• Information Systems Review
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• v.7 no.2
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• pp.101-115
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• 2005

IT companies make a lot of effort to share and utilize the experiences of their members and transform them into organizational knowledge as a competitive core. However they face a dilemma in that they have to spend time and financial resources to perform activities around knowledge management for the long-term gains, while carrying at field-work for making short-term profits. As an initial attempt to tackle this managerial problem, this paper tries to investigate the mechanism of knowledge management in a small IT company in Korea with a synthetic view-point using system dynamics simulation model. It depicts the dynamic behaviors of knowledge management and presents some findings of political leverage. Although this model has to be further replenished, the scheme for the dynamism of knowledge management and the findings presented in the paper could be useful for the decision makers, especially of knowledge-intensive organizations.

• Proceedings of the Korea Water Resources Association Conference
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• 2006.05a
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• pp.209-213
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• 2006

청계천이 복원되었다. 서울시에 의하여 지난 2003년 7월부터 시작된 복원공사가 2005년 10월 준공되었다. 원래부터 청계천은 인공의 하천이었다. 조선왕조 520년의 기틀을 다지면서, 도성에 있는 자연하천을 직강화하고 양안에 석축을 쌓아 개천으로 만들었던 것이다. 하천에 인위적인 요소를 더한 것은 전적으로 홍수의 피해를 줄이기 위해서였다. 조선왕조실록에는 태종부터 헌종까지 도성에서 발생한 큰 홍수기록이 10건 소개되어 있다. 특히, 순조 32년(1832)과 헌종 12년(1846)의 피해가 컸었다. 순조 32년 6월부터 7월초까지 비가 오지 않은 날이 없다고 하였으며, 도성내 5부의 민가가 파괴된 것은 3,166호였고 죽은 자는 64명이었다. 헌종 12년 9월에도 큰 피해가 있었는데, 5부에 무너진 민가가 3,900여호나 되었다. 4대문 안의 서울은 북악산과 남산으로부터 가파르게 흐른 물이 고이기 쉬운 저지대를 형성하고 있기 때문에 침수 피해가 자주 발생하였다. 개국 초기에 여러차례의 홍수피해를 당한 후에, 태종의 본격적인 하천정비 사업은 세종 때에 완성되어 오늘날 청계천의 기본 모습을 갖추게 되었다. 임진왜란이후 개천은 상류에서 쓸려내여온 토사가 쌓여 하천으로서의 구실을 다하지 못하였다. 영조 때에는 매립된 토사로 인하여 하천 바닥이 높아졌고, 양안의 도로와 거의 같은 높이가 되었다고도 한다. 이에 영조는 대대적인 준설 사업을 펼쳤고 조선이 폐망할 때까지 주기적으로 준설을 하였다. 준설만을 한 것은 아니었다. 세종은 측우기의 발명과 함께 한강과 개천의 수위를 측정할 수 있도록 수표(水標)를 제작하였고, 역대 왕들은 큰 비가 오면 강우량과 함께 하천의 수위를 점검하였었다. 청계천을 중심으로 자연의 거친 손길에 대응하여 안정된 사회를 만들고자 조선의 왕들과 관리 그리고 백성들은 많은 노력을 기울였다. 본 고에서는 이러한 선조들의 발자취를 따라서 그 흔적들을 소개하고자 한다.없는 토양들이 있었는데 반해 남계통을 비롯한 학곡통, 회곡통, 백산통, 상주통, 석천통, 예산통 등 7개의 토양은 3kPa에서도 약간의 물의 이동이 있었다. 이는 모암이 화강 편마암인 관계로 토양 내에 물의 이동에 영향을 미치는 자갈의 함량이 높았기 때문일 것으로 생각되고 추후의 연구에서는 이 부분에 대한 내용도 검토되어야 할 것이다. 또한, 1kPa에서 물의 이동은 삼각통에서 35.21 cm/day로 이동 속도가 가장 컸으며 그 뒤로 예산통, 화봉통, 학곡통, 백산통 등이 토양에서 빠른 속도로 이동하였다. 가천통이나 석천통 및 우곡통은 1kPa에서의 이동 속도가 아주 느린 토양으로 판단되었다. 또한, 포화되지 않은 상태인 1kPa에서 물의 이동 속도를 VGM 모형에 의해 예측된 값과 측정된 값으로 비교하였을 때 불포화 수리 전도도가 예측되지 않은 토양(석천통, 지곡통, 풍천통)이 존재하여 불포화 수리 전도도 특성평가에 대한 VGM 모형의 적용성에 문제를 보였다. 이는 결과적으로 논이라는 영농형태가 존재하는 우리나라에서 토양의 수리적 특성해석을 위한 VGM 모형의 적용성에 한계가 있을 것으로 판단되었다.4일간의 기상변화가 자발성 기흉 발생에 영향을 미친다고 추론할 수 있었다. 향후 본 연구에서 추론된 기상변화와 기흉 발생과의 인과관계를 확인하고 좀 더 구체화하기 위한 연구가 필요할 것이다.게 이루어질 수 있을 것으로 기대된다.는 초과수익률이 상승하지만, 이후로는 감소하므로, 반전거래전략을 활용하는 경우 주식투자기간은 24개월이하의 중단기가 적합함을 발견하였다. 이상의 행태적 측면과 투자성과측면의 실증결과를 통하여 한국주식시장에 있어서 시장수익률을 평균적으로 초과할 수 있는 거래전략은 존재하므로 이러한 전략을 개발 및 활용할 수 있으며, 특히, 한국주식시장에 적합한 거래전략은 반전거래전략이고, 이 전략의 유용성은 투자자가 설정한 투자기간보다 더욱 긴 분석기간의 주식가격정보에 의하여 최대한

