• 제목/요약/키워드: theoretical aspects

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융합 비즈니스 모델링 프레임워크에 관한 연구 (A Study on Modeling Framework of Convergence Business)

  • 김덕현
    • 한국전자거래학회지
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    • 제17권4호
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    • pp.175-196
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    • 2012
  • 정부와 산업에서 융합 내지 융합 비즈니스에 대한 정책과 전략이 광범위하게 확산되고 있음에 반해 이를 성공적으로 구현하는데 필요한 이론적 기반과 효과적 방법론은 매우 부족한 상태이다. 특히, 융합 비즈니스 모델(BM)의 '이상적(ideal)유형' 즉, 이론적 유형에 대한 연구는 국내/외를 막론하고 아직까지 주목할 만한 결과가 없는 것으로 파악된다. 본 논문은 BM의 개념적 프레임워크로 '4W1H 모형'을 제안하고 이를 통해 융합 BM의 이론적 유형, BM 유형별 전략과 설계 수순 등을 정의할 수 있음을 보이기 위한 것이다. 4W1H 모형은 BM의 구성요소를 고객가치(why), 가치제안(what), 운영방식(how), 목표시장(whom), 공급역량(who) 등 5개로 정의한 것으로서 이를 통해 가치혁신형, 상품혁신형, 운영혁신형, 시장혁신형, 역량혁신형 등의 융합 BM 유형을 도출하였다. BM 구성요소와 유형(즉, 구조적 특성) 정의에 이어 BM 구성 요소간 상호작용(즉, 행위적 특성)에 대한 정의를 통해 BM이 기업전략과도 연계될 수 있음을 보였다.

Ultimate bearing capacity of conical shell foundations

  • Colmenares, J.E.;Kang, So-Ra;Shin, Young-Jin;Shin, Jong-Ho
    • Structural Engineering and Mechanics
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    • 제52권3호
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    • pp.507-523
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    • 2014
  • Shell foundations have been employed as an alternative for the conventional flat shallow foundations and have proven to provide economical advantage. They have shown considerably improved performance in terms of ultimate capacity and settlement characteristics. However, despite conical shell foundations are frequently used in industry, the theoretical solutions for bearing capacity of these footings are available for only triangular shell strip foundations. The benefits in design aspects can be achieved through theoretical solutions considering shell geometry. The engineering behavior of a conical shell foundation on mixed soils was investigated experimentally and theoretically in this study. The failure mechanism was obtained by conducting laboratory model tests. Based on that, the theoretical solution of bearing capacity was developed and validated with experimental results, in terms of the internal angle of the cone. In comparison to the circular flat foundation, the results show 15% increase of ultimate load and 51% decrease of settlement at an angle of intersection of $120^{\circ}$. Based on the results, the design chart of modified bearing capacity coefficients for conical shell foundation is proposed.

3차원 물체에 작용하는 유체동력학적 충격하중추정 (Prediction of Hydodynamic Impact Loads on Three-Dimensional Bodies)

  • ;강창구
    • 대한조선학회지
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    • 제27권3호
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    • pp.73-88
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    • 1990
  • 본 논문에서는 이론적인 방법과 실험적인 방법에 의해서 구와 플레어 형상을 갖는 축대칭 물체와 같이 3차원 물체에 대한 충격력을 검토하였다. 플레어 형상을 갖는 축대칭물체는 선수와 유사한 형상을 갖고 있다. 플레어 형상물체는 연직운동에 대한 것만을 검토한 반면 구에 대해서는 연직운동만이 아니라 사각 충격에 대해서도 검토하였다. 다이폴분포와 등포텐시얼 자유표면문제를 푼 계산결과와 실험결과를 비교하였다. 경계치문제는 알려진 내부유동을 사용함으로써 계산시간을 단축하였다. 이론과 실험의 비교로부터 물체형상에 따라 최대 충격력의 이론추정치는 실험치보다 더 크거나 작을 수 있다는 것을 보여주고 있다. 그러나, 이론치가 실용적으로 사용될 수 있음을 보여주고 있다.

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정규 분포 모델을 이용한 화물 적재 문제의 이론적 해법 도출 및 활용 (On the Theoretical Solution and Application to Container Loading Problem using Normal Distribution Based Model)

  • 정승환
    • 산업경영시스템학회지
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    • 제45권4호
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    • pp.240-246
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    • 2022
  • This paper introduces a container loading problem and proposes a theoretical approach that efficiently solves it. The problem is to determine a proper weight of products loaded on a container that is delivered by third party logistics (3PL) providers. When the company pre-loads products into a container, typically one or two days in advance of its delivery date, various truck weights of 3PL providers and unpredictability of the randomness make it difficult for the company to meet the total weight regulation. Such a randomness is mainly due to physical difference of trucks, fuel level, and personalized equipment/belongings, etc. This paper provides a theoretical methodology that uses historical shipping data to deal with the randomness. The problem is formulated as a stochastic optimization where the truck randomness is reflected by a theoretical distribution. The data analytics solution of the problem is derived, which can be easily applied in practice. Experiments using practical data reveal that the suggested approach results in a significant cost reduction, compared to a simple average heuristic method. This study provides new aspects of the container loading problem and the efficient solving approach, which can be widely applied in diverse industries using 3PL providers.

