• 제목/요약/키워드: power efficacy

검색결과 514건 처리시간 0.024초

Study on Application of Reinforcement Device to Provide Greater Dynamic Stability for Power Transmission Towers and its Effect

  • Yang, Kyeong-hyeon;Bae, Choon-hee;Jeong, Nam-geun;Kim, Doo-young;Kim, Sung-min;Jang, Yong-hee
    • KEPCO Journal on Electric Power and Energy
    • /
    • 제2권1호
    • /
    • pp.33-41
    • /
    • 2016
  • To verify that the friction damper used to high buildings as a kind of control technology of wind vibration can reduce dynamic behaviors of PTTs effectively, slip dampers in this paper are proposed to absorb the energy through relatively frictional movement of slip dampers applied to main post of a PTT (Power Transmission Tower) when dynamic displacement of a PTT occurs. The result of dynamic analysis is presented to determine the capacity of the damper system by controlling damping ratio on the resonance condition. It is observed that by installing slip dampers at a PTT the strain amplitudes of the main post caused by wind load are effectively reduced. Therefore it is shown that the proposed damper satisfies the strengthened wind-load design standards, and its efficacy was also validated experimentally by field testing.

Backlight for TFT LCD

  • Jeong, Jin-Man;Eom, Deok-Soo
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 한국정보디스플레이학회 2000년도 제1회 학술대회 논문집
    • /
    • pp.201-202
    • /
    • 2000
  • This seminar outlines the technology involved in the backlighting of TFT LCDs. It covers basic terminology, lighting requirements, lamp types and optical techniques. These will be reviewed and compared. Optical factors will be covered and related to space constraints. The spectral requirements, luminance levels, system efficacy, power requirements, lamp temperature, as well as other parameters affecting system performance will be discussed.

  • PDF

치위생과 학생의 전공만족도, 진로탐색효능감이 진로탐색 행동에 미치는 영향 (Effect of satisfaction in major and career search efficacy on career search behavior in dental hygiene students)

  • 정기옥;최규일;배지영
    • 한국치위생학회지
    • /
    • 제13권1호
    • /
    • pp.61-68
    • /
    • 2013
  • Objectives : The purpose of this research is to identify the effect of Dental Hygienic students' level of satisfaction towards their major and sense of career exploration efficacy on their career exploration behavior so that the key findings of this research will help the university students to explore career related to their major and to assume rational attitude towards their career path. Methods : The study was conducted targeting 450 university students who are studying in the Department of Dental Hygienic at the four universities located in Daegu, Gyeongsangbuk-do and Chungcheongbuk-do. Data collection was carried out using the self-administered questions based on the use of structured survey questionnaire, and analysis was conducted using frequency analysis, descriptive statistics, ANOVA, correlation analysis, and multiple regression analysis. Results : 1. Total grade of the Dental Hygienic students' level of satisfaction towards their major was $3.36{\pm}.49$ points, while total grade of the sense of career exploration efficacy was $3.06{\pm}.46$ points. In case of the career exploration behavior, the total grade was $2.76{\pm}.53$ points. 2. In case of the level of satisfaction towards their major, there was a significant difference depending on the class, grade and motivation for admission. As for the sense of career exploration efficacy and career exploration behavior, there was a significant difference depending on grade. 3. Sense of career exploration efficacy and career exploration behavior demonstrated level of satisfaction towards their major manifested positive correlation. Sense of career exploration efficacy manifested positive correlation career exploration behavior. 4. As for the elements that affect Dental Hygienic students' career exploration behavior, they were level of satisfaction towards their major and sense of career exploration efficacy, and the explanatory power was 19.0%. Conclusions : It should be necessary to study the elements that affect Dental Hygienic students' career exploration behavior in greater depth using diverse methods and information in order to increase sense of career exploration efficacy so that the individual Dental Hygienic students can engage in detailed career exploration behavior for the sake of their career path.

예비유아교사의 건강 지식과 건강 행위, 건강교육 교수효능감 간의 관계 분석 (Analysis of Relationship of Health Knowledge, Health Behavior and Health Education Teaching Efficacy of Pre-Service Early Childhood Teachers)

