• Title/Summary/Keyword: linked-data

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Development of CAE Data Translation Technique for a Virtual Reality Environment (가상현실 환경을 위한 해석데이터 변환 기술 개발)

  • Song, In-Ho;Yang, Jeong-Sam;Jo, Hyun-Jei;Choi, Sang-Su
    • Korean Journal of Computational Design and Engineering
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    • v.13 no.5
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    • pp.334-341
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    • 2008
  • Computer-aided engineering (CAE) analysis is considered essential for product development because it decreases the simulation time, reduces the prototyping costs, and enhances the reusability of product parts. The reuse of quality-assured CAE data has been continually increasing due to the extension of product lifecycle management; PLM, which is widely used, shortens the product development cycle and improves the product quality. However, less attention has been paid to systematic research on the interoperability of CAE data because of the diversity of CAE data and because the structure of CAE data is more complex than that of CAD data. In this paper, we suggest a CAE data exchange method for the effective sharing of geometric and analysis data. The method relies on heterogeneous CAE systems, a virtual reality system, and our developed CAE middleware for CAE data exchange. We also designed a generic CAE kernel, which is a critical part of the CAE middleware. The kernel offers a way of storing analysis data from various CAE systems, and, with the aid of a script command, enabling the data to be translated for a different system. The reuse of CAE data is enhanced by the fact that the CAE middle-ware can be linked with a virtual reality system or a product data management system.

Derivation of Data Demand through Analysis of Agreed Terms and Conditions on Environmental Impact Assessment - Focusing on the Water Environment - (환경영향평가 협의 내용 분석을 통한 데이터 수요 도출방안 - 수환경 분야를 중심으로 -)

  • Jinhoo Hwang;Yoonji Kim;Seong Woo Jeon;Yuyoung Choi;Hyun Chan Sung
    • Journal of Environmental Impact Assessment
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    • v.32 no.1
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    • pp.29-40
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    • 2023
  • The need for improvement is raised due to limitations with environmental impact assessment, and the importance for data-based environmental impact assessment is increasing. In this study, data demand was derived by analyzing Agreed Terms and Conditions in the Water Environment field (Water Quality, Hydraulic & Hydrologic Conditions, and Marine Environment) of environmental impact assessment. Agreed Terms and Conditions on environmental impact assessment in the water environment field were classified and categorized by environmental impact assessment stage (addition to status survey, impact prediction and evaluation, establishment of reduction measures, post-environmental impact survey), and data demand for each type of consultation opinion was linked. As a result of the categorization of Agreed Terms and Conditions, it was classified into 18 types in the water quality, 15 types in the hydraulic & hydrologic conditions, and 17 types in the marine environment. As a result of linking data demand, the total number of data demand was 236 in the water quality, 98 in the hydraulic & hydrologic conditions, and 73 in the marine environment. The highest number of Agreed Terms and Conditions and data demands were found in the water quality for the evaluation item and establishment of reduction measures, specifically establishment of non-point source pollution reduction measures, for the stage. The numbers were judged to be linked to the relative importance of the items and the primary purpose of environmental impact assessment. The derivation of data demand through the analysis of Agreed Terms and Conditions in the environmental impact assessment can contribute to the advancement of the preparation of environmental impact assessment reports and is expected to increase data utilization by various decision-makers by establishing a systematic database.

Algorithm for Realization Nonlinear Compressed Domain Video/Audio Editor (비선형 압축 영상 편집기 구현 알고리즘)

  • 박종준;정민교;이진호;송문호;김운경
    • Proceedings of the IEEK Conference
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    • 1999.11a
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    • pp.1045-1048
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    • 1999
  • In this paper, we report on a set of new algorithms to realize a nonlinear compressed-domain video/audio editor that overcomes various realization problems. For efficiency, the underlying algorithm, which uses a central data structure in the form of doubled linked lists, performs soft edits of cut and paste (which, in turn, involves soft implementations of frame type conversion) and addresses problems relating to video/audio synchronization and random access, and decoder buffer control.

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Construction of Hierarchical LOD Development Environment and Its Application of Medical Information (계층적 LOD 개발 환경 구축 및 의료 정보 적용)

  • Moon, Hee-Kyung
    • Proceedings of the Korea Information Processing Society Conference
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    • 2017.11a
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    • pp.432-433
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    • 2017
  • 최근 ICT 기술과 의료 빅데이터를 활용한 다양한 연구가 활발하게 진행되고 있다. 이질적인 의료데이터의 공유와 확산을 위해 표준화 데이터 모델로 온톨로지 기반의 Linked Open Data가 대안으로 급부상하고 있다. 특히 의료 빅데이터의 분석을 위한 데이터 셋은 프로토콜화하기 어려운 문제점을 갖고 있다. 본 논문에서는 이러한 문제점을 해결하기 개발된 계층적 LOD 개발 환경 시스템을 기반으로 의료정보를 적용하기 위한 모델링에 중점을 두고자 한다. 본 연구는 의료 빅데이터의 검색과 분석연구 분야에 큰 영향을 줄 것으로 기대하고 있다.

