• Proceedings of the Korea Society for Simulation Conference
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• 2001.10a
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• pp.380-386
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• 2001

In considering the issue of safely during emergency building evacuations, it is important to be able to make accurate predictions about evacuation conditions and to be able to assess safety levels. Simulation techniques are often used to make predictions regarding evacuation conditions. The two main types of prediction models are crowd flow models and discrete models. We have developed an evacuation simulation system based on the discrete model which attempts to address the implementation problems of existing evacuation models. Our model incorporates characteristics such as evacuee profiles and spatial considerations, and is capable of dynamically predicting the behavior of individual evacuees. The simulation system is primarily designed for buildings in which many people are incapacitated and require helpers in order to evacuate, such as hospitals and facilities fur the elderly. We show the results that the evacuation simulation system was used to perform two trial simulations.

• Proceedings of the Korea Concrete Institute Conference
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• 2006.05a
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• pp.446-449
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• 2006

Several experimental investigations have been carried out to study the behavior of reinforced concrete columns with short lap splices. However, very few analytical models have been developed for the analysis of such columns subjected to earthquakes. As nonlinear analysis procedures become more common in practice (such as those outlined in the Guidelines for Seismic Rehabilitation of Buildings published by the Federal Emergency Management Agency in the United States), the need for an accurate and reliable representation of the nonlinear response of strength degrading systems becomes more important. In this study, an analytical model for estimating the complete response of reinforced concrete columns with short lap splices is presented. The model is based on local bond stress-slip relationships and is validated against independent experimental data from cyclic loading tests on reinforced concrete columns with typical construction details of the 1960s. In this paper a simple equation for calculating the bar stress at splice failure is presented. Use of the proposed equation resulted in excellent agreement between the measured and calculated strength at splice failure.

• Research in Community and Public Health Nursing
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• v.4 no.2
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• pp.158-169
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• 1993

Health promotions have been identified as foundamental concepts for nursing practice, especially in community health nursing. Nurses have been regarded as having important role's in health promotion activities. According to a review of literature, the concepts of health promotion consist of prevention services, health protection. Health prevention services have three levels : Primary secondary and tertiary. The objectives of this study are (1) to analyze the health promotion activities in school nursing. (2) to analyze health promotion activities in community health nursing posts. (3) to analyze the health promotion activities in industrial nursing while suggesting future direction for health promotion in community health nursing areas. The major results are first, Prevention services are most actively performed rather than health protection, and health education in three areas: School, industries, and community. Health nursing, secondary prevention services follow emergency care, and ordinary diseases control are especially active. Health promotion can ultimately from changing life be accomplished styles, and health behavior. As a consequence, future directions promoting health in community health nursing are desirable areas. Focusing on health protection, and health education that is not activated presently.

• Transactions of the Korean Society of Mechanical Engineers B
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• v.23 no.10
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• pp.1274-1284
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• 1999

The Regulatory Guide 1.82 recommends an analysis of hydraulic performance for sump of ECCS (Emergency Core Cooing System) when LOCA(Loss of Coolant Accident) occurs in a nuclear power plant. The present study deals with 3-dimensional, unsteady, turbulent and two-phase flow simulation to examine the behavior of mixture of reactor coolant and debris near the floor of containment building in conjunction with appropriate assumptions. The dispersed solid model has been adjusted to the interfacial momentum transfer between reactor coolant and debris. According to the results, the counterclockwiserecirculation zone had been formed in the region between sump and connection aisle about 376 second after LOCA occurs. The debris thickness accumulated on a sump screen periodically increases or decreases up to 2000 second, afterwards its peak decreases.

• Journal of Korean Academy of Nursing
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• v.43 no.4
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• pp.453-467
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• 2013

Purpose: This study was done to describe nurses' experience of incivility in hospitals and to consider nurses' work environment. Methods: Data were collected through in-depth interviews and analyzed using Colaizzi' phenomenological analysis methodology. Participants were seven experienced clinical nurses working on a general ward (2 nurses), or in an intensive care unit (2 nurses), emergency room (2 nurses), or operating room (1 nurse). Results: The incivility that nurses experienced was categorized as follows: 'being afflicted as a weak person', 'being treated as less than a professional', 'being overwhelmed by shock and anger', 'experiencing an untenable situation', 'struggling to survive', and 'pursuing professional growth'. Conclusion: Behavior guidelines should be developed to reduce incivility, and incivility cases should be continuously monitored by the nursing department. Also, to handle incivility problems in clinical nursing areas, a reporting and counseling system and education programs are needed.

