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1.
V. G. Kulakova 《Journal of Mathematical Sciences》1978,9(2):277-279
One indicates how to construct the reduction of an arbitrary positive projection in to a strictly positive one and one proves that the latter is almost the operator of the conditional mathematical expectation relative to some -sub-algebra. More exactly, one shows a method of selecting from a strictly positive projection an operator of conditional mathematical expectation type (this concept is introduced in the paper).Translated from Zapiski Nauchnykh Seminarov Leningradskogo Otdeleniya Matematicheskogo Instituta im. V. A. Steklova AN SSSR, Vol. 47, pp. 172–174, 1974. 相似文献
2.
Khorkin V. S. Voloshinov V. B. Efimova A. I. Kulakova L. A. 《Optics and Spectroscopy》2020,128(2):244-249
Optics and Spectroscopy - Acoustic, optical, and acousto-optic properties of amorphous germanium-, selenium-, silicon-, and tellurium-based alloys have been studied. The velocities of longitudinal... 相似文献
3.
A new principle of the diode laser frequency tuning has been developed and implemented. According to this, the laser frequency is tuned by alternating strain in the active region of an InGaAsP/InP laser heterostructure emitting in a wavelength range of 1.3–1.8 µm. The strain is induced through the excitation of bulk ultrasonic waves in these heterostructures by means of a specially developed technique. Data on the influence of the alternating strain, induced by the bulk ultrasonic waves, on the spectral characteristics of laser radiation are presented. Estimates based on these data show that the frequency tuning range amounts to ΔF≈110 GHz for an acoustic wave with the frequency f=6.5 MHz and a power of about 1 W. 相似文献
4.
E. D. Skakovskii L. Yu. Tychinskaya O. A. Gaidukevich A. Yu. Klyuev A. N. Kulakova N. M. Petlitskaya S. V. Rykove 《Journal of Applied Spectroscopy》2007,74(4):584-588
We studied the fatty-acid composition of oils from pine nuts and seeds of common pine using PMR and 13C NMR and gas chromatography. We found that the main components of the glycerides are palmitic, stearic, oleic, linoleic,
γ-linolenic, pinolenic, and cis-9-eicosenoic acids. The oils contain about 2% sn-1,2-diacylglycerides in addition to triglycerides.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 74, No. 4, pp. 528–532, July–August, 2007. 相似文献
5.
G. V. Lisichkin V. V. Korol’kov B. N. Tarasevich I. I. Kulakova A. V. Karpukhin 《Russian Chemical Bulletin》2006,55(12):2212-2219
A procedure for the photochemical chlorination of nanodiamond by molecular chlorine in the liquid phase was proposed. This
process was studied quantitatively for the first time. Hydrolytic stability of the chlorinated nanodiamond surface in air
and in a 0.05 M solution of NaOH was determined. A possibility of disintegration of the initial aggregates (<60 μm) to finer aggregates (<200
nm) was shown. The reactions of a series of C-nucleophiles (organolithium reagents, CN− ion) with the chlorinated surface were carried out.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 12, pp. 2130–2137, December, 2006. 相似文献
6.
The theory of non-linear acoustical noise amplification in piezoelectric semiconductors is developed on the basis of the rigorous equation for the phonon distribution function. The theory explains shift of the noise intensity maximum in q-space towards small values of q. 相似文献
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Russian Chemical Bulletin - The full-atom 3D model of the dimer of the photoregulated adenylyl cyclase is constructed. It contains a molecule of flavin mononucleotide chromophore in the... 相似文献
10.
Physics of the Solid State - The time changes of permittivity, damping and velocity of sound are studied for PbFe0.5Nb0.5O3 and PbFe0.5Nb0.5O3–7PbTiO3 single crystals in the electric fields... 相似文献