http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
유치원교사와 예비유아교사의 전통문화에 대한 인식의 차이
최기영,우수경 한국교원대학교 교육연구원 2014 敎員敎育 Vol.30 No.3
본 연구는 유치원교사와 예비유아교사의 전통문화에 대한 인식의 차이를 분석하고, 전통문화에 대한 지식과 기술의 관계를 알아보는 데 목적이 있다. 연구대상은 전국 공・사립유치원에 재직하고 있는 유치원교사 385명과 충청남・북도에 소재한 4개 4년제 대학교 유아교육과 재학생 376명이었다. 연구도구는 최기영, 서윤희, 박혜진(2011)이 개발한 전통문화에 대한 인식 검사 도구를 일부 수정한 것이며, 연구문제에 따라 t-검증과 상관관계 분석을 하였다. 연구결과 첫째, 유치원교사와 예비유아교사의 전통문화에 대한 인식에 차이가 나타나 전체와 하위범주 모두에서 유치원교사의 인식이 예비유아교사의 인식보다 높았다. 인식의 차이가 큰 하위범주는 전통놀이문화와 전통생활문화의 순이었으며, 인식의 차이가 가장 작은 하위범주는 전통역사문화인 것으로 나타났다. 둘째, 유치원교사와 예비유아교사 모두 전통문화에 대한 지식과 기술 간의 상관을 보였으며, 유치원교사가 보인 전통문화에 대한 지식과 기술 간 상관계수가 예비유아교사의 상관계수에 비하여 높은 것으로 나타났다. This study explores the difference between kindergarten teachers' and pre-service early childhood teachers' perception on traditional culture and investigates the correlation between their knowledge and skill of traditional culture. The subjects of this study were 385 public or private kindergarten teachers across the country and 376 pre-service early childhood teachers in Chungbuk province. Perception on traditional culture were measured by questionnaires constructed by Choi et al. (2011). To analyze the data t-test and Pearson's correlation were used. Results were as follows: First, there were significant differences in the perception on traditional cultures. Kindergarten teachers' perception on traditional cultures were higher than pre-service early childhood teachers'. Second, the positive relations were shown between knowledge and skill of traditional culture in both groups of kindergarten teachers and pre-service early childhood teachers. Kindergarten teachers' relations between knowledge and skill of traditional culture were higher than pre-service early childhood teachers'.
High and uniform critical current density for large-size YBa_2Cu_3O_(7−δ) single crystals
최기영,I.S. Jo,S.-C. Han,Y.-H. Han,T.-H. Sung,M.H. Jung,G.S. Park,이성익 한국물리학회 2011 Current Applied Physics Vol.11 No.4
A top seed melt growth method was adapted to grow a 4 × 4 × 1.5 cm^3 YBa_2Cu_3O_(7−δ) single crystal. We cut this single crystal into five different parts and investigated the critical current density while applying a magnetic field perpendicular to the CuO_2 plane. The information extracted from five different spots showed no significant J_c difference except at the center and the corners. The measured J_c, on the order of 10^6 A/cm^2 for H = 0 at 5 K, was remarkably high, which indicated that this large crystal could be very useful for large-scale applications such as superconducting bearings or fly-wheel systems.
