• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2004.11a
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• pp.197-202
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• 2004

Turnkey contract system is an effective ordering system for the organizations that technical engineers are insufficient in their construction projects. It is possible to reduce project duration and to improve project Quality in an integrated contract system between design and construction. However, owners can have a difficulty caused from unitary responsibility system. This study analyzes present situation and problems of turnkey contract system in our country. The results includes various methods for improving the system based on the analysis of bid price nd selection procedure.

• Journal of the Korean Society of Propulsion Engineers
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• v.18 no.3
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• pp.1-7
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• 2014

A set of preliminary design parameters for the bipropellant rocket engine using liquid methane-fuel as green propellant were derived through a theoretical performance analysis. Chemical equilibrium analysis utilizing CEA was conducted for the prediction of combustion performance: combustion characteristics according to the O/F ratio and chamber pressure variation were investigated. For a determination of chamber-characteristic length, the vaporization time of fuel-droplet with various performance parameters was calculated by applying Spalding's 1-D droplet vaporization model. Finally, the preliminary design specification of methane-bipropellant rocket engine, which is to be performance-tested under the ground firing condition, was proposed.

• Journal of Climate Change Research
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• v.1 no.2
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• pp.163-177
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• 2010

This study analyzes the economies of photovoltaic systems in an apartment complex of 1,185 households, in cases of feed-in tariff and subsidy for solar home program of the government. When including the revenue only from electricity sales, NPVs of subsidy and that of feed-in tariff are -560 million KRW and -87 million KRW respectively. With the avoided social cost included without the revenues from CERs, NPVs of subsidy and feed-in tariff are -556 million KRW and -84 million KRW respectively. With the revenues from CERs, NPV of subsidy is -526 million KRW and NPV of feed-in tariff is -54 million KRW. As results of sensitivity analysis based on the changes in capital costs and discount rates, while all scenarios with subsidy including the revenues from CERs are not commercially viable, all scenarios with feed-in tariff exclusive of the revenues from CERs are commercially viable when discount rate is less than 7.2% or capital cost is less than 6,840 thousand KRW/kW. In the cases that include the avoided social cost, while all scenarios with subsidy including the avoided social cost as well as the revenues from CERs are not commercially viable, all scenarios with feed-in tariff are commercially viable without the revenues from CERs when discount rate is less than 7.2% or capital cost is less than 6,856 thousand KRW/KW. The results indicate that the changes in discount rates do not influence the revenues from CERs, but the revenues from electricity sale. Considering that the number of apartment complex and the positive environmental and social benefits from PV system, government needs to promote its diffusion.

• Reproductive and Developmental Biology
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• v.28 no.3
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• pp.203-207
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• 2004

The transgenic mice carrying human Interleukin-10 (hIL-10) gene in conjunction with bovine (3 -casein promoter express hIL-10 in milk during lactation. In this study, stability of germ line transmission and expression of hIL-10 transgene integrated into host chromosome were monitored up to generation F8 of transgenic mice. When male mouse of generation F8 was crossbred with normal females, approximately half of offspring (50.9±5.8%) were identified as transgenic mice. Generation F9 to F15 mice also showed similar transmission rates (66.0±20.1%, 61.5±16.7%, 41.1±8.4%, 40.7±20.3%, 61.3±10.8%, 49.2±18.8% and 43.8±25.9%, respectively), implying that hIL-10 transgene can be transmitted stably up to long term generation in the transgenic mice. Expression levels of human IL-10 from milk of generation F9 to F14 mice were 3.6± 1.2 mg/ml, 4.2±0.9 mg/ml, 5.7±1.5 mg/ml, 6.3±3.5 mg/ml, 6.8±4.5 mg/ml and 6.8±3.1 mg/ml, respectively, which was showed high-level expression compared with that of generation F1 (1.6 mg/ml) mice. In conclusion, our results suggest that transgenic mice can be continuously passed their transgenes to the progeny through the breeding program with the same productivity of human IL-10 protein in their milk.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2004.11a
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• pp.73-78
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• 2004

입낙찰제도의 효율적 운영은 건설산업의 발전과 산업구조 선진화를 위한 정부 정책의지 실현에 있어 핵심적인 요소가 된다. 본고에서는 현행 입낙찰제도 중 가장 큰 논란이 되고 있는 최저가낙찰제도를 대상으로 그 시행성과와 실태를 짚어보고, 그 개선방향과 효율적 운영방안을 제시하였다. 실태분석 결과, 현행 최저가낙찰제도의 핵심적인 문제는 지나친 저가낙찰로 인한 건설업체의 수익성 악화와 부실공사의 우려이며, 이는 건설업계의 차원을 넘어 국가와 공공의 이익에 있어서도 위험요소로 적용할 가능성이 크다. 그러나 건설산업의 선진화 관점에서 볼 때, 최저가낙찰제라는 제도 자체는 많은 긍정적인 가능성을 가지고 있는 제도이다. 따라서, 최저가낙찰제가 정착되기 위해서는 단기적으로는 실효성 있는 저가낙찰 방지대책의 조속한 수렵이 필요하며, 장기적으로는 최저가낙찰제가 제 기능을 발휘할 수 있도록 보증제도 개선, 발주자의 역량 강화 등 건설산업 전반에 걸친 제반 여건들을 정비해 나가야 할 것이다.

• Proceedings of the Korean Quaternary Association Conference
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• 2004.06a
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• pp.47-48
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• 2004

• KLA journal
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• v.39 no.5 s.312
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• pp.49-59
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• 1998

이글은 DDC 제21판의 올바른 이해를 돕기 위해 기획된 것으로, 지난 호부터는 DDC 제21판의 보조표에 대해 살펴 보고 있다. 이번 호에서는 제 2보조표인 지역구분표에 대해 구체적으로 분석해 보고자 한다.

• Monthly Korean Chicken
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• v.58 no.52 s.118
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• pp.45-67
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• 2005

친환경 축산직불제의 도입목적과 필요성 - 친환경 축산직불제 시범사업 실태분석 - 2005 친환경 축산직불제 시행지침 - 친환경 축산 우수농가 사례

• Korean Journal of Social Welfare
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• v.57 no.1
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• pp.245-269
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• 2005

This paper purports to evaluate the public assistance programme of Korea in comparison with those of member states of the European Union, using the concept of poverty regime as a heuristic device. For this purpose, chapter two discusses notions of welfare-state regime (Esping-Andersen, 1990) and poverty regime(Sainsbury and Morissen, 2002). Chapter three examines poverty and income distribution in Korea and the member states of the EU, and chapter four compares and analyses the public assistance programme of those countries, using hierarchical cluster analysis. It claims that the 'welfare paradox' of $L{\empty}delmel$ (1997) is not based on evidence, and duly concludes that the overall level of welfare effort such as welfare expenditure is a main determinant for the development of public assistance programmes.

• Proceedings of the Korean Society for Information Management Conference
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• 2002.08a
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• pp.169-174
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• 2002

한국목록규칙 제4판 초안의 제1부 기술 중 제1장 기술총칙에 대한 각 조문을 AACR2R(1998), NCR(1996), ISBD(G)(1992)와 비교하여 보완과 수정이 되는 부분을 제시하고자 하였다.