Zobrazeno 1 - 10
of 182
pro vyhledávání: '"A. T. Serkov"'
Autor:
A. T. Serkov
Publikováno v:
Fibre Chemistry. 43:197-207
A moving model fiber of diameter 0.2-1.0 mm is used to study boundary layer formation as a function of distance, velocity of motion, and diameter of the fiber. An equation is obtained that describes the dependence of the boundary layer thickness on t
Autor:
A. T. Serkov
Publikováno v:
Cosmic Research. 47:345-350
Autor:
A. A. Serkov, A. T. Serkov
Publikováno v:
Fibre Chemistry. 41:60-65
The orbit radii of the hydrogen atom were calculated using the values of the van der Waals and two covalent radii and the well-known quadratic dependence of the orbit radii on a series of whole numbers (Bohr equation). Using the equation for the orbi
Autor:
A. T. Serkov, M. B. Radishevskii
Publikováno v:
Fibre Chemistry. 40:32-36
The features of nanotechnologies and possibility of applying them in research and industrial practice in the chemical fibres sector are examined. Structural elements 1–100 nm in size are the objects of nanotechnologies. The cross sections of fibril
Autor:
A. T. Serkov, M. B. Radishevskii
Publikováno v:
Fibre Chemistry. 40:24-31
Production of PAN-based carbon fibres (CF) is a rapidly developing sector. Production in 2006 was 28,000 tons. The production capacities in 2007 increased to 55,500 tons and will attain 66,000 tons in 2008. The Japanese companies Toray, Toho, and Mit
Autor:
A. T. Serkov
Publikováno v:
Fibre Chemistry. 39:60-63
A hypothesis concerning the orbital mechanism of formation of the IR absorption spectra of polyacrylonitrile and carbon fibres was advanced and quantitatively substantiated. The previously advanced hypothesis concerning the gravitational mechanism of
Autor:
A. T. Serkov
Publikováno v:
Fibre Chemistry. 38:495-498
In reporting the results of an examination of the mechanism of formation of chemical bonds in carbon fibres, the following conclusions can be drawn: — the existing concepts concerning curved hybrid bonds and σ-, π-bonds do not explain their compa
Autor:
M. B. Radishevskii, A. T. Serkov
Publikováno v:
Fibre Chemistry. 37:266-271
Spinning baths are divided into three types as a function of the coagulating (desolvating) power: hard, soft, and ultrasoft. The concentration of precipitant cp in hard spinning baths is two times higher than the critical (threshold) precipitation co
Autor:
A. T. Serkov
Publikováno v:
Fibre Chemistry. 37:222-226
Use of the Periodic System of Elements for analyzing the physicomechanical properties of chemical fibres was examined. An equation that quantitatively describes the periodicity of the change in the physical and chemical properties of the elements wit
Autor:
A. T. Serkov
Publikováno v:
Fibre Chemistry. 35:336-341
The thermodynamic definition of a rise in the temperature as a quantity characterizing the thermodynamic equilibrium of a system and the physical equilibrium is examined as a measure of the average kinetic energy of molecules; their limitations are n