SOA 기반의 자재관리시스템 설계

안민정,이홍철,진혜진 한국경영과학회 2007 한국경영과학회 학술대회논문집 Vol.2007 No.05

A PRIORI L2-ERROR ESTIMATES OF THE CRANK-NICOLSON DISCONTINUOUS GALERKIN APPROXIMATIONS FOR NONLINEAR PARABOLIC EQUATIONS

안민정,이민아 영남수학회 2010 East Asian mathematical journal Vol.26 No.5

In this paper, we analyze discontinuous Galerkin methods with penalty terms, namly symmetric interior penalty Galerkin methods, to solve nonlinear parabolic equations. We construct finite element spaces on which we develop fully discrete approximations using extrapolated Crank-Nicolson method. We adopt an appropriate elliptic-type projection, which leads to optimal ℓ∞(L2 ) error estimates of discontinuous Galerkin approximations in both spatial direction and temporal direction.

拙條劑 趙聖期論

안민정 동양고전학회 2007 東洋古典硏究 Vol.27 No.-

간호대학생의 학업참여, 학업소진, 스트레스 및 사회적 지지 연구 : 학년별 비교를 중심으로

안민정,강아연,김율아,김민지,김예림,김혜원,나예슬,황윤영 한국학교보건학회 2017 韓國學校保健學會誌 Vol.30 No.2

Purpose: The purpose of this study was to examine and compare the academic engagement, academic burnout, stress, and social support among undergraduate nursing students by grade. Methods: The study is a descriptive comparative survey. The participants were 247 undergraduate nursing students enrolled in 3 universities located in G city. The collected data was analyzed with descriptive statistics, x2 tests, and analysis of covariance, using SPSS/WIN 21.0 program. Results: The students showed significant differences in academic engagement, academic burnout, and stress according to their grade. The post-hoc analysis results showed that sophomores and juniors had lower academic engagement and higher academic burnout and stress than others (i.e., freshmen, or seniors). There was no significant difference in social support among nursing students. Academic engagement had a positive correlation with social support and a negative correlation with academic burnout and stress. Also, academic burnout had a positive correlation with stress and a negative correlation with academic engagement and social support. Conclusion: The findings indicate that nursing students in second and third grade were at risk of academic burnout and under severe stress. Therefore, sophomores and juniors need more attention and care to help them relieve and control stress and burnout and to improve their academic engagement. Also, the findings should be considered when developing plans and/or interventions for nursing students’ major adjustment and academic achievement.

디젤유 분해균주의 특성 및 토양배양

안민정,한윤전,임현섭,최기현,권오범,정병철 한국미생물학회 2003 미생물학회지 Vol.39 No.2

디젤유로 오염된 토양으로부터 분리한 디젤 분해 우수 균주를 HS 균주로 명명하고, 각 균주의 디젤유 분해능과 특성을 조사하였다. 분리된 HS균주의 동정결과 HSI 균주는 Acinetobacter sp. HS2, HS3 균주는Pseudomonas sp.로 동정되었다. 최소배지에서 디젤유2%, pH 7.0,$25^{\circ}C$, 교반속도 200 rpm의 조건으로 5일간 배양한 결과 HSI 균주는 88% 이상의 높은 분해효율을 나타내었다. 소수성과 유화능의 측정 결과 HSI 균주가 가장 높은 소수성을 나타내었고, 유화능은 HS3 균주가 가장 높게 나타났다. 위의 결과를 토대로 액체 배양시 분해효율이 가장 높은 HSI 균주를 선택하여 토양배양을 실시한 결과 30일이 경과된 후 80%이상의 디젤유 분해효율을 나타내었고, 디젤유 분해효율은 미생물 활성과 비례하는 것으로 확인되었다. 따라서 신규 분리된 디젤유 분해균주는 높은 디젤유 분해능과 토양 생존능으로 실제 유류오염 환경에 적용이 가능할 것으로 사료된다. Diesel oil-degrading bacterial strains were isolated from diesel oil contaminated soil and called HS series (HS1, HS2 and HS3). These strains were identified as Acinetobacter sp. (HS1) and Pseudomonas sp. (HS2 and HS3) based on Biolog test, cellular fatty acid composition, and 16S rDNA sequence analysis. These strains were coltivated in liquid minimal media containing 2% diesel oil, and diesel oil-degrading activity was measured. As result, all strains degraded over 70% of total diesel oil. But PAH (polycyclic aromatic hydrocarbon)- and pris- tane-degrading rate of these strain was below 20% of total PAH and pristane. The HS 1 strain showed highest hydrophobicity and low emulsifying activity among the experimental strains and high diesel oil-degrading activity. From the above-mentioned result, microcosm experiment was performed with the HS1 strain. The HS1 strain showed a degrading activity of over 80% of total diesel oil in microcosm test. And microbial activity was correlated to diesel oil-degrading activity. Therefore, it is suggested that the HS1 strains could be effectively used for the bioremediation for diesel oil.

