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Makarova N. A. Kazakova E. Kh. Salahutdinova Z. F. Enikeev K. M. Konovalov A. I. 《Russian Journal of General Chemistry》2002,72(10):1556-1559
Various-composition supramolecular complexes of calix[4]resorcinolarene with diglycidyl methylphosphonate were synthesized in organic solvents. The products have well-defined melting points, they are cleaved by acetylation, but remain unchanged on treatment with triethylamine. 相似文献
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E. N. Abdullin N. G. Ivanov B. M. Kovalchuk I. N. Konovalov V. F. Losev A. N. Panchenko Yu. N. Panchenko V. S. Skakun V. F. Tarasenko A. G. Yastremsky 《Laser Physics》2006,16(1):104-115
Two-high power excimer laser systems with square (25 × 25 cm) and circular (with a diameter of 40 cm) cross sections of the
output laser beam are described. The first (second) system consists of four (five) excimer lasers. The experimental results
on the generation of the high-quality high-power laser pulses are presented. Laser beams with a pulse duration of 1–250 ns,
a divergence of 0.01 mrad, a spectral line width of 0.01 cm−1, and a pulse energy of up to 330 J are obtained.
Original Text ? Astro, Ltd., 2006. 相似文献
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The passive systems for ensuring the thermal regime of space objects, which are in current use, can preserve the temperature
at the same level only under a certain orientation of spacecraft and at a constant heat release of the equipment. At a variable
orientation of the space object, its temperature may vary due to a possible illumination of the radiator-emitter of the system
for ensuring the thermal regime by the solar or planet radiation. At a variable heat release the object temperature changes
due to an off-design regime of the radiator operation. To compensate for the given effects the active elements are used —
the heaters and coolers. This reduces the reliability of thermal regulation system and, consequently, the reliability of the
entire spacecraft.
The solutions are proposed, which create in the absence of active elements in the thermal regulation system the internal mechanisms
enabling a compensation of the variability of heat fluxes both at a reorientation of the spacecraft and at a variation of
the internal heat release. 相似文献
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Zakharova L. Ya. Mirgorodskaya A. B. Zhil"tsova E. P. Kudryavtseva L. A. Konovalov A. I. 《Russian Chemical Bulletin》2004,53(7):1385-1401
The factors determining the catalytic effect of supramolecular systems on the nucleophilic substitution reactions are analyzed. The role of the structural and phase transitions of nanoaggregates in the catalytic mechanism are determined. The substrate specificity is shown for different structures of the supramolecular composition. 相似文献