학교급식 영양(교)사의 경험에 따른 로컬푸드 이용에 대한 인식 및 발전방향에 관한 질적 연구

박미영,김순경,Park, Mi-Young,Kim, Soon-Kyung 한국식품영양학회 2015 韓國食品營養學會誌 Vol.28 No.4

In the present study, we conducted in-depth interviews with school dieticians and nutrition teachers to determine the local foods they were aware of and their experiences with local foods. We also aimed to obtain more detailed measures for local food vitalization and suggestions for improvements. In-depth interviews were performed with 8 school dieticians and nutrition teachers, who stated that local food vitalization was needed for school food services, because it could be a foundation for securing safefood products, student healthi mprovements, environmental protection, and the establishment of a general consumption market. However, they were aware of a higher number of disadvantages than advantages in school situations and indicated the deterioration of the quality of food products as the biggest disadvantage. The most-suggested measurement items for local food vitalization in schools included improvement of the food distribution system, expansion of education, information sharing, prevention of monopolies, improvement of food-product quality, and mass production. In addition, it was suggested that school dieticians and nutrition teachers should invest efforts in the development of excellent recipes and varied diets utilizing local foods. Therefore, system supplementation is urgently required in order for school food service officials, and consumers, to efficiently introduce and vitalize local foods. It is also necessary to foster an environment that encourages trust-based relationships with producers to maximize the effect of system supplementation. This would be the foundation for improving the health of students, improving food-service quality, nutrition management, and vitalization of the regional economy in the future, and will positively affect students' food consumption patterns even after they become adults.

고체산화물 연료전지 스택 열화 방지를 위한 전해질 기술

박미영,배홍열,임형태,Park, Mi Young,Bae, Hongyeul,Lim, Hyung-Tae 한국세라믹학회 2014 한국세라믹학회지 Vol.51 No.4

The stability of a solid oxide fuel cell (SOFC) stack is strongly dependent on the magnitude and profile of the internal chemical potential of the solid electrolyte. If the internal partial pressure is too high, the electrolyte can be delaminated from the electrodes. The formation of high internal pressure is attributed to a negative cell voltage, and this phenomenon can occur in a bad cell (with higher resistance) in a stack. This fact implies that the internal chemical potential plays an important role in determining the lifetime of a stack. In the present work, we fabricate planar type anode-supported cells ($25cm^2$) with a bi-layer electrolyte (with locally increased electronic conduction at the anode side) to prevent high internal pressure, and we test the fabricated cells under a negative voltage condition. The results indicate that the addition of electronic conduction in the electrolyte can effectively depress internal pressure and improve the cell stability.

전착법에 의한 p-형 Sb_xTe_y 박막 형성 및 열전특성 평가

박미영,임재홍,임동찬,이규환,Park, Mi-Yeong,Lim, Jae-Hong,Lim, Dong-Chan,Lee, Kyu-Hwan 한국재료학회 2011 한국재료학회지 Vol.21 No.4

The electro-deposition of compound semiconductors has been attracting more attention because of its ability to rapidly deposit nanostructured materials and thin films with controlled morphology, dimensions, and crystallinity in a costeffective manner (1). In particular, low band-gap $A_2B_3$-type chalcogenides, such as $Sb_2Te_3$ and $Bi_2Te_3$, have been extensively studied because of their potential applications in thermoelectric power generator and cooler and phase change memory. Thermoelectric $Sb_xTe_y$ films were potentiostatically electrodeposited in aqueous nitric acid electrolyte solutions containing different ratios of $TeO_2$ to $Sb_2O_3$. The stoichiometric $Sb_xTe_y$ films were obtained at an applied voltage of -0.15V vs. SCE using a solution consisting of 2.4 mM $TeO_2$, 0.8 mM $Sb_2O_3$, 33 mM tartaric acid, and 1M $HNO_3$. The stoichiometric $Sb_xTe_y$ films had the rhombohedral structure with a preferred orientation along the [015] direction. The films featured hole concentration and mobility of $5.8{\times}10^{18}/cm^3$ and $54.8\;cm^2/V{\cdot}s$, respectively. More negative applied potential yielded more Sb content in the deposited $Sb_xTe_y$ films. In addition, the hole concentration and mobility decreased with more negative deposition potential and finally showed insulating property, possibly due to more defect formation. The Seebeck coefficient of as-deposited $Sb_2Te_3$ thin film deposited at -0.15V vs. SCE at room temperature was approximately 118 ${\mu}V/K$ at room temperature, which is similar to bulk counterparts.

