• Proceedings of the KIEE Conference
• /
• 2000.07a
• /
• pp.409-411
• /
• 2000

전력산업 구조개편이후 송전체제, 특히 송전요금체계에 관한 연구가 미흡한 가운데 자연적 독점을 유지하게 될 송전에 대한 정부의 규제가 중요성을 가지게 되었다. 본 연구에서는 여러 정부 규제방안들을 비교 검토하여 최적방안 모색을 위한 방향을 제시하고자 한다. 송전요금은 비용반영 투명성, 비(非)차별, 경쟁 등의 원칙을 지켜야 하고 이런 송전요금에는 경제적 효율성 사회 복지, 비용 최소 운영 등의 증진을 위해 한계비용이 반영되어야 한다. 하지만, 송전 네트웍은 규모의 경제에 종속되는 장기 투자로 구성된다. 이런 조건에서는 한계비용은 정의되기 어렵다. 그러므로 송전요금은 단기적 한계비용들의 신호와 장기적으로는 적절한 비용회수의 보장들과의 타협조정을 해야 한다. 네트웍 요금은 경쟁 정책의 원칙을 준수할 필요가 있으며 어떤 한 네트웍 회사도 과도한 요금을 부과한다든지 또는 사용자들을 차별한다든지 또는 약탈적(predatory) 방식으로 행동할 시에는 지배적 지위 남용에 대해 벌칙을 당하게 되어있다. 송전요금에 관한 결정은 공공서비스 의무비용, 특정 소비자그룹 우대를 위한 국가 정책들과 같은 사회적 목적들에 의해 제한을 받는다. 현존하는 대표적인 정부규제방안인 가격상한제와 투자보수율 규제방식을 검토한 결과 유도된 중요한 사실은 가격상한제 규제방식이 기업들로 하여금 위험(risk)에 좀 더 종속되게 만들지만 반면에 비용절감을 위한 강력한 인센티브를 주어 효율성 향상을 기할 수 있게 만든다는 것이다. 이러한 사실은 가격상한제 규제방식이 정부규제의 기본원칙에 더 많이 부합되며 궁극적인 경제체제의 목표인 자원의 효율적 배분에 더 가깝다는 것을 의미한다.

• Journal of Korea Port Economic Association
• /
• v.34 no.4
• /
• pp.191-208
• /
• 2018

This paper focuses on the integration aspect of operators to determine an improvement strategy for the operating system to enhance competitiveness of Busan Port. This Study proposes the following alternatives: valuation standards for the integration of operators, the road map for the integration period, the scope and role setting of integrated operators' participation of Busan Port Authority(BPA), and the separation and linkage North Port and the New Port operators. First, the valuation standards for operator integration should be based on international standards. Additionally quantitative factors such as financial situation, business performance and participating companies' profitability, and the qualitative factors such as management ability, technology, and labor relations should be considered. Second, the timing of North Port's operator integration should be prioritized in the short term in conjunction with the commencement of its phase 2-4, 2-5, and 2-6. The integration of New Port operators should provide a road map for a relatively long-term perspective. Third, the participation of BPA' integrated operators should be considered in terms of publicity as a policy coordinator between terminals and by pursuing the profitability of entering into overseas business by fostering Korean global terminal operators. The scope and role of participation ensures that the experience and technology of the terminal operation business is maximized. Fourth, because physically intergrating the North Port' operator into a single corporate form is difficult, initially establishing a special purpose company to maximize the effect of the integrated operation is necessary. Then, the operators decided to convert to a holding company given the termination of the lease term contract with the State or BPA, and ultimately proposed a merger into a single corporation.

