• Digital Contents
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• no.4 s.131
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• pp.28-35
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• 2004

지난해 국내 디지털콘텐츠(DC) 기업들은 DC 시장의 빠른 성장에도 불구하고 많은 부침을 겪어야 했다. 엔씨소프트, NHN, 웹젠, 오위즈 등 각 부문 리딩컴퍼니들은 괄목할만한 성장을 거뒀지만 훨씬 많은 기업들은 매출 부진의 늪에 빠져, 수익감소에 허덕여야 했다. 특히 PC게임 및 애니메이션 기업들은 연이은 흥행실패에 따라 아예 사업구조를 전환하는 등 대안 마련에 부심해야 했다. 상장 · 등록된 기업들을 중심으로 DC기업들의 성적표를 살펴보고, 이들의 2004년 행보를 전망해 봤다.

• 한국경영정보학회:학술대회논문집
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• 2007.06a
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• pp.897-904
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• 2007

과거 독립적으로 운영되던 이동통신망과 유선인터넷망이 유무선 통합 서비스의 확대로 상호간의 트래픽이 교환되고 있고 기존의 유선 콘텐츠와 연계된 다양한 서비스들이 등장하고 있다. 현재 이동망과 유선망의 데이터망 간의 트래픽양이 많지 않지만 향후 망 개방 효과의 확대, 유무선 통합서비스 활성화, 통신서비스의 진화에 따라 트래픽 증가에 따른 처리에 대한 유선과 무선 사업자간 상호접속과 관련된 다양한 이슈가 발생할 것으로 예상된다. 본 논문에서는 이동통신망과 유선인터넷망 간의 데이터망 상호접속 현황 및 연동에 따른 수익구조 관계를 분석 한다. 또한 유무선 연동 구조의 가치체인과 관계 사업자를 분석하고 무선인테넷 요금제 유형에 따라 이동통신사, 유선계 사업자, 콘텐츠 사업자 중심으로 상이하게 나타나는 이해관계를 분석하고자 한다.

• Journal of Labour Economics
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• v.39 no.4
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• pp.1-29
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• 2016

This study examines the effects of the "youth unemployment bonus" program implemented in 2004. We view this program through the lenz of search-matching models and apply a quasi-experimental approach to an administrative unemployment insurance database of Korea. This episode is particularly useful because the program aims at long-term unemployed youths and the size of public assistance is large enough to subsidize employers for a year with a monthly subsidy of about $600. The main effects are found to be as follows: (i) the search period gets shortened by 18 days, (ii) the subsequent wage has increased by about three percents, and (iii) a conservative benefit-cost analysis reveals the validity of this program. We interpret these results in the context of general equilibrium models.

• Journal of Energy Engineering
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• v.7 no.1
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• pp.1-6
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• 1998

We consider the economic analysis of the domestic natural gas DSM (Demand Side Management). Since the demand of the domestic natural gas decreases in the summer and dramatically increases in the winter, the necessity of the DSM that will smooth the demand pattern of the natural gas is emerged. The economic analysis of the DSM program is used as a main tool for screening the DSM. This paper suggests an economic evaluation method for the domestic gas DSM from the perspectives of participants, Korea Gas Corporation, local distribution company, non-participants, and total resource. The high-efficiency gas boiler is selected as a case study to illustrate the economic analysis of the natural gas DSM.

• Journal of Korea Port Economic Association
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• v.32 no.1
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• pp.123-133
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• 2016

LNG(Liquefied Natural Gas) bunkering has become an important issue with the enforcement of environment regulations in shipping industry required by the International Maritime Organization (IMO). With increased attention on LNG bunkering, many studies that focus on safety, regulation, demand forecasting, and the feasibility of LNG fueled ships have been carried out. However, most of the existing research has not included considerations of the price of LNG bunkering and its competitiveness. This paper, therefore, suggests ways to increase price competitiveness in the LNG bunkering market in the Busan Port. This paper analyzes the LNG bunkering supply mechanism by investigating various LNG bunkering terminal business in the LNG supply market. Factors that determine LNG bunkering price and its elasticity are also identified. Market players who want to operate LNG bunkering terminals in the Busan Port should introduce a merchandising trade method that is able to exclude the "Korea premium" in order to increase price competitiveness. This paper also suggests adoptable strategies such as the use of TPS (Terminal to Ship via Pipeline) type of bunkering service and the importance of location for minimizing initial investment cost.

• Journal of Korea Technology Innovation Society
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• v.16 no.4
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• pp.883-912
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• 2013

This study examines network compositions of convergent research relationships in the field of high-tech convergence technology and investigates the relational linkages among various research fields. A network analysis was performed to evaluate the High-Tech Convergence Technology Development Program, a convergent research funding program of the National Research Foundation of Korea (NRF); the dataset covered the 2009-2011 period. The analytical results reveal the hidden network structure of convergent research relationships and demonstrate that the formation of convergent research might be enhanced by interdependent pressures placed on various research fields but also by accumulated research capabilities that each of these fields possessed and which could be used to converge specialized and heterogeneous research areas and interests.

