• 제목/요약/키워드: national R&D

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국가 R&D 투자 배분에 관한 시스템 다이내믹스 모델링 (System Dynamics Modeling for the Allocation of National R&D Investment)

  • 김동환;안승구
    • 한국시스템다이내믹스연구
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    • 제12권2호
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    • pp.153-176
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    • 2011
  • This paper is a summary of how we constructed a national R&D investment model. Although a national R&D investment is an important decision making for the government as well as industries, currently there were little efforts on making a model reflecting governmental decision making on the individual size of national R&D. We constructed a simple national R&D model through discussion with 3 researchers who have rich experience of governmental investment of national R&D. In this paper, we tried to show how our simple R&D model can reflect the perception on the R&D efficiency that changes as the industry reach to its saturation level.

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DEA를 이용한 농림 R&D 사업의 효율성 분석 (Efficiency of Analysis Agricultural R&D Program by Data Envelopment Analysis)

  • 김준현;이봉수;김재경
    • 무역학회지
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    • 제45권1호
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    • pp.47-64
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    • 2020
  • For the past few years, the Korean government has been consistently expanding its national research & development budget to accelerate economic growth through technology innovation and the enhancement of international competitiveness in global markets. The objective of this paper is to define the concept and analyze the current status of national R&D programs by measuring R&D efficiencies. We determine R&D efficiency by reflecting inputs and outcomes of the five main agricultural R&D programs between 2010 to 2015, and by categorizing and regrouping figures that may affect R&D performance. Among 1,128 targeted projects, 832 projects with patents and thesis were selected for analysis in terms of measuring technology efficiency, pure technology efficiency, and efficiency of scale. Also, the Kruskal-Wallis test was also utilized as well. As a result of empirical analysis, figures that affected the efficiency level of national R&D programs included differences in research resources, research management levels and skills, and research field. This study can be utilized as a reference for re-establishing national agricultural R&D policies, such as enhancement of national technology competitiveness in the global market environment, improving and adapting to new agricultural conditions, market expansion, national agricultural R&D efficiency, aging rural population, agricultural management cost increase, and climate change mitigation.

Dipeptide (Tyr-Ile) Acting as an Inhibitor of Angiotensin-I-Converting Enzyme (ACE) from the Hydrolysate of Jellyfish Nemopilema nomurai

  • Kim, Yeon-Kye;Lim, Chi-Won;Yeun, So-Mi;Lee, Moon-Hee;Moon, Ho-Sung;Cho, Hyeon-Ah;Yoon, Na-Young;Yoon, Ho-Dong;Park, Hee-Yeon;Lee, Doo-Seog
    • Fisheries and Aquatic Sciences
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    • 제14권4호
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    • pp.283-288
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    • 2011
  • The jellyfish Nemopilema nomurai was hydrolyzed with papain and a novel dipeptide purified via ultrafiltration, gel filtration chromatography with Sephadex LH-20, and reverse phase chromatography using $C_{18}$ and $C_{12}$ columns. The IR, 1H NMR, 13C NMR, and MS spectrometer analyses showed that the dipeptide comprised tyrosine-isoleucine (Tyr-Ile). The $IC_{50}$ and $K_i$ values were $6.56{\pm}1.12$ and $3.10{\pm}0.28\;{\mu}M$, respectively, indicating competitive inhibition of angiotensin-I-converting enzyme (ACE). As a novel ACE-inhibitory active peptide, Tyr-Ile may have potential for use in antihypertensive therapy.