• Child Health Nursing Research
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• v.24 no.3
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• pp.298-309
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• 2018

Purpose: The purpose of this study was to explore and develop a deeper understanding of the experiences of mothers of premature children receiving rehabilitation therapy. Methods: The participants were 12 mothers with premature children who had received rehabilitation therapy for over 1 year. Individual in-depth interviews were conducted from July to August 2017. The data were analyzed through the phenomenological research method. Results: The participants' experience was structured into five thematic clusters: 'Regret and guilt that premature birth led to rehabilitation therapy', 'Burden of life in an endless tunnel', 'Changes in personal relationships surrounding me and my child', 'Meaning of new life through my child', and 'Desire to expand the rehabilitation of premature infants'. Conclusion: The results of this study will be helpful for developing family-centered care programs for premature infants at high risk of developmental disorders.

• The Journal of Korean Academic Society of Nursing Education
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• v.20 no.4
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• pp.452-462
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• 2014

Purpose: This study explores the experience of university life in an unfamiliar department by first-year graduate students. Method: Data were collected from participants through focus group interviews between July and August 2013 using phenomenological research methods. Colsizzi's method was used for analysis after the institutional review board of the university approved the study and informed consent was obtained from the participants. All interviews were recorded on an MP3 recorder and transcribed. Results: The analysis revealed 51 meanings that were categorized by 15 key words into 6 themes: "sense of isolation," "feeling of solidarity," "limitations," "benefits," "overcoming" and "renewing." Conclusion: First-year graduate students experience both positive and negative feelings toward "university life"; however, they eventually overcome their difficulties and adapt to the conditions of their field of study and new department.

• Journal of the Korea Safety Management & Science
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• v.12 no.2
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• pp.75-82
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• 2010

Gas turbines for power generating operate in a very high temperature condition and use natural gas for fuel. For this reason, many cases of damage happen at hot gas parts which are severely affected by high temperature gas and many cases of explosion occur by fuel gas. So a lot of efforts should be made to prevent hot gas parts damage and gas explosion accidents. Though there are many damage cases and explosion accidents, it is very difficult to find out the root causes of hot gas parts damage caused by gas explosion due to gas leakage in the heat exchanger for air cooling and gas heating. To prevent gas turbine from damage caused by gas explosion, removal of leakage gas from gas turbine is inevitably required before firing the gas turbine and installing alarm systems is also required for detecting gas leakage at stop valve to turbine while shut down.

• Proceedings of the Korean Society of Computer Information Conference
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• 2014.01a
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• pp.173-176
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• 2014

본 연구는 청소년 범죄로 인해 교정시설(소년원)에 수용되어있는 청소년을 대상으로 비행 또는 범죄의 원인을 질적인 차원에서 분석함으로써 청소년비행의 예방이 되는 방안을 찾고자 하였다. 이를 위해 본 연구에서는 '재사회화 과정'이라는 의미를 도출하고 깊이 있는 이해를 도모하기위해 질적연구 방법인 현상학적 연구방법에 의해 소년원에 수용된 청소년의 재사회화 과정을 분석하였다. 연구결과 의미 있는 진술 34개를 도출하였고 14개의 중심의미를 조직하였다. 14개의 중심의미는 소년원 생활, 재적응하며 살아가기, 내 외부지원, 깨닫고 달라지기 라는 4개의 주제로 범주화 하였다.

• Journal of Korean Academy of Nursing Administration
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• v.15 no.1
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• pp.128-135
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• 2009

Purpose: The purpose of this study is to explore the lived experience of ethical dilemma of nurses and to describe the structure of the meaning of their experience for nurses. Method: The participants in this study were seven nurses with 3years and more careers who worked at general hospital and university hospital in T, P, K city. The data were collected from May, 2004 to September, 2004 through in-depth interviews untill saturated. The data were analyzed by phenomenological method suggested Giorgi. Results: Five main meanings were identified: Role limitation, Difficulty of decision, Self defensive position, Difficulty of interpersonal relation, A custom of unable expose. Conclusions: Based on the results of this study, there is need to study for identify the ethical dilemma of nurses from the viewpoint of korea, and development of nursing ethics guidebook to guide ethical dilemma situation in nursing field.

