뫼스바우어 분광법과 색도 분석에 의한 고대 고려청자의 발색메카니즘 연구

전아영,노형구,김응수,조우석,김경자,김종영,김진모,김철성,강경인,Jeon, A-Young,No, Hyung-Goo,Kim, Ung-Soo,Cho, Woo-Seok,Kim, Kyung-Ja,Kim, Jong-Young,Kim, Chin-Mo,Kim, Chul-Sung,Kang, Gyung-In 한국세라믹학회 2012 한국세라믹학회지 Vol.49 No.1

In ancient Goryeo celadon, the effect of the chemical composition and ionic state of Fe on the color was evaluated by Mossbauer spectroscopy and Design of Experiment (DOE) analysis. The ancient celadon pieces excavated from the kiln sites in GangJin and Buan areas were analyzed by Mssbauer spectroscopy, chromaticity, and DOE analysis. The color of celadon was found to be mainly determined by that of glaze since variations of $L^*$, $a^*$, and $b^*$ values for the body were much smaller than those for the glaze. As $Fe^{2+}$/$Fe^{3+}$ in glaze increases, $L^*$ value increases, whereas $a^*$/$b^*$ value decreases, which is well consistent with the result on the synthetic glaze. As the amount of titanium increases in the glaze, the $a^*$ and $b^*$ values decrease; on the other hand, the $L^*$ value increases, which is well consistent with the result on the synthetic glaze.

박리화와 재적층법을 통한 K₂La₂Ti₃O₁₀부터 유전성 Bi_4-xLa_xTi₃O₁₂(x~2)의 합성

전아영,고지은,김종영,Jeon, A Young,Ko, Jieun,Kim, Jong-Young 한국결정성장학회 2013 韓國結晶成長學會誌 Vol.23 No.1

본 연구팀에서는 층상형 페로브스카이트 구조를 갖는 Ruddlesden-Popper 구조의 $K_2La_2Ti_3O_{10}$의 박리화를 통해 Aurivillius 구조의 $Bi_{4-x}La_xTi_3O_{12}$(x~2) 페로브스카이트 산화물을 성공적으로 합성하였다. 박리화된 란타늄 티타네이트 나노시트는 BiOCl 나노결정구조와 반응시켜 $Bi_{4-x}La_xTi_3O_{12}$(x~2) 결정을 얻어내었다. 박리화된 나노시트 현탁액은 $K_2La_2Ti_3O_{10}$으로부터 수소화된 $H_2La_2Ti_3O_{10}$의 층간에 에틸아민을 삽입시킴으로써 얻어내었다. 투과전자현미경(TEM) 분석을 통해, 란타늄 티타네이트가 에틸아민에 의해 박리화된 것을 확인할 수 있었다. X-선 회절분석(XRD)을 통해, 박리화된 란타늄 티타네이트와 BiOCl의 재적층과정을 거쳐 $700^{\circ}C$ 이상의 열처리 조건에서 $Bi_{4-x}La_xTi_3O_{12}$(x~2)로 형성된 것을 확인할 수 있었다. We have successfully synthesized $Bi_{4-x}La_xTi_3O_{12}$ (x~2) having Aurivillius-type layered perovskite structure from exfoliated layered perovskite oxide of $K_2La_2Ti_3O_{10}$ with Ruddlesden-Popper structure. The reaction between the exfoliated lanthanum titanate nanosheets and BiOCl nanocrystal resulted in the formation of polycrystalline $Bi_{4-x}La_xTi_3O_{12}$ (x~2) after heating above $700^{\circ}C$. Colloidal suspension of the nanosheets could be obtained by intercalating ethylamine (EA) into the protonated lanthanum titanate, $H_2La_2Ti_3O_{10}$, derived from $K_2La_2Ti_3O_{10}$. Transmission electron microscopic (TEM) analysis show that the exfoliated lanthanium titanate nanosheets have a thickness of a few nano meters. According to X-ray diffraction (XRD) analysis, the exfoliated lanthanium titanate was found to be transformed into $Bi_{4-x}La_xTi_3O_{12}$ (x~2) after restacking with BiOCl and subsequent thermal treatment at > $700^{\circ}C$.

