대학수학능력시험 수학(수리) 영역 변천사

전영주,Jeon, Young Ju 한국수학사학회 2013 Journal for history of mathematics Vol.26 No.2

본 연구는 대학수학능력시험 수리(수학) 영역의 개념 및 성격을 살펴보고, 수리(수학) 영역의 20년 변천 과정을 도입기(1994~1996학년도), 조정기(1997~2004학년도), 발전기(2005~2011학년도), 전환기(2012학년도 이후)로 구분하여 시기별 변천 과정을 고찰한 후, 향후 수학 영역의 과제를 제시하였다. This study is the analysis of the concepts and the characteristics of the mathematics section of the College Scholastic Ability Test. The study starts with division of the history of the College Scholastic Ability Test into four periods. These are Introduction Period(school year 1994-1996), Adjustment Period(school year 1997-2004), Development Period(school year 2005-2011) and Conversion Period(up to present since school year 2012). The periodical division of the Mathematics section is considered as identical with that of the College Scholastic Ability Test. So we investigate the characteristics of the Mathematics section through the periodical classification. This study also proposes some tasks for the future Mathematics section of the College Scholastic Ability Test.

묵경(墨經)에 나타난 중국고대(中國古代)의 수리사상(數理思想)

전영주,Jeon, Young-Ju 한국수학사학회 2012 Journal for history of mathematics Vol.25 No.1

<묵경(墨?)> 에 나타난 초보적인 형식논리와 수학적 개념 등을 살펴보면서 그 속에 내포된 고대 중국인들의 수리사상(數理思想)을 조명해보고, 이를 통해 <묵경(墨?)> 의 수학적 의의와 가치를 알아보고자 한다. We will research the elementary formal logic and mathematical concept represented in Mojing, and focus on the ancient Chinese's mathematical principles implicit in Mojing. Moreover, the mathematical significance and values of Mojing are examined.

신체 치수 측정기술 특허 동향 분석

전영주,소지호,Jeon, Young-Ju,So, Ji-Ho 한국인터넷방송통신학회 2021 한국인터넷방송통신학회 논문지 Vol.21 No.5

인체의 체형정보 중 신체 치수 측정기술은 줄자나 영상 분석을 이용한 체형 측정 방법들이 활용되고 있으나, 간편하면서도 측정 정확도나 재현성이 높은 방법에 대한 수요는 꾸준한 상황이다. 본 논문에서는 신체 치수 측정기술과 관련한 국내외 특허 조사를 수행하여 관련 기술의 개발 동향을 파악하였다. WISDOMAIN DB를 이용하여 한국, 미국, 일본 및 유럽에 공개된 특허를 대상으로 검색하였으며, 대분류, 중분류 기술체계와 소분류의 기술범위를 정의하여 유효 특허를 도출하였다. 도출된 특허에 대해 연도별 특허 동향, 국가별 주요 출원인과 기술 분야 현황을 분석하였다. 신체 치수 측정기술 분야는 한국의 특허출원 비중이 높아 이 분야에서 한국이 특허 출원을 주도하는 것으로 나타났다. 센서형 측정기술 분야의 특허 출원 건수 자체가 많지는 않았지만, 측정 간편성 부분에 장점이 있으므로 관련 기술개발은 체성분 분석 관련 측정 정확도 향상에 기여가 가능할 것으로 판단된다. For the human body shape information, body measurement techniques using a tape measure or image analysis are used. However, there is a demand for a method with high measurement accuracy and reproducibility while being simple. In this paper, domestic and foreign patent research related to body size measurement technology was conducted to identify the development trend of the related technology. WISDOMAIN DB was used to search for patents published in Korea, the United States, Japan, and Europe, and valid patents were derived by defining the technical scope of major and medium classifications and sub-categories. For the derived patents, patent trends by year, major applicants by country, and the status of technological fields were analyzed. In the field of body size measurement technology, the proportion of patent applications filed in Korea is high, indicating that Korea is leading the patent application in this field. Although the number of patent applications in the field of sensor-type measurement technology was not large, it has an advantage in measurement simplicity, so the development of related technology is expected to contribute to the improvement of measurement accuracy related to body composition analysis.

