• Journal of the Korea Convergence Society
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• v.9 no.5
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• pp.247-256
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• 2018

The purpose of this study is to examine effects of pre-learning and role learning using video on self-regulated learning of nursing students in fundamental nursing practice education. A nonequivalent control group was designed to conduct a pre-post test for this study. The participants were assigned to the experimental(n=84) or control group(n=76). Data was collected from March to June, 2016. The experimental group received education based on pre-learning and role learning using video for 13 weeks. On the other hand, the control group only received explanation-based education. Data was analyzed using ${\chi}^2-test$, independent t-test, and ANCOVA. There was a significant increase in rehearsal, metacognition, self-efficacy, and help seeking in the experimental group compared to those in the control group. Results of this study indicate that pre-learning and role learning using video were effective in enhancing students' ability in rehearsal, metacognition, self-efficacy, and help seeking sections.

• Journal of Digital Convergence
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• v.15 no.3
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• pp.147-155
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• 2017

The purpose of this study is to conducted on hotel workers. The results of this study are as follows. First, the relationship between self - efficacy and job performance of employees was analyzed. We distributed 300 questionnaires to domestic L hotel employees. A total of 250 questionnaires were retrieved and 233 copies were used for the final analysis, except for 17 unfair questionnaires. The results showed that hotel workers had a positive influence on self - efficacy. Self - efficacy played a role in the relationship between majors' learning and job performance. Based on the results of the research, we develop an industry-university linkage program. Practical majors will increase the workplace adaptability of employees. And the self - efficacy of the employees will be increased to affect the job performance. In the future, I hope that research on the self-efficacy of hotel employees and post-employment job performance will be carried out in the future.

• Journal of the Korean Electrochemical Society
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• v.4 no.2
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• pp.53-57
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• 2001

When an EV is parked for a long period time, the battery capacity naturally decreases due to selfdischarge. Therefore, this effect must be considered for the accurate measurement of the state of charge of EV battery. Battery selfdischarge simulations using the design of experiments among computer simulation methods are compared with experimental data for Ni/MH batteries for electric vehicles. The motivation is to predict the selfdischarge rate of the battery for electric vehicle at all temperature conditions and standing time when electric vehicle could be operated. We developed a general equation representing the seudischarge rate of the electric vehicle battery using design of experiments, and the equation is determined by temperature and standing time of the battery. We selected Ni/MH battery, 12 V-95 Ah, for pure electric vehicle for this study. ID develop the equation using design of experiments we selected temperature range of $-20^{\circ}~30^{\circ}C$ and standing time of 1 day$\~15$ days. We conducted several selfdischarge tests of Ni/MH battery to verify the integrity of the equation. The results showed that the computation values were in good agreement with experimental data.

• The Journal of the Korea Contents Association
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• v.18 no.3
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• pp.409-420
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• 2018

The decision to actively reveal oneself as a consumer on social media depends on whether the focus is more on positive rewards than negative threats associated with self-presentation, that is, who the other party is in that relationship. The audience of self-presentation could also be divided into expressive and instrumental ties: work partners can be classified as an audience of instrumental ties, whereas school friends can be regarded as an audience of expressive ties. This study accordingly predicted that people would focus more on prevention of negative threats than positive reward, exhibiting defensive self-presentation in relationships with strong instrumental ties because the fallout from negative threats due to failed self-presentation have a more detrimental effect than a positive reward from successful self-presentation. The empirical findings thereby indicated that as the proportion of coworkers increased among Facebook friends, the mediation effect through defensive self-presentation increased, whereas such effect through acquisitive self-presentation decreased.

• Journal of the Korea Institute of Military Science and Technology
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• v.16 no.4
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• pp.465-472
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• 2013

Since 1990, Agency for Defense Development is operating the non-magnetic laboratory for the development of key technology for the underwater magnetic stealth part, the research of the magnetic application weapons and the technical support for Korean Navy. Recently, we installed the new three-axis earth magnetic field simulator and the measurement system in the non-magnetic laboratory which is replacing the existing outdated facility. In this paper, we deal with the detailed design result of the earth magnetic field simulator and the measurement system. Also, we describe the effective method to separate the permanent and the induced magnetic field from the measured data for a scaled model ship using the earth magnetic field simulator and the measurement system.

• Journal of the Korea Convergence Society
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• v.10 no.11
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• pp.533-541
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• 2019

This study was designed to construct and test a structural equation model for related factors that affect to self-regulated learning in nursing students. The nursing students was asked to complete a questionnaire, and 273 data units were analyzed with Structural Equation Modeling. The hypothetical model fit indices for the model revealed a fit at a recommended level, and 5 of the 6 paths were statistically significant explaining 68% of the variance. Therefore, education that improves self-determination, interpersonal competence and achievement goal orientation will promote self-regulated learning of nursing students. Competence programs to build the self-autonomy and relationships should be developed.

