A model for calculating the fragmentation probability of a specific valence bond of an organic molecule exposed to IR radiation is proposed. The model is based on excitation by an external periodic electric field of many independent collective vibrational states (excimoles) in molecular substructures containing identical ordered diatomic valence bonds with a dipole moment. It is assumed that the eximole vibrational energy cannot be concentrated on one valence bond of a substructure. It is shown that radiationless transfer of excimole energy to a specific molecular valence bond that does not belong to the identical dipole substructure may result in molecular dissociation. An analytical expression for the molecular dissociation probability function is obtained in the framework of the model, which demonstrates significant dependence of this function on the spacing between the centers of mass of a breaking trap bond and the adjacent diatomic bond of the subsystem. For the case of fragmentation of lucine and isolucine isomers, this result has been experimentally verified.
Show AbstractMathematical substantiation for the computational algorithm solving the problem of propagation of electromagnetic waves in a cylindrical waveguide with local chiral filling is given.
Show AbstractA hemodynamic blood flow model allowing one to analyze changes in the hemodynamic parameters of a capillary channel and also a diffusion—filtration synergism model are proposed. Based on the mathematical model presented, possible mechanisms of hemodynamic parameter disturbance, along with gas-exchange disturbances in the blood—tissue system, caused by damages inflicted on the ultrastructure of the capillary wall are discussed.
Show AbstractA new approach to data interpretation based on a test experiment is presented. The new technique for data interpretation is based on the theory of computeraided measuring systems. It is assumed that the model of measurement is a priori unknown and must be estimated on the grounds of test experiments in the new method. The measurement interpretation result is considered as an output signal from a device closest to an ideal one at the specified level of random error.
Show AbstractA rigorous method for solving the eigenwave problem for anisotropic gradedindex lightguides is described. For all guided modes of such a lightguide, exact expressions of the field generators, dispersion equations, and equations for the critical wave lengths are obtained.
Show AbstractThe fermionic representations of Lie algebras of type $B_n$ are described. Commutation relations for the generators of the oscillator-fermionic algebra are calculated.
Show AbstractThe behavior of energetic solar cosmic ray (SCR) protons recorded on the Earth's orbit before, during, and after inversion of the solar polar magnetic field in the 21st, 22nd, and 22rd eleven-year cycles of solar activity is analyzed. During all three cycles, prolonged (for about a year) reductions in fluences by a factor of almost ten have been detected, and they coincide in time with the inversion period. Accompanying these reductions is a substantial softening of the energy spectrum of SCR protons, which may serve as an additional indication of the inversion of the solar polar magnetic field.
Show AbstractThe calculation results on electron-beam optics in a laser microaccelerator with a pump wavelength of 10 pro. are presented. The relationship between the principal parameters of the electron-optical system and the laser wavelength are given.
Show AbstractThe results of the analysis of the times of recording of extensive air showers (EAS) by the EAS-1000 Prototype Array operating in conjunction with the EAS MSU array are presented. These times are shown to be distributed according to the Poisson law for the majority of showers. At the same time, local deviations from the given distribution have been detected.
Show AbstractConsidering the interaction between the anomalous magnetic moments of the particles and the external field, the energy spectra and the Dirac equation solutions for charged and neutral fermions are obtained. The total probability for the inverse $\beta^{+}$-decay of the proton in the strong homogeneous magnetic field, with due regard for the anomalous magnetic moments of the nucleons, is found.
Show AbstractThe original experimental setup for measuring thermal and excess mechanical noise in prototype mirror suspensions of gravitational wave antennas and the results obtained with its aid for quartz fiber suspensions are presented.
Show AbstractQuasioptimal Bayesian algorithms used to statistically analyze the information gathered from spaced resonant gravitational antennas operating within a coincidence circuit are considered. The initial processing (accumulating) of gravitational data is done according to sidereal time.
Show AbstractPhysico-molecular foundations of a long-term memory of water are discussed. It is shown that the clathrate water model can be used to substantiate the method of recording information in the pure water bulk. The information storage time is first calculated to range from a few minutes to a year. Methods of recording information resulting in the water activation are considered. A brief analysis of a biological effect of activated water is performed.
Show AbstractThe phenomenon of origination of a two-dimensional cluster speckle pattern in the vicinity of a one-dimensional chain speckle pattern has been experimentally discovered. It is due to the transverse dispersion of the resonance rescattering of surface plasmon—polaritons on a chaotically modulated metal diffraction grating with a rough surface.
Show AbstractThe directions of the phonon focusing in the $\alpha$- and $\beta$-quartz phases in the 20—600°C temperature range comprising a second-order transition at Tc = 573°C have been determined. Temperature-dependent variation of focusing both on a symmetry plane and in space has been studied. It is shown that, as the temperature is increased, the phonon focusing becomes weaker in the $\alpha$-phase and disappears in the $\beta$-phase: all waves become virtually ordinary.
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