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Splashes from underwater explosions

H. Kolsky、James P. Lewis、M. T. Sampson 等 5 位作者1949-04-07Proceedings of the Royal Society of London A Mathematical and Physical Sciences

Abstract The splashes from the underwater explosions of 1 and 10 lb. charges of P.E. no. 2 and Nobel’s Explosive ‘808’ at various depths have been photographed with cine-cameras. The experiments were carried out in a sheltered pond which enabled the surface phenomena to be studied in greater detail than has been done…

Combustion and Detonation ProcessesUltrasound and Cavitation Phenomena

Neutron Diffraction Studies of Order-Disorder in Alloys

C. G. Shull、Sidney Siegel1949-04-01Physical Review

Neutron diffraction techniques have been used to study order in the substitutional solid solutions FeCo, ${\mathrm{Ni}}_{3}$Mn, and ${\mathrm{Cu}}_{3}$Au. Superlattice effects have been found in the first two examples, which are difficult to study by x-rays.

Magnetic properties of thin filmsMagnetic Properties and ApplicationsMicrostructure and Mechanical Properties of Steels

CRYSTALLOGRAPHIC INVERSIONS OF THE ALUMINUM ORTHOPHOSPHATE POLYMORPHS AND THEIR RELATION TO THOSE OF SILICA*

W. Beck1949-04-01Journal of the American Ceramic Society

A bstract The temperature‐stability relationships of the AlPO, polyrnorphs have been studied by X ray, thermal analysis, and thermal expansion. The system parallels that of silica very closely. Following is a diagrammatic representation of the findings for AlPO 4 : Conversions from one form to another are shown to be…

Zeolite Catalysis and SynthesisAdvanced ceramic materials synthesisGlass properties and applications

Degree of lateral order in various rayons as deduced from x‐ray measurements

P. H. Hermans1949-04-01Journal of Polymer Science

Abstract X‐ray measurements on 16 different specimens of regenerated cellulose reveals that there exists a pronounced negative correlation between the integrated intensity of the 101 interference and its halfwidth. The 101 plane is a preferred cleavage plane and represents the lamellar plane of the ribbon‐shaped cryst…

Lignin and Wood ChemistryBiofuel production and bioconversionAdvanced Cellulose Research Studies

The X-ray measurement of the amorphous content of polythene samples

J. L. Matthews、H. S. Peiser、R. B. Richards1949-04-01Acta Crystallographica

A method is described for the determination of the amorphous content of polythene samples, based on a microphotometric comparison of the intensities of the amorphous band and the two strongest crystalline lines on X-ray powder photographs obtained from the samples in sheet form. Corrections for two types of orientatio…

Thermal and Kinetic AnalysisPolymer Nanocomposites and PropertiesCultural Heritage Materials Analysis

Mechanism of Fat Splitting

Lucio Lascaray1949-04-01Industrial & Engineering Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMechanism of Fat SplittingLucio LascarayCite this: Ind. Eng. Chem. 1949, 41, 4, 786–790Publication Date (Print):April 1, 1949Publication History Published online1 May 2002Published inissue 1 April 1949https://doi.org/10.1021/ie50472a025RIGHTS & PERMISSIONSArticle Views539Alt…

Electrospun Nanofibers in Biomedical Applications

Photosensitive Glass

S. D. Stookey1949-04-01Industrial & Engineering Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotosensitive GlassS. D. StookeyCite this: Ind. Eng. Chem. 1949, 41, 4, 856–861Publication Date (Print):April 1, 1949Publication History Published online1 May 2002Published inissue 1 April 1949https://pubs.acs.org/doi/10.1021/ie50472a042https://doi.org/10.1021/ie50472a042re…

Glass properties and applications

The Kinetics of the Decomposition of Potassium Persulfate in Aqueous Solutions of Methanol

Paul D. Bartlett、John D. Cotman1949-04-01Journal of the American Chemical Society

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Kinetics of the Decomposition of Potassium Persulfate in Aqueous Solutions of MethanolPaul D. Bartlett and John D. CotmanCite this: J. Am. Chem. Soc. 1949, 71, 4, 1419–1422Publication Date (Print):April 1, 1949Publication History Published online1 May 2002Published iniss…

Crystallization and Solubility StudiesThermal and Kinetic AnalysisChemical and Physical Properties in Aqueous Solutions

X‐ray studies on the crystallinity of cellulose

P. H. Hermans、A. Weidinger1949-04-01Journal of Polymer Science

Abstract The method for the evaluation of the percentage crystallinity in cellulose preparations from x‐ray intensity measurements, previously described in detail (J. Appl. Phys., in press) is reviewed briefly and new material presented consisting of crystallinity percentages between 8% and 70%. Cotton, flax, and rami…

Advanced Cellulose Research Studies

The accuracy of electron-density maps in X-ray analysis with special reference to dibenzyl

D. W. J. Cruickshank1949-04-01Acta Crystallographica

Methods of correcting the systematic errors in electron-density maps due to using finite series of structure factors are discussed. Random errors in the maps are caused by experimental and computational rounding-off errors and by errors in the correction for finite series. Expressions are derived for the standard devi…

Electron and X-Ray Spectroscopy TechniquesX-ray Spectroscopy and Fluorescence AnalysisX-ray Diffraction in Crystallography