• Title/Summary/Keyword: national standards

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A New Approach to CAD/CAM Systems Data Exchange Using Plug-in Technology

  • Chernopyatov Y.A.;Chung W.j.;Lee C.M.
    • International Journal of Precision Engineering and Manufacturing
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    • v.6 no.4
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    • pp.8-13
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    • 2005
  • Interoperability has been the problem of CAD/CAM systems. Starting from 1980's, national and international organizations have addressed the issue through development and release of standards for the exchange of geometric and nongeometric design data. To CAD/CAM vendors, the task of interpreting and implementing these standards falls into their products. This task is a balancing action between users' needs, available development resources, and the technical specifications of standards. This paper explores an area of CAD/CAM systems development, particularly the implementation of the effective exchange files translators'. A new approach is introduced, which proposes to enclose all the translation operations concerning each exchange format to a separate DLL, thus making a 'plug-in.' Then, this plug-in could be used together with the CAD/CAM system or with specialized translation software. This approach allows to create new translators rapidly and to gain the reliable, high-efficiency, and reusable program code. The second part of the paper concerns the possible problems of translators' development. These difficulties often come from the exchange standards' misunderstanding or ambiguity in standards. All examples come from the authors' practice experiences of dealing with CAD/CAM systems.

Development a System to Manage the Code of Construction Specifications and Design Standards (국가건설기준 코드 관리시스템 구축)

  • Jung, In-Su
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.18 no.10
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    • pp.88-96
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    • 2017
  • The construction standards in Korea consist of design standards and specifications. They are provided by the national transportation electronic information center in file format, not in a DB, which may lead to their incomplete utilization and versatility, such as a lack of history management and reference functions. This also makes it difficult to cross-refer to standards and manage revision history. In this study, we developed a code management system for the national construction standards by analyzing domestic and overseas related systems, in order to pinpoint the problems in the current system and its development direction and, thus, to suggest a detailed plan for the design and implementation of a code management system. The developed system comprises four subsystems, namely a construction standards making system, construction standards service system, construction standards maintenance system and construction standards portal system. The results of this study are expected to improve the user's convenience by facilitating the revision, operation and history management of the complex and various construction standards, and to provide high-quality national construction standards by effectively supporting the revision and operation of the national construction standards with minimum duplication and conflicts.

Development of AC Resistance Measurement System (교류저항 측정시스템 개발)

  • Kim, Han-Jun;Yu, Kwang-Min;Kang, Jeon-Hong;Han, Sang-Ok
    • Proceedings of the KIEE Conference
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    • 2008.07a
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    • pp.683-684
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    • 2008
  • The resistance is frequency dependent by the Seeback effect, loading effect, Eddy current loss, uniformly distributed inductance of the resistance element and uniformly distributed self-capacitance of the resistance element and capacitance between resistance element and it's box. A precise ac resistance measurement system has been developed for using as maintaining and dissemination of national ac resistance standards. The developed resistance measurement system can be used as a instrument of national ac resistance standards at frequency less than 10 kHz and it's measurement accuracy was 0.23(${\mu}{\Omega}/{\Omega}$)+4.2 ${\mu}{\Omega}$ at 1592 Hz and 20 V.

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Development of Quality Management in the Republic of Kazakhstan

  • Jambul, Ainur;Dzhulayeva, Almazhan
    • Asian Journal of Business Environment
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    • v.5 no.2
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    • pp.23-29
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    • 2015
  • Purpose - This theoretical study develops practical recommendations for implementing a quality management system (QMS) in Kazakh organizations to ensure the effectiveness and safety of products and services. We discuss the improvement of Kazakhstan's quality standards based on the requirements of ISO 9000. Research design, data, and methodology - We provide methods for improving the quality standards system, ranging from research and development to the sale of products. We also propose to establish a special quality systems award to motivate enterprises toward product quality improvement. The study's methodological basis included Kazakhstan's legislative and regulatory Acts, and international and national standards defining QMS requirements for scientists worldwide to develop and implement a QMS for enterprises. Results - Aligning the QMS reduces Kazakh companies' costs for the detection and correction of defects, and the external and internal loss caused by the defects. Effective QMS also reduces management costs. Conclusion - This article can help increase the transparency of organizations for their leaders and (if necessary) the external environment, and improve the accuracy, quality, and timeliness of decision-making.

Comparison of Test Standards for the Performance and Safety of Agricultural Tractors: A Review

