• The Journal of Korean Association of Computer Education
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• v.3 no.1
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• pp.143-150
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• 2000

As the society evolves into information age, new teaching and learning methods are proposed. In this paper, we design and implement an on-line quiz program for the formative evaluation of Distance Computer Education. The computer studies include many difficult concepts and those are hard to learn and the distance learning has the advantage of overcoming time and spatial limitations but it needs learner's strong motivations to study. Also, the formative evaluation may guide teachers and learners to studying course and it is necessary to prevent both users from too much load. Therefore, presenting quiz and solving it may be a better way for the formative evaluation and we design and implement a Quiz Program for the formative evaluation of Distance Computer Education. We believe that our program will improve motivation of students in Distance Computer Education

• Proceedings of the Korea Information Processing Society Conference
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• 2006.05a
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• pp.793-796
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• 2006

우리사회가 정보와 지식을 기반으로 하는 사회로 변화함에 따라 문제해결능력을 기르고 측정하는 논술교육의 중요성이 나날이 증가되어가고 있다. 논술은 문제의식을 가지고 비판적인 사고를 통해 문제에 대한 자신의 의견을 정리해 나가는 것이다. 논술능력 향상을 위해서 무엇보다 중요한 것은 미흡한 점을 보완하여 보다 나은 논술로의 지도를 위한 적절한 교정 및 평가이다. 현재 온라인 논술교육사이트에서 다방면으로 논술교육이 이루어지고 있지만, 첨삭부분에 있어서는 아직까지 미흡한 점이 존재한다. 이에 본 연구에서는 새로운 개념의 웹 기반 논술첨삭지도 시스템을 설계하고 구현하였다. 본 시스템은 글의 내용, 구성, 형식 측면에서 마우스를 이용한 영역선택 방식과 교정기호의 아이콘 삽입방식을 통해 효과적이고 편리하게 첨삭할 수 있는 환경을 제공한다. 또한 첨삭결과 확인은 논술 원문에서 글자형태가 바뀐 영역 표시를 클릭하였을 경우에만 첨삭결과를 확인하도록 구성하여 첨삭 전의 논술 원문을 논술작성자 스스로 퇴고할 수 있도록 하였다. 이는 학생과 교사사이에 원활한 피드백을 형성하도록 하여 주입식 논술교육을 지양하도록 하였다.

• Journal of Internet Computing and Services
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• v.8 no.4
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• pp.137-147
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• 2007

As Web-based online communities are rapidly growing, the agents in social groups need to know their measurable belief of trust for safe andsuccessful interactions. In this paper, we propose a computational model of trust resulting from available feedbacks in online communities. The notion of trust can be defined as an aggregation of consensus given a set of past interactions. The averagetrust of an agent further represents the center of gravity of the distribution of its trustworthiness and untrustworthiness. And then, we precisely describe the relationship between reputation, trust, and averagetrust through a concrete example of their computations. We apply our trust model to online internet settings in order to show how trust mechanisms are involved in a rational decision-making of the agents.

• Proceedings of the Korean Society of Computer Information Conference
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• 2010.07a
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• pp.453-456
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• 2010

이 연구는 완전통합교육을 효과적으로 지원하기 위한 전자멘토링 시스템을 구축 및 사용성을 평가하는데 목적이 있다. 시스템 설계를 위하여 현재 운영되고 있는 국내 외 시스템과 연구들을 분석한 후, 완전통합교육 지원에 적절한 전자멘토링 수행모형을 도출했다. 특히, 설계와 구현에 있어서는 온라인의 수평적 멘토링 구현과 다양한 멘토링 형태의 지원, 상호보완적 관계형성, 그리고 활동에 대한 피드백 제공 등에 역점을 두고 시스템을 구축했다. 개발된 전자멘토링 시스템의 사용성 평가를 위해 운영자 2명, 멘토 5명, 멘티 5명을 선정한 후, '멘토링 지원(인지적 지원, 정서적 지원, 적용가능성)'과 '기술 지원(편의성, 정확성, 심미성)' 등 2가지 영역, 총 10개의 문항을 통해 심층면담을 실시했다. 통합학급 담당교사와 특수학급 담당교사의 사용성 평가 결과, 완전통합교육 지원을 위해 개발된 전자멘토링 시스템은 모든 영역에 걸쳐 상당히 효과적인 것으로 판단할 수 있었다. 향후에는 이 연구결과를 바탕으로 현장에서 장기간 지속적인 적용을 통해 개발된 전자멘토링 시스템의 실질적 효과성을 검증해 보는 연구가 요청된다.

