• 대한전기학회:학술대회논문집
• /
• 대한전기학회 1991년도 하계학술대회 논문집
• /
• pp.521-526
• /
• 1991

High speed power switching technology is essential in developing high-frequency induction heating power supply. Since technological level of domestic industry is primitive, most of key technology is imported from the advanced foreign countries, and academic research will short of demand. Because of this background, this project requires national attention. Therefore, based on existing high-frequency technology, high-power high- frequency power supply for induction heating will be developed and various key technology in power switching technology, which will be used widely in industry, will be estabilished.

• 산학경영연구
• /
• 제2권
• /
• pp.141-169
• /
• 1989

Most of the theories of collective bargaining outcomes start with a set of economic variables. The economic constraints, pressures, and incentives influence the bargaining power relationship between labor union and employer. In this paper, the critical macro and micro economic variables that need to be considered in analyzing the economic context of collective bargaining power relationship is outlined. The focus is on the role that economic forces play in shaping the results of bargaining, that is the outcome of negotiations. In this study, the elasticity of the demand for labor is introduced as one of the most important economic aspects that influence bargaining power. Unions will be most successful in increasing wages when they enjoy an inelastic demand for labor. If the demand for labor is not naturally inelastic, some institutional arrangement for "taking wages out of competition" must be sought. Inflation, business cycle, and income policy are influential in shaping both parties' goals and expectations as well. In addition to the analysis of the economic variables, the nature of power is diagonized with some introductory notions about its care and feeding before proceeding to the details of the above issues.

• Journal of Electrical Engineering and Technology
• /
• 제12권5호
• /
• pp.1689-1696
• /
• 2017

In recent academic and industrial circles of the Republic of Korea, the securement of available reactive power reserve against the line faults is at issue. Thus, simulations have been performed for the securing of effective reactive power reserve (effective Q) to prepare for the line faults and improve reactive power monitoring and control methods. That is, a research has been conducted for the fast-decoupled Newton-Raphson method. In this study, a method that distinguishes source and sink regions to carry out faster provision of information in the event of line fault has been proposed. This method can perform quantification with the formula that calculates voltage variations in the line flow. The line flow and voltage changes can be easily induced by the power flow calculation performed every second in the operation system. It is expected that the proposed method will be able to contribute to securement of power system stability by securing efficient reactive power. Also, the proposed method will be able to contribute to prepare against contingencies effectively. It is not easy to prepare quickly for the situation where voltage drops rapidly due to the exhaustion of reactive power source by observing voltage information only. This paper's simulation was performed on the large scale Korean power system in steady state.

• 한국생활과학회지
• /
• 제8권2호
• /
• pp.255-273
• /
• 1999

The purpose of this study was to examine the relationship between characteristics of personality and respondent characteristics of Kinetic Family Drawing for young children. The subjects were 170 children(110 boys and 60 girls). The personal interview contained Personality Characteristic Test for young children(In-Sub Song, 1993) and Kinetic Family Drawing Test(Burns and Kaufman, 1982). Results of the test were analyzed by t-test and ANOVA by SAS program. Results are followings. First, chileren's sex and the general tendency of personal characteristic showed significant difference in the emotional personality among 4 personality characteristics. Girls show more positive tendency than boys in moral, physical, appearance and feature which expressed personal feeling and emotion. Also, girls showed more positive tendency than boys in personal characteristic which showed physical ability. Second, Children's sex and individual characteristic in Kinetic Family Drawing respondent characteristic showed significant difference in own's arm length. Also, Using a rare of paper and chapter 1 of the power among the family showed significant difference in styles and symbols. The boys drew lengther arms compared with their height than the girls. The girls were less complicative, anxious, comparative and aggressive for their family. Third, As a result of the study about the relationship between 4 personal characteristics of children and individual's behavior in Kinetic Family Drawing respondent characteristic, the significant difference is showed in academic personality and social personality had higher completion of their father's feature and drew bigger feet. In socal personality, negative behavior than positive children. Fourth, As a result of the study about the relationship between 4 personal characteristics of children and individual's characteristic, the significant difference were found in academic personality, social personality, family personality and emotional personality. Children with negative academic personality drew longer arms than children with positive academic personality, social personality and family personality. Also, Children with negative emotional personality drew more siblings than children with positive emotional personality. Fifth, The academic personality and the social personality had significant difference in the relationship between 4 personal characteristics of children and dynamics. In social personality, normal children were more tendencious to look at the important person with their mother's direction than positive children. Sixth, In terms of the relationship between 4 personal characteristics of children and mode, academic personality and family personality showed significant difference. Children with negative academic personality used more edge of papers than children with positive academic personality and children with positive academic personality and children with negative family personality fold more papers than children with positive family personality. At last, there were no significant difference between 4 personal characteristics of children and styles as well as symbols.

