• Title/Summary/Keyword: e-Resources

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Effect of Jasmonic Acid on the Root Growth and the Eleutheroside Accumulation in the Adventitious Root Culture of Eleutherococcus senticosus (가시오갈피나무 부정근(不定根) 배양(培養)에서 부정근(不定根)의 생장(生長)과 Eleutheroside유(類)의 생산(生産)에 미치는 Jasmonic acid처리(處理)의 영향)

  • Ahn, Jin-Kwon;Lee, Wi-Young;Park, Eung-Jun;Park, Young-Ki
    • Journal of Korean Society of Forest Science
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    • v.97 no.3
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    • pp.249-254
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    • 2008
  • This study was carried out to investigate the dose-dependent effect of jasmonic acid on both the adventitious root growth and the accumulation of various eleutherosides in the Eleutherococcus senticosus bioreactor culture. The highest biomass production (4.6 g DW/L) was observed in the absence of jasmonic acid and the root growth was significantly decreased by increasing the jasmonic acid concentration. However, jasmonic acid stimulated the production of both eleutheroside B, E and $E_1$. The highest level of eleutheroside B and E ($476.3{\mu}g/g\;DW$ and $676.0{\mu}g/g\;DW$) was obtained by 0.5 mg/L jasmonic acid treatment, while eleutheroside $E_1$ was accumulated at the highest level by 0.01 mg/L jasmonic acid treatment. The highest content of total eleutheroside was $2468.6{\mu}g/L$ when 0.01 mg/L jasmonic acid was applied. In addition, when the adventitious roots were cultured with 0.01 mg/L jasmonic acid, the highest levels of eleutheroside B, E and $E_1$ were observed at the 6th, 8th and 4th day of culture, respectively.

A Study on a Model of University Information Systems for e-Business Era (e-비즈니스 시대의 대학정보시스템 구축 모델에 관한 연구: K 대학교 사례를 중심으로)

  • Kwon Moon Taek
    • Journal of Information Technology Applications and Management
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    • v.11 no.4
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    • pp.133-145
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    • 2004
  • The two main purposes of this paper are to 1) investigate critical components of university information systems for information resources management, 2) develop a comprehensive framework model of university information systems for e-Business Era. Through a literature review and by employing group decision making techniques with managers of K University, critical components for developing university information systems were identified. The critical components of university information systems are 1) academic affaires. 2) general administration. (3) research administration. (4) information services. (5) management support, (6) cyber education. (7) knowledge management, (8) e-library. (9) mobile service. and (10) IT infrastructures. In the second stage. by employing IT experts in K University and other institutes. a comprehensive framework of university information systems for e-Business era was developed. The comprehensive framework shows that major components for university information resources management are (1) information infrastructure. (2) common operating environments. (3) applications/information services. The results of this study expect to help managers. who are in charge of university information systems. plan to develop information systems based on the framework proposed in this paper.

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Improvement of Hydraulic Parameters for QUAL2E Model (QUAL2E 모형에 대한 수리인자의 개선)

  • Kim, Sang-Ho;Lee, Eul-Rae
    • Proceedings of the Korea Water Resources Association Conference
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    • 2006.05a
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    • pp.436-440
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    • 2006
  • 하천에 대한 수질해석을 위해 범용적으로 사용되는 QUAL2E 모형은 대상구간에 유사한 수리 특성을 가지는 구간(reach)을 설정하여 주어진 유량에 대해 동일한 수심과 유속을 가지도록 구성되어 있다. 하지만 실제 자연하도에서는 여러 가지 수공구조물이나 지형변화로 인해 흐름변화가 매우 다양하게 발생하고 있다. 본 연구에서는 범용적으로 사용되고 있는 DWOPER 모형이나 HEC-RAS 모형과 같은 1차원 수리해석모형의 부등류 모의결과를 QUAL2E 모형에서 활용함으로써 실제 하천에서 발생하는 국부적인 흐름특성을 수질해석에 반영할 수 있는 수리연계모듈을 개발하였으며, 이를 한강의 팔당댐 하류구간에 대해 적용하였다.

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A Design of e-HRM System for Small and Medium Eenterprises Personnel Management (중소기업형 인사관리를 위한 e-HRM 시스템 설계)

  • Sung, Kyung
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2008.10a
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    • pp.810-813
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    • 2008
  • As you suddenly enlarged importance recognition of human traces capital as the sources of company competitiveness in the digital times, you reached, and necessity of human traces resources management system to more efficiently manage human traces resources was increased that you were competitive. A developed a small and medium enterprises e-HRM prototype system to reflect decision making to be effective by a weight grant-based evaluation management of various viewpoints and AHP at these papers as you used BSC as you applied performance rating criteria.