문제중심학습(PBL)에 기초한 유아 인권교육 프로그램 개발 및 효과

전아영(Jeon, A-Young),최미숙(Choi, Mi-Sook) 한국열린유아교육학회 2018 열린유아교육연구 Vol.23 No.4

본 연구는 문제중심학습에 기초한 유아 인권교육 프로그램을 개발하고 그 효과를 검증하는 데 목적이 있다. 이를 위해 문제중심학습과 인권교육에 대한 문헌고찰 및 선행연구 분석을 토대로 문제중심학습에 기초한 유아 인권교육 프로그램의 목적 및 목표를 설정하고 교육 내용을 구성하였다. 교수·학습 방법으로 교수·학습원리, 교수·학습 단계를 구성하였으며 프로그램의 평가 방법을 선정한 후, 현장 적합성에 대한 검토 및 수정·보완을 거쳐 최종 프로그램을 개발하였다. 구성된 프로그램은 만 5세 유아에게 8주간 총 24차시를 적용하였으며, 유아 인권관련태도 검사, 인권행동 검사를 통하여 프로그램의 효과를 검증하였다. 그 결과 본 연구에서 개발한 문제중심학습에 기초한 유아 인권교육 프로그램이 유아의 인권관련 태도, 인권행동 향상에 효과적임을 알 수 있었다. 이에 본 연구에서 개발한 문제중심학습에 기초한 유아 인권교육 프로그램은 유아교육현장에서 유아의 인권 옹호적 태도 및 실천을 돕는 교육활동으로 활용될 수 있는 이론적 근거와 시사점을 제공한다. The present study aims to develop a human rights education program for young children based on problem-based learning and to verify its effectiveness. For this, the study established the purposes and objectives of the human rights education program for young children and the educational contents with the ground on problem-based learning based on the analysis of literature and precedent research. Teaching-learning principles and teaching-learning stages were constructed by teaching-learning methods, and after selecting program evaluation methods, the final program was developed through review, correction, and supplementation for the field suitability. The comprised program was applied to children at the age of 5 for 8 weeks for the total of 24 times, and the effectiveness of the program was verified through the evaluation of children"s human rights-related attitude and behavior. As a result, it was found that the human rights education program for young children based on problem-based learning developed in this study was effective in improving children"s human rights-related attitude and behavior. Thus, the human rights education program for young children based on problem-based learning developed in this study provide the theoretical grounds and implications that can be used as educational activities to support children"s human rights advocating attitude and practice in the field of early childhood education.

유아의 관계적‧외현적 공격성의 성차 및 성격과 리더십의 영향

최미숙(Mi Sook Choi),전아영(A Young Jeon) 한국영유아교원교육학회 2016 유아교육학논집 Vol.20 No.2

본 연구는 유아의 관계적 공격성 및 외현적 공격성의 성차와 이에 대한 성격과 리더십의 영향을 살펴보고자 하였다. 연구대상은 K시 사립유치원 4곳의 만 5세 유아 166명을 대상으로 실시하였다. 수집된 자료는 SPSS WIN 18.0을 이용하여 t-검증, Pearson 적률상관계수, 단계적 회귀분석을 실시하였다. 그 결과 첫째, 관계적 공격성 및 외현적 공격성의 성차는 외현적 공격성에서 남아가 더 높은 것으로 나타났다. 둘째, 관계적 공격성 및 외현적 공격성은 성격과 의미 있는 상관관계를 보였으며 성격의 정서적 안정성, 호감성, 외향성, 성실성은 관계적 공격성을, 호감성, 개방성, 정서적 안정성은 외현적 공격성을 설명하는데 중요한 예측변인으로 나타났다. 셋째, 관계적 공격성 및 외현적 공격성은 유아의 리더십과 의미 있는 상관관계를 보였으며 리더십 중 타인존중, 도전과 자신감은 관계적 공격성과 외현적 공격성을 설명하는데 중요한 예측변인으로 나타났다. The purpose of this study was to investigate young children’s gender differences in relational and overt aggression, and the impacts of personality and leadership on the aggressions. The subjects were 166 5-year-old children at four private kindergartens in K city. For data analysis, t-test, Pearson’s correlation coefficient, and stepwise regression analysis were conducted using the SPSS 18.0 WIN program. The results of the present study are summarized as follows. First, regarding gender differences in relational aggression and overt aggression, boys showed higher levels of overt aggression. Second, relational aggression and overt aggression showed a significant correlation with personality. In particular, emotional stability, agreeableness, extroversion, and sincerity among personality traits were important variables to predict relational aggression, whereas agreeableness, openness, and emotional stability were important variables to predict overt aggression. Third, relational and overt aggression showed a significant correlation with young children’s leadership. In particular, respect for others, challenge and self-confidence were important variables to predict relational aggression and overt aggression.

골프 운동이 중년여성들의 외적스트레스요인과 대사증후군인자에 미치는 영향

전아영(Jeon, A-Young),서영환(Seo, Young-Hwan) 한국체육과학회 2020 한국체육과학회지 Vol.29 No.2

Due to the lack of physical activity of middle-aged women in recent years, stress at home and at work has led to diseases such as obesity and metabolic syndrome. In order to prevent these diseases in advance, golf exercise was carried out to middle-aged women. The change of α-amylase after golf exercise was decreased after the golf exercise, and the interaction effect was shown only between the measurement time*groups. In the factors related to metabolic syndrome after golf exercise, waist circumference was decreased after the golf exercise, and there was an interaction effect only between the measurement time and the group. HDL-C showed increased results before and after golf exercise, and there was an interaction effect between measurement time and measurement time*group. TG decreased after the golf exercise, and there was an interaction effect between the measurement time and the measurement time*group. Fasting blood glucose was decreased after the golf exercise, and there was an interaction effect between the measurement time and the measurement time*group. Systolic blood pressure was decreased after the golf exercise, and there was only an interaction effect between the measurement time groups. Diastolic blood pressure was found to have an interactive effect only at the time of measurement before and after golfing. Taken together, golf exercise has been shown to be effective in reducing stress-induced metabolic syndrome in middle-aged women.

