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Accident Case

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Sungjoo Hwang – One of the best experts on this subject based on the ideXlab platform.

  • Information Retrieval Framework for Hazard Identification in Construction
    Journal of Computing in Civil Engineering, 2015
    Co-Authors: Moonseo Park, Booyoung Chung, Sungjoo Hwang

    Abstract:

    AbstractThe repetitive occurrence of similar Accidents in construction is one of the most prevalent characteristics of construction Accidents. Similar Accident Cases provide direct information for determining the risks of scheduled activities and for planning safety countermeasures. Moreover, understanding these Cases gives laborers the chance to evade and prepare for an expected Accident in their workspaces. Researchers have developed many systems in order to retrieve and use past Accident Cases. Although the developed systems have a clear and limited target (user), most of them were developed under retrieval methods based on ad hoc systems, which can cause inconvenience to users in using the retrieval system. To overcome these limitations, this study proposes an automated information (about past Accident Case) retrieval system that can automatically search for and provide (as a push system) similar Accident Cases. The retrieval system extracts building information modeling (BIM) objects and composes a q…

  • Information Retrieval Framework for Hazard Identification in Construction
    Journal of Computing in Civil Engineering, 2015
    Co-Authors: Hyunsoo Kim, Hyun Soo Lee, Moonseo Park, Booyoung Chung, Sungjoo Hwang

    Abstract:

    The repetitive occurrence of similar Accidents in construction is one of the most prevalent characteristics of construction Accidents. Similar Accident Cases provide direct information for determining the risks of scheduled activities and for planning safety countermeasures. Moreover, understanding these Cases gives laborers the chance to evade and prepare for an expected Accident in their workspaces. Researchers have developed many systems in order to retrieve and use past Accident Cases. Although the developed systems have a clear and limited target (user), most of them were developed under retrieval methods based on ad hoc systems, which can cause inconvenience to users in using the retrieval system. To overcome these limitations, this study proposes an automated information (about past Accident Case) retrieval system that can automatically search for and provide (as a push system) similar Accident Cases. The retrieval system extracts building information modeling (BIM) objects and composes a query set by combining BIM objects with a project management information system (PMIS). In this Case, a query set is composed based on work, work conditions, and laborers. The suggested information retrieval system compares a query set with past Accident Cases and retrieves similar Cases with their similarity score. The result includes the coordination where similar past Accident Cases can occur on the current site and the past Accident Cases are automatically pushed to the highly relevant laborers. Based on the results of this study, the end users (managers and laborers) can excessively reduce query generation. Furthermore, laborers can easily avoid risks by being provided with similar past Accident Cases that can happen while they work. © 2014 American Society of Civil Engineers.

  • Information Retrieval in Construction Hazard Identification
    Korean Journal of Construction Engineering and Management, 2011
    Co-Authors: Moonseo Park, Sungjoo Hwang

    Abstract:

    The repetitive occurrence of similar Accident is one of the biggest feature in construction disasters. Similar Accident Cases provide direct information for finding risk of scheduled activities and planning safety countermeasure. Many systems are developed to retrieve and use past Accident Cases by researchers. However, these researches have some limitations for performing too much retrieval to obtain results considering construction site conditions or not reflecting characteristics of safety planning steps or both. To overcome these limitations, this study proposes Accident Case retrieval system that can search similar Accident Cases. It also helps safety planning using information retrieval and building information modeling. The retrieval system extracts BIM objects and composes a query set combining BIM objects with site information DB. With past Accident Cases DB compares a query set, it seeks the most similar Case. And results are provided to safety managers. Based on results of this study, safety managers can reduce excessive query generation. Furthermore, they can be easy to recognize risk of a construction site by obtaining coordinations of objects where similar Accidents occurred.

Byung-mo Yang – One of the best experts on this subject based on the ideXlab platform.

  • Validating the Applicability of MACCS2 on the Assessment of Radionuclide Deposition Over the Ocean in Fukushima Daiichi Nuclear Power Plant Accident Case
    Journal of Coastal Research, 2017
    Co-Authors: Kihyun Park, Byung-mo Yang

    Abstract:

    ABSTRACT Kim, S.; Park, K., and Yang, B.-M., 2017. Validating the applicability of MACCS2 on the assessment of radionuclide deposition over the ocean in Fukushima Daiichi nuclear power plant Accident Case. In: Lee, J.L.; Griffiths, T.; Lotan, A.; Suh, K.-S., and Lee, J. (eds.), The 2nd International Water Safety Symposium. Journal of Coastal Research, Special Issue No. 79, pp. 55–59. Coconut Creek (Florida), ISSN 0749-0208. On 11 March 2011, an enormous earthquake and tsunami occurred and caused a severe nuclear Accident at the Fukushima Daiichi Nuclear Power Plant (FDNPP) in Japan. Following the FDNPP Accident, a significant amount of radionuclides were released into the environment. The radionuclides were released into the ocean by direct emission in liquid form or by atmospheric deposition onto the sea surface. According to the 2013 UNSCEAR report, atmospheric deposition of radionuclides significantly contributed to the contamination of the ocean, as did direct emission. The MELCOR Accident Consequence…

Seiichi Oshita – One of the best experts on this subject based on the ideXlab platform.

  • radioactive nuclides in vegetables and soil resulting from low level radioactive fallout after the fukushima daiichi nuclear power plant Accident Case studies in tokyo and fukushima
    , 2013
    Co-Authors: Seiichi Oshita

    Abstract:

    Vegetables and field soils about 60 and 230 km away from the Fukushima Daiichi nuclear power plant were examined for 134Cs and 137Cs radioactivity. The total 134Cs and 137Cs transferred was <7 Bq/kg wet weight in potato tubers grown in fields where the total 134Cs and 137Cs concentration in the soil was ≤1,235 Bq/kg dry weight. For the edible parts of lettuce and cabbage, the total 134Cs and 137Cs concentrations were lower than the detection limit. In this Case, the maximum value in soil was 651.2 Bq/kg dry weight.