  • 박유미;박선미
    • 한국산학기술학회논문지
    • /
    • 제22권1호
    • /
    • pp.477-484
    • /
    • 2021
  • 본 연구는 예비유아교사의 일반적 특성에 따라 건강 지식과 건강 행위, 건강교육 교수효능감에 차이가 있는지를 살펴보고, 각 변인 간의 관계를 분석하여 교수효능감에 영향을 미치는 요인을 알아보는 것을 목적으로 하였다. 이를 위해 충남 지역과 전북 지역 소재 전문대학 유아교육과에 재학 중인 258명을 대상으로 건강 지식, 건강 행위, 건강교육 교수 효능감을 측정하였다. 수집된 자료는 SPSS Win 21.0을 이용하여 연구문제에 따라 t검정과 Welch 분산분석, 상관분석, 중다회귀분석을 실시하였다. 연구결과 첫째, 예비유아교사의 일반적 특성 중 일부 변인에 따라 건강 지식과 건강 행위, 건강교육 교수효능감에 유의한 차이가 있었다. 둘째, 예비유아교사의 건강 행위와 건강교육 교수효능감 전체 및 하위변인 간에는 유의한 정적 상관이 나타난 반면, 건강 지식과 건강교육 교수효능감 간에는 유의한 정적 상관이 거의 나타나지 않았다. 건강교육 교수효능감에 영향을 미치는 변인은 건강 행위 전체였으며 설명력은 약 30%인 것으로 나타났다. 이상의 연구 결과를 토대로 본 연구의 제한점과 후속 연구에 대한 제언을 제시하였다.

임상실습에서 간호대학생이 경험하는 자기효능감, 사회적지지가 소진에 미치는 영향 (The Effect of Self-Efficacy and Social Support of Nursing Students During Clinical Practice on Burnout)

  • 김혜정
    • 한국엔터테인먼트산업학회논문지
    • /
    • 제14권8호
    • /
    • pp.315-322
    • /
    • 2020
  • 본 연구는 임상실습에서 간호대학생이 경험하는 자기효능감, 사회적지지, 소진의 정도를 파악하고, 소진에 영향을 미치는 요인을 확인하여 소진을 예방하는데 기초자료를 제공하고자 시도되었다. 연구방법은 서술적 조사연구로서 Y지역 간호대학생 3, 4학년 173명을 대상으로 2019년 10월 15일부터 11월 4일까지 자료수집하였다. 자료분석 방법은 빈도와 백분율, t-test, ANOVA, 사후검증은 Scheffé 검정, Pearson's correlation coefficients, 다중회귀분석을 사용하였다. 간호대학생의 일반적 특성에 따른 자기효능감, 사회적지지, 소진의 차이는 학년(t= -2.20, p=.029), 전공만족도(F=3.62, p=.029)에서 유의한 차이를 보였다. 간호대학생의 자기효능감, 사회적지지, 소진 간의 상관관계를 분석한 결과, 자기효능감과 사회적지지((r=.214, p=.005)는 양의 상관관계, 소진과 자기효능감(r=-.253, p<.001)은 음의 상관관계, 소진과 사회적지지(r=-.175, p=.021)도 음의 상관관계가 있었다. 소진에 영향을 미치는 요인으로 전공만족도(β= -.21, p=.006), 자기효능감(β= -.16, p=.032), 사회적지지(β= -.15, p=.047) 순으로 모형의 설명력은 13.8%이었다. 결론적으로 임상실습에서 간호대학생이 경험하는 소진을 예방하기 위해서 대학생활 만족과 임상실습 만족을 향상시키고, 사회적 지지와 자기효능감을 높이는 중재 프로그램 개발이 필요하다.

상급종합병원 간호사의 자기효능감, 비판적 사고성향, 셀프리더십 및 의사소통 능력이 프리셉터 핵심역량에 미치는 영향 (The Effects of Self-efficacy, Critical Thinking Disposition, Self-leadership, and Communication Competency on the Core Competencies of the Preceptor in Advanced General Hospitals)

  • 강윤미;은영
    • 한국간호교육학회지
    • /
    • 제24권3호
    • /
    • pp.279-289
    • /
    • 2018
  • Purpose: The study is to confirm the influence of self-efficacy, critical thinking disposition, self-leadership, and communication competency on the core competencies of the preceptor. Methods: Data were collected from August 27 to September 7, 2017 using structured questionnaires for 127 preceptors at a general hospital located in Korea. SPSS/Win 23.0 was used to analyze the frequency, percentage, mean, standard deviation, independent t-test, one-way ANOVA, Pearson's correlation coefficients, and stepwise multiple regression. Results: The mean score of the core competencies of the preceptors was $3.94{\pm}0.35$ (range 1-5); self-efficacy was $3.88{\pm}0.49$; critical thinking disposition was $3.54{\pm}0.36$; self-leadership was $3.66{\pm}0.39$; communication competency was $3.71{\pm}0.35$. There were no statistically significant differences between the core competencies of the preceptor and general characteristics. The core competencies of the preceptors were significantly correlated with self-efficacy (r=.61, p<.001), critical thinking disposition (r=.69, p<.001), self-leadership (r=.59, p<.001), and communication competency (r=.58, p<.001). The core competencies of the preceptors were affected by critical thinking disposition (${\beta}=.54$, p<.001), followed by communication competency (${\beta}=.24$, p<.001). The explanatory power by the factors was 51% (F=63.66, p<.001). Conclusion: The results suggest that critical thinking disposition and communication competency are important predictors of the core competencies of the preceptors.

