• Title/Summary/Keyword: Korean Standard

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Case Studies of Comparing EN 954-1 and EN ISO 13849-1 Standard for Design of Industrial Machinery Safety Control System

  • Kim, Tae-Ho;Kim, Hong-Ki;Yoon, Hoon Yong
    • Journal of the Ergonomics Society of Korea
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    • v.32 no.3
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    • pp.279-291
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    • 2013
  • Objective: The aim of this study was to compare old standard EN 954-1 and new standard EN ISO 13849-1 through case study and provide necessity of adaptation of EN ISO 13849-1 in Korea. Background: International and EU harmonized standard EN ISO 13849 "safety of machinery - Safety-related parts of control system" is classified into Part 1: General principles for design and Part 2: Validation. EN ISO 13849-1 standard was introduced in Official Journal of the European Union on September 8, 2009 as harmonized standard, and old standard EN 954-1 was withdrawn on December 31, 2011. So, EU decided to use of EN ISO 13849-1 standard forcibly from January 1, 2012 for safety of machinery. New machines need to be CE marked if they are to be placed on the market in the European Economic Area(EEA), Switzerland or Turkey, and Korean machine builder should apply EN ISO 3849-1 standard for safety of machinery accordingly. However, current Korean Safety Certification system(KCs mark) for dangerous machinery is not referred to EN ISO 13849-1 standard as safety standard. There is a need of research for adaptation of EN ISO 13849-1 standard in Korea as safety standards for new design of safety-related control system which use mostly electronic components. Method: Five case studies of representative designs for safety-related control system in accordance with EN 954-1were selected according to safety category from B to 4. And these five representative designs were tried to change new design in accordance with EN ISO 13849-1 standard. The results of comparison were analyzed in aspect of economy and technical complexity. Results: The results showed that EN ISO 13849-1 provided quantitative method of application and it enabled designers to create safety-related control systems that require fewer components and less wiring, with many of the components being to a lower specification and, therefore, less costly. Conclusion: EN ISO 13849-1 standard is good for electronic safety-related control systems compare to EN 954-1. By considering the importance of application of EN ISO 13849-1 and benefits, the application of EN ISO 13849-1 as safety standard for safety of machinery is urgent in Korea. Application: The results of comparing EN 954-1 and EN ISO 13849-1 standard might help to determine the adaptation of EN ISO 13849-1 standard for safety of industrial machinery in Korea.

Study on the Nomenclature of Acupoints for the Healthcare Terminology Standard. (보건의료용어표준 경혈명에 대한 고찰)

  • Jung, Hyejin;Lim, Sabina
    • The Journal of Korean Medicine
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    • v.39 no.1
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    • pp.55-62
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    • 2018
  • Objectives: This study aims to investigate on the nomenclature of acupoints for the Healthcare Terminology Standard. Methods: We investigated the name of acupoints in "Standard Acupuncture Nomenclature (Second Edition)" of WHO, "WHO Standard Acupuncture Point Locations in The Western Pacific Region", "Principles of Meridians & Acupoints", "Details of Meridians & Acupoints" and "Acupuncture Medicine". Results: In books, we found that the name of acupoints was used differently in LI19, TE22, HT3, SI8, ST16, SI16, GB16 and BL8 acupoints. Conclusions: 口禾髎(LI19), 耳和髎(TE22), 少海(HT3), 小海(SI8), 膺窗(ST16), 天窗(SI16), 目窗(GB16), 絡卻(BL8) and 淵腋(GB22) in confused acupoints have been established as the terms of acupoints for the Healthcare Terminology Standard.

