• 지역연구
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• 제15권1호
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• pp.1-22
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• 1999

It is widely known that optimal control techniques are useful to measure the performance of macroeconomic policy. This paper examines how the method could be applies them to the evaluation of the public investment expenditures conducted by the local government of Choongbook Province in Korea. The numerical example illustrates the usefulness of the methods for the evaluation of the regional economic policies suggesting the main findings as follows: (1) If the local government of Choongbook Province had increased the public investment expenditures allowing the budget deficits for the first three to four years during the period between 1985 and 1990, its GRDP would have early risen to the ratio of more than three percent of Korea's total GDP. (2) The additonal welfare losses incurred by not following the optimal policy were 0.191 in 1986, 0.607 in 1987, 1.585 in 1988, and 0.132 in 1989, indicating that the public investment policy proves to be the best in 1989 and the worst in 1988.

• KIEAE Journal
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• 제12권6호
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• pp.63-68
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• 2012

The aim of this study is to evaluate current policies and suggest the way of overcome financial impediments to the energy efficiency function of residential buildings. Based on this analysis the paper enumerates policy recommendations for enhancing how energy efficiency is addressed in building codes and other policies for residential buildings. For achieving this goal, this study conducts the cost-benefit analysis to measure total energy savings and associated total cost. The results of study shows that the cost is greater than the benefit from 1st to 4th year but the benefit will be greater than the cost for the rest of the year. In addition, this study designs a financial support method and an implementation mechanism. Investment from the capital market will take place with the government's interest subsidy. Home retrofit will be undertaken with low interest rate with 2.5% and the return will be paid by a monthly energy bill. The results of this study provides some useful insights for the policy design, including the importance of developing information tools for providing appropriate information to households.

• 전기학회논문지
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• 제61권8호
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• pp.1186-1192
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• 2012

In Jeju Smart Grid field test, Zigbee technology is being used as one of customer side solutions for AMI. Although Zigbee networks that provides effective connectivity and control among devices are advantages in ease of implementation and use, the data can be exposed to cyber attacks such as eavesdrop, unauthorized data dissemination and forgery. Currently authentication and confidentiality services are provided with the network and link keys generated based on public key pairs that are pre-installed in offline. However, the network is vulnerable once a hacker intrudes into a local network because operation and management policies for the generated keys are not well-established yet. In this paper, the vulnerability of the Zigbee security system in the customer side environment of Jeju Smart Grid field test is analyzed. Then, two-way authentication with the unique identifiers of devices and user-specific group management policies are proposed to resolve the vulnerability.

• 산경연구논집
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• 제4권2호
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• pp.21-30
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• 2013

Purpose - The objectives of this study are to find the strengths, weaknesses, opportunities, and threats related to the national innovation system of Iran (using a SWOT analysis) and to extract some strategic recommendations to modify the innovation policies of Iran. Research design, data, and methodology - This study used a literature review and field study. In the first phase, the author studied library resources and articles, and browsed through Internet information about the subject. The second phase was a field research investigation through designed questionnaires and interviews with more than 100 policymakers, officials, executives, and others related to the national innovation system in 2011. Results - In this research study, strategic recommendations were extracted through a SWOT model for improvements to the innovation policies of Iran. Conclusions - The findings of this study show the role of strengths, weaknesses, opportunities, and threats in the national innovation system of Iran and suggest strategic recommendations for its modification.

• 노동경제논집
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• 제42권2호
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• pp.1-35
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• 2019

본 논문은 간단한 일반균형 모형을 통해 소득 이전과 임금 보조금 정책의 경제 효과를 비교한다. 지원 대상인 저임금 근로자가 수요의 소득탄력성이 높은 재화 및 서비스 생산에 집약되어 있을수록 조세를 통한 재분배 효과는 제한적으로 나타난다. 한편, 지원 방식에 있어서 근로장려세제와 같은 임금보조금(wage subsidy) 정책은 단순한 소득 이전(income transfer)에 비해 고용과 GDP 증가라는 긍정적 효과를 동반할 수 있지만, 그 재분배 효과는 노동공급뿐 아니라 노동수요의 탄력성에 크게 의존하는 것으로 나타났다. 결과적으로 효율성과 형평성의 최적 조합을 위해서는, 각 정책의 효과에 대해 면밀한 실증분석이 필요하다고 판단된다.

