OHTANI Hideo

Organization

Faculty of Environment and Information Sciences, Division of Artificial Environment and Information

Title

Professor

Date of Birth

1955

Research Fields, Keywords

Safety Engineering,Social System Engineering

Mail Address

E-mail address



Graduating School 【 display / non-display

  •  
    -
    1978

    The University of Tokyo   Faculty of Engineering   Graduated

Graduate School 【 display / non-display

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    -
    1983

    The University of Tokyo  Graduate School, Division of Engineering  Doctor Course  Completed

Degree 【 display / non-display

  • Dr. of Engineering -  The University of Tokyo

External Career 【 display / non-display

  • 1987.04
    -
    1989.03

      Researcher  

  • 1983.04
    -
    1987.03

      Researcher  

Academic Society Affiliations 【 display / non-display

  •  
     
     
     

    Japan Association for Fire Science and Engineering

  •  
     
     
     

    Japan Society for Sadety Engineeeing

  •  
     
     
     

    International Association for Fire Safety Science

  •  
     
     
     

    Chemical Sciety of Japan

Field of expertise (Grants-in-aid for Scientific Research classification) 【 display / non-display

  • Social System Engineering

  • Safety Engineering

 

Research Career 【 display / non-display

  • Evaluation of explosion hazard concerning semiconductor material gases

    Project Year:  -   

  • Simulation of extinguishment of a large tank fire

    The Other Research Programs  

    Project Year:  -   

  • Risk Assessment on Chemical Plant

    Project Year:  -   

  • Development of novel fire extinguishing agent

    Project Year:  -   

Thesis for a degree 【 display / non-display

  • 高分子物質の自然対流下における燃焼に関する研究

    大谷英雄 

      1983.03

    No Setting   Single Work

Papers 【 display / non-display

  • Risk and Dream

    Ohtani Hideo

    Journal of Japan Society for Safety Enginennring ( Japan Soceiety for Safety Engineering )  58 ( 1 )   1 - 1   2019  [Invited]

    Single Work

    DOI CiNii

  • Public Perceptions of the Physical Risks Associated with Fires and Toxic-gas Releases: A Questionnaire Survey

    Koshiba Yusuke, Ohtani Hideo

    Journal of Japan Society for Safety Enginennring ( Japan Soceiety for Safety Engineering )  57 ( 2 )   145 - 154   2018

    Joint Work

     View Summary

    <p>This study conducted a questionnaire-based survey to 121 residents living close to a chemical facility in order to investigate the characteristics of perceptions of the physical hazards: fires and toxic-gas releases. The survey revealed that those who did not directly detect the hazards by the senses did not evacuate from their houses. Respondents in this study judged that perceived risks associated with toxic-gas release accidents are higher than those associated with fire accidents. The investigation also demonstrated that the presence of children in households has significant effects on perceived risks concerning toxic-gas release accidents. The results given in the present study provide a clue to understanding the characteristics of perception of risks associated with physical hazards-fire and toxic chemical release-, to improving risk/crisis communication strategies, and to designing mitigation management.</p>

    DOI CiNii

  • Ferrocene-Containing Emulsion-Based Fire-Extinguishing Agents

    Yusuke Koshiba, Takuya Tomita, Hideo Ohtani

    Fire Science and Technology ( 東京理科大学 総合研究機構 火災科学研究センター )  36 ( 1 )   1 - 9   2017.12  [Refereed]

    Joint Work

    DOI

  • An effective safety education on fire fighting strategy through fire extinguishment experiment using portable powder extinguisher

    NAKAMURA Yuji,TORIKAI Hiroyuki,OGAWA Yoshio,OHTANI Hideo,SATO Kenji,DOBASHI Ritsu,TSUJI Yoshiko,HIROTA Masayuki,KIKKAWA Akimitsu,MIKAMI Ken,HASEGAWA Koichi,RYO Sekikou,SAITO Naoshi

      8 ( 3 )   101 - 111   2017.11  [Refereed]

    Joint Work

    DOI CiNii

  • A Questionnaire Survey for College Students on Evacuation Will and Information Delivery in Case of Toxic Gas Release

    Kim Bongchan, Koshiba Yusuke, Ohtani Hideo, and Kwon Youngjin

    Journal of Korean Society of Hazard Mitigation ( Korean Society of Hazard Mitigation )  17 ( 5 )   75 - 83   2017.10  [Refereed]

    Joint Work

    DOI

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Review Papers 【 display / non-display

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Presentations 【 display / non-display

  • A Questionnaire Survey on the Factors Influencing Evacuation Behavior in Case of Toxic Chemical Release Accidents