복합운동이 아마추어 골퍼들의 체력과 드라이버 샷 비거리에 미치는 효과

전아영(A-Young Jeon),서영환(Young-Hwan Seo) 한국발육발달학회 2017 한국발육발달학회지 Vol.25 No.1

The purpose of this study was to investigate the effects of combined exercise on driver shot distance and physical fitness in amateur golfers (n = 15). Total 8 weeks of combined exercise (treadmill exercise + core exercise) was performed, and driver shots and physical fitness were measured before and after exercise. The statistical analysis was based on the results obtained by applying the corresponding sample t-test to the pre and post-test differences in the group. First, the distance of the driver shots of the exercise group with combined movement was measured before and after the experiment, and the distance of the amateur golfers was improved and statistically significant difference was shown (p<.001). Second, there was a statistically significant difference in strength, muscle endurance, cardiovascular endurance, flexibility, and empowerment (p<.05, p<.01, p<.001). This result is an effective exercise for amateur golfers because of the improvement of physical fitness and the increase of distance. Therefore, it is recommended that amateur golfers improve their physical fitness and distance by multiplying their movements. In addition, if future studies are conducted by combining motion analysis using video equipment and studies on active oxygen for condition control, It is thought that amateur golfers will be able to present an effective exercise program.

가미영신환의 현미감정 연구

황명석,전아영,박종희,Whang, Myumg-Suk,Jeon, A-Young,Park, Jong-Hee 한국생약학회 2000 생약학회지 Vol.31 No.1

'Ga Mi Yung Sin Whan' is a Chinese patent medicine, which is used for a tachycardia, anemia, amnesia, ecstacy, and so on in Korea. This medicine consists of 12 kinds of powdered crude drugs. For the identification of individual ingredients in such powdery mixtures, microscopic method may advantageously be used as it requires only a small amount of specimens. In this paper, the effectiveness of this method is exemplified by the identification of the ingredients in Ga Mi Yeong Sin Whan which contains 12 powdered crude drug ingredients.

청자 유약 발색메카니즘에 대한 뫼스바우어 분광법에 의한 연구

김종영,노형구,전아영,김응수,조우석,김경자,김진모,김철성,Kim, Jong-Young,No, Hyung-Goo,Jeon, A-Young,Kim, Ung-Soo,Cho, Woo-Seok,Kim, Kyung-Ja,Kim, Chin-Mo,Kim, Chul-Sung 한국세라믹학회 2011 한국세라믹학회지 Vol.48 No.1

Systematic study on relationship between celadon coloring and glaze component was conducted by chromaticity analysis and M$\ddot{o}$ssbauer spectroscopic analysis. The chromaticity ($L^*$, $a^*$, $b^*$ values) and M$\ddot{o}$ssbauer analysis results were correlated to the amount of $Fe_2O_3$, $TiO_2$, MnO, and $P_2O_5$, which are the essential factors influencing celadon coloring. According to chromaticity analysis, celadon glaze color belongs to GY group when the addition of $TiO_2$ was 1.4%, whereas the color belongs to BG group when the addition of $TiO_2$ was 0.1%. For the GY group, the colors change from GY to YR with the decrease of brightness as the addition of $TiO_2$, MnO, and $P_2O_5$ increases. According to M$\ddot{o}$ssbauer analysis results, as the amount of divalent iron ion increases, the $a^*$ and $b^*$ values decrease, on the other hand, $L^*$ value increases. The ratio of divalent iron ion produced in reductive sintering process is found to be 80~95% in this study, which induces the increase of $L^*$ values in celadon glaze.

