• Proceedings of the Korean Information Science Society Conference
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• 한국정보과학회 2003년도 가을 학술발표논문집 Vol.30 No.2 (2)
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• pp.787-789
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• 2003

본 논문에서는 생물체의 세포에 존재하는 방대한 단백질들 사이의 복잡한 상화작용 관계 네트워크를 개념화하기 위한 방법을 제안한다. 일반적으로 하나의 단백질은 세포의 특정한 구성요소로서 몇 개의 생물학적 작용에 참여하며 고유의 분자 기능을 수행하게 된다. 즉, 하나의 상호작용 관계 네트워크에 포함된 각각의 단백질들은 구성요소(Cellular Component), 생물학적 작용(Biological Process), 그리고 분자 기능(Molecular Function) 3가지 특징으로 개념화할 수 있다. 또한, 비슷한 특징으로 개념화되는 단백질들은 서로 클러스터링될 수 있기 때문에 단백질 상호작용 네트워크를 일반적인 의미의 개념 네트워크로 표현할 수 있다. 여기서, 단백질 특징을 개념화하기 위해 사용되는 표준개념과 이 개념들 사이의 관계를 정의하는 유전자 온톨로지(Gene Ontology)가 이용된다.

• Journal of Korean Association for Spatial Structures
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• 제5권4호
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• pp.79-90
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• 2005

The purpose of this study is development of a finite element algorithm to find out the stressed condition, slipped direction and slipped dimension when some elements of cable-membrane structures are slipped from it's initially designed coordinates by external loads as wind or non uniform load and so on. In order to search the slipped behaviors of cable-membrane structures, a Arbitrarily-Lagrangian-Eulerian(ALE) finite element formulation is introduced. In these procedures, a stiffness matrix related with ALE concept is formulated and a FE analysis program for cable-membrane structures with slipped elements is developed. Various examples for cable and membrane structures are presented to verify the program's validation. The results are shown good agreement with that of existed one.

• Journal of the Computational Structural Engineering Institute of Korea
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• 제13권3호
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• pp.373-384
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• 2000

To assess the safety of nonlinear steel frame structures subjected to short duration dynamic loadings, especially seismic loading, a nonlinear time domain reliability analysis procedure is proposed in the context of the stochastic finite element concept. In the proposed algorithm, the finite element formulation is combined with concepts of the response surface method, the first order reliability method, and the iterative linear interpolation scheme. This leads to the stochastic finite element concept. Actual earthquake loading time-histories are used to excite structures, enabling a realistic representation of the loading conditions. The assumed stress-based finite element formulation is used to increase its efficiency. The algorithm also has the potential to evaluate the risk associated with any linear or nonlinear structure that can be represented by a finite element algorithm subjected to seismic loading or any short duration dynamic loading. The algorithm is explained with help of an example and verified using the Monte Carlo simulation technique.

• The Journal of the Korea institute of electronic communication sciences
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• 제13권6호
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• pp.1317-1322
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• 2018

In order to complete the AR UI design simply and quickly, the usable factors were studied in this thesis. The primary aim of interface design is to increase the usability. The various factors should be considered together when we evaluate the usability. The idealized usable working model is based on user-centered with the aim of perceiving the interests of users, operating easily and completing targets. In order to ensure the types of usable factors, literature survey method had been used and a total of 85 usable factors had been collected by this survey. To make the usable factors can adapt the augmented reality, the concept of factors should be redefined. We extract the items which is adaptable and user-centered, combine or delete the items that have the same meanings and finally select 25 usable evaluative factors. Then we take HCI professional as the object and collect the data by Heuristic Evaluation. We systematize the usable factors by Principal Component Analysis, and observe the correlation between the usable factors and classify those which have high correlation.

• The Journal of Society for e-Business Studies
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• 제9권3호
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• pp.113-128
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• 2004

Up to the present, most of the previous works, related to the alignment of organizations, have been focused on the alignment between business and information technology. Also these works have been done with single element, e.g., view rather than with overall elements such as view, scope, and perspective for enterprise-wide integrated alignment. Meanwhile, an enterprise architecture is a blueprint that represents the structure of components of organizations and their interrelationships. Nowadays, many organizations attempt to make enterprise-wide alignment of business and information technology based on enterprise architecture. Unfortunately, the enterprise-wide alignment is still in a stage of not only conceptual level but also abstract level. Hence, this paper proposes a structured enterprise-wide alignment model to overcome the limitations of existing alignment models. We survey the existing works and propose the conceptual, the logical, and the physical models for enterprise-wide alignment which includes 3-dimensional elements such view, scope, and perspective based on enterprise architecture. Finally, we have shown that the proposed model is better than existing ones through comparing the characteristics of models.