• Journal of Information Management
• /
• v.43 no.2
• /
• pp.151-168
• /
• 2012

A viral marketing has been an effective marketing tool in various fields. In this study, we applied a viral marketing strategy for managing the Internet community website of scientists and engineers, KOSEN(www.kosen21.org). We developed a function that enables members to send promotional e-mails to their acquaintances, and we also designed a reward system for the members who participated in KOSEN viral marketing. With these strategies, KOSEN members reacted positively on the rewards (i.e., mileage points, gift card) and also the loyalty members took part in the viral marketing program more actively than other members. Furthermore, an attractive event was very effective for the prompt reaction of the viral marketing. Managing loyalty members is necessary for the continuous effects. The viral marketing strategies and analysis results of this research could be used for the management of an Internet service.

• The Journal of the Korea Contents Association
• /
• v.10 no.7
• /
• pp.244-252
• /
• 2010

The purpose of this study was to provide the fundamental data for further developments of the school dental clinic program through evaluating oral health knowledge, status and attitude of school dental program subjected on teachers who had experienced the program. The subjects were total 186 teachers from 8 elementary school in Ulsan metropolitan city area that had been operating school dental clinic program from 1999 to 2005. For the teachers by school and period of operation, the level of knowledge and behavior of oral health were no difference, however the recognition and behavior level in shorter operation group were higher, the level of recommend other school was higher than previous research. The efforts for further development school dental clinic program associated with advanced countries should be emphasized including the higher interests, more active participation and strengthened education. The systematic supports would be also important.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
• /
• v.15 no.5
• /
• pp.405-412
• /
• 2022

This paper studies the method of estimating power loss and classifying the factors for improving the power generation efficiency through O&M. It is installed under various climatic conditions worldwide, operational and maintenance technologies suitable for the characteristics of the installation location are required. Existing studies related to solar power generation efficiency have been actively quantifying the impact on short-term losses by environmental factors such as high temperature, dust accumulation, precipitation, humidity, and wind speed, but analysis of the overall impact from a long-term operation perspective is limited. In this study, the potential for efficiency improvement was analyzed by re-establishing a loss classification system according to the power flow of solar power to derive a comprehensive efficiency model for long-term operation and estimating power loss through a case study for each region where climate conditions are classified. As a result of the analysis, the average annual potential for improving soiling loss was 26.9%, Death Valley 7.2%, and Seoul 3.8%. Aging losses was 6.6% in the 20th year as a cumulative. The average annual potential due to temperature loss was 2.9 % for Doha, 1.9% for Death Valley, and 0.2% for Seoul.

• Korean Security Journal
• /
• no.61
• /
• pp.9-38
• /
• 2019

As the scales & density of the Korean national infrastructures have been increased, they will be identified as rich and attractive potential targets for intensified North Korea's attack in the rear region and terrorism attack. In addition, due to changes in security environment such as drone threats and lack of security forces under the 52-hour workweek law, I think that it is the proper time point to reevaluate the effectiveness and appropriateness of the current physical protection system and its shift to a new system. In this study, the direction and improvement of the perimeter physical protection systems of the national infrastructures are to be studied from the viewpoints of its concepts of operations and design methodology, focusing on the nuclear power plant. The reason why we focus on nuclear power plants is because they cause wide-range and long-term damages caused by radioactive materials disperal and pollution, along with short-term damage caused by the interruption of electricity generation in the event of damage to nuclear power plants. With the aim of extracting improvement directions, as we will comprehensively review domestic research trends and domestic·overseas related laws, and consider Korea's specificity, we try to reframe the concept of operation - systematization, mobilization and flexibility -, and establish criteria on system change. In order to improve the technical performance of the new perimeter physical protection system, we study on high-fidelity·multi-methodology based integrated design methodology, breaking from individual silo-type design methods, and I suggest improvement of government procurement, its expansion to export business and other national infrastructure.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.22 no.4
• /
• pp.167-174
• /
• 2021

This study examined the influences of participation in the free semester on school life satisfaction and interest in classes and whether the effect persisted longitudinally. The participants were students from middle schools located in large cities: 451 students in the experimental group and 466 students in the control group. Only the students of the experimental group participated in the free semester. The data were collected at the end of the free semester for three years, and the results are as follows. First, the school life satisfaction of students in the experimental group was significantly higher than those in the control group until the second year but not in the third year. Second, there was no difference in interest in the main subject classes between the experimental and control groups until the third year. Third, students' interest in art and sports classes in the experimental group was significantly higher than those in the control group until the second year but not in the third year. These findings suggest that long-term planning and management of the institution rather than short-term introduction is required for the continuous effects of the free semester.

