무채색 무늬가 포함된 배경색의 파스텔색상에 따른 뇌파반응

이희란,김소영,김기성,홍경희,Lee, Heeran,Kim, Soyoung,Kim, Kiseong,Hong, Kyunghi 한국의류산업학회 2017 한국의류산업학회지 Vol.19 No.5

Recently, consumers' evaluation and purchase of online design has been increasing due to the popularization of designing through personal computers, but there has not been enough studies on consumers' brain wave responses depending on the change of PC monitor's color. Therefore, this study investigated how brain waves changed when different background colors with gray patterns were presented through PC monitors. Six background colors with same tone of slightly low saturation were selected, including ivory, yellow, pink, green, blue and pure white as a base color. The brightness and characteristics of color used were analyzed using the luminance meter and color scales. Brain wave was measured by EEG measurement equipment. Brain wave measurement was carried out with 9 subjects at 6 points: F3, F4, T3, T4, O1, and O2. Stimuli were shown for 15 seconds each and black screens were displayed for 15 seconds between each stimulus. As results, the brain waves at O1 responded sensitively by different background colors, followed by F4 and T4. Brain index such as 'RT', 'RA', 'RG', 'RSA', and 'RAHB' showed significant differences depending on the background color at O1, whereas 'RST' differed at F4. Yellow and blue backgrounds pair was the only stimuli that showed significant differences in six brain indices mentioned. Yellow background had higher value of 'RG' at O1 and higher 'RST' at F4, indicating yellow background enhanced concentration. Blue background activated 'RT', 'RA', 'RSA', 'RAHB' at O1, meaning blue background induced calm and stable state.

예비교사의 인공지능 역량 함양을 위한 STAMP 운영 사례 연구

이희란,박정호 한국창의정보문화학회 2022 창의정보문화연구 Vol.8 No.3

In this study, a STAMP program was developed and applied to learn AI literacy and actually perform AI education in elementary schools in order to cultivate the AI education competency of pre-service teachers. The STAMP program consisted of three stages : preparation-training-practice, and the results of the main research on the analysis of the class journal are as follows. First, the motivation for participation in STAMP program was 'strengthening the professionalism of teacher' and 'self-development through various experiences'. Second, The difficulties during STAMP activities were the use of teaching instruments, lesson preparation, and low skills for encouraging and controlling student participation during class. However, it was found that the participation of STAMP led to a high sense of achievement by experiencing SW/AI competency and developing teaching ability. 본 연구에서는 초등 예비교사들의 AI교육 역량을 함양하기 위해 AI소양을 배우고, 초등 현장에 AI교육을 실제 수행해보는 STAMP프로그램을 개발하고 적용하였다. 프로그램은 준비-연수-실습의 3단계로 구성되었으며 주요 수업 저널에 대한 주요 분석 결과는 다음과 같다. 먼저 STAMP 프로그램의 참여 동기는 ‘교사 전문성 강화’와 ‘다양한 경험을 통한 자기 계발’이었다. 둘째, STAMP 활동 중 어려운 점으로는 교구 사용, 수업 준비, 수업 중 학생 참여 독려 및 통제 기술 등이 기술되었다. 하지만, STAMP 참여를 통해 SW/AI 역량을 기르고, 발전하는 수업 능력을 경험하여 높은 성취감을 갖게 된 것으로 나타났다.

