• 제목/요약/키워드: core concepts

검색결과 468건 처리시간 0.026초

XBRL 택사노미의 효과적인 재활용을 위한 컴포넌트 기반 전자문서 개발에 관한 연구 (Research on a Component-Based Method for Developing Electronic Documents for the Effective Reuse of XBRL Taxonomies)

  • 김형도;박찬권
    • Journal of Information Technology Applications and Management
    • /
    • 제15권4호
    • /
    • pp.61-76
    • /
    • 2008
  • As XBRL applications for sharing the contents and semantics of business reports get activated, it is increasingly necessary to reuse components systematically by the standardization in the national level. The current standardization of Korean electronic documents follows the "Guideline for XML Documents Development", which aims to maximize the reusability of components by providing a business library as well as the UN/CEFACT core components methodology. XBRL takes the same approach with the standardization of electronic documents in that their components (concepts and their structures) are defined using XSD. In XBRL, however, concept are restricted to specific types and diverse relationship types can be defined for associating the concepts to themselves and other additional information. As a result, there are some issues that may not be solved by just applying the guideline to XBRL. This paper presents a basic method for applying the methodology to XBRL applications in order to realize the systematic reusing and standardization of XBRL documents in the national level. For case analysis, FSS (Financial Supervisory Service) income statement is employed to demonstrate the possibility of the method.

  • PDF

Design of an Organic Simplified Nuclear Reactor

  • Shirvan, Koroush;Forrest, Eric
    • Nuclear Engineering and Technology
    • /
    • 제48권4호
    • /
    • pp.893-905
    • /
    • 2016
  • Numerous advanced reactor concepts have been proposed to replace light water reactors ever since their establishment as the dominant technology for nuclear energy production. While most designs seek to improve cost competitiveness and safety, the implausibility of doing so with affordable materials or existing nuclear fuel infrastructure reduces the possibility of near-term deployment, especially in developing countries. The organic nuclear concept, first explored in the 1950s, offers an attractive alternative to advanced reactor designs being considered. The advent of high temperature fluids, along with advances in hydrocracking and reforming technologies driven by the oil and gas industries, make the organic concept even more viable today. We present a simple, cost-effective, and safe small modular nuclear reactor for offshore underwater deployment. The core is moderated by graphite, zirconium hydride, and organic fluid while cooled by the organic fluid. The organic coolant enables operation near atmospheric pressure and use of plain carbon steel for the reactor tank and primary coolant piping system. The core is designed to mitigate the coolant degradation seen in early organic reactors. Overall, the design provides a power density of 40 kW/L, while reducing the reactor hull size by 40% compared with a pressurized water reactor while significantly reducing capital plant costs.

탄재를 포함한 산화철 펠릿 소성 공정 수치 모델의 입자 반응 모델 적용 (A discussion on the application of particle reaction model for iron ore pellet induration process modeling)

  • 안형준;최상민
    • 한국연소학회:학술대회논문집
    • /
    • 한국연소학회 2014년도 제49회 KOSCO SYMPOSIUM 초록집
    • /
    • pp.165-166
    • /
    • 2014
  • The application of particle reaction model in the packed bed process modeling is discussed for iron ore pellet induration process. Combustion of coke breeze in the pellet is estimated by using shrinking unreacted-core model and grain model in which the progress of chemical reaction is described in different concepts. Under the identical inlet gas and solid conditions, the calculation using shrinking core model showed deviated results in terms of temperature profile and conversion fraction, which may imply the significance of selecting proper particle reaction model in consideration of particle characteristics and process operation conditions.

  • PDF

A Subchannel Analysis Code for LMR Core Subassembly Thermal Hydraulic Analysis: The MATRA-LMR

  • Lim, Hyun-Jin;Kim, Young-Gyun;Kim, Yeong-Il;Oh, Se-Kee
    • 에너지공학
    • /
    • 제12권4호
    • /
    • pp.281-288
    • /
    • 2003
  • The MATRA-LMR code has been developed based on a subchannel analysis method for LMR (Liquid Metal Reactor) core subassembly thermal hydraulic design and analysis. The code was improved to allow a seven assembly calculation and can account for inter-assembly heat transfer based on a lumped parameter model. This paper describes the main modifications and improvements of the code and shows reference calculation results which compared single assembly calculation with seven assembly calculation cased for driver and blanket subassemblies of the KALIMER 150 MWe breakeven conceptual design core. KAL- IMER is a pool-type sodium cooled reactor with a thermal output of 392.0 MWth, which have inherently safe, environmentally friendly, proliferation-resistant and economically viable reactor concepts.

Global Service Innovation: A Case Study of Ajisen Ramen

  • CHO, Myungrae
    • The Journal of Asian Finance, Economics and Business
    • /
    • 제8권3호
    • /
    • pp.967-976
    • /
    • 2021
  • This study aimed to investigate the mechanism by which service companies transfer their services overseas and create new value while interacting with local characteristics. A narrative analysis method was used in a case study of Ajisen Ramen, a Japanese service company that created a Japanese-style ramen restaurant, which experienced rapid growth in China. This study analyzed the restaurant as global service innovation and constructed a causal mechanism to explain the resulting rapid growth. In the pre-entry stage, the tangible value source core service facilitated its successful overseas transfer. In the post-entry stage, value source core service standardization and value sharing were interrelated and locally accepted factors. Knowledge of the local characteristics influenced the local storefront format that allowed contact with local customers. This local front format made it possible to offer local customers new value. The global service innovation mechanism developed through this study reflects a causal diagram that correlated the theoretical concepts of these events.

