시․공간적 유량 변화를 고려한 탄력적 하천관리 기준유량 산정 및 평가

박정은,김한나,류경식,이을래 한국수자원학회 2016 한국수자원학회논문집 Vol.49 No.8

An Idea to estimate flexible criteria for river water use permits was proposed that takes the spatio-temporal flow variation along the river into account, which was applied to the Keumho River, one of the tributary of the Nakdong River in Korea. This idea implies the temporal division of four periods with different criteria, combining flood/non-flood seasons and irrigation/non-irrigation periods, while a single one has been applied throughout the year in the current practice. Through flow regime analysis of daily natural flow simulations at Dongchon and Seongseo, the control points of the study area, Q355 and 1Q10 for non-flood and non-irrigation period, Q275 for non-flood and irrigation period, Q185 for flood and irrigation period were suggested respectively. So, those values that subtract instream flow were determined as the flexible criteria in each season. From the comparison of current practice and the proposed method, it was estimated that 10.6 million m3/year is available for more water use permits without additional development of water storage. Therefore, it is conceived that flexible criteria for river water use permission suggested in this study can contribute to improve the national policies for more efficient water resources management in the future. 시․공간적 유량변화를 반영한 탄력적인 하천수 사용허가 기준유량 설정 방법을 개발하고 이를 금호강 유역에 적용하여 현재 관리방식과 비교․평가하였다. 홍수기/이수기, 관개기/비관개기를 고려하여 4개의 시기로 구분하고, SWAT모형의 10년간 일별 모의 자연유량을 활용하여 유역내 주요지점인 동촌과 성서 수위관측지점에서 각 기간별 안정적으로 흐르는 유량(기준갈수량, 저수량, 평수량, 평균갈수량)을 판단하였다. 금호강 19개 표준유역의 4개 시기별 안정적으로 흐르는 유량에서 하천유지유량을 제외한 값을 시기별 허가기준유량으로 설정하고 하천수 허가량과 회귀량을 고려하여 가용유량을 산정하였다. 현재 연중 일정하게 적용되는 하천수 사용허가 기준유량(기준갈수량에서 유지유량을 제외한 값)과 본 연구에서 제시한 탄력적 기준유량을 적용하였을 때를 비교한 결과, 추가적인 수자원 확보시설을 건설하지 않고도 10.6 백만m3/년의 가용수량을 확보할 수 있을 것으로 나타났다. 그러므로 본 연구에서 개발된 시․공간적 유량변화를 고려한 탄력적 하천관리 기준유량 산정 방안은 효율적인 물이용을 위한 정책 개선에 활용할 수 있을 것이다.

K컬쳐 시대의 음악과 교육과정에 의한 교과서 구현 방향 탐색

박정은 한국음악응용학회 2022 음악응용연구 Vol.14 No.-

국악중심 집단음악치료가 아동의 자아존중감과 사회성 향상에 미치는 효과

박정은,이형환 한국예술심리치료학회 2020 예술심리치료연구 Vol.16 No.2

본 연구는 국악중심 음악치료 프로그램이 아동의 자아존중감과 사회성에 미치는 효과를 검 정하여 아동의 자아존중감과 사회성을 향상시키고자 하는데 그 목적이 있다. 본 연구의 대상은 경기도 A시의 아동 24명 중 통제집단 12명, 실험집단 12명을 무선 배치하였다. 연구도구는 자 아존중감과 사회성 측정도구를 실험집단과 통제집단에게 사전・사후로 검사를 실시하였다. 본 연구는 실험집단과 통제집단 간의 동질성확인을 위해 t검정 실시 후 효과성을 검증하기 위해 사전 검사 결과를 공변인으로 통제해서 공변량 분석(ANCOVA)을 실시하였다. 이에 따른 연구 결과는 다음과 같다. 첫째, 국악중심 음악치료 프로그램은 아동의 자아존중감 총점과 하위영역 인 유능감과 가치감, 통제감 향상에 긍정적인 효과를 주었다. 즉, 국악중심 음악치료 프로그램 이 아동의 자아존중감 향상에 효과적으로 작용하였다고 할 수 있다. 둘째, 국악중심 음악치료 프로그램은 아동의 사회성 총점 뿐 아니라 하위영역 중 협동성과 타인이해성, 또래 간 상호작 용에 긍정적인 효과를 주었다. 즉, 국악중심 음악치료 프로그램이 아동의 사회성 향상에 효과 적으로 작용하였다고 할 수 있다. 이상의 연구결과에서 국악중심 음악치료 프로그램은 아동의 자아존중감과 사회성 향상 영향을 미치고, 정서적인 안정감과 심리적 회복에 도움을 주어 자아 존중감과 사회성 향상을 위한 중재프로그램에 효과적임이 입증되었다. The purpose of this study is to improve the self-esteem and sociality of children by examining the effects of traditional music-centered music therapy programs on children's self-esteem and sociality. Among 24 children in A city, Gyeonggi-do, 12 control and 12 experimental groups were randomly assigned for the study. In order to verify the homogeneity between the experimental and the control group, this study conducted ANCOVA by controlling the pre-test results as a covariate to verify the effectiveness after the t-test. The results of the study are as follows. First, the traditional music-centered music therapy program had a positive effect on improving the total self-esteem and sub-category of children, competence, value, and control. In other words, the tractional music-centered music therapy program effectively contributed to the improvement of children's self-esteem. Second, the program had a positive effect on children's overall social scores as well as cooperation, other people's understanding, and peer-to-peer interactions among sub-domains. In other words, the program was effective in improving children's social skills. From the above research results, it was proved that the traditional music-centered music therapy program has an effect on improving self-esteem and sociality of children, and is effective in an intervention program for improving self-esteem and sociality by helping emotional stability and psychological recovery.

