• 제목/요약/키워드: Related standard

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Trend of Industry and Standard related to Offshore Cable for Offshore Wind Farm (해상풍력용 해저케이블 산업 및 기술기준 동향)

  • Kim, Kyung-Hwa;Song, Yong-Un;Kim, Mi-Young;Kim, Mann-Eung
    • Journal of Wind Energy
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    • v.3 no.2
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    • pp.11-17
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    • 2012
  • An offshore(submarine) cable has been used for more than a century, however it has been used mainly for communication or power supply to near-shore island. Therefore, offshore cable has not been got more attention than other types of cable and the related standards have also not been established well. However wind farms have been shifting from land to offshore because of better wind condition. Consequently, it has been pushing up demand for offshore cable. Hence, this paper introduces the trend of offshore cable industry and related standards or recommendations only focusing on offshore wind farm. In details, the installed offshore cables in offshore wind farms, the main offshore cable makers and up to date technologies are covered. In addition, the related standards or recommendations are also analyzed and compared each other.

A Study on the methodology of applying the CALS/EC Construction Drawing Information Exchange Standard(STEP) in Design Fields (CALS/EC 건설도면 정보교환 표준(STEP)의 설계분야 적용 방안에 관한 연구)

  • Kim In-han;Choi Jung-sik
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • autumn
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    • pp.163-168
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    • 2001
  • In the domestic construction field, there are a lot of problems related to construction information exchange and sharing owing to the absence of construction drawing information exchange standard. To solve the problems effectively, it is necessary to apply STEP standard that is international standard and standard technology for achieving the establishment of Construction CALS. This study focus on suggesting a methodology to solve problems which occur to the current construction drawing information exchanging and sharing practice. The domestic and foreign standardization projects related to the construction drawing information have been investigated and analyzed. In result, a methodology of applying the STEP standard has been suggested. In addition, a verification and certification methodology for applying the CALS/EC construction drawing information exchange standard(STEP) have been suggested.

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Improvement Strategies for the Standard Records Management System of Korea (표준기록관리시스템의 개선전략 연구)

  • Lee, So-Yeon
    • Journal of Korean Society of Archives and Records Management
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    • v.15 no.1
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    • pp.29-52
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    • 2015
  • The current study aims to propose strategies for the improvement of the Standard Records Management System of Korea. Here, benefits from the system and reasons of underusage were derived based on the results taken from the analysis of interviews and answers to open-ended questions in the system usage survey. Issues related to the nine main functions of the system were also reviewed in the process. With this, the improvement strategies related to the aforementioned issues are categorized as (1) simplification of functionalities, (2) quality assurance of records and metadata, (3) strengthening user assistance and communication, and (4) trust building between the National Archives of Korea and records centers of public institutions.

An Analysis of Thermal Loads Depending on Korea Building Insulation Standard and the Optimum Insulation Standard (국내 건물 단열기준에 따른 냉.난방 부하 분석 및 최적 단열기준에 관한 고찰)

  • Seo, Sung-Mo;Park, Jin-Chul;Rhee, Eun-Ku
    • Journal of the Korean Solar Energy Society
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    • v.31 no.5
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    • pp.146-155
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    • 2011
  • Sustainable building is getting more and more important topic in 21C. Following this trend, building energy saving standard has been reinforced in Korea. Especially, insulation standards are revised continuously after1979. This study aims to evaluate the correlation between the revised insulation standards and heating and cooling loads of a residential building. This study shows that the standard of insulation is more related with heating load than cooling load, and cooling load is more related with other sources such as glass types and solar incidence through windows. In case of highly-insulated building such Passive Houses or Zero Energy Houses, the cooling load should also be considered as important as heating load when revising the building energy saving regulations in the future.

