• 대한기계학회:학술대회논문집
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• 대한기계학회 2001년도 추계학술대회논문집A
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• pp.61-66
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• 2001

Fracture behaviors of pipes with local wall thinning is very important for the integrity of nuclear power plant. In pipes of energy plants, sometimes, the local wall thinning may result from severe drosion-corrosion damage. However, effect of local wall thinning on strength and fracture behaviors of piping system were not well studied. In this paper, the monotonic bending tests were performed of full-scale carbon steel pipes with local wall thinning. A monotonic bending load was applied to straight pipe specimens by four-point loading at ambient temperature without internal pressure. From the tests, fracture behaviors and fracture strength of locally thinned pipe were manifested systematically. The observed failure modes were divided into four types; ovalization, ovalization+cracking, local buckling and local buckling+cracking. Also, maximum load was successfully evaluated.

• 한국연소학회지
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• 제17권3호
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• pp.9-16
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• 2012

Nonlinear dynamics of pulsating instability in radiating counterflow diffusion flames is numerically investigated by imposing Damk$\ddot{o}$hler number perturbation. Stable limit-cycle solutions occur in small ranges of Damk$\ddot{o}$hler numbers past bifurcation point of instability. Period doubling cascade and chaotic behaviors appear just before dynamic extinction occurs. Nonlinear dynamics is also studied when large disturbances are imposed to flames. For weak steady flames, the dynamic extinction range shrinks as the magnitudes of disturbances are increased. However, strong steady flames can overcome relatively large disturbances, thereby the dynamic extinction range extending. Stable limit-cycle behaviors reappears prior to dynamic extinction when the steady flames are strong enough.

• 한국의류학회지
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• 제25권3호
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• pp.606-616
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• 2001

The purpose of this study was to investigate the preferred clothing images and clothing behaviors on personality types. Personality types were applied using Myers-Briggs Type Indicator(MBTI). Clothing image preferences were measured using 28 adjectives of 5-point scales. The data were collected from 101 female using questionnaire to prefer on clothing images, consumer information sources and retail store types. The data analysed with crosstab analysis, t-test, MDS. Extroversion and Introversion had significant difference in casual, sporty, fresh, youthful, western, and simple more than introversion types. Sensing and intuition had significant difference in feminine and strong image. Sensing types were significantly evaluated feminine style more than intuition types. Thinking types were significantly evaluated simple image more than feeling types. Judging and perceiving had significant difference in graceful, lofty, and strong image. Judging types were significantly evaluated graceful and lofty style more than perceiving types.

• 천문학논총
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• 제17권1호
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• pp.11-14
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• 2002

Our examination of the relations of spherically symmetric accretion on a massive point object to viscous drag, neglecting gas pressure and using self-similar transformation, shows the behaviors of the asymptotic solutions? in the regions near to and far from the center. The viscosity reduces the free-fall velocity by the factor $(1\;+\;\zeta) ^{-1}$, and causes flattening in the density distribution. Therefore, the viscosity leads to the reduction of the mass accretion rate.

• 한국치위생학회지
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• 제8권4호
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• pp.55-64
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• 2008

This study set out to identify the factors to affect the oral health promotion behavior of elementary school students and to provide a framework to develop educational programs to promote their oral health promotion behavior. A survey was conducted to 729 fifth and sixth graders attending four elementary schools in Seoul. The variables were measured with a five-point Likert scale and include previous oral health related behaviors, perceived oral health status, perceived benefit, perceived barriers, self-esteem, self-efficacy, and oral health promotion behavior. First, the subjects scored relatively high 3.51 points out of 5 in oral health promotion behavior. They also scored 3.88 points in perceived benefit, 3.51 in selfesteem, 3.43 in self-efficacy, 3.28 in perceived oral health status, 2.77 in previous oral health related behaviors, and 1.79 in perceived barriers. Second, a significant difference was observed according to gender in previous oral health related behaviors and oral health promotion behavior. And a significant difference was also found according to grade in previous oral health related behaviors, perceived benefit, perceived barriers, selfesteem, self-efficacy, and oral health promotion behavior. Third, when they had an experience of visiting a dental clinic for preventive purposes, a significant difference was found according to the purposes of going to a dentist in previous oral health related behaviors, perceived benefit, and oral health promotion behavior. And fourth, multiple regression analysis was carried out with oral health promotion behavior as a dependent variable. As a result, all the research variables, which include previous oral health related behaviors, perceived oral health status, perceived benefit, perceived barriers, self-esteem, and self-efficacy, turned out to have significant influences on oral health promotion behavior. And their explanatory power was 49%. Conclusion: Those factors that were identified to affect the oral health promotion behavior of programs to promote their oral health.

• 한국콘텐츠학회논문지
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• 제15권6호
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• pp.326-336
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• 2015

본 연구는 여성 결혼이민자의 유방암과 자궁경부암 검진행위를 파악하고 관련 요인을 규명함으로써 여성결혼이민자의 유방암과 자궁경부암 검진행위 증진 프로그램을 위한 기초 자료를 제공하려는 목적으로 시도되었다. 연구의 주요 변수로는 Pender의 건강증진모형에 포함된 변수를 사용하였으며, 이들의 측정을 위해 총 7개의 측정도구가 사용되었다. 연구대상자는 한국인 남자와 결혼하여 대구, 경북지역에 거주하고 있는 결혼이민 여성 157명이었다. 연구결과, 대상자의 유방암 검진 행위율은 유방촬영술 33.1%, 유방 자가검진 29.9%, 자궁경부암 검진 51%로 나타났다. 유방암 검진행위는 사회적지지가 1점 높아짐에 따라 1.25배, 지각된 유익성이 1점 높아짐에 따라 1.13배, 유방암 및 자궁경부암 교육경험이 있는 경우가 없는 경우보다 3.58배, 행동계획 수립이 1점 높아짐에 따라 1.24배 높아졌다. 자궁경부암 검진행위는 유방암 및 자궁경부암 교육경험이 있는 경우가 없는 경우보다 2.89배, 사회적지지가 1점 높아짐에 따라 1.23배, 지각된 장애성이 1점 높아짐에 따라 0.82배 낮아졌다.

