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A Communication Device for Disabled with Slight Movement Capabilities
Yoshio FUKUDA,Motohiro TANAKA,Shunji MOROMUGI,Takakazu ISHIMATSU 한국과학기술원 인간친화 복지 로봇 시스템 연구센터 2003 International Journal of Assistive Robotics and Me Vol.4 No.4
A communication device for seriously disabled people with slight movement capabilities is proposed. This device has been developed mainly for patients suffering from ALS or a cerebral infarction. They often have communication difficulties due to the disorders of muscular functions. The key features of this device are; it is wearable, and it detects the eyebrow movements. These features lead to convenient installation of sensor on the patient"s body, unlike the conventional systems. Adaptive communication software is also incorporated. A feature of this software is that the arrangement and size of the button and window on the display can be optimized depending on the user"s physical ability. In the field test, the proposed device has demonstrated its capability in helping seriously disabled people to improve their communication abilities.
A Rare Case of Lymph Node Metastasis from Early Gastric Cancer
Takaaki Yoshikawa,Yoshio Kadokawa,Masaya Ohana,Akihisa Fukuda,Hiroshi Seno 대한소화기내시경학회 2019 Clinical Endoscopy Vol.52 No.4
Gastric cancers that fulfill the Japanese criteria for curative endoscopic resection show a low risk of lymph node (LN) metastasis. Here,we report a case of LN metastasis from early gastric cancer that fulfilled the curative criteria. A 74-year-old Japanese woman wasreferred to our hospital for treatment of early gastric cancer identified at the site of a hyperplastic polyp that had been diagnosed 10years prior to presentation. Contrast-enhanced computed tomography did not show any lymphadenopathy and laparoscopy-assisteddistal gastrectomy was performed. Histopathological examination revealed a predominantly moderately differentiated adenocarcinomathat measured 15 mm in size and was confined to the mucosa. However, a single metastatic regional LN was observed. A few cancercells showed positive staining for alpha-fetoprotein. It should be noted that early gastric cancer can be accompanied by LN metastasiseven if it fulfills the criteria for curative endoscopic resection.
Jong Jae Lee,Yoshio Fukuda,Masanobu Shinozuka,조수진,윤정방 국제구조공학회 2007 Smart Structures and Systems, An International Jou Vol.3 No.3
For structural health monitoring (SHM) of civil infrastructures, displacement is a good descriptor of the structural behavior under all the potential disturbances. However, it is not easy to measure displacement of civil infrastructures, since the conventional sensors need a reference point, and inaccessibility to the reference point is sometimes caused by the geographic conditions, such as a highway or river under a bridge, which makes installation of measuring devices time-consuming and costly, if not impossible. To resolve this issue, a vision-based real-time displacement measurement system using digital image processing techniques is developed. The effectiveness of the proposed system was verified by comparing the load carrying capacities of a steel-plate girder bridge obtained from the conventional sensor and the present system. Further, to simultaneously measure multiple points, a synchronized vision-based system is developed using master/slave system with wireless data communication. For the purpose of verification, the measured displacement by a synchronized vision-based system was compared with the data measured by conventional contact-type sensors, linear variable differential transformers (LVDT) from a laboratory test.
Lee, Jong Jae,Fukuda, Yoshio,Shinozuka, Masanobu,Cho, Soojin,Yun, Chung-Bang Techno-Press 2007 Smart Structures and Systems, An International Jou Vol.3 No.3
For structural health monitoring (SHM) of civil infrastructures, displacement is a good descriptor of the structural behavior under all the potential disturbances. However, it is not easy to measure displacement of civil infrastructures, since the conventional sensors need a reference point, and inaccessibility to the reference point is sometimes caused by the geographic conditions, such as a highway or river under a bridge, which makes installation of measuring devices time-consuming and costly, if not impossible. To resolve this issue, a visionbased real-time displacement measurement system using digital image processing techniques is developed. The effectiveness of the proposed system was verified by comparing the load carrying capacities of a steel-plate girder bridge obtained from the conventional sensor and the present system. Further, to simultaneously measure multiple points, a synchronized vision-based system is developed using master/slave system with wireless data communication. For the purpose of verification, the measured displacement by a synchronized vision-based system was compared with the data measured by conventional contact-type sensors, linear variable differential transformers (LVDT) from a laboratory test.