• Proceedings of the Korea Contents Association Conference
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• 2014.11a
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• pp.285-286
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• 2014

세계적으로 지진, 해일, 홍수 등의 자연 재해와 화재, 테러 등의 인위적 재해가 빈번하게 발생하고 있다. 이러한 다양하고 예측 불가능한 재해로 인해 다수의 사상자가 발생하고 있다. 재해 발생 시 빠른 시간에 재해 발생 여부를 파악하여 재해 발생 위치와 적절한 피난 경로 등의 정보를 피해자에게 제공한다면 신속히 안전한 장소로 대피가 가능하여 피해를 최소화 할 수 있다. 본 논문에서는 재해 발생 시 피난 지원을 목적으로 연구하는 긴급피난지원시스템(ERESS)을 효과적으로 지원할 수 있도록 비상 시 긴급피난지원시스템을 위한 9축 센서 기반 행동 분석 시스템을 구현하였다.

• Proceedings of the KSR Conference
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• 2008.06a
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• pp.1524-1530
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• 2008

Generally a road vehicle's wrong entry into level crossing gives rise to hazardous events, the eventual collision with a approaching train depends on the effective operation of safety barriers such a abnormal condition detecting or emergency braking. In this paper, the risk assessment models developed for the level-crossing accidents will be introduced. The definition of hazardous events and the related hazardous factors are identified by the review of the accident history and engineering interpretation of the accident behavior. A probability of the hazardous events will be evaluated by the FTA, which is based on the accident scenario. For the severity estimation, the critical factors which can effect on the consequence will be reviewed during the ETA. Finally, the number of casualty for the public(vehicle drivers) and the train passengers are converted into an equivalent fatality.

• Proceedings of the KIEE Conference
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• 1998.07c
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• pp.1088-1090
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• 1998

The cogeneration facilities (COGN) into the power distribution system can cause operational problems - reenergization of distribution feeders under repair by utility personnel, voltage variation and regulation because of output power of COGN, and lost of coordination at emergency state - on an electrical utility system. This paper deals with momentary voltage dips as the parallel interconnection operation of COGN in the power distribution system. PSCAD/EMTDC simulation tool is used to show the behavior of momentary voltage dips. In addition, restraint solution for momentary voltage variation is presented.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.21 no.1
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• pp.23-32
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• 2009

The Purpose for this study was to analyze the evacuation behavior of a training facilities for young people in case of fire emergency. It is necessary to study for fire safety design of the training facilities. The study carried out two different simulations on the training facilities. The results were divided into two groups by using Simulex, FDS. By comparing those two different outputs, we were able to verify the problems of existing training facilities. The results have shown that there was a need for a greater structural design in these training facilities.

• 한국방재학회:학술대회논문집
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• 2008.02a
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• pp.13-18
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• 2008

The 2005 west off Fukuoka earthquake with Mjma 7.0 occurred in the vicinity of Fukuoka city with 1.4 million populations, which had been regarded as rather seismically inactive in Japan. The strong motion records by K-net indicated PGV of 64 cm/s in Fukuoka city and some condominium buildings sustained extensive non-structural damages. In this study, we conducted a questionnaire survey for residents of 8 condominium buildings located in the downtown area of Fukuoka city after the earthquake. The results indicate that damaged nonstructural walls and distorted doors disrupted evacuation route for many occupants, and furniture and content damage on upper floors became severer resulting in higher rates of human casualty. Earthquake preparedness for indoor safety was raised after the earthquake, though further safety measures can be advised. In the phase of post-earthquake emergency and restoration period, residents' management organizations play important roles, so that neighborhood activities to promote communication networks are important in urban environment with aging population.