• 제목/요약/키워드: Line Standards

검색결과 539건 처리시간 0.024초

사서직 업무변화에 관한 연구 (A Study of Evolution of the Librarian Job)

  • 안인자
    • 한국비블리아학회지
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    • 제16권1호
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    • pp.233-246
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    • 2005
  • 사서직의 업무변화는 도서관패러다임의 변화와 직결된다. 이러한 변화를 자각하고, 신속히 업무에 반영하는 것은 사서직의 경쟁력과 직결된 문제이다. 본 연구에서는 도서관법과 기준, 담당부서 및 정책, 직무분석을 통하여 1970-80년대의 업무내용과 2000년대의 업무를 비교분석하였다. 결과 사서업무는 관리업무의 최소화, 이용자그룹의 다양화, 세분화에 맞추어 자료구비와 전문적 정보서비스를 마련하고 있다. 나아가 환경변화에 따른 디지털도서관업무의 급증에 대비하여 디지털 자료구비, 보존, 원격접근, 공용에 대한 업무가 증가하고 있다.

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구내 정보통신설비를 위한 정책제안과 통합구축모델 설계 (The politic suggestion and the design of integrate-construction model for installation of the residential IT facility.)

  • 강영창;임상출;김선형
    • 한국정보통신학회논문지
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    • 제13권5호
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    • pp.845-853
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    • 2009
  • 본 논문은 정부에서 추진중인 유비쿼터스도시의 성공적 건설을 위하여 공동주택에 설치되는 홈 네트워크설비를 포함한 전기통신설비 및 방송공동수신설비의 기술기준과 초고속 정보통신건물인증제도의 문제점을 알아보고 해결방안으로 주택법령의 주택성능 등급표시 제도보완과 유지관리를 제도화 하기위한 주택법계열의 전면적인 검토 보완 및 개정안을 제시하였다. 또한 기술기준만을 적용한 건축물과 초고속 정보통신건물 인증 2등급 이하 취득 건축물 그리고 상기 해결방안이 법제도화가 되었을 때의 건축물에 대한구내 정보통신선로 통합구축 모델을 각각 설계하여 제시하였다.

순시 정전 시 역률 개선 회로의 동작 특성에 관한 연구 (A Study on the Operational Characteristics of PFC at Instantaneous Power Interrupt)

  • 이해돈;최규하
    • 전력전자학회논문지
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    • 제9권4호
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    • pp.390-396
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    • 2004
  • 최근 설비에 대한 고 역률과 저고조파의 요구가 증가하고 있어 국제적으로 고조파에 대한 규제가 강화되고 있다. 고조파를 줄이고 규제에 적합하기 위하여 역률 개선(PFC) 회로가 일반적으로 사용되어지고 있다. 이러한 역률개선 (PFC)회로의 제어방법으로 중, 대용량 스위칭 전원장치에 가장 적합한 것으로 알려진 평균 전류 제어방식이 가장 많이 사용되어지고 있다. 그러나 순시 정전이 된 후 복전 시 역률개선회로의 스위칭 소자가 빈번하게 파손이 되고있다. 본 논문에서는 이러한 문제점의 원인을 규명하고 해결 방법을 제안하였다.

목포항의 수질 특성(I) - 하계의 유기물 오염과 용존산소를 중심으로 - (The Characteristics of Water Quality in Mokpo Harbour(I) - Centering on organic pollution and dissolved oxygen in summer-)

  • 김광수
    • 해양환경안전학회지
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    • 제3권1호
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    • pp.99-109
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    • 1997
  • The in situ observations and the seawater analyses were conducted in July and August, 1996 for the purpose of describing the characteristics of organic pollution, dissolved oxygen distributions, and the evaluation of water quality in Mokpo harbour. The vertical density distribution of water column was found to be in stable structure with higher water temperature and lower salinity on surface layer at ebb tide in summer. In July, dissolved oxygen was shown to be oversaturated on surface and bottom layers, while in August, which was shown to be oversaturated on surface layer, and to be unsaturated on bottom layer as 68∼93% of saturation percentage. Dissolved oxygen of bottom layer in August was evaluated to be under the regular grades, based on Korean standards of seawater quality. In view of COD, the seawater quality of Mokpo harbour in summer was evaluated to be deteriorated due to organic wastes and graded to be the third class, and TSS of Mokpo harbour in summer was graded to be the second class, based on Korean standards of seawater quality. In particular, COD of surface layer in August was found to be under the regular grades. It is, therefore, necessary to take measures for the control of pollution loads and the proper management of seawater quality in Mokpo harbour. The distribution patterns of DO, COD, VSS and Chlorophyll-a on surface layer along the downstream center line from inner harbour to harbour entrance were similar to one another at ebb tide in August.

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Vacuum Packaging Technology of AC-PDP using Direct-Joint Method

  • Lee, Duck-Jung;Lee, Yun-Hi;Moon, Gwon-Jin;Kim, Jun-Dong;Choi, Won-Do;Lee, Sang-Geun;Jang, Jin;Ju, Byeong-Kwon
    • Journal of Information Display
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    • 제2권4호
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    • pp.34-38
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    • 2001
  • We suggested new PDP packaging technology using the direct joint method, which does not need an exhausting hole and tube. The advantages of this method are simple process, short process time and time panel package. To packaging, we drew the seal line of glass frit by dispenser followed by forming the lump, which provide pumping-out path during the packaging process. And, we have performed a pretreatment of glass frit to reduce the out-gases. After which, both front and rear glass plates were aligned and loaded into vacuum packaging chamber. The 4-inch monochrome AC-PDP was successfully packaged and fully emitted with brightness of 1000 $cd/m^2$. Also, glass frit properties for pretreatment condition was investigated by AES and SEM analyses.