Purification and Characterization of Ascorbic Acid Kinase

안민정,문자영,조용권 한국생명과학회 2003 한국생명과학회 심포지움 Vol.39 No.-

SOA 기반의 자재관리시스템 설계

안민정,이홍철,진혜진 대한산업공학회 2007 대한산업공학회 춘계학술대회논문집 Vol.2007 No.5

간호대학생 대상 시뮬레이션 기반 융합실습교육프로그램 개발 및 효과

안민정,조행난,Dzifa Dordunoo,황윤영 중소기업융합학회 2019 융합정보논문지 Vol.9 No.10

본 연구는 간호대학생 대상 시뮬레이션 기반 융합실습교육을 개발하고 그 효과를 파악하기 위하여 시도되었다. 본 연구는 단일군 반복측정 실험설계를 적용하여 수행되었다. G시 소재 대학에 재학중인 총 77명의 간호대학 4학년생에게 시뮬레이션 기반 실습교육 전, 교육 직후 및 교육 2개월 후에 자료를 수집하였고, repeated measure ANOVA 등을 통하 여 분석하였다. 분석 결과, 간호술기 지식과 간호술기 수행자신감, 학습 자기효능감 및 임상실습 스트레스는 교육 전 대비 교육 직후와 교육 2개월 후에 유의하게 증진되었으나, 교육 직후와 교육 2개월 후 간에는 유의한 차이가 없었다. 본 연구결 과는 시뮬레이션 기반 융합실습교육이 간호대학 4학년생들의 학습 효과를 증가시키고 임상실습 스트레스를 줄이는데 효과 적인 전략임을 시사한다. 향후 무작위 대조군 실험연구를 통해 본 교육프로그램의 효과를 확인하는 연구가 필요하다. The purpose of this study was to develop and evaluate the effects of a simulation-based convergence practicum education program among senior nursing students. A repeated measure experimental design was used. A total of 77 senior nursing students were recruited from a university located in G city. Data was collected at baseline, program completion, and 2 month following completion of the practicum. Repeated measure ANOVA was used to evaluate the effects of the program. There were statistically significant improvements between baseline and program completion and between the baseline and 2 month follow-up. However, there was no significant differences between the program completion and 2 month follow-up. The study demonstrated that simulation-based convergence practicum education was an effective strategy to increase study outcomes and reduce clinical practice stress among senior nursing students. Further studies are needed to evaluate the effects of the program using randomized controlled trials.

대학생의 부정적 심리성향과 학업열의가 자기주도적 학습능력에 미치는 영향

안민정,노주연,장혜주,최주혜,한도헌,한수진,송지은,황윤영 한국학교보건학회 2019 韓國學校保健學會誌 Vol.32 No.2

Purpose: The purpose of this study was to explore self-directed learning ability and its affecting factors amongundergraduate students. Methods: A descriptive cross-sectional study design was used. Using a conveniencesampling method, data were collected from 196 undergraduate students enrolled in one national university. Negativepsychological tendency (i.e. Type D personality), academic engagement, and self-directed learning abilitywere assessed using a structured questionnaire. Data were analyzed by descriptive statistics, t-test, and analysisof covariance, Pearson’s correlation coefficients, and stepwise multiple linear regression, using SPSS/WIN 23.0program. Results: The mean age of the students was 21.61±2.40 years and 56.6% were male students. Approximately, one third (n=67, 34.2%) of the students had Type D personality. The average scores of academicengagement and self-directed learning ability were 3.01±1.14 and 3.46±0.50, respectively. After controlling forsociodemographic variables, the Type D personality and academic engagement were significant predictors ofself-directed learning ability (β=.64, p<.001; β=-.13, p=.021, respectively). This model explained 53.6% of thevariance in self-directed learning ability. Conclusion: The study identified that Type D personality and academicengagement affect self-directed learning ability of undergraduate students, one in a negative way, the other ina positive way. Educators and educational policy makers need to make efforts to include interventions andstrategies that increase academic engagement and change negative psychological dispositions such as D-typepersonality in the undergraduate education curriculum.

서비스 지향 아키텍쳐 기반의 자재관리시스템 설계

안민정,이홍철 대한산업공학회 2007 산업공학 Vol.20 No.3

To survive in rapidly changing business environment, the enterprises of all over the world are trying to integrate their IT infra structure and are trying to automate their business process. Service Oriented Architecture (SOA) is being accepted as an IT standard to support efficient system integration and flexible business process automation between enterprises or departments. The material control system is required this software architecture between manufacturing company and materials supply vendors. This paper introduces concept of SOA, relevant technology about SOA such as Web Services and Business Process Execution Language (BPEL) and Enterprise Service Bus (ESB) and describes how to automate materials control process by designing the material control system based on SOA. The analysis of requirements is proceeded by Unified Modeling Language (UML) and SOA delivery strategy is selected the top-down strategy. And this paper describes how to derive services and operations and how to arrange services in three service layers and how to design business process.