• Journal of the Korean Society for information Management
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• 제29권4호
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• pp.229-249
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• 2012

The study aims to analyze the notion of web navigation in library and information science (LIS) by investigating the concepts and its consequences. The analysis is based on 32 articles published in international LIS journals between 1995 and 2012. The study noted the changing contexts of information retrieval in the Web environment, and discusses the changes over time in the way in which the notion of navigation have been regarded. Three main concepts are identified: navigation behavior, navigation strategies, and navigation designs.

• Journal of Korean Society of Industrial and Systems Engineering
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• 제33권2호
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• pp.112-126
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• 2010

시계열데이터는 ARMA 분석에 적합지 않은 요소를 내재하고 있는 경우가 있다. 특히 선형성과 주기성을 가진 요소가 확률적인 분포와 자주 혼재되어 있다. 이 논문에서는 이런 선형적 주기적 요소를 찾아내고 분석하는 방법을 제시한다. 특히 주기적 요소는 여러 주기가 층층이 겹쳐져서 나타난다. 주기 간에는 서로 일정 정수비율을 유지하며, 한 주거 안에 다른 주기가 내포되어 있는 경우(nested periods)가 많다. 시간규모(time-scale)개념을 도입하여 이러한 주기적 요소를 개념적으로 정립하고자 했다. 선형적 요소와 주기적 요소가 제거된 후 추출된 데이터는 MA-approximation이라는 방법을 사용하여 가장 데이터에 근접한 ARMA 모텔을 찾아낸다. 마지막으로 선형적 주기적 요소와 ARMA 추정결과를 종합하여 control boundary를 결정하는 방법을 제시한다.

• Archives of design research
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• 제19권5호
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• pp.75-84
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• 2006

The aims of this study are to examine the conceptual contents of space diagram, and to find its elements and practical applications by analyzing the UN Studio. The Findings of this study are as follows: firstly, the conceptual contents represented in space diagram are classified into four elements - motif, flow, relationship, and distribution. Secondly, space diagram is used in program development, schematic design, and preliminary design of design process phases. Thirdly, the elements based on the case diagrams include five elements: context analysis, object analysis, time-behavior analysis, modeling analysis, and space analysis. Fourthly, in practical use, diagrams with motif concept is usually used in modeling analysis, and diagram with flow concept is commonly used in the analysis of time-behavior and object. Diagrams with relationship concept is mostly used in space analysis, secondly in analysis of context and modeling. Further, diagrams with distribution concept is usually used in space analysis. If one uses these findings for design projects in practical business or education, it would be helpful in design conception and development as well as of design information structuralization.

• Journal of Korean Philosophical Society
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• 제148권
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• pp.157-181
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• 2018

The aim of this essay is to identify elements of methodologies to investigate the development of Newtonian dynamics. This methodology involves the transformation and synthesis of preceding theories. My essay attempts to confirm my assertion by analyzing historical case of Newton's discovery of his dynamics. While discovering his mechanistic theory, Newton reconstructed theoretical concepts and structures of intellectual predecessors, such as Aristotle, Descartes, Galileo, and Kepler. Newton's synthesis was possible only after carefully reconstructing the appropriate and useful ideas of previous natural philosophers' ideas. As a result, Newtonian dynamics are completed with these modified and integrated concepts incorporated into Newton's law of motion and space-time concepts. This study consists of two parts. First, Lakatos' research program has been applied in order to analyze the structure of Newtonian dynamics. Second, the aforementioned methodologies of discovery are distilled from the case study.

• Computational Structural Engineering
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• 제4권2호
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• pp.9-12
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• 1991

공학문제에 있어서, 해석적으로 접근할 수 없었던 많은 경우의 문제들이 유한요소법(Finite Element Methods)의 정형화된 모형화 및 해석과정을 통하여 쉽게 접근되어질 수 있었다. 최근 보다 효율적인 요소개발과 컴퓨터 기술의 발달로 유한요소법은 더욱 효과적인 해석 수단이 되어가고 있다. 그러나 지반공학 문제와 같은 무한영역 문제를 유한요소법으로 해석할 경우, 매우 큰 영역을 모형화하기 위하여 많은 수의 요소가 요구되며 이에 따른 자유도(Degree of Freedom) 수의 증가로 많은 계산시간을 요구하게 된다. 본 고는 무한영역 문제를 효과적으로 모형화하기 위하여 연구, 개발되어진 무한요소(Infinite Element)에 대하여 소개하려 한다. 무한요소의 기본개념과 강성행렬의 형성방법을 보인 후, 기초공학 문제를 예로 하여 이의 적용방법을 간략하게 설명하였다.