• Title/Summary/Keyword: Korean Standard Certification

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Study on Normalization Method of LED Degradation Data (LED 열화 데이터에 대한 정규화 방법에 대한 연구)

  • Jeong, Uihyo;Lim, Hongwoo;Hyung, Jaephil;Jung, Changuk;Cho, Jeongha;Jang, Joongsoon
    • Journal of Applied Reliability
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    • v.18 no.1
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    • pp.49-55
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    • 2018
  • Purpose: To propose improved method for normalization, compare to the de facto international standard which is IESNA TM-21 or conventional normalization methods. Methods: Firstly, we analysed conventional methods and specified the problem of normalization method which is based on first measured data. Secondly, we proposed our approach which is based on the design specification. Lastly, we studied a real degradation data which is conducted for 15,000 hours. Conclusion: Proposed normalization method is better approach because it can reflect real data and design specification, and reduce distortion when analysing degradation data. Also, It is appliable to other long-life reliability items.

An Analysis of Environment-Friendly Architecture Material Elements (친환경 건축 자재의 요소 분석)

  • Kim, Jin-Woo
    • The Journal of Sustainable Design and Educational Environment Research
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    • v.7 no.2
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    • pp.1-11
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    • 2008
  • Recently, it is throwing the spotlight on environment-friendly architecture for preservation of the global environment throughout the world. At this point in time, home products to have Eco-label in architecture materials is increasing constantly and the demand of environment-friendly building and material is rising. The purpose of this study is to propose a way of development through analysis about necessity and concept of environment-friendly architecture and research into institution and standard for certification of environment-friendly building materials. So, it will make exactly progress to this study that is based on analysis and research of periodical publications, theses, reports of journal and data of the advanced country about environment-friendly architecture.

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The Influence of Ginseng Cultivating Farms' Characteristics on the Attitude and Intention to adopt GAP

  • Lee, Dongmin;Yu, Seong Gu;Park, Wooseok;Rhee, Cheul
    • Agribusiness and Information Management
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    • v.5 no.2
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    • pp.7-15
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    • 2013
  • As the consumers' anxiety for food increases, the interest in food safety also increases. To satisfy the public requirement on food safety, the government is trying to set up a food safety standard by using regulations and certification systems. However, there is still difficulty in building up complex traceability systems for medicinal crops including ginseng due to the low participation of farming industries. The purpose of this empirical research is to draw factors that impede the GAP adoption of ginseng farms. By comparing the average attitude and intention to adopt the ginseng farms' depending on its characteristics through a two-tailed test, it was drawn that continuous farming education can positively influence the GAP adoption of the ginseng farms.

A Study on the Safety Management Structure in Railway (철도에서의 안전성 인증방안에 관한 연구)

  • Joung, E.J.;Lee, J.W.;Hwang, J.G.;Kim, Y.M.
    • Proceedings of the KIEE Conference
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    • 2001.04a
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    • pp.433-435
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    • 2001
  • Certification is the process of issuing a certificate to indicate conformance with a standard, a set of guidelines or some similar document. Any organization or individual may issue a certificate. In some cases a certificate may be required for legal reason. In such circumstance the certificate takes on the role of a licence from a statutory authority. In railway industry safety has always been the first concern. To achieve certification, specific safety management is required. In this paper, different types of safety management process through out the world are mentioned, and safety management structure appropriate to our circumstance is represented.

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IN-FLEX System Using Aluminum Clad Flex Cable (MCIF CABLE) (가요성 알루미늄피 케이블 (MCIF CABLE) 을 적용한 일체형 배선시스템)

  • Koo, Kyung-Wan;Chun, In-Suk;Moon, Young-Jae;Lee, Byung-Yong
    • Proceedings of the KIEE Conference
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    • 2007.04b
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    • pp.58-60
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    • 2007
  • This paper introduces the IN-FLEX system using aluminum clad flex cable, which is expected to alternate the conventional wiring method, such as, a steel pipe wiring method, and a synthetic resin pipe wiring method. The aluminum clad flex cable has a superior operation characteristics in heat dissipation property, in installation and maintenance facility, flammability, and appearance. Moreover, the IN-FLEX system adopted an easy connection mechanism which enable to reduce the time, hands and expense for the installation and maintenance of the system. Certification tests verifying the superior operation characteristics and reliability of the system using aluminum clad flex cable were carried with standard method in KOLAS certification institute.

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Strategic Policy and Present Condition of Standardization on New & Renewable Energy (신.재생에너지 표준화현황 및 정책)

  • Sin, Seong-Ho
    • New & Renewable Energy
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    • v.2 no.1 s.5
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    • pp.21-25
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    • 2006
  • Standards are increasing of importance for New & Renewable energy. The rapid growth of production is one reason for this but standards are equally important in ensuring the quality and reliability of installed New & Renewable energy systems, which have a propound impact on acceptance of the technology in the expanding marketplace. Korea government (Korea Agency for Technology and Standards, KAIST)make and implement a five year plans for promotion of international standardization of this field from 2004. KATS leads the technology innovations and eventually increases the international competitiveness. Strategic collaboration with other countries is also strengthened through Korea's participation in international standards and conformity assessment system such as IECEE(IEC system for conformity and certification of electrical equipment). One of the major goals of the Plan is to facilitate trade between Korea and its trading partners by emphasizing harmonization of its national conformity assessment system with international norms.