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QUAL2E 모형

  • 오경두;구자용
    • Proceedings of the Korea Water Resources Association Conference
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    • 1993.02a
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    • pp.401-493
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    • 1993
  • 하천 수질관리 실무에 가장 널리 사용되고 있는 QUAL2-E 모형에 대한 이론적 배경과 입력 자료의 준비, 결과의 분석 및 활용에 이르는 모형 적용상의 제반 과정에 대한 강의와 토론 후에 실습을 통하여 모형의 사용방법을 습득하도록 한다. 1. 수질오염 예측을 위한 이론적 기본틀 2. 우리나라 실무에서 사용중인 수질 관련 모형과 문제점 3. QUAL2-E 모형의 이론적 배경 3.1 모형의 구성 개념 3.2 하천 수리학적 특성 3.3 지형-기상학적 특성 3.4 수질 관련 인자 간의 기능적 상호관계 4. QUAL2-E 모형의 적용 절차 4.1 적용 가능한 수체 4.2 대상 오염물질(15종류) 4.3 수질예측과정 Flow Chart 4.4 입력자료의 구성 4.5 출력자료의 구성 5. QUAL2-E 모형의 실습

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DNA Barcoding of Eurydice longiantennata (Isopoda, Cymothooidea, Cirolanidae) from South Korea

  • Kim, Sung Hoon;Choi, Hyun Ki;Kim, Jong Guk
    • Animal Systematics, Evolution and Diversity
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    • v.37 no.4
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    • pp.354-357
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    • 2021
  • In Korean waters, the cirolanid isopod, Eurydice longiantennata Nunomura and Ikehara, 1985 has been reported only from the subtidal zone of Jeju island. We obtained the mitochondrial cytochrome c oxidase subunit I (COI) sequences of this species and determined the DNA barcoding data of E. longiantennata based on a genetic comparison of E. longiantennata and its congeners. The intra-specific genetic distance between the three COI sequences of E. longiantennata ranged from 0 to 0.6%. The inter-specific distances between E. longiantennata and other cirolanid isopods ranged from 24 to 33.2%. In this study, we provided the DNA information of E. longiantennata with a morphological diagnosis and images of the species.

A Study on the Re-establishment of Commercial Arbitration's Role Based on the Difference between e-Trade and e-Commerce (전자무역과 전자상거래의 경계 확인 및 중재 역할의 재정립 방안)

  • Park, Moon-Suh
    • Journal of Arbitration Studies
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    • v.20 no.1
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    • pp.87-107
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    • 2010
  • This paper reviews the distinctive characteristics between e-Trade and e-Commerce in view of commercial arbitration in Korea and explores several improvements for the role of commercial arbitration. As the volume of e-Trade and e-Commerce has expanded day by day, there will be more disputes between traders no matter where the commerce may occur. But despite increasing of the disputes relating to e-Commerce transaction, it seems that the role of commercial arbitration has been shrunk instead. Korea needs to improve the role of commercial arbitration in order to meet and lead the age of u-Trade Hub(u-TH) service and to adopt an offensive or active attitude when arbitration used. Moreover, it is suggested that the competence of arbitration should not only be intensified more precisely but also be redesigned more systematically. Korea should take advantage of arbitration resources actively such as arbitrators as human resource and experiences as knowledge assets and also prepare the policy for sharing those arbitration resources between arbitrators more effectively.

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The Awareness and Demand of Teacher-Librarian for the Composition of E-book Collection: Based on Analysis of the E-books Provided by Busan Digital Library System (전자책 장서 구성에 대한 사서교사의 인식과 요구 - 부산 독서교육종합시스템 전자책 분석을 중심으로 -)

  • Hyo-Jeong, Jang;Jin-Gyeong, Jeong;Yong-Jae, Lee
    • Journal of the Korean Society for Library and Information Science
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    • v.56 no.4
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    • pp.399-430
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    • 2022
  • The purpose of this study is to identify the problems of the e-book composition provided by the Comprehensive Reading Education Support System and to propose a service improvement plan related to the establishment of e-books in school libraries as educational resources based on practical issues and perceptions experienced by teacher-librarians. As a research method, the composition of the collection of 3,002 e-books supported by the Busan Comprehensive Reading Education Support System as a reading education platform of the school library was analyzed based on the Korean Decimal Classification. Based on this, two focus group interviews (FGI) were conducted with 4 elementary teacher-librarians and 5 secondary teacher-librarians working in Busan. The result of this study can be used as basic data to support students' reading activities using e-books as educational resources and to form an efficient e-book collection in school library.

Genetic Variation in the Endemic Rare Tree Species, Juniperus chinensis var. sargentii HENRY (희귀(稀貴) 수종(樹種) 눈향나무 집단(集團)의 동위효소(同位酵素) 분석(分析)에 의한 유전변이(遺傳變異) 연구(硏究))

  • Yang Byeung-Hoon;Kwon Hae-Yun;Han Sang-Don
    • Korean Journal of Plant Resources
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    • v.19 no.1
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    • pp.76-82
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    • 2006
  • Genetic variation of two Juniperus chinensis var. sargentii populations in Mt. Seorak and Mt. Halla was investigated by isozyme analysis at reproducible 11 loci of 7 isozyme systems(Aat-1, Aat-2, Gdh, Idh, Lap, Mdh-1, Mdh-2, Mdh-3, 6Pgd, Pgi-1, and Pgi-2), of which 7 loci were polymorphic. The levels of genetic diversity of two populations were A=2.2, $A_e=1.61,\;P_{95}=54.5,\;H_{o}=0.179,\;H_e=0.287$(Mt. Seorak population) and A=2.1, $A_e=1.48,\;P_{95}=63.6,\;H_{o}=0.270,\;H_e=0.250$(Mt. Halla population), respectively. These values were similar to and/or somewhat higher than those observed in other Korean native conifers. Moderately low degree of genetic differentiation was observed between 2 analyzed populations ($F_{ST}=0.039$). Heterozygosity of the population in Mt. Seorak was significantly lower than expected, and much high level of inbreeding coefficient(F=0.376) was observed. Considering the limited population size and distribution range of the population, the population seemed to be influenced by inbreeding and/or random genetic drift, Consequently, Mt. Seorak population should be considered to be a more important candidate for the conservation of J. chinensis var. sargentii.