• Title/Summary/Keyword: knowledge-base

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A Study on Solving Circumference of Plane Figure (평면도형의 둘레 문제 해결에 관한 제언)

  • Roh, Eunhwan;Jeong, Sangtae
    • Education of Primary School Mathematics
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    • v.19 no.4
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    • pp.291-311
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    • 2016
  • Researcher was interested in circumference of plane figure problem. Meanwhile, researcher found some difficulty in solving circumference problem with stair like plane figure. In this phenomenon, researcher felt to find the teaching method to help students with circumference of plane figure. For this, researcher analyzed many students' recording paper and had interview with few students. As a result researcher found that students had some difficulty in recognizing essential information and prior knowledge base was not made up. From these responses, this paper proposed teaching method for helping students about circumference related problems.

A Study on Ranking Retrieved Documents Utilizing Term Relationship (용어간 관계를 이용한 검색문헌의 순위부여에 관한 연구)

  • Gang, Il-Jung;Jeong, Yeong-Mi
    • Journal of the Korean Society for information Management
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    • v.8 no.1
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    • pp.100-116
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    • 1991
  • In this study, a retrieval system taking advantage of term relationship in a specific domain and also of evidential reasoning as tools for measuring relevance is implemented. For this experiment, techincal memoranda documented in Electronics and Telecommunications Research Institute (ETRI) served as a sample document file. Sample knowledge base was prepared by extracting terms and term relations pertaining to telecommunications from INSPEC thesaurus. Relations between terms were represented by numerical values according to types of term relations. Relationship between a query and a document was measured according to Dempster-Shafer theory of evidence. As a result of this experiment, a more comprehensive search was made by expanding search terms utilizing term relations. Measure of relevance represented by reflecting term relations, and search results were listed in a descending order of relevance.

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A Review of Dynamic Capabilities, Innovation Capabilities, Entrepreneurial Capabilities and Their Consequences

  • VU, Hieu Minh
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.8
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    • pp.485-494
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    • 2020
  • The paper proposes a conceptual model which provides direction for researchers to empirically establish the connections between dynamic capabilities, innovation capabilities, entrepreneurial capabilities and financial and strategic performance. The author uses systematic literature review process to select the articles used in this study. First, the present paper review and discuss some major contributions to the theories of dynamic capabilities, innovation capabilities, entrepreneurial capabilities and their consequences. The author seeks to highlight different understandings of the concepts to clarify the distinctions between them. Second, the conceptual model and propositions for future studies were developed. The proposed model highlights the different measures of dynamic capabilities, innovation capabilities, entrepreneurial capabilities and their consequences. The model with its associated propositions was developed base on limitations and gaps observed from past studies. It is focused on empirically testing the direct impact of dynamic capabilities, innovation capabilities, and entrepreneurial capabilities on the performance of SMEs in Vietnam. Nevertheless, the proposed model can be applied to similar situations in different contexts and countries. Further empirical testing of proposed model would contribute to enriching existing knowledge of dynamic capabilities, innovation capabilities and entrepreneurial capabilities within SMEs and how these capabilities foster superior performance.

An Analysis of Unit Evaluation Items in Middle School Science Textbooks (중학교 과학 교과서의 단원평가문항 분석)

  • Jo, Changhyun;choi, Wonho
    • Korean Educational Research Journal
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    • v.38 no.1
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    • pp.29-39
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    • 2017
  • This study analyzes the items of acid base and redox unit in the middle school science textbook based on the 2009 revised science curriculum using Bloom's taxonomy of educational objectives. As a result of the analysis, the elements of knowledge area appeared the most in textbook items of all publishing companies, and those elements were less in order of understanding, application, analysis, synthesis and evaluation. And the sub-domain of cognitive domains were not evenly distributed by the publisher. Therefore, schools need to refer to the evaluation items of the textbooks of various publishing companies and use them in class.