• 산업경영시스템학회지
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• 제18권33호
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• pp.1-10
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• 1995

The allocation of files is essential to the efficiency and effectiveness of a distributed system that must meet geographically dispersed data processing demands. In this paper, we address an optimization model that generates optimal file migration policies in distributed database systems. The proposed model is a more generalized model that includes system's capacity constraints - computing sites' storage capacity and communication networks' capacity - which have not taken into consideration in previous researches. Using this model, we can establish initial file allocation, file reallocation and file migration polices that minimize a system operating cost under system's capacity constraints at an initial system design or reorganization point The proposed model not only can be adopted by small-sized systems but also provides a foundation for effective and simple heuristics for adaptive file migration in large systems.

• STI Policy Review
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• 제2권1호
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• pp.1-12
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• 2011

Korea is examining how to coordinate its S&T policies and solidify its position as a leader of infrastructure innovation policy that forms the foundation for many different policies. A number of questions have been raised, such as whether to install a superior coordinating body like the National Science and Technology Council (NSTC) or separate the budget allocation and coordination authority from the budget-planning ministry. Korea has tried using various institutional coordination devices and functions such as reorganizing its administrative ministries based on related functions and installing or reinforcing a superior coordinating body. In line with these discussions, the strengthening of the S&T policy coordination function through the NSTC is currently under review. In order to design an effective S&T coordination system in step with changing political and social demands, it is important to have a clear recognition of the current context as well as the unique institutional characteristics of Korea. This study examines the evolution of Korea's S&T policy coordination systems and analyzes its features.

• 대한건축학회논문집:계획계
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• 제36권5호
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• pp.71-82
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• 2020

As the number of students continues to decline, alternatives to regional linkage and utilization of school facilities in the region are being sought. Therefore, the purpose of this study is to propose programs and remodeling directions for school facilities for neighborhood regeneration in urban regeneration revitalization areas. To this end, first, this study analyzed changes in educational courses and policies in Korea. Second, domestic and foreign cases of combined operation of school facilities were analyzed. Third, implications for the improvement of local-linked school facilities were derived through policies and case analysis. Finally, the direction of the plan considering this was proposed.

• 전기학회논문지
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• 제65권3호
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• pp.411-418
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• 2016

In accordance with global energy conservation policies such as MEPS(Minimum Energy Performance Standard), electric motor industry is moving to super-high-efficiency machines and research to develop IE4 (International Energy Efficiency Class4) motors has been launched. In this situation, SynRM (Synchronous Reluctance Motor) has been attracting attention in place of induction motor which hardly provides super premium efficiency. As a result, much research on SynRM is being performed at home and abroad. Also, some products have already been appearing in the market. Compared to induction motor, SynRM has better efficiency per unit area and wider operating range. Although the utilization of control system in synchronous motor results in higher prices, we still need to concentrate on developments of SynRM so as to comply with the new policies. This study demonstrated the electromagnetic design methods of super-premium SynRM while maintaining the frame of existing IE3 induction motor for blower. We documented the design procedures for generating high saliency which is the most essential and mechanical stress analysis is also treated. In conclusion, we proved the validity of our design by manufacturing and testing our SynRM models.

• 한국조경학회지
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• 제43권1호
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• pp.96-107
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• 2015

하수처리시설, 군부대 등의 산업이전적지의 공원화 계획이 늘어나면서 브라운필드 재개발은 조경계획 및 디자인에서 하나의 분야로 자리 잡았다. 특히, 주변 커뮤니티 활성화, 지가 상승 등 동반이익에 대한 기대가 높아지면서 선별된 부지들의 종합적 계획 및 관리에 대한 필요성이 인식되고 있다. 본 연구는 미국 브라운 필드 관리 정책의 변화양상을 살펴 본 기초적인 사례연구로서, 1980년 수퍼펀드 프로그램 도입 이후, 약 30 여 년간 확장하여 온 브라운필드 프로그램과 정책의 시기별 특성을 파악하는 것을 주 목적으로 한다. 연구 방법으로 서술적, 해석적 방법에 기반한 미국 환경부 산하 기관들의 웹문서 및 관련 문헌 분석을 통해 정책의 특성을 시계열적으로 분석하였다. 본 연구의 결과, 주요한 변화를 기점으로 하여, 환경규제시기, 오염정화 및 재개발 촉진시기, 종합적 계획시기의 세 가지 시기로 구분되었고, 주요 특성은 규제 완화 및 재조정, 지원 프로그램의 다양화, 하향식과 상향식 방식의 조화, 데이터베이스 구축의 네 가지 측면으로 요약되었다. 본 연구는 대상지 선별기준, 이해 당사자 파악 및 책임분쟁 조정, 오염도 평가비용 및 처리 등 브라운필드만이 가진 공통 문제들이 어떻게 다뤄져 왔는지 선례를 살펴봄으로써, 향후 한국의 체계적 브라운 필드 관리 및 계획에 시사점을 제공하는 것에 의의를 두고 있다.