• Title/Summary/Keyword: 실질적인 접근법

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Component Grid: A Developer-centric Environment for Defense Software Reuse (컴포넌트 그리드: 개발자 친화적인 국방 소프트웨어 재사용 지원 환경)

  • Ko, In-Young;Koo, Hyung-Min
    • Journal of Software Engineering Society
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    • v.23 no.4
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    • pp.151-163
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    • 2010
  • In the defense software domain where large-scale software products in various application areas need to be built, reusing software is regarded as one of the important practices to build software products efficiently and economically. There have been many efforts to apply various methods to support software reuse in the defense software domain. However, developers in the defense software domain still experience many difficulties and face obstacles in reusing software assets. In this paper, we analyze practical problems of software reuse in the defense software domain, and define core requirements to solve those problems. To meet these requirements, we are currently developing the Component Grid system, a reuse-support system that provides a developer-centric software reuse environment. We have designed an architecture of Component Grid, and defined essential elements of the architecture. We have also developed the core approaches for developing the Component Grid system: a semantic-tagging-based requirement tracing method, a reuse-knowledge representation model, a social-network-based asset search method, a web-based asset management environment, and a wiki-based collaborative and participative knowledge construction and refinement method. We expect that the Component Grid system will contribute to increase the reusability of software assets in the defense software domain by providing the environment that supports transparent and efficient sharing and reuse of software assets.

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An Effect of Uplift Pressure Applied to Concrete Gravity Dam on the Stress Intensity Factor (중력식 콘크리트 댐에 작용하는 양압력이 응력확대계수에 미치는 영향)

  • Lee Young-Ho;Jang Hee-Suk;Kim Tae-Wan;Jin Chi-Sub
    • Journal of the Korea Concrete Institute
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    • v.16 no.6 s.84
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    • pp.841-850
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    • 2004
  • The modeling of uplift pressure within dam, on the foundation on which it was constructed, and on the interface between the dam and foundation is a critical aspect in the analysis of concrete gravity dams, i.e. crack stability in concrete dam can correctly be predicted when uplift pressures are accurately modelled. Current models consider a uniform uplift distribution, but recent experimental results show that it varies along the crack faces and the procedures for modeling uplift pressures are well established for the traditional hand-calculation methods, but this is not the case for finite element (FE) analysis. In large structures, such as dams, because of smaller size of the fracture process zone with respect to the structure size, limited errors should occur under the assumptions of linear elastic fracture mechanics (LEFM). In this paper, the fracture behaviour of concrete gravity dams mainly subjected to uplift Pressure at the crack face was studied. Triangular type, trapezoidal type and parabolic type distribution of the uplift pressure including uniform type were considered in case of evaluating stress intensity factor by surface integral method. The effects of body forces, overtopping pressures are also considered and a parametric study of gravity dams under the assumption of LEFM is performed.

The Analysis of Research Trends in Technology to the Fourth Industrial Revolution using SNA (소셜 네트워크 분석을 이용한 4차 산업혁명 기술 분야의 연구 동향 분석)

  • Kim, Hong-Gwang;Ahn, Jong-Wook
    • Journal of Cadastre & Land InformatiX
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    • v.49 no.1
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    • pp.113-121
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    • 2019
  • The fourth industrial revolution technology focused on the fusion of infrastructure and various advanced technologies related city. Therefore, technical cooperation in various fields of research is essential. In order to activating the fourth industrial revolution technologies, it is necessary to research the state of technology in various fields. Consequently, this paper aims to analysis of domestic and foreign research trends on technology to the fourth industrial revolution using SNA and text mining for web site. We collected text, date data of research paper and report in web site for five years, that is, from January 1st in 2014 to December 31st in 2018. Next, we have deduced the major keywords in public data through analyzing the morphemes. Then we have analyzed the core and related keyword lists through an SNA. In Korea, the focus is on R&D and legal/institutional solution in relation to the fourth industrial revolution technology. On the other hand, in the case of foreign, there was focus on practical technologies for urban services in detail aspects.

