Effect of carbon dioxide on fresh concrete
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Materials Literature
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The use of iron aggregate concrete for heavy duty flooring
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La mayor fábrica de ladrillo del mundo
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Drying ratea in infrared drying of clay
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Timber and fire protection
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Water control in cement manufacture
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Scrubbing washing and sizing plant
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A patent cement kiln
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Rendimiento máximo de los separadores; Der Siohtvorgang
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How to tool concrete
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Surface Space-Charge Layers in Barium Titanate
Above the Curie temperature, pyroelectric currents can be produced in single crystals of barium titanate even though there is no electric field applied. The polarization that remains at these temperatures is ascribed to space-charge fields in the crystal. From studies of the wave forms of the pyroelectric current sign…
Low-angle X-ray diffraction patterns of collagen
Abstract Measurements have been made of the intensities of up to 25 orders of the low-angle X-ray diffraction patterns of wet and dry collagen fibres from three different sources. From these data Patterson functions have been plotted, and using these curves, and the known results of electron microscopy as guides in ma…
Auger Electron Emission in the Energy Spectra of Secondary Electrons from Mo and W
With the aim of determining to what extent the energy distribution of secondary electrons from targets of Mo and W may contain fine structure, measurements have been made using primary energies from 100 to 2000 electron volts. An electrostatic analyzer of the 127-degree type having an experimentally determined resolut…
Interpretation of Domain Patterns Recently Found in BiMn and SiFe Alloys
It is shown that in a demagnetized crystal in which closure domains do not form, the domain pattern on a surface perpendicular to the easy-magnetization axis varies with the thickness of the crystal. For thin crystals the domain configuration should consist of plane-parallel walls. As the thickness of the crystal is i…
Resonance Widths in Polycrystalline Nickel-Cobalt Ferrites
The width of the ferromagnetic resonance has been measured at 10 000 Mc/sec in polycrystalline mixed ferrites of the composition ${\mathrm{Co}}_{\ensuremath{\alpha}}{\mathrm{Ni}}_{1\ensuremath{-}\ensuremath{\alpha}}{\mathrm{Fe}}_{2}{\mathrm{O}}_{4}$, with $\ensuremath{\alpha}$ between 0 and 0.04. The minimum line widt…
Thermochemistry and reactivity of the azides - I. Thermochemistry of the inorganic azides
Abstract The problems of structure and reactivity of the azides are of course closely related to their thermochemistry. Lattice energies, electron affinities and bond energies are especially important. Although numerous investigations have been made both into slow thermal decomposition and explosive decomposition of t…
Some defects in crystals grown from the melt - I. Defects caused by thermal stresses
Abstract Crystals with a very open lattice, such as silicon, germanium, etc., having the cubic (A 4 or B3) structure, all tend to increase their interatomic distance by fairly large amounts on solidification from the melt, and severe stresses can be set up if conditions are such that the crystal cannot expand freely…
Magnetic Anisotropy and Cold Worked Texture of Titanium
Magnetic susceptibility determinations have been made for commercially pure titanium metal following various mechanical and thermal treatments. Making use of the known texture of heavily rolled titanium, values have been deduced for the principal susceptibilities and magnetic anisotropy of the hexagonal metallic latti…
On the Degradation of Branched Chain Molecules
A procedure for the derivation of the molecular weight distribution in a degrading branched polymer is developed. In the explicit calculations only sizes up to about twice the distance between branch points are considered. This is adequate to describe the rates of volatilization in the pyrolysis of polyethylenes. Expr…
Carbon–Oxygen and Carbon–Hydrogen Surface Complexes
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCarbon–Oxygen and Carbon–Hydrogen Surface ComplexesR. Nelson Smith, Jack Duffield, Robert A. Pierotti, and John MoolCite this: J. Phys. Chem. 1956, 60, 4, 495–497Publication Date (Print):April 1, 1956Publication History Published online1 May 2002Published inissue 1 April 195…