• Title/Summary/Keyword: 전자개시점

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Detection of the Specific DNA-binding Proteins for the Aphid rRNA (진딧물 rRNA 유전장에 특이적으로 결합하는 단백질 탐색)

  • O-Yu Kwon;Dong-Hee Lee;Tae-Young Kwon
    • Korean journal of applied entomology
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    • v.34 no.2
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    • pp.100-105
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    • 1995
  • A whole body extract (WBE), a crude nuclear fraction, of aphids was prepared and used to identify the proteins which bound specifically to 5'-upstream regions of the transcription initiation site of the aphid ribosomal RNA gene (rDNA). While DNA fragment (-263/-195) was bound by only one specific 53 kDa protein, two DNA fragments, A(-194/23) and B(-393/-264), were commonly bound by three proteins (52 kDa, 50 kDa and 40 kDa). It was also revealed that the formation of he DNA-protein complex requires a cation.

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A Study of Electronic Records Folder Management (전자기록철의 구조와 관리방안 - 영국 ERMS 표준을 중심으로 -)

  • Seol, Moon-Won;Cheon, Kwon-Ju
    • Journal of Korean Society of Archives and Records Management
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    • v.5 no.2
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    • pp.49-72
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    • 2005
  • This study aims to analyze the structures of electronic records classification and suggest managing requirements for electronic folder as basic entity for ERM. This present study begins with analyzing the various types of electronic folders based on the Requirements for Electronic Records Management Systems: Functional Requirements of U.K. It designs some examples of classification structures for clarifying the meaning of the electronic folders, components and markers. Finally, it analyses some implications for korean environments including application of electronic folder concept, principles of folder open and closure, and introduction of electronic part entity for efficient folder management.

Case Study on the Mobile Number Portability in Major Countries and Implications (주요국 이동전화 번호이동성 동향 및 시사점)

  • Lee, J.Y.
    • Electronics and Telecommunications Trends
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    • v.17 no.4 s.76
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    • pp.39-50
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    • 2002
  • 번호이동성은 전화가입자가 사업자, 지역 및 서비스를 바꾸어도 기존에 사용하고 있는 자신의 전화번호를 그대로 유지할 수 있도록 하는 제도이다. 경쟁적인 측면에서 이동전화 번호이동성은 로밍 서비스와 함께 이동전화시장의 소매 가입부문의 경쟁을 촉진할 수 있다. 우리나라의 경우 2001년 1월 8일에 개정된 전기통신사업법에서 번호이동성의 국내 도입과 관련된 사항들을 규정하였다. 유선전화 번호이동성의 경우 2003년 말부터 구현이 가능한 지역부터 제공할 예정이며, 이동전화 번호이동성의 경우 3G 서비스부터 먼저 실시할 계획으로 복수의 사업자가 3G 서비스를 개시한 이후 6개월 이내부터 도입할 예정이다. 본 연구에서는 이동전화 번호이동성의 도입에 가장 적극적인 유럽의 주요 국가들과 호주의 사례를 검토하여 국내 이동전화 번호이동성 정책의 수립에 적용될 수 있는 시사점을 도출하고자 한다.

Building Corporate Information Governance to Prepare in Case of Litigation - Practical Implications of Sedona Conference Principles of Information Governance - (기업 소송에 대비한 정보거버넌스의 구축 방안 - 세도나 정보거버넌스 원칙을 중심으로 -)

  • Seol, Moon-Won
    • Journal of Korean Library and Information Science Society
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    • v.46 no.4
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    • pp.325-354
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    • 2015
  • Corporate information has great value, but also poses great risk. Information governance is an organization's coordinated, inter-disciplinary approach to satisfying information compliance requirements and managing information risks while optimizing information value. This study aims to suggest the directions of implementing information governance in business firms based on analyses of Sedona Conference Principles of Information Governance. After analysing and reformulating the principles into control standards, and they are investigated and interpreted in terms of practicing information governance.

Current Status and Prospect of WiBro Market (WiBro 시장 현황 및 전망)

  • Seok, W.H.;LEE, K.S.;Song, Y.K.
    • Electronics and Telecommunications Trends
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    • v.26 no.4
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    • pp.165-174
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    • 2011
  • 삼성전자와 한국전자통신연구원이 공동으로 기술개발에 성공하여 2006년 6월 국내에서 세계 최초로 서비스를 개시한 WiBro는 최대 전송속도 하향 75Mbps($2{\times}2$ MIMO)/상향 50Mbps($1{\times}n$ MIMO), 시속 250km/h로 이동하면서 사용할 수 있는 기술이다. 2011년 1분기 기준 전세계 90개국 195개 사업자가 WiBro 서비스를 제공 또는 준비 중인데, 최근 대규모 WiBro 사업자인 러시아 Yota와 미국 Clearwire가 LTE로의 전환 가능성을 시사하는 등 글로벌 WiBro 사업에 대한 위기감이 나타나고 있다. 본 고에서는 국내외의 WiBro의 시장 현황 및 전망을 살펴보고, 국내로의 시사점을 모색해보고자 한다.