• 대한견주관절학회:학술대회논문집
• /
• 대한견주관절학회 2009년도 제17차 학술대회
• /
• pp.45-45
• /
• 2009

• 한국콘텐츠학회논문지
• /
• 제16권7호
• /
• pp.63-72
• /
• 2016

본 연구는 재한 중국인 유학생의 문화적응 스트레스와 학업과 관련된 학업스트레스 및 진로스트레스를 중심으로 우울의 영향요인을 파악하고자 시도되었다. 2015년 9월 7일부터 10월 15일까지 중국인 유학생 166명을 대상으로 자료를 수집하였다. 대상자의 평균 우울점수는 17.36점(SD 6.77)이었고, 문화적응 스트레스, 학업스트레스, 진로스트레스는 각각 69.51점(SD 19.06), 34.64점(SD 5.03) 그리고 29.13(SD 9.14)점 이었다. 중국인 유학생의 우울수준에 영향을 미치는 요인은 문화적응 스트레스와 진로스트레스로 파악되었으며, 이 두변수의 설명력은 51.9%이었다. 이상으로 중국인 유학생의 우울수준을 개선시키고 건강한 유학생활이 되도록 돕기 위해서는 문화적응 스트레스와 진로스트레스를 파악하고, 스트레스 지각정도가 높았던 학생들에게는 특별한 중재를 제공해야 한다.

• 대한통합의학회지
• /
• 제10권2호
• /
• pp.145-153
• /
• 2022

Purpose : This study aimed to investigate the effects of blended learning on learning satisfaction in nursing students. Methods : This study was conducted with 160 current nursing students in the department of nursing at K university located in city B. All students included in the study understood the purpose of the study and provided informed consent to participate. Data were collected between May 3 and July 9, 2021 and analyzed using SPSS/WIN 22.0. The frequency, percentage, mean, and standard deviation were created, and t-test, ANOVA, and Scheffé test for post hoc analysis were performed. Correlations were analyzed using Pearson's correlation coefficient. The factors influencing learning satisfaction were analyzed using multiple regression. Results : Significant differences were observed for academic stress according to the online classes environmental satisfaction (F=4.10, p=.001), online classes experience (t=4.11, p=.001) and self-directed learning ability according to the grade (F=4.10, p=.001), online classes environmental satisfaction (t=4.11, p=.001). The academic stress of nursing students who experienced blended learning was significantly negatively correlated with self-directed learning ability (r=-.480, p<.001), and learning satisfaction (r=-.236, p<.001). self-directed learning ability showed a significant positive correlation with learning satisfaction (r=.524, p<.001). The regression model for the factors affecting the learning satisfaction of the subjects was statistically significant (F= 3.027, p<.001). The major influential factors of learning satisfaction were grade (𝛽=.154, p=.013), satisfaction with school life (𝛽=.168, p=.032), and satisfaction with non-contact learning environment (𝛽=-.141, p=.028). The explanatory power was 28 %. Conclusion : These results indicate that it is necessary to reduce academic stress and increase self-directed learning ability to enhance learning satisfaction in nursing students through blended learning. In addition, the development and operation of a tailored intervention program is required to help improve learning satisfaction.

