창의적 자기신념 척도의 개발 및 타당화

박은지(Park, Eunji),최인수(Choe, Insoo) 한국창의력교육학회 2020 창의력교육연구 Vol.20 No.3

본 연구는 자아실현적 창의성 연구의 한 측면으로 창의적 자아에 대한 신념을 확인할 수 있는 창의적 자기신념(Creative self-beliefs) 척도를 개발하고 타당화하는데 목적을 두었다. 이에 Beghetto와 Karwowski(2017)가 제시한 창의적 자기신념에 대한 이론과 대학생들 대상의 개방형 설문조사 자료, 그리고 최인수와 표정민(2014)의 연구에서 제시된 창의적인 사람들의 특성을 바탕으로 창의성의 인지(창의적 자기효능감, 창의적 메타인지, 창의적 자아개념), 동기, 성향을 대표하는 48개의 예비문항을 개발하였다. 그리고 탐색적 요인분석 및 확인적 요인분석, 공인타당도를 확인하여 창의성의 인지 17문항(창의적 자기효능감 5문항, 창의적 메타인지 5문항, 창의적 자아개념 7문항), 동기 3문항, 성향 10문항(리더십 5문항, 개방성 5문항)의 최종 6요인 30문항으로 구성된 척도를 완성하였다. 따라서 본 연구는 이론적으로 제시되었던 창의적 자기신념에 대한 요인구조를 경험적으로 확인함과 동시에 창의적 동기 및 성향적 측면을 포괄하는 창의적 자기신념 척도를 개발하고 타당화하였음에 그 의의를 둔다. The purpose of this study was to develop and validate the creative self-beliefs scale on which beliefs about creative self can be verified, as an aspect of a research on self-actualizing creativity. It, therefore, developed 48 items representing cognition(creative self-efficacy, creative meta-cognition, creative self-concept), motivation and personality of creativity, based on the theory of the creative self-beliefs proposed by Beghetto and Karwowoski(2017), data from open-end questionnaires investigated to university students and the characteristics of creative people suggested by In-Soo Choe and Jungmin Pyo(2014). An exploratory factor analysis and a confirmatory factor analysis were conducted and the criterion-related validity was verified to complete the scale consisting of 6 factors and 30 items: cognition 17 items(creative self-efficacy 5 items, creative meta-cognition 7 items, creative self-concept 7 items), motivation 3 items, personality 10 items(leadership 5 items, openness 5 items) of creativity. This study thus has an implication, in that it empirically verified the factor structure of creative self-beliefs which have been theoretically suggested, developing and validating the creative self-beliefs scale including the aspects of creative motivation and personality.

암롤 시스템 작동에 따른 수소운송용 Skid의 구조안정성 예측

박은지(Eunji Park),최성진(Sungjin Choi),남찬혁(Chanhyuk Nam),김익수(Ik Soo Kim),황재형(Jae Hyeong Hwang) 한국자동차공학회 2020 한국자동차공학회 학술대회 및 전시회 Vol.2020 No.11

Currently, hydrogen energy is attracting attention as an alternative energy source because it is free from pollution and can be used in various fields such as households and construction vehicles. As interest in hydrogen energy increases, government investments and companies’ technology development are actively being made. The technology development related to hydrogen energy in the interior is actively progressing, but the storage and transport efficiency is low. Most of domestic hydrogen energy transportation is carried out in the form of a tube trailer. The tube trailer carries a cartridge consisting of a hydrogen storage container (Bundle) and a skid that supports the storage container, and moves the charging station and production facility. Hydrogen storage containers applied to domestic tube trailers can be compressed and stored at a level of 200 bar. storage and transportation efficiency can be improved if the compressed amount of the storage container is increased to 350 bar level. Since such a tube trailer is transported through an actual road with a hydrogen storage container compressed at high pressure, the structural stability of the skid supporting the hydrogen storage container must be secured. In this paper, we presented a hydrogen trailer model that can load and unload cartridges using arm-roll system. The purpose of this study was to predict the structural stability of the skid when a hydrogen storage container with a compression amount of 350 bar and a hydrogen skid were loaded onto a trailer. To predict the structural stability of the skid, structural analysis was performed using ABAQUS. The maximum stress value for the rotation angle of the arm roll was predicted.