• Journal of the Korean Geographical Society
• /
• v.40 no.1 s.106
• /
• pp.47-62
• /
• 2005

This paper aims at analyzing the economic effect of the public financial expenditure on the national industrial complexes. Since public finance support is indirectly supplied to the national industrial complexes, the economic effect of the public financial expenditure on the national industrial complexes may be analyzed indirectly and circuitously In this contort, this paper uses 3 stage analysis method. In the first stage, the economic effect that the public financial expenditure influence the allotment, production and employment of companies residing in the national industrial complexes is analyzed by multiple regression analysis. In the second stage, the economic effect that the investment on the national industrial complexes influence the national and regional economies is analyzed by multiple regression analysis. In the third stage, the economic effect of the public financial expenditure on the national industrial complexes is analyzed through the compromising the results of the first and second stage. The main results of this paper are as follows. Firstly, public financial expenditure on the infrastructure of national industrial complexes leaded to positive growth of the allotment of companies residing in the national industrial complexes. Additionally, growth of the allotment of companies leaded to the positive effect on the production and employment of companies. And secondly, growth of the allotment of companies leaded to the positive effect on the gross regional domestic production. Finally, financial expenditure on the infrastructure of national industrial complexes leaded to positive effect on the national and regional economic growth through the compromising the results of the first and second stage.

• Proceedings of the KIEE Conference
• /
• 2009.07a
• /
• pp.161_162
• /
• 2009

'The Energy Independence and Security Act of 2007' 연방 법안이 2007년 12월 미국 의회 통과에 힘입어, 법안의 Title XIII에 포함된 '스마트그리드(Smart Grid)'는 다양한 연구 결과를 목표로 추진되고 있다. 스마트그리드는 IT를 기존 전력기술에 적용해 송전, 배전망을 지능형으로 만들자는 개념으로, 2003년 DOE가 발표한 2030년까지의 전력인프라 발전 계획인 '그리드2030(Grid2030)'의 실천 전략으로 볼 수도 있으며, 2008년부터 2020년까지 스마트그리드에 대한 연구개발, 시범사업 등을 국가 정책사업으로 추진한다는 내용을 담고 있다.[1] 이러한 장기간의 국책 사업들은 단기적으로 다양한 시범사업을 통하여 가상의 시뮬레이션이나 데모시스템 구현을 실시하여 교훈을 얻는 방식으로 진행된다. 시범 사업의 결과만으로는 유틸리티 전체의 전력망에 적용하는 것은 비용적인 측면에서나 안정적 전력 운영에 있어서 무리이기 때문에 연구 결과를 현재의 전력망과 조화롭게 점진적으로 배치시키는 과정과 상호 운용성 통합 과정이 필수적으로 따르게 된다. 본 논문에서는 스마트그리드 관련 국외 시범사업 및 관련 활동들을 살펴보고 IntelliGrid 프로그램에서 제시하는 자동화 아키텍쳐의 지능화시스템을 적용하기위한 현장 전개 방법을 고찰하고자 한다.

• Journal of Korea Port Economic Association
• /
• v.28 no.3
• /
• pp.151-165
• /
• 2012

This study is to develop a job model through job analysis on port security operation using a DACUM Method. Total 8 duties and 59 tasks are drawn through job analysis on port security operation. DACUM committee evaluated the degree of importance, difficulty and frequency of execution by each work with ABC rankings. In dosing so, job analysis model on port security operation by completing a DACUM research chart including job, duty and task in the field of port security operation is concluded. Such a Job model development could be used as a basic data and information for developing a short and long-run education programme in the field of port security operation.