• 한국디지털건축인테리어학회논문집
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• 제6권2호
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• pp.9-16
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• 2006

The research want to know about form creation method's special quality that found in digital construction design process that using digital media, and they comparison analysis that who positive using digital media, Frank O. Gehry, Peter Eisenman, Greg Lynn, UN studio's work. First, In digital design process using digital media is make full use to design unfolding step and application way can change by architect's recognition difference of using digital media and each architect's design general idea unfolding process, and it means form creation process can change. Second, In digital design process a building form doesn't design adaptation to construction system, they directly design the third dimension form. So, they deduction a new form that unification and integration. Third, the architect that appear's in digital design process's part is existing, data from position of the master which it selects the coding selects the outcome goods which appears in computer operation with coordinator role of the originality and construction sense which it is visible.

• 한국실내디자인학회논문집
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• 제16권5호
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• pp.126-133
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• 2007

This study is intended to set the concept of becoming meaning of digital space through digital technology and to study the influence of digital space on becoming of real space through derived keyword. The results of this study are summarized as follows. First, the digital concept is created in the process that the virtual space is changed into the real space with a priority given to form, space and time. Digital expression concept and image concept the structural becoming, and idea concept and creative concept creates the time becoming. Second, the concept of digital becoming exposes a physical visibility through the digital's virtual image, and non-space spatiality through the space simulation. It also continuously reveals a consecutive time and non-consecutive time through a statable progress, incremental progress, and dynamic progress. Third, as the influence of digital on becoming of real space, the digital visibly not only expresses the new and difficult becoming problem through conceptual virtuality, but also can review the real space's space concept with virtuality in the digital non-area. Digital's durability expresses the new space's existence by physically combining with the existing space through the virtual form creation.

• 치과방사선
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• 제24권2호
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• pp.439-450
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• 1994

Recently, the digital image was introduced into radiological image. The digital image has the power of contrast enhancement, histogram control, and other digitally enhancement. At the point of the resolution, periapical radiograph is superior to the digital image, but enhanced digital procedure improves the diagnostic ability of the digital image. The purpose of this study was to evaluate the diagnostic ability of artificial proximal caries in conventional radiographs, digital radiographs and enhanced digital radiographs (histogram specification). ROC (Receiver Operating Characteristic) analysis and paired t-test were used for the evaluation of detectability, and following results were acquired: 1. The mean ROC area of conventional radiographs was 0.9274. 2. The mean ROC area of unenhanced digital image was 0.9168. 3. The mean ROC area of enhanced digital image was 0.9339. 4. The diagnostic ability of three imaging methods was not significant difference(p>0.05). So, the digital images had similar diagnostic ability of artificial proximal caries to conventional radiographs. If properly enhanced digital image, it may be superior to conventional radiographs.

• 복식
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• 제58권6호
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• pp.42-53
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• 2008

This study is about the development of Fashion Design using of Korean Motive applied Digital Medium. With rapid change during the 21st century, digital media has emerged as the most important communication tool to facilitate speedy and interactive conversation. The recent emergence of 'Mass Customization' is a good reflection of digital transition's interactive features, realizing product variation and customization through flexibility and immediate responsiveness. In this so-called digital era, fashion is a tool that facilitates the use of digital media, while acting as the object, or the purpose, where digital media can be applied. This study looked at the development situations and future utilization method regarding digital fashion, which was recreated through digital media. In this study, a new design process was developed through digital media and actually manufactured Korean image clothing to reflect the motif of plant found in Korean folk paintings. Three-Dimensional(3D) digital shape was dressed in virtual clothing for comparison, thereby adding some features of textile design to three-Dimensional(3D) shape. Through the process, the study can provide various potential accesses to future development of fashion design utilizing digital media.

• 한국통신학회논문지
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• 제11권5호
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• pp.315-322
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• 1986

本 論文은 　圓函數를 利用한 IIR digital 필터 設計에 關하여 硏究한 것이다. Digital 　圓函數는 analog 　圓函數로부터 Bilinear z 變換에 依하여 求하였다. Bilinear z 變換된 函數로 digital필터를 設計하면 aliasing 現象은 避할 수 있으나 周波數歪曲이 發生한다. Analog函數를 digital函數로 變換하면 이러한 影響으로 遮斷周波數 領域이 不一致하므로 이것을 避하기 爲하여 prewarping法을 利用하였다. 마지막으로, 컴퓨터 simulation에 依하여 analog 크기 特性과 digital 크기 特性을 比較한 結果, prewarping을 한 digital 크기特性이 analog 크기 特性에 比하여 改善되었음을 確認할 수 있었다.