SUV 차량의 비선형성을 갖는 스테빌라이져바 시스템의 동특성 예측

박은지(Eunji Park),남찬혁(Chanhyuk Nam),최성진(Sungjin Choi),이진승(Jinseung Lee),배상은(Sangeun Bae) 한국자동차공학회 2020 한국자동차공학회 부문종합 학술대회 Vol.2020 No.7

Recently, Consumers demands for handling and ride comfort are increasing, but handling and rride comfort are performance factors that have opposite characteristics. To meet the needs of these consumers, carmakers are actively developing active suspension technology to satisfy two different performance features at the same time. The active suspension system consists mainly of elements such as K&C performance, spring, stabilizer bar and damper, and is being commercialized and developed as a system that allows the overall roll control of the vehicle to enhance handling and ride comfort performance. These systems, however, must be equipped with hydraulic pressure or motors, and are designed to regulate the overall roll stiffness of the vehicle through a separate controller. so they are mainly installed in high-end vehicles due to their complex structure and high price. In this paper, It is purposed a semi-active stabilizer bar model with nonlinear stiffness. This made it possible to improve not only the handling stability but also the ride comfort through nonlinear stiffness curves. It was intended to predict the dynamic performance of a semi-active stabilizer bar through the dynamic analysis. The handling stability was evaluated through J-turn and Double lane change, and the ride comfort was evaluated using ISO8608 road surface provided by ADAMS.

어두운 감성 표현을 위한 한국 대중가요의 음악적 특징연구

박은지(Park-Eunji),이승연(Seny-Lee) 한국콘텐츠학회 2014 한국콘텐츠학회 종합학술대회 논문집 Vol.2014 No.11

사례 분석을 통한 QR 코드의 활용방안 연구

박은지(Eunji Park) 한국항만경제학회 2013 韓國港灣經濟學會誌 Vol.29 No.4

QR 코드는 저장할 수 있는 정보의 양이 1차원 바코드에 비해 매우 크고, 다양한 종류의 정보를 코드화할 수 있다. 또한 고가의 RFID와 비교해 생성비용이 저렴하며 별도의 장비 없이 스마트폰을 활용하여 인식할 수 있다는 장점이 있다. 이러한 장점에도 불구하고, 각종 산업의 판매, 유통, 생산관리, 품질관리 등에 적용되어 온 1차원 바코드나 항만, 물류 등 다양한 산업현장에서 널리 쓰이는 RFID와는 달리, QR 코드는 대부분 일반인 대상의 생활 밀착형 서비스에 머물러 있었다. 현재 광고를 통한 마케팅 영역에서 가장 활발하게 사용되고 있으며 제조, 유통, 물류 분야에서 조금씩 활용 사례가 늘고 있지만 아직은 미약한 수준이어서 체계화된 시스템의 구축이 필요하다. 따라서 본 연구는 QR 코드의 이론적 고찰과 활용사례 분석을 통하여 식자재의 공급사슬관리(SCM)에 QR 코드를 적용하는 방안을 제시하였다. QR 코드를 공급사슬관리에 활용할 경우 데이터의 이동성 확보에 따른 물류 신속성과 정확성을 높일 수 있을 뿐 아니라 물류비용 절감효과 등 효율성 제고에 크게 도움이 될 것으로 기대된다. QR Code can save much more information than ID Bar Code and encode various types of information. As it takes less general cost than high priced RFID, it can be recognized through smart-phone without any special facilities. Despite these strengths, QR Code is just used by general people for their daily life service, while ID Bar Code is applied in all kinds of industry like sales, distribution, production management, quality management and so on. And RFID is also used in many industrial field like harbor and distribution area. The range of QR Code"s usage is getting broad but still restrictive. So it is required to make new organized system. Therefore, this research suggests that Applying QR Code in the SCM. Connecting QR Code with SCM, it secures space for data"s movement And it helps not only rise the speed and accuracy of data flow but also reduce logistical cost.