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A Study on the Improvement Direction through the Analysis of the Legal System and Current Process of KONEPS (국가종합전자조달시스템의 제도 및 프로세스 고찰을 통한 개선 방향 연구)

  • Kim, Sang-Min;Lee, Hyun-Soo
    • Journal of Digital Convergence
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    • v.15 no.11
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    • pp.23-35
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    • 2017
  • Since the beginning of 2002, KONEPS(Korea ON-line E-Procurement System) which is known with GePS(Government e-Procurement Service), has become a significant role in Korea public procurement service. This paper focuses on the amendments of the related laws and the practical improvement of inconveniences and inefficiencies in user's' position during the use of KONEPS. We analyzed the case of government procurement by major countries, the detailed process and function of KONEPS, and confirmed the revised procurement laws since the commencement of KONEPS. When a user of KONEPS makes an online purchase at the g2b shopping mall to purchase procurement goods, we analyzed focused on the inconvenience of option selection, user feedback after purchasing, unification of the purchase procedure, compared with general online shopping purchase. This paper suggests practical ways to improve the inconveniences and inefficiencies that arise in the process of procurement and use from KONEPS. It is necessary to study on the construction contracts and the empirical studies based on the questionnaire on the functions of procurement law and research model for the cases used in this study in the future.

Synthesis and Their Properties of PP Graft Copolymers by E-beam Radiation and Vapor Phase Reaction (전자선 조사 기상 반응에 의한 PP 기재 공중합체의 합성과 특성)

  • 황택성;박진원;이재천
    • Polymer(Korea)
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    • v.26 no.3
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    • pp.287-292
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    • 2002
  • Graft copolymerization of styrene and glycidyl methacrylate (GMA) to the peroxidized polypropylene (PP) fabric with E-beam in $O_2$ atmosphere was carried out in vapor phase with benzoyl peroxide (BPO) as an initiator. The degree of grafting of copolymers was increased with the increase of the reaction temperature and the highest degree of grafting was obtained at $70^{\circ}C$ with styrene, and at $80^{\circ}C$ with GMA. The highest degree of grafting of styrene grafted PP according to reaction time was higher than that of GMA grafted PP. In vapor phase graft polymerization, the degree of grafting of copolymers according to water composition in monomer mixture was effected by the boiling temperature of monomers.

Gelatinization Properties of Waxy Black Rice Starch (찰흑미 전분의 호화 특성)

  • Choi, Gyeong-Cheol;Na, Hwan-Sik;Oh, Geum-Soon;Kim, Sung-Kon;Kim, Kwan
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.34 no.1
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    • pp.87-92
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    • 2005
  • This study was investigated to examine gelatinization properties of waxy black rice starches. X-ray diffraction patterns in raw starches showed traditional A type of cereals. The crystalline regions of both black rice and Shinsunchalbyeo starches disappeared when temperature increased to $65^{\circ}C$ where the crystalline regions of two starches changed to amorphous ones. Scanning Electron Microscope showed that granule type of Shinsunchalbyeo starch was more collapsed compared to that of black rice starch heated at 6$0^{\circ}C$. Gelatinization in both samples completed when samples were heated at 63$^{\circ}C$. The results by Differential Scanning Calorimetry (DSC) revealed that gelatinization patterns were similar in both samples. In Rapid Visco Analyzer examination, there was no difference in peak viscosity, breakdown, final viscosity and setback between Shinsunchalbyeo and waxy black rice starches.

Effect of Herbicide Paraquat on NAD(H)-Redox-cycle (제초제 Paraquat의 NAD(H) 산화환원에 대한 영향)

  • Kim Mi-Lim;Choi Kyung-Ho
    • Journal of Life Science
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    • v.15 no.2 s.69
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    • pp.304-310
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    • 2005
  • This study was carried out to investigate the effect of herbicide paraquat (1,1-dimethyl-4,4-bipyridilium dichloride) on the electron transport system of the cell. When actively growing cells of bacteria were exposed to the 1.0 mM paraquat, more than $50\%$ of the cells were killed at 0 hour. But specific activities of superoxide dismutase (SOD) were not changed at 0 hour of paraquat treatment. Oxido-reductions of NAD (H) by the suspension of bacterial membtane, rat mithochondria and NAD-dependent dehydrogenase were accelerated by paraquat treatment.

Properties of Rice Flour Prepared with Roll Mill and Pin Mill after Tempering (조질 후 Roll Mill과 Pin Mill의 제분 및 쌀가루의 특성)

  • 김형열;이병영;유효숙;최중경;함승시
    • Food Science and Preservation
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    • v.6 no.3
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    • pp.313-318
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    • 1999
  • The Properties of rice flour and consumed electricity to make rice flour were compared among three different process ; 1. roll mill after soaking rice in water, 2. roll mill after tempering, 3. try pin mill. When rice was milled by roll mill and pin-milled after tempering for 10 hrs(TRPMR), consumed electricity and moisture content of rice flour were the least. Particle size of rice flour prepared with TRPMR was 87.4% of 100 mesh or more which was the highest number among the rice flour prepared using different processes. Gelatinization temperature of the rice flour was 63.2$^{\circ}C$ and was 1.3$^{\circ}C$ lower than that of rice flour prepared with other processes. Viscosity of the rice flour prepared by TRPMR was the least. Whiteness of the rice flour prepared by TRPMR was similar to that of wheat flour.

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