• Proceeding of EDISON Challenge
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• 2013.04a
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• pp.354-359
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• 2013

일반적으로 건축물의 설계시 풍동 실험을 통한 풍환경의 평가를 수행하고 있으며, 이는 환경 영향 평가법에서 정한 건축 사업 시행 시 수반되어야 할 자연환경, 생활환경 그리고 사회경제환경의 영향 평가의 일환으로 실시되고 있다. 그러나, 풍동 실험의 경우 여러 가지 현실적 제약조건으로 설계와 실험의 피드백 (Feedback)이 원활하지 못하며, 특히 대상 건축물이 공장과 같이 대기 오염원이 되는 경우 실험은 더욱 어려운 형편이다. 이에 대한 보완책으로 전산 유체 역학을 이용한 건축물의 풍압 해석에 의한 풍하중 추정이나 인접 지형-지물의 영향을 고려한 건축물 주위의 풍환경 평가가 있다. 전산 모사에 의해 풍동 실험의 미비점을 보완하고, 보다 상세한 정보를 확보함으로써 건축물의 구조적 안전성의 증대와 환경 피해 감소를 기할 수 있다. 그러나 복잡한 지형-지물이나 건축물 주위의 풍환경에 대한 전산 모사는 주로 두 가지의 기술적 어려움을 수반하게 되다. 그 중 하나는 고정 경계면을 이루는 형상의 복잡성으로 인해 기존에 많이 이용하고 있는 Body-fitted 격자계를 이용하는 경우, 격자 생성 과정이 매우 복잡하고 어려울 뿐 만 아니라 생성된 격자가 주로 비정렬 (unstructured) 특성을 갖게 되어 수치해석 과정의 효율을 저하시키는 요인이 되며, 격자의 형상도 수치해석의 수렴성을 저하시키는 예가 많다. 다른 어려움으로 풍환경은 전형적인 난류 유동장으로서 난류의 전산 해석은 아직도 해결하지 못한 부분이 많다는 점이다. 이에 본 논문에서는 복잡한 지형-지물이나 건축물의 풍하중과 풍환경의 전산 모사 기술 확보를 위하여 수행중인 연구의 일환으로 물체 형상의 기하학적 복잡성의 극복을 위한 가상경계법 (Immersed Boundary Method)과 난류 유동장의 물리적 엄밀성을 높이기 위한 다와동 모사 (Large Eddy Simulation)을 이용한 물체 형상과 무관한 유동장 해석 기술 개발에 대하여 다루고자 한다. 먼저 최근에 유동 해석에 이용되는 방법인 가상경계법(IBM)은 물체를 포함한 전체 전산 영역을 직교 좌표계에 의해 이산화하고, 유동장내 존재하는 물체의 표면에서의 점착 조건을 만족시키기 위하여 지배 방정식에 적절한 외력을 추가로 고려하는 방법이다. 본 연구에서는 가상경계법을 이용하여 경계층에 위치한 건물 형상의 각진 물체 주위 사이에 형성되는 공동 내부의 비정상 유속 및 압력에 대한 전산 해석을 수행하고, 풍상측 전면에 형성되는 경계층에 의한 영향을 분석하였다.

• Journal of the Korea Computer Industry Society
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• v.3 no.1
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• pp.45-56
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• 2002

The object of our research is to design and to embody the learning system of numerical concept for the mathematic loaming disabilities. The existing system for the learning disabilities was a simple repeating practice system, repeating the same learning contents to obtain the skill, ignoring the learner's disability situation. This bears a problem that the interest and motivation in the learning media will reduce as the learning goes on. This loaming system offers the learning process of numerical concept by showing an animation file of a real life and offering a concrete mouse manipulating practice environment, so as to maintain the motivation of the learner, giving an instant compensation and feedback. If this system are used in directing the learning disabilities, it will help them to stay motivated and to create a positive teaming attitude by a variety level learning system, supporting suitable speed and learning contents for the learning disabilities individuals.