최기영,Choi, Ki-Young Korea Crystallographic Association 2006 韓國結晶學會誌 Vol.17 No.2
[ $cis-[Co(13-aneN_4)(N_3)_2]Cl{\cdot}H_2O$ ] (1) (13-ane$N_4$ = 1,4,7,10-tetraazacyclotridecane) 착물(錯物)을 합성(合成)하고 구조(構造)를 규명(糾明)하였다. 이 착물(錯物)은 단사정계(單斜晶系), 공간군(空間群) Pbca, a = 7.8282(4) ${\AA}$, b = 14.3197(7) ${\AA}$, c = 29.9021(15) ${\AA}$, V= 3351.9(3) ${\AA}^3$, Z = 8로 결정화(決定化) 되었다. 착물(錯物) 1의 코발트(III)이온은 거대(巨大)고리 리간드의 4개(個)의 질소원자(窒素原子)와 시스 위치에 2개(個)의 azide 리간드가 결합(結合)한 고천(若干) 일그러진 팔면체(八面體) 구조(構造)를 갖는데, 착물(錯物)의 양이온, 염소(鹽素) 음이온 및 물분자(分子)를 통하여 1차원의 수소결합(水素結合)을 형성(形成)한다. The complex $cis-[Co(13-aneN_4)(N_3)_2]Cl\cdot H_2O$ (1) (13-ane$N_4$ = 1,4,7,10-tetraazacyclotridecane) has been synthesized and structurally characterized by X-ray crystalloaraphy. It crystallizes in the orthorhombic system Pbca, a = 7.8282(4) ${\AA}$, b = 14.3197(7) ${\AA}$, c = 29.9021(15) ${\AA}$, V = 3351.9(3) ${\AA}^3$, Z = 8. The cobalt(III) ion in 1 is coordinated to four nitrogen atoms from the macrocycle and two azide ligands of cis position in a distorted octahedral environment, which forms the 1D polymer through hydrogen bonding contacts involving the cation, chloride anion and solvent water molecules.
임계확산성 수소의 농도측정에 의한 수소유기귀열 (水素誘起龜裂) 의 감수성에 대한 평가
최기영,백광기 대한금속재료학회(대한금속학회) 1987 대한금속·재료학회지 Vol.25 No.4
An evaluation of Hydrogen Induced Cracking (HIC) susceptibility of low alloyed high tensile strength steels with different microstructure were conducted both in a synthetic seawater saturated with H₂S (BP solution) and in an acidified chloride solution saturated with H₂S (NACE solution) at room temperature according to standard test method (NACE TM-02-84). Threshold diffusible hydrogen content (C_(th)) value of each steel was also determined, which was shown to be a consistent indicator in the determination of HIC susceptibility Standard HIC test showed comparatively low reliability due to a wide allowable range of H₂S concentration for the 'saturated condition'(2300-3500ppm), which could be compensated by incorporating C_(th) value. Moreover, the C_(th) values determined from cathodic charging of hydrogen agreed well with those determined from the standard test; the method, therefore, is proposed as an easy, reliable method for measuring HIC susceptibility of steels for sour service.
Synthesis and Crystal Structure of Syn-Anti Carboxylate-Bridged Dinuclear Copper(II) Complex
최기영,Choi, Ki-Young Korea Crystallographic Association 2006 韓國結晶學會誌 Vol.17 No.2
이핵 구리 착물(錯物) {[Cu(pmea)Cl][Cu$(H_2O)_3]}Cl_2\cdot H_2O$ (1) (Hpmea=bis(2-pyridylmethyl)amino-2-ethanoic acid)을 합성(合成)하고 구조(構造)를 규명(糾明)하였다. 이 착물(錯物)은 단사정계(單斜晶系), 공간군(空間群) $P2_1/c$, a=9.0008(6) ${\AA}$, b=28.0171(19) ${\AA}$, c=8.5590(6) ${\AA}$, $\beta$=104.2280(10)$^{\circ}$, V=2092.2(2) ${\AA}^3$, Z=4로 결정화(決定化) 되었다. 착물(錯物) 1의 결정구조(結晶構造)는 대칭(對稱)-반대칭(反對稱) carboxylate 다리로 연결(連結)된 이핵 착물(錯物)로서, 각각(各各) 구리원자의 배위환경(配位環境)은 고천(若千) 일그러진 사각뿔구조(構造)와 고천(若干) 일그러진 사각평면구조(構造)를 갖는다. The dinuclear copper(II) complex {[Cu(pmea)Cl][Cu$(H_2O)_3]}Cl_2{\cdot} H_2O$ (1) (Hpmea=bis(2-pyridvlmethyl)amino-2-ethanoic acid) has been synthesized and characterized. It crystallizes in the monoclinic system $P2_1/c$, a=9.0008(6) ${\AA}$, b=28.0171(19) ${\AA}$, c=8.5590(6) ${\AA}$, $\beta$=104.2280(10)$^{\circ}$, V=2092.2(2) ${\AA}^3$, Z=4. Crystal structure of 1 reveals a syn-anti carboxylate-bridged dinuclear complex, in which the coordination environment around each copper atom exhibits a distorted square-pyramid and a distorted square plane, respectively.