도서관. 정보학교육의 공통핵심영역에 관한 연구

  • 송영선
    • 한국도서관정보학회지
    • /
    • 제8권
    • /
    • pp.97-126
    • /
    • 1981
  • The professional duties of librarians and other information workers involve a generalized body of both theoretical and practical knowledge (the so-called, 'common core') which is a n.0, pplicable worldwide without regard to national boundaries, levels of economic and technical development or cultural context. The current study is an attempt to validate and su n.0, pport this common core concept through a detailed examination of its important role in the sound development of library and information science both as a learned subject and as a profession. Following an initial overview of generally agreed upon core areas in the education and training of librarians and information specialists, with particular attention to the manifold social changes rapidly being effected by computers and communication technology, the focus shifts to the proliferation of academic homes for information science education and its implications for core areas in information science. Of note here is the relationship between information science as a broadly accepted social science discipline and the evolving core curriculum in library schools. To this regard the fact that the popularization of computers and communication technology is increasingly blurring the once-sharp differences between traditional librarians and information specialists naturally favors common core concept. Major figures in library and information science education such as Shera, Saracevic and Foskette su n.0, pport this concept and have already identified its theoretical infrastructure. Finally, UNESCO and IFLA are also stressing the common core cure curriculum for library and information science both as guidelines for the Third World and as a means to achieve universally accepted academic standards. In conclusion, the search for a comprehensive common core curriculum in library and information science education is still in the elementary stages. The task of identifying the components of this common core is among the most crucial responsibilities facing today's educators and professionals for the successful elaboration of a common core would enable us to attain three highly desirable professional goals: 1) To determine the basic concepts and principles of library and information science. 2) To serve as the base for further professional education and specialized research. 3) To offer enhanced o n.0, pportunities for integrated library and information science education programs by providing a genuine two-way communication channel between the library and information science professions.

  • PDF

역량기반 간호교육과정을 위한 핵심역량 모델링 (Modeling Core Competencies in the Competency-based Nursing Curriculum)

  • 김정아;고자경
    • 한국산학기술학회논문지
    • /
    • 제16권11호
    • /
    • pp.7635-7647
    • /
    • 2015
  • 본 논문은 간호사의 역량을 규명하고, 전체 간호업무의 80%를 통제할 수 있는 20%의 핵심간호역량을 도출하여 이를 기반으로 하는 간호교육과정 개발을 위한 간호역량을 모델링하기 위해 시도되었다. 각종 역량 관련 문헌고찰을 통하여 역량기반 교육과정, 역량 및 간호역량의 개념을 확인하고, 간호역량의 개념에 부합하는 각종 간호역량을 열거 및 유목화 하여 이들 간의 관계를 규명하였다. 또한 각종 역량 모델링의 방법을 검토하여 이를 토대로 역량기반 간호교육과정에 고유한 핵심역량 모델의 예시적 개념 지도를 제시하였다. 역량기반 간호교육과정을 위한 핵심역량은 기저역량, 실무역량, 인성역량으로 대별되고 기저역량은 전공(이론+실기)과 간호술로 역량의 기본이 된다. 실무역량은 임상적 판단, 대상자 교육, 의사소통, 환자 안전, 질 향상, 병동 및 자원 관리 등으로 구성되며 인성역량은 리더십, 책임 인식, 협력, 정책변화 대응 등으로 이루어진다. 이들은 자기주도적 학습과 비판적 사고 능력을 통하여 지속적인 순환 관계를 유지한다. 결국 이러한 역량을 가진 간호사는 지식근로자로써 자기주도적 학습자이며 전문적이고 효율적인 의사소통가이다. 간호역량을 확정시키는 후속연구가 계속되어야 하며 실제 역량기반교육과정에 적용하여 성과를 측정하고 이를 다시 반영하는 과정이 지속적으로 이루어져야 함을 제언한다.

천문 교구를 활용한 HTE-STEAM 별자리 교육 프로그램 개발 연구 : 시공간 개념을 통한 미래 사회 핵심역량 함양을 중심으로 (Development of HTE-STEAM Constellation Education Program Using Astronomical Teaching Aid: Focused on Cultivating Core Competencies for Future Society through the Concept of Space and Time)