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Identification and Control of Command Panoramic Sight System (조준경안정화시스템의 인식과 제어)

  • Kim, Dae-Woon;Cheon, Soon-Yong
    • Journal of the Institute of Electronics Engineers of Korea SC
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    • v.44 no.3
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    • pp.14-21
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    • 2007
  • Sight Stabilization system is the control system to preserve Line of Sight for the targets though many nonlinear disturbances and vibrations are generated. In this paper, we identified Stabilization system using RLS algorithm, one of the system identification algorithm and found out the modeling of system. Considering nonlinear operational condition this paper proposes two Knowledge-base controllers - Fuzzy controller, Fuzzy PI Gain Scheduling controller, and simulates the performances of proposed controllers compare with Lead PI controller being used in Sight system of NFIV.

Application of the fashion therapy to reduce negative emotions of female patients (여성 환자의 부정적 정서 감소를 위한 패션테라피 적용)

  • Yoh, Eunah
    • The Research Journal of the Costume Culture
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    • v.23 no.1
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    • pp.85-101
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    • 2015
  • In this study, it is explored the effect of fashion therapy on depression, positive emotion, negative emotion, appearance interest, body satisfaction, self-esteem, and self-efficacy of female patients. Eight cancer patients and 12 general patients participated in the 4-week fashion therapy program. When comparing results before and after the fashion therapy, depression and negative emotions were significantly decreased while positive emotions and self-efficacy were significantly increased. There was no significant influence on appearance interest, body satisfaction, self-esteem, and self-efficacy. In group comparison, significant changes were observed in depression, positive emotion and negative emotion regardless of groups. However, cancer patients indicated a significant improvement in self-efficacy compared to general patients who did not whereas patients with a high level of depression showed a significant enhancement on body satisfaction compared to patients with a low level of depression. Also, patients with a low level of pain indicated a significant improvement on self-esteem and self-efficacy compared to patients with a high level of pain. Perceived effect and satisfaction of the fashion therapy were relatively high. Study results may positively contribute to building a knowledge and experimental base of fashion therapy that is widely applicable to diverse parties for the future.

Fuzzy Inference-based Quantitative Estimation of Environmental Affecting Factor For Performance-based Durability Design of RC Structure Exposed to Salt Attack Environment (염해 환경에 노출된 RC 구조물의 내구성능설계를 위한 퍼지 추론 기반 환경영향지수의 산정)

  • Do Jeong Yun;Song Hun;Soh Seung Young;Soh Yang Seob
    • Proceedings of the Korea Concrete Institute Conference
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    • 2005.05b
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    • pp.237-240
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    • 2005
  • As a part of the effort for improving the durability design based on a set of the deem-to-satisfy specifications, it is important and primary to quantitatively identify the environmental impact to a target reinforced concrete structure. In this work, an effort is made to quantitatively calculate the environmental affecting factor with using a fuzzy inference that it indicates the severity of environmental impact to the exposed reinforced concrete structure or member. This system is composed of input region, output region and rule base. For developing the fuzzy inference system surface chloride concentration{chloride), cyclic degree of wet and dry(CWD), relative humidity(RH) and temperature (TEMP) were selected as the input parameter to environmental affecting factor(EAF) of output parameter. The Rules in inference engine are generated from the engineering knowledge and intuition based on some international code of practises as well as various researcher's experimental data. The devised fuzzy inference system was verified comparing the inferred value with the investigation data, and proved to be validated. Thus it is anticipated that this system for quantifying EAF is certain to be considered into the starting point to develop the performance-based durability design considering the service life of structure.

