• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2005년도 춘계 학술발표회 논문집
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• pp.17-24
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• 2005

Recently construction activities increase in reclaimed onshore areas. It is therefore considered an important factor for the design of pile foundation with problems in terms of settlements due to soft grounds. Nevertheless the design of piles for negative skin friction(or downdrag forces) is probably poorly understood by many engineers. It is mainly because the most of design specification give a way to design pile foundation in bearing capacity aspect although the negative skin friction is related to settlement(downdrag). Under LRFD(load resistance factor design) approach it is to separately consider ultimate limit state and serviceability limit state. This paper discusses LRFD approach to the design of piles for negative skin friction and compares this approach to traditional design approach. And also a case history is analyzed in that point of view.

• Journal of Chest Surgery
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• 제54권2호
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• pp.99-105
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• 2021

Background: The number of heart transplantations (HTx) is increasing annually. Due to advances in medical and surgical support, the outcomes of HTx are also improving. Extracorporeal circulatory life support (ECLS) provides patients with decompensated heart failure a chance to undergo HTx. A medical approach involving collaboration among experienced experts in different fields should improve the outcomes and prognosis of ECLS-bridged HTx. Methods: From December 2003 to December 2018, 1,465 patients received ECLS at Samsung Medical Center. We excluded patients who had not undergone HTx or underwent repeated transplantations. Patients younger than 18 years were excluded. We also excluded patients who received an implantable durable left ventricular assist device before HTx. In total, 91 patients were included in this study. A multidisciplinary team approach began in March 2013 at our hospital. We divided the patients into 2 groups depending on whether they were treated before or after implementation of the team approach. Results: The 30-day mortality rate was significantly higher in the pre-ECLS team group than in the post-ECLS team group (n=5, 18.5% vs. n=2, 3.1%; p=0.023). The 1-year survival rate was better in the post-ECLS team group than in the pre-ECLS team group (n=57, 89.1% vs. n=19, 70.4%; p=0.023). Conclusion: We found that implementing a multidisciplinary team approach improved the outcomes of ECLS-bridged HTx. Team-based care should be adapted at HTx centers that perform high-risk HTx.

• Journal of Trauma and Injury
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• 제34권2호
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• pp.105-111
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• 2021

Purpose: Open extremity fractures require prompt antibiotic medication and initial debridement surgery to reduce the infection rate and restore functional stabilization. We aimed to report the effects and positive outcomes of a trauma team approach on the management of open extremity fractures in polytrauma patients. Methods: This retrospective review included all polytrauma patients with open extremity fractures admitted between March 2009 and December 2019. Patients were divided into two groups according to whether they were treated before or after the implementation of the trauma team approach (March 2014). We analyzed the outcomes in each group with respect to the time interval until the doctor's arrival, total length of stay in the emergency department, the time interval until initial antibiotic treatment and operation, whether the initial operation was performed within 24 hours, and the rate of deep infections. Results: A total of 123 patients met the inclusion criteria. There were no statistically significant differences in demographic characteristics. The time interval until the doctor's arrival (64.12±49.2 minutes vs. 19.82±15.23 minutes; p=0.035) and initial antibiotic treatment (115.47±72.12 minutes vs. 48.78±30.12 minutes; p=0.023) significantly improved after implementing the trauma team approach. The union rate was not significantly different. However, the time interval until initial debridement, opportunity for initial debridement within 24 hours, and the rate of deep infections demonstrated better results. Conclusions: The reduced time interval until initial antibiotic treatment and debridement could be attributed to the positive effect of the trauma team approach on the management of open extremity fractures in polytrauma patients.

• 한국군사과학기술학회지
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• 제27권2호
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• pp.213-221
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• 2024

Aircraft's operational effectiveness is reduced due to threats from enemy anti-aircraft weapons, which is a weak point. In particular, guided missiles, which pose a threat to aircraft, are rapidly developing due to technological advancements in seekers, and are classified as one of the important technologies in weapon systems. Missile approach warning equipment installed to ensure aircraft survivability detects guided missiles and provides relevant information to respond. Tests were conducted domestically to verify the detection level of missile approach warning equipment, and test results were presented under various test conditions.

• 한국도서관정보학회지
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• 제35권4호
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• pp.23-40
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• 2004

본 연구는 팀제를 실시하고 있는 전국의 대학도서관을 대상으로 팀제의 운영방식(도입과정, 팀원의 재량권, 팀장의 리더십, 팀의 자유로운 의사소통, 도서관장의 의지)이 팀 효과성(환경적응성, 직무만족, 팀 분위기, 비용절감)에 미치는 영향을 실증적으로 분석한 것이다. 분석을 위한 데이터는 대학도서관의 직원으로부터 회수된 설문지를 기초로 하였다. 연구결과 팀제의 운영방식 중 도입과정과 도서관장의 의지는 팀의 효과성 가운데 환경적응성, 직무만족, 비용절감에 모두 영향을 미치는 것으로 나타났고, 의사소통은 직무만족과 팀의 분위기에 영향을 미치는 것으로 나타났다.

