2304-9782, 2618-8686, 2405-7223 2 98 2010

RAR RUS 7-11 Maslovskaya Anna maslovskayaag@mail.ru Vanina Elena evanina@yandex.ru The ordered motion of ferroelectric crystal domain walls in the nonuniform thermal field A statistical model of a ferroelectric domain wall in the nonuniform thermal field is considered. The simulation is based on Monte-Carlo method. The system exhibits a self-oscillations behavior. Both a velocity and a rate of disorder of the wall show correlated oscillations during the wall drift toward the temperature gradient. 537.226.4, 538.956 ferroelectric domain boundary thermal field monte-carlo method model ordering https://physmath.spbstu.ru/article/2010.7.1/

RAR RUS 11-16 Agrafonov Yuri agrafonov@physdep.isu.ru Zelentsov Nikita Melenchuk Irina Petrushin Vasily basil@physdep.isu.ru Petrushin Ivan The singlet approach  adaptation of the statistical theory of surface phenomena A molecular system bordering on a hard impenetrable surface has been considered. The asymptotic value of the two-particle distribution function was calculated provided the particles were well off the surface. A new equation for one-particle distribution function was stated. That enabled to estimate the precision for the well known singlet approximation. 536.7; 538.956; 541.12; 541.67 molecular distribution functions surface physics singlet approach statistical theory https://physmath.spbstu.ru/article/2010.7.2/

CNF RUS 17-23 Bakaev Alexander bakaev_vic@mail.ru Zhurkin Evgeniy ezhurkin@phmf.spbstu.ru A simulation of primary radiation defects in silicon carbide bombarded by  carbon ions and clusters Characteristics of low-energy implantation of ions, clusters and fullerenes C[N] (N = 1, 5, 60) in silicon carbide have been presented. An analysis of the spatial distribution of the ranges of implanted atoms and features of defect production in the subsurface area of bombarded target versus the incident cluster size were carried out. 538.971 implantation clusters ranges defect production computer simulation https://physmath.spbstu.ru/article/2010.7.3/

CNF RUS 23-27 Smirnov Dmitry dsmirnov90@gmail.com Ioffe Institute Petrov Pavel pavel.petrov@gmail.com

St. Petersburg, Russian Federation

The states density simulation in 2D-system of charged impurities The states in the upper Hubbard band in lightly doped quantum wells have been studied. To do this, the density of states of the valence-band was numerically simulated depending on the temperature for arbitrary parameters of the QW, using the Metropolis algorithm. The results were in qualitative agreement with the temperature dependence of photolumines-cence spectra and conductance in such structures. 625.855.3 quantum well upper Hubbard band metropolis algorithm 2d-system https://physmath.spbstu.ru/article/2010.7.4/

CNF RUS 27-36 Peter the Great St. Petersburg Polytechnic University Apushkinsky Evgeniy apushkinsky@hotmail.com Peter the Great St. Petersburg Polytechnic University Popov Boris popov@tuexph.stu.neva.ru Peter the Great St. Petersburg Polytechnic University Sobolevskiy Vladimir sobolevskiy@physic.spbstu.ru The fluxoid oscillations and waves in the interior space of the HTSC The model explaining the phenomenon of a long-living radio-frequency echo-signal in superconductors according to which two ensembles of nonlinear oscillators take part in its formation has been offered. The first one is crystal lattices of grains of HTSC powder in which arise phonone fluctuations, and the second one is - fluxoid ensemble. Preservation of a phase of fluctuations by the second one allows to observe an echo-signal. 537.312.62 long-living radio-frequency echo-signal HTSC fluxoid nonlinear oscillator phonon oscilations https://physmath.spbstu.ru/article/2010.7.5/

CNF RUS 37-44 Pervadchuk Vladimir pervadchuk@mail.ru Shumkova Daria shumkova_darya@mail.ru An optimal control in the problems with a mobile thermosource The problem of mathematical simulation of managerial processes by systems with mobile thermal sources is considered. Process of an extract in manufacture of an optical fiber is investigated. The nonlinear problem about optimum control of capacity of a thermal source is formulated, the theorem of existence of the decision is proved, and the gradient method release is used. 517.097 optimal control distributed systems heat transfer mobile thermosource https://physmath.spbstu.ru/article/2010.7.6/

CNF RUS 45-53 Tsaplin Alexei tai@pstu.ru Boyarshinov Mikhail michaelgb@mail.ru A simulation of methane transfer in the atmosphere and an estimation  of its detonation opportunity when jettisoning pressure in the gas pipeline A mathematical model describing a mechanism of air-methane clouds forming in the atmosphere has been suggested. Minimum intensity of methane ejection from gas pipeline emergency valve that makes explosion enable at a height of over 500 m was estimated. This estimation confirms possibility of space explosion as a result of air-methane mixture ignition by lightning or other sources of high temperature. 532.516.5:523.529:519.63 boundary-value problem computational simulation geometrical decomposition method air-methane mixture https://physmath.spbstu.ru/article/2010.7.7/

