2304-9782, 2618-8686, 2405-7223 1 189 2014

RAR RUS 9-15 Peter the Great St. Petersburg Polytechnic University Gorobei Natalia n.gorobey@mail.ru Peter the Great St. Petersburg Polytechnic University Luk'yanenko Alexander alex.lukyan@rambler.ru On the energy balance in the thermoelastic effect The energy balance in the thermoelastic effect is analysed in the framework of the mechanically deformed ensemble of anharmonic oscillators. As the result, two aspects of mechanical loading - the macroscopic deformation of a sample, with corresponding addition to the energy balance (the mechanical work), and the vibration energy of oscillators change at the microscopic level, are separated. Between these two parts of the internal energy of the sample the exchange in the thermo-elastic effect takes place. The low temperature limit in which the vibration energy reduces to the energy of zero vibrations is also considered. 538.9(075) energy thermo-elastic effect energy balance deformation anharmonic oscillator https://physmath.spbstu.ru/article/2014.23.1/ 01ph_1_2014edit.9_15.pdf

RAR RUS 16-25 Arefyev Konstantin Hrushchenko Alexander hrushenko@mail.ru The calculation of oxygen mass exchange in human lungs The article considers the impact of the diffusion capacity of the lungs to process oxygen transfer from the gas phase of the alveoli into the blood capillaries of the lungs. The main transport of oxygen in the blood takes place in a bound state with the hemoglobin of red blood cells. Therefore, the diffusion capacity of the lungs to transport gases other than diffusion through tissue affects the rate of reaction of oxygen with hemoglobin and red blood cell membrane permeability. The dependence of the reaction rate of oxygen on hemoglobin oxygen tension is analyzed using various literary sources. Using a mathematical model of the lungs and experimental data taken from the literature the rate of oxygen reaction with hemoglobin was evaluated. Numerical results when compared with the experimental data showed a good result. 533.15: 612.22 diffusion capacity oxygen reaction rate with hemoglobin permeability of the erythrocytemembrane oxygen transfer from gas phase into blood https://physmath.spbstu.ru/article/2014.23.2/ 02ph_1_2014edit.16_25.pdf

RAR RUS 26-34 Volgograd State University Lebedeva Olga lebedeva_os@volsu.ru The influence of the stretching and compression deformations on the piezoresistance of the carbon nanotubes and graphene nanoribbons In this article the influence of the stretching and compression on the conducting properties of carbon nanoparticles (nanotubes, nanoribbons) accounting the changes in the transverse dimensions of the sample is studied theoretically. The analytical calculation of piezoresistive constants of carbon nanoparticles with the account of transverse strain was carried out. It is shown that the elastoconductivity tensor of metallic nanotubes is independent of its diameter. The monotonic increase in the longitudinal component of the tensor with the increasing its diameters of semiconducting nanotubes was obtained. It is shown that increasing or decreasing of the piezoresistive constant of semiconducting nanotubes with the relative tension or compression strain.The results are compared with the literature data. A physical justification of the observed dependence was described.nanoparticles (nanotubes, nanoribbons) accounting the changes in the transverse dimensions of the sample is studied theoretically. The analytical calculation of piezoresistive constants of carbon nanoparticles with the account of transverse strain was carried out. It is shown that the elastoconductivity tensor of metallic nanotubes is independent of its diameter. The monotonic increase in the longitudinal component of the tensor with the increasing its diameters of semiconducting nanotubes was obtained. It is shown that increasing or decreasing of the piezoresistive constant of semiconducting nanotubes with the relative tension or compression strain.The results are compared with the literature data. A physical justification of the observed dependence was described. 544.225.22+25; 544.22.022.384.3; 539.371 Huckel approximation Hubbard’s model Green’s function method elastoconductivity tensor https://physmath.spbstu.ru/article/2014.23.3/ 03ph_1_2014edit.26_34.pdf

RAR RUS 35-38 Kanunnikova Elena postgr@list.ru Analytic-numerical method to solve 3D exterior boundary problems for elliptic equations The paper considers analytic-numerical method to solve 3D exterior problems for elliptic equations under Dirichlet and Neumann boundary conditions in half-space. The solution algorithm is concerned 519.632 exterior boundary problems 3D half-space elliptic equation https://physmath.spbstu.ru/article/2014.23.4/ 04ph_1_2014edit.35_38.pdf

RAR RUS 39-47 0000-0002-8499-8650 Ioffe Institute of RAS Pakhotin Vladimir v.pakhotin@mail.ioffe.ru Zakrevskii Vladimir v.zakrevsky@mail.ioffe.ru Kharaldin Ivan ikharaldin@gmail.com Some features of measurement of breakdown current through dielectrics Some different circuits for measurement of breakdown current through dielectric films have been analyzed and a notion for shunting discharge current in a capacitor measuring cell flowing along the breakdown canal was introduced. A circuitry for measurement of breakdown current was put forward. It permits one to work out the shunting current and the breakdown canal resistance using the results of measurements of pulse parameters of breakdown current. 537.529:621.317 electrical breakdown breakdown current measuring procedure pulse parameter shunting current https://physmath.spbstu.ru/article/2014.23.5/ 05ph_1_2014edit.39_47.pdf

