• Title/Summary/Keyword: 나상진

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이달의 작품

  • Korea Institute of Registered Architects
    • Korean Architects
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    • v.5 no.3 s.19
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    • pp.27-41
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    • 1970
  • PDF

화보

  • Korea Institute of Registered Architects
    • Korean Architects
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    • v.4 no.15 s.15
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    • pp.10-21
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    • 1969
  • PDF

화보<삘딩>

  • Korea Institute of Registered Architects
    • Korean Architects
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    • v.3 no.6 s.6
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    • pp.27-30
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    • 1968
  • PDF

Numerical Simulation of OOP(Out-of-Position) Problem with$5_{th}$ Percentile Female F.E Model ($5_{th}$ Percentile 성인 여성 유한요소 모델을 이용한 OOP(Out-of-Position) 문제에 대한 수치해석)

  • 나상진;최형연;이진희
    • Transactions of the Korean Society of Automotive Engineers
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    • v.12 no.3
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    • pp.177-183
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    • 2004
  • The out-of-positioned small female drivers are most likely to be injured during airbag deployment due to their stature and proximity to the steering wheel and airbag module. In order to investigate the injury mechanisms, some experimental studies with Hybrid III 5% female dummy and with female cadavers could be found from the open literatures. However, the given information from those experimental studies is quite limited to the standard conditions and might not be enough to estimate the airbag inflation aggressiveness regarding on the occupant responses and injury. In this study, a finite element analysis has been performed in order to investigate the airbag-induced injuries. A finite element 5% female human model in anatomical details has been developed. The validation results of the model are also introduced in this paper.

Hydrological Drought Assessment of Agricultural Reservoirs based on SWSI in Geum River Basin (SWSI에 기반한 금강권역 농업용 저수지의 수문학적 가뭄평가)

  • Ahn, So-Ra;Park, Jong-Yoon;Jung, In-Kyun;Na, Sang-Jin;Kim, Seong-Joon
    • Journal of The Korean Society of Agricultural Engineers
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    • v.51 no.5
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    • pp.35-49
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    • 2009
  • This study proposes a method to evaluate agricultural reservoirs drought by modifying SWSI (Surface Water Supply Index). The method was applied to Geum river basin and the results were represented as spatially distributed information. The SWSI evaluates hydrological drought of watershed unit by selectively applying one or all of the components of snowpack, precipitation, streamflow and reservoir storage. South Korea has 22 % of agricultural area, and rice paddy covers 64 % among them. Usually paddy fields scattered along stream are irrigated by so many small agricultural reservoirs. It is difficult to evaluate agriculture drought by the little information and large number of agricultural reservoirs. In this study, seven agricultural reservoirs over 10 million ton storage capacity were selected in Geum river basin, and the SWSI was evaluated for both upstream and downstream of the reservoirs using 16 years data (1991-2006). Using the results, multiple regression analyses with precipitation and reservoir storage as variables were conducted and the equations were applied to other watersheds. The spatial results by applying regression equations showed that the severe and moderate drought conditions of July and September in 1994, June in 1995, and May in 2001 were well expressed by the watershed unit.

Development of $5^{th}$ percentile female finite Element Model for Crashworthiness Simulation - Part II Detail Modeling of Internal Components (충돌 안전도 해석을 위한 $5^{th}$ percentile 성인 여성 유한요소 모델 개발 - Part II 신체 부위 별 상세 모델 개발)

  • 나상진;최형연;이진희
    • Journal of Biomedical Engineering Research
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    • v.25 no.4
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    • pp.283-288
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    • 2004
  • The finite element modeling of small female occupant for crash simulation is presented in this paper subsequently to the part I of articulated rigid body model. The limbs and internal components are additionally modeled by joining them to the articulated rigid body model for predicting the crash injuries such as bone fractures and joint dislocations. The behavioral characteristics of each limbs and internal components were validated against available cadaveric test results. Accordingly, the human model proposed in this paper could be utilized for the investigation of impact injury mechanism and further complement the lacking biofidelity of current crash dummy.