• 한국입자에어로졸학회지
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• 제10권4호
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• pp.155-162
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• 2014

The internal temperature will change depending on operation conditions and material of cyclone dust collector. This study compares the results of collection efficiency and temperature distribution on the different heat flux at wall of dust collector. The previous researcher's experiment results were used to confirm the reliability of CFD(Computational Fluid Dynamics) model. Based on this verified CFD model, we extended the analysis on the cyclone dust collectors. In CFD study, we used RNG k-epsilon model for analysis of turbulence flow, fluid is air, the velocity at inlet is 10 m/s, the temperature of air is $600^{\circ}C$. Because of the difference of outer vortex and inner vortex temperature, the collection efficiency will reduce with the increase of heat flux, showed the highest collection efficiency at heat insulation.

• 한국도서관정보학회지
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• 제49권4호
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• pp.329-349
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• 2018

이 연구에서는 하와이대학교 해밀턴 도서관의 '스페셜 코리안 컬렉션(Special Korean Collecton)'에 주목하여 한국학 자료들의 실제적인 구축 현황을 살피고자 했다. 이 컬렉션에는 마샬 필(Marshall Pihl)의 희귀 도서와, 대학 기관인 '한국학센터(Center for Korean Studies)'가 수집한 자료들이 포함되어 있다. 본고에서는 이를 대상으로 첫째, 한국학 자료들의 실제적인 구축 현황은 어떠한가? 둘째, 학문 분야와 자료의 성격, 그 가치는 무엇인가? 등을 고찰하였다. 이러한 과정을 통해 자료적 가치를 해명하고, 한국학 자료 체계화의 필요성을 제기하였다, 이는 미주 지역뿐만 아니라 동북아시아, 러시아 및 중앙아시아 한국학 자료에까지 확산될 논의이기도 하다. 현재는 이주 초기 한국학 자료들에 대한 전반적인 검토가 부족한 상태라고 할 수 있다. 그 결과 연구사적으로 중요한 자료임에도 불구하고, 동포들의 학문 및 문학, 문화, 예술 등 각 분야에 걸친 자료들을 파악하지 못하고 있는 경우도 상당할 것으로 보인다. 결국 본고는 코리안 컬렉션의 체계화와 향후 방향성을 모색한 시론이라 할 수 있다.

• 한국비블리아학회지
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• 제29권1호
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• pp.209-231
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• 2018

본 연구는 매뉴스크립트 수집정책 구성요소와 관련한 선행연구와 국내외 문학관의 실제 수집정책을 비교, 분석하여 국내 문학관이 수집정책을 수립할 때 고려해야 할 수집정책의 구성 요소를 제안하는데 그 목적이 있다. 문헌연구를 통해 연구자들이 제시한 구성요소와 하위요소의 내용을 분석하였고, 국내외 문학관의 수집정책 사례분석을 진행하였다. 국내사례로는 세계여성문학관의 자료 선정 내규와 국립중앙도서관의 장서개발정책을 참조하였으며, 국외 문학관은 14개의 영미권 문학관을 대상으로 수집정책 원문을 확보하여 비교, 분석하였다. 분석대상 문학관의 수집정책 원문의 구성요소를 내용에 따라 재구성하여 총 27개의 구성요소를 도출하였으며 5가지 주제로 분류하여 분석하였다. 마지막으로, 도출된 구성요소들을 비교분석하여 국내 문학관의 수집정책 수립 시 채택할 수 있는 11개의 기본 요소 및 14개의 선택요소를 제언하였다.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2020년도 춘계학술대회
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• pp.47-47
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• 2020

The Korean National Agrobiodiversity Center holds the more than 1300 accessions of proso millet, but a large portion of accessions are landrace of Korea that has very similar traits. To comprehend the maximum genetic diversity of this crop, a core collection with minimum number of accessions will facilitate easy access to genetic material. Here we assessed the genetic diversity and population structure in a germplasm collection of 830 accessions by employing EST-SSR markers and morphological traits. A total of 107 alleles were detected with an average allele number of 4.9 per locus among the 830 accessions based on 37 EST-SSR markers. The number of alleles per locus ranged from 2 to 7. Polymorphism information content and expected heterozygosity ranged from 0.06 to 0.68 (mean = 0.21) and 0.06 to 0.73 (mean = 0.23), respectively. The germplasm collection was separated into two groups based on population structure analysis, whereas principal coordinate analysis (PCoA) could not cluster accessions according to their geographic origin. Subsequently, a preliminarily developed core collection with a total of 141 accessions (17%) was selected from the whole set of germplasm by combining allelic variations of EST-SSR markers and eight different phenotypic traits. The core collection optimally represented the whole germplasm collection and displayed a similar level of PCoA value and genetic variation from the initial collection. The results obtained here provide a primary resource for further genetic analysis and establish a reference for further development of appropriate genetic breeding strategies.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2002년도 추계학술대회 논문집 Vol.15
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• pp.375-378
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• 2002

There has recently been a great deal of interest in amorphous selenium for application of digital x-ray image sensor. The initial number of the electron-hole induced by interaction a-Se with x-ray photons and the collection efficiency to surface of generated charges are important parameters for x-ray sensitivity of the a-Se. Therefore, in this paper, we analyzed that thickness of a-Se film and electric field is affected on the initial number of electron-hole and the collection efficiency. The experimental value of x-ray induced charge about the various thickness and the electric field is compared with estimated absorbed energy through MCNP 4C code to analyze the mechanism x-ray induced signal of a-Se. The experimental results showed that the electric field depends on initial escape coefficient and the thickness depends on collection coefficient than escape efficient.

