• Title/Summary/Keyword: Washington, D.C.

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Evaluation of INPUFF and ISC Model Using Longterm Tracer Experiment in Washington D.C. (미국 Washington D.C.의 장기간 추적자 확산실험자료를 이용한 INPUFF Model과 ISC Model의 평가)

  • 이종범;송은영;황윤성
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2000.04a
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    • pp.178-179
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    • 2000
  • 최근 들어 인체에 무해하고 대기 중에서 화학반응을 일으키지 않는 추적기체를 이용한 확산실험을 통해 기존의 대기오염 확산모델 등에 대한 평가 및 개선이 많이 이루어지고 있으며, 특정 지형을 대상으로 한 확산실험도 종종 이루어지고 있다. 도시지역에서의 오염물질의 이동과 확산은 오염물질의 농도뿐만 아니라 인근 도시에까지 영향을 미치게 되므로 매우 중요한 과정이다. (중략)

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A Study on the Historical Value and Utilization Plan of the King Kojong's Korean Legation in Washington D.C. (워싱턴 D.C 소재 '대됴션쥬미국공사관(美國華盛頓朝鮮公使館)'의 역사적 의미 해석을 통한 복원 및 활용 방안 연구)

  • Kim, Jong-Hun
    • Journal of architectural history
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    • v.23 no.4
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    • pp.57-68
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    • 2014
  • The Korean Legation in Washington, D.C., is a proof that Emperor Kojong of Chosun Dynasty tried to establish relationship with the U.S. in 1891, that was before the declaration to establish Korean Empire. In that sense, the building is a historic place. The legation building is a symbolic place attesting to the turbulent history at the time of 1890 to 1910, when Korea had to suffer the forced treaty with Japan in 1905 and the annexation into Japan, and then to the 20th century up to the present time, 2014. The legation building can be turned into a space to host well-planned exhibits to show Korea's history and culture to local residents, foreign visitors to Washington, D.C., and overseas Koreans. The followings are the basic principles for the future use of the legation in line with the basic direction. The building's use should not be limited to museum, but should be flexible to accommodate various different practical usage. It is necessary to make the Korean Legation building that can incorporate the characters and the history through modern interpretation of the historicity of the place, the Korean culture, and historical events. The future usage of the Korean Legation building should enhance the value as a cultural heritage by linking the interpretation of the historical events and real life shown through exhibits, performance and people.

A Study on the First Korean Legation Building, The Fisher House, in Washington, D.C. (최초의 주미조선공사관 피서옥(皮瑞屋) 개설과 그 의미에 관한 연구)

  • Kim, Jong-Hun
    • Journal of architectural history
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    • v.28 no.6
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    • pp.77-85
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    • 2019
  • The Fisher House, the first Korean Legation in the USA was located at 1513 O Street in Washington, D.C. This house was a three-story brick building with a height of 12.2m(8.84m up to the eaves) and a mansard roof. Facing the street, it is 7.32m (24 feet) wide and 23.6m(77.4 feet) depth. There is a long hallway after the entrance and a parlor with a grand fireplace next to it. This long hallway leads to a central hallway with another fireplace and a central staircase connecting the 2nd and 3rd floors. After the stairs a dining room is with a fireplace in the middle, which then leads to a pantry for dishes and the kitchen. It can also be argued that The Fisher House was the first Western-style residence for Koreans who were officially dispatched from the government. On the other hand, when living in The Fisher House, Park Jung-yang, who was sent on the three premises of the Yeonjak, directly experienced how the United States sought independence from the U.K. through the Declaration of Independence, Mount Vernon, the Washington monument, the Arlington National Cemetery, and battlefields. Even though he was summoned back to Korea by China in less than a year, Park Jung-yang actively supported the independence movement when he became acting prime minister in 1896. In this regard, The Fisher House arguably is the birthplace of Korea's independence movement.

Heat resistance of carbon nanoonions by molecular dynamics simulation

  • Wang, Xianqiao;Lee, James D.
    • Interaction and multiscale mechanics
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    • v.4 no.4
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    • pp.247-255
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    • 2011
  • Understanding the structural stability of carbon nanostructure under heat treatment is critical for tailoring the thermal properties of carbon-based material at small length scales. We investigate the heat resistance of the single carbon nanoball ($C_{60}$) and carbon nanoonions ($C_{20}@C_{80}$, $C_{20}@C_{80}@C_{180}$, $C_{20}@C_{80}@C_{180}C_{320}$) by performing molecular dynamics simulations. An empirical many-body potential function, Tersoff potential, for carbon is employed to calculate the interaction force among carbon atoms. Simulation results shows that carbon nanoonions are less resistive against heat treatment than single carbon nanoballs. Single carbon nanoballs such $C_{60}$ can resist heat treatment up to 5600 K, however, carbon nanoonions break down after 5100 K. This intriguing result offers insights into understanding the thermal-mechanical coupling phenomena of nanodevices and the complex process of fullerenes' formation.

Effects of Geography, Weather Variability, and Climate Change on Potato Model Uncertainty

  • Fleisher, D.H.;Condori, B.;Quiroz, R.;Alva, A.;Asseng, S.;Barreda, C.;Bindi, M.;Boote, K.J.;Ferrise, R.;Franke, A.C.;Govindakrishnan, P.M.;Harahagazwe, D.;Hoogenboom, G.;Naresh Kumar, S.;Merante, P.;Nendel, C.;Olesen, J.E.;Parker, P.S.;Raes, D.;Raymundo, R.;Ruane, A.C.;Stockle, C.;Supit, I.;Vanuytrecht, E.;Wolf, J.;Woli, P.
    • Proceedings of The Korean Society of Agricultural and Forest Meteorology Conference
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    • 2016.09a
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    • pp.41-43
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    • 2016
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Cyclic performance of residential air-to-air unitary heat pump (주택용 열펌프의 단속운전성능)

  • Min, Man-Ki
    • The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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    • v.12 no.4
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    • pp.219-226
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    • 1983
  • Cyclic heating performance of 3 ton air-to-air unitary heat pump installed in a residence in the Washington, D.C. area was determined by applying the bin method to field test result. Cyclic degradation coefficient Cn of heat pump may be expressed in terms of heating load factor HLF as the following : $$C_D=\frac{1-HLF^m}{1-HLF}$$ where $$C_D{\ge}m$$ The less is the value of exponent m, the better is, the performance of a heat pump, depending upon the heat pump design.

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