대학교 1학년생의 인터넷 역사 텍스트 읽기 양상

박은지(Park Eunji),박현숙(Park Hyunsook) 한국역사교육학회 2021 역사교육연구 Vol.- No.39

본 연구에서는 대학교 1학년 학생들의 인터넷 역사 텍스트 읽기 양상을 질적 연구를 통해 고찰하였다. 연구 결과의 역사교육적 논의를 정리하면 다음과 같다. 첫째, 대학교 1학년 학생들의 인터넷 역사 텍스트 읽기 활동에는 연구 참여 이전에 형성된 선행지식이 작용하였다. 따라서 학생들이 원하는 정보의 형태와 내용에 따라 인터넷 역사 텍스트를 선택하기 위해서는 중ㆍ고등학교 교육에서 인터넷 환경 지식과 다양한 형태의 인터넷 역사 텍스트에 대한 경험이 필요할 것이다. 둘째, 연구 참여자들은 인터넷 역사 텍스트의 정보를 분절적으로 인식하고 구체적인 검색목표에 맞추어 인터넷 공간의 파편화된 지식을 탐색하였다. 이는 정보의 출처를 중요하게 여기는 역사학 연구와는 상반된 것으로, 독자 개인의 목표에 따라 재구성·재생산이 자유로운 인터넷 역사 텍스트의 특성을 반영하는 새로운 읽기 방안을 마련할 필요성이 제기된다. 셋째, 연구 참여자들은 인터넷 역사 텍스트의 신뢰도를 ‘대중성’을 기준으로 판단하였다. 인터넷 공간의 특징을 고려하여 대중성을 기준으로 텍스트를 선정하는 것은 합리적이지만, 알고리즘이나 가짜 뉴스 등에 쉽게 휩쓸릴 수 있음을 알고 경계해야 한다. 넷째, 사료 비판의 한 방법인 내용의 교차 검토는 인터넷 공간에서 텍스트들의 내용을 서로 비교하거나 다양한 형태의 텍스트들을 활용하는 방식, 복합적인 감각 자극의 교차를 통해 텍스트 자체의 신뢰도를 판단하는 방식 등 다양한 양상으로 구현되었다. 인터넷이라는 달라진 환경에서 전통적인 사료 비판의 방법이 더 역동적으로 구현될 수 있음을 확인하였다. 최근 역사교육 학계에서 인터넷 텍스트 읽기와 정보 처리 방식에 관심을 가지기 시작한 만큼, 본 연구에서 다루지 못한 후속 연구들이 진행되어 인터넷 역사 텍스트를 활용한 다양한 역사교육의 방안이 모색되기를 기대한다. The results were as follows; First, prior knowledge (or experiences) formed before participating in research influenced the students way of reading the Internet historical texts. Depending on the course of information acquisition, how he/she understood the controversy over the national foundation day of South Korea (subtopic of this study) was different. The prior knowledge of the Internet environment was also modified by experience in acquiring useful information. Therefore, students must be exposed to diverse search engines and various types of Internet historical texts in order for them to obtain useful information and eventually meet their goals. Second, the research participants perceived the information in Internet historical texts in fragments. They then set specific goals for a search and conducted a goal-oriented search to achieve that goal. Although each participant was different in detail, there was a tendency of selecting search terms based on specific and clear goals and choosing texts based on their helpfulness to achieve one s goal. Moreover, as soon as the participants decided the text is unhelpful in achieving the goal of the search, they stopped reading and chose different texts. These characteristics suggest that the traditional historical research method, which considers checking for the reliability and validity of the source as the first step, is not very important in Internet space. This is why it has become important to come up with new ways to ensure reliability. Third, the participants determined the reliability of Internet historical texts based on popularity. The popularity factors are not only the number of views and comments on YouTube videos but also the degree of fame of the press and collective intelligent media (e.g., Wikipedia). However, reliability built up in this way is unconsciously affected by the personalized algorithm system or the predetermined search goals with having the restructuring stage of information in mind. When reading the Internet historical texts, we should always be cautious that even though popularity may be reasonable evidence for reliability there is also a risk of falling into false information (i.e., fake news). Fourth, the cross-checking of the text content (historical source criticism method) was performed in diverse ways in the Internet environment. Each participant tried various approaches: comparing the contents of texts between different Internet historical sources, looking up unfamiliar content and reviewing it, searching for various types of texts for different purposes, and judging the reliability of the Internet historical text itself through the intersection of complex sensory stimuli. In this new text-reading environment that has been changed due to the Internet or more broadly the digital medium, the conventional method of historical source criticism can be implemented more dynamically.