HJ01이 OP9세포에서의 지방 분화와 P-407로 유발한 고지혈증 흰쥐에 미치는 영향

박정은,한상용,최은식,정명수,김윤경,Park, Jung-Eun,Han, Sang-Yong,Choi, Eun-Sik,Chong, Myong-Soo,Kim, Yun-Kyung 대한한의학방제학회 2013 大韓韓醫學方劑學會誌 Vol.21 No.1

Objectives : This study was designed to investigate the effect of a herbal preparation HJ01 consisting of Salicornia herbacea, Citri Reticulatae Pericarpium, Crataegi Fructus and Glycyrrhizae Radix on adipocyte differentiation in OP9 cells and on poloxamer 407(P-407)-induced hyperlipidemia in mice. Methods : 1. MTT assay was used to evaluate the potential cytotoxicity of Salicornia herbacea, Citri Reticulatae Pericarpium, Crataegi Fructus, Glycyrrhizae Radix and HJ01, respectively. 2. Bone-marrow derived OP9 cells were treated with HJ01, and the alterations in fat storage in the cells were determined by the Oil red O assay. 3. The protein level of CAAAT/enhancer binding protein alpha($C/EBP{\alpha}$), as a adipocyte differentiation marker, was examined using western blot analysis in differentiated OP6 cells. 4. Adult male C57BL6 mice received intraperitoneal injections of P407 to induce hyperlipidemia, simultaneously, were treated with HJ01 for 4 weeks. Then the cholesterol (TC), triglyceride (TG) and high-density lipoprotein-cholesterol (HDL-c) levels in sera and liver tissues were measured. Results : 1. The MTT assay exhibited that Salicornia herbacea, Citri Reticulatae Pericarpium, Crataegi Fructus, Glycyrrhizae Radix and HJ01 showed no significant cytotoxicity in tested dosages. 2. Ten days' treatment with HJ01 markedly inhibited the increases in fat storage in differentiated OP6 cells. 3. Four weeks' treatment with HJ01 down-regulated the protein level of CAAAT/enhancer binding protein alpha($C/EBP{\alpha}$) but up-regulated the levels of adiponectin in differentiated OP9 cells. 5. HJ01 inhibited the accumulation of TC and TG in liver tissues and increased serum levels of TC in hyperlipidemic mice. Conclusions : These results suggest that HJ01 can in vitro inhibit adipocyte differentiation and fat storage in OP6 cells, in vivo improve the hyperlipidemia induced by P-407 in mice, which may be mediated by promoting glucose uptake and improving a lipid metabolite profile.

ESG를 통한 지속가능경영과 한국수자원공사의 공유가치창출 전략

박정은 한국수자원공사 2021 저널 물 정책·경제 Vol.35 No.-

인공지능 스피커의 세대별 온라인 리뷰 분석을 통한 사용자 경험 요인 탐색

박정은,양동욱,김하영,Park, Jeongeun,Yang, Dong-Uk,Kim, Ha-Young 한국융합학회 2021 한국융합학회논문지 Vol.12 No.7

