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높은 우선순위의 비주기적 태스크 그룹을 위한 리눅스 스케줄러 확장
김영승 ( Young-seung Kim ),조현철 ( Hyun-chul Jo ),진현욱 ( Hyun-wook Jin ),이상일 ( Sang-il Lee ) 한국정보처리학회 2014 한국정보처리학회 학술대회논문집 Vol.21 No.1
임베디드 소프트웨어는 국방, 항공 우주, 자동차와 같이 다양한 응용분야에서 그 중요성이 부각되고 있다. 이와 함께 시스템 자원의 효율성을 높이고 응용 소프트웨어 간 안전한 실행환경을 제공하기 위해서 자원 파티셔닝의 필요성이 강조되고 있다. 최근 임베디드 시스템의 응용 분야가 다양해지면서 주기적인 파티션과 함께 비주기적인 파티션들에 대한 요구가 증가하고 있다. 하지만 기존 시스템들은 비주기적인 파티션은 고려하고 있지 않거나, 주기적인 파티션에 비해서 우선순위가 낮게 취급하고 있다. 이러한 문제를 해결하기 위해서 본 논문은 높은 우선순위의 비주기적인 태스크 그룹을 지원하기 위한 구조를 제안하고, 리눅스의 cgroup 프레임워크를 확장하여 구현한다.
고프롤락틴혈증과 동반된 부신피질자극 호르몬 단독 결핍 1 예
박강서,김대수,김영승,안전옥,윤상정,장희철,김광일 대한내분비학회 1997 Endocrinology and metabolism Vol.12 No.3
Isolated ACTH deficiency is a uncommon disorder causing secondary adrenocortical insufficiency. Less than 200 cases have been reported in the world. The major clinical manifestations are hypoglycemia, weight loss, hypotension, anemia, weakness, nausea, inability to excrete water load, and hyponatremia. A 56-year-old male was admitted because of weakness, fatigue, nausea and vomiting. He was pallor and not associated with hyperpigmentation. The basal plasma ACTH and cortisol levels were 8.30 pg/ml and 0.6 ug/dl. The serum cortisol did not response to rapid ACTH stimulation test. On combined pituitary stimulation test, the cortisol did not response to insulin-induced hypoglycemia. Other anterior pituitary hormones showed normal responses except elevated prolactin level. Six months after glucocorticoid replacement therapy, the elevated basal prolactin level returned to normal. Brain MRI did not show any anatomic abnormalities of the sellar and suprasella area. We report a case of isolated ACTH deficiency accompanied by hyperprolactineia, which respond to glucocorticoid replacement therapy. (J Kor Soc Endocrinol 12:462-467, 1997)
Mirizzi 증후군과 동반된 황색육아종성 담낭염 1예
박성규,한현영,양기화,최덕례,최현,김대수,김영승,안전옥,윤상정,장희철,이미화,강윤중 대한소화기학회 1999 대한소화기학회지 Vol.34 No.1
Xanthogranulomatous cholecystitis is an uncommon benign inflammatory disease of the gallbladder characterized histopathologically by extensive lipid-containing histiocytes. It has been usually mistaken for gallbladder cancer due to diffuse wall thickening of gallbladder with peripheral infiltration radiographically. Xanthogranulomatous cholecystitis has been reported to combine cholelithiasis frequently. A 59-year-old man was admitted with jaundice and right upper quadrant pain. By abdominal ultrasonogram, computed tomography scan, cholangiogram, and repeated biopsy, his case was diagnosed as xanthogranulomatous cholecystitis associated with Mirizzi syndrome. An exploratory laparatomy was performed. On operation, the gallbladder wall was irregularly markedly thickened and multiple stones existed in the gallbladder. The largest one (2×1.5×1.5 cm) of these stones was impacted in necrotic defect site between gallbladder wall and common hepatic duct wall, and it partially obstructed (80%) the common hepatic duc Partial cholecystectomy with T-tube drainage was performed. Postoperatively, we diagnosed this case as xanthogranulomatous cholecystitis associated with Mirizzi syndrome.