  • Kabir, Md. Shaha Nur;Chung, Sun-Ok;Kim, Yong-Joo;Shin, Sung-Hyun
    • Journal of Biosystems Engineering
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    • v.39 no.3
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    • pp.158-165
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    • 2014
  • Purpose: The objective of this paper was to compare test standards regarding the performance and safety of agricultural tractors to identify the differences in test conditions, measurement tolerances, and test procedures. Based on the comparison, some recommendations were proposed for possible revisions or improvements to current tractor test standards. Methods: The test standards and codes of major standards development organizations (SDOs), such as the Organization for Economic Cooperation and Development (OECD), the International Organization for Standardization (ISO), the American Society of Agricultural and Biological Engineers (ASABE), EC type approval, and the board of actions of the Nebraska Tractor Test Laboratories (NTTL), were selected and analyzed. Comparison of the test standards: The ISO provides references for fuel and lubricants for tractor tests, and the OECD provides additional measurements for calculating fuel consumption characteristics during the power take-off (PTO) tests. The ISO, EC type approval, and the ASABE provide PTO protective device and the safety requirements. During drawbar power tests, seven transmission ratios are selected for fully automatic transmissions, according to the OECD. In case of hydraulic lift tests, ISO 789-2 and OECD Code 2 advise the use of a static lift force, while SAE J283 advises the use of additional dynamic lift capacity tests for a better representation of in-field operations. The OECD, the ISO, and EC type approval determine the seat index point (SIP), whereas the ASABE determines the seat reference point (SRP) for roll-over protective structure (ROPS) tests. Diversified measurement tolerances were among the braking performance test standards. The European Union (EU) has developed daily limits for vibration exposures with adaptations from ISO 2631-1. Electromagnetic compatibility evaluations are emerging of high-efficiency tractors due to the long-term conformance to electromagnetic emissions and interferences. Comparisons of tractor test standards discussed in this paper are expected to provide useful information for tractor manufacturers and standards development personnel to improve the performance and safety test standards of tractors.

Development of nutrient-based nutritional standards for foodservice at shelters during disasters in the Republic of Korea

  • Satoko Abe;Meeyoung Kim;Jihyun Yoon
    • Nutrition Research and Practice
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    • v.17 no.1
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    • pp.135-148
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    • 2023
  • BACKGROUND/OBJECTIVES: In times of disaster, simplified and minimized nutritional standards are necessary for a quick response to provide nutritious relief food. This study aimed to develop nutrient-based nutritional standards for foodservice at shelters during disasters in the Republic of Korea (South Korea). SUBJECTS/METHODS: The standards were developed in 2 phases. First, nutrients to be included in the standards were selected. Initial candidates were selected considering 3 aspects: preceding standards, insufficient intake during disasters, and inadequate intake among South Koreans. Final selection was made by excluding nutrients for 3 reasons: nutrients for which there is no deficiency concern in South Korea, nutrients whose intake data were not available, or nutrients whose values presented by Dietary Reference Intakes for Koreans are difficult to achieve based on the current diet among South Koreans. Second, the reference values of energy and the selected nutrients were calculated. The reference values for the entire population who were 1-year-old and over were calculated by multiplying the estimated energy requirements or the recommended nutrient intake and the proportion of each age and sex group. Respective reference values were also calculated for 4 different age groups (1-5, 6-11, 12-64, and ≥ 65-year-old). RESULTS: The standards for the entire population were 2,000 kcal for energy, 55 g for protein, 650 ㎍ retinol activity equivalents for vitamin A, 95 mg for vitamin C, 1.1 mg for thiamin, 1.3 mg for riboflavin, 14 mg niacin equivalents for niacin, 350 ㎍ dietary folate equivalents for folic acid, 750 mg for calcium, and 11 mg for iron. Four additional standards corresponding to each age group were developed. CONCLUSIONS: The nutritional standards during disasters were developed for South Korea, including energy and 9 nutrients with reference values for the entire population and 4 different age groups. The standards will contribute to maintaining the health of disaster evacuees in South Korea.

Development of a Competency Curriculum of Computer Aided Mechanical Department based on the National Occupational Standards (국가직업능력표준을 활용한 컴퓨터 응용기계설계과용 능력중심 교육과정 개발)

  • Ryu Hyeong-Ryong;Pyoun Young-Sik;Gu Ja-Gil
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.6 no.1
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    • pp.17-23
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    • 2005
  • According to the trend that knowledge information and technology become resource of international competitiveness in industrial development, some countries of world are improving national human resource development system through National Occupational Standards, which is inseparable link system of work-education and training-qualification. National Occupational Standards have been developed fur over all industries by Human Resource Development Korea since 2002. Purpose of this study is to develop a competency based curriculum of computer mechanical design department in junior college or polytechnic college by systematic curriculum and instructional development model based on Korean National Occupational Standards. A guide line how to develop education and training program is presented also.

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The Direction for Revising the Achievement Standards in Korean Home Economics Education: Focussing on the Comparison with the U.S. National Standards (가정교과 성취기준의 서술방식 개선 방향 - 미국 국가 기준과의 비교를 중심으로 -)

  • Kim, Eun Jeung;Kwon, Yoojin;Lee, Yoon-Jung
    • Journal of Korean Home Economics Education Association
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    • v.25 no.1
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    • pp.37-54
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    • 2013
  • This study aimed at examining the characteristics of the Korean home economics achievement standards at secondary education level, and comparing with those of U.S. home economics national standards. The specific research questions were as follows. First, the characteristics of Korean and U.S. achievement standards were examined respectively. Second, the standards of the two countries were examined in terms of the grades involved, development areas, specification level, sequence of courses, and format of statements, adopting the analysis framework of Lee, Jang, and Park(2012). Third, the achievement standards of the two countries for specific content areas, i.e. 'understanding adolescents' and 'understanding family' were compared in terms of the styles and format of statements. The findings suggest that in developing the Korean achievement standards, integration with the curriculum and detailed and specific statements are important to facilitate adoption at schools. The results of the comparison with the U.S. national standards indicates that it is important to emphasize academic rationale to home economics as a subject by clearly presenting the concepts, contents, and categories. Also, the standards will need to be stated in specific terms to allow practices and evaluations, rather than in terms that reflect value judgments.

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