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Late Quaternary Stratigraphy of the Tidal Deposits In the Hampyung Bay, southwest coast of Korea (한국 서남해 함평만 조간대 퇴적층의 제4기 후기 층서 연구)

  • Park, Yong-Ahn;Lim, Dhong-Il;Choi, Jin-Yong;Lee, Young-Gil
    • The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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    • v.2 no.2
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    • pp.138-150
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    • 1997
  • The late Quaternary stratigraphy of the tidal deposits in the Hampyung Bay, southwestern coast of Korea comprises 1) Unit III (nonmarine fluvial coarse-grained sediments), 2) Unit II (late Pleistocene tidal deposits), and 3) Unit I (late Holocene fine-grained tidal deposits) in ascending order. The basements of the Hampyung Bay is composed of granitic rocks and basic dyke rocks. These three units are of unconformally bounded sedimentary sequences. The sequence boundary between Unit I and Unit II, in particular, seems to be significant suggesting erosional surface and exposed to the air under the cold climate during the LGM. The uppermost stratigraphic sequence (Unit I) is a common tidal deposit formed under the transgression to highstand sea-level during the middle to late Holocene.

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Study of Improved Transporting Methods on Unit Module (유닛모듈 운송 방법의 개선방향 연구)

  • Park, Su-Yeul;Kim, Kyoon-Tai;Park, Nam-Cheon;Jung, In-Su
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2012.11a
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    • pp.243-244
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    • 2012
  • Recently, research has been actively conducted for getting interested in unit module housing. However, the domestic unit modular housing research in the early stages yet, so the major process for research is lacking. Explore all these reasons fit with domestic unit housing development this paper, focusing on the process of shipping cargo by truck, transport unit module was studied. The purpose of this paper is to present new ideas and derive the direction of the development of the equipment safely and effectively fixed to the unit module of the transport unit module that will be helpful in the development of the equipment required for the transport process of the next unit module.

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A Study on the Indoor Airflow Pattern by Changing the Location of Mechanical Terminal Unit (실내 급.배기구 위치변화에 따른 실 공기유동에 관한 연구)

  • Choi, Jeong-Min;Cho, Sung-Woo
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.21 no.3
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    • pp.193-200
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    • 2009
  • The ventilation system of apartments can be divided by supply and exhaust fan, supply fan and exhaust free and supply free and exhaust fan. Recently, the individual ventilation system and central ventilation system which is combined cooling system with duct system are applied to apartment ventilation system. The airflow pattern is affected by location of supply unit and exhaust unit in indoor. This study is to investigate the proper distance between supply unit and exhaust unit using CFD. As a result of this study, the proper distance between supply unit and exhaust unit could be suggested at the interval of 3 m in supply and exhaust fan system and 2.5 m in supply fan and exhaust free.

Blazed $GxL^{TM}$ Device for Laser Dream Theater at the Aichi Expo 2005

  • Ito, Yasuyuki;Saruta, Kunihiko;Kasai, Hiroto;Nishida, Masato;Yamaguchi, Masanari;Yamashita, Keitaro;Taguchi, Ayumu;Oniki, Kazunao;Tamada, Hitoshi
    • 한국정보디스플레이학회:학술대회논문집
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    • 2006.08a
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    • pp.556-559
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    • 2006
  • We successfully developed a high performance and highly reliable blazed GxL device with a high optical efficiency and a high contrast ratio. The device demonstrated superior resistance against a high power laser, which is suitable for a large-area laser projector. We operated the world's largest laser projection screen using this device at the 2005 World Exposition in Aichi, Japan, problem free.

