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조성락(Sung Rag Cho),김주호(Ju Ho Kim),한규호(Kyu Ho Han),박인철(In Cheol Park),김순관(Soon Kwan Kim),양만석(Man Seok Yang),허갑도(Gap Do Hur),최환주(Hwan Joo Choi),지정희(Jung Hee Ji) 대한소화기학회 1989 대한소화기학회지 Vol.21 No.3
This paper describes a unique case of concurrent malignant lymphoma of the colon and small intestine. Primary gastrointestinal lymphoma primarily confined to gastrointestinal tract is relatively rare disease, and the concurrent lymphoma of colon and small bowel is very rare in reported cases. We experienced of malignant lymphoma of entire ileum and colon, especially cecum. Ileum was widely involved, and colonic lumen was stricture and mucosal fold was destructed by polypoid mass and ulceration. He was expired due to ileal perforation. We report this case with a review of the literature.
조성락(Sung Rag Cho),나산균(San Gyun Rha),문성수(Seong Soo Moon),한규호(Kyu Ho Han),박인철(In Cheol Park),김순관(Soon Kwan Kim),양만석(Man Seok Yang),허갑도(Gap Do Hur),최태룡(Tae Lyong Choi) 대한소화기학회 1991 대한소화기학회지 Vol.23 No.1
Unilobular atrophy or hypoplasia involving the hepatic lobes is not uncommon on the left side. It is distinctly uncommon on the right, where it probably represents an developmental anomaly if no other etiological factor is demonstrable. So we report a case of hypoplasia of right hepatic lobe.
조성락(Sungrak Cho),경진호(Jinho Kyung),노승국(Seungkook Ro),박종권(Jongkweon Park) 한국생산제조학회 2004 한국생산제조시스템학회 학술발표대회 논문집 Vol.2004 No.10
One of the obstacles for a magnetic bearing to be used in the wide range of industrial applications is the failure modes associated with magnetic bearings. These failure modes include power amplifier faults, position sensor faults, and the malfunction of controllers. Fault-tolerant magnetic bearing systems have been proposed so that the system can operate in spite of some faults. In this paper, we designed and tested a fault-tolerant magnetic bearing system. The system can cope with the actuator faults as well as the faults in position sensors, which are the two major fault modes in a magnetic bearing system.