• Title/Summary/Keyword: Local source

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The Development of Digital Art Archives Using CollectiveAccess for Local Arts Organization : A Case of J Art Association (CollectiveAccess를 활용한 지역예술단체 디지털 아트 아카이브 구축 - J미술협회를 중심으로 -)

  • Park, Jun-Hyeong;Park, Ji-Won;Han, Hui-Lyeong;Jeong, Ji-Na;Kim, Yong
    • Journal of Korean Library and Information Science Society
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    • v.48 no.3
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    • pp.303-331
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    • 2017
  • Local Arts Organization has performed various events in the provinces such as performances, exhibitions, competitions, and festivals, has been a place where local artists share information of arts, and has contributed greately to the development of art culture in the provinces for a long time. Records of Local Arts Organization are historical records showing the level and value of past and present local cultural arts, so systematic management and preservation is necessary. Also, since the records of Local Arts Organization are high in interest and demand of users, exhibition services are needed to show them effectively. Therefore, this study shows how to construct a Local Arts Organization based on CollectiveAccess, which is open software, to manage Local Arts Organization and provide exhibition services.

Experimental Simulation of Local External Forcing of the Contained Rotating Flow (회전반 유체실험에서 국지적 외력의 실험적 모의)

  • Yi, Chang-Won;Na, Jung-Yul
    • The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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    • v.5 no.2
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    • pp.77-85
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    • 2000
  • Simulation of local external forcing and its response in the rotation table experiment has been investigated. Spatially-uniform external forcings have been applied in many experimental studies, however, based on the fact that the north-south distribution of the wind-stress curl and the existence of local maximum of the sea surface heat loss in the northern part of the East Sea, new method of combined effects of local forcings has been employed in separate experiments. Carefully designed local source or sink at the bottom of the cylindrical container can produce horizontal pressure gradient within the Ekman layer, and consequently the interior also attains the same pressure gradient that produces geostrophic interior circulation. In order to keep free surface during the local-surface cooling, a side-wall cooling method is suggested. For the various type of local forcing including the effects local cooling and the periodic change of local wind-stress curl, western-boundary flow in terms of its strength, position of separation from the boundary have been observed.

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Sound Source Investigation of Outer Rotor BLDC Motor (외부회전자형 BLDC 전동기의 소음원 규명)

  • Lee, Chang-Min;Shin, Young-Hun;Moon, Jung-Won
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.22 no.3
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    • pp.208-213
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    • 2012
  • With great advancement of the automobile functions, environmental factors become important performances, especially noise. This paper investigates noise sources of outer rotor type BLDC motor using in the air-conditioner of the automobiles. To this end, this paper is analyzed two viewpoints, structural and electromagnetic causes. Structural analysis is conducted through modal test and analysis. For modal analysis, 3D finite element analysis is carried out using commercial program ansys. Electromagnetic causes are analyzed from local force that is computed by Maxwell stress tensor method. Local force excites structure of motor directly. Finally, correlation analysis is performed to determine effect between noise causes.

Fashion Paradigm of 'Slowness' on Contemporary Fashion (현대 패션에 나타난 '느림'의 패러다임)

  • Ham, Youn-Ja
    • Fashion & Textile Research Journal
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    • v.11 no.4
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    • pp.527-536
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    • 2009
  • The purpose of this study is to consider the characteristics of fashion paradigm on contemporary fashion in pursuit of social change towards 'slowness'. As for the research methodology, literature survey has been undertaken. The results of this study can be summarized as followings. First, eco-friendly ethics towards sustainability is in taking action. The concept of 'cradle-to-cradle' is realized through reuse, recycle, organic material, and no use of chemical. Second, local diversity is revolving quality and longevity. Good quality of fashion made by artisans and specificity in local area is to be kept last. Third, people are recast in roles from simple consumers to self-made producers of their clothes. Users of clothes are more active and skilled role in practice of handmade, reform, DIY, and open-source design. In Conclusion, the fashion paradigm of 'slowness' is about designing, producing, consuming and living better to combine ideas for sense of nature's time, culture's time and people's time.

Receiver Front-End of Radar for the Coherent Operation (코히어런트 동작을 위한 레이다 수신기 전단부)

  • Lee, Taek-Kyung
    • Journal of Advanced Navigation Technology
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    • v.4 no.1
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    • pp.1-10
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    • 2000
  • When the magnetron is employed as a radar transmitter source, the receiver needs to detect the frequency and the phase of the transmitting signal for the coherent operation. The local oscillator frequency is tuned for the stable intermediate frequency and the coherent oscillator generates the stable signal which is phase-locked to the transmitting signal. In this paper, we designed and implemented the receiver front-end including AFC(Automatic Frequency Control) circuit, STALO(Stable Local Oscillator) and COHO (Coherent Oscillator) unit.