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A Study on the Necessity of Korean Standard and Code of Safety for Diving System (잠수 시스템의 국내 표준 및 안전 기준 제정 필요성에 관한 연구)

  • Park, Jong-Yeob;Kang, Sin-Young
    • Journal of Advanced Marine Engineering and Technology
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    • v.35 no.6
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    • pp.856-860
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    • 2011
  • The standard and code of safety for diving systems include requirements in the area of diving plant, personnel qualification, diving medicine and operation. In this study the necessity of Korean standard and code of safety for diving system is suggested through the review and comparison of the diving system regulations of domestic as well as foreign governments and other private organizations. Furthermore, by reviewing the status of oversea's diving organizations the proposition was made which can lead the commercial diving sector to international cooperation.

Electronic Nose Analysis of Ethanol in Gochujang for Halal Food Certification (전자코를 사용하여 할랄식품 적용을 위한 고추장 중 에탄올 분석)

  • Park, Su Won;Sim, You Sin;Choi, Jin Young;Park, Eun Young;Noh, Bong Soo
    • Korean Journal of Food Science and Technology
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    • v.48 no.3
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    • pp.193-200
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    • 2016
  • The purpose of this study was to investigate whether the electronic nose can be applied as a primary screening procedure to detect ethanol in gochujang for halal certification. First, ethanol content in 25 traditional gochujang was measured by gas chromatography with flame ion detector, widely accepted as the conventional method of alcohol detection. The content ranged from 0.14 to 2.7%. Then, 8 gochujangs selected from among the initial 25 samples were analyzed by electronic nose. Similar ethanol content patterns were observed between the two detection methods. In addition, commercial gochujang products were examined by electronic nose to ensure that they complied with the required ethanol standard of the halal certification authority. Consequently, it was confirmed that electronic nose analysis can be applied as a primary screening method for halal certification.

A study on NCS based qualification plan development procedure of industrial safety field - Focused on the industrial safety, industrial health, nondestructive section- (산업안전 분야 NCS기반 자격설계 개발과정에 관한 연구 - 산업안전, 산업보건, 비파괴 분야를 중심으로 -)

  • Yi, Shin-jae;Yang, wook;Yoon, Young-Ju;Choi, Seo-Yeon
    • Journal of the Korea Safety Management & Science
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    • v.17 no.3
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    • pp.9-14
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    • 2015
  • The study is conducted in order to establish validity of industrial safety field's neo-qualification composition by suggesting reengineering procedure of NCS based industrial safety field's qualifying occupational plan. Industrial safety fields are first classified into great classification which are environment energy safety, and then into sub-classification which are industrial safety management, industrial health management, and nondestructive test. NCS based neo-qualification plan is deveopled into progress as following steps; First, planning NCS neo-qualification system. Second, presenting work education combined program certification standard. Third, developing NCS based neo-qualification assessment standard. Fourth, developing work education qualification prototype problem. The process of qualification plan was composed with Worksheet 14 and with 4phase being completing summary of each section, certification and development of assessment standard, and development of prototype problem. As a result, Industrial safety manager was redesigned into Industrial sfety manager and Construction Safety Manager, and Occupational Health Care Manager was redesigned into Occupational Health Care Manager and Industrial Health Manager. This study, in conclusion, suggests development of qualifying occupation that could be applied to the integrated management system and development of future industrial safety field's specialized neo-qualifying occupation.

Evaluation of Filtration Efficiency and Inhalation Airflow Resistance of Uncertified Masks in Asian Countries

  • Sohyun Kang;Soomin Kim;Ji Soo Kim;Gayoung Lee;Annisa Utami Rauf;Kraichat Tantrakarnapa;Shih-Chun Candice Lung;Kiyoung Lee
    • Journal of Environmental Health Sciences
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    • v.50 no.4
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    • pp.267-273
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    • 2024
  • Background: During the coronavirus pandemic, masks played a critical role in preventing respiratory infections. While the performance of masks such as KF-certified masks and N95 masks was evaluated and managed by the authorities, the performance of common masks was not. Objectives: This study aimed to evaluate the performance of uncertified masks in four Asian countries against certification standards (Korean KF80, KF94, and US N95). Methods: Thirty uncertified mask products from Indonesia, 20 from South Korea, 26 from Taiwan, and 30 from Thailand were purchased to perform performance evaluations. The uncertified masks included disposable dental masks, cloth masks, and children's masks. Filtration efficiency and inhalation airflow resistance tests were conducted according to Korean KF80, KF94, and US N95 protocols. Results: None of the 106 identified masks complied with the KF94 standard. A few complied with the KF80 standard: four from Indonesia, four from South Korea, 13 from Taiwan, and 16 from Thailand. Some of the masks met the N95 standard: one from Indonesia, three from South Korea, two from Taiwan, and one from Thailand. Conclusions: Since many uncertified masks did not comply with performance standards, wearing them might not have provided sufficient protection. Performance of uncertified masks could provide critical information for next pandemic management.