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1.
2.
The results are presented that were obtained at the Yakutsk array by investigating the time structure of a muon disk in extensive
air showers of primary energy in the region E
0 ≥ 5 × 1016 eV at distances of 250 to 1500 m from the shower core. The measurements were performed with a large muon detector that has
an area of 184 m2 and a detection threshold of E
μ≈0.5secθ GeV and which began operating in November 1995. Two components having different muon-disk thicknesses were discovered,
and this requires strong modifications in the currently prevalent idea of the development of extensive air showers. The problem
of the existence of E
0 ≥ 1020 eV events is considered.
__________
Translated from Yadernaya Fizika, Vol. 68, No. 1, 2005, pp. 74–88.
Original Russian Text Copyright ? 2005 by Glushkov, Dedenko, Sleptsov. 相似文献
3.
A. A. Ivanov S. P. Knurenko I. E. Sleptsov 《Journal of Experimental and Theoretical Physics》2007,104(6):872-886
We present a method for determining the energy of the primary particle that generates an extensive air shower (EAS) of comic rays based on measuring the total flux of Cherenkov light from the shower. Applying this method to Cherenkov light measurements at the Yakutsk EAS array has allowed us to construct the cosmic ray energy spectrum in the range 1015 ? 3 × 1019 eV. 相似文献
4.
5.
The one-phase Stefan problem was simulated numerically in a layer of semitransparent medium with different emissivity factors
at the right moving boundary. The effect of optic properties of irradiated surface on formation of temperature fields and
radiation flux densities was demonstrated. 相似文献
6.
A numerical investigation of a one-phase Stefan problem with various boundary conditions in a layer of semitransparent medium
is conducted. The significant influence of the optical properties of the medium and the illuminated surface on the generation
of temperature fields and radiation flow densities has been demonstrated. Superheating of the specimen near the illuminated
surface at the instant of the phase transition has been recorded.
The article was translated by L. Vertgeim. 相似文献
7.
8.
N. A. Rubtsov S. D. Sleptsov N. A. Savvinova 《Journal of Applied Mechanics and Technical Physics》2006,47(3):377-383
Numerical modeling of the single-phase Stefan problem in a semitransparent layer with transparent, nonabsorbing, and partially
radiation-absorbing boundaries is performed. It is shown that at low temperatures of the medium, convection is a determining
factor on the boundary of the irradiated sample, and at high temperatures, radiation is predominant. The absence of absorption
on the boundaries of the layer leads to acceleration of the heating of the plate and considerable deceleration of melting
processes.
__________
Translated from Prikladnaya Mekhanika i Tekhnicheskaya Fizika, Vol. 47, No. 3, pp. 84–91, May–June, 2006. 相似文献
9.
10.
A photoelectric spectrometer based on a DPS-12 instrument was used to study the luminescence spectrum of single-crystal rubidium uranyl nitrate at T = 77° K. This spectrum is compared to the infrared spectrum of the same specimen. Several of the frequencies of the luminescence spectrum are attributed to vibrations of the coordinate nitrate groups.The authors wish to express their sincere appreciation to Prof. A. N. Sevchenko, Academician of the Academy of Sciences, Belorussian SSR, for his unflagging interest in the present study. 相似文献