• 한국미생물학회:학술대회논문집
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• 한국미생물학회 2005년도 International Meeting of the Microbiological Society of Korea
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• pp.200.1-200
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• 2005

• 한국도서관정보학회지
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• 제35권2호
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• pp.415-436
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• 2004

본 연구에서는 크게 다음과 같은 두 가지 목적을 갖고 있다. 첫째, 지식경영과 지식관리시스템에 대한 이해를 바탕으로 방송사의 지식경영 및 지식관리시스템 도입을 제안하고, 방송사에 적합한 하부시스템을 갖춘 통합지식관리시스템 구축 모형을 제안하고자 한다. 둘째, 조직의 지식관리시스템 설계와 개발을 위한 방법론으로 팀 기반 접근에 대하여 설명하고 지식관리시스템 구축 프로젝트 과정에 대하여 자세하게 제시하고자 한다. 본 논문에서는 방송사의 지식관리시스템 구축에 목적을 두고 이를 위해 6개 방송사의 웹 사이트를 비교 분석을 하였다. 그리고 방송사에 관한 자료 수집 및 현황분석을 토대로 방송사의 지식관리시스템을 5가지의 하부시스템인 (1)방송기술지원시스템, (2)방송컨텐츠시스템, (3)고객관리시스템, (4)열사네트워크시스템, (5)인사 관리시스템을 포함한 통합관리시스템의 모형을 제안하였다. 한편, 본 연구에서 사용한 팀 기반 접근법은 다른 조직의 지식관리시스템 구축에도 적용 가능하다고 본다.

• Journal of Korean Biological Nursing Science
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• 제21권3호
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• pp.199-206
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• 2019

Purpose: The purpose of this paper was to verify effects of the team approach rehabilitation program on balance, gait, and muscle strength of lower extremities of elderly people with Parkinson's disease. Method: Subjects of this paper were 40 elderly people with Parkinson's disease, 20 control and experimental groups respectively, who could walk independently and were less than the 2.5 Hoehn &Yahr stage. The team approach rehabilitation program was applied to the experimental group for 12 weeks. Results: There was significant decrease in second at timed up &go test (p= .008), but no significant difference in reach length at functional reach test (p= .201) with partial improvement of balance. There was no significant difference in second at 10-meter walk test (p= .070), but showed tendency of improvement of gait. And number of times at 30s-chair stand test, indicating muscle strength on lower extremities, increased significantly (p= .029), Conclusion: The team approach rehabilitation program has demonstrated its effectiveness on improving balance, and muscle strength of lower extremities for the elderly with Parkinson's disease.

• 한국안전학회지
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• 제11권2호
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• pp.150-159
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• 1996

본 연구에서는 하부구조적 결함을 갖는 전력계통의 정태 안전성 평가를 고려한 무효전력 제어 문제를 해결하기 위하여 A-team(Asynchronous team) 이론을 이용한 접근법을 제시한다. QVC는 무효전력 발전량, 전압치, 선로조류 및 다른 무효전력장치에 대한 제약조건하에서 최적의 전압을 유지하는 문제로써, 해의 정확도를 크게 해치지 않는 범위내에서 혼합정수계획법(MILP) 문제로 수식화 하였다. 안전성 평가는 계통의 모니터링을 통하여 얻어진 현재의 자료를 평가하여 상대적 강인성을 추정하는 것으로 교류 전력조류법에 기반을 둔 결정론적인 방법에 의해 계통안전성, 특히 전압안전성을 평가하였으며, 이진치 대신에 다수의 이산치를 제공하는 안전성 계량을 사용하였다. 계통의 효율적 운전을 목적으로 위의 두 문제를 통합하여 풀 수 있도록 A-team으로 명명된 새로운 조직기법을 도입하였다. A-team은 자치적(autonomous)이고, 병렬적으로(in parallel) 동작하고, 비동기적으로(asynchronously) 정보교환을 하는 agent들을 위 한 일종의 조직법으로 다수의 프로그램 (computer-based multi agent)을 이 용한 운용시스템의 구성에 적합한 방법으로 알려져 있다. 이 A-team을 이용한 방법은 실계통에 적용하기 위한 초기단계에 머무르고 있으나 대형계통의 여러 복잡한 문제를 해결할 수 있는 가능성을 갖고 있다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2001년도 하계학술대회 논문집 A
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• pp.258-260
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• 2001

This paper describes the definition of a substation automation system and presents core components and its layered structure based on the modular approach. Also it introduces the implementation and deployment of our substation automation system which was adopted to the field recently.