CNF RUS 53-59 Zhgutov Vladimir abc.kitezh@gmail.com Mathematical models, the research algorythm and the ribbed shells steadiness analysis  taking into account the creeping of the material at finite bending flexures The mathematical deformation models and the algorithm of the ribbed shells research with joint geometrical nonlinearity and other factors accounting are proposed. It is shown, that the creeping of the material has a great impact on the decrease of the critical load estimated during the elastic behavior of the material. 539.3 ribbed shells geometrical nonlinearity creeping steadiness decrease of the critical load https://physmath.spbstu.ru/article/2010.7.8/

CNF RUS 59-67 Arseniev Dmitry Ivanov Vladimir Berkovskiy Nikolay berkovsk@mail.ru An adaptive importance sampling method with the bounded step number of the bisection process The adaptive importance sampling method is considered on the condition that the number of the bisection process steps is bounded. The potentialities of the method are illustrated by the approximate solution of the linear filtering problem. Detailed analysis of the results is made. 519.6 adaptive integration Monte-Carlo method importance sampling filtering problem https://physmath.spbstu.ru/article/2010.7.9/

RAR RUS 68-75 Stepanova Tamara t_stepanova2005@mail.ru Artamonova Alena E-4237-2014 12784708700 0000-0001-9050-4453 Peter the Great St. Petersburg Polytechnic University Kapralova Victoria kapralova2006@yandex.ru

Russia, 195251, St.Petersburg, Polytechnicheskaya, 29

Dielectric properties and conformation of poly-y-benzyl-L-glutamate and polymethylmethacrylate block-copolymers in dilute solution Static dielectric polarization of poly-y-benzyl-L-glutamate and polymethylmethacrylate block-copolymers in dilute chloroform solutions has been investigated. Macromolecular conformation of block-copolymers is shown to be dependent on molecular mass of the polymethylmethacrylate block. 539.193/194; 544.163.2 dielectric permittivity dipole moment block-copolymer polypeptide polymethyl-methacrylate conformation https://physmath.spbstu.ru/article/2010.7.10/

RAR RUS 76-80 Tsaplin Alexei tai@pstu.ru Nikulin Illarion Mathematical simulation of nonstationary hardening process of turbine engines single crystal blades A mathematical model describing a mechanism of air-methane clouds forming in the atmosphere has been suggested. Minimum intensity of methane ejection from gas pipeline emergency valve that makes explosion enable at a height of over 500 m was estimated. This estimation confirms possibility of space explosion as a result of air-methane mixture ignition by lightning or other sources of high temperature. 621.746.62 boundary-value problem computational simulation geometrical decomposition method air-methane mixture https://physmath.spbstu.ru/article/2010.7.11/

RAR RUS 80-85 Abdullaev Abdula h.m@pstu.ru Plekhova Elvira mc@pstu.ac.ru Savochkina Anna mc@pstu.ac.ru The solvability of quasilinear equation with monotone  operator The paper is devoted to the study of the solvability of the operator equation Lx = Fx, where L : X ^ Y - the linear limited noninvertible operator (resonance case) and F : X ^ Y - completely continuous operator; X, Y - Banach spaces. The existence theorem is proved in the conditions of the monotony of an auxiliary operator. To illustrate the developed approach, a solvability of a periodic boundary value problem for the second order differential equation is considered. 517.988 operator equations resonance existence of solution monotone operators periodic boundary value problem https://physmath.spbstu.ru/article/2010.7.12/

RAR RUS 85-95 Jordan Vladimir jordan@phys.asu.ru Soloviev Andrei asus_work@mail.ru The reduction of temperature particles distribution of heterogeneous flows by «the inverse» of their integrated thermal spectrum The problems connected with application of spectral pyrometry methods at a spraying of coatings are considered. The principle of operation of system of registration of an integrated thermal spectrum of particles radiation in heterogeneous flows is described. The method of a reduction of temperature particles distribution is offered and its perspectivity on research of processes at a spraying of coatings is shown. 535.233.43/535.321.54/536.52 the spraying of coatings the integrated thermal spectrum the heterogeneous flow reduction distribution https://physmath.spbstu.ru/article/2010.7.13/

RAR RUS 96-102 Ilin Nikita Kiesewetter Dmitry Method of optical vortices excitation in graded index optical fibers The technique of optical vortices excitation in optical fibers by focused laser beam is considered. The method of detection of optical vortices is described. The results of experimental investigation are presented. 53.083.91: 535.3 optical fiber optical vortex speckle-structure https://physmath.spbstu.ru/article/2010.7.14/

RAR RUS 102-106 Fadeev Dmitry fadedim@rambler.ru Seteikin Alexey An analysis of the multiple scattering of laser emission in biological environments of optical parameters fluctuated spattially A distribution of laser emission in the multilayered biological environment is simulated by the Monte-Carlo method. The density of the energy absorbent in the biological body was considered as a function of optical and geometrical parameters of heterogeneity. 57+615.47+621.373.8+535.8 multilayered biological environment Monte-Carlo method heterogeneity optical parameters multiple scattering https://physmath.spbstu.ru/article/2010.7.15/

