• 정보처리학회논문지D
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• 제9D권4호
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• pp.639-650
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• 2002

소프트웨어의 성공적인 개발을 위해서는 체계적이고 명확한 요구분석이 이루어져야 한다. UML에서는 유스케이스 모델링을 통해 사용자 또는 고객의 요구사항을 파악하고 업무 시스템의 범위를 결정하는 방법을 제공하고 있다. 본 논문에서는 효율적이며 정확한 유스케이스 모델링을 위한 연구의 일환으로, 요구사항 기술서로부터 정형화된 규칙을 적용해 가면서 단계적으로 유스케이스 다이어그램을 추출하는 기법을 제시하였다. 요구사항 기술서 관련규칙( $R_{A}$; Rules for Requirements Specification)을 적용하여 요구사항 기술서를 변경하고, 변경된 요구사항 기술서에 액터 추출 규칙( $R_{A}$ ; Rules for Actors), 유스케이스 추출 규칙( $R_{U}$ ; Rules for Use Cases), 관계 추출 규칙( $R_{R}$ ; Rules for Relationships)을 각각 적용하여 액터, 유스케이스, 관계를 추출하여 최종적으로 유스케이스 다이어그램(Use Case diagram)을 작성하게 된다. 본 논문에서 제시한 규칙을 인사관리 요구사항 기술서에 적용해 본 결과, 정형화된 규칙이 없이 서술적인 몇몇 조언을 바탕으로 유스케이스 다이어그램을 추출해야하는 기존의 어려움을 줄일 수 있는 효과를 확인하였다.확인하였다.

• Structural Engineering and Mechanics
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• 제46권5호
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• pp.629-644
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• 2013

This paper concerns about the raking damages on the ultimate residual hull girder strength of bulk carriers by applying the modified R-D diagram (advanced method). The limited raking damage scenarios, based on the IMO's probability density function of grounding accidents, were carried out by using sampling technique. Recently, innovative method for the evaluation of the structural condition assessment, which covers the residual strength and damage index diagram (R-D diagram), was proposed by Paik et al. (2012). This concept is applied in the present study and modified R-D diagram, which can be considered vessel size effect, is then proposed. Four different types of bulk carrier structures, i.e., Handysize (37K), Supramax (57K), Kamsarmax (82K) and Capesize (181K) by Common Structural Rule (CSR), were applied to draw the general tendency. The ALPS/HULL, intelligent supersize finite element method, was employed for the ultimate longitudinal strength analysis. The obtained empirical formulas will be useful for the condition assessment of bulk carrier structures. It can also cover different sizes of the bulk carriers in terms of ultimate longitudinal strength. Important insights and findings with useful guidelines developed in this study are summarized.

• 한국가스학회:학술대회논문집
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• 한국가스학회 2003년도 춘계학술발표회 논문집
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• pp.193-196
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• 2003

• 한국시스템다이내믹스연구
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• 제14권4호
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• pp.91-112
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• 2013

This article aims at revealing the dynamic relationships between the energy R&D investment and economic growth in Korea. To achieve this goal, we reviewed the effects of energy R&D investments and tried to make the holistic interconnections for describing the feedback loops between energy R&D and economic system. Energy R&D investments develop the renewable energy, energy efficiency and $CO_2$ emission reductions technologies for accomplishing the national strategic targets. The rapid obsolescence of technologies makes the inefficiency and negative effects in governmental energy R&D investments.

• 천문학회보
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• 제5권
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• pp.13.2-13.2
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• 1980

• 한국시스템다이내믹스연구
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• 제10권2호
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• pp.81-102
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• 2009

Based on various employment and technology data in the cultural sector from the mid-1990s to the mid-2000s in Seoul, Korea, this research examines whether technology- and human resource-oriented programs exert significant impact on creative manpower, R&D technology level and tolerance. After briefly introducing Seoul's trends in the culture industry, it tries to explain major reinforcing and balancing loops. The stock-flow diagram of the culture industry in Seoul is applied to estimate relative effectiveness of technology- and human resource-oriented cultural programs cultural programs. Judging from a series of simulated experiments, technology-oriented cultural programs are essential to increase creative manpower and R&D technology level in the short term. For the first half of research period, this research finds that human resource-oriented cultural programs put forth minimal impact, if they even exist at all. The trends, however, are reversed in the long term: Both size of creative manpower and R&D technology level absolutely depend on human resource-oriented cultural programs in the second half.

• 기술혁신학회지
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• 제2권3호
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• pp.118-128
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• 1999

This study attempts to provide an efficient method for managing the Nuclear R&D projects. It should be noted that the technology and experiences to develop a well-balanced plan and mon-itoring for the R&D project are not yet well established when compared with the commercial con-structionand engineering projects. This study recommends that the R&D project manager utilize the scheduling techniques to establish an integral management system taking in to account the un-certainties in the research environment. Based upon the results of a case study for the Liquid Metal Reactor Design Technology Development Project which is led by the KAERI this study also con-firms that it is possible to run the national nuclear R&D projects with the Scheduling & Planning.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2010년도 추계 학술발표회
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• pp.423-427
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• 2010

To develope SOC(social overhead capita) which constructs the railroad, highway etc., the geo-technical foundation have to be well understood for the safety works. In this paper, we selected Moonkyung area for the study area, which has various geological units and geological structure including the big thrust and fold. By this reason one of the geo-technical information is the engineering geology map. To make the map, lithology and soil distribution with drilling data are important elements. Three dimensional geo-infomation is established by fence diagram which is several geological cross sections and/or computer software 3D Geomodeller, EarthVision, GSI3D, Gocad.

• 대한화장품학회지
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• 제41권3호
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• pp.201-208
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• 2015

오가노겔은 반고형상이며 3차원의 네트워크 구조로 이루어진 친유성 용매로 이루어져 있다. 본 연구에서는 유상과 수상에서 모두 난용성 특징을 가진 제니스테인을 포함하는 레시틴 오가노겔을 개발하였다. 이 시스템은 안정할 뿐만 아니라 경피 흡수 실험에서도 높은 흡수율을 보였다. 본 오가노겔 제형에 적합한 원료들을 선별한 결과, 수화된 레시틴, 해바라기유, dipropylene glycol (DPG), polyethylene glycol (PEG)이 이 시스템에서 주로 사용되었다. 레시틴 오가노겔의 제조에 적합한 원료의 함량은 phase ternary diagram 작성을 통하여 결정하였다. 제조된 레시틴 오가노겔을 organoleptic characteristics, stability, pH, rheology, phase transition temperatures, microscopic analysis, skin penetration 실험을 통해 평가하였다. 본 연구 결과를 통해 본 논문에서 제시하는 레시틴 오가노겔 제형은 안정한 상태에서 난용성 물질을 높은 농도로 피부에 효과적으로 전달할 수 있는 제형으로 활용될 수 있을 것이라 생각된다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2003년도 하계학술대회 논문집 D
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• pp.2055-2057
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• 2003

This paper describes the results of RBD(Reliability Block Diagram) analysis of control rod control system, which is being developed as part of KNICS project. The results of RBD indicate unavailability of control cabinet for control rod control system. A purpose of RBB is to evaluate unavailability of control cabinet, identify the design drawbacks of control cabinet, and propose design improvement to a designer to help design the more reliable control rod control system. This RBD defines the logical interaction of failure within a system.