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.1
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• pp.379-388
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• 2018

This study aims to analyze the causes of conflict between street performing subjects and identify methods to induce their collaboration in promoting a creative city. This study proposes preventive mechanisms after identifying potential problems in performances on the streets of Jeju, which aims to become "the island of culture and art". To this aim, the type and relationship between the subjects of conflict, characters of conflict, solutions, extent and role of tolerance, responses of the subjects, and type of conflict management employed were examined and analyzed. We employed an in-depth interview method involving cases of conflict occurring during street performances in Jeju. were categorized into 6 types. First is conflict resulting from the lack of facilities. Second is conflict caused by non-designated performance venues. Third is conflict due to exclusive ambiance. Fourth is conflict resulting from direct engagement by neighboring residents. Fifth is conflict between residents and police during performances. Sixth is conflict by lack of definite relationship with relevant institutes. To systematically resolve these conflicts, we propose the following management methods: (1) behavioral approach of pretraining through a registration system; (2) establishment of busking zones and allocation after registration; (3) training of facilitators to manage street performances and extended roles; (4) establishment of standards for street performances through the systematic approach of ordinance; (5) training to secure tolerance of residents; and (6) simplification of deliberation process by building a collaborative system among institutes.

• Journal of the Korea Convergence Society
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• v.8 no.11
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• pp.353-361
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• 2017

The purpose of this study is to provide basic data to confirm the necessity and effectiveness of the memory school by investigating the perception of users and caregivers about the services and programs provided by the memory school, a social welfare institution for the elderly with minor dementia. For this purpose, 363 students and students in Daegu City were surveyed about the satisfaction and attitude of using memory school. As a result of the analysis, it was found that the use of the memory school is very helpful to the users, and at the same time, it is very meaningful for the decrease of the caregiver burden of the caregiver. Thus, it can be seen that the memory school has the effect of appropriately matching the installation purpose of the facility. In particular, it was found that the degree of satisfaction with the program level, type of service, and future sustainability of the memory school exceeded 90%. Therefore, this study aims to provide policy implications for the social welfare response for the elderly with mild dementia and for the basic data on the memory school for this purpose.

• Information Systems Review
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• v.12 no.2
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• pp.47-74
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• 2010

