• Title/Summary/Keyword: a case study on scientific concept

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Analysis of Content Validity and Case Studies of Responses to Scientific Questions on Qualification Examination for High School Graduation (고졸검정고시 과학 문항 타당도와 문항 반응 사례 분석)

  • MOON, Sungchae
    • Journal of Fisheries and Marine Sciences Education
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    • v.29 no.1
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    • pp.64-79
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    • 2017
  • This study was to evaluate the suitability of scientific questions as qualification examination for high school graduation by content validity and item response with three examinees and two preliminary examinees. As a result, scientific questions were concentrated on two units of six units of total, and application appeared to be lacking problem area by 8% compared to understanding and application. Examinees and preliminary examinees chose correct answers most by hap or guess, sometimes by experience or common sense, and the least by scientific concept. In addition, they could chose correct answers by hap or guess because there were words that implied the correct answer in questions and answers, or because they could compared and/or analyzed questions and answers. With these results, two proposals were suggested as follows; (1) scientific questions of qualification examination for high school graduation should measure basic scientific literacy. (2) specific criteria for science literacy in qualification examination for high school graduation should be set.

Elementary School Teachers' Concept of Combustion - Focus on Change of Gases - (연소에 대한 초등교사의 개념 - 기체변화를 중심으로 -)

  • Shin, Ae-Kyung;Moon, Hyun-Sook;Kang, Min-Seog
    • Journal of The Korean Association For Science Education
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    • v.31 no.6
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    • pp.942-957
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    • 2011
  • The purpose of this research was to examine the concept of elementary school teachers of combustion. The participants were selected from the elementary school teachers who had various career experiences, 6th grade science teaching experiences, and academic backgrounds on science. For the purpose of this study, 12 elementary school teachers took the concept-test formed five questions on combustion and were interviewed. The concept-test was composed with 'The definition of combustion', 'The reason that the candle was blown out when glass was closed.', 'The existence of oxygen and carbon dioxide of before and after combustion in glass', 'Combustion of iron', 'Combustion products'. And the collected data by semi-structured interviews based on responses to the concept-test. During the analysis of the data, additional interviews by phone, e-mail and Internet messenger were conducted if necessary. The answers to each question were classified into three levels: (Scientific-concept(S), Partial-concept(P), Misconcept(M)). The research results showed that all teachers had misconceptions or partial-concept of more than 50 percent of each question. Teachers who had the 6th grade science teaching experience acquired scientific concepts of the combustion more than teachers who did not have the 6th grade science teaching experience. We should develop visualization materials about the change of gases during combustion and use these materials for implementation of the scientific concept.

Analysis of the Relationship between Familiarity, Feeling of Knowing, State Curiosity, and State Anxiety of Elementary School Students in the Thermal Task Contexts (열과 관련된 문제 상황에서 초등학생들이 느끼는 친숙도, 인지에 대한 지각, 상태호기심, 상태불안의 관계 분석)

  • Kang, Jihoon;Kim, Jina
    • Journal of Korean Elementary Science Education
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    • v.39 no.3
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    • pp.433-448
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    • 2020
  • In this study, the tasks of thermal equilibrium and heat insulation concept were divided into scientific and everyday contexts to analyzed the level of familiarity, feeling of knowing, state curiosity, and state anxiety that students feel in task contexts and their relationship. The subjects of this study were One hundred nine students in sixth grade of elementary schools located in metropolitan cities. The results of this study were as follows. First, there was no difference in the level of feeling of knowing, state curiosity, and state anxiety in the task of scientific and everyday contexts. In the case of familiarity, there was no consistent tendency in the concept of thermal equilibrium and heat insulation. And the group who recognized the task context familiarly had higher feeling of knowing and lower state anxiety than the group who recognized the task context unfamiliarly. Second, familiarity and feeling of knowing showed high positive correlation, state anxiety and familiarity showed negative correlation, and state anxiety and feeling of knowing had also negative correlation. In addition, familiarity had a negative effect on state anxiety, and FOK had a positive effect on state curiosity and a negative effect on state anxiety. There was no significant moderating effect of the task context. Third, in case of state curiosity, the group perceived the knowledge gap was very small had the highest state curiosity, and the group perceived the knowledge gap was very large had the lowest state curiosity. In case of state anxiety, the less the knowledge gap was perceived, the lower the anxiety was triggered. This study broadens our understanding of the learning process and provides implications for effective instruction strategies for students' cognitive and emotional states.