과학수업모형들의 특성에 관한 이론적 분석 (Theoretical Analyses of Science Teaching Models)

  • 김한호
    • 한국과학교육학회지
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    • 제15권2호
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    • pp.201-212
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    • 1995
  • The purpose of this study was to analyze science teaching models: Cognitive Conflict Teaching Model(CCTM), Generative Learning Model(GLM), Learning Cycle Model(LCM), Hypothesis-Testing Model(HTM), and Discovery Teaching Model(DTM). Using literature review, the models were analyzed and compared in several aspects; philosophical and psychological bases, primary goals and assumptions, syntax, implementation environments, and probable effects. The major finding were as follows; 1. Science teaching models had been diverse features. In the comparisons of science teaching models, some differences and similarities were founded. These were different in the degree of similarity and emphasis. 2. CCTM and GLM resemble each other in philosophical and psychological bases, primary goals and main assumptions, implementation environments, and probable effects. 3. LCM and HTM showed similarities in philosophical bases, syntax, and implementation environments. But differences were founded in other aspects These results showed that the diverse features of science teaching models should be considered in choosing a model for science teaching.

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시대정신과 복식조형성과의 상관성(제1보) -르네상스와 포스틈던시대의 유사성을 중심으로- (Correlation between the Spirit of Times and Characteristics of Clothing -Similarity between Renaissance and Post-modern Period-)

  • 박숙현
    • 한국의류학회지
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    • 제25권4호
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    • pp.673-684
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    • 2001
  • The purpose of this study was to find out the correlation between the \"spirit of the times\" and the characteristics of each eras clothing in Renaissance and Post-modern Period. Theoretical studies about the \"spirit of times\" and the characteristics of clothing about each time were preceded. The results were as follows: Similarities of \"Spirit of times\" were 1) emphasis on humanity 2) anti-centralization 3) destruction of social status 4) deconstruction of christianity in Renaissance and modernism in Post-modern Period. Similarities of \"characteristics of clothing\" were 1) emphasis on erotic aspects of female body 2) emphasis of erotic aspects on clothing 3) tendency to revert to the old fashion 4) popularization of certain social groups fashion 5) tendency of deconstructionism in fashion 6) tendency of \"No match mix\" 7) androgynous style.f \"No match mix\" 7) androgynous style.ous style.

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An Exploratory Content Analysis of a Saudi Women's Beauty Products' Discussion Forum

  • Al-Haidari, Nahed;Coughlan, Jane
    • Asia pacific journal of information systems
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    • 제25권4호
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    • pp.805-822
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    • 2015
  • Online communities are an important source of electronic word-of-mouth (e-WOM). However, few studies have examined the use of such messages within the Middle Eastern context. This study focuses on Saudi women as members of an online beauty forum. Previous work suggested a mediating effect of gender, with women being more likely to trust word-of-mouth and follow it up with a purchase. A conceptual model with a theoretical underpinning from existing contributions in literature provides the basis of a coding framework for the message characteristics that influence members' e-WOM adoption. A total of 310 threads and 2200 messages coded into 5725 units were content analyzed to demonstrate cases where e-WOM was adopted and indicate further continuance intention with members returning to the forum. A new category of 'community bonding' was created from the content analysis given the prevalence of emotional aspects in messages. Emotion expressed in messages, often expressed in religious terms, is as influential and important as the cognitive aspects of community bonding.

수학과 학문융합 (Mathematics and Disciplinary Convergence)

  • 박창균
    • 한국수학사학회지
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    • 제23권1호
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    • pp.67-78
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    • 2010
  • 이 글의 목적은 학문융합의 시대에 수학의 역할이 무엇인지를 밝히는 것이다. 수학은 학문융합에 있어서 세 가지 측면-이론적, 언어적, 정신적-에서 기여할 수 있다고 본다. 이를 위해 먼저 수학화의 과정을 살핀 후, 학문융합의 정도를 복합학문, 간학문, 초학문 등 세 단계로 구분한다. 그리고 학문융합에 기여하는 수학의 세 측면과 학문융합의 세 단계가 서로 대응관계에 있음을 주장한다.

Estimating free-living human energy expenditure: Practical aspects of the doubly labeled water method and its applications

  • Park, Jonghoon;Kazuko, Ishikawa-Takata;Kim, Eunkyung;Kim, Jeonghyun;Yoon, Jinsook
    • Nutrition Research and Practice
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    • 제8권3호
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    • pp.241-248
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    • 2014
  • The accuracy and noninvasive nature of the doubly labeled water (DLW) method makes it ideal for the study of human energy metabolism in free-living conditions. However, the DLW method is not always practical in many developing and Asian countries because of the high costs of isotopes and equipment for isotope analysis as well as the expertise required for analysis. This review provides information about the theoretical background and practical aspects of the DLW method, including optimal dose, basic protocols of two-and multiple-point approaches, experimental procedures, and isotopic analysis. We also introduce applications of DLW data, such as determining the equations of estimated energy requirement and validation studies of energy intake.

음양균형의학으로서의 응용근신경학(AK) 개요 (Introduction to the Applied Kinesiology, as a Yin-Yang Balance Based Approach)

  • 인창식
    • 턱관절균형의학회지
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    • 제7권1호
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    • pp.24-31
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    • 2017
  • Applied Kinesiology (AK) is an evaluation system on the functional balance and integration of the body. Functional aspects of the triad of health are evaluated through muscle testing to see if the balance and integration is in an optimal status or is influenced by a given environmental stimulation. Triad of health refers to the structural, chemical, and psychological aspects of the body. Muscle testing in AK is a functional neurological assessment of muscular response to a given environmental stimulation in a given individual. Meridian system and stomatognathic system as in TMJ balancing medicine serve as one of the theoretical basis of AK. This article reviews core concepts of AK, discusses yin-yang balance medicine perspectives and clinical applications of it.

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