• Title/Summary/Keyword: draft standard

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A Study on Airworthiness Certification Standards for Military Small Rotary-Wing Unmanned Aerial Vehicles (군용 소형 회전익무인기 감항인증기준에 대한 연구)

  • Yang, Junmo;Lee, Sangchul
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.29 no.2
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    • pp.78-83
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    • 2021
  • In modern society, the use of small rotary-wing unmanned aerial vehicles such as drones is increasing. As the military considers tactics using drones, demand for drones is increasing. However, there is still no airworthiness certification standard for drones for safety. In this paper, we proposed airworthiness certification standards for small rotorcraft unmanned aerial vehicles based on CS-LURS in Europe and STANG-4703, 4738 (draft) of the North Atlantic Treaty Organization. In addition, airworthiness certification standards have been strengthened through the case of unmanned aerial vehicle accidents in operation by the Korean military. The airworthiness certification standards for small rotary-wing unmanned aerial vehicles will be supplemented through a demonstration project.

Development of Biological Criteria for Water Quality Assessment using Benthic Diatoms (부착돌말류를 이용한 생물학적 수질평가지표 개발)

  • Noh, Seongyou;Byeon, Myeongseop;Kim, Miah;Lee, Jaekwan
    • Journal of Korean Society on Water Environment
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    • v.25 no.6
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    • pp.879-885
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    • 2009
  • The present study was carried out to develop biological criteria for water quality assessment using benthic diatoms. Selecting of the indicator diatoms, three parameters were considered: broad distribution (180 taxa occurred over 3% at upper level), species abundance (158 taxa occurred over $1.5{\times}10^5cells/cm^2$), and sensitivity (184 taxa occurred more than once as 1st and 2nd dominant species). Overall, total 208 taxa were selected, including 38 varieties, 170 species, 34 genera, 9 families, 3 orders, and 1 phylum. The most dominant taxonomic group (family) was Naviculaceae (52%), followed by Diatomaceae (15%), Nitzschiaceae (12%) and Achnantaceae (11%). COD and TP were proposed as new water quality standards (draft) to improve the existing BOD standard and to manage and control efficiently non-biodegradable organic pollutants. With this regard, we used TP standard (draft) in developing biological water quality criteria for diatoms. TP standards (draft) proposed as Ia = 0.02 mg/L or less, Ib = 0.05 mg/L or less, II = 0.1 mg/L or less, III = 0.2 mg/L or less, IV = 0.4 mg/L or less, V = 0.6 mg/L or less and VI = above 0.6 mg/L. Biological assessment system (4 class system) was developed and proposed for diatom using modified Tropic Diatom Index (TDI). Biological assessment of TDI appear B grade (Good).

A Pilot Study on the Standard Model for the Classification of Database (데이터베이스 분류 표준화를 위한 기초연구)

  • 고영만
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.7 no.1
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    • pp.193-230
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    • 1994
  • The systematic classification of database is much debated issue currently in telecommunication industry. Nevertheless, the attempt to build the systematic model is nowadays nowhere to be found. The purpose of this study is to gain a general overview relating to this subject and to make out a draft for the development of standard model. Relating th the study for the databases classification, it was classified from the 9 points of view: manufacturer, subject, processed form (level), (re)presented form, language, completion state and updating cycle, retrieval method, communication media, and use.

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하이브리드 미디어 전송을 위한 MMT 기술 표준화 현황과 전망

  • Seo, Gwang-Deok;Kim, Chang-Gi;Yu, Jeong-Ju
    • Information and Communications Magazine
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    • v.31 no.4
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    • pp.70-78
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    • 2014
  • MMT (MPEG Media Transport) 기술은 지난 4년여 기간 동안 ISO MPEG의 표준화 과정을 거치면서 현재 FDIS (Final Draft for International Standard) 수준까지 도달하였고, 2014년 3월 스페인 발렌시아에서 개최될 제 108차 MPEG 회의에서 국가 투표 (national ballot)를 거쳐 IS (International Standard)로 승인될 예정이다. 본 고에서는 MMT 기술의 표준화 현황과 세부 기술 사항에 대해 분석한다. 또한, 하이브리드 미디어 전송을 지원하기 위한 MMT 표준기술의 기술적 사양에 대해 설명한다.

