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HIGH VOLTAGE (8kV-1KA) GTO WITH LOW LOSSES.
Tetsuro SUEOKA,Mitsuru KEKURE,Shinzi IHRANO 전력전자학회 1989 ICPE(ISPE)논문집 Vol.- No.-
The manufacturing process of GTO with high forward clocking voltage was established. For this proce&s, the method to prevent the increase of the conduction and switching loss has been developed. The new GTO is composed by the PIN- based structuie with N-buffer layer and ringed anode emitter short. By this technique, we achieved the high blocking voltage of 8kV whose conduction and switching loss are almost as low is that of 4.5kV GTO.
( Tetsuro Akashi ),( Kazuhide Matsumoto ),( Risa Hashimoto ) 한국임상영양학회 2017 Clinical Nutrition Research Vol.6 No.4
Gastro-esophageal reflux (GER) is a common and serious complication in patients receiving enteral nutrition, making continuation of enteral nutrition difficult. Semi-solid enteral nutrients were developed to prevent feeding-related GER. Semi-solid enteral nutrients have high viscosity and, therefore, are typically administered through a large-diameter percutaneous endoscopic gastrostomy (PEG) tube. Recently, a new formula (Mermed<sup>®</sup>, Mermed Plus<sup>®</sup>) was introduced that uses alginate, which behaves like a gelatin in acidic conditions. This formula improved GER during enteral feedings. Our case report shows that this new formula enables the continuation of enteral nutrition via a nasogastric tube (NGT) in patients with difficulty tolerating enteral nutrition secondary to vomiting. An 86-year-old woman with an atherothrombotic cerebral infarction vomited during tube feeding, resulting in aspiration pneumonia. After 1 week, we introduced a viscosity regulator and restarted enteral feeding using a 100 mL liquid diet, but vomiting persisted. Because of the continued difficulty in tolerating enteral nutrition, the patient was transferred to our hospital. From hospital day 4, Mermed Plus<sup>®</sup> (300 mL/225 kcal, administered for 1 hour, 3 times a day) was started, eventually increasing to 535 mL/400 kcal at hospital day 5. After this, vomiting ceased. Mermed Plus<sup>®</sup> was easily administered via NGT, and its effects were immediate. This treatment appeared to improve the patient's quality of life while reducing the burden on medical staff.
Development of Concurrent Design Environment Using Super High Definition Image
Tetsuro Ogi,Daisuke Tsubouchi (사)한국CDE학회 2010 한국CAD/CAM학회 국제학술발표 논문집 Vol.2010 No.8
Though the concept of concurrent design has spread and various design tools have been used, the design environment that supports the designers’ collaborative work has not been discussed enough. In this study, CDF (Concurrent Design Facility) was developed as a collaborative design environment in which designers, researchers and managers can discuss with each other while sharing the necessary data. The feature of CDF is that the users can share the intuitive, accurate and high presence information by using the super high definition stereo image projected by 4K projectors. In this study, as the mechanisms of sharing images between the center screen and each user’s terminal, command capture method and screen capture method were introduced, and the effectiveness of these methods for the collaborative work was evaluated.