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Ruzhin Yu.Ya.,Russian Academy of Sciences | Kuznetsov V.D.,Russian Academy of Sciences | Kovalev V.I.,Russian Academy of Sciences | Bershadskaya I.N.,Russian Academy of Sciences | And 5 more authors.
Radiophysics and Quantum Electronics | Year: 2012

We present the results of analysis of helio-geophysical conditions for the experiments performed in 2007-2010 to study modification of the ionosphere by high-power radio emission of the "Sura" heating facility. The feature of the experiments is that the operating frequency of the facility exceeded the upper-hybrid frequency for the F 2 layer maximum in the ionosphere. All the experiments were performed in the local-time sector of the Harang discontinuity (i.e., from 21:00 to 00:00, local time) to ensure the most probable influence of the facility operation on the onset of natural processes in the subauroral region of the ionosphere. At least two experiments were found to demonstrate that the observed substorm activity in the region of the modification produced by the facility could be stimulated by its operation. The results of the ground- and satellite-based measurements, both in the vicinity of the "Sura" facility and in the magnetically conjugate region, confirm the conclusion about the possibility of substorm localization by this facility. © 2012 Springer Science+Business Media, Inc.

Shcherbinskii V.G.,Central Research Institute of Mechanical Engineering | Artem'Ev S.A.,Central Research Institute of Mechanical Engineering | Antonova N.M.,Central Research Institute of Mechanical Engineering | Panferov K.V.,Central Research Institute of Mechanical Engineering | And 4 more authors.
Russian Journal of Nondestructive Testing | Year: 2014

A new generation of devices for ultrasonic checking of flats for metallurgical works has been developed. The new LICT-4 mobile device from the Central Research Institute of Mechanical Engineering (CNIITMASH) reveals discontinuity flaws according to GOST (State Standard) 22727-88, GOST 28831-90, and foreign standards. © 2014 Pleiades Publishing, Ltd.

The method of invariant relations rigorously validated under the conditions of “local mechanical interaction” is applied to the derivation of approximate formulas for calculating the aerodynamic parameters of axisymmetric flight vehicles, whose generators represent combinations of rectilinear and ogive-shaped sections, on a basis of three canonical vehicle shapes with the same mid-sections in reduced coordinates. These are the circular disk, the spherical segment, and the sharp circular cone tangent to the segment along the contour of its mid-section, with the semi-vertex angle 0 ≤ θk < 90°. © 2015, Pleiades Publishing, Ltd.

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