통합 체질진단 시스템 개발 및 반복성 평가

전영주,김장웅,김재욱,배장한,김종열,김근호,Jeon, Young-Ju,Kim, Jang-Woong,Kim, Jae-Uk,Bae, Jang-Han,Kim, Jong-Yeol,Kim, Keun-Ho 사상체질의학회 2012 사상체질의학회지 Vol.24 No.3

Objectives In this study, we developed a mock-up of the system for Sasang Constitutional (SC) diagnosis. This system consists of 5 devices which are the face analyzer, the voice analyzer, the skin analyzer, the pulse analyzer, and the computer-based questionnaire. Our goal is to evaluate the repeatability of the system. Methods Each device is capable of classifying SC types. The classification probability of the integrated system for the SC types was obtained by summing the probability from each device. For evaluating the repeatability of the system, we collected data for 5 subjects, and repeated the measurement three times for each individual. The average and standard deviation were used for calculating the Coefficient of Variation. Results The results showed that the repeatability of the classification probability of the integrated system is about 8%, which implies the system is repeatable. Conclusions To increase usability of this system, it is desirable for the system to offer information on health condition of the user. The integrated constitutional diagnosis system will be upgraded to complement the convenience and to develop the diagnostic algorithm for the user's health condition.

중국의수학교육사

전영주,Jeon, Young-Ju 한국수학사학회 2011 Journal for history of mathematics Vol.24 No.2

중국의 수학교육을 실험시기(제1기, 1949년~1965년), 침체시기(제2기, 1966년~1976년), 수정시기(제3기, 1977년~1999년), 발전시기(제4기, 2000년 이후)로 구분하여 시기별 변천 과정을 고찰하고, 수학교육의 변천 원인 등 몇 가지 특정과 시사점을 도출하였다. This study starts with dividing the history of mathematics education of China into four periods; Experimentation Period(the 1st period, from 1949 to 1965), Stagnancy Period(the 2nd period, from 1966 to 1976). Adjustment Period(the 3rd period, from 1977 to 1999) and Development Period(the 4th period, since 2000 ~) Through periodical classification, several causes and characteristics in mathematics education of each period are identified. And from that, this study draws implications for Korea mathematics education.

중등교사 임용시험 수학교과교육학 기출 문항 분석

전영주,Jeon, Young Ju 한국수학사학회 2014 Journal for history of mathematics Vol.27 No.5

This study aims at what is required knowledge and ability to pre-service math teachers in teacher certificate examination. First, the items are analyzed and among questions of discipline of mathematics education in the last five years are analyzed and classified. Second, an analytical framework suitable for item analysis is examined and the items are analysed by the analytical framework. Finally, helpful implications for discipline of mathematics education assessment can be drawn from this study. It is found that the discipline of mathematics education assessment has the following characteristics: 1) It assesses specific content of the assessment component; 2) It assesses a teacher's theoretical knowledge, practical knowledge and creative knowledge in terms of teaching ability; 3) There are six cognitive assessments; 4) There is an item for difficulty adjustment.

주역(周易)에 나타난 중국고대(中國古代)의 수리사상(數理思想)

전영주,Jeon, Young-Ju 한국수학사학회 2010 Journal for history of mathematics Vol.23 No.2

주역(周易)(Zhou yi) 은 살아 움직이는 우주(宇宙)를 설명한 수리교과서(數理敎科書)라 할 수 있다. 고대중국인(古代中國人)들은 인간(人間)과 우주(宇宙)사이의 상응(相應)을 일찍부터 하도(河圖)와 낙서(洛書), 그리고 팔괘(八卦)의 주역(周易)으로 설명(說明)하고자 하였다. 본고는 이러한 주역(周易)에 나타난 중국고대(中國古代)의 수리사상(數理思想)을 연구(硏究)하고자한다. This Chinese classic on divination can be a textbook for the interpretation of the living cosmos. In ancient the Chinese used to interpret correspondence between human and the cosmos with HADO-NAGSEO and the Eight Trigrams for divination. We will study a mathematical principle of Ancient China in the Chinese classic on divination.

