• Proceedings of the Korean Society of Computer Information Conference
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• 2018.07a
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• pp.417-418
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• 2018

오늘날 SW 중심사회에서 컴퓨팅 사고력은 꼭 필요한 핵심역량으로 중요성이 강조되고 있으며, 이에 따라 2015 개정 교육과정에서는 소프트웨어(SW) 교육, 정보 교육을 강화하였다. 온라인 채점 시스템은 학생들이 문제해결 소스코드를 제출하면 이를 평가하고, 적절한 피드백을 제공하므로 자기주도적인 문제해결학습 경험과 프로그래밍 스킬을 향상시키는데 도움을 줄 수 있어 사용이 확대되고 있다. 그러나 채점시스템에 탑재된 문제들은 반구조화된 형태로 되어 있어 학생들이 컴퓨팅 사고단계 중 1단계인 문제공식화(추상화) 단계를 충분히 연습하지 못할 가능성이 있다. 본 논문에서는 이를 보완한 문제해결학습 학습모형을 제안하고, 논의한다.

• Proceedings of the Korean Information Science Society Conference
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• 2002.10c
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• pp.379-381
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• 2002

가상메모리를 사용하는 범용 컴퓨터 시스템, 특히 실시간 시스템에서 상대적으로 속도가 느린 자기 디스크로의 스와핑은 해당 시스템의 성능을 저하시키는 핵심적인 요인이다. 본 논문에서 는 일반적 인 가상메모리 시스템의 성능을 향상시키고 실시간 프로세스에 대해 페이지 스와핑 이 발생하여도 수행시간을 보증할 수 있는 방법으로 선택적인 압축방식을 사용한 화장된 플래시 메모리 스와핑 시스템을 제안한다. 그리고 제안하는 시스템을 세부적으로 설계하였으며 해석과 시뮬레이션을 통하여 지 연시간과 공간 활용도를 평가하고 시스템의 특성을 상위 수준에서 DRAM 올 확장한 경우와 비교해 분석 및 고찰하였다. 그 결과 제안하는 시스템은 매 페이지 스와핑 시에 일정한 수행시간을 단축하며 선택적 압축방식과 수정된 버디 시스템을 사용하여 물리적인 플래시 메모리의 공간을 논리적으로 확장함을 검증하였다.

• 한국벤처창업학회:학술대회논문집
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• 2022.04a
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• pp.117-122
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• 2022

최근 국내외 ESG 연구가 활발해지고 있는 가운데, ESG 연구는 급격한 양적 성장을 하고 있음에도 학술지의 질적 수준을 평가할 수 있는 계량적인 논문은 부족한 상태이다. 본 연구는 한국학술지인용색인(KCI)에서 경영학 분야 내의 KCI 인용지수를 활용하여 상위 10개의 학회를 선정하고 이들 간의 ESG 논문 인용빈도와 네트워크 분석을 하였다. 상호 인용빈도를 활용하여 연결망을 작성하고 네트워크 분석 관점에서 ESG 주제에 관한 각 학술지 간 상호인용빈도를 통해 주어진 학술지의 영향력지수(Impact Factor)와 중심성 지수를 기초하여 연구하였다. 이러한 연구를 바탕으로 학술지들이 핵심 문헌을 식별하고 학문 내 지적 구조를 규명하여 경영학 분야의 ESG 연구 동향을 파악하고자 한다. 본 연구는 국내 발간된 경영학 학술지의 ESG에 대한 학술지의 영향력 인용지수를 비교해 보고 나아가 경영학 학술지의 자기 인용 비율을 확인하고 경영학뿐만 아니라 타 학문 분야에서 경영학 관련 학술지에 대한 인용이 이루어질 수 있도록 다학제적 교류와 추가 연구의 필요성을 제기하고자 한다.

• Journal of the Korean Magnetics Society
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• v.14 no.4
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• pp.149-161
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• 2004

The fusion of nano technology and information technology is essential to sustain the present growth rate and to induce new industry in this ever-growing information age. Considering Korean industry whose competitiveness lies heavily on information related technologies, this field will be inevitable for future. Nano materials can be described as novel materials whose size of elemental structure has been engineered at the nanometer scale. Materials in the nanometer size range exhibit fundamentally new behavior, as their size falls below the critical length scale associated with any given property. " Bottom-up' techniques involve manipulating individual atoms and molecules. Bottom-up process usually implies controlled or directed self assembly of atoms and molecules into nano structures. It resembles more closely the processes of biology and chemistry, where atoms and molecules come together to create structures such as crystals or living cells. Nano scale sensors are included in the electronics area since the diverse sensing mechanisms are often housed on a semiconductor substrate and usually give rise to an electronic signal. The application of nano technology to the chemical sensors should allow improvements in functionality such as gas sensing. In this presentation, we will discuss about the nano scale information materials and devices fabricated by using the organic/inorganic nano templates.