예비 초등 교사 AI 수업 전문성 신장을 위한 프로그램 개발 적용 연구

이희란,박정호 한국창의정보문화학회 2024 창의정보문화연구 Vol.10 No.1

본 연구는 초등 예비교사의 인공지능 수업 전문성을 강화하기 위한 프로그램을 개발하는 데 목적이 있다. 본 프로그램은 경남 소재 교육대학교에 재학 중인 예비교사 24명을 대상으로 2023년 4월부터 2023년 7월까지 개발되고 적용되었다. 참여한 예비교사 24명에게 AI 역량 측정 검사를 실시하여 결과를 분석하였고, 예비교사 3명의 수업 저널을 심층 분석하여 수업 전문성의 변화 양상을 파악하였다. 그 결과, 3회에 걸친 AI 역량 측정 검사의 평균 점수는 통계적으로 유의미한 향상을 보였다. 또한, 예비교사의 수업 저널에서도 프로그램의 단계에 따라 수업 전문성에 긍정적인 변화가 나타남을 확인할 수 있었다. 예비교사의 인공지능 수업 전문성 향상을 위한 본 프로그램의 5단계를 적용한다면 인공지능 역량과 수업 전문성을 신장시키는 유용한 자료로 활용할 것으로 기대되며, 이러한 기대를 확인하기 위한 후속 연구가 이루어질 필요가 있다. The purpose of this study is to develop a program to strengthen the professionalism of artificial intelligence education of elementary pre-service teachers. This program was developed and applied to 24 pre-service teachers attending the University of Education in Gyeongnam from April 2023 to July 2023. AI competency measurement tests were conducted on 24 participating pre-service teachers to analyze the results, and in-depth analysis of journals of three pre-service teachers was conducted to identify changes in teaching professionalism. As a result, the average score of the three AI competency measurement tests showed a statistically significant improvement. In addition, it was confirmed that positive growth in teaching professionalism appeared according to the stage of the program in the journal of the pre-service teacher. If the five stages of this program are applied to improve the artificial intelligence teaching professionalism of pre-service teachers, it is expected to be used as useful data to enhance artificial intelligence capabilities and teaching professionalism, and follow-up studies are needed to confirm these expectations.

캐릭터 인형용 밀착커버 패턴개발 프로세스의 가이드라인

이희란,Lee, Heeran 한국의류산업학회 2017 한국의류산업학회지 Vol.19 No.5

The industry of character toys is increasing and new characters are constantly being developed. However, the development of 2D cover patterns for toys is time-consuming due to frequent pattern modifications made through trial and error. Studies are now underway to obtain 2D clothing patterns from 3D body data, however, little research has been done on 2D pattern of character toys. This study suggests efficient guidelines to develop 2D cover patterns with a reasonable accuracy and processing time. Two 3D models of a dog and rabbit were used to develop 2D cover patterns. Independent variables of this study are set as 3 levels of triangle area (small, medium, and large) that influence the efficacy of 3D and 2D pattern development. The determination of the appropriate triangular area was based on the area and shape change of the 2D pattern. A medium or large triangle area was shown to be suitable for a character dog with a smooth curved surface. However, the appropriate triangle area was small if the characteristics of the curved surface are complicated as in the case of rabbit. The head of a dog (a double-curved surface) and the curved forepaw of a rabbit (a triangular area) should be small when the characteristics of the curved surface (such as the hind leg of a rabbit having a large convex surface and a small surface area) are complicated. Grouping by 3D surface characteristics could be a suitable guideline for the triangle area selection.

학령전 아동의 대인동사 습득에 관한 종단연구

이희란,이승복 한국자폐학회 2011 자폐성 장애연구 Vol.11 No.1

본 연구에서는 학령전 아동의 대인동사 표현을 종단적으로 살펴보았으며, 언어발달 수준과의 상관을 분석하고자 하였다. 3;4세-6;4세 5명 아동의 1년 간의 자발적 산출 자료에서 경험-자극 동사, 주체-객체 동사, 주체-유발체 분류에 의한 대인동사의 전체 산출빈도를 총 5명 아동의 종단적 관찰자료에서 분석하였다. 연구 결과, 관찰 대상 아동의 연령이 높아짐에 따라 대인동사의 표현 빈도는 증가하였으며, 세 가지 대인동사의 유형별 산출빈도를 비교한 결과, 분석대상 아동 모두에게서 경험-자극 동사 표현이 가장 많았고, 그 다음 주체-객체와 주체-유발체 동사 순이었다. 언어발달 지표로서의 내포문과 대인동사 산출 간의 상관분석에서는, 전반적으로 높은 상관이 있었다. 이러한 결과를 통해 한국 아동의 대인동사의 습득 과정에서 의미론적 요인과 통사론적 요인이 모두 작용하고 있으며, 대인동사가 학령전 아동의 언어와 인지의 발달에 중요한 지표가 될 수 있음을 논의할 수 있었다. Implicit causality has traditionally been measured in language production tasks for adult and children in relation to interpersonal verbs. The present study was designed to examine the acquisition of interpersonal verbs of Korean children. Following Rudolphn & Foestering’s(1997) and Park(2009), Korean interpersonal verbs classified into 3 types: agent-patient, agent-evocator, experience-stimulus. The frequency distribution of the interpersonal verbs was investigated in longitudinal language data from 5 children. The data of 5 children were transcribed from video recordings recorded in natural production situations from the age of 3;4 to 6;4 at the child’s home with their mother. The results were as follows: First, the numbers of interpersonal verbs increased rapidly especially between age 4-5. Second, children produced more experience-stimulus verbs than other types of interpersonal verbs. Children produced also experience-stimulus type(ie, like, envy, honor) as state verbs more than other type verbs. The Korean children in age between 3-4 orderly learn to from the simple verb form(state verb) to complicated form(action verb). Agent-evocator verbs also produced more than agent-patient verbs because of syntactic role as subject. This study is special in that it followed longitudinally the trajectory of interpersonal verb acquisition in Korean.