• Proceedings of the Korea Water Resources Association Conference
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• 2019.05a
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• pp.107-107
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• 2019

하천은 과거부터 현재까지 인간의 삶에 있어서 중요한 공간이며 환경적, 생태적으로도 중요한 가치를 지니고 있다. 특히, 하천은 물과 흙으로 이루어져 있기 때문에 수생물이 살아갈 수 있는 독특한 생태 서식처 공간을 제공한다. 국내에서는 1980년대 말부터 하천환경의 개선 및 복원에 대해 관심과 인식을 높이고 공감대를 형성하여 훼손된 하천을 원래 모습으로 되돌리는 사업을 수행하였다. 이러한 하천복원사업이 하천에 서식하는 수생물의 어떠한 영향을 주는지 분석하기 위해 최근에는 다양한 물리서식처 분석이 수행되고 이를 통해 각종 복원계획을 수립하고 있다. 하천복원사업을 통한 생태유량 재산정, 보 철거의 영향, 다양한 복원기법을 통한 수생물에 미치는 영향 파악 등을 들 수 있다. 그러나 이러한 기존 연구들은 하천복원사업으로 인한 수리특성과 수생 서식처의 변화를 살펴보는 간접적인 영향에 대한 내용이었다. 그러나 직접적으로 영향을 미치는 하도의 단면을 재설계하고 다양한 복원기법을 적용하여 그 영향을 파악하는 연구도 수행되어야 할 것으로 판단된다. 본 연구는 수리학적으로 유리한 저수로 물길 조성 및 다양한 저수로 조성기법의 적용을 통해 우점종의 서식처에 미치는 영향에 대해 원주천을 대상으로 물리서식처 분석을 수행하였다. 대상구간은 원주천 중 상류에 위치한 900 m 구간으로, 대상 어종은 원주천의 중 상류에 서식하는 우점종인 참갈겨니를 목표로 하였다. 수리분석과 서식처분석은 각각 River2D 모형과 서식처 적합도 모형을 사용하였다. 서식처 적합도 모형에 사용된 서식처 적합도 곡선은 Gosse (1982)의 방법을 이용하여 구축하였으며, 수심, 유속, 기층을 모두 고려하여 물리 서식처 분석을 수행하였다. 저수로 물길 복원 조성을 위하여 수리학적으로 유리한 저수로 단면으로의 복원 및 거석, 여울/소 구조, 단면의 확폭을 통해 기존 자연형 하천과는 다른 복원을 조성하였다. 수리학적으로 유리한 저수로 물길 복원을 조성한 결과를 이용하여 물리서식처 분석을 수행하였을 때, 기존 자연하천인 현상태 대비 약 37% 가중가용면적이 악화되는 것으로 나타났다. 그러나 수리학적으로 유리한 저수로 단면의 설계 조건에서 거석, 여울/소 구조 및 단면의 확폭의 복원을 수행하였을 때 서식처가 최소 약 3%에서 최대 21%까지 가중가용면적이 향상되었다.

• International Commerce and Information Review
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• v.14 no.2
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• pp.295-315
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• 2012

This paper attempts to reveal the relationships between IT capacity, SCM risk management factors and Business Performance. According to precedent studies, Our study analysed 153 cases from Korean companies which perform a supply chian risk management and then developed a structural equation model. As a result of the model test, this empirical study found that IT Infrastructure have a positively significant influence on companies' IT application and risk management. Second, there was a positive relationship between IT application and Business performance. Last and foremost, SCM risk management affects positively on Business performance. From this study, we found that investment in IT infrastructure will increase Business performance via raising risk management level, but there was less relationship between IT application level and that of risk management. For further study should be conducted for discovering effective practice factors of risk management.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.6
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• pp.418-428
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• 2016

The participants in an urban and housing redevelopment project were categorized as construction companies, government employees, and housing cooperatives. This study analyzed how a public management system affects the continuous participation intention using comprehensive project satisfaction. The specific factors for the evaluation items of a public management system were composed using advanced research. A hypothesis and research model was set up and verified using the PLS-SEM model to analyse how the continuous participation intention is affected by the public management system via comprehensive projects satisfaction. Setting the project plan and selecting the project tool, as well as post management and sustainability affect the comprehensive projects satisfaction meaningfully in the case of construction companies. The participation of the user, and post management and sustainability affect the comprehensive project satisfaction meaningfully in the case of government employees. The operating organization and using and participation of the user affect the comprehensive project satisfaction meaningfully in the case of a housing cooperative. The comprehensive project satisfaction affects the continuity of the participation meaningfully in the case of all of project participants.

• Journal of Satellite, Information and Communications
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• v.9 no.3
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• pp.121-126
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• 2014

ETRI(Electronics and Telecommunication Research Institute) has joined National GNSS Research Center program of Defense Acquisition Program Administration and Agency for Defense Development in 2010. The research subject is technology for MSAR(Military Search and Rescue) system configuration. In this project, we analyses the ways in order to improve the accuracy, reliability, availability for MSAR system from M&S(Modeling and Simulation). The MSAR System M&S Software can be used for performance analysis of new elements, such as ground elements and satellite elements without any hardware development. In this paper, after introduction of the architecture design and functional scope of the simulator, the performance analysis result for MSAR M&S software is presented.