• 대한전기학회:학술대회논문집
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• 대한전기학회 2015년도 제46회 하계학술대회
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• pp.555-556
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• 2015

디지털변전소의 정보를 최적화하여 변전소 Self-Healing, 자동고장복구 등 다양한 차세대 응용시스템을 개발하기 위해서는 변전소의 모든 설비를 네트워크로 연결하여 디지털화하는 Process 버스기반 디지털변전시스템은 필수적으로 필요하며, 이를 통해 변전소를 구축하고 엔지니어링 하는 과정전반이 컴퓨터 프로그램에 의해 쉽고 간편한 작업이 가능하게 되어 공간활용을 극대화할 수 있고 건설 및 유지보수 비용을 큰 폭으로 감소시킬 수 있다. 본 논문은 이러한 디지털변전소의 시대적 변화에 부합하여 국내에서 개발된 Process 버스 기반의 IED와 MU에 대하여 현장 적용을 위한 성능검증 방안을 제시하고, 국내 최초로 Process 버스 기반 디지털변전시스템 실증시험장을 제주 성산변전소에 구축하는 과정에서 수행한 검증결과를 설명하고자 한다.

• 한국식생활문화학회지
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• 제14권3호
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• pp.225-231
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• 1999

Perception and knowledge on the diet among 651 women living in Inchon were surveyed by questionnaires in March through May, 1998. Respondents consisted of middle school girls(12.3%), high school girls(16.4%), and women in twenties(16.4%), thirties(18.9%), forties(15.7%) and fifties and over(20.3%). Ratio of high school graduates was the highest(37.0%) among respondents, and there was a tendency of less education with ages. Seventy-six percent of women practised the diet for the self-satisfaction of a nice figure, 20% for healing diseases, and 3.4% for attracting boy friends' or husbands' attention. The purpose of the diet was significantly different with ages(p<0.01). The diet methods which the respondents perceived effective and wanted to practise were exercise and food therapy. Average score of the knowledge on the diet was 8.27 out of 10, and significantly different with ages and education(p<0.05). Twenties showed the highest score and high school girls, thirties, middle school girls, forties and fifties and over were followed in decreasing order. Also the score was in decreasing order of graduates of college, high, elementary and middle school.

• 디지털산업정보학회논문지
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• 제14권1호
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• pp.121-133
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• 2018

The goal of this study is to investigate the factors affecting firefighter's traumatic experiences and to examine and compare the differences of how those factors contribute to firefighter's burnout, depression, anxiety and social relationships. This study suggests that it is imperative for firefighters to have mindfulness, which brings mental and emotional healing, for their job-satisfaction. To empirically examine the research model of this study, the questionnaire survey was carried out to firefighters in InCheon Metropolitan City for two weeks; from October 19thto November 3rd, 2017. Out of 180 questionnaires, 170were retrieved. Total number of 160 questionnaires are empirically examined this study, excluding10bad survey responses. The t-test was conducted to determine whether there exist differences by gender among traumatic experienced firefighters, and a meaningful difference was found from perceived intrusiveness, a sub factor to traumatic experiences. Male firefighters showed higher mean than that of female firefighters in perceived angle, evasion and intrusiveness. Second, the t-test was conducted to determine whether there exist differences by gender in firefighter's burnout, but no meaningful differences were found. Female firefighters showed higher mean in emotional exhaustion, impersonalization and in decrease in self-achievements. Third, the t-test was conducted to determine whether there exist differences by gender in firefighter's depression and relationships, but no meaningful differences were found.

• 한국표면공학회:학술대회논문집
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• 한국표면공학회 2012년도 추계총회 및 학술대회 논문집
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• pp.12-13
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• 2012

An environmentally friendly method for in situ growth of Mg-Al hydrotalcite (HT) film on AZ31 magnesium alloy has been developed. The growth processes and corrosion resistance of the HT film were investigated. Then the HT film was surface modified by phytic acid solution to further improve the corrosion resistance. The film formation involves the dissolution of AZ31 substrate, adsorption of the ions from solution, nucleation of the precursor, followed by the dissolution of $Al^{3+}$, exchanging of $OH^-$ by $CO{_3}^{2-}$ and growth of the HT film. The HT film is very compact and acts as a barrier against $Cl^-$ attack in the early stage of corrosion, and then the surface of the film is dissolved gradually. This dense HT film can provide effective protection to the AZ31 alloy. The HT film with surface modification by phytic acid presents a self-healing feature and exhibits better corrosion resistance.

• 접착 및 계면
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• 제18권4호
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• pp.171-178
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• 2017

최근 들어, 다층박막법(Layer-by-Layer(LbL) assembly)을 이용한 표면 젖음성 제어 기술이 큰 관심을 받고 있다. 다층박막법은 고분자, 계면활성제, 나노 입자 등과 같은 다양한 재료를 이용하여 수직 구조와 표면 특성을 나노 및 마이크로 스케일로 제어할 수 있는 다기능적이며 친환경적인 제조방법이다. 본 논문에서는 다층박막법을 이용하여 표면 특성을 제어하는 기술의 최근 동향을 살펴보고자 한다. 특히, 초발수, 초친수, 초발유/초친수 LbL 표면의 제조와 응용에 대한 기술 동향과 연구 결과를 기술한다. 또한, omniphobic, 자가-치유, 지능형 및 외부 반응형 표면 등 최근 각광을 받고 있는 분야의 기본적인 원리와 제조 방법 등에 대해 소개하고자 한다.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2011년도 정기 학술대회
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• pp.315-318
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• 2011

