Materials Literature
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Recent experiments by Warburg in collaboration with B. S. Hendricks and Dean Burk of the National Cancer Institute were conducted on the maximum quantum efficiency of photosynthetic processes which have been disputed since the middle 1930's. These latest experiments, unfortunately, are not included in the last chapter…
Es wird uber die Entdeckung eines Magnesiumwasserstoffs, MgH 2 , berichtet, der durch thermische Zersetzung von Magnesium-dialkylen oder durch Umsetzung von Magnesium-dialkylen mit Diboran darstellbar ist und eine weiße, feste, wasserempfindliche, nicht selbstentzundliche, ätherunlösliche, nicht flüchtige und im Vakuu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHeat Capacities at Low Temperatures and Entropies of Zirconium, Zirconium Nitride, and Zirconium TetrachlorideS. S. ToddCite this: J. Am. Chem. Soc. 1950, 72, 7, 2914–2915Publication Date (Print):July 1, 1950Publication History Published online1 May 2002Published inissue 1 J…
fl form corresponds to the simple formula To(CHa)zI ~.The demonstration of our supposition could explain the anomaly observed in the determination of the number of molecules per unit cell.Further investigations are being carried out.
This paper presents a study of the sequence of events by which cracks ``grow.'' A careful investigation was made of the origin, development, and characteristic pattern of level-difference markings left by rapidly moving fractures in a wide variety of materials. Characteristic markings indicating discontinuous propagat…
It is shown that lattice parameters of non-cubic crystals can be accurately determined by linear extrapolation against the function ½(cos e 0/sin 0-b cos ~ 0/0) by selecting lines with suitable indices.Use can be made of the slope of the extrapolation curve of one of the parameters to derive the slope of the extrapola…
One measure of the filamentous algae present in a microscope field is the total length of all the algal filaments. This is usually estimated by superimposing a measuring grid upon the field either by a micrometer eyepiece or a ruled counting cell. The inherent difficulty in such a method is in estimating lengths of se…
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