인공지능 스피커 시장은 꾸준히 성장하고 있지만, 실제 스피커 사용자들의 만족도는 42%에 그치고 있다. 따라서, 본 연구에서는 인공지능 스피커의 세대별 토픽 변화와 감성 변화를 통해 사용자 경험을 저해하는 요소는 무엇인지 분석해 보고자 한다. 이를 위해 아마존 에코 닷 3세대와 4세대 모델에 대한 리뷰를 수집하였다. 토픽모델링 분석 기법을 사용하여 세대별로 리뷰를 이루는 주제 및 주제의 변화를 찾아내고, 딥러닝 기반 감성 분석을 통해 토픽에 대한 사용자 감성이 세대에 따라 어떻게 변화되었는지 살펴보았다. 토픽모델링 결과, 세대별로 5개의 토픽이 도출되었다. 3세대의 경우 스피커의 일반적 속성을 나타내는 토픽은 제품에 긍정적 반응 요인으로 작용했고, 사용자 편의 기능은 부정적 반응 요인으로 작용했다. 반대로 4세대에서는 일반적 속성은 부정적으로, 사용자 편의 기능은 긍정적으로 도출되었다. 이와 같은 분석은 방법론 측면에서 어휘적 특징뿐 아니라 문장 전체의 문맥적 특징이 고려된 분석결과를 제시할 수 있다는 것에 그 의의가 있다. The AI speaker market is growing steadily. However, the satisfaction of actual users is only 42%. Therefore, in this paper, we collected reviews on Amazon Echo Dot 3rd and 4th generation models to analyze what hinders the user experience through the topic changes and emotional changes of each generation of AI speakers. By using topic modeling analysis techniques, we found changes in topics and topics that make up reviews for each generation, and examined how user sentiment on topics changed according to generation through deep learning-based sentiment analysis. As a result of topic modeling, five topics were derived for each generation. In the case of the 3rd generation, the topic representing general features of the speaker acted as a positive factor for the product, while user convenience features acted as negative factor. Conversely, in the 4^th generation, general features were negatively, and convenience features were positively derived. This analysis is significant in that it can present analysis results that take into account not only lexical features but also contextual features of the entire sentence in terms of methodology.

Accuracy of Horse-Riding Energy Consumption according to Accelerometer Wearing Location

박정은,이미현,Seungyun Shin 국민체육진흥공단 한국스포츠정책과학원 2015 International Journal of Applied Sports Sciences Vol.27 No.2

The purpose of this study is to verify the accuracy of energy consumption per wearing location (waist, wrist, ankle) of uniaxial accelerometer (GT1M) during horse-riding exercise (normal-walking, fast-walking, running). The study subjects were conveniently sampled from 11 males in their 20s from S horse-riding course who have over 3 years of experience in horse-riding and are licensed as leisure sports instructors (horse-riding), and the following conclusion was drawn. For normal-walking, there was no significant difference of standard energy consumption among waist, wrist, and ankle, and all three locations showed confidence interval with small deviation in Bland-Altman Plot. On the other hand, for fast-walking and running, only wrist showed no significant difference, where only wrist location showed low-deviation confidence interval in Bland-Altman Plot. According to such results, the accuracy was relatively high for wrist-wearing when predicting horse-riding activity energy consumption using accelerometer. Therefore, the wearing location must be considered when predicting horse-riding activity energy consumption with accelerometer on site.

Psychometric Evaluation of the Korean Version of the Student Evidence-Based Practice Questionnaire (S-EBPQ)

박정은,황지인 한국간호과학회 2021 Asian Nursing Research Vol.15 No.1

Purpose: Evidence-based practice (EBP) is a key competency that undergraduate nursing students need to learn, as EBP competence is essential for the effective implementation of EBP. However, few studies have comprehensively assessed the aspects of EBP competence using a reliable and valid measure specific to Korean nursing students. This study aimed to translate the Student Evidence-Based Practice Questionnaire (S-EBPQ) into Korean and evaluate its psychometric properties. Methods: The original S-EBPQ was translated into Korean. After a pilot test, a convenience sample of 249 college students with more than four weeks of clinical training experience was selected from three universities in September 2017. Reliability and construct validity were evaluated using exploratory and confirmatory factor analyses. Concurrent validity was evaluated by correlating the measure with informatics competency. Results: The exploratory factor analysis revealed four factors that explained 66.3 of the variance. The confirmatory factor analysis yielded a 4-factor structure (c2/df = 1.52, p < .001, standardized root-meansquare residual = .07, root-mean-square error of approximation = .07, goodness of fit index = .84, comparative fit index = .91). The Cronbach’s a was .81 for the total scale. The scale’s correlation with informatics competency was r = .55. Conclusions: The Korean S-EBPQ is a reliable and valid tool that has utility for assessing EBP competence in Korean nursing students and for making comparisons of the EBP competence of nursing students from other countries.