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밀리미터파용 구형 도파관의 단면 치수 변화에 의한 전송 특성 (Transmission Characteristics on Dimensional Tolerances of Millimeter-Wave Rectangular Waveguides)

  • 박경식;김기채;강진섭;김정환
    • 한국전자파학회논문지
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    • 제24권7호
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    • pp.722-729
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    • 2013
  • 본 논문에서는 밀리미터파 대역에서 저손실 전송 선로로 많이 사용되고 있는 구형 도파관의 단면 치수 변화가 전송 특성에 미치는 영향을 검토하였다. 도파관 내부의 그린 함수를 고유 모드 함수 전개법으로 구하고, 도파관 내부에 포스트를 설치한 구조의 내부 임피던스로부터 반사 계수 표현식을 도출하였으며, 도파관의 단면 치수 변화가 반사 계수에 미치는 영향을 검토하였다. 이론 해석의 타당성을 검증하기 위해 반사 계수를 측정하고, 이론치와 비교하였다.

인과순환지도(CLD) 작성을 통한 철도관제업무에 관한 연구 - 철도안전관리체계 기술기준 11.7 철도관제를 중심으로 - (A Study on the Railway Control by Creation of the Causal Loop Diagram- - Centering on railroad safety management system technical standards 11.7 -)

  • 박정수;이상오
    • 한국도시철도학회논문집
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    • 제6권4호
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    • pp.287-298
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    • 2018
  • 본 연구는 철도안전관리체계 기술기준의 11.7 철도관제를 중심으로 철도교통관제사의 다양한 측면에서 업무를 이해하고 실무적 제언을 하고자 한 논문이다. 분석방법으로는 시스템다이내믹스의 소프트적 방법인 인과순환지도를 작성하여 11.7철도관제의 업무를 분석하였다. 그리고 4개 철도운영기관 별 11.7 철도관제를 비교분석 하여 운영기관 별 관제업무의 특징들을 비교하여 철도관제업무의 중요성과 향후 실무적 개선안을 제시하고자 하였다.

Do Oil and Gas Companies Comply with Requirements of IFRS 6?: Evidence from India and Global Companies

  • POSWAL, Dhanraj;CHAUHAN, Pragati
    • The Journal of Asian Finance, Economics and Business
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    • 제8권3호
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    • pp.399-409
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    • 2021
  • This study examines whether oil and gas companies comply with the requirements of the International Financial Reporting Standards (IFRS) 6 on Exploration and Evaluation (E&E) of Mineral Resources. For this purpose, a comprehensive checklist divided into eight different parameters was prepared by including every requirement of IFRS 6. While building on the previous studies, the annual reports of the top five Indian and top five Global companies engaged in this business have been investigated in detail against the checklist using content analysis as the research method. Results show that a majority of the companies (both Indian as well as global companies) have not been complying with the requirements of IFRS 6. In five out of eight parameters the companies have not complied with even half of the requirements. The overall compliance ratio is as low as 41.54 percent and 43.68 percent for Indian and Global companies respectively. While analyzing the non-compliance, it has been observed that despite having distinct accounting standards, different kinds of companies are reporting differently. Thus, it is not in line or consistent with the goal of IFRS i.e., to establish a universal language for the companies to prepare the accounting statements. The research findings identify the exact area of non-compliance while citing the relevant paragraph number of IFRS 6.

고소 작업용 섬유로프의 고정 매듭법에 따른 강도 변화의 해석 및 실험적 연구 (Analysis and Experimental Study of Strength Change according to Fixed Knot Method of Fiber Rope for High Altitude Work)

  • 송상민;김민섭;신대용;임사혁;권오헌;박우림
    • 한국안전학회지
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    • 제37권3호
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    • pp.1-8
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    • 2022
  • Workplace accidents are common while working at elevations. Thus, various safety measures such as safety handrails and horizontal safety nets are implemented to prevent falls. The minimum safety measure is the lifeline installation. However, because its standards have not been clearly established, it is often misused, resulting in inappropriate knot methods that increase the chance of accidents while working at elevations. Therefore, clarifying the appropriate usage methods or criteria for the various lifelines is required in the field. This study proposed an appropriate installation method by experimentally and numerically evaluating the change in strength according to the fixed knot lifeline method. In addition, three knot methods were specified for each material. The results obtained are expected to contribute to lessening falls through the establishment of lifeline installation standards and the development of appropriate parts.

Review of Changing Judging Standards for Bodybuilding and Fitness Competition Category

  • Sang-Hyun Lee
    • International journal of advanced smart convergence
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    • 제12권4호
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    • pp.418-425
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    • 2023
  • This study examined the importance of screening for changing bodybuilding and fitness category. The screening criteria for bodybuilding, the background and reason for the creation of new bodybuilding and fitness items, the screening criteria for new items, and the use of drugs were described. The current bodybuilding gives high marks to excessive muscles and excessive diet conditions, and new bodybuilding category have been newly established in line with the recent global trend of pursuing natural beauty over abnormally excessive muscles, and the screening criteria also prioritize the balance of ideal and overall muscles to fit your height and weight. In addition, fitness events such as physique and bikini are gaining popularity with the establishment because they focus on not excessive muscles and natural elements of the body that ordinary people can challenge. Since athletes as well as ordinary people are using drugs to increase muscles and suffer side effects, IFBB(International Federation of BodyBuilding) and KBBF(Korea Body Building Federation) should consider and improve the current bodybuilding screening standards that avoid excessive muscles, and it is believed that bodybuilding and fitness events will develop only when strict punishment and continuous anti-doping education are carried out.