• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2003년도 추계학술발표대회 요약집
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• pp.68.2-68.2
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• 2003

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2003년도 추계학술발표대회 요약집
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• pp.155.2-155.2
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• 2003

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2005년도 추계학술발표회
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• pp.488-489
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• 2005

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2005년도 추계학술발표회
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• pp.512-513
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• 2005

• 영재교육연구
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• 제25권3호
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• pp.421-437
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• 2015

본 연구에서는 학업소진과 학교적응의 관계에서 영재 청소년의 학업탄력성의 매개효과와 조절효과를 확인하고자 하였다. 이를 위해 인천, 경기, 서울, 창원, 사천 울산 지역의 영재교육원 및 지역영재학급 학생 444명을 대상으로, 학업소진, 학교적응, 영재 청소년의 학업탄력성을 측정하였고, SPSS/WIN 21.0과 AMOS 21.0 통계 프로그램을 이용하여 분석하였다. 본 연구의 결과를 요약하면 다음과 같다. 첫째, 영재 청소년의 학업소진이 학교적응에 영향을 미치는 데 있어 영재 청소년의 학업탄력성이 완전매개(full mediation)하는 것을 확인하였다. 둘째, 영재 청소년의 학업소진이 학교적응에 미치는 영향에서 영재 청소년의 학업탄력성 수준에 따라 달라지는 조절효과를 검증하였다. 특히, 영재 청소년의 학업탄력성이 높은 집단은 학업소진의 저고에 따른 변화가 거의 없지만, 학업탄력성이 낮은 집단은 학업소진이 커짐에 따라 학교적응이 떨어지는 부적관계를 확인할 수 있었다. 이러한 연구결과를 바탕으로 영재 청소년의 학업탄력성의 역할에 대한 현장에서의 시사점을 제시하였다.

• 한국간호교육학회지
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• 제23권1호
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• pp.15-26
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• 2017

Purpose: This study evaluated the efficacy of a communication ability enhancement program for nursing students in Korea through a systematic review of literature and meta-analysis. Methods: The researchers searched data-bases, including the Data Base Periodical Information Academic, Research Information Sharing Service, National Digital Science Library and National Assembly Library. The key words used included 'communication' and 'nursing student'. The researchers evaluated articles published up to July 2016. Out of 381 selected articles, 20 clinical trial studies were meta-analyzed. Each article was evaluated in accordance with the Checklist of Scottish Intercollegiate Guideline Network. The effect size of communication ability, self-efficacy and interpersonal relations were synthesized by a random effects model from analysis software (R 3.2.3). The heterogeneity of effect size was analyzed by exploratory and confirmatory moderator analysis. Results: The overall effect size of the program was of a moderate level (SMD=0.78, 95% CI: 0.49~1.07) along with each outcome of self-efficacy (SMD=0.80, 95% CI: 0.23~1.37), and interpersonal relations (SMD=0.47, 95% CI: 0.14~0.80). For heterogeneity, moderator analysis was performed, by grade, and a statistically significant moderator was found. Conclusion: It is evident that a communication ability enhancement program for nursing students is moderately effective in improving communication ability, self-efficacy and interpersonal relations.

• Nuclear Engineering and Technology
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• 제47권7호
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• pp.939-944
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• 2015

The calibration methods of neutron-measuring devices such as the neutron survey meter have advantages and disadvantages. To compare the calibration factors obtained by the shadow cone method and semi-empirical method, 10 neutron survey meters of five different types were used in this study. This experiment was performed at the Korea Atomic Energy Research Institute (KAERI; Daejeon, South Korea), and the calibration neutron fields were constructed using a $^{252}Californium$ ($^{252}Cf$) neutron source, which was positioned in the center of the neutron irradiation room. The neutron spectra of the calibration neutron fields were measured by a europium-activated lithium iodide scintillator in combination with KAERI's Bonner sphere system. When the shadow cone method was used, 10 single moderator-based survey meters exhibited a smaller calibration factor by as much as 3.1-9.3% than that of the semi-empirical method. This finding indicates that neutron survey meters underestimated the scattered neutrons and attenuated neutrons (i.e., the total scatter corrections). This underestimation of the calibration factor was attributed to the fact that single moderator-based survey meters have an under-ambient dose equivalent response in the thermal or thermal-dominant neutron field. As a result, when the shadow cone method is used for a single moderator-based survey meter, an additional correction and the International Organization for Standardization standard 8529-2 for room-scattered neutrons should be considered.

