• Title/Summary/Keyword: EIC

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E.I.C. 통합 기술확보

  • 김성환
    • 전기의세계
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    • v.39 no.11
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    • pp.16-33
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    • 1990
  • 국내 공장자동화에 필요로하는 EIC통합기술을 산학연 공동개발을 통하여 100% 기술을 확보함으로서 국내에서도 국제 경쟁력을 갖춘 PLANT 수출기반을 구축할 수 있으며 향후 FACTORY AUTOMATION 제어 SYSTEM을 표준화함으로써 가격 및 품질관리 측면에서 대외 경쟁력을 갖춘 SYSTE 보급이 기대된다.

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Prioritizing Human Use Antibiotics for Environmental Health Management and Estimating Their Environmental Concentrations in Korean Waterway (인체용 항생제의 우선관리대상 선정과 물환경 중 오염농도 추정)

  • Kim, Myung-Hyun;Park, Jeong-Im;Kim, Young-Hee;Choi, Kyung-Ho
    • Journal of Environmental Health Sciences
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    • v.32 no.5 s.92
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    • pp.462-468
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    • 2006
  • Antibiotics are manufactured and used for specific physiological functions, hence they may exert adverse ecological consequences when they are in contact with nontarget organisms. In the last decade, many reports have been made on the occurrences of various antibiotic compounds in surface water, and their potential impact to the environment has become an increasing concern. This study was conducted to prioritize antibiotic substances with potential environment risk in Korea. Human use antibiotics with an EIC (Expected Introduction Concentration) value greater than $1{\mu}g/l$, US FDA's action limit criteria, were selected. In order to calculate a worst-case EIC for each substance, annual production volume (in kg) of each antibiotic substance was derived using the Korea Pharmaceutical Manufacturers Association (KPMA)'s monetary database. Sixteen substances were preliminarily selected. The EICs of the 16 antibiotic substances were refined with the excretion rate of the parent substances. Ten antibiotic substances were identified to have EIC-corrected greater than $1{\mu}g/l$, which include Amoxicillin ($15.8{\mu}g/l$), Cefaclor ($10.1{\mu}/l$), Roxithromycin ($4.2{\mu}g/l$), Cephradine ($4.5{\mu}g/l$), Cefatrizine ($2.6{\mu}g/l$), Cefadroxil ($3.3{\mu}g/l$), Aztreonam ($2.3{\mu}g/l$), Ceftazidime ($2.8{\mu}g/l$), Ribostamycin ($1.3{\mu}g/l$), and Ceftezole ($1.3{\mu}g/l$). Additional risk assessments for these antibiotic substances are suggested.

Analysis on the General Operations, Usages, and User Satisfaction of the Electronic Information Centers in the Selected University Libraries in Daegu and Kyoungpook Area (대구·경북 지역 5개 대학도서관 전자정보실의 운영현황과 이용행태, 이용자만족도 분석)

  • Cho, Min-Young;Oh, Dong-Geun
    • Journal of Information Management
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    • v.43 no.4
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    • pp.49-68
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    • 2012
  • This study analyzes the general operations of the current services and usages, and the perceptions on the service quality and satisfaction of the 480 users of the electronic information centers (EIC) in the 5 selected university libraries in Daegu and Kyoungpook area. Each libraries provide various levels of their services. Service quality is supposed to be comprised of 3 dimensions of facilities and equipments, contents, and staff. Each of three dimensions influences statistically significantly the user satisfaction of the EIC. Users are satisfied with the facilities and equipments highly. Users in each libraries show statistically different satisfactions in the dimensions of facilities and equipments, and contents, except staff dimensions. Users of each universities show different overall satisfactions on the EICs also.

The Effects of Secondary School Teachers' Efforts on Instructional Improvement on Teacher Efficacy: Focused on Comparison among Types of School Climate (중등교사의 수업개선 노력이 교사 효능감에 미치는 영향: 학교풍토 유형 간 비교를 중심으로)

  • Choi, Won Seok;Kil, Hyeji
    • The Journal of the Korea Contents Association
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    • v.19 no.5
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    • pp.472-483
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    • 2019
  • This study purposed to analyze how teacher experience of instructional change (EIC), teacher morale (TM), and school climate (SC) mediate or moderate the relationship between teacher efforts on instructional improvement (EII) and teacher efficacy (TE). For the purpose, the 6th year data of Gyeonggi Education Panel Study (GEPS) which was administered in 2017 for the 9th grade students and their teachers from 197 middle schools in Gyeonggi Province was used. As results, the mediation effects of EIC on the link between EII and TE was found only under the innovative climate. The moderation effects of TM on the connection between EIC and TE were appeared in both of the permissive and the innovative climate. Finally, the moderated mediation effects of the TM in the innovative climate were bigger rather than in the permissive climate.