An investigation of normal range of tongue color in numerical coordinate (정상 설색의 수치적 기준에 관한 고찰)

  • Kim, Changhee;Kim, Kiwang
    • The Journal of the Society of Korean Medicine Diagnostics
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    • v.17 no.3
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    • pp.215-223
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    • 2013
  • Objectives Although tongue diagnosis is one of major diagnostic methods in east Asian traditional medicine, the standard of normal tongue color have not established. So we tried to suggest the method to establish the standard of normal tongue color range and the pilot data about the normal range. Materials and methods: 22 precedent study papers that presented the numerical data of normal (light red) tongue color were analyzed. At the same time, 46 adult people tongue color data were also collected and analyzed. Results Precedent studies showed remarkable fluctuations of the range of normal tongue color. Collected tongue color data of the 46 people showed mean Hue value 2 and standard deviation 14 in HSB system. Additionally, 3 ways of standard establishment for normal tongue color were suggested. Conclusion We suggest statistical method as a reasonable method for tongue color standard establishment and $2{\pm}14$ as a reference Hue value for normal tongue color.

Overall studies on the IMO manoeuvrability standard and problems arising in application of the criteria of it to various kinds of vessels

  • Lee Chun-Ki
    • Journal of Navigation and Port Research
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    • v.29 no.7
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    • pp.595-601
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    • 2005
  • The IMO manoeuvrability standard was established for preventing sea accidents such as collisions and strandings due to the lack of manoeuvrability. The standard of ship manoeuvrability enforced by resolution MSC.l37(76) has been applied to vessels of 100m or more in length and all chemical tankers and gas carriers regardless of the length, which were constructed on or after 1 July 1994. The IMO manoeuvrability standard is able to be divided into three kinds as followings; (1) Turning capability standard: Estimated values in design stage are to be certified by turning circle test of the actual vessel. (2) Course keeping quality standard : Estimated values in design stage are to be certified by 10 deg. and 20 deg. zig-zag tests of the actual vessel. (3) Shortest stopping distance standard : Estimated value in design stage is to be certified by the shortest stopping distance tested by the actual vessel. In this paper, the authors verified the criteria of IMO manoeuvrability standard comparing them with the values resulted from sea trial tests of various kinds of actual vessels and examined separately the validity of all criteria of the standard.

Overall studies on the IMO manoeuvrability standard and problems arising in application of the criteria of it to various kinds of vessels

  • Lee Chun-Ki;Yoon Jeom-Dong
    • Proceedings of KOSOMES biannual meeting
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    • 2005.11a
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    • pp.27-33
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    • 2005
  • The IMO manoeuvrability standard was established for preventing sea accidents such as collisions and strandings due to the lack of manoeuvrability. The standard of ship manoeuvrability enforced by resolution MSC.137(76) has been applied to vessels of 100m or more in length and all chemical tankers and gas carriers regardless of the length, which were constructed on or after 1 July 1994. The IMO manoeuvrability standard is able to be divided into three kinds as followings; (1) Turning capability standard: Estimated values in design stage are to be certified by turning cir치e test q the actual vessel (2) Course keeping quality standard: Estimated values in design stage are to be certified by 10 deg. and 20 deg. zig-zag tests of the actual vessel. (3) Shortest stopping distance standard: Estimated value in design stage is to be certified by the shortest stopping distance tested by the actual vessel. In this paper, the authors verified the criteria of IMO manoeuvrability standard comparing them with the values resulted from sea trial tests of various kinds q actual vessels and examined separately the validity of all criteria of the standard.

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A Study on the Revision Process Improvement Plan through the Analysis of the Current Status of the Academic Standard Classification System and Issues

  • Younghee Noh;Jeong-Mo Yang;Ji Hei Kang;Yong Hwan Kim;Jongwook Lee;Woojung Kwak
    • International Journal of Knowledge Content Development & Technology
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    • v.13 no.1
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    • pp.111-130
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    • 2023
  • There are the national science and technology standard classification system used in Korea, the classification according to the standard classification system for educational organization units, and the Korean standard education classification by the National Statistical Office. It is not suitable for calculation or evaluation, and classification is still mixed depending on the purpose of use. Therefore, in this study, the current status of academic standard classification, issues related to the standard classification system such as research foundation associations and research institutes, and issues related to the academic standard classification through the analysis of existing prior research issues, etc. As a result of the research, first, it is necessary to maintain and strengthen the linkage of the academic classification system, such as maintaining the linkage between the relevant departmental classification systems and strengthening the linkage with the relevant classification system, as a result of analysis of major issues in the academic standard classification system, and the systematic improvement cycle of the revision process and management system and settings are required.

