• Progress in Superconductivity and Cryogenics
• /
• v.5 no.1
• /
• pp.123-127
• /
• 2003

For disseminating a ney IEC international standard of critical trmperature of NbTi,Nb$_3$Sn and Bi-2223 Composite Suterconductors, we develpted a measuring system and studied standardization of test method. The measuring system consisted of cryogenic reservoir, base plate, thermometer, voltmeter and current source. Various specimens of the Nbti, Nb$_3$Sn and Bi-2223 composite superconductors were tested using this system for measuring their critical temperatures. After measuring the resistance-temperature relation, the data were compensated with thermoelectric voltages for NbTi Nb$_3$Sn specimens. NbTi specimens showed 9.2 K ~ 9.5 K of transition temperature and Nb$_3$Sn specimen showed about 18 K. Bi-2223 specimens showed 104 K ~ 107 K of transition temperature.

• Proceedings of the Korean Society of Precision Engineering Conference
• /
• 2005.10a
• /
• pp.43-48
• /
• 2005

In order to facilitate technical exchange among nations and/or institutes through the establishment of mutual recognition and the reliability guarantee of testing results by testing standards standardization, the interlaboratory comparison tests on brake discs and linings between KRRI and CARS were conducted. So far, two ways of comparison tests were performed for a better understanding of mutual recognition and standardization in railroad brake linings between Korea and China. In this paper, the first and second comparison testing results have been summarized, and the suggestions for the future research work are also presented to encourage extensive research on comparison study of railroad brake discs and linings between KRRI and CARS. Eventually, the final goal of the current research will be the establishment of standardization of railroad testing standards.

• International journal of advanced smart convergence
• /
• v.10 no.3
• /
• pp.59-65
• /
• 2021

In this paper, we propose the AI certification standardization activities for systematic research and planning for the standardization of trustworthy artificial intelligence (AI). The activities will be in two-fold. In the stage 1, we investigate the scope and possibility of standardization through AI reliability technology research targeting international standards organizations. And we establish the AI reliability technology standard and AI reliability verification for the feasibility of the AI reliability technology/certification standards. In the stage 2, based on the standard technical specifications established in the previous stage, we establish AI reliability certification program for verification of products, systems and services. Along with the establishment of the AI reliability certification system, a global InterOp (Interoperability test) event, an AI reliability certification international standard meetings and seminars are to be held for the spread of AI reliability certification. Finally, TAIPP (Trustworthy AI Partnership Project) will be established through the participation of relevant standards organizations and industries to overall maintain and develop standards and certification programs to ensure the governance of AI reliability certification standards.

• International Journal of Internet, Broadcasting and Communication
• /
• v.14 no.2
• /
• pp.70-78
• /
• 2022

The trenchless entire repair technology (TERT) have many different names depending on the companies, and they have the same or similar methods as well as materials. In addition, there was quiet difficulty in application of field working and even confuse to classify for new TERT, while application criteria of TERT is not listed systematically. This study proposed standardization and method for TERT affecting by pipe condition, working materials, working method, specification/quantity per unit according to field condition, strange affairs and others. Determination criteria of defective sewer pipe has proposed to effective method which modify a criteria between Ministry of Environment and Seoul Metropolitan City. A Cured-in-place pipe (CIPP) is suitable for TERT, and the design criteria for the entire broken pipe are proposed when the pipe itself deforms more than 10%. A check lists are specimen preparing, hardening site made by clamped mold, numbers, flexural and tensile property, water leak and desquamation test, and have to use material property of minimum CIPP value depend on ISO 11296-4, ISO 11297-4, KS M3550-7 and KS M3550-9.

• Clinical and Experimental Pediatrics
• /
• v.50 no.5
• /
• pp.409-415
• /
• 2007

Allergy skin prick test and intradermal test represent one of the major tools in the diagnosis of IgE-mediated diseases like as atopic asthma, allergic rhinitis, atopic dermatitis, food and drug allergy, and insect bite when properly performed. Skin tests are of particular importance in fields such as allergen standardization, pharmacology, and epidemiology. Even if skin tests seem easy to perform, adequate and proper interpretation requires well-trained physicians who can recognize the numerous factors that may modify the results of skin tests.

• Journal of the Korean Vacuum Society
• /
• v.16 no.6
• /
• pp.397-404
• /
• 2007

International Standardization for Vacuum pumps, vacuum instruments, and vacuum components has been established at ISO/TC 112 which is a technical committee of ISO (International Organization for Standardization) in the area of vacuum technology. This report shortly summarizes the structure of ISO/TC 112 and its activities on the standardization for vacuum technology. Also it introduces the brief contents of "specifications for hot cathode ionization gauges" and"Test procedure for vacuum valves" which are recently accepted as new proposals. These information on ISO/TC 112 would contribute to activate the development of vacuum technology as well as the participation for the international standardization in Korea.

• Journal of the Architectural Institute of Korea Planning & Design
• /
• v.34 no.4
• /
• pp.19-25
• /
• 2018

At present, there are many companies that can produce modular housing. However, if the housing projects are conducted without design standards and principles, each company will supply housing according to its own design standards, resulting in a loss of opportunity to promote standardization at a national level. Korea's modular construction technology is still in its infancy, and there is a lack of MC design applications due to the limited construction market. In recent years, however, related R&D has been carried out by the Ministry of Land, Infrastructure and Transport in order to activate modular construction. As a result, test-beds for public rental housing are currently being built, and the public rental housing applied with the modular construction method is expected to spread in the near future. In this regard, this study seeks to promote more economical and efficient production and supply of modular housing. To this end, it investigates the current status of modular construction, analyzes the problems and proposes a serious of MC design standards as part of the design standardization and open system for modular housing industry to solve the problems.

• Journal of Welding and Joining
• /
• v.25 no.2
• /
• pp.37-42
• /
• 2007

• Journal of the Korean Society for Precision Engineering
• /
• v.23 no.7 s.184
• /
• pp.14-23
• /
• 2006

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2016.10a
• /
• pp.638-641
• /
• 2016

UHD(Ultra High Definition) broadcasting is an attractive next-generation service of realistic broadcasting that enables you to feels like listening on the spot in ultra-high definition resolution. In addition, the test broadcasting run by UHD broadcasting agencies and UHDTV terminal launch could herald the full-scale UHD broadcasting era. However, in order that UHD broadcasting will be activated, the function of conditional access control and information protection through which we can on pay per view watch the programs of subscriber preference from the channels of various and subdivided genres is essential. To provide a technical foundation for these features and to achieve the UHD TV transition early, determining technology development & standardization strategy through the analysis of the key protection technologies is required In this paper, we propose standardization technologies which our country can lead and present a long-term driving directions by analyzing UHD broadcasting technology & test broadcasting trends and content protection technology & standardization trends.