• 한국운동역학회지
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• 제31권4호
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• pp.259-269
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• 2021

Objective: The purpose of this systematic review and meta-analysis was to investigate age-related bimanual coordination functions in older adults. Method: Thirteen studies that compared bimanual coordination functions in older adults with those in healthy young adults qualified for this meta-analysis. We additionally categorized 21 total comparisons from the 13 qualified studies into two types of task-related moderator variables: (1) kinematic versus kinetic movements and (2) symmetry versus asymmetry movements. Results: Random effects model meta-analysis found that older adults revealed significant bimanual coordination impairments as compared with young adults (Hedges's g = -0.771; p < .0001; I² = 74.437%). We additionally confirmed specific bimanual coordination deficits using two moderator variables: 1) kinematic (Hedges's g = -0.884; p < .0001; I² = 0.000%) and kinetic (Hedges's g = -0.666; p = .023; I² = 86.170%). 2) symmetry (Hedges's g = -0.712; p = .001; I² = 74.291%) and asymmetry (Hedges's g = -0.817; p < .0001; I² = 76.322%). The moderator variable analysis indicated older adults indicated bimanual coordination deficits in the upper extremities than healthy young adults while performing kinematic bimanual coordination tasks and asymmetry coordination tasks. Conclusion: These findings suggest that developing motor rehabilitation programs based on asymmetric bimanual movement task for enhancing interlimb coordination functions of older adults may be crucial for increasing their independence in everyday activities. Given that elderly revealed the deficits in lower extremities coordination when older adults perform gait, posture, and balance, future studies should estimate lower limb coordination functions in elderly people.

• Nuclear Engineering and Technology
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• 제50권8호
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• pp.1266-1276
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• 2018

In this paper, three-dimensional neutronic calculations were performed in order to calculate the dependency of CRW on the temperature of fuel and moderator and the moderator void. Calculations were performed using the known MTR_PC computer codes in the core configuration 61 of TRR. The dependency of CRW on the fuel temperature in the range of $20-340^{\circ}C$ and the moderator temperature of each control rods were studied. Based on the positions of the control rods, the calculations were performed in three different cases, named case A, B and C. By the results, the worth of each control rods increases by increasing of the coolant temperature in all methods, however, the total CRW is somewhat independent of the fuel temperature. In addition, the results showed that the variation of CRW versus density depends on the positions of the control rods and the most change in CRW in the coolant temperature, $20-100^{\circ}C$ (279 pcm), belongs to SR4. Finally the effect of void on CRW was studied for different void fraction in coolant. The most worth change is about $2 for 40% void fraction related to SR1 and SR3 in case B. For 40% void fraction, the total CRW increases about $7.5, $6 and $7 in cases, A, B and C, respectively.

• 한국항행학회논문지
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• 제26권5호
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• pp.289-303
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• 2022

이 연구의 목적은 공항운영자들이 인식하고 있는 4차 산업혁명이 공항경영시스템에 미치는 영향과 이러한 영향 관계 간에서 융합과 리더십의 조절효과를 규명하는 것이다. 데이터는 대한민국에 있는 6개 국제공항에서 Simple random sampling으로 공항운영자를 대상으로 설문조사를 통해 수집하였다. 데이터 분석은 Structural equation modeling을 사용하였다. 연구결과는 4차 산업혁명이 공항경영시스템에 긍정적으로 영향을 미치는 것을 발견하였다. 또한 융합 및 리더십의 조절효과는 통계적으로 유의한 것으로 나타났다. 이 논문에서 우리는 공항경영시스템을 4차 산업혁명 시대에 부합하는 시스템으로 재구축해야 한다고 주장한다. 이 논문은 공항 연구자들에게 이론적 근거 자료와 실증연구의 방향을 제공하고 공항기업 경영자들과 공항정책 기획자들에게 시사점을 제공한다. 이 연구결과는 4차 산업혁명의 기술을 채택한 국제공항에 특히 유용하다.