• 한국전기전자재료학회논문지
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• 제33권4호
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• pp.326-330
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• 2020

Small-scale production control systems for smart manufacturing are becoming increasingly necessary as the manufacturing industry seeks to maximize manufacturing efficiency as the demand for customized product production increases. Correspondingly, the development of an embedded system to realize this capability is becoming important. In this study, we developed an embedded system based on an open source system that is cheaper than a widely applied programmable logic controller (PLC)-based production control system that is easier to install, configure, and process than a conventional relay control panel. This embedded system is system is based on a low-power, high-performance Cortex M4 processor and can be applied to smart manufacturing. It is designed to improve the development environment and compatibility of existing PLCs, control small-scale production systems, and enable data collection through heterogeneous communication. The real-time response characteristics were confirmed through an operation test for input/output control and data collection, and it was confirmed that they can be used in industrial sites.

• 복식
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• 제63권3호
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• pp.61-77
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• 2013

The purpose of this study is to analyze the concept and characteristics of parody, and consider how parody was reflected in Thom Browne's collection centering on the expressive method. Thus, this study will attempt to shed new light on the creative possibility and artistic value of parody in men's fashion design. The methods are as follows. The ideas, characteristics and expressive methods that represent parody was considered by referencing various related books, papers, art critiques, etc. Based on this theoretical study, a case of Thom Browne's collection (Thom Browne menswear: 2004 S/S-2012 F/W) was observed to find types of parody, attributes and significance. Photo material was collected through websites such as www.thombrowne.com, www.style.com, etc. The type and characteristics of parody expressed in Thom Browne's collection was considered in the following aspects: imitative parody, critical parody and pastiche parody. Through such consideration, it was possible to realize the fashion designs that adapt Thom Browne's parody are very deliberate and calculative. The designs convey exaggeration, destruction of form, emphasis on discontinuity, transition into attraction, aesthetics of unfamiliarity, characteristic aspects of irrationality and contradiction. Through the study, it was possible to see Thom Browne's collection with parody adaptation shaping new creativity and broadening formative aspects in fashion design.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2010년도 하계학술대회 논문집
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• pp.261-261
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• 2010

In electric railways, high speed trains are normally supplied by AC 25kV power by contact between a pantograph contact strip and a contact wire. Advanced railway operating countries are actively researching various areas for the development of contact strips due to the reason that the properties of contact strips are one of the key factors of electric railways. This paper applied nano technology which is rapidly growing in many areas to the contact strip of a pantograph for current collection performance improvement considering speed up of electric railways. In detail, this paper proposes a method to dope nano particles of metal to a Korea Train eXpress(KTX) carbon pantograph and its measurement results. It is expected that the contents of this paper be used for preliminary study of high-speed railway current collection technologies.

• Smart Structures and Systems
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• 제30권3호
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• pp.255-261
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• 2022

When no extensometer is available in a generic tensile-compression test carried out by a universal testing machine (for instance the model BIONIX from Material Testing Systems (MTS)), the test results only provide the relative displacement between the machine grips. The test does not provide any information on the local behaviour of the material. This contribution presents the potential of an application of Digital Image Correlation (DIC) toward the reconstruction of the behaviour along the specimen. In particular, the authors test a Ni-Ti shape memory alloys (SMA) specimen with emphasis on the coupling of the two measurement techniques.

• Mycobiology
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• 제44권3호
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• pp.121-130
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• 2016

Recently, the Fusarium genus has been narrowed based upon phylogenetic analyses and a Fusarium-like clade was adopted. The few species of the Fusarium-like clade were moved to new, re-installed or existing genera or provisionally retained as "Fusarium." Only a limited number of reference strains and DNA marker sequences are available for this clade and not much is known about its actual species diversity. Here, we report six strains, preserved by the Belgian fungal culture collection BCCM/IHEM as a Fusarium species, that belong to the Fusarium-like clade. They showed a slow growth and produced pionnotes, typical morphological characteristics of many Fusarium-like species. Multilocus sequencing with comparative sequence analyses in GenBank and phylogenetic analyses, using reference sequences of type material, confirmed that they were indeed member of the Fusarium-like clade. One strain was identified as "Fusarium" ciliatum whereas another strain was identified as Fusicolla merismoides. The four remaining strains were shown to represent a unique phylogenetic lineage in the Fusarium-like clade and were also found morphologically distinct from other members of the Fusarium-like clade. Based upon phylogenetic considerations, a new genus, Pseudofusicolla gen. nov., and a new species, Pseudofusicolla belgica sp. nov., were installed for this lineage. A formal description is provided in this study. Additional sampling will be required to gather isolates other than the historical strains presented in the present study as well as to further reveal the actual species diversity in the Fusarium-like clade.