on Tall Building and Urban Habitat Korea 2019 International journal of high-rise buildings Vol.8 No.3
This paper presents a structural design of the "(Tentative Name) Toranomon Hills Residential Tower" which is currently under construction in Tokyo. The building is a reinforced concrete high-rise residential complex building with 54 stories above ground, 4 basement levels, and a building height of about 220 m. It is a requirement to provide the highest grade of residence in Japan, and in terms of the structural design, it is required to provide wide and comfortable spaces with high seismic performance. These requirements are satisfied by providing a total of 774 vibration control walls of two types. Also, to further improve the structural performance, steel fibers at the rate of 1.0vol% are provided in the ultra-high strength concrete used in the column members.