This study presents two dimensional views of IT-use behaviors. It examines public employee's IT-use behavior as manifested in two ways: acceptance on IT, utilization on IT. This study investigates levels of employee's the acceptance and utilization on IT in the Korean Central Government(ministry and agency) and analyses factors affecting public employee's the acceptance and utilization on task-related IT in the public sector. This study tries to examine the variables affecting the acceptance and utilization on IT; especially, the influences of such variables as leadership, task-related communication with people, task motivation, IT usability and ease of uses, task understanding in the context of Korean Central Government. Based on a questionnaire survey in Korean Central Government(8 ministries, 5 agencies) that have implemented Government Knowledge Management System(GKMS), 311 valid instruments were received and analyzed using various statistics and structural equation model(SEM). And this study will adopt try to delineate pre and intervening conditions for public employee's the acceptance and utilization. According to the results of interviews and SEM analysis suggests that the influence of task-understanding, organizational communication, IS usability were statistically significant in the acceptance and utilization on IT. And it is also hoped that the path-analytic model suggested in this study helps reveal the causal chains between the acceptance and the utilization. Especially, task-understanding proves to be important in encouraging public employee's the acceptance and utilization. This result illustrates why task-understanding people are the key to utilize the task-related IT in public organization.

• Proceedings of the Korea Water Resources Association Conference
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• 2011.05a
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• pp.419-419
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• 2011

이상호우, 사막화, 빙하융해, 생태계 먹이사슬 변화, 이상기온 등 기후변화의 행태는 지구 곳곳에서 다양하게 발발되고 있으며 그로인해 발생되는 인적 물적 피해가 심각하다. 1996년 집중호우에 의한 연천댐체 파괴, 2002년 8월의 낙동강 유역 장기홍수, 2002년 태풍 루사 및 2003년 태풍 매미 등 국내에서는 기후변화 중에서도 주로 이상호우로 인해 발생하는 피해가 많았으며 이들은 주기성이나 특성을 갖지 않아 예측이 어려운 관계로 망양보뢰 식의 후처리에 급급한 실정이었다. 최근 기후변화에 따른 지역별 홍수량, 가뭄량 등에 관한 연구가 가속화되고 있으며, 이와 더불어 해당 기후모델 발현 시 기존 구조물에 미치는 영향에 대한 연구도 필수적이다. 나아가 기존 구조물 뿐 아니라 새로 시공되는 구조물의 설계에서 기후변화에 대한 안정성을 위해 추가적으로 포함해야 할 요소가 있는지에 대한 연구도 필요하다. 본 연구에서는 가상 기후모델에 대해 그 모델이 예측하는 홍수량이 실제 발현되었을 경우를 가정하여, 기존 수공구조물의 안정성에 미치는 영향을 살펴보고 영향인자의 민감도를 분석하고자 한다. 대상 수공구조물은 붕괴 시 영향력이 큰 정도를 기준으로 필댐, 콘크리트차수벽형석괴댐(CFRD), 콘크리트중력식댐, 제방으로 그 범주를 제한 하였으며 대상유역은 한강으로 가정하였다. 구조물의 안정성 검토방법은 각 구조물의 종류에 따라 상이하다. 흙이 주 재료인 제방과 필댐의 경우, 침투(Piping)와 비탈면(Sliding)에 대한 안정성 평가가 이루어지며 CFRD는 댐체와 벽체로 나누어 안정성평가를 하며 댐체 안정성 평가방법은 필댐과 유사하다. 본 연구에서는 하천설계기준(2009)과 댐설계기준(2005)에 따라 각 구조물의 기준안전율을 책정하였으며 점착력, 내부마찰각, 단위중량 등의 물성치는 해당 지역의 토질특성에 따라 여러 문헌을 참고하여 설정하였고 이를 SEEP/W, SLOPE/W 프로그램을 이용하여 구조해석을 실시하였다. 콘크리트중력식댐은 활동, 전도, 지지력에 대해 각각 안정성을 평가하며 MIDAS와 ABAQUS 프로그램을 병행하여 해석하였다. 민감도(Sensitivity)란 안정성에 영향을 미치는 설계인자들의 변화에 따라 안정성이 어떻게 변화하는 지를 말한다. 기후변화에 의한 수공구조물 설계인자 민감도 연구를 통해 기존 설계과정 또는 안정성 검토 시 해당인자의 기여도를 높이거나 새로운 설계인자를 추가하여 미래 상황에 대한 구조물의 위험 정도를 과거대비 상세히 예측할 수 있으며 나아가 적절한 대응 방안 제시에 기여하여 기후변화에 따른 피해를 감소할 수 있을 것이라고 생각된다.

