• 제목/요약/키워드: Technology Development Activities

검색결과 2,230건 처리시간 0.029초

Antioxidant Activities of Ethanol Extracts from Germinated Specialty Rough Rice

  • Lee, Youn-Ri;Woo, Koan-Sik;Kim, Kee-Jong;Son, Jong-Rok;Jeong, Heon-Sang
    • Food Science and Biotechnology
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    • 제16권5호
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    • pp.765-770
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    • 2007
  • To examine the possibility of using rough rice as a health-functional food, we investigated its changes in biological activity with germination. Antioxidant activities of the 70% ethanolic extracts of 'Goami2', 'Keunnunbeyo', and 'Heugkwangbeyo' were studied in comparison with those of ungerminated rough rice. The phytic acid level in rough rice decreased on germination, while the level of phenolic compounds increased. Reducing power increased in a dose-dependent manner and the germinated rough rice tended to have enhanced reducing power. Among the rough rice cultivars, the germinated 'Heugkwang' rough rice tended to be the most effective, with scavenging activities for the DPPH, superoxide, and hydroxyl radicals that were 1.6-, 1.3-, and 1.6-fold greater than those of the ungerminated 'Heugkwang' rough rice, respectively. We also found that the germination process increased antioxidant activity in all the rough rice cultivars, where activity was greatest for the 'Heugkwang' rough rice cultivar.

차세대 고속전철 시스템 시험검증 체계 구축 및 적용

  • 최종민;유일상;김연태;박영원
    • 한국경영과학회:학술대회논문집
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    • 대한산업공학회/한국경영과학회 2002년도 춘계공동학술대회
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    • pp.1079-1084
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    • 2002
  • Systems engineering technology development program for Korea next-generation high-speed railway(KNHR) system in progress is a national large-scale system development program that is not only a large-size and complex but also multi-disciplinary in nature. Using the RDD-IOO, a systems engineering tool, the KNHR program can establish requirements traceability and development process management in the course of development. This paper presents the results from a computer-aided systems engineering application to KNHR system technology development project over the three years of activities. The traceability among the system design database in the vertical direction of SE process, as the results of the first year and the second year research was accomplished. The database in both the requirement management domain and the project management domain was developed and set up the traceability between them in the horizontal direction of the SE process in the V model as the results of the third year research. Therefore, KNHR design database was built to support the life-cycle management of the system as well as to reuse the knowledge in future programs. In the following development phase, this database will be utilized to accomplish the test and integration activities providing a baseline database. The outcome of the study contributes to the establishment of the model-based systems engineering approach as a best practice in the accumulation and advancement of systems engineering technology for railway system development.

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Stakeholders Driven Requirements Engineering Approach for Data Warehouse Development

  • Kumar, Manoj;Gosain, Anjana;Singh, Yogesh
    • Journal of Information Processing Systems
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    • 제6권3호
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    • pp.385-402
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    • 2010
  • Most of the data warehouse (DW) requirements engineering approaches have not distinguished the early requirements engineering phase from the late requirements engineering phase. There are very few approaches seen in the literature that explicitly model the early & late requirements for a DW. In this paper, we propose an AGDI (Agent-Goal-Decision-Information) model to support the early and late requirements for the development of DWs. Here, the notion of agent refers to the stakeholders of the organization and the dependency among agents refers to the dependencies among stakeholders for fulfilling their organizational goals. The proposed AGDI model also supports three interrelated modeling activities namely, organization modeling, decision modeling and information modeling. Here, early requirements are modeled by performing organization modeling and decision modeling activities, whereas late requirements are modeled by performing information modeling activities. The proposed approach has been illustrated to capture the early and late requirements for the development of a university data warehouse exemplifying our model's ability of supporting its decisional goals by providing decisional information.

