• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2009년도 춘계 학술대회 제21권1호
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• pp.233-234
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• 2009

본 연구는 고강도 콘크리트부재의 폭렬방지 대책에서 종래의 내화피복 방법의 문제점윤 개선하고 내화재료의 내화성능향상을 위한 합성내화보드 개발에 관한 가능성을 검토하였다.

• 종양간호연구
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• 제3권2호
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• pp.155-163
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• 2003

This study was designed to assess the level of family function between cancer patient's families and normal families, and to seek better quality family-Mcentered nursing care. The subjects for this study were 95 ca patient's families who were selected from th university hospitals and 95 normal families who selected from 1 university hospital. The instrument used for this study was McMaster Family Assessment Device (FAD) developed by Epstein, Baldwin and Bishop (1983). The scale consisted of 53 items covering 7 areas: 'problem solving', 'communication', 'roles', 'affective responsiveness', 'affective involvement', 'behavior control', and 'general functioning'. As for data analyses, descriptive statistics, ${\chi}^2-test$, t-test, ANOVA were adopted using SAS program. The result of this study was as follows: There there was no significant difference between cancer patient's family function and normal family function. Also there was no significant difference on cancer patient's family function with regard to family characteristics, disease's characteristics, and clinical stage of cancer.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2002년도 학술대회지
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• pp.779-782
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• 2002

We examine the problem in which porous/viscoelastic compliant thin plates are subject to pressure fluctuations under transitional or turbulent boundary layer. Measurements are presented of the frequency spectra of the near-field pressure and radiated sound by compliant surface. A porous plate consisting of 5mm thick, open-cell foam with fabric covering and a viscoelastic painted plate of 1mm thick over an acoustic board of 4m thick were placed over a rigid surface in an anechoic wind tunnel. Streamwise velocity and wall pressure measurements were shown to highly attenuate the convective wall pressure energy when the convective wavenumber ($k_{ch}$) was 3.0 or more. The sound source localization on the compliant walls is applied to the measurement of radiated sound by using an acoustic mirror system.

• 대한기계학회논문집B
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• 제27권3호
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• pp.294-301
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• 2003

We examine a problem in which porous/viscoelastic compliant thin plates are subject to pressure fluctuations under transitional or turbulent boundary layer. Measurements are presented of the frequency spectra of the near-field pressure and radiated sound by compliant surface. A porous plate consisting of 5mm thick. open-cell foam with fabric covering and a viscoelastic-painted plate of 1mm thick over an acoustic board of 4mm thick were placed over a rigid surface in an anechoic wind tunnel. Streamwise velocity and wall pressure measurements were shown to highly attenuate the convective wall pressure energy when the convective wavenumber (k$_{c}$h) was 3.0 or more. The sound source localization on the compliant walls is applied to the measurement of radiated sound by using an acoustic mirror system.

• 한국마린엔지니어링학회:학술대회논문집
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• 한국마린엔지니어링학회 2012년도 전기공동학술대회 논문집
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• pp.184-184
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• 2012

Recently, as a result of the application of large and multi-blade propellers with high efficiency for large vessels, the vertical bending stiffness of propulsion shafting system tends to be declined. For some specific vessels, the shaft arrangement leads to the forward stern tube bearing to be omitted, decreasing vertical bending stiffness. In this respect, decreased vertical bending stiffness causes the problem which is the blade order resonance frequency to be placed within the operational range of propulsion shafting system. To verify whirling vibration, the measurement should be carried out covering the range of MCR, however, the range is un-measurable. To resolve the measurement issue, this study shows the measuring method and the estimating method of whiling vibration by using resonance frequency of sub harmonic.

• Journal of Korean Society for Atmospheric Environment
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• 제15권E호
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• pp.65-71
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• 1999

The log-normal size distribution theories developed recently for aerosol coagulation are reviewed. The analytical solutiosn to Brownian coagulation developed recently for various particle size regimes are reviewed. In order to describe the evolution of the size distribution of a coagulating aerosol over the entire size range, the analytical solutions developed individually for the free-molecule regime, the transition regime, the nearcontinuum regime, and the continuum regime have been combined. The work described here represents the first analytical solution to the aerosol coagulation problem covering the entire particle size range.

• 전자통신동향분석
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• 제35권7호
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• pp.56-66
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• 2020

As the development of artificial intelligence (AI) technology spreads to various industrial sectors, diversity in AI utilization rapidly increases, creating rich user experience. In addition, AI is required to solve various social problems through the use of public data. The spread of AI utilization across all sectors will continue, covering such industrial and public demands. This article examines the domestic and international trends in AI utilization technologies and establishes the direction of research and development (R&D), which is highly consistent with Korea's AI policy. ETRI, which leads AI's national R&D, has used its experience to establish AI R&D implementation strategies as well as technology roadmaps for the utilization of AI to improve individual quality of life, continuous growth in society, industrial innovation, and the solutions to public societal problems. In addition, it has derived tasks and implementation strategies for developing AI utilization technologies in 10 major areas including medical services.

• 한국정보과학회:학술대회논문집
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• 한국정보과학회 2004년도 봄 학술발표논문집 Vol.31 No.1 (B)
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• pp.844-846
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• 2004

가상 기계란 하드웨어로 이루어진 물리적 시스템과 달리 소프트웨어로 제작되어 논리적인 시스템 구성을 갖는 개념적인 프로세서이다. 기상 기계 기술은 프로세서나 운영체제가 바뀌더라도 응용프로그램을 변경하지 않고 사용할 수 있는 장점이 있다. 임베디드 시스템을 위한 기상 기계 기술은 모바일 장치나 디지털-TV 등에 탑재할 수 있는 핵심기술로서 다운로드 솔루션에서는 꼭 필요한 소프트웨어 기술이다. 현재 EVM이라 명명된 임베디드 시스템을 일한 가상 기계에 대하여 연구가 진행 중이다. 이러한 연구의 일환으로 본 논문에서는 기존의 가상 기계를 위안 실행 파일 포맷들의 분석을 기반으로 하여 임베디드 시스템을 위한 실행 파일 포맷인 EVM 파일 포맷(EFF)을 정의한다. 또한 제안한 EFF의 완전성을 증명하기 위하여, 기존에 널리 사용되고 있는 실행 파일인 클래스 파일을 이용해서 구조적으로 증명한다.

• 대한안전경영과학회지
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• 제17권3호
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• pp.105-113
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• 2015

The incidents related to transporting hazardous materials may cause serious impacts on neighborhood and surrounding areas. It is essential to have a real-time safe management system for incidents prevention of transporting hazardous materials. Currently, the system is not integrated into one channel, which makes it difficult to control an incidents response. Another problem is that event status is not appropriately shared among authorities having responsibilities taking down the incidents. This paper investigates previous studies covering the real-time safety management system for hazard material transports and suggests an integrated management system that helps communicate effectively and promptly.

• 무역학회지
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• 제45권5호
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• pp.55-74
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• 2020

This study examines the policy direction and specific countermeasures for addressing possible port labour issues from the perspective of Just Transition which may be raised by closing coal fired power plants in Korea. Current energy transition policy and port labour policy in Korea are reviewed and case studies in the countries which has experienced closure of coal fired power plants are undertaken. Although it varies from country to country, a similar approach was found that the employment problem of coal fired power plant closures and measures based on Just Transition regime to mitigate the negative impacts that occur in the region are the key to successful transition. It is suggested that countermeasures for port labour should be institutionalized for providing stakeholders with legal stability covering labours not only directly employed by the plants but also employed in entities in the whole supply chains.