• 제목/요약/키워드: Global standards

검색결과 669건 처리시간 0.041초

KS 규격과 ISO 규격에 따른 시멘트 모르터의 강도특성 (Properties of the Strength of the Cement Mortar Depending on the KS and ISO)

  • 김선미;최정호;서상교
    • 한국콘크리트학회:학술대회논문집
    • /
    • 한국콘크리트학회 2001년도 가을 학술발표회 논문집
    • /
    • pp.239-244
    • /
    • 2001
  • Opens the construction market recently, the construction industry of Korea has faced up to the barrier of globalism, and has been enforced to follow the various global standards in many aspects. Accordingly, it is expected that the test method related to the cement and concrete will be changed to conform to the international standards in Korea. Therefore, in this study, the strength tests are executed for the cement mortars, made by KS and ISO standards respectively, and then obtains such results. 1) The flow of the cement mortar according to ISO is about 8% higher ,than that of KS. 2) The flexural strength of the cement mortar according to ISO is about 10~20% higher than that of KS, and the compressive strength is about 30% higher. 3) The compressive strength relation between the cement mortars of KS and ISO may be expressed in the first-order recurrence formula as follows: Y = 1.33X - 8 In which X is the compressive strength(kgf/$\textrm{cm}^2$) of the mortar according to KS and Y is the compressive strength(kgf/$\textrm{cm}^2$) of the mortar according to ISO.

  • PDF

Reappraisal of Regional Growth Charts in the Era of WHO Growth Standards

  • Moon, Jin Soo
    • Pediatric Gastroenterology, Hepatology & Nutrition
    • /
    • 제16권3호
    • /
    • pp.137-142
    • /
    • 2013
  • After the WHO Growth Standards (WHOGS) was published in 2006, many countries in the world endorsed and adopted the new growth references as a standard measure for the growth of infants and young children. Certainly, the WHOGS has an impact on the global policy about obesity and underweight in children. Such WHOGS innovation has influenced many regional health authorities and academies, which have managed their own growth charts for a long time, in changing their strategies to develop and use regional growth charts. In Korea, along with the tradition to create a national growth chart every decade, we now face a new era of advancing with the WHOGS.

한국과 중국간 콘크리트용 골재의 품질 규정 비교 (Comparison of Quality Standards for Aggregates of Concrete between Korea and China)

  • 후윈야오;한수환;임군수;한준희;윤치환;한천구
    • 한국건축시공학회:학술대회논문집
    • /
    • 한국건축시공학회 2022년도 봄 학술논문 발표대회
    • /
    • pp.105-106
    • /
    • 2022
  • In this study, the classification, particle size, physical properties, and harmful substance contents of aggregates were compared in the standards between Korea and China. As a result of the analysis, although Korea and China are geographically adjacent from a global perspective, there are many differences in standards. In other words, it is analyzed that the standard was set due to the influence of the United States and Japan in Korea, while the standard was set due to the influence of Europe and Russia in China.

  • PDF

참조표준 일사량 데이터에 대한 불확도 평가 (An Evaluation of Uncertainty for Reference Standards Solar Radiation Data)

  • 김상엽;조덕기;윤창열;김광득
    • 한국태양에너지학회 논문집
    • /
    • 제31권1호
    • /
    • pp.51-58
    • /
    • 2011
  • The energy makes the basic element which improves the quality of life with motive power of industry and life. However, using the fossil fuel resources was restricted through it's abuse and exhaustion, and that cause a global warming resultingly. According to the reason, the world increased the interest that are stability and use of new and renewable energy which is clean energy with environment. Therefore, the property data of new and renewable is needed for developing and supplying the energy. In other words, the data of new and renewable energy becomes the standards for supply and evaluation of new and renewable energy with development of industry and technology. Also, the necessity came to the fore as the reference and standards of new and renewable energy data. Therefore, in this study, we evaluate and collect the solar radiation data as the new and renewable data and process the collected data through the standards for valuation. We evaluate uncertainty with standards which are NREL, WMO, and GUM. Whereby the data becomes reference standards data and gains the credibility. For the reliability data, we correct the measuring instrument with correction period. Using the DQMS and SERI QC, we efficiently manage and evaluate the solar radiation data. As a result, we evaluate uncertainty as 1,120 case about 16 area. we achieve credibility of data from evaluated solar radiation data and provide an accurate information to user. The annual average of horizontal radiation presents between 1,484 and 4,577, then the uncertainty evaluates from 163 to 453. The error of uncertainty presents smaller than the measurement values. So, we judge a credibility of data by expression of reliability quantitatively. In additional, the reference standards data which is possible to approach anywhere will be used for the supporting related industry and policy making.