상용차 경량 휠 허브 모듈의 구조적 안정성 평가

박은지(Eunji Park),남찬혁(Chanhyuk Nam),고웅희(Woonghee Ko),함규용(Gyuyong Ham),김성훈(Sunghoon Kim),최성욱(Sungwook Choi),이기주(Kiju Lee) 한국자동차공학회 2019 한국자동차공학회 학술대회 및 전시회 Vol.2019 No.11

With the strengthening of international environmental regulations, fuel economy regulations, and rising prices of energy resources, the development of lightweight materials and components for automobiles to improve fuel efficiency is being actively conducted. Compared to passenger cars, commercial vehicles that have a large load and long-distance operation are also developing technologies related to weight reduction to improve fuel efficiency. There is a growing interest in brake products, which are highly lightweight. Currently, the brake system of a medium-large commercial vehicle is shifting from a drum brake to a disc brake system that can provide braking safety and light weight. In the advanced automotive market in Europe, mass production of lightweight products using technologies such as aluminum hubs and dissimilar materials is being developed through new material application and optimal design technology. However, as the brake is a part directly connected to the safety of the vehicle, securing safety is an important factor in product development. In this paper, a model of a commercial vehicle wheel hub module consisting of three parts is presented for light weight, and the structural stability of the proposed lightweight wheel hub module is evaluated through analysis. In addition, the strain generated by the strain gauge was measured using a commercial brake dynamometer. The accuracy of the analytical model was improved through comparison with the analytical model.

스마트폰 어플리케이션의 구강보건교육 활용 방안을 위한 환자의 인식 및 요구도

박은지(Eunji Park),박인선(Inseon Park),이진민(Jinmin Lee),이용탁(Yongtak Lee),임다이(Dai Lim),조현나(Hyunna Cho),김수진(Sujin Kim),이선미(Sunmi Lee) 대한치과의료관리학회 2014 대한치과의료관리학회지 Vol.2 No.1

Data-Driven Human Behavior and Performance Modeling using Multimodal Datasets

Eunji Park(박은지) 한국방송·미디어공학회 2023 한국방송공학회 학술발표대회 논문집 Vol.2023 No.11

수소 운송 트럭의 암롤 시스템의 구조 해석

박은지(Eunji Park),최성진(Sungjin Choi),남찬혁(Chanhyuk Nam),김익수(Ik Soo Kim),황재형(Jaehyeong Hwang) 한국자동차공학회 2020 한국자동차공학회 부문종합 학술대회 Vol.2020 No.7

Internationally environmental regulations have been tightened due to fossil fuel depletion and environmental pollution, and this has increased interest in hydrogen energy as an alternative energy source. Hydrogen energy can be used in various fields such as general households, construction, and vehicles, but since storage and transportation are expensive, there is a need for technology that can store and transport large amounts of hydrogen energy. Hydrogen transport operates in the form of pipelines and tube trailers. Tube trailer-type transportation methods are mostly used, which are less expensive than pipelines. In order to reduce transportation costs, the development of composite containers and trailers for large capacity transportation is actively underway. In this paper, a tube trailer model with a loading / unloading system in the form of an arm is proposed. The hydrogen supply pressure was designed based on a cartridge containing a type4 large capacity composite hydrogen container with a level of about 350 bar. And we are made to predict the structural stability of the Arm-roll system in the process of loading a vehicle with a cartridge containing a charged hydrogen container using ABAQUS.