Design and Implementation of Real-Time Controllers of an Enhanced Distributed Control System with Embedded TM/TC (TM/TC를 탑재한 분산제어 시스템의 실시간 제어기 설계와 구현)

  • Kim, Jin-Tae;Park, In-Kap
    • Journal of IKEEE
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    • v.3 no.1 s.4
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    • pp.57-68
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    • 1999
  • DCS require a remote supervisory control that applies a various applications with a period of integrated EIC(electric instrument control) using distributed computer network. Until now, DCS has leaved something to be desired in guaranteeing real-time required in remote site plant. In this paper, each controller is designed by implementing the controller suiting with an wide area to enhance the hardware of existing PRS controller and GWS, RPS and SRS, for the efficiency of TM/TC system, Therefore, real-time emphasizes on the communication processing time, rate of system load analyzed and validity was evaluated for a each implemented controllers.

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A Study of Microstrip Line Fed QMSA Characteristics (마이크로스트립 라인 급전 QMSA의 특성 연구)

  • Kim, Eun-Yong;Park, Ok-Dong;Ryu, Hyun;Lee, Nam-Yul;Park, Sung-Kyo;Park, Chong-Baek
    • Proceedings of the IEEK Conference
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    • 1999.06a
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    • pp.861-864
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    • 1999
  • We designed and fabricated microstrip line fed QMSAs(Quarter-Wavelength Microstrip Antenna) for 850〔MHz〕 band on the CGP-500 Copper-clad Laminates substrate (CHUKOH company) with $\varepsilon$$_{r}$=2.6, H=1.6〔mm〕( $\pm$0.08), where the width of the radiation patch is identical with that of the ground plane. The resonant frequencies and the return losses were measured by reducing the PSW(Partially Shorted Width) to 0〔mm〕, step by step, when the microstrip line width was 1.47〔mm〕, 2.93〔mm〕and 4.4〔mm〕separately. As a result, a good characterized antenna with a 11% reduced resonant length and a return loss -29.44〔㏈〕 was obtained when the total PSW was in the range of 70% of radiated patch width, compared to the conventional QMSA.A.

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포항제철 기술연구소와 미래의 제철 기술

  • 이주강;권영섭
    • ICROS
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    • v.1 no.1
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    • pp.39-45
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    • 1995
  • 생산량의 증대, 품질의 균일화, 생산 원가의 절감, 조업인원의 합리화를 위한 기술개발경쟁에서 기술우위를 확보하는 것이 국경을 초월한 무한경쟁체제에서 포항제철소가 국제경쟁력을 확보할 수 있으며, 포항제철 기술연구소가 앞으로 추진해 나아가야 할 방향일 것이다. 이를 위해서 우리 연구소, 특히 제어.계측.자동화 연구에 치중하고 있는 시스템연구팀은 공정 라인의 "no touch operation"을 구현하기 위해 artificial intelligence 등의 기술을 바탕으로 전 공정의 자동화, EIC 통합, 설비진단 자동화, 품질진단 자동화를 이루어 나가는 방향으로 나가고 있다.

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Development of Signal Monitoring and Analyzing System for Down Coiler in Rolling Process (열연 Down Coiler 센서 및 제어신호 시분석 시스템 개발)

  • 손붕호;임은섭
    • 제어로봇시스템학회:학술대회논문집
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    • 2000.10a
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    • pp.132-132
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    • 2000
  • The reliability of EIC systems in hot rolling mill is indispensable and very important in order to maintain stable production. Signals obtained from sensors and control system should be analyzed to monitor the condition of down coiler in hot rolling mill. We develope a monitoring system of down coiler which is composed of three parts (1) data acquisition and MMI (2) signal processing and analyzing, and (3) automatic data saving. Also it is designed to enable to inform users the abnormal conditions of down coiler. This developed system is expected to make it possible to reduce long downtime, secure high facility precision, and maintain high control levels.

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