Materials Literature
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Mit der verschärften magnetischen Halbkreismethode hohen Auflösungsvermögens wurden die Energieverluste von 2 bis 8 ek Volt-Elektronen nach dem Durchgang durch sehr dünne Folien (100—500 ÅE Dicke) von Kollodium, Al2O3, Be, Al und Ag untersucht. Es ergab sich: 1 In den Geschwindigkeitsspektren fanden sich für jede Foli…
The first page of this article is displayed as the abstract.
Abstract Die Lage des Maximums der ersten (im Sichtbaren liegenden) Absorptionsbande von symmetrischen Cyaninfarbstoffen wird ermittelt unter Zugrundelegung eines Modells der Farbstoffmolekel, welches analog ist zu dem insbesondere von Sommerfeld als Modell für das Metall verwendeten Bild des freien Elektronengases. D…
D. M. Newitt and K. E. Weale, J. Chem. Soc., 1948, 1541 DOI: 10.1039/JR9480001541
P. S. H. Henry, Discuss. Faraday Soc., 1948, 3, 243 DOI: 10.1039/DF9480300243
Quand le champ H croît, l'aimantation J d'un ferromagnétique cubique polycristallin tend vers la saturation Js selon la loi d'approche [FORMULE] et une théorie actuellement admise montre que b est égal à [FORMULE] où K est la constante d'anisotropie. L'auteur montre que cette théorie n'est pas correcte car elle a été…
The first page of this article is displayed as the abstract.
D. M. C. MacEwan, Trans. Faraday Soc., 1948, 44, 349 DOI: 10.1039/TF9484400349
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectrolytic Resistance in Evaluating Protective Merit of Coatings on MetalsR. C. Bacon, J. J. Smith, and F. M. RuggCite this: Ind. Eng. Chem. 1948, 40, 1, 161–167Publication Date (Print):January 1, 1948Publication History Published online1 May 2002Published inissue 1 Januar…
The basis is presented for a more accurate interpretation of the results of physical type tests to measure the thermal aging of insulation together with a more accurate method of applying the results of such tests to predicting insulation deterioration in practice. Since the observed physical changes during thermal ag…
The theory of ferromagnetic resonance absorption previously developed is extended to include the effect of the shape of the specimen and, in the case of a single crystal, the effect of crystal orientation. The resonance condition may be written ${\ensuremath{\omega}}_{0}=\ensuremath{\gamma}{H}_{\mathrm{eff}}$, where $…
Abstract The fundamental process of vulcanization consists in the combination of rubber with a vulcanizing agent : sulfur, sulfur monochloride, etc . The kinetics of this process may be expressed by monotonous curves. These may be interpreted either as the result of the heterogeneous character of the reaction or as th…
A survey of the literature and the practice of detergency as applied to textiles has indicated that the manufacture of successful detergents has progressed further than has the fundamental science of detergency. Many of the basic factors in soiling of textile fibers and fabrics, and in cleaning of the soiled materials…
Abstract 1. Es werden die Zustandsdiagramme der Systeme Magnesium‐Calcium, Magnesium‐Strontium und Magnesium‐Barium aufgenommen. 2. Während Magnesium mit Calcium nur eine Verbindung Mg 2 Ca bildet, gibt es in den beiden anderen Systemen je zwei kongruent schmelzende Phasen: Mg 9 X und Mg 2 X sowie eine inkongruent sch…
A bstract Since glasses, which are high in silica or boric oxide content, have high absorption in the region of 2.7 to 3.0 microns, a study of the transmission characteristics of several simple glasses has been made. Measurements of a variety of commercially available samples (5 mm. thick) of fused silica showed absor…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSorption of Nitrogen and Water Vapor on Textile FibersJohn W. Rowen and R. L. BlaineCite this: Ind. Eng. Chem. 1947, 39, 12, 1659–1663Publication Date (Print):December 1, 1947Publication History Published online1 May 2002Published inissue 1 December 1947https://pubs.acs.org/…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Metachromatic Reaction of HexametaphosphateJ. M. WiameCite this: J. Am. Chem. Soc. 1947, 69, 12, 3146–3147Publication Date (Print):December 1, 1947Publication History Published online1 May 2002Published inissue 1 December 1947https://pubs.acs.org/doi/10.1021/ja01204a508h…
The generation of electrical energy from thermal energy by thermoelectric means cannot be accomplished with thermocouples made of the available alloys generally used for temperature measurements, their efficiency being less than one percent. A review of the theoretical efficiency calculations shows that higher efficie…
This Subcommittee was organized in November 1941. It first selected the areas in which the terminology of sediments was confused and needed clarification, and drew up preliminary definitions to serve as a basis of discussion. These definitions were then distributed as widely as possible among the persons in this count…
Progress of Theoretical Physics Vol. 2 No. 4 (1947) pp. 217-217 Errata to the Above Letter D. Ito, Z. Koba and S. Tomonaga Progress of Theoretical Physics Vol. 3 No. 3 (1948) pp. 290-303 On Radiation Reactions in Collision Processes. I Zirô Koba and Sin-itirô Tomonaga Progress of Theoretical Physics Vol. 3 No. 3 (1948…