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A Study on the Plan Formation of University Dormitory's Living Unit by Modular Unit (모듈러 유닛에 의한 대학 기숙사 단위 생활공간의 평면 구성에 대한 고찰)

  • Kim, Jung-Heon;Kim, Jin-Mo
    • Journal of the Korean Institute of Educational Facilities
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    • v.16 no.2
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    • pp.37-45
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    • 2009
  • The purpose of this study is to suggest the plan formation for university dormitory's living unit by the modular unit of the pre-fabricated architecture, Pursuing this, this study conducts the investigation of present domestic situation of prefabricated construction and practices plan formation for living unit concentrating on the dweller's satisfaction by solving the problems which hitherto constructed dormitory had, especially collapse of dweller's territoriality. Consequently, this study presents the feasibility of modular unit of present prefabricated construction as a new method of dormitory's living unit construction, and suggests the pertinent plan formation for the improvement of the dweller's territoriality.

Review on Application Tolerance of Unit Hydrograph for Calculating Flood Runoff Hydrograph (홍수 유출 수문곡선 산출에 단위유량도 적용 오차의 정도 검토)

  • Yoo, Ju-Hwan;Yoon, Yeo-Jin
    • Proceedings of the Korea Water Resources Association Conference
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    • 2010.05a
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    • pp.346-349
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    • 2010
  • In this study several unit hydrographs by rainfall storms are derived and moving averaged unit hydrograph is extracted from them based on the rainfall-runoff data in a small basin 8.5 $km^2$ wide. And peak discharges and peak times of the unit hydrographs are investigated and reviewed. And then a representative unit hydrograph of the moving averaged one is applied to the linear convolution integration for obtaining the flood discharge hydrograph and peak discharge and time of its result are researched and inspected. Variance in application of the representative unit hydrograph in a basin on assumption of linearity is appeared and this is given as a counterevidence about that the runoff response from rainfall on a basin has nonlinear characteristics. And As a result of application of derived representative unit hydrograph the errors in peak discharge and time are investigated.

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Comparison of Estimation Method of Pollutant Unit Loads from Bridge Area (교량지역의 다양한 비점오염물질 원단위 산정방법 비교)

  • Kim, Taewon;Gil, Kyungik
    • Journal of Korean Society on Water Environment
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    • v.27 no.5
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    • pp.597-604
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    • 2011
  • This research analyzed the runoff patterns and estimated unit loads of selected pollutatnts using monitored data conducted for three years in a bridge area. Three estimating methods; the arithmetic average method, the regression method and the rainfall class method were used to estimate the unit load. Results of three estimating methods were compared with the unit pollutant loads from landuses in Korea and the unit pollutant loads from urban watersheds in Milwaukee, USA. Unit load using the arithmetic mean method were found to be overestimated. In terms of TSS, unit loads of two estimate were half lower than that of USA. Estimated TN and TP unit loads of three estimate were lower than that of Ministry of Environment in Korea.

A Study on the Cooling Load of South and East Facing Apartment Houses (남향과 동향 집합주택의 냉방부하에 관한 연구)

  • 박근우;이경희
    • Journal of the Korean housing association
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    • v.11 no.2
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    • pp.129-137
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    • 2000
  • This study is about the difference of South and East facing Cooling load of Apartment s Houses using Dynamic Heat-flow Calculation. Therefore, the purpose of this study is come in to use Material for the Thermal Environments of Apartment Houses. The results of the analysis are below. (1) For the peak load of degree hour; The highest is "I" unit and the next high load is H, F, E, C, B, G, D and A unit for the south facing Apartment houses. The higher load is "H" unit and the next high load is I, E, F, B, C, G, D, A Unit for the east facing Apartment houses. (2) For the total load of degree day; The highest load is "I" unit and the next high load is H, G, F, E, C, B, D and A Unit for the south facing Apartment houses. The highest load is "H" unit and the next high load is I, G, E, F, B, C, D, A Unit for the east facing Apartment houses. (3) For the total load of degree day; The highest load is "H" Unit for the east facing Apartment houses and the Lowest load is "A" Unit for the south facing Apartment houses.is "A" Unit for the south facing Apartment houses.nt houses.

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