United States standard for sulphate-resistant portland cement
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Materials Literature
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Synthetic cement produced by newly-petented process
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La chimie électronique et les nouvelles techniques routières
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New modified sic
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La flotación y la industria del cemento
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A large rotary kiln in France
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1950 Fourth straight peak year
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L’impiego del metano nei forni rotanti da cemento
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Defective mortar and concrete in marine works
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ASTM convenes in Atlantic City for 54th annual meeting
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Blowing of internal plaster
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The cement industry in Japon
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The transport of cement in special sacks
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Per Ia razionale scorificazione del clinker di cemento
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Neutron Scattering and Polarization by Ferromagnetic Materials
Neutron diffraction studies are reported on a series of magnetized and unmagnetized ferromagnetic materials. The diffraction patterns for unmagnetized, polycrystalline samples of Fe and Co are found to possess both nuclear and magnetic components with the latter in agreement with the magnetic scattering theory with re…
Application of Collective Treatment of Electron and Ion Vibrations to Theories of Conductivity and Superconductivity
Received 21 September 1951DOI:https://doi.org/10.1103/PhysRev.84.836.2©1951 American Physical Society
Measurement of Multiple Scattering of 15.7-Mev Electrons
The angular distribution of electrons scattered by thin Be and Au foils has been measured for angles where the multiple scattering is important. The $\frac{1}{e}$ widths of the distributions obtained with Au foils of 18.66 and 37.28 mg/${\mathrm{cm}}^{2}$ are 2.58\ifmmode^\circ\else\textdegree\fi{} and 3.76\ifmmode^\c…
A Note on the Propagation of Excitation in an Idealized Crystal
It is shown that, in insulators, overlapping of the electronic wave functions of near-by crystal constituents is not necessary for effective transfer of excitation energy by the "exciton" mechanism. The electromagnetic interaction of the "virtual" dipoles of the transition is sufficient to give rise to such transfer c…
The Physical Properties of Cuprous Sulfides-Semiconductors
Cuprous sulfide has been observed to have two transition points at about 110°C and 470°C respectively, of which the latter one has been found out experimentally by the writer. The exsistence of the phase transition at 470°C has been confirmed experimentally by the measurements of electronic and ionic conductivity, the…
Theory of the Specific Heat of Graphite
The graphite crystal is considered as a system of thin elastic plates spaced at a constant distance. An elastic force is assumed to act between each neighboring plates in such a way that a local change of the spacing between them produces at that point a tension or a pressure normal to the plates whose magnitude is pr…