유아의 사회적 능력을 매개로 정서성이 놀이행동에 미치는 영향

권기남(Kinam Kwon),민하영(Hayoung Min) 한국보육지원학회 2021 한국보육지원학회지 Vol.17 No.4

Objective: This study focused on the relationships between emotionality, social competence and play behavior in a sample of 218 4- to 5-year olds attending daycare centers. Methods: All variables were measured by the daycare teachers of the surveyed children. The data were analyzed using Simple Regression and Multiple Regression through SPSS Win 25.0. Results: First, preschoolers’ positive emotionality had a negative effect on their play disruption and play disconnection and a positive effect on play interaction. On the other hand, their negative emotionality had a positive effect on play disruption and play disconnection and a negative effect on play interaction. Second, their positive emotionality had a positive influence on social competence and their negative emotionality had a negative influence. Finally, the effect of their positive emotionality on play disruption was partially mediated, and their play disconnection and play interaction was totally mediated by social competence. On the other hand, the effect of preschoolers’ negative emotionality on play disruption and play disconnection was totally mediated, and their play interaction was partially mediated by social competence. Conclusion/Implications: The results of this study imply that we need to help preschoolers promote emotionality and social competence together to change their play behavior positively.

보육교사 양성학과 평가.인증 방안 및 실무추진체계 연구

권기남(Kinam Kwon),김유미(Yumi Kim),조용남(Yong Nam Cho),민미희(Mihee Min) 한국보육지원학회 2021 한국보육지원학회지 Vol.17 No.5

Objective: In this study, a department accreditation system was introduced as a specific way to improve the professionalism of childcare teachers, and evaluation indicators for department accreditation and the implementation system were derived to find a practical direction. Methods: According to the purpose of this study, related laws and websites were reviewed. In addition, in order to investigate opinions on the composition and implementation system of qualification indicators, a meeting was conducted with professors of the department of childcare teacher education and other qualification experts. Results: In order to introduce a department accreditation system for childcare teacher education, it is necessary to specify the relevant laws, and that the operation of an organization affiliated with a public institution is appropriate for the practical implementation of the system. In addition, an evaluation index plan composed of three indicators of educational conditions, curriculum, and performance areas was derived. Conclusion/Implications: In this study, a practical preparation plan, such as evaluation indicators and an implementation system, was presented for the introduction of a department accreditation childcare teacher education system. It is expected that this study will contribute to the successful establishment of the accreditation system of childcare teacher education.

내역 항목 별 상관관계를 고려한 공사비 리스크

권기남(Kwon Kinam),문성우(Moon Sungwoo) 대한토목학회 2005 대한토목학회 학술대회 Vol.2005 No.10

삼각분포를 활용한 공정 별 공사기간 보정

문성우(Moon Sungwoo),권기남(Kwon Kinam) 대한토목학회 2007 대한토목학회 학술대회 Vol.2007 No.10

원장의 변혁적 리더십이 교사의 자아탄력성을 매개로 교사-원아 관계 효능감에 미치는 영향

민하영(Min, Hayoung),권기남(Kwon, Kinam) 한국생활과학회 2021 한국생활과학회 학술대회 Vol.2021 No.5

핵물질 연대측정을 위한 불확도 추정 알고리즘 연구

박재찬,전태훈,송정호,주민수,정진영,권기남,최우철,정재학,JaeChan Park,TaeHoon Jeon,JungHo Song,MinSu Ju,JinYoung Chung,KiNam Kwon,WooChul Choi,JaeHak Cheong 한국방사선산업학회 2023 방사선산업학회지 Vol.17 No.4

Nuclear forensics has been understood as a mendatory component in the international society for nuclear material control and non-proliferation verification. Radiochronometry of nuclear activities for nuclear forensics are decay series characteristics of nuclear materials and the Bateman equation to estimate when nuclear materials were purified and produced. Radiochronometry values have uncertainty of measurement due to the uncertainty factors in the estimation process. These uncertainties should be calculated using appropriate evaluation methods that are representative of the accuracy and reliability. The IAEA, US, and EU have been researched on radiochronometry and uncertainty of measurement, although the uncertainty calculation method using the Bateman equation is limited by the underestimation of the decay constant and the impossibility of estimating the age of more than one generation, so it is necessary to conduct uncertainty calculation research using computer simulation such as Monte Carlo method. This highlights the need for research using computational simulations, such as the Monte Carlo method, to overcome these limitations. In this study, we have analyzed mathematical models and the LHS (Latin Hypercube Sampling) methods to enhance the reliability of radiochronometry which is to develop an uncertainty algorithm for nuclear material radiochronometry using Bateman Equation. We analyzed the LHS method, which can obtain effective statistical results with a small number of samples, and applied it to algorithms that are Monte Carlo methods for uncertainty calculation by computer simulation. This was implemented through the MATLAB computational software. The uncertainty calculation model using mathematical models demonstrated characteristics based on the relationship between sensitivity coefficients and radiative equilibrium. Computational simulation random sampling showed characteristics dependent on random sampling methods, sampling iteration counts, and the probability distribution of uncertainty factors. For validation, we compared models from various international organizations, mathematical models, and the Monte Carlo method. The developed algorithm was found to perform calculations at an equivalent level of accuracy compared to overseas institutions and mathematical model-based methods. To enhance usability, future research and comparisons·validations need to incorporate more complex decay chains and non-homogeneous conditions. The results of this study can serve as foundational technology in the nuclear forensics field, providing tools for the identification of signature nuclides and aiding in the research, development, comparison, and validation of related technologies.