물리적 섬유감별방법에 대한 중학교 의복재료 단원 탐구활동지 개발

이희란 한국가정과교육학회 2016 한국가정과교육학회지 Vol.28 No.3

The purpose of this study is to develop an inquiry sheet for the contents of the clothing curriculum of home economics in middle schools using a physical fiber Identification method to increase students’ interests in and understanding of clothing materials. Therefore, a physical fiber Identification method suitable to middle school students was developed in actual classrooms and the effects were analyzed. As a result, the physical fiber identification method was developed to distinguish between wool and acrylic knits; moreover, the identification method between silk and polyester fiber was studied. And then the inquiry sheet using fiber identification method was also developed. When interests in learning, attitudes of acceptance toward learning, and learning achievements of the experimental group (used the inquiry sheet) and the control group (did not use the inquiry sheet) were compared, the experimental group scored higher in every category, all of which were meaningful differences. Thus, this study demonstrated that the developed fiber differentiation method and inquiry sheet improved self-directed learning as well as learners’ understanding of clothing materials by enabling the application the knowledge to the learners’ realities. 본 연구의 목적은 중학교 기술・가정교과 의복재료 단원에서 실물 교육자료집을 좀 더 적극적으로 활용하여 의복재료에 대한 학습자의 흥미와 이해를 높이고자 물리적 섬유감별방법이 들어간 탐구활동지를 개발하는데 있다. 이를 위해 중학교 2학년 수준에 적합한물리적 섬유감별 방법을 개발하였으며, 이를 실제 수업에 적용하고 그 효과를 분석하였다. 연구 결과 양모와 아크릴, 견과 폴리에스터를 비교하는 물리적 섬유감별방법을 개발하였으며, 이를 활용하여 탐구활동지를 개발하였다. 탐구활동지를 수업에 활용한 실험 집단과 사용하지 않은 통제 집단의 학습흥미도, 학습수용태도, 학업성취도를 비교・분석한 결과, 탐구활동지를 사용한 실험집단이 통제집단보다 모두 높은 점수를 보였으며, 유의미한 차이가 있음을 알 수 있었다. 따라서 본 연구를 통해 제작된 섬유감별방법과 탐구활동지는 의복재료에 대한 학습자의 이해를 촉진시켜줄 뿐 아니라, 의복재료에 대한 정보를 학습자에게 제공함으로써 학습자가 실생활에적용할 수 있을 뿐 아니라 학습자의 자기 주도적 학습을 촉진할 수 있는 것으로 생각된다.