    KIM Bongchan, SUNOHARA Yuki, KOSHIBA Yusuke, OHTANI Hideo

    The Proceedings of the Industrial, Chemical Machinery & Safety Division Conference  2017   The Japan Society of Mechanical Engineers

     View Summary

    In this study, questionnaire-based survey was conducted for younger adults (n=108) on factors influencing the evacuation behavior in case of leakage of toxic gas. In addition, the means of transportation and informative way were investigated for effective evacuation guidance. Impeding factors for evacuation were then extracted through factor analysis. As a result, the five factors are labeled as follows: 1) environmental, 2) fear, 3) knowledge, 4) anxious about evacuation, 5) contents of information. The survey also revealed that automobile & motorcycle and TV & radio are considered to be the most suitable as the means of transportation and the informative way respectively.

    DOI CiNii

  • GS-7 Identification of solid-phase flame inhibitors from vadadocene

    TAKAHASHI Tomohide, KOSHIBA Yusuke, OHTANI Hideo

    The Proceedings of the Industrial, Chemical Machinery & Safety Division Conference  2014   The Japan Society of Mechanical Engineers

    DOI CiNii

  • S1720102 Explosion characteristics of alkanes in nitrous oxide atmospheres

    NISHIDA Takuya, KOSHIBA Yusuke, OHTANI Hideo

    The Proceedings of Mechanical Engineering Congress, Japan  2014   The Japan Society of Mechanical Engineers

     View Summary

    It is important to know explosive conditions for preventing gas explosion. However, despite the fact that some unexpected explosion accidents were caused by nitrous oxide (N_2O), few studies have been reported on explosion characteristics of flammable gases in N_2O atmospheres. In this study, we focused on explosion characteristics of mixtures containing N_2O. This study experimentally investigated explosion characteristics (e.g., explosion limit, explosion pressure, time to the explosion pressure, deflagration index ) of alkane (carbon number: 1 to 8) - N_2O mixtures in a 0.94-L closed cylindrical vessel at ambient temperature and pressure. The explosion characteristics of the mixtures containing N_2O were compared with those of corresponding mixtures containing O_2 or air. The measurements showed that LELs of the mixtures containing N_2O were lower than those of the mixtures containing O_2. Also, no significant influence of the carbon number on the maximum explosion pressures of the mixtures containing N_2O was observed. The deflagration index of the mixtures containing O_2 were approximately three times as high as those of the mixtures containing N_2O.

    DOI CiNii

  • S1720101 Comparison of physical risks of a chemical plant with different characteristics

    FUJIOKA Taiki, KOSHIBA Yusuke, OHTANI Hideo

    The Proceedings of Mechanical Engineering Congress, Japan  2014   The Japan Society of Mechanical Engineers

     View Summary

    Severe fire and explosion accidents at chemical plants have recently occurred in Japan. Nevertheless, few studies are reported on recognition of physical risks. In this study, we performed a questionnaire survey for inhabitants (n = 121) living near a chemical plant where a fire accident had occurred. This study compares perceived risk of "heat and fire" with that of "toxic gases" by employing Wilcoxon signed-rank and Mann-Whitney U tests. Wilcoxon signed-rank tests show that "toxic gases," which are invisible and hard to understand how risky phenomenon, are perceived as a more serious risk than "heat and fire", which cause not only harm but also losses. U tests show that the distances from the plant to inhabitant's houses had little influence on perceived risk. Besides, inhabitants who have children less than 15 years perceived unacceptable risk of a fire at the plant since they seriously perceived risk of "toxic gases." From these results, even at the same accident, physical risks having different characteristics affect different variables and should not to be treated equally.

    DOI CiNii

  • GS-1 Influence of explosion experience on public perception of risk

    Koshiba Yusuke, Ohtani Hideo

    The Proceedings of the Industrial, Chemical Machinery & Safety Division Conference  2013   The Japan Society of Mechanical Engineers

     View Summary

    In order to explore the influence of experiencing accidental explosions at a chemical plant on public perception of risk, this study investigates perceived risk of inhabitants living near a chemical plant where accidental explosions occurred (group A) and that of inhabitants living near a chemical plant where no serious accident happened (group B). Our questionnaire survey revealed that (1) participants of group A has a greater dread compared to those of group B; (2) the accident experience hardly influence rating of health risks; and (3) "frequency of accidents" variable is a dominant factor that influences decision making whether they participate in physical risk communication or not.

    DOI CiNii

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Preferred joint research theme 【 display / non-display

  • Development of a novel fire extinguishment agent