Deep Learning-based Pixel-level Concrete Wall Crack Detection Method (딥러닝 기반 픽셀 단위 콘크리트 벽체 균열 검출 방법)

  • Kang, Kyung-Su;Ryu, Han-Guk
    • Journal of the Korea Institute of Building Construction
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    • v.23 no.2
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    • pp.197-207
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    • 2023
  • Concrete is a widely used material due to its excellent compressive strength and durability. However, depending on the surrounding environment and the characteristics of the materials used in the construction, various defects may occur, such as cracks on the surface and subsidence of the structure. The detects on the surface of the concrete structure occur after completion or over time. Neglecting these cracks may lead to severe structural damage, necessitating regular safety inspections. Traditional visual inspections of concrete walls are labor-intensive and expensive. This research presents a deep learning-based semantic segmentation model designed to detect cracks in concrete walls. The model addresses surface defects that arise from aging, and an image augmentation technique is employed to enhance feature extraction and generalization performance. A dataset for semantic segmentation was created by combining publicly available and self-generated datasets, and notable semantic segmentation models were evaluated and tested. The model, specifically trained for concrete wall fracture detection, achieved an extraction performance of 81.4%. Moreover, a 3% performance improvement was observed when applying the developed augmentation technique.

The Analysis of Effects of a Music Teacher Training Program for Global Citizenship Education (세계시민교육 역량 제고를 위한 교육대학원 음악교육전공 교과 운영 효과 조사 연구: 예비음악교사의 다문화 교육태도 및 교수효능감을 중심으로)

  • Jung Joo Yeon;Shin Jihae
    • Journal of Music and Human Behavior
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    • v.20 no.1
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    • pp.47-74
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    • 2023
  • The purpose of this study was to develop a music teacher training program for global citizenship education and explore its effects on the participants' capacity for global citizenship. The program focused on multicultural education, including diversity and tolerance, among various topics in global citizenship education and consisted of practice to develop lesson plans for middle school music classes as well as theory about music in diverse sociocultural environments. The results showed that this program positively affected the participants' attitudes about a music teacher's role in the multicultural classroom. This program enabled participants to identify and reflect on any prejudice they may have against diversity and multiculturalism and to consider the role of music teachers in multicultural learning environments. The program also helped the participants develop greater self-efficacy as music teachers in multicultural environments and see music as a symbolic expression and a social and cultural product. Finally, the participants showed their positive attitude toward transformative pedagogy and considered various topics in global citizenship education beyond diversity and multiculturalism through multilateral understanding and exploration about music based on theory and practice in global citizenship education.

Postmodernism and Korean National Archives System since 1999 (기록의 역운 <포스트1999>를 전망하며)

  • Lee, Young-Nam
    • The Korean Journal of Archival Studies
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    • no.39
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    • pp.229-280
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    • 2014
  • This essay focused on the critical review of Korean National Archives System(KNAS) since 1999. We think that KNAS could establish the backbone with basic records law on 1999. It's right. But it is not enough for explaining the full historical growth. there are some factors below the growth. This essay tried to the basic three factors below. That means the the demonstration discourse, archival system practices, and archiving technologies in the contexts of the unique standard by the basic records law. These three factors have been the powerful engine for the take-off of KNAS since 1999. However, the powerful history has shadows of growth. This essay narrated the shadows by the frame of 'counter-destiny'. The most dangerous shadow is the loss of archival cultures because the KNAS has been composed of efficiency mentality. That means that KNAS has no unique archival culture for citizenship. So, this essay tried to talk about 'Post1999' to Archives Community.

Planting Design Strategy for a Large-Scale Park Based on the Regional Ecological Characteristics - A Case of the Central Park in Gwangju, Korea - (지역의 생태적 특성을 반영한 대형공원의 식재계획 전략 - 광주광역시 중앙근린공원을 사례로 -)

  • Kim, Miyeun
    • Journal of the Korean Institute of Landscape Architecture
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    • v.49 no.3
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    • pp.11-28
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    • 2021
  • Due to its size and complex characteristics, it is not often to newly create a large park within an existing urban area. Also, there has been a lack of research on the planting design methodologies for a large park. This study aims to elucidate how ecological ideas can be applied to planting practice from a designer's perspective, and eventually suggest a planting design framework in the actual case, the Central Park in the City of Gwangju. This framework consists of spatial structure of planting area in order to connect and unite the separated green patches, to adapt to the changes of existing vegetation patterns, to maintain the visual continuity of landscape, and to organize the whole open space system. The framework can be provided for the spatial planning and planting design phase in which the landscape designer flexibly uses it with the design intentions as well as with an understanding of the physical, social, and aesthetic characteristics of the site. The significance of this approach is, first that it can maintain ecological and visual consistency of the both existing and introduced landscapes as a whole in spite of its intrinsic complexity and largeness, and second that it can help efficiently respond to the unexpected changes in the landscape. In the case study, comprehensive site analysis is conducted before developing the framework. In particular, wetlands and grasslands have been identified as potential wildlife habitat which critically determines the vegetation patterns of the green area. Accordingly, the lists of plant communities are presented along with the planting scheme for their shape, layout, and relations. The model of the plant community is developed responding to the structure of surrounding natural landscape. However, it is not designed to evolve to a specific plant community, but is rather a conceptual model of ecological potentials. Therefore, the application of the model has great flexibility by using other plant communities as an alternative as long as the characteristics of the communities are appropriate to the physical conditions. Even though this research provides valuable implications for landscape planning and design in the similar circumstances, there are several limitations to be overcome in the further research. First, there needs to be more sufficient field surveys on the wildlife habitats, which would help generate a more concrete planting model. Second, a landscape management plan should be included considering the condition of existing forest, in particular the afforested landscapes. Last, there is a lack of quantitative data for the models of some plant communities.

