• 항공우주산업기술동향
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• 제6권2호
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• pp.69-79
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• 2008

유럽의 우주비행체 시뮬레이터는 요구사항의 증가와 함께 우주비행체 개발 비용에서 높은 비율을 차지하여 개발 비용 절감과 개발 기간 단축의 압력에 직면하고 있다. 현재 유럽은 유럽우주국을 중심으로 다양한 우주프로젝트 경험을 이용하여 소프트웨어 자체의 재사용 연구뿐만 아니라 소프트웨어 요구사항, 설계 노하우, 개발방법론, 경험 등 우주 프로젝트 간의 광범위한 자원 재사용 연구를 활발히 진행하고 있다. 재사용 연구 결과는 시뮬레이션 모델의 표준 제정과 시뮬레이터 개발 프로세스의 효율성 증대로 나타나고 있으며 후속 프로젝트에 적용되어 효과를 입증하고 있다. 본 논문에서는 최근 유럽의 우주비행체 시뮬레이터의 연구동향 추세와 시뮬레이터 소프트웨어 개발 동향을 기술한다.

• 한국치위생학회지
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• 제16권5호
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• pp.677-685
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• 2016

Objectives: The purpose of the study was to investigate the basic materials required for law revision regarding dental hygienists through perceptions and opinions of legislation amendments. Methods: The study was conducted from April 23, 2016. A self-reported questionnaire was completed by 797 dental hygienists in Seoul and Gyeonggido after receiving informed consent from institutional review board (IRB No. PO1-201602-23-001). Results: Necessity for dental hygienist-related medical law revision accounted for 92.4% and 85.4% of dental hygienists replied that specialized dental hygienist system must be established. The reasons for medical law revision were as follows; roles and education of medical technicians (60.6%), settlement of medical legal problems (48.0%), cooperation with other organizations (29.0%), political negotiations (17.4%), and national consensus (9.5%). The score for 'possible to get legal protection by the system establishment of roles and work scope of dental hygienists' was 4.11 of 5 points. Conclusions: It is important to establish the job scope of dental hygienist. The revision of dental hygienist-related law will help to enhance the status of dental hygienists as professional medical technicians in the future.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2004년도 제5회 정기학술발표대회 논문집
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• pp.41-48
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• 2004

시범사업의 목적은 사업관리 수행계획에 따른 업무평가를 통하여 CM의 역할, 효과, 문제점 및 개선점을 도출함으로써 CM 활성화를 위한 제도개선과 모범적 CM사업의 후속발주를 유도하여 국내 건설산업의 선진화를 기하고자 시행되었다. 본 시범사업 사례발표에서는 건설교통부의 국내 CM활성화를 위한 일환으로 실시한 천안백석 2BL 건설공사 시범사업사례를 대상으로 수행계획서에 따른 업무분류 및 수행조직과 자 분야별 관리형태 및 수행성과를 기술하고 그 결과를 토대로 건설사업관리의 제도적, 기술적, 현실적 제반여건 등 문제점을 정리하여 건설사업관리의 기술적 발전방향 및 제도개선사항을 제시하고자 한다.

• 디지털콘텐츠학회 논문지
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• 제19권8호
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• pp.1565-1573
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• 2018

최근의 멀티미디어 컴퓨팅의 비약적 발전은 지금 까지 시도 될 수 없었던 분야로 그 적용 범위를 넓혀가고 있다. 지금까지 후순위로 밀려 온 분야였던 작고 예술인 특히 무용인의 재현도 빛을 보게 되었다. 본 연구는 이러한 작고 무용인의 재현에 멀티미디어 컴퓨팅이 어떻게 적용될 수 있는가를 보였다. 그 일환으로서 기존 무대재현에 많이 동원되는 수작업에 소프트웨어화를 도입하여 작업시간의 단축을 이루었을 뿐만 아니라, 후속작업 시 재사용이 가능하게 될 수 있도록 하였다.

• Geomechanics and Engineering
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• 제15권1호
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• pp.621-630
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• 2018

In the note a comprehensive and optimal passive-active mode for describing the limit failure of circular shallow tunnel with settlement is put forward to predict the catastrophic stability during the geotechnical construction. Since the surrounding soil mass around tunnel roof is not homogeneous, with tools of variation calculus, several different curve functions which depict several failure shapes in different soil layers are obtained using virtual work formulae. By making reference to the simple-form of Power-law failure criteria based on numerous experiments, a numerical procedure with consideration of combination of upper bound theorem and stochastic medium theory is applied to the optimal analysis of shallow-buried tunnel failure. With help of functional catastrophe theory, this work presented a more accurate and optimal failure profile compared with previous work. Lastly the note discusses different effects of parameters in new yield rule and soil mechanical coefficients on failure mechanisms. The scope of failure block becomes smaller with increase of the parameter A and the range of failure soil mass tends to decrease with decrease of unit weight of the soil and tunnel radius, which verifies the geomechanics and practical case in engineering.

