• Journal of Information Technology Applications and Management
• /
• 제21권3호
• /
• pp.53-64
• /
• 2014

It is important to keep learners' feeling positive during learning to enhance learning performance. According to flow theory,challenge-skill balance is a precondition for flow experience: Learners feel anxiety when the challenge of learning is higher than their ability, feel boredom when the challenge of learning is lower than learners' ability, and engage in flow status when the challenge of learning matches the learners' ability. However, the current empirical study reveals that emotions related to enjoyment may appear when the learners' skill is equal to or higher than the learning challenge. Nevertheless, boredom emotion may appear when learners perceive the courses are difficult but unimportant. These empirical survey results revealed the necessary of rethinking the appearance of boredom and enjoyment emotions in computer education.

• 한국경영과학회:학술대회논문집
• /
• 대한산업공학회/한국경영과학회 1996년도 춘계공동학술대회논문집; 공군사관학교, 청주; 26-27 Apr. 1996
• /
• pp.243-243
• /
• 1996

• 한국경영과학회:학술대회논문집
• /
• 한국경영과학회 1989년도 추계학술발표회 발표논문초록집; 이화여자대학교, 서울; 23 Sep. 1989
• /
• pp.51-51
• /
• 1989

• 한국농공학회:학술대회논문집
• /
• 한국농공학회 2003년도 학술발표논문집
• /
• pp.471-474
• /
• 2003

An attempt was made to evaluate on water supply capability of river management flow of four agricultural dam at the Yongsan River which is required instream flow because of water pollution. As a result, supply capability of agricultural use was sufficient, but supply capability of river management flow was insufficient.

• 한국건설관리학회:학술대회논문집
• /
• 한국건설관리학회 2004년도 제5회 정기학술발표대회 논문집
• /
• pp.423-426
• /
• 2004

공공건설임대주택의 사업비는 국민주택기금, 임대료, 임대보증금, 공사비, 금융비용 등 다양한 수익과 비용이 복합적으로 나타나게 된다. 따라서 공공건설임대주택 사업은 그 특성상 유동성과 재무탄력성에 대한 유용한 정보를 제공해 줄 수 있는 현금흐름예측이 필요하다. 그러나 현금흐름분석은 일부 시행하고 있었으나, 이를 예측 $\cdot$ 관리하고 있는 곳은 전무한 것으로 나타났다. 현금흐름 예측을 위한 일반적인 사항들은 실적자료와 문헌을 통하여 알 수 있으나, 현금흐름 예측의 정확성을 높이기 위한 리스크에 대한 연구는 전무한 실정이었다. 기존의 리스크에 대한 연구는 사업 전체에 대한 연구로 현금흐름과 정확한 상관관계를 알 수 없었다. 따라서 본 연구에서는 수익성 측면에서의 사업성분석 방법으로 현금흐름 예측방법을 제안하고 공공건설임대주택사업의 정확한 현금흐름예측과 관리를 위하여 현금흐름 각 항목에 영향을 미치는 리스크 인자들을 식별 $\cdot$ 분석 하고 그 대응방안을 모색하고자 한다.

• 한국물환경학회지
• /
• 제31권2호
• /
• pp.196-208
• /
• 2015

This study analyzed the characteristics of sewer flow and its water quality, and investigated changes in the characteristics in three areas where the sewer rehabilitation projects have been carried out. In S1 area, the patterns of the flow became regular and the range of the fluctuation decreased after the sewer rehabilitation. The flow and its BOD concentration increased. The infiltration/inflow and exfiltration showed clear distinction before and after the sewer rehabilitation in this area. In S2 area, the patterns and the range of the fluctuation of the flow made no differences before and after the sewer rehabilitation. The flow decreased slightly and its BOD concentration increased considerably after the sewer rehabilitation. Big decrement in stormwater inflow but small in exfiltration appeared in this area. In S3 area, the patterns and the range of the fluctuation of the flow made no differences before and after the sewer rehabilitation. The flow decreased slightly and its BOD concentration increased in a small rate in this area.

• 지식경영연구
• /
• 제13권1호
• /
• pp.13-24
• /
• 2012

Unlike the traditional belief that knowledge flows along the formal reporting procedures, recent social network research has reported the importance of informal social networks which may play a critical role as the real knowledge conduits. In fact, as a complementary approach of utilizing knowledge management systems (KMSs), many firms have focused on managing informal knowledge flow through which to acquire and transfer valuable knowledge in a fast and effective way. In a case of global companies that have newly developed foreign branches or subsidiaries, due to cultural or institutional differences and lack of understanding of knowledge management and its benefits, they often have difficulties in activating knowledge sharing in local branches. In these situations, diagnosing organizational knowledge flow through SNA can be a first step to solve the problems. Therefore, in this paper, I report on the result of case study on a foreign branch of "A" global company by identifying organizational knowledge paths. Based on the results of the diagnosis, some implications and insights for building knowledge management (KM) strategy specified for a newly developed foreign branch will also be discussed.