Analysis on the Current Status of the Fourth Industrial Revolution-Oriented Curriculum of the Computer and Software-Related Majors Based on the Standard Classification (표준분류에 기준한 컴퓨터 및 소프트웨어 관련 전공의 제4차 산업혁명중심 교육과정 운영 현황 분석)

  • Choi, Jin-Il;Choi, Chul-Jae
    • The Journal of the Korea institute of electronic communication sciences
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    • v.15 no.3
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    • pp.587-592
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    • 2020
  • This paper analyzed the curriculum of computer and software-related majors educating the core IT-related skills needed for the 4th Industrial Revolution. The analysis was conducted on 158 majors classified as applied software, computer science and computer engineering according to the standard classification of university education units by the Standard Classification Committee of the Korean Council of University Education. The current status of introduction of curricular divided into the fields of Internet of Things(IoT) & mobile, cloud & big data, artificial intelligence(AI), and information security was analyzed among the contents of education in the relevant departments. According to the analysis, an average of 81.6% of the majors for each group of curricular organized related subjects into the curriculum. The Curriculum Response Index for the 4th industrial revolution(CRI4th) by major, calculated by weighting track operations by education sector, averaged 27.5 point out of 100 point. And the IoT & mobile sector had the highest score of 42.3 points.

Analysis of Environment-Related Investment Arbitration Cases under NAFTA and Their Implications for the Korea-U.S. FTA (NAFTA 환경관련 투자중재사건 분석과 한미 FTA에의 시사점)

  • Park, Deok-Young;Lee, Seu-Yeun
    • Journal of Arbitration Studies
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    • v.22 no.2
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    • pp.103-124
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    • 2012
  • Because the Korea-U.S. Free Trade Agreement (Korea-U.S. FTA) and the North American Free Trade Agreement (NAFTA) have an overlapping contracting party, the United States, their provisions have much in common. The investment chapters of these agreements, especially, show many similarities, and thanks to these similarities, it is likely that the Korea-U.S. FTA arbitration tribunal for investor-state disputes regarding the environment will put great weight on the NAFTA tribunals' interpretations of those similar provisions. Since the NAFTA tribunals have already handled many environment-related arbitration cases, their interpretations will help heighten the predictability of environment-related Korea-U.S. FTA arbitration cases. This paper analyzes the environment-related NAFTA cases in which the tribunal has issued an award, which are the Metalclad case, S.D. Myers case, Waste Management case, Methanex case, Glamis Gold case, and Chemtura case. According to this analysis, the most controversial NAFTA provisions have been Article 1102 (national treatment), Article 1105 (minimum treatment standard, fair and equitable treatment), and Article 1110 (expropriation). The NAFTA tribunals applied the requirement of these articles in a strict manner, reducing the possibility of finding a violation. After the aforementioned analysis, this paper proceeds to compare the national treatment, minimum treatment standard (fair and equitable treatment), and expropriation provisions of the Korea-U.S. FTA and NAFTA and to predict the impact that the environment-related awards under NAFTA can have on environment-related Korea-U.S. FTA cases. It is expected that the NAFTA interpretations of the national treatment and minimum treatment provisions are likely be used as they are, but not the interpretations of expropriation, because of the differences in the expropriation provisions of the two agreements.

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Linkage between Trade and SPS Measure through Establishment of Reasonable-Regulator Approach to Judicial Review : Focusing on US-Hormones Suspension Case (합리적 규제자 기준의 확립을 통한 무역과 위생검역조치의 조화 - US-Hormones Suspension 사건을 중심으로 -)

  • Lee, Ju-Young;Lee, Eun-Sup
    • International Commerce and Information Review
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    • v.13 no.3
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    • pp.403-431
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    • 2011
  • The environmental issues including domestic measures to protect public life or health are generally easy to bring the tension between the WTO and its member countries. The standard of review, whether de novo review, total deference, or somewhere in between, is largely important in the WTO's adjudicating mechanism because it is closely related to the appropriate balance of power between sovereign nations and the WTO: The multilateral trading regime, through the proper standard of review, could harmoniously operated without interest conflicts among the member countries and at the same time between the WTO and the member countries. Irrespective the important function of the standard of review in the WTO judicial system, applicable standard of review has not been established in the current SPS Agreement. Furthermore, the nature of the SPS Agreement related in scientific factors, such as scientific experiment, data and assessment prevents the WTO's panel from applying consistent standard of review. Considering the judicial demand for the moderate treatment of the case under the SPS Agreement, this paper explores appropriate standard of review applicable the SPS-related environmental measures, particularly, by analysing the recent SPS-related dispute, US-Hormones Suspension.

