• 제목/요약/키워드: Knowledge state analysis methods

검색결과 120건 처리시간 0.031초

Research on Embodied Carbon Emission in Sino-Korea Trade based on MRIO Model

  • Song, Jie;Kim, Yeong-Gil
    • Journal of Korea Trade
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    • 제25권2호
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    • pp.58-74
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    • 2021
  • Purpose - This paper research on the embodied carbon emission in Sino-Korea trade. It calculates and analyzes the carbon emission coefficient and specific carbon emissions in Sino-Korea trade from 2005 to 2014. Design/methodology - This paper conducted an empirical analysis for embodied carbon emission in Sino-Korea trade during the years 2005-2014, using a multi-region input-output model. First, direct and complete CO2 emission coefficient of the two countries were calculated and compared. On this basis, combined with the world input-output table, the annual import and export volume and sector volume of embodied carbon emission are determined. Then through the comparative analysis of the empirical results, the reasons for the carbon imbalance in Sino-Korea trade are clarified, and the corresponding suggestions are put forward according to the environmental protection policies being implemented by the two countries. Findings - The results show that South Korea is in the state of net trade export and net embodied carbon import. The carbon emission coefficient of most sectors in South Korea is lower than that of China. However, the reduction of carbon emission coefficient in China is significantly faster than that in South Korea in this decade. The change of Korea's complete CO2 emission coefficient shows that policy factors have a great impact on environmental protection. The proportion of intra industry trade between China and South Korea is relatively large and concentrated in mechanical and electrical products, chemical products, etc. These sectors generally have large carbon emissions, which need to be noticed by both countries. Originality/value - To the best knowledge of the authors, this study is the first attempt to research the embodied carbon emission of ten consecutive years in Sino-Korea Trade. In addition, In this paper, some mathematical methods are used to overcome the error problem caused by different statistical caliber in different databases. Finally, the accurate measurement of carbon level in bilateral trade will provide some reference for trade development and environmental protection.

The Role of Education Information in Training Specialists at Universities in the USA, Great Britain and Ukraine

  • Mamchych, Olena;Chornobryva, Natalia;Karskanova, Svitlana;Vlasenko, Karina;Syroiezhko, Olha;Zorochkina, Tetiana;Chychuk, Antonina
    • International Journal of Computer Science & Network Security
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    • 제22권11호
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    • pp.43-50
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    • 2022
  • A comparative analysis of the state and results of the functioning of the education system of Ukraine with the national educational systems of the USA and Great Britain was carried out. Based on which we found out similar and different in the process of developing the system of training specialists in higher education institutions of the USA, Great Britain, and Ukraine. Describing the main quantitative indicators of education in the UK, USA and Ukraine, we found common features and distinctive features. Consideration in the comparative aspect of trends in the development of higher teacher education in the United States, Great Britain and in Ukraine gives grounds for conclusion. For these countries, such groups of norms as types of educational institutions, forms of Education; introduction of a unified system of credit units in order to create conditions for broad mobility of students; availability of different levels of training; study of the best experience of educational activities of other states and its introduction into the educational process in combination with the cultural traditions of Ukraine coincide. Describing the main quantitative indicators of education in the analyzed countries, we found distinctive features.Teacher development systems in the UK, USA and Ukraine are compared. It was found out that the use of methods of Great Britain and the United States on the organization of independent work in the process of professional development of teachers will have a positive impact on training in the system of advanced training of teachers in Ukraine. The article examines the information culture of future specialists, which is based on knowledge about the information environment, the laws of its functioning and development, and the perfect ability to navigate the limitless modern world of information.

