http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : ( Hiroshi Koseki ) (검색결과 7 건)
- 무료
- 기관 내 무료
- 유료
-
( Hiroshi Koseki ),( Woo Sub Lim ),( Vusaku Iwata ) 한국안전학회(구 한국산업안전학회) 2012 International Journal of Safety Vol.11 No.1
Hazard of Biodiesel (BDF) was studied. Biodiesel is a name for a variety of ester-based fuel made from vegetable oils. Recently importance of biodiesel is increasing, and its fires were sometimes reported. Therefore we studied on hazard of biodiesel comparing (petroleum) diesel oil and vegetable oil, raw materials of biodiesel. We found that biodiesel is auto-oxidized easily and ignites, and its flash point decreases when even small amount of methanol exists. And there are various raw materials to manufacture biodiesel, so we studied the difference of these materials, and their aging on safety.
-
Study on Hazard of Toner Cartridge at Recycle Facilities
( Hiroshi Koseki ),( Yusaku Iwata ),( Woo Sub Lim ) 한국안전학회(구 한국산업안전학회) 2012 International Journal of Safety Vol.11 No.1
Because of development of printing technology, toner cartridge particle becomes smaller and more dangerous. And sometimes we had incidents with dust explosion of toner cartridge particle at recycling facilities in Japan. Therefore we studied on hazard of toner particle relating with dust explosion. We found that toner particle is so dangerous compared with most organic solids, even though it does not belong to hazardous materials in the UN regulation and the Japanese Fire Service Law.
-
Koseki, Hiroshi,Lim, Woo-Sub,Iwata, Yusaku The Korean Society of Safety 2012 International Journal of Safety Vol.11 No.1
Hazard of Biodiesel (BDF) was studied. Biodiesel is a name for a variety of ester-based fuel made from vegetable oils. Recently importance of biodiesel is increasing, and its fires were sometimes reported. Therefore we studied on hazard of biodiesel comparing (petroleum) diesel oil and vegetable oil, raw materials of biodiesel. We found that biodiesel is auto-oxidized easily and ignites, and its flash point decreases when even small amount of methanol exists. And there are various raw materials to manufacture biodiesel, so we studied the difference of these materials, and their aging on safety.
-
Study on Hazard of Toner Cartridge at Recycle Facilities
Koseki, Hiroshi,Iwata, Yusaku,Lim, Woo-Sub The Korean Society of Safety 2012 International Journal of Safety Vol.11 No.1
Because of development of printing technology, toner cartridge particle becomes smaller and more dangerous. And sometimes we had incidents with dust explosion of toner cartridge particle at recycling facilities in Japan. Therefore we studied on hazard of toner particle relating with dust explosion. We found that toner particle is so dangerous compared with most organic solids, even though it does not belong to hazardous materials in the UN regulation and the Japanese Fire Service Law.
-
INFLUENCE OF AERIAL FIRE FIGHTING ON INTENSITY OF RADIATION FROM FIRE
Iwata,Yusaku,Koseki,Hiroshi,Kon,Fumio 한국화재소방학회 1997 한국화재소방학회 학술대회 논문집 Vol.1997 No.-
A large scale fire experiment was conducted through the collaboration between the Tokyo Fire Department and the National Research Institute of Fire and Disaster (NRIFD) for the purpose of studying the effectiveness of aerial fro fighting against urban fire. Ten model houses and ten collapsed model houses were arranged in an area of about <TEX>$2,000\;m^2$</TEX>. Water was dropped totally fourteen times by helicopters onto the model houses. In order to know influence of water drop, radiation was measured by four radiometers and four IR (Infrared) cameras, which were set around the burning area. In this report, the influence of aerial Ore fighting on fire was discussed in terms of irradiance and IR images. Data of irradiance, flame temperature and flame area showed that influence of each water drop continued only at most a minute.
-
Fire Prevention and Export Management of Mixed Metal Scrap
( Atsushi Terazono ),( Masahiro Oguchi ),( Aya Yoshida ),( Hiroshi Koseki ) 한국폐기물자원순환학회(구 한국폐기물학회) 2013 한국폐기물자원순환학회 심포지움 Vol.2013 No.2
Over one million tons of mixed metal scrap is annually exported from Japan to China for recycling purpose. Mixed metal scrap usually contains miscellaneous electric and electronic equipment including hazardous substances and sometimes causes fire. Regarding fires of mixed metal scrap, there are several cases of fire in ports or offshore in Japan recently. Fire incidents are often found at various stockyards as well. In spite of our investigations on some fire sites, the exact cause of the fire is hardly determined. We assume that the fire proceeds in two stages: fire breakout and fire spread. Fire breakout may be caused by lead acid battery, ignition from physical impact between metals, heat accumulation and/or others. Fire spread is easily caused by combustion of oil, plastic and other organic materials which contained in mixed metal scrap. Regarding hazardous substances control, Basel Convention and related domestic law restricts the exportation of recyclable resources when the level of hazardous substances contained in mixed metal scrap exceeds the criteria. However, since the mixed metal scrap is composed of heterogeneous materials, without detail chemical analysis of hazardous substances level, customs inspectors cannot judge hazardous waste or not. Therefore, we propose to create some negative list of electric and electronic equipment for simple clarification for export control.
-
Thermal characteristics of Hydroxypropyl Methyl Cellulose
Lim, Woo-Sub,Choi, Jae-Wook,Iwata, Yusaku,Koseki, Hiroshi Elsevier 2009 Journal of loss prevention in the process industri Vol.22 No.2
<P><B>Abstract</B></P><P>This study was designed to investigate the thermal characteristics of Hydroxypropyl Methyl Cellulose (HPMC). Because HPMC is used in various industries extensively, it is very important to clarify the thermal characteristics in terms of its potential hazards and the spontaneous.</P><P>In this study, we performed thermal analysis with the TG–DTA and Spontaneous Ignition Tester (SIT). Based on the data of the SIT, we know that the critical spontaneous ignition temperature and the apparent activation energy of HPMC were about 185°C and 104.54kJ/mol respectively. However, when the amount of sample is larger to a certain degree, ignition can occur below this temperature. At a thickness of 1m sample of infinity flat was calculated to have a critical temperature value of approximately 180°C by Frank-Kamenetskii's method. Upon analyzing thermal behavior using the TG–DTA, we found that the pyrolysis transpired at 200°C, below the rate of temperature of 1K/min, which is slightly lower than that of common cellulose. Regarding gas analysis, carbon monoxide (CO) was emitted at the start of the reaction.</P>
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