• Current Research on Agriculture and Life Sciences
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• v.31 no.4
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• pp.286-294
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• 2013

Increasing concern for the health, well-being, and income of the people has expectedly brought continuous increase in the industrial value of medicinal plants in recent years as these are also used in foods and cosmetics. However, Korea's increased import of these products from China due to the FTA contract causes negative effects on its industrial value. In this regard, various measures for medicinal crop seed development and production, organization and expansion of circulation and forest land use deregulation are needed to promote the agricultural food industry including medicinal plants. As a measure, first, a database of medicinal plants should be built that can help to promote the national medicinal industry and the seed management system. Second, agricultural productivity should be enhanced via the development and supply of varieties of high quality medicinal plants. Third, there should be a good practice of the system maintenance for the production and supply of medicinal crop seeds. Fourth, production and distribution system of medicinal plants should be established by standardization of high quality seeds. Nowadays, the consumption pattern of medicinal crops is changing from direct ingestion to cosmetics, drugs, and food and this is expected to increase continuously. Consequently, the increased production of medicinal crops will support the development policy and the institutional improvement in response to this trend of the positive change of industrialization.

• Journal of the Society of Disaster Information
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• v.14 no.3
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• pp.288-295
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• 2018

Purpose: The paper aims to compare the effectiveness of the two types of transport demand management measures, namely pull measures and push measures. Method: Case studies of two metropolitan areas in the developing world assess the extent to which increases in fuel prices can contribute to reducing automobile use and increasing the public transport use and the potential of urban rail transit to cause mode shift from automobiles. Within the case studies, a stated response survey of current car users has been conducted for Cairo and an on-line survey of rail transit users in Algiers. Results: There was a major proportion of car drivers who intend to switch to public transport, depending on the range of fuel prices in Cairo and a considerable proportion of rail users who have switched from automobiles resulting in a measurable reduction in CO2 emissions in Algiers. Conclusion: Investments in urban rail can be highly effective where there are demands for better public transport, but this type of pull measures can be much more effective if combined with push measures which significantly raise driving costs.

• Journal of the Korean Society for Library and Information Science
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• v.56 no.4
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• pp.239-267
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• 2022

In this study, the adolescents' perception of the Information Search Process(ISP); their anxiety and the need for intervention during the process were investigated based on Kuhlthau's ISP model, and the relationship among the factors was analyzed with structural equations. In addition, the effectiveness of scaffolding strategy to the experimental group during the class was verified. The main findings are as follows. First, as a result of exploring the anxiety felt by learners and the need for intervention in the information search process, it was found that the presentation stage had a significant effect on the anxiety, and the collection, presentation, and assessment stages had significant effects on the need for intervention. Second, as a result of controlling each variable to investigate the anxiety felt by learners and necessity of intervention in the information search process, it was confirmed that among the demographic variables, the difference between the first graders and the second ones was significant; and the difference in the metropolitan area was more significant than that in the Gangwon province. Third, as a result of paired t-test and covariance analysis on the control group and the experimental group, it was confirmed that the anxiety and need for intervention of the experimental group were statistically significantly reduced. The significance of this study lies in the point that it presents a practical basis for applying scaffolding strategies appropriate to information search process in the field of education.

• Knowledge Management Research
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• v.23 no.2
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• pp.277-299
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• 2022

The massive card transaction data generated in the tourism industry has become an important resource that implies tourist consumption behaviors and patterns. Based on the transaction data, developing a smart service system becomes one of major goals in both tourism businesses and knowledge management system developer communities. However, the lack of rating scores, which is the basis of traditional recommendation techniques, makes it hard for system designers to evaluate a learning process. In addition, other auxiliary factors such as temporal, spatial, and demographic information are needed to increase the performance of a recommendation system; but, gathering those are not easy in the card transaction context. In this paper, we introduce CTDDTR, a novel approach using card transaction data to recommend tourism services. It consists of two main components: i) Temporal preference Embedding (TE) represents tourist groups and services into vectors through Doc2Vec. And ii) Deep tourism Recommendation (DR) integrates the vectors and the auxiliary factors from a tourism RDF (resource description framework) through MLP (multi-layer perceptron) to provide services to tourist groups. In addition, we adopt RFM analysis from the field of knowledge management to generate explicit feedback (i.e., rating scores) used in the DR part. To evaluate CTDDTR, the card transactions data that happened over eight years on Jeju island is used. Experimental results demonstrate that the proposed method is more positive in effectiveness and efficacies.