巻号一覧
4 巻, 2 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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James L. COOK1967 年 4 巻 2 号 p. 47-50
発行日: 1967/01/25
公開日: 2008/04/18
ジャーナル フリーAn expression for the Doppler-broadened resonance profile is derived, without the aid of the conventional approximation scheme. The area under this profile is examined and found to be weakly dependent upon temperature.抄録全体を表示PDF形式でダウンロード (223K) -
ExperimentKazuo MONTA1967 年 4 巻 2 号 p. 51-62
発行日: 1967/01/25
公開日: 2008/04/18
ジャーナル フリーTime optimal control has been applied to a digital computer control system governing a research reactor (Toshiba Training Reactor). A program was developed for the control computer, with which actual experiments were performed. The results demonstrated the applicability of the various modern control theories for designing such systems.
Discussion is first presented on some considerations required in realizing the results envisaged on the basis of a simplified model of the system. In view of the use of reactivity as variable representing the state of reactor system, a method has been developed that permits simple and accurate on-line calculation of the reactivity from changes in reactor power. The control is determined in the whole phase plane (neutron density vs. reactivity), and is programmed with the use of appropriate simplifi-cations and approximations.
Experiments were first performed on a simulated system of the reactor and then on the actual reactor system. The results described cover experiments on steady state performance as well as transient performance with the reactor power varied in ranges extending to 2 decades.抄録全体を表示PDF形式でダウンロード (3669K) -
Analytical Procedure for Reverse Frontal ProcessJunichi SHIMOKAWA, Fumiaki KOBAYASHI1967 年 4 巻 2 号 p. 63-75
発行日: 1967/01/25
公開日: 2008/04/18
ジャーナル フリーAn analytical procedure for the reverse frontal process has been developed for the case in which a finite amount of one chemical substance is equilibrated isotopically step by step with the same amount of another substance, and the isotopic equilibrium separation factor remains constant throughout the exchange. The isotope effect between two phases was strictly taken into consideration in the mathematical development.
The conclusions obtained are as follows:
(1) Equations for the isotope abundance ratios of materials at the relaxing position and at the closing part of the effluent curve were obtained in simple form.
(2) An approximate estimate for the number of units and for the separation factor were obtained by drawing the effluent curve from experiment.
(3) A completely separated sample could not be obtained so long as the number of units was finite.抄録全体を表示PDF形式でダウンロード (791K) -
Nobuo MITSUISHI, Tsutomu FUKUMOTO1967 年 4 巻 2 号 p. 74-83
発行日: 1967/01/25
公開日: 2008/04/18
ジャーナル フリーThe authors have made a study on entrainment, in which the probability of mist passing through a plate is considered. A mathematical analysis was performed for large diameter column, that is, one in which consideration is given to backmixing in a plate column.抄録全体を表示PDF形式でダウンロード (570K) -
Masami SHIMIZU1967 年 4 巻 2 号 p. 84-97
発行日: 1967/01/25
公開日: 2008/04/18
ジャーナル フリーThe heat siphon has long been in general use for the purpose of enriching the isotopes present in a reservoir into a thermal diffusion column. K. Clusius and H.H. Buhler developed an alternative method, the gas oscillator, which they utilized as a gas connecting method.
We analyzed both methods mathematically, resulting in the conclusion that the flow rate ¦σR¦ (g/sec) of the heat siphon and of the gas oscillator should have a value ranging from 3H to 5H, and that the period of the gas oscillator 2T(sec) has little influence on the enrichment process, which permits us to choose a value convenient for operation.抄録全体を表示PDF形式でダウンロード (645K) -
Yoshihiko KANEMORI1967 年 4 巻 2 号 p. 98-99
発行日: 1967/01/25
公開日: 2008/04/18
ジャーナル フリーPDF形式でダウンロード (146K) -
Akira FURUHASHI, Sigeru IZUMI1967 年 4 巻 2 号 p. 99-101
発行日: 1967/01/25
公開日: 2008/04/18
ジャーナル フリーPDF形式でダウンロード (182K)
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