New solid supports have been prepared from rocks such as perlite and volcanic slags by alkali-acid treatment. Their physico-chemical characteristics (bulk density, specific surface area, pH, mechanical strength) are similar to those of solid supports of diatomite origin. They are characterized by lo
Determination of certain physical properties of a solid on the basis of the interatomic interaction potential
β Scribed by N. I. Nikitenko
- Publisher
- Springer US
- Year
- 1980
- Tongue
- English
- Weight
- 456 KB
- Volume
- 38
- Category
- Article
- ISSN
- 1573-871X
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On the basis of the Coulomb cut-off potential model [Z, 31 electrical conductivity calculations for a H-Plasma are carried out in a temperature and density range 8000 K 5 T 5 50000 K and 1018 om-3 5 n, 5 1024 The electron-ion scattering is included by the semiclassical result given in [2, 31, where
The properties of stereoregular polypropylene have been modified by the introduction of controlled branching into the polymer chain backbone. Branching is achieved by copolymerizing propylene with certain long-chain 1-olefins by using a standard Ziegler-Natta low pressure catalyst. Physical and mech