본 논문에서는 구조물 연결부의 실시간 손상 검색을 통해 이상이 감지되었을 경우 자가치유까지 가능한 지능형 볼트접합부 시스템에 관한 실험적 연구결과가 제시되었다. 지능형 센서인 PZT센서의 전기-역학적 커플링 특성을 이용한 전기역학적 임피던스 기반의 구조물 건전성 평가 방법이 사용되었다. 전기역학적 임피던스의 측정을 통한 계측값을 베이스라인 값과 비교하는 손상 평가를 통해 구조물 볼트접합부의 볼트풀림 손상을 진단하고, 손상은 손상지수 RMSD를 통하여 정량화되었다. 볼트접합부의 손상이 감지되었을 경우 형상기억합금(SMA) 와셔에 부착되어있는 히팅 필름에 전원을 가함으로써 형상기억합금에 열을 가하고, 가열된 형상기억합금 와셔는 축방향으로 팽창을 함으로써 잃었던 볼트의 토크력을 회복시켜주었다. 실험 결과, 제안된 전기역학적 임피던스 기반의 구조물 건전성 평가기법과 형상기억합금 와셔 기반의 볼트접합부 자가치유 시스템의 성능 평가와 검증이 이루어졌다.

• 기본간호학회지
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• 제17권2호
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• pp.149-158
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• 2010

Purpose: This study was done to gain understanding of what career and related experience mean to individuals undergoing hemodialysis. Methods: Ten male patients receiving hemodialysis participated in the study. Data collection took place between November 18, 2008 and February 10, 2010, via unstructured interviews. Data collection and analysis were conducted simultaneously, and Colaizzi's phenomenological method (1978) was used for the analysis. Results: The significance the participants found in their "dual" life as worker and dialysis patients was classified into five categories: 'Recognition of self-existence value', 'My health comes before my work', 'Being afraid of stigma', 'Limitation of restricted work', and 'Difficulty with time management.' Conclusion: It was found that the dialysis patients showed ambivalent feelings towards their careers, hoping they will be able to continue to work yet fearing that the continued work might break balance the between their livelihood and healing. Therefore, it is recommended that hours for hemodialysis be more flexible to ensure that patients can keep their jobs and better manage their time while undergoing treatment.

• 대한간호학회지
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• 제38권6호
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• pp.802-812
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• 2008

Purpose: The purpose of this study was to identify and describe phenomenological structures of the lived experience of struggling against an illness for patients with Amyotrophic Lateral Sclerosis (ALS). Methods: The participants were 7 patients with ALS recruited by snowball sampling who agreed to participate in this research and could verbally communicated with the researcher. Data were collected by long term-repeated interviews with participants in their own homes. Data were analyzed using Colaizzi's method of phenomenology. Results: Four categories were extracted as follows: 'Being seized with fear of death', 'Living a marginal life', 'Accepting hard fate', and 'Clinging to faint life'. Seven theme clusters were identified as: 'Wandering to find a healing method with ominous signs in the body', 'Having a diagnosis of ALS is like a bolt from the blue and struggling against illness with faint hope', 'Being forced out to the edge of life with anguish', 'Filling one's heart with hatred and longing toward becoming estranged from the world', 'Living with stigma as a stumbling block with bitter grief in one's heart', 'Accepting every things as one's fate with self controlled fear of death', and 'Attaching to desire to live'. Conclusion: The results of this study can be used to develop the programs to support patients with ALS and their family.

• 한국전기전자재료학회논문지
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• 제11권7호
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• pp.508-516
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• 1998

Mo-tip field emitter arrays(FEAs) were fabricated by conventional Spindt process and their life time characteristics and failure mode were evaluated. The fabricated Mo-tip FEA could generate at least $0.35\{mu} A/tip$ emission current for about 320 persistently under a constant gate bias of 140 V and was finally destroyed through self-healing mode. Thin diamond-like carbon films were coated on the M-tip by plasma-enhanced CVD and the dependence of emission properties upon the DLC thickness was investigated. By DLC coating, the turn-on voltage and emission current were appeared to be improved whereas the current fluctuation was increased in the DLC thickness range of $0~1,000\{AA}$.

• 한국의류학회지
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• 제42권3호
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• pp.411-427
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• 2018

This study is to understand the inner psychological state of consumers who pursue a retail therapy effect through fashion product shopping. Qualitative research on the whole process from the point of time of occurrence of shopping motivation to the end of shopping motivation was performed. The researcher became a virtual shopping partner during shopping and conducted a natural conversation interview using a mobile instant messenger program (Kakao Talk). After shopping, participants were asked to write a diary on that day. Collected data were analyzed by applying the grounded theory approach suggested by Strauss and Corbin (1998). Casual Condition, represented everyday stress and Contextual Condition indicated the self-healing consumption trend. Main Phenomena showed a mood change during the fashion shopping process. The sense of emancipation from the place, the satisfaction from the maintenance of social relations, and the sense of accomplishment through purchases were revealed. Intervening Condition showed the consideration in the process of shopping for fashion products, such as providing a try-on experience, price promotion, and involvement of a companion. Action Interaction Strategy was the shopping behavior for the positive emotion increase and negative emotion decrease. Consequence represented a retail therapy in shopping for fashion products.