RAR RUS 107-110 Lankin Sergei golubeva0212@mail.ru Vanina Elena evanina@yandex.ru Kiselyova Alena golubeva0212@mail.ru Golubeva Irina The influence of heat treatment on dielectric  properties of ceramic oxide materials Alumina ceramic dielectrics were investigated after thermal treatment. Activation energy values of conductivity were obtained before and after heat treatment of ceramics samples. The frequency dependences of permittivity and dielectric loss for hardened samples were considered. 537.9 thermal training ceramic materials dielectric permittivity activation energy https://physmath.spbstu.ru/article/2010.7.16/

RAR RUS 110-119 Trusov Pavel tpv@matmod.pstu.ac.ru Volegov Pavel crocinc@mail.ru Yantz Anton maximus5.59@gmail.com A description of intragrained and intergranular hardening in mono- and polycrystals The problem of the hardening description of mono- and polycrystals as a part of widely materials micro- and mesostruc-ture evolution on plastic deformation describing problem has been considered. New additional summand to hardening law which describe annihilation, splitting dislocation interaction and grain boundaries dislocation interactions was proposed. 539.3 hardening law crystal plasticity internal variables grain boundaries dislocation annihilation Lomer-Cottrell barriers https://physmath.spbstu.ru/article/2010.7.17/

RAR RUS 120-127 Spirin Denis ssdenis@mail.ru 0000-0003-0309-5917 Peter the Great St. Petersburg Polytechnic University Berdnikov Yaroslav berdnikov@spbstu.ru Gavrish Yuri unga1956@mail.ru Some concepts of large-size cargoes radioscopy Some physical and technical principles of customs radiometric complex construction for large-size cargoes radioscopy have been considered. Tests results for objects examination were presented and advantages over foreign analogues were shown. 539.1.06 radioscopy dual-energy method bremsstrahlung betatron https://physmath.spbstu.ru/article/2010.7.18/

RAR RUS 127-130 Mokrova Darya dashkeria@gmail.com Kafidova Galina gkafidova@gmail.com Some possibilities of noncontact pulse waves recording with the differential speckle-sensor Some possibilities of noncontact pulse waves measurements of a person in vivo using laser speckle methods have been considered. The realisation of noncontact high-sensitive sensor was carried out by the differential scheme. The laboratory model was developed and tested, and natural measurements were taken. 535.41, 535.39.01 speckle interferometer pulse wave heart rate monitoring sensor differential scheme https://physmath.spbstu.ru/article/2010.7.19/

RAR RUS 131-134 Krasnov Arseniy arseny.krasnov@gmail.com Parfenov Vladimir Semiconductor laser diodes power supply Some practical issues regarding the development of power supplies of semiconductor laser diodes used for pumping the active media of solid-state lasers have been considered. Power supply which has small sizes and low power consumption and can be used for work with diodes of various output power was worked out. 621.373.8 laser diode solid-state laser power supply pumping of actuating media power consumption https://physmath.spbstu.ru/article/2010.7.20/

RAR RUS 135-140 0000-0003-0309-5917 Peter the Great St. Petersburg Polytechnic University Berdnikov Yaroslav berdnikov@spbstu.ru 0000-0003-3298-3702 Peter the Great St. Petersburg Polytechnic University Ivanishchev Dmitry ivanishchev_da@pnpi.nrcki.ru 0000-0002-3395-0454 Peter the Great St. Petersburg Polytechnic University Kotov Dmitry dmitriy.kotov@gmail.com Ryabov Victor Ryabov Yuri Samsonov Vladimir Phi-meson production in deuterium and gold nuclei collisions at *Jsm = 200 GeV Phi-meson resulting spectra and nuclear modification factors measured in d + Au collisions at = 200 GeV have been presented. A comparison with nuclear modification factors measured for phi-mesons, neutral peons and protons was carried out under such conditions. 539.125.17; 539.126.17 quark-gluon plasma mesons production collision analysis https://physmath.spbstu.ru/article/2010.7.21/

RAR RUS 141-151 Institute for Analytical Instrumentation of the Russian Academy of Sciences Gall Lydia lngall@yandex.ru

Russia, 190103, St. Petersburg, 26 Rizhsky Ave.

Institute for Analytical Instrumentation of the Russian Academy of Sciences Gall Nikolai gall@ms.ioffe.ru

Russia, 190103, St. Petersburg, 26 Rizhsky Ave.

Collective processes in the bio-molecular systems Collective processes in the molecular units being produced by bio-polymers of a living cell have been considered. The reason for such processes has been shown to be the unity of the system of both a biological molecule and some water in a living organism. This system is being held by energy fields in a state of relatively stable nonequilibrium; the state can conserve only while consuming external energy. The molecular unit definition is phrased. 577.23 nonlinear processes solitone water fractal spin echo bio-molecular systems molecular unit https://physmath.spbstu.ru/article/2010.7.22/

CHR RUS 152-158 Kesamanly Fagam Abram Fyodorovich Ioffe as a member of the Academy of Science of the USSR (on the occasion of his 130th birthday) 929 https://physmath.spbstu.ru/article/2010.7.23/