• Journal of Korean Academy of Nursing
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• v.34 no.1
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• pp.35-44
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• 2004

Purpose: This article explored issues arising from secondary analysis of qualitative data and analyzed the results of qualitative secondary analysis studies published in English, focusing on the methodological aspects. Method: A total of 29 studies were identified as qualitative secondary analysis studies, retrieving from the CINAHL database from 1982 to 3rd week of April 2003. These studies were analyzed by publication year, research method, and type of approach to secondary analysis. Result: The year that the qualitative secondary analysis study first published was 1992 and the number of the studies using secondary analysis has increased after the middle of 1990s. Grounded theory was the one the most frequently used(n=11, 37.9%) and phenomenological study the second most(n=6, 20.7%). In terms of types of approach, fifteen studies(51.7%) focused on the specific concepts that were not explored in the primary studies. Nine(31.0%) focused on the specific types of participants. Six were aimed to integrate contexts or perspectives to generate more general and abstract analysis of qualitative data. Conclusion: The results of this article will stimulate methodological discussion of qualitative secondary analysis and activate qualitative studies using secondary analysis.

• Child Health Nursing Research
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• v.5 no.3
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• pp.305-317
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• 1999

To understand and identity the meaning of sexuality in middle school girls and boys, the qualitative research was done. We made the in-depth unstructured interviews with 33 participants form July to October 1998. We analyzed the data according to the Collaizzi's phenomenological method. After repeated reading and interpretation of data, 15 themes and 7 basic structures were deducted. Followings were 7 basic structures: Physical touch and exposure. relationship with male and female, difference between male and female natural and inevitable life process, something should be hidden. interest and abstinence, and female as victim. According to above results, we would like to propose followings on the sexuality of middle school students : First, the research on the meaning of sexuality of high school and university students should be followed-up. Second. the measuring tool of sexual behaviour of the middle school students should be developed including the contents of 15 themes and 7 basic structures of this study.

• Transactions of the Korean Society of Automotive Engineers
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• v.7 no.7
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• pp.94-103
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• 1999

A model for the prediction of combustion and exhaust emissions of DI diesel engine has been formulated and developed . This model is a quasi-dimensional phenomenological one and is based on multi-zone combustion modelling concept. It takes into consideration, on a zonal basis ,detailed of fuel spray formation, droplet evaporation, air-fuel mixing, spray wall interaction, swirl , heat transfer, self ignition and burning rate . The emission model is considered with chemical equipment , as well as the kinetics of fuel. NO and soot reactions in order to calculate the pollutant concentrations within each zone and the whole of cylinder . The accuracy of prediction versus experimental data and the capability of the model in predicting engine heat release, cylinder pressure and all the major exhaust emissions on zonal and cumulative basis., is demonstrated. Detailed prediction results showing the sensitivity of the model bv various injection rates are presented and discussed.

• Journal of the Korean Society of Safety
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• v.31 no.3
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• pp.162-167
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• 2016

As the simple empirical and phenomenological model applied to the analysis of leakage and explosion of chemical substances does not regard numerous variables, such as positional density of installations and equipment, turbulence, atmospheric conditions, obstacles, and wind effects, there is a significant gap between actual accident consequence and computation. Therefore, the risk management of a chemical plant based on such a computation surely has low reliability. Since a process plant is required to have outcomes more similar to the actual outcomes to secure highly reliable safety, this study was designed to apply the CFD (computational fluid dynamics) simulation technique to analyze a virtual prediction under numerous variables of leakages and explosions very similarly to reality, in order to review the computation technique of the practical safety distance at a process plant.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.18 no.4
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• pp.457-467
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• 1993

One of the important statistical quantities for optical waves through random media is the probability distribution of irradiance. From phenomenological models, several distribution functions have been proposed. In this paper, irradiance data are obtained by computer simulation, and by comparing the proposed distribution functions with simulation data by the moment method, the histogram method, and the $x^2$-test, the validity of each distribution function is investigated.