• 제목/요약/키워드: core concepts

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국가수준 학업성취도 평가의 서답형 문항을 이용한 중학교 과학 8개 핵심 개념에 대한 학습발달과정 탐색 (Exploring a Learning Progression for Eight Core Concepts of Middle School Science Using Constructed Response Items in the National Assessment of Educational Achievement (NAEA))

  • 이기영;동효관;최원호;권경필;이인호;김용진
    • 과학교육연구지
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    • 제41권3호
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    • pp.382-404
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    • 2017
  • 이 연구에서는 2015년 국가수준 학업성취도 평가(NAEA)의 서답형 문항을 이용하여 중학교 과학 교과의 8개 핵심 개념에 대한 학습발달과정을 탐색하고자 하였다. 이를 위해 2015년 실시된 NAEA 서답형 8개 문항에 대한 중학교 3학년 7,390명의 응답 결과를 전산으로 입력하고 입력된 답안을 분석하여 수준별로 유형화하는 과정을 거쳤다. 이 과정을 마친 후 각 평가 구인별로 5개 수준을 설정하여 구인구성도를 작성하였다. 이 연구에서의 구인구성도는 발달 기반의 루브릭 형식으로 작성되었는데, 전체 학생들의 답안에 대해 수준을 부여하는 준거로 활용되었다. 또한, 평가 결과로 얻은 학생들의 점수를 평가 구인에 대한 성취 수준과 연결하기 위하여 통계적 해석으로 응답자의 점수나 성취 정도를 측정하는 Rasch 모델을 적용하였다. 마지막으로, Rasch 모델 적용 결과를 반영하여 구인구성도를 수정한 예비 학습발달과정을 작성하였다. 이 연구는 NAEA의 서답형 문항을 활용하여 학습발달과정 개발 가능성을 탐색하였다는 데 의의가 있다. 하지만, 이 연구에서 작성된 예비 학습발달과정이 개별 학생들 대상으로 종적으로 추적한 것이 아니므로 여전히 가설적이며 추론적이다. 그러므로 반복적인 연구 과정을 통해 지속적으로 수정 및 보완될 필요가 있다.

유치원 교육과정 기반 영양·식생활 교육 내용 체계화: 질적 기초 연구 (Systematization of food and nutrition education content based on national kindergarten curriculum: a qualitative formative study)

  • 김정현;심유진;백은영
    • 대한지역사회영양학회지
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    • 제28권6호
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    • pp.509-522
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    • 2023
  • Objectives: This study is intended to develop a curriculum for kindergarten food and nutrition education aimed at preschool children, reflecting government policy and meeting the demands of preschool settings. Methods: Existing educational materials were analyzed, and key elements of the 2019 Revised Nuri Curriculum ("Nuri Curriculum") and Guidelines for Nutrition and Food Education in Kindergartens, Elementary, Middle, and High Schools ("Guidelines") were examined as foundational information for developing the curriculum for food and nutrition education. Results: Basing ourselves on the five domains of the Nuri Curriculum, "Physical Activity and Health," "Communication," "Social Relationships," "Art Experience," and "Natural Science Inquiry," we integrated three areas from the Guidelines, namely "Dietary Habits and Health," "Dietary Habits and Safety," and "Dietary Habits and Culture," to structure the curriculum for kindergarten food and nutrition education. Three specific domains, "Nutrition and Health," "Food and Culture," and "Safe Dietary Practices," were tailored for preschool children, each comprising core concepts, content elements, and educational materials. In the "Nutrition and Health" domain, core concepts such as "nutrition" were addressed through content elements such as "balanced eating" and "vegetables and fruit," while "health" included elements such as "eating regularly" and "nutrients for disease prevention," each with two educational content components. The "Food and Culture" domain focused on "food" with content on "local foods (vegetable-garden experience)" and "food culture" with content on "our dining table (rice and side dishes)," "our agricultural products," "global cuisine (multiculture)," and "considerate dietary practices," each with four educational content components. The "Safe Dietary Practices" domain included core concepts such as "hygiene" with content on "hand-washing habits" and "food poisoning management," and "safety" with content on "food labeling." Conclusions: The systematized curriculum for kindergarten food and nutrition education aligns with the Nuri Curriculum and is interconnected with the Guidelines. This curriculum can be used as foundational material for developing educational resources tailored to the characteristics of preschoolers, contributing to effective implementation in early childhood education.