• 문화기술의 융합
• /
• 제9권4호
• /
• pp.445-455
• /
• 2023

본 연구는 COVID-19를 경험한 간호대학생의 학업스트레스 요인을 파악하고자 시도되었다. 연구대상은 G도 소재 3개 대학의 간호학과 4학년 172명으로, 2022년 11월 URL설문조사를 이용하여 자료를 수집하였고, SPSS/Win 21.0 프로그램을 이용하여 서술통계, t-test, ANOVA, Pearson's correlation, Hierarchical regression으로 분석하였다. 연구결과 COVID-19를 경험한 간호대학생의 학업스트레스 정도는 2.09점이었고, 학업스트레스 영향요인은 전공만족도, 임상대체실습 만족도, 정서적대처, 문제중심대처, 자기효능감, 자신의 건강상태, 코로나우울 이었으며, 총 설명력은 62.3%이었다. 이러한 연구결과를 기반으로 우리는 간호대학생들의 전공만족도를 높이고, 임상대체실습 만족도를 높일 수 있는 방안 마련으로 향후 재난 및 감염병 상황에서 간호대학생들의 학업스트레스를 낮출 수 있는 체계적 교육방안을 마련해야만 한다.

• 한국조리학회지
• /
• 제7권2호
• /
• pp.25-48
• /
• 2001

Since 1998 IMF economic crisis, hotel companys have made an operation innovation in generally to reinforce a competitive power. Never ther less, a structural depression with high expense of costs-low degree of efficiency and high price of commodities-low degree of growth during the last few years. And hotel companys were doing endeavor for conquer this depression with reshuffle of the personnal system and that systematizing an enterprise and production control. Hotel has more increase personnel expenses percents than increase sold price percents so that hotel reducing cook and as result, hotel has a problem from production selling of foodservice because that is insufficient of cook man power. On studying this research, an importancy of cusine department in inquire hotel and an efficiency man power control of cusine department influence on hotel marketing were made use of analysis for hotel kitchen management. The result of this study is like that. First, the quality of a hotel employee is directly related to that of hotel service, which is functioned as a principle factor on which success or failure of tie hotel very largely depends, Second, fair evaluation of merits. Third, cognition for job as expert. Fourth, the roles and competences of the employees were affected much by the inner or outer environmental changes surrounding the hotel enterprises. Fifth, do not underestimate an intelligent ability and will power of employee, and hotel company have to manage that the employees consult themselves about their things of department and improve with the master sense for job. Sixth, pay increase and intensive system. This system can raise the will to achievement for employee's job, and company can get many benefits from government. Seventh, the employees should be encouraged to have memberships of academic organizations, to actively participate in academic meetings, workshops, conferences, and forums in the area of job performance.

• 가정간호학회지
• /
• 제15권1호
• /
• pp.14-21
• /
• 2008

Purpose: The aim of this study was to analyze the effects of job characteristics on emotional empowerment in visiting health personnel. Methods: Subjects were recruited in ten community health care centers in one directorial area. Data collection was done using a self-report questionnaire. Job characteristics of visiting healthcare personnel were measured using the questionnaire developed by Kang (2006), based on Hackman & Oldham (1975). Emotional empowerment was measured using the questionnaire developed by Kang (2006), based on Spreitzer (1995). Results: First, the score of job characteristics was revealed to be 3.51 points the task significance was high, and the feedback was low. Second, the level of emotional empowerment was revealed to be 3.78 points the meaning was high, and the impact was low. Third, the prediction power of job characteristics on emotional empowerment was 34% autonomy, task identity, and task significance were identified as statistically significant predictive factors. Conclusion: The job characteristics of visiting healthcare personnel are highly correlated with emotional empowerment. Autonomy, task identity, and task significance are predictive factors of emotional empowerment. These results can be used to develop more effective job planning for increasing organizational effectiveness in visiting healthcare personnel.