• Title/Summary/Keyword: Scientific simulation

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Simulation in Nursing Education in South Korea: An Integrative Review (한국 간호교육에서의 시뮬레이션: 통합적 고찰)

  • Jang, Ae Ri;Kim, Ja Sook;Kim, Su Hyun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.4
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    • pp.525-537
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    • 2020
  • This study aimed to determine the current state and characteristics of simulation-based operating processes in nursing education based on the Jeffries theoretical framework in South Korea by taking an integrated look at study findings in order to provide a scientific basis for future simulation-based operating processes. We searched eight databases, including the Korea Education and Research Information Service, National Library, Korean Studies Information Service System, National Digital Science Library, Korea Institute of Science and Technology Information, KOREAMED, and Korean Medical Database, using terms "simulation" and "nursing" as keywords in November 2017 in the Korean language. Sixteen studies were identified, reviewed, and appraised in this integrative review. The literature was categorized into these themes: general study characteristics, operation method, teaching and learning methods, subject characteristics, outcome variables, and theoretical framework. The simulation processes in nursing education in South Korea that were analyzed in this study did not fully reflect the main concepts suggested in the NLN Jeffries simulation framework. Thus, simulation program developers need to consider and incorporate a variety of strategies, based on the identification of essential components, to improve simulation effectiveness.

A Study on Flooding·Sinking Simulation for Cause Analysis of No. 501 Oryong Sinking Accident

  • Lee, Jae-Seok;Oh, Jai-Ho;Lee, Sang-Gab
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2018.11a
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    • pp.241-247
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    • 2018
  • Deep-sea fishing vessel No. 501 Oryong was fully flooded through its openings and sunk to the bottom of the sea due to the very rough sea weather on the way of evasion after a fishing operation in the Bearing Sea. As a result, many crew members died and/or were missing. In this study, a full-scale ship flooding and sinking simulation was conducted, and the sinking process was analyzed for the precise and scientific investigation of the sinking accident using a highly advanced Modeling & Simulation (M&S) system of the Fluid-Structure Interaction (FSI) analysis technique. To objectively secure the weather and sea states during the sinking accident in the Bering Sea, time-based wind and wave simulation at the region of the sinking accident was conducted and analyzed, and the weather and sea states were realized by simulating the irregular strong wave and wind spectrums. Simulation scenarios were developed and full-scale ship and fluid (air & seawater) modeling was performed for the flooding sinking simulation, by investigating the hull form, structural arrangement & weight distribution, and exterior inflow openings and interior flooding paths through its drawings, and by estimating the main tank capacities and their loading status. It was confirmed that the flooding and sinking accident was slightly different from a general capsize and sinking accident according to the simple loss of stability.

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A Design and Application of HLA-Based Air Defense Simulation Framework (HLA 기반 대공유도무기 시뮬레이션 프레임워크 설계 및 사례적용)

  • Cho, Byung-Gyu;Kim, Sae-Hwan;Youn, Cheong
    • The KIPS Transactions:PartD
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    • v.12D no.5 s.101
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    • pp.709-718
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    • 2005
  • To correspond with the unpredictable future tactical environment, Ive expanded the application of M&S(Modeling & Simulation) that is more scientific and more economic in a field of weapon system development process. This paper describes experience in development of ADSF(Air Defense Simulation Framework) that supports not only HLA(High Level Architecture) which is an international standard in M&S but also TCP/IP as well as real-time distributed simulation. ADSF has been applied to the M-SAM(Medium Range Surface to Air Missile) System Simulator, and satisfying test results through GPS(Global Positioning System) timer has been acquired. As a result, an ADSF which is able to support HLA and TCP/IP as veil as precise real-time simulation has been successfully made. we were in need or a real-time simulation engine to support Air Defense System Simulators that were consisted of several subsystems.

Study on Establishment of Wind Map of the Korean Peninsula(II. Low-Resolution Wind Mapping and Wind Resource Information System) (한반도 바람지도 구축에 관한 연구(II. 저해상도 바람지도화 및 풍력자원 정보체계))

  • Kim, Hyun-Goo;Jang, Moon-Seok
    • New & Renewable Energy
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    • v.3 no.1 s.9
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    • pp.20-26
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    • 2007
  • A low-resolution national wind map, which is a prerequisite for setting up the national dissemination target and strategy of wind energy development, has been established by numerical wind simulation using the synoptic wind map, developed at the first stage, as an upper boundary condition. Based on the wind map, Wind Resource Information System has been composed in order to support scientific and systematic wind resource assessment and analysis.

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Low-Resolution Wind Mapping For Estimation of Wind Resource Potential (풍력자원 잠재량 산출을 위한 저해상도 바람지도 구축)

  • Kim, Hyun-Goo;Jang, Moon-Seok;Kyong, Nam-Ho
    • 한국신재생에너지학회:학술대회논문집
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    • 2006.11a
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    • pp.307-308
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    • 2006
  • The national goal of wind energy dissemination has to be determined rationally based on technically available wind resource potential. For a reliable and scientific estimation or wind resource potential, a wind map is requisite. This paper presents the national wind map of Korea established by numerical wind simulation. Prediction accuracy of the low-resolution wind map is Improved by nudging QuikSCAT data and is validated by comparing with marine buoy beacon and met-mast measurements. Therefore, quantification of national wind resource potential is now possible and is anticipating to be utilized as a core index for policy and strategy building of wind energy dissemination and technology development.

