巻号一覧
後続誌
10 巻, 7 号
選択された号の論文の7件中1～7を表示しています
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丸山 英夫, 阿部 史朗, 渡辺 博信1968 年 10 巻 7 号 p. 374-377
発行日: 1968/07/30
公開日: 2010/04/19
ジャーナル フリーHighly radioactive fallout particles, originaing from the 3rd Chinese nuclear test explosion, were found on the roof of a building of the National lnstitute of Radiological Sciences, Chiba, Japan, and their properties were measured. The density of the particles distributed on the ground was about 4 particles/mm2. The gross β-activity due to the fallout particles 2 days after the explosion was about 5, 600dps/mm2. The decay curves were measured on the particles collected, which revealed some differences between individual particles. Particle size distribution ranged from 3.5μm to 23μm and seemed to have small cut properties.
The particle activity was well proportional to the volume. Their specific activity was estimated at 0.44dps/μm3 10 days after the explosion.
The γ-ray spectra of the particles isolated from the filter of an air liner and of the residue of the filter were measured. Above results were compared with those from the 1st and the 2nd Chinese explosions.抄録全体を表示PDF形式でダウンロード (233K) -
触媒反応速度式の解析村田 寿典, 遊佐 英夫1968 年 10 巻 7 号 p. 377-383
発行日: 1968/07/30
公開日: 2010/04/19
ジャーナル フリーAn investigation of the catalytic reombination of hydrogen and oxygen is carried out in order to obtain reaction rate data for the preliminary design and feasibility studies of the recombiners to be used in the off-gas system of boiling water reactor.
A catalytic reaction rate equation on the basis of the idea of a non-dimensional "Diffusion Control Factor η" defined as the ratio of mass transfer coefficient kf gas film kf to apparent reaction rate constant was studied in this report. The "η" factor of metallized alumina spheres or pellets is expressed as a function of kf, "effective chemical reaction rate constant at outer surface of catalyst, K" and "effective reaction rate constant coming from diffusion in catalyst pores and chemicl reaction at inner surface of catalyst,
The reaction rate equation was confirmed experimentally under the condition of the constant temperature over the catalyst bed, and "K" constants of the alumina supported palladium catalysts were determined.抄録全体を表示PDF形式でダウンロード (13048K) -
久保田 正, 小峯 勲, 高橋 修一郎1968 年 10 巻 7 号 p. 384-389
発行日: 1968/07/30
公開日: 2010/04/19
ジャーナル フリーDispersions of Dy2O3 in W, ZrO2 (CaO stabilized) and UO2 were subjected to steep temperature gradient at near melting temperature of the respective matrixes, to determine the compatibility of Dy2O3 with W, ZrO2 and UO2.
The main results obtained are as follows:
(1) Dy2O3 is compatible with W up to 2, 300°C. Physically however the Dy2O3 was found to migrate and agglomerate in the central region, and become one sintered block.
(2) In the case of Dy2O3-ZrO2, the Dy2O3 particles were no longer visible in the central region where the temperature was above 1, 900°C: they had formed a solid solution with ZrO2.
(3) X-ray diffraction analysis applied ro the massive grain region of Dy2O3UO2, where temperature was above 1, 900°C, revealed that Dy2O3 had formed a solid solution with UO2.抄録全体を表示PDF形式でダウンロード (12315K) -
原子力MHD発電研究専門委員会の報告青木 昌治, 一丸 節夫, 一宮 虎雄, 井本 正介, 小沢 保知, 阪口 忠雄, 佐多 敏之, 佐藤 浩, 佐野 川好母, 正田 行男, ...1968 年 10 巻 7 号 p. 390-396
発行日: 1968/07/30
公開日: 2010/04/19
ジャーナル フリーA summary review is presented on the activities of the "Special Committee on Nuclear MHD Power Generation" during the two years from its establishment in October 1965 to September 1967. The subjects include MHD plasma diagnostics, problems in generator channels, generators utilizing nonequilibrium ionization, experiments with shock tubes, materials for the closed cycle technology, liquid metal MHD generators, and the prospects for nuclear-powered MHD power plants.
It is emphasized that further studies are called for covering the details of these subjects, especially for a better understanding of the basic phenomena of nonequilibrium MHD plasmas and related technology, in order to further promote progress in the activities in this field in Japan.抄録全体を表示PDF形式でダウンロード (531K) -
須田 信英1968 年 10 巻 7 号 p. 397-400
発行日: 1968/07/30
公開日: 2010/04/19
ジャーナル フリーAn explanation is given of the difference between the three methods of estimation identification, parameter- and state. The expected role of state estimation in reactor control engineering is described. The methods of estimation are briefly discussed, and some examples are presented concerning their application to the reactor problems.抄録全体を表示PDF形式でダウンロード (2624K) -
江藤 秀雄, 井上 武一郎, 鈴木間 左支, 佐伯 誠道, 福田 整司, 伊藤 直次1968 年 10 巻 7 号 p. 401-410
発行日: 1968/07/30
公開日: 2010/04/19
ジャーナル フリーPDF形式でダウンロード (9642K) -
高柳 誠一1968 年 10 巻 7 号 p. 411-412
発行日: 1968/07/30
公開日: 2010/04/19
ジャーナル フリーPDF形式でダウンロード (6278K)
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