기술창업기업의 특허활동이 초기기업 성과에 미치는 영향에 대한 연구 (A study of the Patent-related Activities affecting the Early Stage Company Performance of Technology-based Start-ups)

  • 이형모;김명숙;김응규
    • 벤처창업연구
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    • 제7권3호
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    • pp.45-53
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    • 2012
  • 본 연구는 기술창업기업의 특허활동이 초기기업 성과에 미치는 영향에 대한 연구이다. 기술창업기업은 혁신적인 기술을 바탕으로 새로운 제품 또는 생산방식의 도입과 시장개척을 추구한다는 점에서 지식재산권, 특히 특허권과 밀접하게 관련이 있으며, 그러한 혁신적 기술이 기업 설립과 운영의 핵심적인 역할을 한다는 점에서 기술창업기업에서 특허활동이 가지는 역할에 대한 연구는 중요한 의미가 있다고 볼 수 있다. 기존의 연구들은 기업의 특허활동과 관련하여 정량적인 특허지표를 사용하여 기업 경영성과에 미치는 영향을 파악하는 것이 대부분이어서 기업에서 실제 특허와 관련하여 행해지는 특허활동에 대한 연구는 취약한 실정이었다. 따라서 본 연구를 통해 기술개발지원활동, 권리화 활동, 침해대응활동, 기반활동 등 기업의 특허활동이 신제품개발, 즉 기술성과와 제품성과를 거쳐 경영성과로 이어지는 인과관계를 다음과 같이 검증하였다. 먼저, 특허활동은 기술성과와 제품성과에 긍정적 영향을 미치고 있다. 즉, 특허의 취득과 활용에 관련된 제반활동들이 기업의 신제품개발, 그중에서도 기업의 신기술 개발이나 특허 획득률 등 기술성과에 더 큰 영향을 미치고 있음을 확인하였다. 둘째, 기술성과는 제품성과에 긍정적 영향을 미치고 있으나, 경영성과에는 긍정적 영향을 미치고 있지 않다. 다만, 본 연구의 가설과 모형의 실증분석 결과, 직접적은 아니지만 제품성과를 거쳐 간접적으로 경영성과와 상관관계가 있는 것으로 나타났다. 셋째, 제품성과는 경영성과에 긍정적 영향을 미치고 있다. 결론적으로 특허활동이 기업의 경영성과에 영향을 미치고 있음을 확인하였으며, 기업의 특허나 기술의 개발과 같은 기술성과도 중요하지만 결국 기업에 있어 지속적인 경영성과 창출은 제품성과, 즉 고객이 필요로 하는 제품을 만들어 판매함으로써 가능하다는 것을 재확인할 수 있었다.

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Taedok Science Town and Regional Development : in terms of the Roles and Efforts of Universities and Research Institutes

  • Oh, Deog-Seong
    • 지역연구
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    • 제15권3호
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    • pp.53-68
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    • 1999
  • This study aims to analyze the role of TST for regional development in terms of university-research institutes-industry interaction. In particular, it focuses on the spin-off activities from research institutes and universities and their support mechanisms. This study consists of following three sections. This study consists of following three sections. Firstly, we describe the role and characteristics of research institutes and universities as the foundation of high technology business spin-off activities in the region. Secondly, the mechanisms for active technology transfer and business incubation are identified in terms of university-research institute and industry interaction in TST. Thirdly, important lessons for the development of technopolis are suggested from the view point of experiences of TST.

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Some Physiological Activities Observed from Ethanol Extracts of Germinated Specialty Rough Rice

  • Lee, Youn-Ri;Hwang, In-Guk;Woo, Koan-Sik;Kim, Kee-Jong;Jeong, Heon-Sang
    • Preventive Nutrition and Food Science
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    • 제13권3호
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    • pp.176-181
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    • 2008
  • This study analyzed the some of the physiological activities of 70% ethanol extracts of specialty rough rice ('Goami2', 'Keunnunbyeo', and 'Heugkwangbyeo' rough rice cultivars) before and after germination. The physiological activities of the extracts were analyzed for their inhibition of linoleic acid peroxidation, hydrogen peroxide radical scavenging activity, superoxide dismutase-like activity, xanthine oxidase inhibitory activity, and nitrite scavenging effects. The most active rough rice cultivar was 'Heugkwangbyeo' and germinated 'Heugkwangbyeo' rough rice was more effective than ungerminated rough rice, having higher inhibition activity of linoleic acid peroxidation (1.2-fold), hydrogen peroxide radical scavenging activity (1.4-fold), superoxide dismutase-like activity (1.2-fold), and xanthine oxidase inhibitory activity (1.1-fold). The nitrite scavenging effect was increased after germination (2.1-fold) and decreased as pH increased. According to the results obtained in this study, 70% ethanol extracts from germinated 'Heugkwangbyeo' rough rice can be used for industrial applications such as the functional food materials.

