Alloy catalysts in dehydrogenation
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Materials Literature
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Raies de Debye–Scherrer et repartition des dimensions des domaines de Bragg dans les poudres polycristallines
It is shown that a study of the breadth of Debye-Scherrer diffraction lines leads to a determination not only of the mean dimensions of the crystallites in a given direction but also of the statistical distribution of these dimensions.
Dimensional Effects Resulting from a High Dielectric Constant Found in a Ferromagnetic Ferrite
A variety of a ferromagnetic ferrite is shown to have dielectric properties corresponding to a dielectric constant of the order of ${10}^{5}$. Coupled with a magnetic permeability of about ${10}^{3}$, this leads to dimensional resonance effects such that the apparent permeability of a core whose section is 2.5\ifmmode…
The dielectric properties of polyethylene terephthalate (Terylene)
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Théorie du traînage magnétique des substances massives dans le domaine de Rayleigh
Ce travail est consacré à l'étude théorique des lois du traînage magnétique des substances massives dans des champs magnétiques faibles vis-à-vis du champ coercitif, c'est-à-dire dans le domaine de Rayleigh. On suppose que les fluctuations thermiques permettent aux parois de séparation entre les domaines élémentaires…
The Influence of Nuclear Structure on the Hyperfine Structure of Heavy Elements
The influence on the h.f.s. of the finite size of the nucleus is considered and the effect is calculated for simple models of the nuclear magnetism. It is pointed out that the distribution of magnetic dipole density over the nuclear volume may vary greatly from nucleus to nucleus depending on the relative contribution…
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Freezing and thawing test of 30-year-old slab
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Sinthetic resin coatings for concrete surfaces
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Decoration of glass an ceraraic articles by xerography
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Semi-pneumatic tyres
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Diversify to expand concrete masonry production
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Nouvelle contribution a l'étude du retrait des Ciments
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Some applications of electric SR-4 gages in reinforced concrete research
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Volume changes in small concrete clinders during freezing and thawing
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Old fashioned cements vs. modern cements
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New type concrete pipe testing machine
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Readers discuss on cements, concrete and agregates
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