巻号一覧
22 巻, 2 号
選択された号の論文の6件中1～6を表示しています
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孫野 長治, 菊地 勝弘1960 年 22 巻 2 号 p. 41-47
発行日: 1960年
公開日: 2009/09/04
ジャーナル フリーThe measurement of electric charge on individual cloud particles of diameter larger than 15μw as carried out at the top of Mt. Teine in winter through the 1957 and 1959 seasons. The result obtained is described. The particles are classified into supercooled cloud droplets, frozen cloud droplets and ice crystal particles.
Only a small part of the number of supercooled cloud droplets was electrified, and the number of the droplets charged negatively was much more than that charged positively. About a half of frozen droplets was electrified, and the number of the droplets carrying negative charge was larger than that of those charged positively. The supercooled or frozen cloud droplets which were electrified were considerably larger than that of not electrified cloud droplets. Most of ice crystal particles was electrified. The magnitude of charge on the cloud droplets was roughly proportional to the mass of the droplets. Generally, the cloud droplets electrified intensely were observed only when clouds were active electrically and unstable colloidally.
Considering those results, it was proposed that the cloud droplets would be electrified by capturing the ions produced by point discharge during their growing process, therefore, the sign of charge on the cloud droplets is determined by the sign of electric field under the cloud base.抄録全体を表示PDF形式でダウンロード (7027K) -
スキーワックスの諸現象について新保 正樹1960 年 22 巻 2 号 p. 48-54
発行日: 1960年
公開日: 2009/09/04
ジャーナル フリーIn the case of friction of paraffin and skiing waxes (climbing wax and downhill wax), whose thicknesses were kept constant, μS was found to depend the penetration, whereas μK remained constant in general. (Fig. 1., 2, 3)
When the penetration was kept constant and the thickness was varied, μS increased with increasing thickness while μK remained constant. When, kowever, the penetration was made larger or the air temperature was made lower, μK proved to increase slightly with thickness. (Fig. 5, 6, 7, 8, 9, 10)
From early days, the behavior of these skiing waxes has been considered to be mysterious, but the above-mentioned data show that climbing ability coincides with the value of μS which varies with their penetration, film thickness or other factos, and that sliding ability depends upon μK on snow.
Thus we can obtain a wax with large μS by adjustment of these factors maintaining the value of μK constant. The ability of these paraffin and skiing waxes can be explained from their frictionthickness diagram. (Fig. 7, 8, 11, 13, 12, 14)抄録全体を表示PDF形式でダウンロード (884K) -
第3部気温との相関福田 喜代志1960 年 22 巻 2 号 p. 55-57
発行日: 1960年
公開日: 2009/09/04
ジャーナル フリーThe correlation coefficient between the highest accumulated snow-depth (ψ) and the temperature in winter is computed for various distircts. From the values of the correlation coefficient the tendency of heavy snow in the cold winter and light snow in the warm winter is seen in the heavy snow districts. While in Hokkaido and light snow districts this tendency is not seen. At the same time other interesting facts are also obtained.抄録全体を表示PDF形式でダウンロード (459K) -
北海道における場合荒川 秀俊1960 年 22 巻 2 号 p. 58-59
発行日: 1960年
公開日: 2009/09/04
ジャーナル フリーPDF形式でダウンロード (200K) -
Polar Recond Vol.9 No.62, 63から中島 博1960 年 22 巻 2 号 p. 60-61
発行日: 1960年
公開日: 2009/09/04
ジャーナル フリーPDF形式でダウンロード (464K) -
福井 篤1960 年 22 巻 2 号 p. 62-63
発行日: 1960年
公開日: 2009/09/04
ジャーナル フリーPDF形式でダウンロード (234K)
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