Quantitative Analysis by Derivative Spectrophotometry (III) -Simultaneous quantitation of vitamin B group and vitamin C in by multiple linear regression analysis-

  • Park, Man-Ki;Cho, Jung-Hwan
    • Archives of Pharmacal Research
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    • v.11 no.1
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    • pp.45-51
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    • 1988
  • The feature of resolution enhancement by derivative operation is linked to one of the multivariate analysis, which is multiple linear regression with two options, all possible and stepwise regression. Examined samples were synthetic mixtures of 5 vitamins, thiamine mononitrate, riboflavin phosphate, nicotinamide, pyridoxine hydrochloride and ascorbic acid. All components in mixture were quantified with reasonably good accuracy and precision. Whole data processing procedure was accomplished on-line by the development of three computer programs written in APPLESOFT BASIC language.

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PLC Manager for Incompatible PLCs in a Cell Controller (비호환 기종 PLC들의 통합제어를 위한 PLC매니저 설계)

  • Park, Won-Yil
    • The Transactions of the Korean Institute of Electrical Engineers
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    • v.43 no.4
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    • pp.658-665
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    • 1994
  • CIM is generally considered as a solution for total automation of a manufacturing system. In a CIM system, Flexible Manufacturing System(FMS) is linked colsely to the actual manufacturing line. This study will examine the strategy of integrating incompatible FA equipments, expecially PLCs (Programable Logic Controllers). PLC Manager is proposed as a model for integrating PLC algorithms, whose primary tasks are to communicate line-field data with PLCs and cell controller. To operate it, a PLC script language is designed and implemented.

Search Performance Evaluation for Embedded-based Index Structure (임베딩 기반 인덱스 구조에 대한 검색 성능 평가)

  • Hwang, Ayeong;Lee, Dahyun;Lee, Yongju
    • Proceedings of the Korean Society of Broadcast Engineers Conference
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    • fall
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    • pp.168-171
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    • 2021
  • 최근 시맨틱 웹은 Linked Open Data (LOD)의 사용으로 웹 분야에서 주목을 받고 있다. 이에 LOD 등을 중심으로 검색 고도화 연구가 활발히 수행되고 있다. 그러나 LOD 클라우드를 이용한 효율적인 검색 방법이나 활용 방안을 위한 깊이 있는 연구는 상대적으로 매우 부족한 상황이다. 따라서 본 논문에서는 LOD 클라우드를 효율적으로 구성하기 위한 인덱스 구조를 제안하고자 HYBRID R*-tree 인덱스 구조와 단일 인덱스 구조의 성능을 비교하여 평가한다.

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Evaluation of Mobile Bath Service Linked with Home Care Nursing (가정간호와 연계한 이동목욕 서비스 평가)

  • Kwon, Young-Mi
    • The Journal of Korean Academic Society of Nursing Education
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    • v.11 no.1
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    • pp.16-29
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    • 2005
  • Purpose: The purpose of this study is to find a linkage between mobile bathing services and service learning, and a method to activate mobile bathing services. Method: As a descriptive research, it selected evaluation factors from the aspects of structure, process, and result and analyzed 25-month activities. The data analysis was done with descriptive statistics, t-test, ANOVA, and contents analysis. Result: The mobile bathing services were performed for 67 days during the evaluation period and it was 88.2% of the number of expected activity days. The volunteers participated in the activities were 293 and they provided the service for 124 people. The expense per service provision was 97,771 won. Both recipients and volunteers were highly satisfied with this service. Also, the broadcasting on the activities and awards enhanced volunteers' pride. Conclusion: The mobile bathing services linked with the service program as a part of major course. In particular, the service strengthens problem-solving abilities of nursing students, so it is necessary to develop the mobile bathing services into the service program in pursuit of learning by action.

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Persistence and Change in the Black Forest Ethnic Dress Tradition

  • Hughes, Amy S.;Torntore, Susan J.;Ogle, Jennifer Paff
    • International Journal of Costume and Fashion
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    • v.15 no.1
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    • pp.1-18
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    • 2015
  • The ethnic dress of Germany's Black Forest, called Tracht, dates back to the 16th century. Although most people living within the Black Forest do not presently wear Trachten, some persistence in this tradition exists. This study explored the factors that have supported the persistence of the Trachten tradition, specifically related to the wearing and crafting of Trachten by women, in a contemporary society. A qualitative, ethnographic approach was adopted. Data were collected via observations and interviews in the Black Forest. Thematic analyses revealed that the maintenance of the Trachten tradition was linked to varied factors that revolved around the overarching themes of both persistence and change. Interpretations were supported by theory proposing that ethnic dress is not static, but rather, changes across space and time in ways that enable its persistence. The persistence of the Trachten tradition was linked to formalized practice, meaningful identities, and desires to preserve and promote local culture. Additionally, the persistence of the Trachten tradition was fostered by change in the tradition, including the conceptualization of Trachten as a "lived practice" and the negotiation of Trachten authenticity.