A Case Study of SE and EVMS Techniques Application on Surion Helicopter R&D Program (수리온헬기 개발사업에서 시스템 엔지니어링 및 사업성과관리 기법 적용 사례연구)

  • Byun, Hyung Kyun;Lee, Sang Woo
    • Journal of the Korean Society of Systems Engineering
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    • v.8 no.1
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    • pp.51-62
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    • 2012
  • The System Engineering(SE) and the Earned Value Management System(EVMS), as parts of the scientific project management methodology, have been applied to Surion Helicopter R&D Program. The concept and application process of SE methodology, requirements management and applications output by DOORS program are described in this study. The concept and application process of EVMS, analysis results of schedule/cost variance for Surion RF equipment are also discussed in this study. Though the Surion R&D program is still on-going, it is found that the measures of effectiveness of SE and EVMS applications are verified.

Bonding Mechine for Axiomatic Design (공리적 설계 방법에 의한 Bonding Mechine의 개념 설계)

  • Kim, Won-Jong;Hwang, Eun-Ha
    • Journal of the Korean Society of Industry Convergence
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    • v.17 no.4
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    • pp.194-202
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    • 2014
  • Bonding Machine is new concept of semi industry. In this study, bonding machine is designed with aximatic design, then manufactured based on it. Axiomatic design offers a scientific base for design in an efficient way. Many application of the independence axiom have been pulished, however, the information axiom has been mainly applied to FR - DP problems except for few case studies.

Landscape Ecology Concept, Principles and Its Rlation to Monothematic (e.g. Vegetation) Survey (경관생태학의 개념, 원리 및 식생조사와의 관계)

  • Isaak, S. Zonneveld
    • The Korean Journal of Ecology
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    • v.21 no.4
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    • pp.357-372
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    • 1998
  • Land (scape) ecology is a trans-disciplinary science studying the related systems at the earth surface, in their visual, structural and functional aspects. it serves as an umbrella under which abiotic and biotic sciences, in an integrated way, study the for each relevant land attributes and their interrelations. The spatial aspects of these relations have a special interest. Landscape ecology my have a pure scientific purpose, but usually is executed in an applied context, related to land evaluation for land use and conservation. Depending on the aim and application of the study, one of the land attributes may get special attention. Vegetation mapping may contribute to landscape ecological study but also benefit from it especially in case of reconnaissance surveys. This is because in less detailed surveys of any land attribute, like land form, soil, vegetation, one must necessarily apply landscape ecological principles in the survey methodology, including remote sensing.

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Analysis of OLAP-based CRM Development Strategies and Effects (OLAP 기반의 CRM 개발전략 및 효과에 관한 연구 유통산업의 사례를 중심으로)

  • 조남재;이용범;정창미
    • Proceedings of the Korea Database Society Conference
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    • 2001.06a
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    • pp.251-260
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    • 2001
  • For a continuous revenue increase, a new scheme to increase sale volume is a necessity. This new scheme is based on a revaluation of the customer value for the sake of the future of a company. The concept and use of CRM and OLAP(On-Line Analytical Processing) are introduced in this report. The effectiveness of OLAP-based CRM is demonstrated through a case study of a typical retail company. The research suggests the need for the establishment of a marketing strategy to build a long-term relationship with individual customers. The needs for a scientific and systematic analysis of the industry, competitors and customers are elaborated.