• Nuclear Engineering and Technology
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• 제47권3호
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• pp.253-259
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• 2015

The fast neutron reactor BOR-60 is one of the key experimental facilities worldwide to perform large-scale tests of fuel, absorbing, and structural materials for advanced reactors. The BOR-60 reactor was put into operation in December 1969, and by the end of 2014 it had been operating on power for ~265,000 hours. BOR-60 still demonstrates potential capabilities to extend the lifetime of sodium-cooled fast reactors. The BOR-60 lifetime should have expired at the end of 2014. Over the past few years, a great scope of work has been performed to justify the possibility of extending its lifetime. The work included inspection of the equipment conditions, calculations and experimental research on operating parameters and the conditions of nonremovable components, investigation of the structural material samples after their long-term operation under irradiation, etc. Based on the results of the work performed, the residual lifetime was evaluated and the reactor operator made a decision to extend the lifetime period of the BOR-60 reactor. After considering both a set of documents about the reactor conditions and the positive decision of independent experts, the Regulatory Authority of the Russian Federation extended the BOR-60 operating license up to 2020.

• 디지털콘텐츠학회 논문지
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• 제19권1호
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• pp.19-26
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• 2018

공유 저작물 플랫폼은 공유 저작물 활성화를 위해 만들어 졌다. 이용 허락 절차를 간소화 하고 저작자 스스로 이용 범위를 표기해 배포함으로써 저작물 이용을 활성화 한다. 본 연구는 한국 공유저작물 플랫폼의 인터페이스 유형 및 특성을 분석하기 위해 다섯 개의 인터페이스 영역과 열다섯 개의 평가 항목을 선정하였으며, 국가 운영 플랫폼을 중심으로 분석하였다. 국가 운영 공공저작물 플랫폼인 공유마당, 공공누리와 민간 주도인 유로피아나의 웹 인터페이스 유형 및 특성을 분석함으로서 한국 공유저작물 웹 인터페이스의 상황을 비교 분석하고 개선 방안을 제언하고자 한다.

• International Journal of Knowledge Content Development & Technology
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• 제6권2호
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• pp.93-108
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• 2016

Rethinking and re-conceptualization of knowledge organization has become necessary as a result of recent changes brought by digitization, networked resources, and interdisciplinary shifts. This paper calls for a review of curriculum and changes in teaching approaches to respond to these changes. The paper suggests expanding the scope of knowledge organization by adding new topics, and recommends placement of these topics in different courses (introductory or foundation courses, core or required courses, and electives or specialized courses) for a balanced approach. The paper also proposes a change in the mindset about the target of these courses and recommends knowledge organization work be extended from institutions to individuals. It is also suggested that knowledge organization work responsibilities are broadened to involve authors, knowledge workers, and information users rather than restricting it only to trained information professionals. The paper highlights that the digital environment makes it necessary to change the context for teaching KO courses and goes beyond the collection of information resources and addresses personal information management needs as well. The paper concludes that fundamental changes tantamount to re-conceptualization of the area of knowledge organization, which is expected to open up new opportunities for information graduates aspiring to work in information environment beyond libraries.

• Safety and Health at Work
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• 제12권1호
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• pp.1-9
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• 2021

This review article addresses the role of safety professionals in the diffusion strategies for predictive analytics for safety performance. The article explores the models, definitions, roles, and relationships of safety professionals in knowledge application, access, management, and leadership in safety analytics. The article addresses challenges safety professionals face when integrating safety analytics in organizational settings in four operations areas: application, technology, management, and strategy. A review of existing conventional safety data sources (safety data, internal data, external data, and context data) is briefly summarized as a baseline. For each of these data sources, the article points out how emerging analytic data sources (such as Industry 4.0 and the Internet of Things) broaden and challenge the scope of work and operational roles throughout an organization. In doing so, the article defines four perspectives on the integration of predictive analytics into organizational safety practice: the programmatic perspective, the technological perspective, the sociocultural perspective, and knowledge-organization perspective. The article posits a four-level, organizational knowledge-skills-abilities matrix for analytics integration, indicating key organizational capacities needed for each area. The work shows the benefits of organizational alignment, clear stakeholder categorization, and the ability to predict future safety performance.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2022년도 춘계학술발표대회
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• pp.161-164
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• 2022

Homomorphic Encryption (HE) schemes have been recently growing as a reliable solution to preserve users' information owe to maintaining and operating the user data in the encrypted state. In addition to that, several Neural Networks models merged with HE schemes have been developed as a prospective tool for privacy-preserving machine learning. Those mentioned works demonstrated that it is possible to match the accuracy of non-encrypted models but there is always a trade-off in the computation time. In this work, we evaluate the implementation of CKKS HE scheme operations over the layers of a LeNet5 convolutional inference model, however, owing to the limitations of the evaluation environment, the scope of this work is not to develop a complete LeNet5 encrypted model. The evaluation was performed using the MNIST dataset with Microsoft SEAL (MSEAL) open-source homomorphic encryption library ported version on Python (PyFhel). The behavior of the encrypted model, the limitations faced and a small description of related and future work is also provided.