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Issues on the Maritime Boundary Disputes in Korean Territorial Seas (지방자치단체간 해상경계분쟁의 실태 및 쟁점)

  • 장학봉
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.8 no.2
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    • pp.45-52
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    • 2002
  • Recently there have been growing disputes between neighboring local governments over jurisdictional rights or property rights of ocean resources in Korean coastal waters. The reasons for the disputes come mainly from the increasing interests by local governments that begin to see the oceans as the source of resources and wealth. The maritime dispute is more complicated and sticky than the inland ones, and requires not only socio-economical but political approach, therefore sometimes demanding a plenty of time and endeavor. Also coastal states that have suffered from maritime boundary problems have different issues under the different environment and historical background. For Korea, as the maritime boundary issue has very recently soared to the surface, though it was latent for the period as long as 20 years, we have just taken steps toward an institutional approach on it, seemingly more to go to reach an agreeable resolutions to the disputes. This paper highlighted the issues surrounding the maritime boundary on the sea surrounding Korean peninsular after addressing the current situation of the boundary disputes. It will help explore and assess the possible solutions to the boundary conflicts over the lateral boundary between local governments.

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Studios on the Tobacco Mosaic Virus (TMV) Resistance in Tobacco Introduction ( Nicotiana tabacum L.) (Tobacco Introduction(T.I.)의 담배 모자이크 바이러스(TMV) 저항성에 관한 연구)

  • 정윤화;이승철;황주광
    • Journal of the Korean Society of Tobacco Science
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    • v.2 no.2
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    • pp.51-57
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    • 1980
  • Thirty-one Tobacco Introduction (Nicotiana tabacum L.) lines from Agricultural Research Service, United States Department of Agriculture, were assayed for their resistance to tobacco mosaic virus. The T.1.'s were grouped into two classes according to symptoms - symptomless and local lesion. Tobacco Introductions in the symptomless group yielded better than the local lesion group but the leaf quality was lower. The chemical composition of cured leaves was similar in both groups. Considering various agronomic characters, T.I. 1504 in the local lesion group is recommended as a new source for the breeding of TMV resistance.

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Development of the Simulation Model of Micro-Grid using PSCAD/EMTDC (PSCAD/EMTDC를 이용한 마이크로그리드의 시뮬레이션 모델 개발)

  • Son, Kwang-M.;Lee, Kye-B.;Hong, Jun-Hee
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.56 no.3
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    • pp.457-464
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    • 2007
  • Micro-Grid comprising Micro-Sources supplying several $kW{\sim}MW$ power to local customers is environmentally friendly and reliable. This paper deals with the development of simulation models of Micro-Grid on the PSCAD/EMTDC platform for analyzing various aspects of the interaction of the Micro-Grid. The developed switching level model adopts the space vector PWM. Both switching level and power frequency Micro-Source models are developed, which shows that power frequency modeling is sufficient for analyzing the phenomena of interest. Control characteristics of the Micro-Sources with the parameter and load power variation are analyzed for power quality enhancement. The simulation results show that the developed models are effective for studying Micro-Grid.

The first application of modified neutron source multiplication method in subcriticality monitoring based on Monte Carlo

  • Wang, Wencong;Liu, Caixue;Huang, Liyuan
    • Nuclear Engineering and Technology
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    • v.52 no.3
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    • pp.477-484
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    • 2020
  • The control rod drive mechanism needs to be debugged after reactor fresh fuel loading. It is of great importance to monitor the subcriticality of this process accurately. A modified method was applied to the subcriticality monitoring process, in which only a single control rod cluster was fully withdrawn from the core. In order to correct the error in the results obtained by Neutron Source Multiplication Method, which is based on one point reactor model, Monte Carlo neutron transport code was employed to calculate the fission neutron distribution, the iterated fission probability and the neutron flux in the neutron detector. This article analyzed the effect of a coarse mesh and a fine mesh to tally fission neutron distributions, the iterated fission probability distributions and to calculate correction factors. The subcriticality before and after modification is compared with the subcriticality calculated by MCNP code. The modified results turn out to be closer to calculation. It's feasible to implement the modified NSM method in large local reactivity addition process using Monte Carlo code based on 3D model.

External cost Forecasting of Virtual Point Source in Suwon Area Using Impact Pathway Analysis - A Comparison of Suwon to Paris - (영향경로해석을 이용한 수원시 가상 점오염원의 외부비용 예측 - 수원시와 파리시 비교분석을 중심으로 -)

  • Jeong, Sang Jin
    • Journal of Environmental Impact Assessment
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    • v.14 no.5
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    • pp.291-303
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    • 2005
  • Impact pathway analysis(IPA) is a bottom-up approach to estimates health and environmental risks from emissions of classical pollutants (eg. $PM_{10}$, $SO_2$, $NO_x$ and CO). The model starts from the emission rates of facility, calculates the yearly mean concentrations of pollutants at the ground level using atmospheric dispersion models. After this, proper epidemiological exposure-response functions are applied to determine the impact on the receptors. Finally the methodology can monetise the calculated physical impact on the basis of selected economic evaluation. The aim of this study is to evaluate an external cost of virtual point source in Suwon area using IPA. The results shows minor modification of local input data can make it possible to apply the model to Suwon area.