http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
The High Temperature Oxidation Behavior of Diffusion Aluminized MarM247 Superalloy
Matsunaga, Yasuo,Matsuoka, Akira,Nakagawa, Kiyokazu 한국부식방식학회 2003 Corrosion Science and Technology Vol.2 No.1
The MarM247 based superalloy (8wt.%Cr- 9wt.%Co- 3wt.%Ta- 1.5wt.%Hf- 5.6%wt.Al- 9.5wt.%W- Bal.Ni) specimens were diffusion aluminized by for types of pack cementation methods, and their coating structure and their high temperature oxidation resistance were investigated. The coated specimens treated at 973K in high aluminum concentration pack had a coating layer containing large hafunium rich precipitates, which were originally included in substrate alloy. After the high temperature oxidation test in air containing 30 vol.% H₂O at 1273K - 323K, the deep localized corrosion which reached to the substrate were observed along with these hafnium rich precipitates. On the other hand, the coated specimens treated at 1323K using low aluminum concentration pack showed the coating layer without the large hafunium rich precipitates, and after the high temperature oxidation test at 1273K for 1800 ksec, it did not show the deep localized corrosion. The nickel electroplating before the aluminizing forms thick hahium free area, and its high temperature oxidation resistance were comparable to platinum modified aluminizing coatings at 1273K.
Gastric Adenocarcinoma with Thymic Metastasis after Curative Resection: A Case Report
Matsunaga, Tomoyuki,Saito, Hiroaki,Miyatani, Kozo,Takaya, Seigo,Fukumoto, Yoji,Osaki, Tomohiro,Ikeguchi, Masahide The Korean Gastric Cancer Association 2014 Journal of gastric cancer Vol.14 No.3
The peritoneum is the most frequent site of recurrence for gastric cancer after gastrectomy, followed by the liver and lymph nodes. In contrast, metastasis to the thymus is rare. Annual surveillance with computed tomography was performed on a 67-year-old man who previously underwent a distal gastrectomy and D2 lymph node dissection for gastric cancer at Tottori University. Five years after the initial operation, an anterior mediastinal tumor was detected by computed tomography. The patient underwent video-assisted thoracic surgery to remove the tumor. Histopathology revealed adenocarcinoma cells similar to those of the gastric cancer resected 5 years previously. Thymic metastasis was considered likely based on the location of the tumor. The recognition that gastric cancer can metastasize to unusual anatomic locations, such as the thymus, can facilitate an accurate, prompt diagnosis and appropriate treatment.
Evaluation of Multilayered Pain Sens or Model of Human Skin
Nobutomo MATSUNAGA,Aydin Tarik ZENGIN,Shigeyasu KAWAJI 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
In the coexistence circumstance with humans and robots, sensory and emotional feelings of human should be considered incase of interaction. A typical unpleasant feeling that stems from this interaction is pain. We have developed a new multi-layered pain sensor similar to the laminated structure of human skin, to clarify this feeling which is abstract for robots. The dynamical characteristics of this sensor in either cases of slow and fast stimuli were evaluated in experiments. For both cases, the pain sensor showed a similar reaction with real human measurements.