• 한국의료질향상학회지
• /
• 제7권2호
• /
• pp.244-261
• /
• 2000

Background : In order to cope with changes in the management environment at hospitals, increased interests are drawn in patient foodservice system on Continuous Quality Improvement Activity as the method of approaching a quality food service and effective management. Thus, as a part of this activity, this study was conducted to evaluate job flow improvement that was already performed and the results of that process at the dietetic department of a university hospital, focusing on improving management. Method : On February 15 of 1998. the dietetic department formed a job flow-improvement to decide on the priority of job flow improvement, and prepared specific action strategies and schedule of the priority: after a 5 month process period, job improvement achieved on June 15. 1998. Also, economic achievement of the task was evaluated through labor productivity analysis and cost-benefit analysis. Results : The patient food service system which was managed decentralized at the present hospital was centralized, some steps of the food service process were integrated, and quality of patient food was improved. Also, as a solution of the problems expected when conducting job flow improvement was made on food service equipments and utensils. The result of evaluating the job flow improvement that labor productivity improved by 18.2% compared to before the improvement and the result of the analysis of cost-benefit showed that Benefit-Cost (B/C) ratio was 2.22. showing financial merit on the investment. Conclusions : Continuous Quality Improvement Activity needs to be initiated and conducted in the future in various areas of hospital foodservice system in order to actively adopt to ever changing hospital management environment. In order to achieve this goal, many researches and more efforts need to be put in by people in charge of hospital food service management, and interests and support are needed from hospital policy makers.

• 대한교통학회지
• /
• 제28권4호
• /
• pp.167-175
• /
• 2010

유비쿼터스 통신 및 센서네트워크 기술발전으로, 기존 ITS(Intelligent Transportation System) 환경에서 불가능했던 미시 교통류 정보의 수집 가공과 V2V(Vehicle-to-Vehicle), V2I(Vehicle-to-Infra) 양방 통신환경을 활용한 개별차량 및 차량군 단위의 미세제어가 가능해졌다. 이에, 유비쿼터스 기술진보에 맞춘 진일보된 교통운영기술로서 적정속도 관리 알고리즘을 제시하고 그 알고리즘의 성능과 효과를 평가하였다. 적정속도 관리 알고리즘은, 소통원활 상황에서 과속을 억제하고 개별운전자간 속도 편차를 최소화함을 목표로 하는 과속저속관리와, 교통류가 임계상태에 가까워 졌을 때 혼잡교통류로의 전이를 예방 혹은 최대한 늦추는 것을 목표로 하는 밀도관리로 구성된다. 현재 교통 상용 시뮬레이션 소프트웨어로는 개발차량의 속도를 관리하는 본 연구의 알고리즘 모사와 평가가 불가능하여, COM(Component Object Model) Interface를 통해 VISSIM과 직접 작성한 프로그램 코드를 가지고 시뮬레이션 테스트 베드를 구축하여 이러한 효과평가를 수행하였다. 평가 결과 본 연구에서 제안한 알고리즘에 의해 적정속도를 관리 할 경우, 혼잡이 줄어들고 통행시간도 감소하는 효과를 볼 수 있었다.

• 한국물환경학회지
• /
• 제31권6호
• /
• pp.653-664
• /
• 2015

TPLMS (Total water pollutant load management system) that is the most powerful water-quality protection program have been implemented since 2004. In the implementation of TPLMS, target water-quality and permissible discharged load from each unit watershed can be decided by water-quality modeling. And NPS (Non-point sources) discharge coefficients associated with certain (standard) flow are used on estimation of input data for model. National Institute of Environmental Research (NIER) recommend NPS discharge coefficients as 0.15 (Q₂₇₅) and 0.50 (Q₁₈₅) in common for whole watershed in Korea. But, uniform coefficient is difficult to reflect various NPS characteristics of individual watershed. Monthly NPS discharge coefficients were predicted and estimated using surface flow and water-quality from HSPF watershed model in this study. Those coefficients were plotted in flow duration curve of study area (Palger stream and Geumho C watershed) with monthly average flow. Linear regression analysis was performed about NPS discharge coefficients of BOD, T-N and T-P associated with flow, and R² of regression were distributed in 0.893~0.930 (Palger stream) and 0.939~0.959 (Geumho C). NPS Discharge coefficient through regression can be estimated flexibly according to flow, and be considered characteristics of watershed with watershed model.