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161.
I. R. Barabanov L. B. Bezrukov A. V. Veresnikova Yu. M. Gavrilyuk A. M. Gangapshev V. Yu. Grishina V. I. Gurentsov V. P. Zavarzina V. V. Kazalov S. D. Krokhaleva V. V. Kuz’minov A. S. Kurlovich B. K. Lubsandorzhiev S. B. Lubsandorzhiev A. K. Mezhokh V. P. Morgalyuk P. Yu. Naumov G. Ya. Novikova V. B. Petkov A. M. Pshukov A. Yu. Sidorenkov V. V. Sinev Sh. I. Umerov E. A. Yanovich T. Enquist P. Kuusiniemi J. Joutsenvaara A. Virkajarvi 《Physics of Atomic Nuclei》2017,80(3):446-454
At the Baksan Neutrino Observatory (Institute for Nuclear Research, Russian Academy of Sciences, Moscow) deployed in the Caucasus mountains, it is proposed to create, at a depth corresponding to 4760 mwe, a large-volume neutrino detector on the basis of a liquid scintillator with a target mass of 10 kt. The detector in question is intended for recording natural fluxes of neutrinos whose energy may be as low as 100MeV. Neutrino fluxes from various sources are considered in the present study, and the expected effect in the proposed detector is estimated. The detector hat is being developed at the Baksan Neutrino Observatorywill become part of the world network of neutrino detectors for studying natural neutrino fluxes. 相似文献
162.
In this paper, it is shown that the laser radiation intensity required for complete ionization of vapors produced on an irradiated metal surface can be reduced by more than an order of magnitude through using pulsed laser radiation in combination with microwave radiation. 相似文献
163.
Explicit and approximate solutions of second‐order evolution differential equations in Hilbert space
Ivan P. Gavrilyuk Vladimir L. Makarov 《Numerical Methods for Partial Differential Equations》1999,15(1):111-131
The explicit closed‐form solutions for a second‐order differential equation with a constant self‐adjoint positive definite operator coefficient A (the hyperbolic case) and for the abstract Euler–Poisson–Darboux equation in a Hilbert space are presented. On the basis of these representations, we propose approximate solutions and give error estimates. The accuracy of the approximation automatically depends on the smoothness of the initial data. © 1999 John Wiley & Sons, Inc. Numer Methods Partial Differential Eq 15: 111–131, 1999 相似文献
164.
Ukrainian Mathematical Journal - We study some resonant equations related to the classical orthogonal polynomials and propose an algorithm for finding their particular and general solutions in the... 相似文献
165.
Ukrainian Mathematical Journal - The ideas of the method of fictitious domains and homotopy are combined with an aim to reduce the solution of boundary-value problems for multidimensional partial... 相似文献
166.
Ukrainian Mathematical Journal - We propose and analyze an exponentially convergent numerical method for solving differential equations with right-hand fractional Riemann–Liouville derivative... 相似文献
167.
Processes underlying the laser photochromic effect in colloidal plasmonic nanoparticle aggregates
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We have studied the dynamic and static processes occurring in disordered multiparticle colloidal Ag aggregates with natural structure and affecting their plasmonic absorption spectra under pico-and nanosecond pulsed laser radiations, as well as the physical origin responsible for these processes. We have shown that depending on the duration of the laser pulse,the mechanisms of laser modification of such aggregates can be associated both with changes in the resonant properties of the particles due to their heating and melting(picosecond irradiation mode) and with the particle shifts in the resonant domains of the aggregates(nanosecond pulses) which depend on the wavelength, intensity, and polarization of the radiation.These mechanisms result in formation of a narrow dip in the plasmonic absorption spectrum of the aggregates near the laser radiation wavelength and affect the shape and position of the dip. The effect of polydispersity of nanoparticle aggregates on laser photochromic reaction has been studied. 相似文献
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The state-of-the-art in realization of the method of distribution of relaxation times (DRT) as applied to the analysis of data of electrochemical impedance spectroscopy is briefly surveyed. The theoretical fundamentals of the DRT method are described, the methods of solving the Fredholm equation of the 1st order with respect to the unknown DRT function are considered as an ill-defined problem. The Tikhonov regularization method presently considered as the most suitable for solving this equation is discussed. For several numerical experiments, the high resolution of the DRT method and its stability with respect to noise in impedance spectra are demonstrated. Among the problems and limitations of the DRT methods, the choice of the optimal regularization coefficient is considered as the most significant. Particularly, it is shown that in those cases where several relaxation processes with the constant phase angle appear in the response of objects under study to ac disturbances, different regularization coefficients should be selected for each of these elements in order to obtain adequate results. 相似文献