• The Journal of the Korea Contents Association
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• v.10 no.2
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• pp.231-240
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• 2010

The major purpose of this study is to examine how the perfectionism of dance majors affect self-efficacy and performance satisfaction. The sampling of this study was done in 2009, by using purposive sampling method with the subjects who are currently the students of an arts high school and dance majors of a college in Daejeon and Chungcheongnam-do. Specifically, by dividing the district in Chungnam and Daejeon, one arts high school and one college were selected from each district, and 75 dance majors from 4 schools respectively, total 300 students were examined for the study. Among these 300 students, the number of students' questionnaires used in the final analysis is 274, excluding the questionnaires containing inadequate answers. The adequacy of the questionnaire was verified by factor analysis, and the reliability of the questionnaire by reliability analysis. In the matter of reliability, Cronbach's ${\alpha}$ turned up to be over .602. In this study, factor analysis, reliability analysis, regression analysis, and course analysis were done by using SPSS16.0. With the above research method and results, I could come to a conclusion as following. Above all, perfectionism affects the subordinate variable of self-efficacy, the self-control efficacy. That is, with the higher self-oriented perfectionism and the other-oriented perfectionism, self-efficacy increases more as well. Secondly, perfectionism affects performance satisfaction. In other words, the higher self-oriented perfectionism, the higher performance satisfaction. Thirdly, self-efficacy affects performance satisfaction. That is, higher self-control efficacy makes the performance satisfaction higher. Lastly, perfectionism affects self-efficacy and performance satisfaction either directly or indirectly. Now it is obvious that self-efficacy is the variable that intermediate performance satisfaction.

• Journal of the Korean Magnetics Society
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• v.19 no.2
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• pp.67-73
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• 2009

The changes of geomagnetic flux density distribution on the ground surface by underground empty spaces had been investigated through the variations of the soil density and measuring heights. The geomagnetic flux density distributions were monitored for the surfaces of different density, sink-hole and tunnel by fluxgate-type magnetometer. The underground empty space and low soil density decreased the geomagnetic flux densities, which were decreased from the boundary of raw and low-density (empty) grounds, and showed the lowest value at the center of low-density (empty) ground. The decreases of geomagnetic flux density by underground empty spaces could be found at the surface with the tunnel located at 80 m underground. And, the underground defects of empty spaces, low density zone, fracture zone and sink holes could be monitored by the phenomena of this decreasing flux density.

• Economic and Environmental Geology
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• v.45 no.4
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• pp.377-384
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• 2012

The main field component of the Earth's magnetic field was modeled from the tri-axial magnetometer onboard KOrean MultiPurpose SATellite-II (KOMPSAT-II) for the purpose of satellite attitude control. The model computed by the KOMPSAT-II magnetometer measurement data is compared with the International Geomagnetic Reference Field (IGRF) model of a degree of up to 13 in spherical harmonic coefficients. The previous study with KOMPSAT-I (Kim et al. 2004) indicated a good correlation of power spectrum of spherical harmonic coefficients with respect to the degree up to 5. This study, however, showed an agreement of the degree up to 8-9 of the coefficient power spectrum and a discrepancy between degrees 10 and 13. We have concluded that relevant data selection process, removal of the external field from the data in the high latitude region, an accuracy of the magnetometer all play an important role in finding a coherence with the IGRF model. This study will be extended to the secular variation model of geomagnetism if longer-period data become available.

• 한국항공운항학회:학술대회논문집
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• 2016.05a
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• pp.64-67
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• 2016

본 연구는 객실승무원 교육훈련 만족이 자기효능감 및 서비스태도(서비스 몰입, 서비스 지향의 자발적 행동)에 어떻게 작용하는지 실증적으로 분석하여 바람직한 객실승무원 교육훈련의 방향을 모색하는데 그 목적이 있다. 이를 위해서 비행근무 중인 국내 K항공사 객실승무원 210명을 대상으로 자기 보고식 설문지를 배포하여 유효한 설문지 208부를 대상으로 기초 통계 조사를 실시하였다. 본 연구의 결과는 다음과 같다. 첫째, 교육훈련 내용(용모 및 태도 관련 내용, 서비스자세 관련 내용, 대처요령 관련 내용)은 교육만족에 통계적으로 유의한 영향을 미치는 것으로 나타났다. 둘째, 객실승무원 훈련담당강사는 교육만족에 통계적으로 유의한 영향을 미치는 것으로 나타났다. 셋째, 객실승무원 교육시스템은 교육만족에 통계적으로 유의한 영향을 미치는 것으로 나타났다. 넷째, 객실승무원 교육만족은 자기효능감에 통계적으로 유의한 영향을 미치는 것으로 나타났다. 다섯째, 객실승무원 교육만족은 서비스몰입에 통계적으로 유의한 영향을 미치는 것으로 나타났다. 여섯째, 객실승무원 교육만족은 서비스지향의 자발적 행동에 통계적으로 유의한 영향을 미치는 것으로 나타났다.