• 대한간호학회지
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• 제26권3호
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• pp.653-667
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• 1996

It is important to find indicators of quality nursing care to establish the excellence of nursing practice and for the development of nursing as a profession. Caring is one of the indicators which can represent professional nursing care. The purpose of this study was to develop a measurement tool of caring that could be used as an instrument for the evaluation of quality of nursing care. The Target population for the developed tool of caring is the adult patient. The mearsurement tool of caring was developed through the following steps. (1) A list of caring behaviors was made using qualitative researches on caring that has been done in Korea. (2) Caring behaviors in nurses were selected using the list of caring behaviors developed from Watson's 10 factors of caring. (3) Items for the measurement tool of caring were developed using the caring behaviors of nurses (4) Content validity of the developed items was evaluated by an expert panel. (5) The mearsurement tool of caring was developed after a pilot study (6) Internal consistency, and construct validity of the developed tool were verified. (7) The mearsurement tool of caring with the items verified for the internal consistency and construct validity was confirmed. As a result of the study, a mearsurement tool of caring, composed of 27 items with 3 factors, was developed. The Reliability coefficient of the tool was. 9578. The tool is a 5 point Likert scale. The factors of the tool and the number of items for each factor are, 1) accessibility and availablility, 15 items ; 2) emotional support and giving information, 8 items ; 3) providing a protective environment, 4 items.

• Journal of Hospice and Palliative Care
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• 제23권3호
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• pp.139-150
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• 2020

Purpose: The purpose of this study was to investigate the levels of end-of-life care competency; knowledge, attitudes, and experiences regarding advance directives; perceptions of good death; and end-of-life care obstacles and supportive behaviors among tertiary care nurses. Methods: The participants were 150 nurses at a tertiary hospital in Jinju, Korea. The data collected using a questionnaire were analyzed using descriptive statistics, the t-test, analysis of variance, Pearson correlation coefficients, and stepwise multiple regression in SPSS for Windows version 24.0. Results: The mean (±SD) score of end-of-life care competency was 3.63 (±0.53) on a 5-point scale. A significant difference in end-of-life care competency was found according to whether nurses had experienced the death of a family member or acquaintance (P=0.029). According to stepwise multiple regression analysis, the factors affecting end-of-life care competency were the frequency of end-of-life care supportive behaviors (β=0.38, P<0.001), experience with advance directives (β=0.29, P<0.001), and marriage (β=0.15, P=0.039). This model had an explanatory power of 27.9% (F=18.87, P<0.001). Conclusion: In order to improve nurses' end-of-life care competency, it is important to strengthen end-of-life care supportive behaviors by exposing nurses to those behaviors and providing frequent experience with advance directives.

• 아동학회지
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• 제16권2호
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• pp.97-112
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• 1995

The purpose of this study was to investigate the effect of selected internal and situational factors on children's prosocial behaviors. While child's sex and trait empathy were chosen as internal factors, state empathy and social evaluation were regarded as situational factors. The subjects were 72 bays and 72 girls chosen from 288 eleven-year-olds. This selection was based on their emplathic scores measured by the Bryant Empathy Scale (1982). Half of the 144 children belonged to the high-trait empathic group and the other half to the low-trait empathic group. Within each of the high-and the low-trait empathic groups, equal numbers of boys and girls were randomly assigned to one of the two state empathy conditions and two social evaluation conditions. The state empathy conditions were divided into the arousal condition and the disregarding condition. To control social evaluation, subjects were led to believe that the experimenter either would or would not evaluate their donation of colorful ball-point pens to handicapped children. The data was analyzed by 4-way ANOVA [sex(2)${\times}$trait empathy(2)${\times}$state empathy(2)${\times}$social evaluation(2)]. The results were that (1) children's prosocial behaviors were significantly different by sex, state empathy, and social evaluation, and (2) children's prosocial behaviors were not significantly different by their trait empathy level.

• 조명전기설비학회논문지
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• 제23권6호
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• pp.66-71
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• 2009

본 논문은 임펄스전류가 인가된 매설지선의 과도접지임피던스특성에 관한 것으로 길이가 10, 30, 50 [m]인 3개의 매설지선에 대하여 입 펄스전류의 인가점을 파라미터로 하여 과도접지임피던스와 규약접지임피던스를 측정하고 분석하였다. 임펄스전류의 상승시간에 대한 규약접지임피던스는 과도접지임피던스와 비슷한 경향이었다. 과도접지임피던스는 임 펄스전류의 인가위치에 영향을 크게 밭으며, 짧은 시간영역에서 과도접지임피던스는 매설지선의 길이에 매우 의존적이다. 임펄스전류가 인가된 10[m]의 매설지선은 용량성 특성이었으나 30[m]와 50[m]의 매설지선은 유도성 특성을 나타내었다. 접지도선은 매설지선의 중앙점에 접속하는 것이 바람직한 것으로 밝혀졌다.