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On the continuum formulation for modeling DNA loop formation

  • Teng, Hailong;Lee, Chung-Hao;Chen, Jiun-Shyan
    • Interaction and multiscale mechanics
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    • v.4 no.3
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    • pp.219-237
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    • 2011
  • Recent advances in scientific computing enable the full atomistic simulation of DNA molecules. However, there exists length and time scale limitations in molecular dynamics (MD) simulation for large DNA molecules. In this work, a two-level homogenization of DNA molecules is proposed. A wavelet projection method is first introduced to form a coarse-grained DNA molecule represented with superatoms. The coarsened MD model offers a simplified molecular structure for the continuum description of DNA molecules. The coarsened DNA molecular structure is then homogenized into a three-dimensional beam with embedded molecular properties. The methods to determine the elasticity constants in the continuum model are also presented. The proposed continuum model is adopted for the study of mechanical behavior of DNA loop.

Computerized Golf Course Design Techniques Considering Environmental Impacts (환경영향을 고려한 골프코스 전산설계기법)

  • 주영규;전수복
    • Asian Journal of Turfgrass Science
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    • v.8 no.3
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    • pp.179-192
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    • 1994
  • Much attention has been paid recently to environmental destruction by golf course constructions in Koera. An efficiency and up-to-date technology on the planning and design practices has been requested to minimize the environmental impacts. Computerized systems for golf course design in the point of physical conservation of environment were discussed here. Geograpic Information System were applied on the process of geograpical data input and analysis through the final outputs, Simulation works by the total database management make enable to pre-investigate of the design in view of an assessment of environment impacts. It is also possible to evaluate plans easily and propose the alternatives properly. Precise quantity caculation of en-gineering works by computer system should be guarantee scientific, economic, and environme-ntally sound golf course design.

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A Study of Loss Prevention for Methanol Synthesis Process Based on Exergy Analysis (엑서지 해석에 기초한 메탄올합성공정의 손실예방책 연구)

  • Cho, Hyo-Eun;Chung, Yonsoo
    • Clean Technology
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    • v.6 no.2
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    • pp.129-137
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    • 2000
  • A methanol synthesis process via reverse-water-gas-shift and methanol formation reactions has been analyzed using the notion of exergy. The analysis has been based on the simulation results with the aid of real operating data. Driving and material exergy losses have been defined and quantified, respectively. Locations and the reason of major exergy losses have been pinpointed and improvement strategies have been suggested. It had been noted that the exergy analysis can provide a sound scientific base for adopting the concept of industrial ecology and developing loss prevention schemes.

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Variation of Flow Characteristics in the Rotating Suction Sludge Collector (흡입식 슬러지 수집기가 회전할 때의 유동특성 변화)

  • Jin, Hee-Nam;Byun, Jong-Youn;Roh, Hyung-Woon;Suh, Sang-Ho
    • Proceedings of the KSME Conference
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    • 2004.04a
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    • pp.1851-1856
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    • 2004
  • Sedimentation phenomenon of suspended solids occurs by the gravitational force. Pollution particles are separated from slowly flowing wastewater in clarifier. Recently, the sludge suction collector is preferred rather than the scraper type sludge collector due to enhancement of the clarifier efficiency. The sludge suction collector is usually operated by the user's experiences without any scientific and/or technical consideration. To evaluate the performance of sludge suction collector, the three dimensional computer simulation was conducted by the finite volume method. To analyze the performance, the velocity vectors and the suction flow rates of the orifices were investigated. The result showed that each suction flow rate through out the collector was equivalent in the sludge suction collector and the efficiency of suction collector was good to remove high concentrated sludge in clarifier.

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Performance Analysis for Sludge Suction Collector in Clarifier (침전지의 흡입식 슬러지 수집기에 대한 성능해석)

  • Jin, Hee-Nam;Byun, Jong-Youn;Suh, Sang-Ho;Roh, Hyung-Woon
    • 유체기계공업학회:학술대회논문집
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    • 2003.12a
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    • pp.415-420
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    • 2003
  • Sedimentation phenomenon of suspended solids occurs by the gravitational force. Pollution particles are separated from slowly flowing wastewater in clarifier. Recently, the sludge suction collector is preferred rather than the scraper type sludge collector due to enhancement of the clarifier efficiency. The sludge suction collector is usually operated by the user's experiences without any scientific and/or technical consideration. To evaluate the performance of sludge suction collector, the three dimensional computer simulation was conducted by the finite volume method. To analyze the performance, the velocity vectors and the suction flow rates of the orifices were investigated. The result showed that each suction flow rate through out the collector was equivalent in the sludge suction collector and the efficiency of suction collector was good to remove high concentrated sludge in clarifier.

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