• Proceedings of the KSR Conference
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• 한국철도학회 2004년도 춘계학술대회 논문집
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• pp.346-351
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• 2004

The present paper describes an experimental study on the corrosive behaviour of Rolling stock structures. It is important to predict corrosive behaviour of rolling stock structures for safe service and to know relation between corrosion and fatigue life. This paper practiced atmospheric corrosion test of SS400 and SM490A. This study practiced an additional test on the influence of heat-treatment. This test will examine corrosive behaviour and differences of SS400 and SM490A.

• Journal of the Korean Society for Railway
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• 제8권5호
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• pp.439-443
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• 2005

The biggest challenge bridge agencies face is the maintenance of bridges, keeping them safe and serviceable, with limited funds. To maintain the bridges effectively, there is and urgent need to predict their remaining life from a system reliability viewpoint. In this paper, a model using lifetime functions to evaluate the overall system probability of survival of a rail road bridge is proposed. In this model, the rail load bridge is modeled as a system. Using the model, the lifetime of the rail road bridge is predicted.

• Proceedings of the Korean Information Science Society Conference
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• 한국정보과학회 2000년도 가을 학술발표논문집 Vol.27 No.2 (1)
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• pp.439-441
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• 2000

절차지향 소프트웨어를 객체지향 소프트웨어로의 재공학은 소프트웨어 유지.보수 비용의 절감과 기존의 시스템에 새로운 요구사항을 수용하는 등 많은 장점이 있다. 본 논문은 절차지향 소프트웨어를 재공학하는 과정에서 안전한 지속성(Safe Persistency) 결정문제, 즉 객체의 생성과 생성 주기의 결정 방법을 제안하였다. 본 논문에서는 지속성 결정을 위해 다섯 단계의 모델링 과정을 제시하였으며 모델링 과정을 통해 객체의 정확한 생성과 소멸 시점을 추출하였고 정제 과정을 거침으로써 메시지 전달과 생성/소멸 과정에서 안정성과 일관성을 유지할 수 있도록 하였다.

• Journal of the Korea Safety Management & Science
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• 제1권1호
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• pp.29-39
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• 1999

Human sensibility ergonomics is the technique that qualities man's sensibility, measures and evaluates it Quantitatively and makes man's life comfortable, safe and delightful by applying it to products or environmental projects. This study consider the sensibility factor of Sasang constitutional medicine, five elemental properties, and Biorhythm in terms of human sensibility ergonomics. And this study measure reaction-time dependent on a temperament or a state and evaluate the differences of reaction-times objectively with the comparison and analysis using the ANOVA. We can harness it for job design.

• Journal of the speleological society of Korea
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• 제5호
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• pp.5-14
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• 1997

This research is to survey the possibility of developing Yoryang coral cave as the local tour site uitable for local self-government era of Kangwon province, with relation to the tour development of Odaesan and Tebagsesan. This cave is only coral one founded in Asia and has very high speleological, and academic values. The people in the mining village can live a safe and rich life by getting two more jobs through developing the tour site in Yoryang coral cave round. The tour train running between Kangnung and Wonju makes coral cave as the local tour site, the beneficial condition of developing Yoryang.

• Proceedings of the KSR Conference
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• 한국철도학회 2004년도 추계학술대회 논문집
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• pp.686-691
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• 2004

The present paper describes an experimental study on the corrosive behaviour of Rolling stock structures. It is important to predict corrosive behaviour of rolling stock structures for safe service and to know relation between corrosion and fatigue life. This paper practiced electrochemical corrosion test of SS400 and SM490A. This study will examine the corrosive properties and differences of SS400 and SM490A from measuring corrosion potential, corrosion current density and corrosion rate.

• 한국지구물리탐사학회:학술대회논문집
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• 한국지구물리탐사학회 2001년도 정기총회 및 제3회 특별지포지움
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• pp.1-13
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• 2001

The role of geophysics in Environmental Earth Sciences and Engineering is considered. In the developing era since 60's in Japan, geophysics has mainly contributed to investigation of new constructions such as tunnels, dams and high-rise buildings. In the coming sustainable era, geophysics must be used for maintaining the safe and easy human life. Application examples of geophysics to investigations for disaster prevention, maintenance of existing constructions and soil and groundwater pollutions are presented to demonstrate their role in Environmental Geo-engineering. Future subjects in this field for geophysics and geophysicists are also discussed.

• Journal of the Korean Society of Safety
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• 제10권2호
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• pp.24-31
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• 1995

This paper shows the fatigue durability test method for vehicle suspension systems. Durability should be assured for the safe driving during vehicle life cycle. A computer simulation for the vehicle dynamics was used to obtain dynamic loads that were required for the fatigue durability test. Durability tests were done for an Important load-carrying component of the suspension system. Stress analyses using stresscoat and strain gages were also done for the component. This study demonstrated an effective method for the fatigue durability test.

• Journal of Chest Surgery
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• 제53권4호
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• pp.222-225
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• 2020

Owing to varying clinical definitions of anastomotic stricture following esophageal reconstruction, its reported incidence rate varies from 10% to 56%. Strictures adversely impact patients' quality of life. Risk factors, such as the anastomosis method, leakage, ischemia, neoadjuvant chemoradiotherapy, and underlying disease have been mentioned, but conflicting information has been reported. Balloon dilation is regarded as a safe and effective treatment method for patients with benign anastomotic strictures. Reoperations are seldom required. The etiology and management of anastomotic strictures are reviewed in this article.

• Safe Food
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• 제6권3호
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• pp.24-30
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• 2011