빅데이터분석기반의 기술주도형 미래 국방무기체계 및 핵심기술 도출 방법연구 (A study on Technology Push-based Future Weapon System and Core Technology Derivation Methodology)

  • 강현규;박용준;박재훈
    • 품질경영학회지
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    • 제46권2호
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    • pp.225-242
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    • 2018
  • Purpose: Recent trends have shown that the usage of big data analysis is becoming the core of identifying promising future technologies and emerging technologies. Accordingly, applying these trends by analyzing defense related data in such sources as journals, articles, and news will provide crucial clues in predicting and identifying core future technologies that can be used to develop creative and unprecedented future weapon systems that could change the warfare. Methods: To identify technology fields that are closely related to the 4th industrial revolution and recent technology development trends, environmental analysis, text mining, and military applicability survey have been included in the process. After the identification of core technologies that are militarily applicable, future weapon systems based on these technologies as well as their operation concepts are suggested. Results: Through the study, 73 important trends, from which 11 mega trends are derived, are identified. These mega trends can be expressed by 13 promising technology fields. From these technology fields, 248 promising future technologies are identified. Afterwards, further assessment is performed, which leads to the selection of 63 core technologies from the pool. These are named as "future defense technologies" which then become the bases for 40 future weapons systems that the military can use. Conclusion: Predicting future technologies using text mining analysis have been attempted by various organizations across the globe, especially in the fields related to the 4th industrial revolution. However, the application of it in the field of defense industry is unprecedented. Therefore, this study is meaningful in that it not only enables the military personnel to see promising future technologies that can be utilized for future weapon system development, but helps one to predict the future defense technologies using the method introduced in the paper.

Job Competence of College Students in Korea: An Expansion of Core Competence Theory

  • Park, Cheol Kyun
    • Asian Journal of Innovation and Policy
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    • 제4권1호
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    • pp.55-75
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    • 2015
  • The purpose of this study is to find what competence determines the employment of college students using data from the K-CESA (Korea Collegiate Essential Skills Assessment) of a Korean university during 2009-2014. This test comprises of 6 categories of competence: self-management, global readiness, interpersonal relationship, resource/information/technology handling, communication and comprehensive reasoning. In addition to these competences, we add the comprehensive variable, grade point average. In order to identify the qualities of employment, employment was classified into 3 types: all employment, employment in decent jobs and employment in the top 500 companies. Results are as follows: For all employment and decent jobs, GPA and comprehensive reasoning were the meaningful variables. However in case of the top 500 companies, interpersonal relationship was added. Based on the analysis, this study suggests the fundamental concepts of college students' job competence: job specific competence, job basic competence, and basic competence.

음양균형의학으로서의 기능신경학(FN) 개요 (Introduction to the Functional Neurology, as a Yin-Yang Balance Based Approach)

  • 인창식
    • 턱관절균형의학회지
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    • 제7권1호
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    • pp.17-23
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    • 2017
  • Functional neurology is a function-oriented clinical neurology with a focus on the viability, functionality, and balance of the neurologic system, which may be considered as a form of yin-yang balance medicine like Korean medicine. While it incorporates knowledge systems such as developmental neurology, neuropsychology, comparative neuroanatomy, and others, it views the neurologic system and the body as an individually different, self-regulating mechanism with the help of the active balancing mechanism within the nervous system and between the individual and the environment, which view is at the core of its effort to improve and serve the human dignity based on the best possible functioning nervous system. This article reviews core concepts of the functional neurology, discusses yin-yang balance medicine perspectives and clinical applications of it.

