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동정맥루 수술 후 불충분한 유출로에 대한 복합 이식편의 이용 : 2 예 보고
김용수,이홍기,권오정,곽진영 대한혈관외과학회 2001 Vascular Specialist International Vol.17 No.2
Maturation failure after creation of autogenous arterio-venous fistula (AVF) is closely related to unrecognized stenosis or sclerosis of outflow veins. To address this problem, we chose to salvage a segment of venous conduit. A 51 year-old male patient underwent an AVF operation at the snuffbox. Post- operatively, fistula flow was not well developed on the upper forearm despite venous dilatation up to the dorsal radial branch of cephalic vein. After 3 weeks, a graft was inserted between the dilated cephalic vein and antecubital vein. The other patient was a 71 year-old man who underwent an AVF operation above the left wrist. Despite partial dilatation of veins near the anastomosis, flow was not well developed on the upper forearm. After 8 days, a graft was inserted between the dilated cephalic vein and antecubital vein. In summary, we interposed a segment of synthetic graft between dilated veins for primary maturation failure of autogenous AVF. This composite graft configuration may have advantage over total graft configuration, which should be confirmed by further study.
연속 연소장치에 있어서 화염의 안전성에 관한 실험적 연구
김용수,이근오,양옥용 한국산업안전학회 1987 한국안전학회지 Vol.2 No.1
An experimental study was made of flame stabilization in unconfined turbulent swirling propane gas flames using various degrees of swirl and equivalence ratios. This study was carried out to investigate the effects of swirl number and equivalence ratio on the flow characteristics and the combustion characteristics in both nonreacting and reacting flow field of the model combustor which symplifys the continuous type combustor for the practical use.
The Ecology of Medical Care in Korea
김용수,최용준 대한의학회 2016 Journal of Korean medical science Vol.31 No.11
This study aimed to describe the ecology of medical care in Korea. Using the yearly data of 2012 derived from the Korea Health Panel, we estimated the numbers of people per 1,000 residents aged 18 and over who had any health problem and/or any medical care at a variety of care settings, such as clinics, hospitals, and tertiary hospitals, in an average month. There was a total of 11,518 persons in the study population. While the number of those who had any health problem in an average month was estimated to be 939 per 1,000 persons, the estimated numbers of ambulatory care users were 333 at clinics, 101 at hospital outpatient departments, 35 at tertiary hospital outpatient departments, and 38 for Korean Oriental medical providers. The number of people who used emergency care at least once was 7 per 1,000 persons in an average month. The numbers of people hospitalized in clinics and hospitals were 3 and 8, respectively, while 3 persons were admitted to tertiary hospitals. There was a gap between the number of people experiencing any health problem and that of those having any medical care, and primary care comprised a large share of people’s medical care experiences. It was noteworthy that more patients received ambulatory care at tertiary hospitals in Korea than in other countries. We hope that discussion about care delivery system reform and further studies will be encouraged.
김용수,권오헌 한국안전학회 2002 세이프티 월드 Vol.2 No.1
용접작업공정은 기본적으로 2개 이상의 부재인물체나 재료를 상호 접합시키는 공정으로서 산업의 광범위한 분야에 이용되고 있다. 특히, 각종 설비, 교량의 구축 등에 필수적이며, 최근 고강도화, 경량화, 초정밀화를 추구하는 자동차, 항공기, 전자 및 광학기기, 가전제품 및 산업용기기 등의 품질경쟁력이 가공기술에 좌우됨에 따라 첨단 용접가공 프로세스가 개발되어 사용되고 있으나 대부분의 산업현장에서는 아직도 종래의 가스용접 및 전기용접장치를 많이 사용하고 있다. 따라서 산업현장의 실태는 유해.위험공정인 용접작업에 의하여 여전히 재래식 재해가 발생되어 사망 및 신체장애 재해가 다발하고 있다. 여기서는 교류아아크 용접작업과 $CO_2$ 아아크 용접작업 재해의 예방기술에 대하여 간략히 소개한다. 게재된 내용은 한국산업안전공단에서 제공된 자료를 발췌 정리한 것이다.(중략)