한국 성인 2형 당뇨병 환자를 위한 당뇨 중재 프로그램 효과에 대한 메타 분석

박미영,김정민,Park, Mi-Young,Kim, Joungmin 한국식품영양학회 2022 韓國食品營養學會誌 Vol.35 No.3

This study aimed to provide directions and implications for a future program by analyzing studies on diabetes programs from 2000 to 2020. Among the studies with control and experimental groups, the selected studies included ones that provided intervention to patients with diabetes and ones that contained descriptive statistics. Sixteen studies were selected to verify the effectiveness and homogeneity of the data coding meta-analysis. The overall effect size in the diabetes program combined estimate was 0.398 (95% CI: 0.268, 0.425, p=0.000). Among the dependent variables, fasting blood glucose (-0.616) and glycated hemoglobin (-0.442) showed median effect sizes, but the effect of fasting blood glucose was not statistically significant. In terms of the study design, non-randomized control trials (NRCTs) (-0.543) was more effective than randomized control trials (RCTs) (0.719). Among, the counseling and self-management program (-3.241) showed a very large effect size. Furthermore, the cognitive-behavioral (-0.828) and self-management (-0.482) programs were also found to have a positive effect on lowering fasting blood glucose. As the importance of diabetes management increases, further studies based on RCT should be actively performed, and differentiated and specialized diabetes intervention plans need to be established.

이미지 퍼지화 기반 Canny 에지 검출기 설계에 관한 연구

박미영,김철원,박종훈,Park, Mi-Young,Kim, Chul-Won,Park, Jong-Hoon 한국정보통신학회 2011 한국정보통신학회논문지 Vol.15 No.9

본 논문에서는 Canny 에지 검출 알고리즘의 핵심이라 할 수 있는 언어적인 애매한 개념인 "좋은 검출"과 "좋은 지역화" 문제를 퍼지 추론 방식을 통해 처리하는 접근방식을 제안하고, 그레이 스케일 이미지에 관해 퍼지 규칙 기반의 Canny 에지 검출기를 설계한다. 설계의 핵심은 화소들의 그레이 레벨들을 몇 가지의 언어적인 변수들로 분할한 다음에 퍼지 추론 규칙에 따라 편미분 계수들을 근사시키는데 있다. 이러한 접근방식은 기울기 및 기울기 변화에 따른 퍼지 제어 기법과 유사한 측면을 가진다. 이러한 작업을 바탕으로 퍼지 규칙 기반 Canny 에지 검출기를 구현하고, 결과들을 기존 방법과 비교한다. 특히, 제안된 접근 방식은 좁은 동적 범위의 그레이 레벨 이미지의 에지 검출 및 선명화에 있어서 장점을 가진다. This paper suggests an approach to the subtle concept, "good", through the fuzzy logic and the design of the Canny edge detector of Gray scale images based on the rules of fuzzy anisotropic diffusion. The Canny edge detection algorithms design is to divide the gray levels into pixels and then calculate the diffusion coefficients at each pixel of non-edgy regions. Based on this processing, we present the Canny edge detector implementing fuzzy logic and comparing the results to other existing methods. The proposed approach is the narrow dynamic range of the gray-level image Sharpening the edge detection and has the advantage.

롤투롤시스템을 이용하여 PET 필름위에 제조된 SiO₂-ITO 박막의 색도(b*), 면저항과 투과도 연구

박미영,김정수,강보갑,김혜영,김후식,임우택,최식영,Park, Mi-Young,Kang, Bo-Gab,Kim, Jung-Soo,Kim, Hye-Young,Kim, Hu-Sik,Lim, Woo-Taik,Choi, Sik-Young 한국재료학회 2011 한국재료학회지 Vol.21 No.5

This paper has relatively high technical standard and experimental skill. The fabrication of TCO film with high transparency, low resistance and low chromaticity require exact control of several competing factors. This paper has resolved these problems reasonably well, thus recommended for publication. Indium tin oxide(ITO) thin films were by D.C. magnetron roll-to-roll sputter system utilizing ITO and $SiO_2$ targets of ITO and $SiO_2$. In this experiment, the effect of D.C. power, winding speed, and oxygen flow rate on electrical and optical properties of ITO thin films were investigated from the view point of sheet resistance, transmittance, and chromaticity($b^*$). The deposition of $SiO_2$ was performed with RF power of 400W, Ar gas of 50 sccm and the deposition of ITO, DC power of 600W, Ar gas of 50 sccm, $O^2$ gas of 0.2 sccm, and winding speed of 0.56m/min. High quality ITO thin films without $SiO_2$ layer had chromaticity of 2.87, sheet resistivity of 400 ohm/square, and transmittance of 88% and $SiO_2$-doped ITO Thin film with chromaticity of 2.01, sheet resistivity of 709 ohm/square, and transmittance of more than 90% were obtained. As a result, $SiO_2$ was coated on PET before deposition of ITO, their chromaticity($b^*$) and transmittance were better than previous results of ITO films. These results show that coating of $SiO_2$ induced arising chromaticity($b^*$) and transmittance. If the thickness of $SiO_2$ is controlled, sheet resistance value of ITO film will be expected to be better for touch screen. A four point probe and spectrophotometer are used to investigate the properties of ITO thin films.