• Communications of Mathematical Education
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• v.34 no.4
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• pp.507-523
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• 2020

This study is to establish the items on instructional evaluation based on the teacher's practical knowledge in mathematics educations. Namely, this study deals with the items on how pre-service or in-service teachers reflect and revise their own or peer's class. To accomplish this, first of all the items on instructional evaluation was developed by researchers of this study on the basis of the results of two previous study. One is the literature of Elbaz(1981) and the other is the literature of Hwang(2013). Elbaz(1981) defined the definition of practical knowledge and five sub-domains of the practical knowledge. On the other hand, Hwang(2013) defined the teacher knowledge in mathematics education and four sub-domains of the teacher knowledge. According to these four domains, Hwang(2013) developed the items on the instructional evaluation in mathematics class. From now on, based on these two study, this study was to develop the items on the instructional evaluation involving the practical knowledge. Futhermore, the final and ideal items on the instruction would be established through the reflection and comments of professionals such as mathematics teachers, professors, and researchers.

• Journal of Advanced Marine Engineering and Technology
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• v.35 no.5
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• pp.675-681
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• 2011

In this paper, we dealt with the design and fabrication of a medium pressure ultra-violet (UV) lamp and a magnetic ballast which are main components for ballast water treatment systems (BWTS). To acquire an optimal discharge condition of UV lamp, electrical and optical characteristics depending on the argon gas volume and the amount of mercury were experimentally analyzed. Rated voltage, current and power consumption of a prototype lamp were 490 [V], 8.6 [A] and 4.0 [kW], respectively. UV intensity of the lamp was 15 [%] higher than that of an equivalent lamp which is used in a BWTS. The magnetic ballast was designed in a UI core type through theoretical analysis and simulation. The open voltage and the rated power consumption of the ballast were 920 [V] and 8.5 [kVA] respectively. The disinfection efficacy which is carried out in a BWTS equipped with the UV lamp and magnetic ballast was over 99.99 [%], and this satisfy the IMO regulations.

• The KIPS Transactions:PartB
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• v.14B no.3 s.113
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• pp.163-170
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• 2007

In autonomous navigation of a mobile vehicle or a mobile robot, localization calculated from recognizing its environment is most important factor. Generally, we can determine position and pose of a camera equipped mobile vehicle or mobile robot using INS and GPS but, in this case, we must use enough known ground landmark for accurate localization. hi contrast with homography method to calculate position and pose of a camera by only using the relation of two dimensional feature point between two frames, in this paper, we propose a method to calculate the position and the pose of a camera using relation between the location to predict through perspective transform of 3D feature points obtained by overlaying 3D model with previous frame using GPS and INS input and the location of corresponding feature point calculated using KLT tracking method in current frame. For the purpose of the performance evaluation, we use wireless-controlled vehicle mounted CCD camera, GPS and INS, and performed the test to calculate the location and the rotation angle of the camera with the video sequence stream obtained at 15Hz frame rate.

• The Journal of the Korea Contents Association
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• v.18 no.10
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• pp.631-643
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• 2018

This study is the first ever attempted series paper of one particular TV drama writer, Su-Hyeon Kim, with diversified and systematic scale. Along with the just before study, proving Su-Hyeon Kim's line's conceptual properties as the Bahktin's dialogism, its core of polyphony, this study is to analyze the concrete method of creation through Bahktin's Canivalistic creation component of 'Grotesque Realism' and 'Unofficial Square Language'. With her work of (SBS, 1992), this study verifies its characteristic creation of lines to be the 'Grotesque Realism' components of overturn, destruction, and creation along with 'Unofficial Square Language' components of the masses, material, physical language, and discourse of self-liberation. In this way, this study is on one hand, to overcome the application problem of Bahktin's theory as a separated one, but also to enhance the quality of the study of the writer and the lines. As a result, she has acquired her own distinction of ambivalence by the way of demotion, overturn with masses' material, physical, unofficial square language along with a stronger execution of acquiring self denial, positivity. liberation, and life. Therefore the writer is highly rated for her fierce cognition of language and her artistic spirit. Also, this paper proposes the following study to appraise the impact of the writer's differentiation and artistic spirit on the creation of Korean TV drama, contents industry, and mass media.

• Journal of Digital Convergence
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• v.13 no.2
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• pp.91-103
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• 2015

This research aimed to investigate the benefits of incorporating Problem-Based Learning(PBL) approach in Business English classes in a Korean university. This study focused on student experiences of learning in a PBL environment. The study examined the feasibility of cultivating students' key job competencies, that of their learning achievement and their satisfaction with the PBL approach. Data on student experiences were gathered from questionnaires. The analysis of the data showed, first, that the PBL could cultivate students' key job competencies. Second, the PBL could have a positive effect on students' acquisition of business content knowledge and their English language development. Third, the PBL approach achieved above moderate level of student satisfaction.

• Journal of The Korean Association of Information Education
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• v.23 no.6
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• pp.561-571
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• 2019

Programming education generally includes problem analysis process, automation through algorithms and programming, and generalization process. It is a good software education method for students in improving computing thinking. However, it was found that beginners had difficulties in understanding instruction usage, writing algorithms, and implementing programming. In this study, we developed a game programming education model and curriculum for programming education of pre-service teachers. The 4E model consisted of empathy, exploration, engagement and evaluation. In addition, it is configured to learn game core elements and core command blocks by each stage. To help the pre-service teachers understand the use of various programming blocks, a three-step teaching and learning method was presented, consisting of example learning, self-game creation, and team-based projects. As a result of applying and verifying the curriculum for 15 weeks, it showed significant results in the 4E model and pre-service teachers' perception of block programming competence and the level of computational thinking on the submitted game project results was also high.