Study on the Microstructural Degradation of the Boiler Tubes for Coal-Fired Power Plants

  • Yoo, Keun-Bong;He, Yinsheng;Lee, Han-Sang;Bae, Si-Yeon;Kim, Doo-Soo
    • KEPCO Journal on Electric Power and Energy
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    • 제4권1호
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    • pp.25-31
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    • 2018
  • A boiler system transforms water to pressured supercritical steam which drives the running of the turbine to rotate in the generator to produce electricity in power plants. Materials for building the tube system face challenges from high temperature creep damage, thermal fatigue/expansion, fireside and steam corrosion, etc. A database on the creep resistance strength and steam oxidation of the materials is important to the long-term reliable operation of the boiler system. Generally, the ferritic steels, i.e., grade 1, grade 2, grade 9, and X20, are extensively used as the superheater (SH) and reheater (RH) in supercritical (SC) and ultra supercritcal (USC) power plants. Currently, advanced austenitic steel, such as TP347H (FG), Super304H and HR3C, are beginning to replace the traditional ferritic steels as they allow an increase in steam temperature to meet the demands for increased plant efficiency. The purpose of this paper is to provide the state-of-the-art knowledge on boiler tube materials, including the strengthening, metallurgy, property/microstructural degradation, oxidation, and oxidation property improvement and then describe the modern microstructural characterization methods to assess and control the properties of these alloys. The paper covers the limited experience and experiment results with the alloys and presents important information on microstructural strengthening, degradation, and oxidation mechanisms.

디스크질환과 언더라이팅 -보장급부를 중심으로 고찰한 생명보험 언더라이터의 제안- (Disc and underwriting - A proposal of life underwriter in terms of insurance benefits -)

  • 변혜진
    • 보험의학회지
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    • 제27권2호
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    • pp.96-106
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    • 2008
  • 다음은 위의 모든 결과를 바탕으로 디스크 질환의 입원기간이 길어지고 재발이 일어날 수 있는 나쁜 조건 (NEGATIVE)과 그 반대인 좋은 조건(Positive)을 table로 정리하였다. 좋은 조건은 같은 추간판 탈출 기왕력자라고 하더라도 예후에 긍정적인 가능성을 주는 조건이다. 따라서 심사할 때 table를 토대로 고지내용이 좋은 조건인지, 나쁜 조건인지 판단 할 수 있고 추가 질문사항을 요청하는데 도움이 될 수 있을 것이다. 만약 입원을 했더라도 며칠을 입원했는지. 재수술을 하였다면 어떻게 했는지, 직장인의 경우 현재 어떤 조건인지, 수술을 했다면 구체적으로 수술명이 무엇인지, 수술 후 술, 담배를 하였는지, 수술 후 현재 상태가 어떤지에 따라 인수 여부를 결정하는데 도움이 될 것이라고 생각한다.

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Perceptions of Turkish University Students about the Effects of Water Pipe Smoking on Health

  • Sahin, Sevil;Cinar, Nursan
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권11호
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    • pp.4615-4621
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    • 2015
  • Background: The popularity of the water pipe, also referred to as hookah, narghile, shisha or hubble-bubble, has increased tremendously during the past few decades. This study was conducted to determine student water pipe smoking status and perceptions about the effects of water pipe smoking on health in a state university in Ankara. Materials and Methods: This cross-sectional study was conducted between September 2014 and January 2015. The data were collected with a questionnaire and "The Scale of Perception about the Effects of Water Pipe Smoking on Health". The data obtained were evaluated in IBM SPSS (version 20.0) statistical package program in computer. One-way analysis of variance (ANOVA) was used for the analyses by checking homogeneity of variances and Student's t-test. Values of p<0.05 were considered statistically significant. Results: The total mean score obtained by young people who took part in the study was determined as ($\bar{X}=65.20{\pm}1.25$, min=33, max=75). Upon comparison of the total mean scores obtained by young people from the Scale of Perception about the effects of water pipe smoking on health and gender variable, the scores obtained by the females students were higher than those of the male students with a statistically significant difference (t=7.525, p<0.05). A statistically significant difference was observed between the total mean scores obtained by young people with cigarette and water pipe smoking status (for each, t=-3.731, p<0.05; t=-13.987, p<0.05). Conclusions: In conclusion, university students have wrong knowledge on the dangers of water pipe smoking. There was a high prevalence of using water pipes among university students. Gender significantly affected the perceptions about the effect of water pipe smoking on health in our sample.