내역항목간 상관관계를 고려한 건설 공사비 보정

문성우(Moon Sungwoo),김종수(Kim Jongsoo),권기남(Kwon Kinam) 대한토목학회 2007 대한토목학회논문집 D Vol.27 No.1D

건설사업에서 생성되는 실적 데이터는 프로젝트의 생산성에 관한 중요한 정보를 제공한다. 최근 발전하고 있는 건설 정보화는 실적 데이터에 대한 축적과 저장을 용이하게 하고 있다. 축적된 실적 데이터를 활용하여 공사비용에 내포되어 있는 불확실성을 파악하고, 적정한 공사비용을 산정하기 위해서는 실적 데이터에 대한 다양한 분석이 필요하다. 본 논문의 목적은 민간기업의 실적 데이터를 기초로 추정 건설비용의 확률적 특성을 고려하는 비용산정 모델을 제시하는 것이다. 본 논문에서는 내역항목이 가지는 상관관계를 고려하여 건설사업이 가지는 기대비용과 분산을 구했다. 상관관계를 고려하여 얻어진 분산을 기초로 하여 동등 위험도를 구하고, 동등 위험도를 얻기 위하여 공사비용을 조정함으로써 공사특성을 반영하는 적정 공사비를 산정했다. 사례분석에서는 민간기업의 실적 데이터를 사용하여 가격결정 모델의 적용성을 검토했다. 사례분석 결과 건설공사의 내역항목 간 상관관계를 고려할 경우 동등 위험도를 나타내기 위해서 다양한 비용범위가 존재한다는 것을 알 수 있었다. 연구결과에서 볼 수 있는 바와 같이 공사의 특성을 고려한 적정비용에 대한 정보를 제공함으로서 입찰참여 여부 등 의사결정을 지원할 수 있을 것이다. Historical cost data offers important information about construction productivity. The current information technology makes it easier to store and cumulate the cost data. The cost data, however, needs to be statistically analyzed to better understand the uncertainty residing in construction cost estimate. The objective of this paper is to provide a cost estimate model considering the correlation of construction cost items. The correlations between cost items is analyzed to find out the characteristics of construction project. The degree of correlation was in turn used to adjust construction cost under equivalent uncertainty. A case study was performed using a construction company's real cost data. The results of the study shows that probabilistic approach provides a more reliable estimate of construction cost for decision making in bidding.

Oxy-PC 발전용 수막형 습식 전기집진기의 입자상 물질 및 SOx 제거 특성

김학준(Hak-Joon Kim),한방우(Bangwoo Han),김용진(Yong-Jin Kim),길상인(Sang-In Keel),윤진한(Jin-Han Yun),권기남(Kinam Kwon),홍정희(Jeong-Hee Hong),김영주(Young-Ju Kim),김태형(Tae-Hyung Kim) 대한기계학회 2012 대한기계학회 춘추학술대회 Vol.2012 No.11

[논문]실적 데이터를 기준으로 하는 건설 공사비 산정방안

문성우,권기남 釜山大學校生産技術硏究所 2005 生産技術硏究所論文集 Vol.64 No.-

건설사업에서 생성되는 실적 데이터는 프로젝트의 생산성에 관한 중요한 정보를 제공한다. 축적된 실적 데이터를 활용하여 공사비용에 내포되어 있는 불확실성을 파악하고l 적정한 공사비용을 산정하기 위해서는 설적 데이터에 대한 다양한 분석이 필요하다. 본 논문의 목적은 민간기업의 실적 데이터를 기초로 추정 건설비용의 확률적 특성을 고려하는 비용산정 모델을 제시하는 것이다. 본 논문에서는 내역항목이 가지는 상관관계를 고려하여 건설사업이 가지는 기대비용과 분산을 구했다. 상관관계를 고려하여 얻어진 분산을 사용하여 공사비용을 조정함으로써 동등 위험도를 얻을 수 있으며, 공사특성을 반영하여 적정한 공사비를 산정할 수 있게 한다. 본 논문에서 보여주는 적정 공사비 산정을 위한 파일렷 시스댐은 실적 공사비 데이터베이스와 연계하여 신속한 공사비 산정이 가능하게 한다.