Surrogate and Shared Medical Decision Making for Unrepresented Patients (의료행위에 대한 동의에서 환자 보호자의 법적 지위와 역할 - 대행결정권과 공동의사결정을 중심으로 -)

  • Kim, SooJeong
    • The Korean Society of Law and Medicine
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    • v.20 no.2
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    • pp.43-82
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    • 2019
  • In Korea surrogate medical decision makings happen without legal grounds. The purpose of this article is to research the issues in preparing policies for decision-making on behalf of unrepresented patients. As aspects of comparative law, there are two approaches. One of them is to regulate default surrogate list. If no agent or guardian has been appointed, some legislatures provide that members of patient's family who is reasonably available, in descending order of priority of not, may act as surrogate: (1) the spouse, unless legally separated; (2) an adult child; (3) a parent; or (4) an adult brother or sister. If none of them is eligible to act as surrogate, some legislatures allow close friends to make health-care decisions for adult individuals who lack capacity. On the other hand there are other legislatures which provide no surrogate decision maker list but oblige the responsible authority to determine with advice of family members or friends of the patient. In the end the first approach can not guarantee that the surrogate decision maker like family members or friends will determine in the best interest of the patient.

Discussion of Education Laws on Compulsory Education and its Limitations for the Gifted (영재에 대한 의무교육 제도의 교육법적 검토)

  • Park, Chang-Un;Seo, Hae-Ae
    • Journal of Gifted/Talented Education
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    • v.18 no.3
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    • pp.543-568
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    • 2008
  • The study attempted to articulate standpoints towards compulsory education system based on schooling age and year in careful considerations with the gifted. For these ends, literatures were reviewed and various education laws, regulations and documents and related law reports and judicial decisions were investigated. Literature review was conducted to develop that ideas of rights to compulsory education for regular students are closely related to those for gifted. Structures of general education laws and gifted education law and regulations were compared. Later, limitations of compulsory education were discussed when it was applied for the gifted. In conclusions, it is inappropriate that the gifted are ruled by compulsory education system based on schooling age. If compulsory education system is designated to provide an effective opportunity for all students, it should be duties and rights to enter elementary schools at schooling age. However, it appeared that the duties and rights to enter elementary schools at certain schooling ages function as inhibitors against the gifted with giftedness and potentials far beyond those of regular students. Therefore, the gifted should be separately ruled under flexible systems of compulsory education if their achievement level is assessed as sufficient to enter elementary schools before schooling age. On the other hand, legal systems of compulsory education are gradually evolved to flexible systems. However, it is necessary to establish social atmosphere and support system of educational administration in order to practice the flexible system of compulsory education for the gifted.

A Study on the Linkability of Public Information Using Social Network Analysis (사회 연결망 분석을 활용한 공공데이터 간 연관성에 관한 연구)

  • Jeong, Da Woon;Yi, Mi Sook;Shin, Dong Bin
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.35 no.6
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    • pp.461-470
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    • 2017
  • In Korea, starting with the Government 3.0 Policy, the utilization of public data as an important driving force to promote economic growth has been highlighted as a major issue. However Korea is currently only able to open and provide accumulated data stored in the public domain. To resolve this issue, we need to not only open and provide public information, but also to create new information by linking the data and developing related services. Thus, this study analyzes the linkability of public information and provides lists of the linkable public data. In order to do this, we first have performed preconditioning processes on the accessibility and workability of the data. Next, we have deduced the major keywords in public data through analyzing the morphemes, and then the core keywords (Top 10) and their linkable keyword lists through an analysis of social networks. Based on the outcome of this study, a subsequent study will deduce new information by linking the public data and creating various services and information contents. Furthermore, not only conceptual but also practical linking measures need to be created, and a related law must be prepared.