• Korean Chemical Engineering Research
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• v.55 no.5
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• pp.609-617
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• 2017

Lignocellulosic biomass is a renewable resource for production of biofuels and biochemicals. Furfural (FF) is an important platform chemical catalytically derived from the hemicellulose fraction of biomass. Tetrahydrofurfuryl alcohol (THFA) is a FF derivative and can be used as an eco-friendly solvent with thermal and chemical stability. Despite large numbers of experimental studies for catalytic conversion of FF to THFA, few research have conducted on the economic feasibility for large-scale THFA production from FF. At the stage of assessment of the potential for commercialization of conversion technology, a large-scale process study is required to identify technological bottleneck and to obtain information for solving scale-up problems. In this study, process simulation and technoeconomic evaluation for catalytic conversion of FF to THFA are performed, as the following three steps: integrated process design, heat integration, and economic evaluation. First, a large-scale process including conversion and separation processes is designed based on experimental results. When the FF processing rate is 255 tonnes per day, the FF-to-THFA yields are 63.2~67.9 mol%. After heat integration, the heating requirements are reduced by 14.4~16.4%. Finally, we analyze the cost drivers and calculate minimum selling price of THFA by economic evaluation. The minimum selling price of THFA for the developed process are $2,120~2,340 per tonne, which are close to the current THFA market price.

• Journal of the Korean Society of Marine Environment & Safety
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• v.25 no.1
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• pp.102-110
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• 2019

The shipbuilding and offshore plant industry of Korea is important and leads Korea's economic growth, designated as the 1st to 4th export items in Korea in terms of export contribution over the period from 2011 to 2015. This study proposes ways to improve the national competitiveness of Korean shipyards in the global offshore drilling market by reviewing a business model for providing an integrated offshore drilling commissioning service in Korea. This commissioning service model, which was attempted in 2014, was reviewed, and a new proposed business model for overcoming the limitations of the previous model and activating further business was evaluated. As a result of an economic evaluation, it was found that a 150-meter water depth model is economically more effective. As the number of integrated commissions increased from 2 to 5 times per year, NPV, IRR and B/C ratios increased and the fee per use decreased. Therefore, for offshore drilling facilities constructed and delivered in Korea, it will be necessary to encourage integrated offshore commissioning.

• 한국정보통신설비학회:학술대회논문집
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• 2003.08a
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• pp.325-326
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• 2003

본 논문에서는 기존의 이동통신 네트워크에 IP 네트워크를 융합할 수 있는 통합광 액세스 네트워크, UAN을 제안한다. 그리고 UAN 확장장치의 구조와 규격을 제안하고 제작, 시험함으로써 UAN이 성능과 경제적 효과에서 우수한 구조임을 보였다.

• Proceedings of the KSR Conference
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• 2001.10a
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• pp.35.2-48
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• 2001

남북한의 경제협력은 한반도 통합과정과 통일 한반도에 있어서 매우 중요한 의미를 지니게 될 것이다. 남북한 통합이 아직 속단할 단계는 아니므로 중장기적 전망이 타당하겠지만 러시아의 시베리아지역은 아ㆍ태지역과 유럽(중동과 서남아시아와 중앙아시아 포함)을 이어주는 교량의 위치에 놓여 있는 중요한 지역이므로 이지역을 둘러싼 국제적인 경쟁과 다양한 형태의 국가간 및 지역간 협력의 시대가 불원간에 도래할 것임을 전망할 수 있다.(중략)

• Defense and Technology
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• no.8 s.174
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• pp.14-17
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• 1993

방산분야의 정책이나 전략부분은 단순히 방산 한 부분으로 보아서는 안되며, 국가 전체의 과학기술 개발정책차원을 고려해서 수립해야 합니다 이는 크게 보아 우리 경제의 국제경쟁력을 어떻게 제고시킬수 있는가와, 국방력을 어떻게 유지해야 자주국방을 달성할수 있는냐는 문제를 하나로 통합하는 시각에서 추진되어야 합니다 따라서 이제는 방산분야에 관련되는 부분과 연구개발부분은 국가적으로 통합적인 시스템을 형성하는 전략적 정책입안이 되어야 합니다

• Proceedings of the Korea Port Economic Association Conference
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• 2007.07a
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• pp.161-183
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• 2007

• Digital Contents
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• no.10 s.161
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• pp.50-53
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• 2006

21세기 '신경제' 시스템에서 흔히 지식은 '미래 경제의 석유'로 비유된다. 그만큼 경제를 추진하는 역량이 크다는 말이다. 대체로 데이터가 수치화된 자료, 즉 조각난 정보라면 그것이 모인것이 '정보', 이후 쓰임새를 갖춘 통합된 정보가 '지식'으로 분류된다. 그런데 이 지식을 창출하고 저장하는 방식은 컴퓨터ㆍ위성ㆍ휴대전화ㆍ인터넷, 기타 디지털 기술의 확산으로 급격하게 변하고 있다. 또 아울러 지식이 쇠퇴하는 속도도 빨라져서 엘빈 토플러의 용어대로 수많은 지식들이 금방 '무용지식(obsoledge)'으로 전락하고 만다.

• KOREAN POULTRY JOURNAL
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• v.20 no.5 s.223
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• pp.143-145
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• 1988

양계협 고시 제88-4-1호 축산법 시행규칙 제6조의 3 제6항 규정에 의거 닭경제능력검정세부실시요령을 제정(기존의 자체규정 및 각종지침 등을 정비통합)하여 농림수산부장관의 승인을 받아 별첨과 같이 이를 고시한다. 1988년 4월 1일 사단법인 대한양계협회장

• Water for future
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• v.54 no.12
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• pp.69-76
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• 2021

• The Journal of the Korea Contents Association
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• v.12 no.6
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• pp.518-529
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• 2012

Integration of Europe was started when European Union Treaty was concluded at Maastricht for the first time on December, 1991. Europe which may be called as a cradle of modern national state has realized a single Europe not only in the socio-economic integration field but also in the political field. Under this background, it is considered that life-long education policy for developing a new integrated growth engine of EU requires educational response that may get ready for socio-economic environmental transformation more than anything else. In particular, this policy is faced with an important task of having to achieve harmony of efficiency through diversity and mutual coordination in pursuing cooperation and integrated development of life-long education field. However, notwithstanding their efforts, since 2008, some countries of EU were faced with economic crisis due to economic recession and this situation starts to drive the whole Europe even to the point of their financial crisis at last. This crisis is currently shaking socio-economic integration of EU. This study intends to observe a status of establishing life-long education system and promoting a policy for socio-economic integration of EU and to analyze as to what kind of relevance adult participation rate of life-long learning among the countries belonged to EU has with per capita income and to explore as whether socio-economic integration among member countries could be sustained based on problems of integrative life-long education system under the economic crisis of EU. In addition, through this study, an implication required for presenting a new paradigm conversion, policy establishment and development direction for the life-long education of our country is intended to be deduced.