著者
小林 健介 堀井 英雄 石神 努 千葉 猛美
出版者
一般社団法人 日本原子力学会
雑誌
日本原子力学会誌 (ISSN:00047120)
巻号頁・発行日
vol.27, no.1, pp.56-65, 1985-01-30 (Released:2009-04-21)
参考文献数
10
被引用文献数
1 1

A sensitivity analysis of thermal hydraulic response in containment during a 'station blackout' (the loss of all AC power) accident at Browns Ferry unit one plant was performed with the computer code MARCH 1.0. In the analysis, the plant station batteries were assumed to be available for 4h after the initiation of the accident. The thermal hydraulic response in the containment was calculated by varying several input data for MARCH 1.0 independently and the deviation among calculated results were investigated.The sensitivity analysis showed that (a) the containment would fail due to the overtemperature without any operator actions for plant recovery, which would be strongly dependent on the model of the debris-concrete interaction and the input parameters for specifying the containment failure modes in MARCH 1.0, (b) a core melting temperature and an amount of water left in a primary system at the end of the meltdown were identified as important parameters which influenced the time of the containment failure, and (c) experimental works regarding the parameters mentioned above could be recommended.
著者
松永 武 小林 健介
出版者
日本保健物理学会
雑誌
保健物理 (ISSN:03676110)
巻号頁・発行日
vol.36, no.1, pp.31-44, 2001 (Released:2010-02-25)
参考文献数
56

The prophylactic use of stable iodine is one of the protective measures during a nuclear emergency. In order to know the resultant radiation dose to the thyroid gland and the effectiveness of iodine prophylaxis in the case of Japanese, a sensitivity analysis was performed for related physiological parameters for Japanese. As a result, the variances in the deposition efficiency of radioactive iodine aerosol in the respiratory tract due to changes in the respiratory parameters were found rather small between the standard Caucasian and Japanese. The changes due to the radioactive iodine aerosol size were more significant, suggesting the importance of understanding the physico-chemical status of aerobic radioiodine released in a nuclear emergency. Concerning the metabolic parameters of iodine, the result of the sensitivity analysis based on an iodine metabolic model showed that the most critical parameters are those which describe the transport of stable and radioactive iodine from the blood compartment to the thyroid gland. Accordingly, a confirmation of the transport model and the related parameters for Japanese are essential to clarify the effectiveness of iodine prophylaxis to reduce thyroid gland exposure of Japanese. (This work was performed under the auspices of the Science and Technology Agency of Japan.)
著者
石神 努 小林 健介
出版者
一般社団法人 日本原子力学会
雑誌
日本原子力学会誌 (ISSN:00047120)
巻号頁・発行日
vol.35, no.6, pp.549-560, 1993-06-30 (Released:2010-04-19)
参考文献数
7
被引用文献数
1 1

As a part of the preparation of the database of calculated results on severe accident sequences for emergency preparedness at nuclear power plants, steam generator tube rupture initiated severe accident sequences at a reference two-loop PWR plant have been analyzed using the THALES/ART computer code. Estimation were made of the times of key events such as core uncovery, core melt and reactor vessel melt-through, and an amount of fission products released to the environment. The effects of recovery action on core integrity and the amount of environmental fission products released were studied with regard to the discussion on mitigation of or recovery from the accident by the feed and/or bleed operation in the primary and/or the secondary system. The analysis showed that (1) the ECCS has adequate capability of maintaining core integrity, and (2) the bleed operation in the primary system is effective to suppress the environmental fission products released even if the ECCS did not function.
著者
梅本 通孝 熊谷 良雄 小林 健介 石神 努 渡辺 実 室崎 益輝 大西 一嘉
出版者
地域安全学会
雑誌
地域安全学会論文報告集
巻号頁・発行日
no.7, pp.228-233, 1997-11
被引用文献数
1

The Great Hanshin-Awaji Earthquake Disaster caused an LPG leak incident at a plant in Higashinada ward, Kobe city. Kobe municipal authorities announced evacuation recommendation to 72,000 inhabitants. A questionnaire was conducted to know when, where and how the inhabitants received the information of evacuation recommendation. Results of the questionnaire are as follows : ・In the day the evacuation order was announced, 9.9% of inhabitants in the recommendation area concerned did not receive the information of the recommendation. ・The farther from the plant where the incident happened, the more lately inhabitants received the information of the recommendation. ・Though about 80% of people who received the information of the recommendation become aware of the cause of it, many of them didn't know the further information.
著者
平山 裕子 井元 清隆 鈴木 伸一 内田 敬二 小林 健介 伊達 康一郎 郷田 素彦 初音 俊樹 沖山 信 加藤 真
出版者
特定非営利活動法人 日本心臓血管外科学会
雑誌
日本心臓血管外科学会雑誌 (ISSN:02851474)
巻号頁・発行日
vol.37, no.1, pp.60-64, 2008-01-15 (Released:2009-09-11)
参考文献数
27
被引用文献数
2 2

症例は76歳,女性.両下肢浮腫と呼吸困難を主訴に来院した.経胸壁心エコーで右房内に可動性に富む腫瘤を認め,心不全を伴う右房内腫瘤と診断し手術を施行した.術中の経食道心エコーで右房内腫瘤が下大静脈内へ連続していることを確認したが原発巣は不明なため,心腔内腫瘤摘除にとどめ,残存腫瘍断端はクリップでマーキングした.術直後のCTで子宮筋腫から下大静脈内へ連続する構造物の中にクリップを認め,さらに摘出標本の病理所見からintravenous leiomyomatosis(IVL)と診断した.術後半年のCTでクリップは下大静脈から子宮に連続する静脈内に移動しており,腫瘍は退縮傾向であると考えたが,今後も厳重なる経過観察が必要である.
著者
小林 健介 須藤 幸雄 明石 興彦
出版者
日本脈管学会
雑誌
脈管学 (ISSN:03871126)
巻号頁・発行日
vol.53, no.May, pp.71-74, 2013-05-10 (Released:2013-05-10)
参考文献数
25

要 旨:比較的稀な上肢の静脈性血管瘤(venous aneurysm; VA)を経験したので報告する。症例は71歳女性。40歳頃から右肘部内側の皮静脈が拡張しVAと診断した。VAは体表から透見でき上肢の挙上で虚脱した。静脈エコーや単純CTが診断に有用だった。局所麻酔下に瘤を切除した。炎症所見や内部血栓は認めず,術後の再発もなかった。上肢のVA切除術は低リスクで高い根治性が認められる。