A Vision for Insuring Sustainability and Applicability

  • 3NF Corporation
    • 한국전자거래학회:학술대회논문집
    • /
    • 한국전자거래학회 1998년도 학술대회지 vol.1
    • /
    • pp.283-286
    • /
    • 1998
  • CALS: “...to share integrated digital product data through a set of standards to achieve efficiencies in business...” This Conference: “The realization of global electronic commerce by restructuring” This Presentation: Give the participants a vision that will aid them in the achievement of the above goals.(omitted)

  • PDF

범유럽의 글로벌 멀티미디어 이동통신기술 - ETSI의 GMM보고서를 중심으로 -

  • 김형준
    • TTA 저널
    • /
    • 통권49호
    • /
    • pp.114-123
    • /
    • 1997
  • 본 고는 유럽 정보통신 표준화 선도기관인 ETSI(European Telecommunications Standards Institute)에서 발간한 GMM(Global Multimedia Mobility) 보고서로 향후 2000년대의 멀티미디어 이동통신 기술의 전망과 관련 표준화 추진방향을 그 내용으로 한다. 이에 필자는 상기 보고서 내용을 중심으로 범유럽의 이동통신기술 현황과 향후 표준화추진 정책방향을 2회에 걸쳐 정리하고, 우리의 대응책을 점검하고자 한다.

  • PDF

범 유럽의 글로벌 멀티미디어 이동통신 기술 (II) -ETSI GMM보고서를 중심으로-

  • 김형준
    • TTA 저널
    • /
    • 통권50호
    • /
    • pp.95-105
    • /
    • 1997
  • 본 고는 유럽 정보통신 표준화 선도기관인 ETSI(European Telecommunications Standards Institute)에서 발간한 GMM(Global Multimedia Mobility) 보고서로 향후 2000년대의 멀티미디어 이동통신 기술의 전망과 관련 표준화 추진방향을 그 내용으로 한다. 이에 필자는 상기 보고서의 내용을 중심으로 범유럽의 이동통신기술 현황과 향후 표준화추진 정책방향을 2회에 걸쳐 정리, 기술하고자 한다.

  • PDF

정보통신분야의 국제 표준화 협의체 - GSC, RAST를 중심으로 -

  • 김성원;윤용석;서동흠;차철호
    • TTA 저널
    • /
    • 통권58호
    • /
    • pp.85-95
    • /
    • 1998
  • 본 고에서는 ITU의 표준화 활동과 관련하여 정보통신 분야의 주도적 지역 표준화기구들이 참여하여 주요 표준화 과제에 대해 논의하고 있으며, 향후 ITU의 공식적 표준화 활동에 상당한 영향력을 행사할 것으로 예상되는 비공식 협의체인 GSC(Global Standards Collaboration)와 RAST(Radio Standardization)에 대해 소개하고자 한다.

  • PDF

전자무역 부문에서의 국내외 표준화 동향과 로드맵 연구 (A Study on the Trend and Roadmap of Standardization for e-Trade)

  • 심상렬
    • 한국디지털정책학회:학술대회논문집
    • /
    • 한국디지털정책학회 2005년도 춘계학술대회
    • /
    • pp.287-308
    • /
    • 2005
  • The purpose of this paper is to review the trend and roadmap of standardization for e-Trade. As a survival strategy in this rapidly changing global competition environment, domestic and global e-Trade network should be harmonized and interconnected, which requires multilateral or regional cooperation to set relevant inter-operable infrastructure. For this, standardization for e-Trade message and communication is critical success factor. Korea has been an early adopter of international e-Trade standards like UN/EDIFACT and ebXML. Based on the overall knowledge and experiences of e-Trade projects, Korea can take initiatives in the creation of global e-Trade through the harmonization and interconnection of other countries.

  • PDF

Development of a Three-Dimensional DNS Code for Study of Clean Agents -Two-Dimensional Simulation of Diluted Nonpremixed Counterflow Flames-

  • Park, Woe Chul;Hamins, A.
    • International Journal of Safety
    • /
    • 제1권1호
    • /
    • pp.18-23
    • /
    • 2002
  • A mixture fraction formulation is used to numerically simulate the structure of diluted axisymmetric methane-air nonpremixed counterflow flames. The effects of global strain rate and gravity wert! investigated and results were compared. Fuel of a mixture of 20% methane and 80% nitrogen by volume and oxidizer of pure air at low and moderate global strain rates $a_g= 20, 40, 80 s^{-1}$ in normal and zero gravity were computed. It is shown that the numerical method is capable of predicting the structure of counterflow flames in normal and microgravity environments at low and moderate global strain rates.