분말 반응법에 의한 YBa₂Cu₃O_7-y 합성과 벌크 초전도체의 제조

전영주,박승연,유병윤,박순동,김찬중,Jeon, Young Ju,Park, Seung Yeon,You, Byung Youn,Park, Soon-Dong,Kim, Chan-Joong 한국분말야금학회 2013 한국분말재료학회지 (KPMI) Vol.20 No.2

$YBa_2Cu_3O_{7-y}$ (Y123) powders for the fabrication of bulk superconductors were synthesized by the powder reaction method using $Y_2O_3$ (99.9% purity), $BaCO_3$ (99.75%) and CuO (99.9%) powders. The raw powders were weighed to the cation ratio of Y:Ba:Cu=1:2:3, mixed and calcined at $880^{\circ}C-930^{\circ}C$ in air with intermediate repeated crushing steps. It was found that the formation of Y123 powder was more sensitive to reaction temperature than reaction time. The calcined Y123 powder and a mixture of (Y123 + 0.25 mole $Y_2O_3$ + 1 wt.% $CeO_2$, $Y_{1.5}Ba_2Cu_3O_x$ (Y1.5)) were used as raw powders for the fabrication of poly-grain or single grain superconductors. The superconducting transition temperature ($T_{c,onset}$) of the sintered Y123 sample was 91 K and the transition width was as large as 11 K, whereas the $T_{c,onset}$ of the melt-grown Y1.5 sample was 90.5 K and the transition width was 3.5 K. The critical current density ($J_c$) at 77 K and 0 T of the sintered Y123 was 700 $A/cm^2$, whereas the $J_c$ of the top-seeded melt growth (TSMG) processed Y1.5 sample was $3.2{\times}10^4\;A/cm^2$. The magnetic flux density (H) at 77 K of the TSMG-processed Y123 and Y1.5 sample showed the 0.53 kG and 2.45 kG, respectively, which are 15% and 71% of the applied magnetic field of 3.5 kG. The high H value of the TSMG-processed Y1.5 sample is attributed to the formation of the larger superconducting grain with fine Y211 dispersion.

조명암의 「남사당」연작시 연구

전영주(Jeon, Young-joo) 국어국문학회 2012 국어국문학 Vol.- No.161

Jo Myung-am"s or, Jo Young-chool wrote the poem and popular-song poem in 1930s and 40s as Japanese colonial era at the same time and defected to North Korea in 1948 at the age of 35. He was a presentative lyricist of Korean popular song changing over from Korean popular song faltered by Japanese popular songs to the fresh lyrics matching Korean sentiment. However, Jo Myung-am has published very meaningful poems in not only poem but song poem. The result of the study was insignificant so it was judged that the poetic value and meaning weren"t properly proved. "NamSaDang" is a presentative poetry. "Namsadangpae poetry" includes 6 kinds such as ⓛNamsadang, ②Sogo chum(tabor dance), ③Sangmu chum, ④Mudeung chum ⑤Boy ⑥Custom etc. Because the poems of Namsadang is one of poems continuing the tradition of few custom poem in Korean poem history, it is considered as a valuable literary property itself. However, these poems were from an unknown source so it has been studied being left out all the while. Therefore, this article was intended to search the literary significance and to reconstitute the poetry of Jo Myung-am omitted analyzing 6 poems as "Namsadangpae" poem written by Jo Myung-am. Based on this study, it was an opportunity to be investigated refreshingly the relationship between custom and modern poem discussed fragmentarily.

EBS 영어 방송 및 콘텐츠 현황 분석

전영주(Jeon Young-Joo) 한국콘텐츠학회 2018 한국콘텐츠학회 종합학술대회 논문집 Vol.2018 No.5