SGML 표기법을 이용하는 수식 편집기의 설계 및 구현 (An Implementation of Mathematics Editor Using SGML Notation)

  • 김태훈;현득창;이수연
    • 한국정보처리학회논문지
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    • 제3권5호
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    • pp.1082-1092
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    • 1996
  • 현재, 과학, 기술 문서 등에 많은 사용되는 수식의 표기법이 TeX, EQN등과 같이 가특정 시스템에 의존하여 시스템간의 상호교환이 안되고 있다. 따라서 본 논문에서는 워드프로세서나 전자출판등에서 작성되는 수식 정보의 공유 및 시스템간 상호 교환성 을 확보하기 위하여, 국제 표준 SGML 표기법으로 수식을 표현할 수 있고, 또한 수식용 문서형 정의(Document Type Definition)에 따라 수식 구조의 오류 검사 기능을 갖는 대화형 수식 편집기의 설계 및 구원을 한다. 사용자 접속으로는 수식 심볼 아이콘에 대한 마우스 입력과 키보드 입력 등의 직접 조작 방식을 구현하였다. 구현 환경으로는 워크스테이션 상에서 UNIX를 운영 체제로 하는 X 윈도우 시스템과 그래픽컬 사용자 접속인 OSF Motif를 사용하였고 메뉴 및 화면 구성을 위하여 OSF UIL(User Interface Language)을 사용하였다.

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다수모델을 이용한 객체지향적 분산처리 시스템의 디자인 방법 (Integrated Modeling of Distributed Object-Oriented Systems)

  • 이상범
    • 한국정보처리학회논문지
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    • 제3권5호
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    • pp.1103-1111
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    • 1996
  • 하드웨어와 통신 기술의 발달로 가능하게 된 분산처리 시스템은 수행 방식이 비결 정적이고 복잡하기 때문에 소프테웨어의 디자인이 비분산처리 시스템에 비해 복잡하고 또한 까다롭다. 따라서 하드웨어에 비해 상대적으로 뒤져있는 분산처리 시스템 소프 트웨어 개발을 위한 디자인 방법에 관한 연구에 대한 필요성이 높아지고 있다. 한편 객체향 시스템과 분산처리 시스템은 상호 유사한 점이 있어, 분산처리 시스템 개발에 객체지향 기술의 적용은 자연스럽게 이루어질 수가 있다. 본고에서는 분산에서는 분산처리 시스템 설계를 위한 객체지향 기술의 적용에 대하여 소개하고 있다. 제안된 설계방법은 다양한 그래픽 모델, 즉, 자료구조도, 상태전이도 그리고 패트리 네트의 정보를 조합하여 객체와 행위 그리고 이들 간의 관계에 대한 정보를 추출하여 분산 처리 시스템에 적합한 명세서를 산출하고자 한다. 지식베이스를 정보저장소로 이용 하여정보의 저장, 검색 뿐만 아니라, 정보의 오류 연구를 검증할 수가 있다. 본 방법의 최종 결과인 객체모델은 디자인 명세서로서 분산처리프로그램 개발에 사용된다.

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부모가 자녀에게 행하는 구강건강관리행동에 따른 아동의 구강건강상태 (The oral health status of the preschool child according to the oral health management behaviors performed by their parents)