  • 조아라;김용기
    • 대한지구과학교육학회지
    • /
    • 제17권1호
    • /
    • pp.34-48
    • /
    • 2024
  • 세계적으로 역량중심 교육이 주목됨에 따라, 교육부는 2015 개정 교육과정에서 창의융합형 인재가 갖춰야 할 미래 사회 핵심역량 6가지를 제시하였다. 본 연구에서는 2015 개정 교육과정에 제시된 미래 사회 핵심역량을 함양하고, 천문 영역 실험·실습의 한계를 보완하기 위해 HTE-STEAM 별자리 교육 프로그램을 개발하였고 그 효율성을 파일럿 테스트를 통해 확인하였다. 개발한 프로그램은 학교 밖 교육 현장인, 충청북도 청주시 소재의 G 도서관에서 초등 3~6학년 학생들을 대상으로 적용하였다. 연구의 결과는 다음과 같다. 첫째, HTE-STEAM 별자리 교육 프로그램은 STEAM 태도 검사의 '자아 개념'을 제외한 모든 구인에서 통계적으로 유의미한 효과를 보였으며, 특히 '이공계 진로선택', '배려', '소통'에서 높은 효과를 보였다. 따라서 미래 사회 핵심역량 중 '창의적 사고 역량'과 '의사소통 역량', '공동체 역량'의 함양에 긍정적인 결과를 도출하였다. 둘째, HTE-STEAM 별자리 교육 프로그램은 시공간이라는 어려운 개념을 다루었으나, 수업 내용의 난이도가 쉽다고 응답한 학생들이 많고, 배운 공간개념을 응용하여 교구를 활용한 것으로 보아, 학생들의 하늘과 우주의 공간 구조에 대한 이해에 효과적이었다. 덧붙여, 본 프로그램은 2022 개정 교육과정에서 추가된 하늘의 공간적 구조에 대한 성취기준을 충족하는 교육 프로그램으로 활용될 수 있을 것으로 보인다. 따라서 HTE-STEAM을 기반으로 한 별자리 교육 프로그램은 미래 사회 핵심 역량의 함양에 긍정적인 효과를 보였으며, 학교 환경에서 천문 영역의 야간 관측 실습을 보완하는 역할을 할 수 있을 것으로 보인다.

공학계열 학생 핵심역량 진단도구 개발 및 타당화 연구 (Development and Validation of Core Competency Assessment Tools for Engineering Student)

  • 김윤영;윤지영
    • 공학교육연구
    • /
    • 제24권4호
    • /
    • pp.3-20
    • /
    • 2021
  • As we have become more interested in 'competency' that means ability to do something around the world, the competency of the best performers has also been introduced in the university curriculum as a concept of core competency. Research continues on why this competency-based education is needed compared to existing academic-oriented education, how it can be introduced into existing curricula, and how it can be developed and evaluated in detail. This study develops and validates core competency assessment tools that can diagnose core competencies of engineering students. Therefore, this research paper conducted a literature review related to core competencies and also core competency assessment tools of university students. It seeks to explore the implications of core competency assessment tools for engineering students and then lay the foundation for competency-based teaching and learning at engineering colleges. And also it defines the concepts of core competencies and each core competency of engineering students through prior research analysis of competence, core competence, and core competence of university students. The primary core competency assessment tool consisted of sub-factors and questions of core competencies. It were modified through the expert validation of the primary one and then it was used as a core competency assessment tools for preliminary investigation. The core competency assessment tools for engineering students are consisted of 6 competencies, 22 sub-factors, and 91 questions. There are core competencies as follows: engineering basic competencies, major engineering competencies, self-management competencies, communication competencies, interpersonal competencies, global competencies. The preliminary survey was conducted on 426 engineering students attending the Engineering Education FESTA 2019. The preliminary findings were derived by conducting exploratory factor analysis, confirmatory factor analysis, question characteristics analysis, and reliability analysis for validation. The core competency assessment tools developed through this study can be used to verify the effectiveness of the curriculum and programs for students at engineering colleges. In addition, the developed core competencies, sub-factors, and questions can be utilized in a series of courses that design, conduct, and evaluate engineering curricula and programs as competency-based curriculum. The significance of this study is to lay the groundwork for providing competency-based education engineering students to develop core competencies.

슬리브드 폴리머 발사체의 충격시 벌징 거동 패턴에 미치는 코어 재료의 영향 (Influences of Core Materials during Impact The Bulging Behavior of Sleeved Polymer Projectiles)

  • 신형섭;박성택;정윤철
    • 대한기계학회:학술대회논문집
    • /
    • 대한기계학회 2008년도 추계학술대회A
    • /
    • pp.198-203
    • /
    • 2008
  • In the present study, the deformation behavior of both of metal and polymer combination on impact was investigated. They have showed a different deformation behavior when the co-axially combined projectile was impacted on rigid target. The theory according to Taylor's simplified approach assumes an ideally rigid-plastic material model exhibiting rate-independent behavior and simple one-dimensional wave propagation concepts that neglect radial inertia. In the case of impact with polymeric materials, elastic strain in general are not negligible compared with plastic strain; and the rigid-plastic material behavior assumed by Taylor for metallic materials cannot be applied any more. Since, the sleeve and the core materials have widely different mechanical properties, they will produce a significant difference of mechanical impedance with each other. Therefore these impedance mismatch influences on the deformation behavior sleeved polymer projectile on impact. As a result, sleeved projectiles will generate a very interesting impact behavior. Therefore, the according to sleeved metal material and core polymer material can see expected. The objective of this study was to investigate the factors which influences on deformation behavior pattern of sleeve materials surface.

  • PDF