• The Journal of the Convergence on Culture Technology
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• v.9 no.6
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• pp.49-56
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• 2023

The purpose of this study is to develop convergence major-based learning (CMBL), which selects performance tasks related to local problems at hand and solves them based on convergence major performance, and builds a suitable teaching and learning model. We developed a CMBL class with a team project-type class that finds and solves practical problems in the region to cultivate overall problem-solving capabilities for convergence major competencies. Additionally, for this class, the instructor played a role as a bridgehead to explore and connect the community's sites, and students visited connected institutions in person to identify problems they need based on understanding and empathy for the subjects through field observation and qualitative interviews, and developed a CMBL class teaching and learning model necessary to directly solve them by using their major capabilities to the fullest. Therefore, we intend to present the future-oriented direction of university convergence education required by the community by forming a group of students with various majors to cultivate the ability to solve realistic problems in the community.

• Korean journal of communication and information
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• v.55
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• pp.140-163
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• 2011

This study analyzed the contents of letters-to-the-editor and the characteristics of the letters' writers, featured in three major newspapers, Chosun Ilbo, Dong-a Ilbo and Hankyoreh, in Korea from 1997 to 2009. Additionally, based on whether the letters contained the feedback function or not, it scrutinized the attributes of the letters-to-the-editor. The results indicated that the role of letters-to-the-editor has changed from a space for showing merely personal dissatisfactions or complaints into a space for expressing the reader's opinions about various issues. The study also showed that the proportion of writers who have specialized jobs and are members of civic groups steadily increased. It seems to tell that the quality of the letters was improved accordingly, because they could give in-depth opinions about the matters in which the society were interested. The feedback function of the letters was also gradually more activated for those years, and it could be thought as another evidence supporting the quality improvement of the letters, which were supposed to form the healthful public opinion. However, the writers' residential districts are heavily concentrated on the region surrounding Seoul, the capital of Korea. The study suggested that the newspapers should develop tools to overcome such defects.

• Management & Information Systems Review
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• v.30 no.4
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• pp.45-71
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• 2011

This study aims at reviewing the effect of the non-verbal communication of salespersons at service encounter on customers' non-verbal communication and responses. The previous studies overlooked the correlation between salespersons' non-verbal communication and customers' non-verbal communication at service encounter, although non-verbal communication of salespersons has potentialities evoking customers' non-verbal communication and emotional responses in various ways. If it is a salesperson who a customer first encounters within a shop, the non-verbal communication of salesperson affects his/her non-verbal communication and these non-verbal communication affect his/her emotional responses, and these emotional responses affect his/her behavior. This phenomenon is based on the theory of emotional contagion, mimic, and face feedback. Therefore the non-verbal communication such as greetings, postures and eye-contact manners through the personal interactions between salespersons and customers, can be said to be an antecedent variable which affects the positive responses of customer. As a result of the study, the kinesic of salesperson's non-verbal communication was found to affect customers' non-verbal communication, and customers' non-verbal communication affect emotional responses experienced at service encounter, and customers' positive emotion affect customers' behavior responses. This result provides an opportunity which makes one turn eyes on salespersons' non-verbal communication at sales encounter both practically and scientifically, through introducing salespersons' non-verbal communication as an important factor which can enhance customers' positive responses but has been passed over by the previous studies.

• Journal of Animal Environmental Science
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• v.11 no.3
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• pp.153-160
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• 2005

This study was conducted to determine the effect of floor type of finishing building and increasing market weight of finishing Pigs on Performance, carcass traits and pork quality. Four hundred and forty-four finishing pigs were confined and administered with different floor type(concrete slat and bedded with sawdust) and increasing market weight(110kg to 130kg) of finishing building. The result obtained from this study were summarized as follows; 1. There was no significant difference between the floor type of finishing building in the body weight gain, feed intake and gain per feed. And also increasing market weight of finishing pigs was not affected the performance of finishing pigs. 2. Increasing market weight of finishing pigs affect the carcass yield. The market weight at 130kg showed more amount of each cut of carcass, especially the belly portion was higher, but backfat thickness was not different. 3. Carcass traits did not show any significant difference due to the difference of market weight of finishing pig and floor type of finishing building. 4. There was no significant difference in the chemical compositions and meat color of pork loin between the floor type of finishing building and increasing market weight of finishing pigs.