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CT Fractional Flow Reserve for the Diagnosis of Myocardial Bridging-Related Ischemia: A Study Using Dynamic CT Myocardial Perfusion Imaging as a Reference Standard

  • Yarong Yu;Lihua Yu;Xu Dai;Jiayin Zhang
    • Korean Journal of Radiology
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    • v.22 no.12
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    • pp.1964-1973
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    • 2021
  • Objective: To investigate the diagnostic performance of CT fractional flow reserve (CT-FFR) for myocardial bridging-related ischemia using dynamic CT myocardial perfusion imaging (CT-MPI) as a reference standard. Materials and Methods: Dynamic CT-MPI and coronary CT angiography (CCTA) data obtained from 498 symptomatic patients were retrospectively reviewed. Seventy-five patients (mean age ± standard deviation, 62.7 ± 13.2 years; 48 males) who showed myocardial bridging in the left anterior descending artery without concomitant obstructive stenosis on the imaging were included. The change in CT-FFR across myocardial bridging (ΔCT-FFR, defined as the difference in CT-FFR values between the proximal and distal ends of the myocardial bridging) in different cardiac phases, as well as other anatomical parameters, were measured to evaluate their performance for diagnosing myocardial bridging-related myocardial ischemia using dynamic CT-MPI as the reference standard (myocardial blood flow < 100 mL/100 mL/min or myocardial blood flow ratio ≤ 0.8). Results: ΔCT-FFRsystolic (ΔCT-FFR calculated in the best systolic phase) was higher in patients with vs. without myocardial bridging-related myocardial ischemia (median [interquartile range], 0.12 [0.08-0.17] vs. 0.04 [0.01-0.07], p < 0.001), while CT-FFRsystolic (CT-FFR distal to the myocardial bridging calculated in the best systolic phase) was lower (0.85 [0.81-0.89] vs. 0.91 [0.88-0.96], p = 0.043). In contrast, ΔCT-FFRdiastolic (ΔCT-FFR calculated in the best diastolic phase) and CT-FFRdiastolic (CT-FFR distal to the myocardial bridging calculated in the best diastolic phase) did not differ significantly. Receiver operating characteristic curve analysis showed that ΔCT-FFRsystolic had largest area under the curve (0.822; 95% confidence interval, 0.717-0.901) for identifying myocardial bridging-related ischemia. ΔCT-FFRsystolic had the highest sensitivity (91.7%) and negative predictive value (NPV) (97.8%). ΔCT-FFRdiastolic had the highest specificity (85.7%) for diagnosing myocardial bridging-related ischemia. The positive predictive values of all CT-related parameters were low. Conclusion: ΔCT-FFRsystolic reliably excluded myocardial bridging-related ischemia with high sensitivity and NPV. Myocardial bridging showing positive CT-FFR results requires further evaluation.

Analysis of International Trend on the Standard for Power System Connection of V2G System (V2G 시스템의 계통연계에 대한 국제 표준 동향 분석)

  • Lee, Soon-Jeong;Kim, Jun-Hyeok;Kim, Chul-Hwan;Kim, Gi-Hyun;Shin, Seong-Su
    • Proceedings of the KIEE Conference
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    • 2015.07a
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    • pp.1641-1642
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    • 2015
  • Recently, the interest about Vehicle-to-Grid(V2G) system which can use the electric vehicles as generation sources or storage devices has rapidly increased. However, this technology does not use widely yet, and there is no clear standard or regulation for it. If electric vehicles are connected to the power system indiscreetly, it can cause problem to personnel safety and adverse effect on the power system. Therefore, it is important to analyze the related standards. In this paper, we introduce some international standard related with V2G system.

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The practical analysis of the gap of ledger scaffolding - focus on Pipe scaffolding - (강관비계 띠장 간격의 실무적 해석 - 단관비계 중심으로 -)

  • Bae, Jun-Tae;Kim, Chi-Gyeong
    • Proceedings of the Safety Management and Science Conference
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    • 2012.04a
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    • pp.301-311
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    • 2012
  • The law(construction standard specification, construction, standard-work regulation, Industry safety standard related regulation) related to the installation of scaffolding being used commonly on the construction site is regulated that the gap of ledger is within 1.5m and first ledger is within 2m. The gap of ledger here is essential for the stability of scaffolding structure. But it is determined that it is possible for the gap of ledger is applied by explaining safety handrail as ledger, because of the fact that in current, on the construction site, safety handrail is installed with the material of scaffolding ledger as a steel tube pipe. On this study, it is aimed to guarantee the safety by analyzing the ledger of scaffolding practically and prevent the accident of manager and laborer through the actualization.

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