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Volume 56, Issue 660
Displaying 1-4 of 4 articles from this issue
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Hidesaburo AOYAMA, Takeo MATUZAWA1940 Volume 56 Issue 660 Pages 165-175
Published: April 22, 1940
Released on J-STAGE: July 13, 2011
JOURNAL FREE ACCESSAs we have already explained the general solution on the characteristic featuresof seismic method of prospecting, under the most general geological construction and some actual, practical results which we have carried out in the oil field at Akita and Niigata, now in this article we described the recent result by this method of prospecting carried into effort in the promising oil field at Kazi, Etigo, in summer 1938.View full abstractDownload PDF (2028K) -
Riki HORIUCHI1940 Volume 56 Issue 660 Pages 176-184
Published: April 22, 1940
Released on J-STAGE: July 13, 2011
JOURNAL FREE ACCESSDownload PDF (1242K) -
Rintaro TAKAHASI1940 Volume 56 Issue 660 Pages 185-188
Published: April 22, 1940
Released on J-STAGE: July 13, 2011
JOURNAL FREE ACCESSThis paper records experiments undertaken to extend the accuracy and promptitudeof quantitative analysis attained by X-ray spectrography of iron alloys.
For this purpose, the author utilized the logarithmic sector as the same with that in the ordinary spectrographic method.
Then the relation between the difference of the length of two spectral lines on the photographic plate and the logarithmic value corresponding to ratio of the weights of two elements was graphically expressed.
By the graph of this sort, the X-ray spectral method can be easily practised and the computation for the result rapidly can be done.View full abstractDownload PDF (1331K) -
1940 Volume 56 Issue 660 Pages 189-198
Published: April 22, 1940
Released on J-STAGE: July 13, 2011
JOURNAL FREE ACCESSDownload PDF (2277K)
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