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Review on Magnetic Components: Design & Consideration in VHF Circuit Applications

  • Yahaya, Nor Zaihar;Raethar, Mumtaj Begam Kassim;Awan, Mohammad
    • Journal of Power Electronics
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    • 제9권2호
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    • pp.180-187
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    • 2009
  • When converters operate in megahertz range, the passive components and magnetic devices generate high losses. However, the eddy current issues and choices of magnetic cores significantly affect on the design stage. Apart from that, the components' reduction, miniaturization technique and frequency scaling are required as well as improvement in thermal capability, integration technique, circuit topologies and PCB layout optimization. In transformer design, the winding and core losses give great attention to the design stage. From simulation work, it is found that E-25066 material manufactured by AVX could be the most suitable core for high frequency transformer design. By employing planar geometry topology, the material can generate significant power loss savings of more than 67% compared to other materials studied in this work. Furthermore, young researchers can use this information to develop new approaches based on concepts, issues and methodology in the design of magnetic components for high frequency applications.

Design of PKMS for Business Innovation based on Knowledge Management in Public Organization

  • 지승현
    • 한국컴퓨터정보학회:학술대회논문집
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    • 한국컴퓨터정보학회 2008년도 제38차 하계학술발표논문집 16권1호
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    • pp.243-249
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    • 2008
  • Based on a comprehensive framework that reflects lifecycle requirements of KMs and BPMs, we propose an PKMS(Process based KMS) for integrating KMs and BPMs in order to combine the advantages of the two paradigms. This paper first defines the priority order of knowledge according to knowledge type and classifies it into three groups which consist of Basic KM, Practical KM and Reference KM. Then, it suggests PKMS knowledge map composed of much core-knowledge each of which has information about a unit of the related business process. Using the PKMS Knowledge map, we can directly provide related core-knowledge related for the business process while a person is working a unit of business process. This paper designed the PKMS applied to employment insurance business part. Long term goal of the concepts is to concern a change management organization of knowledge on PKMS.

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A Critical Literature Analysis of Library and User Privacy

  • Noh, Younghee
    • International Journal of Knowledge Content Development & Technology
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    • 제7권2호
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    • pp.53-83
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    • 2017
  • This research aims at identifying through literature analysis the extent of past research related to the protection of personal information and privacy of library users. This study was conducted in 3 stages of literature analysis suggested by other researchers, including Powell (2005). First, I found and collected literature related to personal information and library user privacy. Second, I reviewed the collected literature and identified detailed subjects and core concepts. Third, I analyzed the core subjects, main discussion points, and related examples shown in those papers divided into 7 subgroups. I examine library privacy from various angles through literature analysis, and the results of this paper would be useful for establishing library privacy policies and developing guidelines for librarians.

Design and neutronic analysis of the intermediate heat exchanger of a fast-spectrum molten salt reactor

  • Terbish, Jamiyansuren;van Rooijen, W.F.G.
    • Nuclear Engineering and Technology
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    • 제53권7호
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    • pp.2126-2132
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    • 2021
  • Various research groups and private interprises are pursuing the design of a Molten Salt Reactor (MSR) as one of the Generation-IV concepts. In the current work a fast neutron MSR using chloride fuel is analyzed, specially analyzing the power production and neutron flux level in the Intermediate Heat Exchanger (IHX). The neutronic analysis in this work is based on a chloride-fuel MSR with 600 MW thermal power. The core power density was set to 100 MW m-3 with a core H/D [[EQUATION]] 1.0 amd four Intermediate Heat Exchanger (IHX). This leads to a power of 150 MW per IHX; this power is also comparable to the IHX proposed in the SAMOFAR framework. In this work, a preliminary design of a 150 MW helical-coil IHX for a chloride-fueled MSR is prepared and the fission rate, capture rate, and inelastic scatter rate are evaluated.

반려 로봇 (Life Companion Robots)

  • 김재홍;서범수;조재일;최정단
    • 전자통신동향분석
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    • 제36권1호
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    • pp.12-21
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    • 2021
  • This article presents the future vision and core technologies of the "Life Companion Robot," which is one of the 12 future concepts introduced in the ETRI Technology Roadmap published in November 2020. Assistant robots, care robots, and life support robots were proposed as the development stages of life companion robots. Further, core technologies for each of the ten major roles that must be directly or indirectly performed by life companion robots are introduced. Finally, this article describes in detail three major artificial intelligence technologies for autonomous robots.