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Influence of Adjacent Structures on Surface-Wave Dispersion Characteristics and 2-D Resistivity Structure (표면파 분산특성과 전기비저항 분포특성에 대한 인접구조물의 영향)

  • Joh, Sung-Ho;Kim, Bong-Chan;Cho, Mi-Ra;Kim, Suhk-Chol;Youn, Dae-Hee;Hong, Jae-Ho
    • Proceedings of the Korean Geotechical Society Conference
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    • 2008.10a
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    • pp.1318-1327
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    • 2008
  • Geotechnical sites in urban areas may have embedded structures such as utility lines and underground concrete structures, which cause difficulties in site investigation. This study is a preliminary research to establish knowledge base for developing an optimal technique for site investigation in urban areas. Surface-wave method and resistivity survey, which are frequently adopted for non-destructive site-investigation for geotechnical sites, were investigated to characterize effects of adjacent structures. In case of surface wave method, patterns of wave propagation were investigated for typical sets of multi-layered geotechnical profiles by numerical simulation based on forward modeling theory and field experiments for small-size model tests and real-scale tests in the field. In case of resistivity survey, 3-D finite element analyses and field tests were performed to investigate effects of adjacent concrete structures. These theoretical and experimental researches for surface-wave method and resistivity survey resulted in establishing physical criteria to cause interference of adjacent structures in site investigation at urban areas.

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A study on the Monitoring System for Apartment Power Apparatus (공동주택에서 전력설비 감시에 관한 연구)

  • 김정태;이기홍;홍규장;유건수
    • The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.9 no.2
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    • pp.68-78
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    • 1995
  • Until now, the electrical monitoring system had been used of the Graphic-Mosaic panel, which is located to the cellar at the apartment complex. it was inappropriated to man-power and system-organization at apartment complex. for that reason, in this paper IMS is presented. An Intelligent Monitoring System can provide and explanation of real-time opera- state of an electric power apparatus to its operators in apartment complex. IMS is proposed as a model for integration supervisory system whose primary tasks are to communicate line data with host-computer and slave-controller it is based on a generalized version of use-career and a trouble shoot knowledge base for diagnostic problem solving. to operate it, both of controller and its operator-view is deigned by the real-tune O.S TREND 940.

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Development of an Associative Value Knowledge Base based on UMLS & LOINC Database for Semantic Medical Information Integration. (의미적 의료정보 통합을 위한 UMLS와 LOINC DB 기반의 연관 값 지식베이스 개발)

  • Kim, Tae-Woo;Hong, Dong-Wan;Yoon, Jee-Hee
    • Proceedings of the Korea Information Processing Society Conference
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    • 2003.05c
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    • pp.1551-1554
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    • 2003
  • 최근 다양한 의료정보 시스템이 개발되어, 그 사용이 급증하고 있다. 이 들 각각의 의료정보 시스템에서 발생, 축적된 의료정보는 분산 이질의 형태를 가지며, 또한 같은 의미를 갖는 의료정보가 각기 다른 구조와 용어로 기술되어 축적되는 것이 일반적이다. 이와 같이 개별적으로 개발, 활용되어 온 의료정보를 웹 상에서 통합하여, 단일화 된 의료정보 검색 기능을 제공하기 위해서는 이들 의료정보의 의미적 연관성을 고려한 정보의 통합, 검색 기술의 개발이 필수적이다. 본 논문에서는 의미적 의료정보의 통합을 위한 UMLS와 LOINC 데이터베이스 기반의 연관 값 지식베이스의 설계 및 개발 방식을 제안한다. 웹 상에 존재하는 각종 분산 이질 형태의 의료정보는 XML을 공통 데이터 구조로 하여 통합되며, 정보 통합의 과정에서 연관 값 지식베이스를 참조하여 의미적 관련도가 높은 의료정보(구조 정보와 내용 정보)는 상호 연결되어, 진정한 의미의 정보 통합을 구현하게 된다. 지식베이스는 용어별로 식별자, 요소명, 연관값, 복수형, 동의어, 한글 이름 등의 필드틀 가지며, 현재 상담, 처방, 보험, 의료용어, 증상, 임상결과 등 적용분야 별로 작성된 연관 값 지식베이스가 구현되어 있다.

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