• 정보관리연구
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• 제35권3호
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• pp.139-159
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• 2004

현재 디지털라이브러리는 상호운용성의 문제, 콘텐트 확장의 한계, 편리한 관리 환경의 필요성에 직면해 있다. 이를 해결하기 위해선 표준화와 상호운용성이 전제된 시스템이 필요하다. 이런 문제를 근원적으로 해결해 줄 수 있는 차세대 디지털라이브러리 시스템으로 주목 받고 있는 것이 Open Digital Library이다. 여기서는 Open Digital Library의 사상적 기반이 된 OAI 및 OAI-PMH에 대해 조사하였으며, Open Digital Library 프레임워크, 설계 주안점, 적용사례를 연구하였다. 끝으로 표준화된 요소기술을 활용한 Open Digital Library의 발전방향과 확장성을 제시하였다.

• 품질경영학회지
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• 제45권4호
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• pp.601-610
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• 2017

Purpose: Authors observe the digital twin enabled smart factory and/or digital manufacturing processes where Industry 4.0 technologies and quality management principles intersect. In this regard, this study reviews existing research regarding digital twins from the perspective of quality management. Methods: Initially, attention was given to how digital twins are manifested in the Industry 4.0 environment. Then, authors identify quality management elements amongst digital twin models, to align the concept of quality with the functional purpose of digital twins. After introducing specific examples of quality management tools applied to digital twins, the authors extend the domain of quality management into the analysis of multimedia format quality data obtained through machine vision. Results: Inspired by cases on the quality management application to digital twins, the authors suggest a framework for Industry 4.0 quality management. The envisioned suggested framework encompasses 4 dimensions, namely, 4M&1E, an application time window, new methodologies, and enabling technologies. Conclusion: Finally, the authors unfold the emerging trend of digital twin enabled smart factories, while emphasizing the necessity of quality management in conjunction with the introduction of digital twins.

• 정보처리학회논문지:컴퓨터 및 통신 시스템
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• 제2권2호
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• pp.93-102
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• 2013

최근 대부분의 범죄에 디지털 매체가 사용되면서 디지털 데이터는 필수 조사 대상이 되었다. 하지만 디지털 데이터는 비교적 쉽게 삭제 및 변조가 가능하다. 따라서 디지털 증거 획득을 위해 삭제된 데이터의 복구가 필요하며, 파일 카빙은 컴퓨터 포렌식 조사에서 증거를 획득할 수 있는 중요한 요소이다. 하지만 현재 사용되는 파일 카빙 도구들은 포렌식 조사를 위한 데이터의 선별을 고려하지 않고 있다. 또 기존의 파일 카빙 기법들은 파일의 일부 영역이 덮어써지거나 조각날 경우 복구가 불가능한 단점이 있다. 따라서 본 논문에서는 포렌식 조사시 유용한 정보를 획득할 수 있는 파일을 제안하고, 기존의 파일 카빙 기법보다 효과적으로 데이터를 복구할 수 있는 레코드 파일 카빙 기법을 제시한다.

• International journal of advanced smart convergence
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• 제10권4호
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• pp.84-97
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• 2021

Digital twins are one of the promising digital technologies used to facilitate digital transformation. Therefore, it needs to continually be developed remain relevant in industry and academia. Consolidation of research is required to create a common understanding of the topic and to ensure that future research is built upon a solid foundation. Based on a bibliometric review and a thematic analysis of 217 publications on digital twins from the past two decades, this paper creates and analyzes a visual knowledge map and proposes areas for further research. To comprehensively analyze the development trends and research trends of digital twins, we performed statistical analysis of the relevant literature on digital twins within the core collection database of Web of Science. Through our research, we have shown that the current situation, trends, and hotspots of digital twin research were analyzed via CiteSpace. This study demonstrates that research on digital twins is rapidly growing in popularity, that the output of the research depends largely on the core group of authors conducting it, and that digital twins warrant cross-domain and cross-disciplinary research pathways.

• 보건의료기술평가
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• 제6권2호
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• pp.95-99
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• 2018

As technologies develop, the digital health sector is gradually expanding. Internationally, the global summit for Digital Health named Global Digital Health Partnership (GDHP) was launched in 2018. Many countries are participating in GDHP and share their policy experiences on digital health and find the ways to cooperate with participating countries (13 countries, including South Korea, and Hong Kong). This article reviewed the international trends in digital health policy environment and evidence assessment focusing on GDHP activities, and derived implications for health technology assessment of digital health. Consequently, to assess the intervention effects of digital health is very complex and the assessment should be considered multidimensional aspects (social, clinical, and technical). In addition the patient experience should be assessed qualitatively. Health technology assessment (HTA) should assess the effect of digital health policies to changes in health care systems resulting from the application of advanced technologies related to the 4th Industrial Revolution. Digital health is also related to new HTA, HTA of existing technologies, and R&D on the promising health technology. Therefore, it is necessary to review the trends of the technology's management policy consistently through the HTA of digital health.