  • 최하나;이지원;이성민
    • 한국치위생학회지
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    • 제17권6호
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    • pp.1225-1235
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    • 2017
  • Objectives: The purpose of this study is to examine the effects of parents' oral health management behavior towards children on children's oral health. Methods: Dental examination were done to 82 children, and a survey was conducted to 82 parents of them. This researcher conducted multiple regression analysis to figure out how parents' oral health management behavior towards their children influences their oral health condition. Results: Among the kinds of parents' oral health management behavior towards their children, when they received a lower score in guidance for dietary control, children tended to have more dt index. Among the kinds of parents' oral health management behavior towards their children, guidance for tooth brushing and guidance for oral care influenced their children's O'leary index. When they received a higher score in guidance for tooth brushing and guidance for oral care, their children's O'leary index became lower. Conclusions: This study has found that parents' dietary guidance provided to children influences their dt index, and O'leary index, one of the major causes of dental caries, is influenced by parents' guidance for tooth-brushing and guidance for oral care. Therefore, we should realize that according to the degree of parents' interest in children's oral care, children's state of oral health can be changed, and parents should acquire proper knowledge about oral health and instruct and train their children desirably.

Analysis of CHAMP Magnetic Anomalies for Polar Geodynamic Variations

  • Kim Hyung Rae;von Frese Ralph R.B.;Park Chan-Hong;Kim Jeong Woo
    • 대한원격탐사학회지
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    • 제21권1호
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    • pp.91-98
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    • 2005
  • On board satellite magnetometer measures all possible magnetic components, such as the core and crustal components from the inner Earth, and magnetospheric, ionospheric and' its coupled components from the outer Earth. Due to its dipole and non-dipole features, separation of the respective component from the measurements is most difficult unless the comprehensive knowledge of each field characteristics and the consequent modeling methods are solidly constructed. Especially, regional long wavelength magnetic signals of the crust are strongly masked by the main field and dynamic external field and hence difficult to isolate in the satellite measurements. In particular, the un-modeled effects of the strong auroral external fields and the complicated behavior of the core field near the geomagnetic poles conspire to greatly reduce the crustal magnetic signal-to-noise ratio in the polar region relative to the rest of the Earth. We can, however, use spectral correlation theory to filter the static lithospheric and core field components from the dynamic external field effects that are closely related to the geomagnetic storms affecting ionospheric current disturbances. To help isolate regional lithospheric anomalies from core field components, the correlations between CHAMP magnetic anomalies and the pseudo-magnetic effects inferred from satellite gravity-derived crustal thickness variations can also be exploited, Isolation of long wavelengths resulted from the respective source is the key to understand and improve the models of the external magnetic components as well as of the lower crustal structures. We expect to model the external field variations that might also be affected by a sudden upheaval like tsunami by using our algorithm after isolating any internal field components.

조계종 총무원 보존기록물 정리방법에 대한 사례연구 (A Case Study on Arranging Archives of Administrative Headquarters of the Jogye Order)

  • 이아현
    • 기록학연구
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    • 제6호
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    • pp.121-160
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    • 2002
  • This paper reports the project of arranging archives of Administrative Headquarters of the Jogye Order. It illustrates the whole process of preliminary survey, arrangement, appraisal and description of the archives. One of the distinctive features of the project lies in its focus on practical considerations. In other words, it has avoided blindly following theoretical recommendations made by previous efforts. First step of the project has been to review the current state of the archives through preliminary survey as well as analysis of related regulations. Second step has followed to establish actual process of classifying, appraising, describing, filing and designing storage facility management as well as a computerized archival management system. In this process, every concern has been given to prevent records and archives from physical damage and to ensure their intellectual order kept so that archival information could be re-constructed and usability and efficiency of the records could be secured. Major contributions made by the project can be found in that it has reviewed the volume of administrative archives created and held by Jogye Order and improved the overall efficiency of as well as information sharing among personnel at the Headquarter. The most notable accomplishment could be, however, found in that the project has helped the personnel to rediscover their own history from their records, rather than from their memory. From the theoretical perspective of archival science, the meaning of the project can also be found in that it has provided with the starting point toward establishing organizing methodology for organizational archives including religious archives. Arranging archives of an organization requires archivists to respect theories and principles, but at the same time, adequate attention should be paid to reflect idiosyncratic characteristics of the organization. General methods applicable to a wider range of archives could be derived from the very endeavor. Though impossible in a short period of time, it could be accomplished by accumulating theoretical and practical knowledge and experience.