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Commonwealth Scientific and Industrial Research Organization, Australia1 1 The work described in this paper was carried out as part of the research program of the Division of Soils, of this Organization, at the Plant and Soils Laboratory, George Street, Brisbane, Queensland. Acknowledgment is made to C. S. Piper, chem…
The relation between self-diffusion coefficient and viscosity is examined in terms of the early hydrodynamic theory and Eyring's kinetic theory. They differ by a factor of about 6. A detailed consideration of the kinetic theory shows that this factor should have been included in Eyring's derivation of viscosity if a p…
During normal spontaneous inspiration pulmonary blood flow increases in spite of an increase in resistance to flow in the pulmonary bed. The enhancement of pulmonary flow is caused by an augmentation of venous return due to thoracic aspiration. The right heart acts as a moderator for the pulmonary flow by temporarily…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIntroduction to Nuclear Engineering.W. R. KanneCite this: J. Am. Chem. Soc. 1955, 77, 5, 1394Publication Date (Print):March 1, 1955Publication History Published online1 May 2002Published inissue 1 March 1955https://pubs.acs.org/doi/10.1021/ja01610a108https://doi.org/10.1021/…
The system BaO‐TiO 2 was investigated using quenching, strip‐furnace, and thermal techniques. Five compounds were found to exist in the system: Ba 2 TiO 4 , BaTiO 3 , BaTi 2 O 5 , BaTi 3 O 7 , and BaTi 4 O 9 . Of these, only barium metatitanate (BaTiO 3 ) melts congruently (at 1618°C.). The dititanate melts incongruen…
Los autores presntan los resultados do sus estudios sobro las dimensiones apropiadas que se han de dar a los hornos rotatorios, en relación al transporte del material y a las condiciones de transmisión del calor; dichos resultados prueban la existencia de una regularidad perfecta. Estudian, especielmente, la influenci…
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El propósito fundamental de asta investigación ha sido el determinar cómo influyen sobre el color de los productos cocidos los constituyentes de la arcilla, y, si es posible, determinar la naturaleza de loa compuestos y soluciones sólidas que dan lugar a las diversas coloraciones. También se realizaron ensayos con el…
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ADVERTISEMENT RETURN TO ISSUEPREVArticleDielectric Materials and Applications.Charles P. SmythCite this: J. Am. Chem. Soc. 1955, 77, 6, 1714Publication Date (Print):March 1, 1955Publication History Published online1 May 2002Published inissue 1 March 1955https://pubs.acs.org/doi/10.1021/ja01611a117https://doi.org/10.10…
The dielectric and thermal properties and lattice dimensions of lead·strontium titanate were investigated, the solid solution being realized in the whole range of molar percentage. It was found that, lead·strontium titanate is also ferroelectric as lead·barium titanate and barium·strontium titanate. As the content of…
The techniques and results of a previous paper are applied to the calculation of the second Born approximation of the one-photon radiative corrections to the scattering of electrons by nuclei. Nonrelativistic and high-energy approximations are calculated explicitly for pure Coulomb scattering. Modifications due to the…
Abstract Man hat eine Anzahl von Daten zur Verfügung, die sowohl auf Laboratoriumsmessungen als auch auf praktischer Erfahrung beruhen und die eine grobe Materialauswahl für eine mit Schwefelsäure arbeitende Apparatur ermöglichen. Was die Laboratoriumsmessungen anbetrifft, so wurden diese früher meistens mit Schwefels…
Abstract While investigating the absorption of carbon dioxide in sodium carbonate–bicarbonate solutions, apparently erratic variations of absorption coefficients were observed in earlier work. In an attempt to find an explanation for these variations, density, relative viscosity, pH and relative surface tension were d…
Ceramic coatings were prepared from materials having low absorption coefficients for thermal neutrons. They were specifically designed for application to typical high‐temperature alloy parts for use in nuclear reactors. Best results were obtained with boron‐free coatings of the frit‐refractory type, in which a high‐ba…
The reflectivity of an ideal metal is calculated for infra-red light by a quantum-mechanical method. It is assumed that the conduction electrons in the metal absorb light by a photoelectric process which takes place near the surface, that these electrons behave as if they are free and that the light within the metal d…
Abstract The structural formulas were determined of very pure specimens of montmorillonite, bei-dellite, saponite, nontronite, hectorite, wolchonskoite, vermiculite, and batavite. The lattice perfection of these minerals and the nature and variation of their crystalline swelling depend significantly on the surface den…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIllumination of cis- and trans-Stilbenes in Dilute SolutionsRobert E. BucklesCite this: J. Am. Chem. Soc. 1955, 77, 4, 1040–1041Publication Date (Print):February 1, 1955Publication History Published online1 May 2002Published inissue 1 February 1955https://pubs.acs.org/doi/10…
Abstract The ethylenediamine‐cellulose complex, previously described by Trogus and Hess, has been reinvestigated with regard to its stability toward a series of solvents and to the differences in the fine structure of the cellulose remaining after its decomposition. It is shown that nonpolar solvents which do not cont…
The concentrations of imperfections in silver halides grown from the melt were investigated by comparing the measured densities with the ideal densities computed from the lattice dimensions. The density defect of the most perfect specimen of silver bromide was $\frac{\ensuremath{\Delta}\ensuremath{\rho}}{\ensuremath{\…