Improving Archival Descriptive Standard Based on the Analysis of the Reviews by Archival Communities on RiC-CM Draft (RiC에 대한 기록공동체의 리뷰를 통해 본 기록물 기술표준 개선을 위한 제안)

  • Park, Ziyoung
    • The Korean Journal of Archival Studies
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    • no.54
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    • pp.81-109
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    • 2017
  • This study suggests an analysis of the reviews provided by international archival professionals on the RiC-CM draft published by ICA EGAD. Some implications for the Korean archival management environment were also suggested. Some professional reviews were accessible through the internet. Italian archival professionals held workshops at various levels for the analysis and discussion of the draft. Duranti, the project director of InterPARES, also gave opinions about the draft in cluding the perspective of digital preservation. In the review of Artefactual, the draft was discussed in terms of system implementation. Reed, the director of Recordkeeping Innovation, also gave a feedback based on the record management experiences in Australia. Some implications can be suggested based on these professional opinions. First, we should try to build a test bed for the adoption of RiC to archival description in the Korean environment. Second, a minimum level of data elements that can secure authenticity and integrity will also be needed. Third and lastly, rich authority data for agents and functions related to archival records and records groups are essential to take full advantage of the standard.

A Study on proper domestic external metadata standards (국내에 적합한 외부메타데이터 표준에 관한 연구)

  • Kim, Kye-Hyun;Kim, Hee-Du
    • 한국공간정보시스템학회:학술대회논문집
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    • 1999.06a
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    • pp.193-200
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    • 1999
  • The major purpose of this study was to design a external metadata which fit domestic demands of the digital maps. For designing a standard external metadata reflecting the current trends of the international organizations on standardization, a prelimenary study was made mainly concentrating on the analysis of the standards of the developed countries. For better assessing domestic needs, all the metadata related material of the National Geography Institute were collected and classified based on the NGI's workflow. The external metadata draft was made considering the results from the analysis of the existing NGI material and the draft was also cited some major cores from the ISO standards. Continuous efforts should be made in the future to update the metadata draft based on the opinions from domestic users and the technical trends of the international organizations on standardization.

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Functional Characteristics of PREMO-An ISO Standard for Presentation Environments for Multimedia Objects- (국제 표준 프리모-멀티미디어 객체 표현환경의 기능 특성)

  • Kim, Min-Hong;Kim, Ha-Jin
    • The Transactions of the Korea Information Processing Society
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    • v.3 no.2
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    • pp.399-406
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    • 1996
  • LSO/IEC JTCI/SC24 is responsible for the development and maintenance of computer graphics standards. This subcommittee recognized the need to develop a new graphics standard, and launched a new project named PREMO which stands for Presentation Environment for Multimedia Objects. As the name implies, PREMO is intended to address not only graphics but also multiple media presentation using object concepts and a new formal description techniques. at the time of writhing this paper, Part 1 and Part 2 were in the stage of Committee Draft and Part 3 is a Working Draft. The Part 4 is at an earlier stage within ISO/IEC. This paper is to present the procedures and works taken to develop PREMO.

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Uncertainty of Peroxide Value Determination in Fat in Follow up Formula (성장기용 조제식에 함유된 유지성분의 과산화물가 측정불확도)

  • Kim, Sung-Han;Kwack, Byung-Man;Ahn, Jang-Hyuk;Kong, Un-Young
    • Korean Journal of Food Science and Technology
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    • v.36 no.6
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    • pp.885-892
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    • 2004
  • Peroxide values (PV) of fat from fallow up formula were determined using redox-potentiometric titration method and standard method, which is based on KI oxidation by hydroperoxides and volumetric titration of liberated iodine, and their uncertainties were compared. Uncertainty sources in measurement, such as sample weight, sodium thiosulfate concentration, and titer, were identified and used as parameters for combined standard uncertainty based on Guide to the expression of uncertainty in measurement and Draft EURACHEM/CITAC Guide. Analytical results and combined standard uncertainties of peroxide values (PV) determined by standard burette and potentiometric titrations were $2.05{\pm}0.17\;and\;1.96{\pm}0.07\;meq/kg$, respectively, suggesting potentiometric titration method is suitable for determining PV of fat with low PV, because uncertainty of PV determination obtained by potentiometric titration was lower than that obtained by burette titration.

Korean Standard Draft of the Laboratory Method of Measuring the Airborne Sound Insulation of a Suspended Ceiling (천장속 공간을 공유하는 매단 천장의 실간 공기전달음 차단성능 측정방법의 KS규격화 방안)

  • Yang, Kwan-Seop;Lee, Keun-Hee;Kim, Sun-Woo
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2002.11b
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    • pp.956-960
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    • 2002
  • Offices and other multipurpose buildings commonly have suspended ceilings installed over room dividing wall. But Korean Standards don't include any code on test methods and test facility of the suspended ceiling system. Therefore, test methods and test facility from ISO and ASTM have been used for evaluating sound performance in domestic so fu. In this study, Korean Standards draft on test methods and test facility of suspended ceiling system and materials is proposed on the basis of ISO and ASTM.

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