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A Study on the Digital Space Color by Application Color System in New Media Environment (뉴미디어 환경의 색채시스템을 적용한 디지털 공간색채 연구)

  • Kim, Sun-Young
    • Korean Institute of Interior Design Journal
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    • v.20 no.6
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    • pp.236-243
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    • 2011
  • The digital space color of new media environment denied not only the deterministic relationship of designed color and circumjacent color but also the deduced an special elements of digital space color. Such phenomena historical perspective of Gernot Wersig, new media principle of Lev Manovich and remediation of Bolter, J.K & Grusin, R. are expressed in various new media environment across. In particular, development of digital technology is moving away from its previous space color based on scientific, statistical and quantitative perspective by using diverse variables. The following research focuses on the fundamental concept of space color by type, composition of digital space color. The paper reflects on the meaning and concept of contemporary which enables the application of digital space color system on space through advanced technology. The principle of digital space color such as multidimensional malerisch, discontinuous video, vague original and copy, irregular repetitiveness of 'copy of copy', selective color of observer, experiential color of observer, and etc. makes it possible to extract the expressed element and method of digital space color. Meanwhile, the features of digital space color such as divided field of form, non-systematized of process and collage of communication can be inferred from case analysis.

Research on Standardization of Sasang Typology Formulae English Translation (사상(四象) 방제명(方劑名)의 영역(英譯) 표준화(標準化)에 대한 연구(硏究))

  • Kim, Hyun-Koo;Ahn, Sang-Young;Kwon, Oh-Min;Ahn, Sang-Woo
    • The Journal of Korean Medicine
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    • v.34 no.1
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    • pp.103-115
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    • 2013
  • Objectives: This study proposes a new form of English translation in comparison with that shown in English books related to Sasang Constitutional medicine formulae which have been published up to now. Methods: This study formulated a new form of English translation guidelines by making a comparative analysis of the English translation cases listed in "Korean-English Dictionary of Oriental Medicine", "Longevity and Life Preservation in Eastern Medicine", and "Introduction to Sasang Constitutional Medicine". Results: This study as a common rules suggested that names of preparation form should be placed at the very end of the formula name and the first letters of the major words of the formula name should be capitalized. In addition, for the sake of accuracy in English translation of the formula name, this study divided the formula names into 8 types. The 8 sorts of types include: (a) Materia Medica + Preparation Form, (b) Materia Medica + Indication + Preparation Form, (c) Materia Medica Numbers + Preparation Form, (d) Indication + Preparation Form, (e) Concept + Preparation Form, (f) Concept + Materia Medica + Preparation Form, (g) Concept + Indication + Preparation Form, (h) Etcetera. In these types, medicinal herbs should be written in scientific name, and translation of indication can follow Noun+~ing participle form. In case of the terms having a Korean-medicine-based meaning, this study aimed for source-oriented translation. Conclusions: This study provides a general English translation method and examples of the formula names for Sasang constitutional medicine.

Convergence in Fashion Design (컨버전스 트렌드에 의한 패션 디자인)

  • Ko Hyun-Zin
    • Journal of the Korean Society of Costume
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    • v.56 no.7 s.106
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    • pp.148-162
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    • 2006
  • The purpose of this study is to examine the concept of convergence which is one of the trendy issues as a new digital paradigm of Integrative thinking in 21st century, to analyze the plastic feature and internal meaning of convergence expressed in fashion design, and to grasp the cultural symbolism through this aesthetic analysis. Because there have been considerable discussions on convergence, centering on industrial product area associated with media, I will proceed my study on the basis of them. For this, the documentary study and practical case study have been executed. This study will be helpful to find a direction of future fashion design trend. Convergence in digital stage can be defined as a phenomenon which different functions of product move towards one direction for greater efficiency, and not only as a technical integration between functions of product, but also an extension of area. Convergence can be classified by their use as (1) convergence for convenient daily life (2) convergence with intelligent scientific technology (3) convergence for entertainment on the basis of sensual experience. The plasticity of convergence designs feature as a open dynamic structure which potentiate transformation and their internal meaning can be inquired such qualities as integrative multiplicity, efficiency, mobility, intelligence. Specially convergence fashion design has protection qualify resulting from wearability on body. Ultimately convergence fashion design as a future digital paradigm can be thought as both eco-friendly design and human-centered design from positive technology-based viewpoint, because it is easy to transform according to our environment, convenient to reserve, and efficient to enhance spatial usibility.