巻号一覧
1965 巻 (1965)
- 43 号 p. 2-
- 42 号 p. 3-
- 41 号 p. 3-
1965 巻, 43 号
選択された号の論文の7件中1～7を表示しています
- |<
- <
- 1
- >
- >|
-
石川 博章, 一木 利信1965 年 1965 巻 43 号 p. 2-8
発行日: 1965/11/10
公開日: 2010/06/28
ジャーナル フリー(1) 直流機の過渡時の整流状態を無火花帯直視装置を用いて観測を行なった。
(2) 補極磁路に発生するうず電流の時定数は, 鉄心を1つの二次巻線として考えた場合には, Rudenbergの計算式で求められる結果よりいちじるしく小さくなる。
(3) 過渡時の整流状態が定常状態で測定される無火花帯をはずれるとだいたいブラシより火花が発生するものと考えられる。
(4) しかし, ブラシ火花の発生および消滅には遅れ現象があり, 過渡時の火花の発生範囲と無火花帯の限界線とは必ずしも一致しない。
(5) 過渡整流を改善するために磁路鉄心を積層することは非常に有効である。抄録全体を表示PDF形式でダウンロード (9961K) -
1965 年 1965 巻 43 号 p. 8
発行日: 1965年
公開日: 2011/03/01
ジャーナル フリーPDF形式でダウンロード (143K) -
矢島 聖使, 平井 敏雄1965 年 1965 巻 43 号 p. 9-12
発行日: 1965/11/10
公開日: 2011/03/01
ジャーナル フリーThe Research Institute For Iron, Steel and Other Metals. Tohoku University. Effects of the roughness of graphite substrate on the properties of pyrolytic graphite have been examined. Pyrolytic graphite is obtained by pyrolysis of commercial propane gas at the deposition temperature of 2025°C, the pressure of 10mm Hg and the flow rate of 640cc/min by direct heat method. The three kinds of roughness of the substrates are obtained using of abrassive papers (05, 280). The effects are not remarkable as compared with that of the deposition temperature and gas pressure, but can not be ignored. In the case of the smooth surface (abrassive paper 05), the surface of the deposit is smooth and the microstructure is fine, in which the crack does not appear. Furthermore, the formation rate is large, the ordering is good and the preferred orientation is remarkable. But in the case of the rough surface, the above mentioned phenomena tend to appear in the reverse side. Especially, the electrical resistivity of c-axis in the smooth case is about 10per cent higher than that of the rough surface. However, there are inconsiderable difference in the lattice constant and density between the smooth and rough surfaces.抄録全体を表示PDF形式でダウンロード (1174K) -
石原 裕1965 年 1965 巻 43 号 p. 13-17
発行日: 1965/11/10
公開日: 2010/06/28
ジャーナル フリーIt is well known that the intrinsic photoconduction in an anthracene crystal changes exponentially with temperature. In order to study the generation mechanism of free carriers in an anthracene crystal, a pulsed photoconduction measurement has been performed. The thermal activation energy for the intrinsic photoconduction has been found to depend on the excitation wavelength. The activation energy is constant for the wavelength range shorter than the fundamental absorption edge, however, for the longer wavelength region, it increases linearly as the wavelength increases. In the fundamental absorption region, a constant value of 0.14eV is obtained as the activation energy both for holes and electrons. The activation energy is independent of the crystal orientation. The temperature and crystal orientation dependences of the drift mobility are discussed. Excepting the case of electron in the direction perpendicular to (ab)-plane, the drift mobilities decrease as the temperature rises. A model of energy levels is proposed for the charge carrier generation.抄録全体を表示PDF形式でダウンロード (666K) -
山田 公1965 年 1965 巻 43 号 p. 18-23
発行日: 1965/11/10
公開日: 2010/06/28
ジャーナル フリーThe reactions between carbon and metals such as thermal black (T.B.) and silicon, T.B. and iron etc. were investigated by means of X-ray diffraction and chemical analysis.
The (002) diffraction profile of the sample had two peaks, one of which was attributable to heat-treated T.B. and the other to graphite. This fact constitutes that the sample is a mixture of heat-treated T.B. and graphite crystals. So, the quantity of formed graphite crystals was estimated by using as a standard a heat-treated T.B. and a natural graphite mixture of a known ratio.
From the quantitative relationship between formed graphite and residual matter it was considered that silicon forms graphite crystals by formation and decompostion of silicon carbide and iron segregates graphite crystals from iron-carbon melt. The curve of quantity of formed graphite vs. heating time a unique feature according to the kind of metal, and in this connection, it was considered that metals can be divided into two types, that is silicon-type and iron-type. Also, it was found that no marked increase in the quantity of formed graphite can be expected as a result of repeated reaction between carbon and metal.抄録全体を表示PDF形式でダウンロード (714K) -
松村 芳美1965 年 1965 巻 43 号 p. 24-31
発行日: 1965/11/10
公開日: 2010/06/28
ジャーナル フリーThis paper is concerned with the theories and the experimental results on the breakdown of dynamic adsorption of gas streams through active carbon column.
Kinetic theory of dynamic gas adsorption has been developed as the concept of adsorption wave by many investigators, and it interpretes the observed data in the wide range of adsorption conditions, except both of the effluent gas concentration at the initial range of breakdown and of the relation between the influent gas concentration and the breakdown time. Here, the theory was discussed in comparison of the observed results.
Also, the reviews are given on some semiempirical methods, like Mecklenberg's concept, MTZ approach and the pulse test methods.
The relation between the dynamic and static adsorption was considered at last, which lead to the new and convenient method to obtain the general relation between the influent gas concentration and the breakdown time.抄録全体を表示PDF形式でダウンロード (956K) -
大谷 杉郎1965 年 1965 巻 43 号 p. 32-35
発行日: 1965/11/10
公開日: 2010/06/28
ジャーナル フリーPDF形式でダウンロード (442K)
- |<
- <
- 1
- >
- >|