밀착의 피트성을 위한 3D 레플리카의 조합방법

이희란,홍경희 한국의류학회 2004 한국의류학회 학술대회논문집 Vol.2004 No.-

제품의 신장특성을 고려한 네오프렌 소재의 3D 라이프자켓 설계

이희란,김소영,홍경희,Lee, Heeran,Kim, Soyoung,Hong, Kyounghi 한국섬유공학회 2016 한국섬유공학회지 Vol.53 No.3

As people spend more time on water leisure activities, the importance of safe and comfortable life jackets that fit the wearer is being emphasized. If a life jacket is designed using neoprene, which lacks elasticity, the coverage ratio may be low considering consumer size; therefore, various sizes of life jackets should be produced to fit the human body to maintain comfort and function. In this research, the method of designing a comfortable life jacket with an extended extension ratio and optimal grading rule was investigated to minimize the size category. In addition, Ziegert and Keil's method was modified and applied to investigate the stretch characteristics of thick neoprene and double jersey materials and those of the end product. According to the observed extension value of neoprene and double jersey, they were allocated the patterns of a life jacket to cover wider ranges of human body sizes. The results showed that extension properties of materials and products measured using Ziegert and Keil's experimental condition matched satisfactorily to the actual wear condition of the product made of stretch fabric. Grading rules were suggested according to the extension properties of the life jacket and clothing pressure as well as the Size Korea database.

유아용 언어력 검사의 타당도 연구

이희란,이유미,이승복,김민정 한국자폐학회 2012 자폐성 장애연구 Vol.12 No.1

The purpose of this study was to examine the validity of the proposed Screening Test of Early Language Development(STELD) in Korean children(age 1;6~3;11). STELD is the screening test composed of the vocabulary checklist and emergent literacy list. The STELD and Sequenced Language Scale for Infants(SELSI) were applied to 37 normal children who were divided into four age groups. The correlation analysis between the two tests were performed for the concurrent validity. Significantly high correlations were obtained between the two tests(STELD and SELSI). It was suggested that the STELD is a valid tool for measuring the children in early stage of language development. 본 연구에서는 18개월부터 36개월 유아의 표현어휘력과 읽기준비도를 측정하기 위한 ‘유아용 언어력검사’(가칭)의 개발을 목적으로 검사가 갖는 공인타당도를 평가하고자 하였다. 이를 위하여 1;6-3;11세 아동 총 37명을 대상으로 ‘유아용 언어력 검사’와 국내에서 이미 개발되어 사용되고 있는 ‘영․유아 언어발달 검사(SELSI, 김영태 외, 2003)의 수용언어와 표현언어 검사를 토대로 두 검사 간 공인타당도를 살펴보았다. 그 결과 첫째, 공인타당도 분석을 위하여 실시한 유아용 언어력 검사의 어휘력 검사와 SELSI 간의 상관계수는 .87로 유의수준 .001에서 통계적으로 유의미한 것으로 나타났다. 둘째, 유아용 언어력 검사의 읽기준비도 검사와 SELSI 간 상관계수 역시 .52로 통계적으로 유의미하였다. 본 연구를 통하여 유아용 언어력 검사를 어휘력과 읽기 준비도를 평가하는 타당도를 갖춘 간편 검사로 제안할 수 있었다.

패션 제품 공유서비스에 대한 소비자 인식과 이용 실태

이희란,이옥경,이예진 대한인간공학회 2022 大韓人間工學會誌 Vol.41 No.6

Objective: This study aims to provide data that can be used when expanding existing shared services and building new shared services as a basic analysis for vitalization of shared services. Background: In the fashion industry, the necessity and revitalization of shared services were raised to solve the problems that occurred as fast fashion became popular. However, research on the specific usage status of domestic fashion sharing service sites is still lacking. Method: Survey was conducted for 367 adults between the age group of 20 and 40. Descriptive statistical analysis and frequency analysis were made using SPSS 24.0. Results: This study found that males experienced sharing service more than females, and workers who directly contact customers are more likely to use sharing service. Further, people who spend more on purchasing clothing and more interested in clothing were likely to use sharing service. Most of those who experienced sharing service used it one to four times. They hoped the price to fall down below 30,000 won. Respondents who knew sharing service but did not experience it said to be aware of shared products and sharing service websites, but they did not use them due to rental and return inconveniences, concerns over product damage and loss, high price, and unsanitary conditions. Conclusion: It was confirmed that the domestic fashion product sharing service is not yet active due to low frequency of use. As a marketing strategy for shared services, it seems necessary to recognize the reasonableness and appropriateness regarding cost, focus on workers who have high contact with others, and create differentiated advertisements according to gender. Application: This study is meaningful for it provides data that can be used in the expansion of existing shared services and establishment of new shared services as a basic investigation.