The Roles of Market-Based Learning and Customer Orientation in Shaping Effective Selling Behavior and Efforts

박정은,김성진,이성호 한국마케팅학회 2009 ASIA MARKETING JOURNAL Vol.11 No.2

Although previous studies have made significant progress in adaptive selling behavior (ASB), few studies have considered salesperson’s customer orientation (CO) and learning behavior as determinants of effective sales management (ASB and relationship-making efforts), despite the discussion of important roles of these constructs. The authors test not only the relationships of salesperson’s CO and market-based learning behavior to ASB and relationship-making efforts, but also the effects of ASB on relationship-making efforts and performance. The results of the study, which is done with samples of salespeople from Korean companies, indicate that salesperson’s CO and market-based learning behavior are identified as significant determinants of ASB. Moreover, both salesperson’s ASB and relationship-making efforts have significant effects on sales performance. On the other hand, as per salesperson’s relationship-making efforts, salesperson’s CO has a positive effect, but salesperson’s market-based learning behavior and ASB do not influence his or her relationship-making efforts, which suggest a provocative possibility of conceptualization regarding the relationship between ASB and relationship management efforts.

The Effect of Body Composition on Pulmonary Function

박정은,정진홍,이관호,신경철 대한결핵및호흡기학회 2012 Tuberculosis and Respiratory Diseases Vol.72 No.5

Background: The pulmonary function test is the most basic test method to diagnosis lung disease. The purpose of this study was to research the correlation of the body mass index (BMI), the fat percentage of the body mass (fat%), the muscle mass, the fat-free mass (FFM) and the fat-free mass index (FFMI), waist-hip ratio (WHR), on the forced expiratory volume curve. Methods: Between March and April 2009, a total of 291 subjects were enrolled. There were 152 men and 139female (mean age, 46.3±9.92 years), and they were measured for the following: forced vital capacity (FVC), forced expiratory volume at 1 second (FEV1), and forced expiratory flow during the middle half of the FVC (FEF25-75)from the forced expiratory volume curve by the spirometry, and the body composition by the bioelectrical impedance method. Correlation and a multiple linear regression, between the body composition and pulmonary function, were used. Results: BMI and fat% had no correlation with FVC, FEV1 in male, but FFMI showed a positive correlation. In contrast, BMI and fat% had correlation with FVC, FEV1 in female, but FFMI showed no correlation. Both male and female, FVC and FEV1 had a negative correlation with WHR (male, FVC r=−0.327, FEV1 r=−0.36; p<0.05;female, FVC r=−0.175, FEV1 r=−0.213; p<0.05). In a multiple linear regression of considering the body composition of the total group, FVC explained FFM, BMI, and FFMI in order (r2=0.579, 0.657, 0.663). FEV1 was explained only fat% (r2=0.011), and FEF25-75 was explained muscle mass, FFMI, FFM (r2=0.126, 0.138, 0.148). Conclusion: The BMI, fat%, muscle mass, FFM, FFMI, WHR have significant association with pulmonary function but r2 (adjusted coefficient of determination) were not high enough for explaining lung function. Background: The pulmonary function test is the most basic test method to diagnosis lung disease. The purpose of this study was to research the correlation of the body mass index (BMI), the fat percentage of the body mass (fat%), the muscle mass, the fat-free mass (FFM) and the fat-free mass index (FFMI), waist-hip ratio (WHR), on the forced expiratory volume curve. Methods: Between March and April 2009, a total of 291 subjects were enrolled. There were 152 men and 139female (mean age, 46.3±9.92 years), and they were measured for the following: forced vital capacity (FVC), forced expiratory volume at 1 second (FEV1), and forced expiratory flow during the middle half of the FVC (FEF25-75)from the forced expiratory volume curve by the spirometry, and the body composition by the bioelectrical impedance method. Correlation and a multiple linear regression, between the body composition and pulmonary function, were used. Results: BMI and fat% had no correlation with FVC, FEV1 in male, but FFMI showed a positive correlation. In contrast, BMI and fat% had correlation with FVC, FEV1 in female, but FFMI showed no correlation. Both male and female, FVC and FEV1 had a negative correlation with WHR (male, FVC r=−0.327, FEV1 r=−0.36; p<0.05;female, FVC r=−0.175, FEV1 r=−0.213; p<0.05). In a multiple linear regression of considering the body composition of the total group, FVC explained FFM, BMI, and FFMI in order (r2=0.579, 0.657, 0.663). FEV1 was explained only fat% (r2=0.011), and FEF25-75 was explained muscle mass, FFMI, FFM (r2=0.126, 0.138, 0.148). Conclusion: The BMI, fat%, muscle mass, FFM, FFMI, WHR have significant association with pulmonary function but r2 (adjusted coefficient of determination) were not high enough for explaining lung function.