The Study on Test Standard for Measuring AI Literacy

  • Mi-Young Ryu;Seon-Kwan Han
    • Journal of the Korea Society of Computer and Information
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    • v.28 no.7
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    • pp.39-46
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    • 2023
  • The purpose of this study is to design and develop the test standard to measure AI literacy abilities. First, we selected key areas of AI literacy through the related studies and expert FGI and designed detailed standard. The area of the test standard is divided into three categories: AI concept, practice, and impact. In order to confirm the validity of the test standard, we conducted twice expert validity tests and then modified and supplemented the test index. To confirm the validity of the test standard, we conducted an expert validity test twice and then modified and supplemented the test standard. The final AI literacy test standard consisted of a total of 30 questions. The AI literacy test standard developed in this study can be an important tool for developing self-checklists or AI competency test questions for measuring AI literacy ability.

Application of S-100 Standard in the field of e-Navigation

  • Oh, Se-Woong;Kim, Ho-Yoon;Suh, Sang-Hyun;Kim, Sun-Young
    • Journal of Navigation and Port Research
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    • v.36 no.2
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    • pp.105-112
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    • 2012
  • In order to improve the existing S-57 standard, International Hydrographic Organization(IHO) has developed S-100 standard, a Universal Hydrographic Data Model(UHDM) expanded from ISO 19100 series standard to hydrographic area, and is in the process of its implementation. International Maritime Organization(IMO) has established CMDS based on e-Navigation strategy data standard as International Association of Lighthouse Authorities(IALA) established IHDM based on aids to navigation data standard and each data standard is linked with the S-100 standard. Fundamental concept and core principles of S-100 standard is suitable not only for the development of a wide range of hydrographic data and service production standard, including the next generation ENC, but also the development of product specification of non-hydrographic area. This study has examined the operation principle of S-100 standard and analyzed its implementation process as e-Navigation data in relation with ENC. It also noted the utilization of S-100 standard based e-Navigation and its potential effect via examining the development cases of S-100 standard-based product specification, such as nautical publication, ship reporting and pilot request, digital routing guide, tide and water level transmission and other important data cases of e-Navigation field.

Improvement of Emissions from Diesel Engine according to the Korean Standard Test Cycle in the Construction Equipment (건설기계용 엔진의 국내 표준시험모드에 따른 배출가스 특성 및 개선)

  • Joo, Taeheun;Yu, Seunghun;Lee, Chang-Eon
    • Journal of the Korean Society of Combustion
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    • v.19 no.4
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    • pp.42-48
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    • 2014
  • The emission standard of diesel engine on the construction equipment has been rapidly enhanced in advanced countries, because most of air pollutions was caused by construction equipment. So, all of the construction equipments will be tested for emission with standard measurement mode. But, the standard measurement mode of construction equipment is different for non-road and one for the road in korea. This study was conducted to measure emission characteristics of the construction equipment with changed standard measurement mode and to improvement the emissions experimentally.

Investigation of Actural State of Plastic Greenhouse Structures in Korea (플라스틱 하우스의 구조 실태의 조사 연구)

  • 김문기;고재군;이신호
    • Magazine of the Korean Society of Agricultural Engineers
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    • v.29 no.3
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    • pp.113-124
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    • 1987
  • The objective of this study was to disclose the problem of structural safety and the state of utilization of standard types of plastic film house through investigation of actural state of plastic greenhouses for the southern part of the Korean peninsula. And also, the application method of standard types were proposed. The results obtained are summarized as follows 1. Plastic film houses investigated were not designed by the structural design conditions of loads and materials. 2.The construction method of greenhouses was not standardized. 3.Single type of standard greenhouses was nearly used and double types were applied to the standard type. 4.The standard frames of plastic film house were appeared to have structural lack of stability at the design snow and wind loads for most regions. 5.Safety snow depths and safety wind velocities were proposed for the frame intervals and pipe diameters of standard greenhouses.

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