초등 예비교사와 현직교사의 수학 평가문항 개발사례 연구

박미영,Park, Mi-Yeong 영남수학회 2016 East Asian mathematical journal Vol.32 No.2

The purpose of this study is to investigate the assessment expertise of Mathematics' teachers, focusing on the competence in designing assessment item development. In this present research, I analysed how the teachers' competence appears in designing assessment items development when they generated problems the given problem into a new one. To examine this assumption, the following research questions were posed and investigated in the present study : How do Pre-service and In-service Teachers in primary schools develop the assessment item when generating problems the given problems into new problems? The result from the case study of metamorphosing the given problem into a new problem teachers used similar patterns switching numbers or changing units in order to develop new problems. Also, teachers in primary schools tend to develop problems as commonly as in the mathematics workbooks. In-service teachers tend to have better skills developing assessment items, but there were quite much of variability between individuals.

데이터베이스 시스템 품질 평가 모듈 개발에 관한 연구

박미영,김민정,승현우,Park, Mi-Young,Kim, Min-Jung,Seung, Hyon-Woo 한국도서관정보학회 2008 한국도서관정보학회지 Vol.39 No.4

본 연구는 데이터베이스 시스템 품질 개선 성숙도 모델의 필요성을 인식하고 우선 일차연구로 데이터베이스 시스템 품질 평가에 적용할 수 있는 품질 평가 모듈을 개발하고자 한다. 데이터베이스 시스템 품질 관리 및 개선을 위해서는 데이터베이스 시스템 품질을 체계적으로 평가하기 위한 평가 모듈이 필요하다. 이러한 필요성에 따라 본 연구는 다음의 목적을 수행한다. 첫째 데이터베이스 시스템 품질 평가를 위해 ISO/IEC 9126시리즈를 기반으로 품질평가 특성과 부특성을 선정하고 평가 모듈(메트릭)을 개발한다. 둘째 산업계와 학계간에 인지하고 있는 품질 평가특성의 중요도에 대해 비교 분석한다. 품질 평가 모듈을 개발하여 정량적 평가에 적용할 수 있는 이론적 실증적 토대를 마련하였다는 점에서 중요한 의의를 갖으며 이는 데이터베이스 시스템 품질 평가에 대한 연구의 기초자료로 활용될 수 있을 것이다. 또한 후속연구에서는 데이터베이스 시스템 품질 평가를 통해 품질을 개선할 수 있는 품질 개선 성숙도 모델을 개발하는 연구로 진행되어야 할 것이다. This study is to develop quality assessment module to apply database system quality assessment thus, recognizing necessity of database system quality improvement maturity model. To manage and improve of database system quality, assessment module is needed to assess database system quality systematically. This study is to perform for the purpose of follows. First, this study is to select quality characteristics and sub characteristics on based on ISO/IEC 9126 series and to develop assessment module for database system quality assessment. Second, this study is to compare and to analysis about quality assessment characteristics of two groups. This study is to have significance to apply quantitative assessment in theoretical and practical basis and is to applicate basic materials of study in database system quality assessment. Also, in succeeding study, it will be to develop of database system quality improvement maturity model.

도서관 입장에서의 도서정보에 대한 제언

박미영,Park, Mi-Yeong 한국도서관협회 2007 圖協會報 Vol.48 No.7

중등 예비교사와 현직교사의 수학과 평가문항 개발에 대한 자기인식 연구

박미영,Park, Mi-Yeong 대한수학교육학회 2015 학교수학 Vol.17 No.2

본 연구의 목적은 수학교사의 평가 전문성 기준에서 평가도구의 개발과 관련된 세부 내용 중 평가문항 개발에 대한 역량을 탐색하는 것으로 중등학교 예비교사와 현직교사의 평가문항에 대한 자기인식의 차이는 어떠한지를 분석하였다. 평가문항 개발에 대한 자기인식 검사 도구는 수학 평가문항 개발에 대한 교사의 신념과 수학 평가문항 개발에 대한 교사의 자기평가로 구성되었다. 예비교사는 사범대학 재학생들을 대상으로, 현직교사는 중 고등학교에 재직교사를 대상으로 수학과 평가문항 개발에 대한 자기인식 검사를 실시하였다. 수학교사의 평가문항 개발에 대한 자기인식 검사를 위해 총 310명의 중등 예비교사와 현직교사의 응답결과를 분석하였다. The purpose of this study is to investigate expertise of mathematic teachers in development of designing assessment items, derived from development of assessing tools, which is a part of assessing competence of mathematic teachers. Analysis was made upon the difference between Pre-service and In-service teachers in terms of self-perception on assessment items. The assessing references of self-perception on developing in designing assessment items consist of followings: one's Beliefs and Self-Rating in designing assessment items. This investigation on self-perception was carried out by both pre-service teachers who are currently enrolled students in college and in-service teachers who are currently incumbent in secondary schools. This analysis based on 310 teachers' answers on self-perception of designing assessment items, both in- and preservice.