Antioxidant Activities and Total Phenolics of Ethanol Extracts from Several Edible Mushrooms Produced in Korea

  • Choi, Young-Min;Ku, Ja-Bi;Chang, Hoo-Bong;Lee, Jun-Soo
    • Food Science and Biotechnology
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    • 제14권5호
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    • pp.700-703
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    • 2005
  • Eight edible mushrooms grown in Korea were extracted with ethanol at room temperature for 24 hr. The extracts were investigated for their antioxidant activities as measured by 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity and 2,2-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical cation scavenging activities. Among the mushroom extracts evaluated in this study, the ethanolic extracts from Ganoderma lucidum and Pleurotus eryngii showed the greatest potential antioxidant activity, by producing 85 and 88% inhibition in DPPH radical scavenging method and 219 and 165 mg ascorbic acid equivalent antioxidant capacity (AEAC), respectively. Total phenolics and total flavonoids in the ethanolic extracts were determined by spectrophotometric method. Positive correlations were found between total phenolic contents in the extracts and their antioxidant activities, suggesting that phenolic contents in the mushrooms extracts are mainly responsible for their antioxidant activities.

Antioxidant Activities of Korean Propolis

  • Woo, Soon-Ok;Lee, Kwang-Gill;Kweon, Hae-Yong;Yeo, Joo-Hong;Han, Sang-Mi;Lee, Myeong-Ryeol;Lee, Man-Young
    • 한국잠사학회:학술대회논문집
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    • 한국잠사학회 2005년도 제48회 춘계 학술연구 발표회
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    • pp.73-73
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    • 2005
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Overseas Research and Development Activities of Korean ICT enterprises in Emerging Countries

  • Seo, Jeongseon
    • STI Policy Review
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    • 제3권2호
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    • pp.79-91
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    • 2012
  • With the globalisation of the world's economies and the increasing role of multinational corporations in the generation of knowledge, global research and development (R&D) activities in emerging countries are following a new trend. This paper describes case studies of two large companies and discussion of the motives (demand vs. supply) and tasks (demand-driven vs. supply-driven) of R&D activities outside their home country. This work is based on an analysis of four overseas R&D units of two Korean ICT companies - here, ICT refers to goods and services in the information technology and communication technology fields - in India and China. The research findings are as follows: (1) The overseas R&D activities of Korean ICT enterprises in emerging countries may be driven by a combination of demand and supply factors of host countries; and (2) Korean overseas R&D centres in emerging countries may need to carry out both demand- and supply-driven tasks in view of the overlap between demand and supply factors of the host countries. Based on the results of this research, the following policy implications can be drawn for encouraging more effective overseas R&D activities of Korean enterprises in emerging countries. First, the government needs to expand the support systems so that enterprises can manage local R&D centres more effectively and actively use the variety of local support systems and useful information. Second, the government needs to expand the support systems so that the overseas R&D centres of Korean enterprises revitalise collaborations with locally excellent universities and research institutions.

사마귀류의 추출물을 이용한 항산화활성 및 COX-2 promoter 활성 억제효과 비교 (Comparison of In Vitro Antioxidant Activities and Cox-2 Promoter Inhibitory Activities Using Statilia maculata (Thunberg), Tenodera angustipennis Saussure and Tenodera aridifolia (Stoll) Extracts)

  • 허진철;박자영;안상미;김효숙;우상욱;최원식;황재삼;강석우;황석조;윤치영;권택규;이상한
    • 한국작물학회:학술대회논문집
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    • 한국작물학회 2006년도 한국약용작물학회 공동춘계학술발표회
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    • pp.472-473
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    • 2006
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