• Journal of the Korea Society for Simulation
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• v.31 no.3
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• pp.23-34
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• 2022

Due to the characteristics of the railway system, a fleet consists of multiple railway vehicles, and a project contract is made by supplying multiple fleets to the customer. If the project fails to meet the due date, the manufacturer must compensate for the delay to the customer. In this paper, we analyze the operation strategies of the railway vehicle manufacturing factory using simulation, in which the layout adopts the concept of the flow lines, and when shortages of parts are considered. If there is a shortage of parts, the subsequent assembly process cannot proceed due to the nature of the assembly process. Thus, in order to overcome this problem, three strategies for performing assembly work are presented when the events of shortages are occurred. We also compare the strategies with respect to reduce the total cost which includes labor costs and compensation costs for delay.

• Proceedings of the Korea Information Processing Society Conference
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• 2000.10a
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• pp.481-484
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• 2000

본 논문에서는 현 교육의 문제점을 해결하고 학생들 개개인의 특기.적성을 살릴 수 있는 특별활동 프로그램에 있어 기존의 방식인 손으로 직접 작업을 하던 특별활동 부서 배정 방식을 향후 교육환경의 변화 추세에 맞추어 학교 안에서 이루어지는 교육활동을, 시간적 공간적 제약을 벗어나 자유로운 공간에서 학생 임의로 특별활동 부서를 신청, 자동 배정할 수 있도록 PHP 와 MySQL을 이용하여 시스템을 구축함으로써, 학생들에게는 정보화 교육의 극대화를 꾀하였고, 교사에게는 조직 편성 운영의 시간과 경비를 줄임으로서 교수-학습의 질을 향상시킬 수 있는 방향을 제시한다.

• Proceedings of the KAIS Fall Conference
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• 2011.12a
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• pp.3-6
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• 2011

재즈의 가장 중심적 인물인 마일즈 데이비스의 'Bitches Brew'는 일반적으로 70년대 이후 현대 음악의 뿌리로 언급된다. 즉, �� 음악과 재즈가 합쳐진 퓨전음악이 시작으로 보는 것인데, 이 연구에서는 단지 시대적 흐름에 따라 형성된 악기 편성과 연주 방식에 프리재즈의 영향이 더해지면서 탄생한 것으로 본다. 수많은 예술적 표현 가운데 새로움에 대한 갈망과 형식에 대한 반감은 문학에서도 포스트-모더니즘적 작품들로 나타나게 되는데, 그 표현 방식에서의 주제의식이 마일즈 데이비스의 'Bitches Brew'의 그것과 상당히 흡사하다. 존 바스의 주제의식과 마일즈 데이비스의 기존의 양식을 다르게 보는 시각을 비교, 분석하여 재즈의 포스트모더니즘을 유추하여 본다.

• Journal of the Korean Society for Library and Information Science
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• v.54 no.2
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• pp.435-455
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• 2020

The purpose of this study is to examine the publication, composition, method of composition, and acceptance patterns of JujaDaejeon anthologies edited by Joseon scholars in the Joseon dynasty. When a large amount of JujaDaejeon was published in the 16^th century, anthologies of JujajaDaejeon was compiled, published and learned as a way to understand it. A total of 13 kinds of JujajaDaejeon anthologies were published, including six kinds in the early Joseon period and seven kinds in the late Joseon period. And the composition of main anthologies showed a trend that was supplemented by Jeong Gyeong-se's Jumunjakhae from Lee Hwang's Jujaseojeolyo, and aggregated into Song Si-yeol's Jeoljaktongpyeon(boyu). JujaDaejeon consists of total 3,645 works except for poems. Among them, 1,734 works were selected by 13 anthologies. The theme of a work with a high cumulative number of selections is the virtue and attitude of the king, policy proposals, the appointment of talent, the duty of subjects, criteria for evaluating historical figures, opposition to harmony with Jin and territorial restoration, and academic discussions. This study is expected to be meaningful in the field of the research on the acceptance of the foreign books and acceptance of the Zhu Xi's works in the Joseon dynasty.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2017.06a
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• pp.180-181
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• 2017

본 논문에서는 CATV 셋톱박스를 통해 공통경보프로토콜 기반의 재난정보를 송출하는 프로토콜을 구현하고 실험한 내용을 기술한다. 현재, 지상파 방송사, 종합편성 방송사 및 보도전문 방송사는 법적으로 재난방송 의무를 가지고 있다. 이들 방송사는 주기적인 폴링방식을 이용하여 통합재난관리시스템으로부터 재난정보를 수신하고 있다. 재난정보 전달은 피해의 최소화, 대응의 신속화를 보장하기 위해 즉시적인 전달(Instantaneous Delivery)'이 무엇보다 중요하다. 따라서, 제안하는 재난정보송출 방식은 재난정보표현을 위한 표준방식인 공통경보프로토콜을 이용하여, 재난정보 발생 시 방송사에게 자동으로 통보될 수 있는 프로토콜을 구현하여 재난정보전달의 신속성을 보장할 수 있다.

