Cómo evitar la pérdida de humedad en los suelos de cemento
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Materials Literature
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Efecto de la arena impregnada por sustancias húmicas, sobre el endurecimiento del hormigón
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Fabricación de aglomerados de puzolana
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The Reaction between Ferrous Iron and Peroxides. I. Reaction with Hydrogen Peroxide in the Absence of Oxygen
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Reaction between Ferrous Iron and Peroxides. I. Reaction with Hydrogen Peroxide in the Absence of OxygenI. M. Kolthoff and A. I. MedaliaCite this: J. Am. Chem. Soc. 1949, 71, 11, 3777–3783Publication Date (Print):November 19, 1949Publication History Published online1 May…
Design of a capacitor voltage transformer
It is well known that voltage transformers of the usual electromagnetic type constitute a very costly item in high-voltage systems. Considerable savings could be effected by the use of voltage transformers of the capacitor type if their design could be perfected to give sufficient accuracy, i.e. if their ratio errors…
Self-Diffusion in Argon
The self-diffusion coefficient of argon was measured at five different temperatures between −183°C and 53.5°C by observing the diffusion of radioactive A41 into normal argon. The decrease in the observed diffusion coefficient caused by the larger mass of A41 was deduced and found to be 0.6 percent. The experimental va…
Vapor Pressure of Maleic Anhydride - Temperature Range from 35° to 77°
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTVapor Pressure of Maleic Anhydride - Temperature Range from 35° to 77°Leon O. Winstrom and Laurence KulpCite this: Ind. Eng. Chem. 1949, 41, 11, 2584–2586Publication Date (Print):November 1, 1949Publication History Published online1 May 2002Published inissue 1 November 1949h…
The Structure and Growth of Evaporation LiF and NaCl Films on Amorphous Substrates
Thin films of LiF and NaCl were prepared by evaporation in a vacuum and studied by means of electron diffraction, electron microscopy, x-ray diffraction, and optical methods. It was found that on amorphous substrates the films possessed a crystal orientation which varied with the film thickness. For both LiF and NaCl…
THE INTERCHANGE REACTION OF VINYL ACETATE WITH ORGANIC ACIDS
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTHE INTERCHANGE REACTION OF VINYL ACETATE WITH ORGANIC ACIDSROBERT L. ADELMANCite this: J. Org. Chem. 1949, 14, 6, 1057–1077Publication Date (Print):November 1, 1949Publication History Published online1 May 2002Published inissue 1 November 1949https://pubs.acs.org/doi/10.102…
Pore-Size Distribution in Textiles-A Study of Windproof and Water-Resistant Cotton Fabrics
A modified method for evaluating the distribution of pore spaces within a textile fabric, based on the principle outlined in the preceding paper in this series [1], is described. Data are reported for 14 tight fabrics, 6 of which had been treated with a water-repellent finish. The porosities of these fabrics are compa…
On the Theory of Electron Multiplication in Crystals
The theory of the multiplication of electrons in strong electrostatic fields is investigated. It is found that the non-polar coupling between electrons and lattice has an important effect on the retardation of electrons in polar materials as well as in non-polar ones if the electron is to be accelerated to an energy a…
Fabricación de cales hidráulicas
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Áridos de perlita: propiedades y empleo
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Causas de las deformaciones en la fabricación de ladrillo de arcilla
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Fabricación de productos de arcilla y terracota en Alemania
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Fabricación de bloques con máquinas automáticas
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Nueva excavadora locomovil
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Rocas utilizables en la fabricación de refractarios de sílice
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Necesidad de aislamientos térmicos en las paredes de ladrillo
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El yeso poroso
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