순환운동프로그램에 참여하는 노인들의 기초체력과 혈액성분에 미치는 영향

손연희(Son, Youn-Hee),전아영(Jeon, A-Young),노재성(Roh, Jae-Sung),서영환(Seo, Young-Hwan) 한국체육과학회 2016 한국체육과학회지 Vol.25 No.5

The main purpose of this study is comparing and analysing the impact of affecting Basic strength and blood composition of 18 elderly women after participating in the circuit program by dividing 18 elderly women into exercise group(9) and control group(9). Through Data processing Win ver. SPSS 22.0 program matching sample t-test was used to investigate difference in two groups(exercise group, control group)and independent sample t-test was used to see the difference between groups(exercise group, control group) Level of significance was established with .05. Then, we come to the following conclusion. First, change of muscular strength, muscle endurance, agility, flexibility in exercise group, showed more significant difference(p<.05, p<.01, p<.001). In control group, there was decrease in muscular strength (left) but showed more significant difference flexibility before experiment in groups showed only significant difference(p<.05). Second, differences verification of blood component in exercise group showed significant differences in TC, HDL-C, LDL-C, TG (p<.01, p<.001) in control group, there wasn"t significant difference. total cholesterol before experiment in groups increased but showed significant difference(p<.05). Triglycerides after experiment increased but showed significant difference(p<.05). Above, factors of Basic strength of old ladies participating in circuit program decreased and improved blood component, in an aging society, factors of basic strength and blood component of the elderly are gradually decreasing. So, one of regular exercises, c ircuit program i s considered exercise program that can lead a healthy life to old age. the Follow-up study by the elected candidates who have disease in old age will be carried out by providing easy exercise ways and preventing other illnesses.

청소년들이 인터넷을 사용하면서 추구하는 심리내적 욕구에 관한 현상학적 연구

정여주(Chung Yeo ju),이아라(Lee A ra),고영삼(Koh Young sam),김한별(Kim Han byul),전아영(Jeon Ah young) 한국열린교육학회 2017 열린교육연구 Vol.25 No.3

본 연구의 목적은 청소년들이 인터넷을 사용하면서 추구하는 심리내적 욕구가 무엇인지 밝히고 그 의 미를 심층적으로 이해하는 데 있다. 이를 위해 9명의 청소년을 대상으로 심층면담을 실시하였으며, 수집 된 자료는 Giorgi의 현상학적 연구방법에 따라 분석하였다. 원자료에서 85개의 중심의미를 추출한 후 다 시 22개의 드러난 주제로 하위범주를 구성하였고, 이를 지속적인 비교와 현상학적인 아이디어로 7개의 본 질적 주제를 도출해내었다. 분석 결과 드러난 본질적 주제는‘관계 형성의 욕구’,‘소속과 인정의 욕 구’,‘자기 확인의 욕구’,‘정보 습득의 욕구’,‘스트레스 해소와 즐거움의 욕구’,‘표현의 욕구’,‘진로 개발의 욕구’이다. 첫째, 관계 형성의 욕구란 현실관계를 유지 ․심화시키기 위해 인터넷을 사용하거나 가상 세계의 익명의 대상과 관계를 형성하는 이점을 취하려는 것이다. 둘째, 소속과 인정의 욕구는 가상세계 속 소모임에 속해 외롭지 않으려는 것과 그들의 칭찬과 관심을 추구하는 것이다. 셋째, 자기 확인의 욕구는 새로운 자기의 성격을 발견하고 성공적인 자기모습을 확인하려는 것이다. 넷째, 정보습득의 욕구는 실생 활, 게임, 진로 및 학업, 시사 영역의 정보를 얻고자 하는 것이다. 다섯째, 스트레스 해소와 즐거움의 욕구 는 인터넷을 하면서 쾌감을 느끼고 현실 속 스트레스를 잊고자 하는 것이다. 여섯째, 표현의 욕구는 긍정 적, 부정적 감정과 생각 및 의견을 표현하려는 것이다. 일곱째, 진로개발의 욕구는 자신의 흥미를 발견하 고 진로분야를 탐색하고 준비해나가기 위해 인터넷을 사용하는 것이다. 이와 같은 본 연구의 결과를 바탕 으로 논의와 연구의 시사점을 제시하였다. The purpose of this study was to examine intrapsychic desire of youth to pursue using the Internet and understand the meaning in depth. For this purpose 9 youths’ experiences were analyzed via Giorgi’s phenomenological method. In addition, 85 factors were drawn from raw data, and 22 sub-categories and 7 essential topics were derived by persistent comparison and phenomenological ideas. The 7 essential topics consist of ‘Desire for relationship’, ‘Desire for affiliation and recognition’, ‘Desire for self- identification’, ‘Desire for information gathering’, ‘Desire for stress reduction and fun’, ‘Desire for expression’, and ‘Desire for career development’. The meanings for each topic are explained as follows. First, desire for relationship is using the Internet for maintaining and intensifying real relationships or taking advantages of relationships in the virtual world. Second, desire for affiliation and recognition means belonging to a small group in the virtual world and pursuing praise and attention from them. Third, desire for self-identification means finding one’s new personality and identifying competent self. Forth, desire for information gathering is to gain knowledge of real life, game, career, study, and news. Sixth, desire for expression is to show positive and negative feelings, opinions and thought. Seventh, desire for career development is to use the Internet for finding their interest and preparing their career area. Based on these results, discussion and suggestions were mentioned.