• Journal of the Korea Society for Simulation
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• v.27 no.3
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• pp.117-129
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• 2018

In this paper we will discuss two different layout concepts which can be applied to rail-vehicle assembly factory. The existing system is based on the traditional flow line, and the suggested system is based on the fixed position layout. The main factors which affect on the system performances are the variation of process time, shortage rate of part and the shortage period. Simulation experiments indicate that the fixed position layout is better with respect to the throughput, mean flow time per vehicle and the mean flow time per fleet. Furthermore, the fixed position layout is more robust than the flow line because performance measures are insensitive to the variations of factors.

• The Journal of Society for e-Business Studies
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• v.16 no.4
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• pp.139-154
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• 2011

Recently Internet keyword search service providers tends to use CPC advertizement method rather than CPM method. However researches how much the CPC method is beneficial to advertisers than CPM method in certain perspectives are insufficient and not performed systematically. So this paper tries to do comparative analysis about the two methods by analyzing the real transactional DB data from an advertizement agency. Due to the difficulties of direct comparison between the two methods because of their different expose positions on the Web and different types of attributes in DB, we did some preprocessing step for the transactional data. From the result of analysis, the click rate of CPC is higher than CPM by 1.3% and the unit cost for the CPC per one click is lower than CPM method by 51 Won. It shows the CPC method is more effective than CPM method for advertizement from the point of advertizement effectiveness (CTR) and advertizement cost (CPC). We hope this research would give useful information to advertisers and marketing managers in making advertizement strategy, marketing decision and budgeting.

• The Journal of the Korea Contents Association
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• v.17 no.7
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• pp.416-424
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• 2017

The purpose of this study is to analyze the effects of learning motivation on interaction in online collaborative learning. The study subjects are 79 university students who take courses in teaching. Learning motivations measured the intrinsic goal orientation, extrinsic goal orientation, tasks value, control of learning beliefs, test anxiety, self-efficacy, goal orientation by MSLQ. Next, the level of interaction was measured by online collaborative tasks. The group for online cooperation tasks consisted of four to five people and random assignment. The level of interaction was used frequency and score that quantitative Value assess. The collected data were analysed using multiple regression analysis(stepwise). As a result, self-efficacy and extrinsic goal orientation, tasks value, mastery goal orientation were positive effect on frequency and score. next, test anxiety and performance avoid goal orientation were negative effect on frequency and score.

• Journal of the Korea institute for structural maintenance and inspection
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• v.15 no.4
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• pp.146-154
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• 2011

Recently, the paradigm of social infrastructure investment has been changed from new construction to maintenance and management. As a consequence, the management and maintenance system of existing highway facilities needed an innovation involving the concept of asset management. This paper discusses the new facility management system suitable to local highway agencies. The new system incorporates asset management concept so that it can analyze the network level facility management solution and it can also improve the budget efficiency for local government. This paper also presents systematic method to integrate various facilities for management system.

• 한국사회복지학회:학술대회논문집
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• 1998.10a
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• pp.288-302
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• 1998

이 글에서는 우리나라 기업들의 사회복지활동에 대한 기부행위를 분석하였다. 222개의 조사대상기업들 중 37%인 83개 기업이 기업 외부의 사회복지활동에 대해 다양한 형태로 기부행위를 하고 있었다. 일반적으로 매출액이 많은 기업이 사회복지활동에 기부하는 금액도 많았으며, 평균 기부금액의 규모는 10억4천6백만원 정도이다. 이는 조사대상 기업의 평균매출액의 0.06%에 해당한다. 기업 사회복지활동 중 가장 지적빈도가 높은 사업부문은 저소득층 청소년을 위한 장학금지급사업이었으며, 기부금의 규모면에서는 사회복지기관 지원이 가장 큰 비중을 차지하였다. 사회복지활동의 방법에 있어서는 기업이 직접 사업을 실시하는 경우가 가장 많았으며, 다음으로는 기존의 사회복지기관이나 단체를 지원하는 방식이었다. 기부금의 지급형태에 있어서는 현금지급이 가장 많았으며, 사회복지활동을 위한 재원으로는 매출액이나 순이익의 일정비율을 예산으로 편성하는 경우가 가장 많았다.