초등학생의 구강건강증진행위에 영향을 미치는 요인 (The Factors to Affect the Oral Health Promotion Behavior of Elementary School Students)

  • 김수경
    • 한국치위생학회지
    • /
    • 제8권4호
    • /
    • pp.55-64
    • /
    • 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.

  • PDF

30, 40대 여성의 유방자가검진 수행에 영향을 미치는 요인 (Factors Influencing the Practice of Breast Self-Examination Among Women in Their 30s and 40s)

  • 김미영;강은희;변은경
    • 동서간호학연구지
    • /
    • 제19권1호
    • /
    • pp.37-45
    • /
    • 2013
  • Purpose: The purpose of this study was to investigate the level of knowledge, health belief, and self-efficacy affecting on breast self-examination (BSE), and to identify factors influencing the practice of BSE of women in their 30's and 40's. Methods: With a correlation survey design, 194 women in their 30's and 40's were recruited at 4 culture centers in Busan via convenience sampling. Measures were included with knowledge, health belief, and self-efficacy for breast self-examination and level of BSE practice. Results: Level of knowledge, health belief and self-efficacy for BSE were greater than medium level. BSE practice had positive correlations with subscales of health belief, except barrier and self-efficacy, but no relationship with knowledge. Self-efficacy, sensitivity, and benefit among the entered variables were significant factors influencing the practice of BSE, and explanatory power of these variables was 32.8%. Conclusion: Based on this study, studies are required to compare through repeated research according to age, education, occupation, environmental characteristics. In addition, to maximize the educational effect, development of the educational program in conjunction with the local community to increase breast self-examination practice and research about the effectiveness are needed.

남자 대학생의 심리사회적 성숙도와 피임 자기효능감이 성적 자기주장에 미치는 융복합적 영향 (Influence of Psycho-Social Maturity and Self-efficacy for Contraceptive on Sexual Assertiveness of Male University Students)

  • 박정숙;김보미;권영은
    • 디지털융복합연구
    • /
    • 제14권9호
    • /
    • pp.461-470
    • /
    • 2016
  • 본 연구는 남자 대학생의 심리사회적 성숙도와 피임 자기효능감, 성적 자기주장의 관계를 확인하고 남자 대학생의 성적 자기주장에 미치는 요인을 파악하기 위한 연구이다. 자료 수집은 A시 소재의 2개 대학에 재학 중인 남자 대학생 200명으로 설문지를 이용하여 2015년 7월 1일부터 7월 30일까지 실시하였다. 자료 분석은 SPSS WIN 22.0을 이용하여 기술통계, 상관관계, 다중회귀분석을 하였다. 연구 결과, 심리사회적 성숙도와 피임 자기효능감, 성적 자기주장은 유의한 상관관계가 있었으며, 대상자의 성적 자기주장에 영향을 미치는 유의한 변수는 피임 자기효능감과 심리사회적 성숙도였고, 전체 설명력은 33%이었다. 따라서 성적 자기주장에 미치는 요인을 바탕으로 남자 대학생의 성적 자기주장을 향상시킬 수 있는 성교육 프로그램의 개발이 필요하다고 사료된다.

유방자가검진에 관한 관련요인분석 (The Affecting Factors on Breast Self-Examination(BSE) of Korean)

  • 김영임
    • 지역사회간호학회지
    • /
    • 제14권3호
    • /
    • pp.496-506
    • /
    • 2003
  • The purpose of this study is to analyze the affecting factors on breast self-examination of middle-aged women in Korea. The subjects were 141 women on Jeju Island, and materials were collected through an organized questionnaire from March to August 2002. The data were analyzed by using descriptive statistics, $x^2$-test. A-nova and Discriminant analysis by the SAS program. The major results are as follows: 1. 53% of the subjects performed the breast self-examination. The practice of breast self-examination was correlated with the education level, income, low salt diet, more than 30 minutes of regular exercise. 2. Attitudes towards breast self-examination were not a significant practice regarding breast self-examination. However, the cognition about difficulty of breast self-examination partly showed an important barrier factor to the positive attitude. 3. The average self-efficacy concerning breast self-examination was 3.03. The stages of change related to the subjects showed that a contemplation stage was high. 4. With a stepwise multiple regression, the most significant factor on self-efficacy related with breast self-examination was the contemplation stage, 30-40 aged women. high income, regular exercise, low salt diet, family cancer history, etc. 5. With the discriminant analysis, the most important factors related with the practice of the breast self-examination were income and self-efficacy. The power of discriminant was 59%. The results of this study suggests that programs should be developed to promote practice and the self-efficacy related with breast self-examination.

  • PDF