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예비영유아교사의 창의·인성 함양을 위한 강좌 개발을 위한 인식 및 요구도 조사
김래은,안미영,Kim, Rae-Eun,Ahn, Mi-Young 중소기업융합학회 2019 융합정보논문지 Vol.9 No.8
본 연구의 목적은 예비영유아교사의 창의 인성 함양을 위한 강좌 개발에 대한 인식 및 요구도를 조사하고자 하였다. 연구대상은 유아교육과에 재학 중인 4학년 161명을 대상으로 하였다. 연구도구는 '창의 인성 함양을 위한 강좌에 대한 인식' 3문항과 '창의 인성 함양을 위한 강좌 개발에 대한 요구도' 7문항에 대한 설문지를 구성하였고, 자료분석은 기술통계를 통해 빈도와 백분율을 산출하였다. 연구결과, 첫째, 대부분의 예비교사들은 창의 인성 함양을 위한 강좌의 중요성을 높게 인식하였고, '창의 인성 강좌의 개발과 적용'의 지원을 중요하다고 보았으며, 창의 인성 함양을 위한 강좌가 효과가 있다고 인식하였다. 둘째, 절반 이상의 예비교사들은 창의 인성 함양을 위한 강좌를 수강하겠다고 하였고, 2과목, '1학기 3시간 10주'가 가장 적절하며, '창의성 교육요소 중 성향적 요소'를 많이 요구하였다. 또한, 그들은 '다양한 분야의 융합형 수업'을 많이 요구하였으며, '영화와 음악'의 교수매체가 가장 적절하며, '포트폴리오 평가'를 많이 요구하였다. The purpose of this study was to investigate the perception and needs on development of lecture to promote creative personality of pre-service teachers. The subjects were 161 students in 4th grade in early childhood education department. The questionnaire was composed of 3 items of 'recognition of creativity personality lecture' and 7 items of 'demand of development for creativity personality lecture'. The data was analyzed frequency and percentage by descriptive statistics. In the results, first, most of pre-service teachers recognized the importance on development of creativity personality lecture, and support of 'development and application of creativity personality lecture'. They recognized that creativity personality lecture was effective. Second, more than half of them responded that they would take creativity personality lecture, and this lecture was most appropriate 2 courses and 3 hours 10 weeks per semester. They demanded a lot of propensity element among creativity education elements, convergence classes in various fields, teaching medium for 'movie and music', and 'portfolio evaluation'.
배선용 차단기(MCCB) 구동용 전자석 조작기(EMFA) 설계
김래은(Rae-Eun Kim),강종호(Jong-Ho Kang),곽상엽(Sang-Yeop Kwak),정현교(Hyun-Kyo Jung) 대한전기학회 2008 대한전기학회 학술대회 논문집 Vol.2008 No.4
Recent years have witnessed that the Korean government prompts the 'Power IT' enterprise to combine electric power industry with information technology (IT). Especially, in a move to shore up the distribution automation system, the necessity for remote control of molded case circuit breaker (MCCB) is getting more and more important. In this paper, we aimed to propose a remote-controlled MCCB of which the driving device is substituted to electrical equipment for mechanical parts. Driving device of MCCB was designed with the Electromagnetic Force driving Actuator (EMFA). Electromagnetic force and dynamic characteristics of the designed EMFA are analyzed using 2-D finite element method (FEM).
김래은(Kim Rae-Eun),서정무(Seo Jung-Moo),유세현(Rhyu Se-Hyun),정인성(In-Soung Jung) 대한전기학회 2016 대한전기학회 학술대회 논문집 Vol.2016 No.3
로봇 관절에 사용되는 전동기는 정밀한 구동 성능이 요구되기 때문에 소음과 진동에 매우 민감하다. 또한 제한된 밀폐 공간 안에서 지속적인 동작이 요구되므로 전동기의 출력밀도를 높이는 설계가 수반되어야 한다. 본 논문에서는 소음, 진동의 주 요인인 코깅토크를 저감시키고 출력밀도를 향상시킬 수 있는 축방향 자속 영구자석 전동기의 설계 기법에 대해 기술하였다.
김래은(Rae-Eun Kim),곽상엽(Sang-Yeop Kwak),정현교(Hyun-Kyo Jung) 대한전기학회 2009 전기학회논문지 Vol.58 No.7
In this paper, an electromagnetic force driving actuator (EMFA) and three-link mechanism are proposed as a driving mechanism and connection device for low voltage air circuit breaker (ACB). As the result of dynamic characteristic analysis, the actuator and link mechanism are designed from the simulation and manufactured. The magneitc field of the EMFA is analyzed using the finite element method (FEM). The dynamic characteristic analysis with calculation of the circuit equation and kinetical equation is performed by the time difference method (TDM). Also, the result of the analysis is verified through the experiment of the fabrication model. In this paper, the EMFA size is smaller than the actuator for high voltage circuit breaker. Thus, the dynamic characteristic is analyzed with end-winding inductance that is calculated by the same method which is applied on the circle type end-winding of motors. The designed model for 1600 ampere-frame ACB and the three-link mechanism for connecting contact part with actuating part are manufactured. It is confirmed that the three-link mechanism is possible for improving the circuit breaker efficiency and reducing the size of the EMFA. It is proved that the improved 2-D analysis is more accurate than established method.
현장 적용 유아과학교육 수업이 예비유아교사의 과학 교수방법 신념 및 과학 교수태도에 미치는 영향
김래은(Rae Eun Kim),장문정(Mun Jeong Jang),송민서(Min Seo Song) 한국보육지원학회 2019 한국보육지원학회지 Vol.15 No.4
Objective: The purpose of this study was to analyze the influence of early childhood science education instruction through the implementation of science teaching methods and science teaching attitudes of preschool teachers. Methods: This study was conducted on 52 female students in the early childhood education department of Early Childhood Science Education at G university inGyeongbuk province. The data collected in this study were analyzed through reliability analysis, carbon scanners verification, and homogeneity verification; ANCOVA was used to verify the effectiveness of the program. Results: First, the results showed that the post-test belief of science teaching methods of the experimental group were significantly different than that of the control group. Second, the results showed that the post-test scores of science teaching attitudes of the experimental group were significantly higher than that of the control group. Conclusion/Implications: This study suggests that there were positive influences of early childhood science education instruction through the field practice on the belief of science teaching methods and science teaching attitudes of preschool teachers.
무가선 저상트램용 전폐형 견인전동기 개발 (Development of Totally Enclosed Traction Motor for Low Floor Tram)
김래은(Rae-Eun Kim),김정철(Jung-Chul Kim),김봉철(Bong-Chul Kim),박영호(Yeong-Ho Park),한정수(Jeong-Soo Han) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.5
One of the rolling stocks, low floor tram is recognized as the important alternative to improve traffic and environmental problems. There are many advantages of tram transportation system. It has, especially, low construction costs and easy accessibility. Trams operate with vehicles on roadways. The bogie configuration including traction motor of tramcar is different from that of conventional electric trains because tram has lower floor than train. In these reasons, the traction motors of tramcar are exposed to dusts, water and so on. Therefore, motors are designed by totally enclosed type. In this paper, we explain the design and test of totally enclosed traction motor for tramcar. Characteristic tests and temperature-rising tests were carried out in order to predict the performance of motor and the maximum temperature of coil.