최기영 한국생태유아교육학회 2013 생태유아교육연구 Vol.12 No.3
본 연구는 유아교육에서 전통문화교육을 보다 의미 있게 이행하기 위해서는 전공자들이 우리나라 전통사회의 아동교육을 어떻게 이해하고 있는 가를 파악하는 것이 선행되어야 한다고 보고, 전통사회 아동교육 관련 과목을 수강하는 대학원생들의 경험을 분석하여 그들의 수업 경험과 의미를 탐색하는 것을 목적으로 하였다. 본 연구의 참여자는 충청북도에 소재한 대학교의 유아교육전공 대학원과정에 개설된 「한국전통사회의 아동교육」 수강생 중 저널쓰기에 동참한 석・박사 대학원생 20명이었으며, 수강생들이 1학기 동안 수강과정 경험을 자유롭게 기록한 저널을 분석자료로 하여, 공통된 내용 추출, 범주화 작업, 주제 명명화 과정을 거쳤으며 이를 토대로 내포된 수업 경험의 의미를 해석하여 연구결과를 기술하였다. 본 연구에서 범주화된 내용은 다음과 같다. 첫째, 전통사회 아동교육에 대한 생소함과 새로운 깨달음, 둘째, 전통사회의 양육과 아동교육의 특성 배움, 셋째, 전통문화에 대한 경험 회상과 현대유아교육활동 자원에 대한 인식, 넷째, 전통사회 아동교육의 현대 유아교육과정 적용 가능성 인식으로 정리되었다. The purpose of this study is to identify graduate students' understanding of children's education in traditional Korean society and culture. To achieve this, qualitative analysis was performed in conjunction with the Graduate Students' Journal of Learning Experiences. The sample comprises 20 graduate students who have completed a course in children's education at K. University in South Korea's Chungbuk province. The data were analyzed and categorized according to their implications and then interpreted accordingly. The results of this study were as follows: First the participants were unfamiliar with the trends in children's education. Second, the students acknowledged the significance of child care training programs that encompass both pre and postnatal development. Third, they identified the happiest moments of their childhood and considered how these recollections could serve as an important educational resource. Lastly, the group recognized the rationale of children's education and it's application to curriculum development.
최기영,김진의,Leszek Roszkowski 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.63 No.9
We review the status of axino dark matter. Two hierarchy problems, the strong CP problem andthe gauge hierarchy problem, have led to introducing into particle physics a spontaneously brokenglobal Peccei-Quinn symmetry and a softly broken supersymmetry, respectively. Combining themimplies the presence of not only an axion, but also its scalar component, saxion, and their fermionicpartner, axino. Among these, the axion and the axino are attractive dark matter candidates. Various possibilities for the axino as dark matter are discussed.
Systematic Dynamic Modeling of an Integrated Single-stage Power Converter
최기영,김래영,김용욱,이귀준 대한전기학회 2015 Journal of Electrical Engineering & Technology Vol.10 No.6
This paper proposes a novel systematic modeling approach for an integrated single-stage power converter in order to predict its dynamic characteristics. The basic strategy of the proposed modeling is substituting the internal converters with an equivalent current source, and then deriving the dynamic equations under a standalone operation using the state-space averaging technique. The proposed approach provides an intuitive modeling solution and simplified mathematical process with accurate dynamic prediction. The simulation and experimental results by using an integrated boostflyback converter prototype provide verification consistent with theoretical expectations.