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The temperature dependences of the shear viscosity of glasses in the Rb2O-B2O3-SiO2 system are investigated using the bending method on a quartz viscosimeter in the viscosity range 1011-1013 P. 相似文献
3.
Mandelbaum Avi Massey William A. Reiman Martin I. Stolyar Alexander Rider Brian 《Telecommunication Systems》2002,21(2-4):149-171
We consider a Markovian multiserver queueing model with time dependent parameters where waiting customers may abandon and subsequently retry. We provide simple fluid and diffusion approximations to estimate the mean, variance, and density for both the queue length and virtual waiting time processes arising in this model. These approximations, which are generated by numerically integrating only 7 ordinary differential equations, are justified by limit theorems where the arrival rate and number of servers grow large. We compare our approximations to simulations, and they perform extremely well. 相似文献
4.
V. A. Seredkin S. V. Stolyar G. I. Frolov V. Yu. Yakovchuk 《Technical Physics Letters》2004,30(10):820-822
A new principle of data writing and erasing is proposed based on the exchange coupling between magnetic layers with mutually
orthogonal orientations of the effective magnetization. The new method provides for a significant decrease in energy consumption.
The possibility of using bilayer magnetic films of the (rare earth metal-transition metal)/NiFe type possessing unidirectional
anisotropy as the media for thermomagnetic writing and erasing of magnetooptical data is studied. 相似文献
5.
S. V. Korshikov N. S. Polyakov A. A. Stolyar D. S. Polyanskii G. M. Timanov 《Metallurgist》1995,39(10):178
Translated from Metallurg, Vol. 39, No. 10, p. 21, October, 1995. 相似文献
6.
S. V. Stolyar L. V. Grishchenko G. A. Sycheva V. L. Stolyarova 《Glass Physics and Chemistry》2006,32(1):52-54
The viscosities of glasses in the Cs2O-B2O3-SiO2 system are measured by the bending method on a quartz viscosimeter in the temperature range 300–670°C. The temperature dependences of the viscosity of the glasses under investigation are determined, and the temperatures corresponding to the viscosities equal to 1011, 1012, and 1013 P are calculated. 相似文献
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S. V. Stolyar O. A. Bayukov Yu. L. Gurevich V. P. Ladygina R. S. Iskhakov P. P. Pustoshilov 《Inorganic Materials》2007,43(6):638-641
Mössbauer measurements reveal four inequivalent Fe sites in ferrihydrite produced by Klebsiella oxytoca. The origin of these sites can be understood in terms of two nanosized structural regions in the bacterium and a certain ordering of bilayers and single layers of Fe-occupied octahedra. 相似文献
10.
S. V. Stolyar N. G. Tyurnina Z. G. Tyurnina L. A. Doronina 《Glass Physics and Chemistry》2008,34(4):509-511
The temperature dependences of the viscosity are investigated for three series of glass melts in the SrO-B2O3-SiO2 system with a constant strontium oxide content equal to 35, 40, or 45 mol % in the viscosity range from 1010 to 1013 P. 相似文献