RAR RUS 48-54 Golovkov Oleg Ryazan State University named for S.A.Yesenin Stepanov Vladimir vl.stepanov@365.rsu.edu.ru Kuptsova Galina Influence of the extent of uniform broadening of an amplification line on the generation spectrum of YAG : Nd laser The theoretical investigation given in the paper is directed towards the elucidation of the influence ofthe extent of uniform broadening of an amplification line on the generation spectrum of YAG : Nd laseroperating in the modes of the one-wavelength (1064,2 nm) and two-wavelength (1064,2 nm and 1061,5 nm)generations. The results obtained are compared with another ones presented in published literature. 621.373.826 wavelength YAG: Nd laser generation spectrum laser mode uniform broadening extent set of equations of Tang-Statz-Demars https://physmath.spbstu.ru/article/2014.23.6/ 06ph_1_2014edit.48_54.pdf

RAR RUS 55-60 Golovkov Oleg Ryazan State University named for S.A.Yesenin Stepanov Vladimir vl.stepanov@365.rsu.edu.ru Kuptsova Galina The rate consideration of relaxation transitions between sublevels of a multiplet in the generation spectrum of YAG:Nd-laser The two alternative forms of the Tang - Statz - DeMars system of equations are presented in the paper. The spectra of the multimode generation of YAG: Nd +3-laser are calculated assuming the Boltzmann distribution over the sublevels of the 4F3/2 multiplet and a specific rate of cross-relaxation transitions between those sublevels. The results obtained are compared with experimental data. 621.373.826 YAG: Nd-laser Boltzmann distribution generation spectrum Tang-Statz-Demars system ofequations multiplet sublevels https://physmath.spbstu.ru/article/2014.23.7/ 07ph_1_2014edit.55_60.pdf

RAR RUS 61-66 Petrov Victor Khomenko Anatoly Krinitsky Yakov Garcia Sarate Maria Alejandro Light pressure detection by two-wave mixing in the photorefractive BaTiO3:Co crystal The paper studies the high-sensitive detection of light radiation pressure using an adaptive interferometer based on photorefractive 45○-cut BaTiO3 : Co crystal. For small phase modulation measurement the authors employed a polarization filtering, which ensured the linear regime of signal detection in the photorefractive crystal with nonlocal response. It was demonstrated that the proposed method of light pressure measurement could be used as a broadband photodetector. It was experimentally found that the sensitivity was 2 µW in the wavelength range from 488 to 1600 nm. 535.41.111 adaptive holografic interferometer light pressure two-wavemixing photorefractive crystal high-sensitive detection broadband photodetector https://physmath.spbstu.ru/article/2014.23.8/ 08ph_1_2014edit.61_66.pdf

RAR RUS 67-78 Andronov Alexander andronov@rphf.spbstu.ru Secondary electron emission at very low electron energy A detailed review of experimental and theoretical studies of secondary electronemission (SEE) at low electron energies performed in the past has been given in this paper. It is shown that some present-day authors’ statement on increase of the SEE yield up to unity while the primary electron energy tends to zero does not have sufficient theoretical justification and is inconsistent with the numerous experimental data obtained for various materials. 537.533.9 secondary electron emission thermionic emission low primary energies electron reflection from potential barrier contact potential difference https://physmath.spbstu.ru/article/2014.23.9/ 09ph_1_2014edit.67_78.pdf

RAR RUS 79-90 Popugaeva Еlena lena.popugaeva@gmail.com Peter the Great St. Petersburg Polytechnic University Vlasova Olga olvlasova@yandex.ru O-7971-2016 7006214225 0000-0001-7006-6951 UT Southwestern Med Ctr, Dept Physiol Bezprozvanny Ilya mnlabspb@gmail.com

Dallas, USA

The role of intracellular calcium in the development of Alzheimer disease pathogenesis This article is a review and contains a brief description of the current state of research in the field of AD. The special attention is paid to the calcium hypothesis of AD, which is getting more popular and is an alternative hypothesis in relation to the dominant amyloid hypothesis of AD. The assumption of possible pathological pathway that takes place in AD is made basing on published and preliminary data. 612.82 Alzheimer disease calcium dendritic spine synapse two-photon microscopy https://physmath.spbstu.ru/article/2014.23.10/ 10ph_1_2014edit.79_90.pdf

RAR RUS 91-100 Peter the Great St. Petersburg Polytechnic University Vlasova Olga olvlasova@yandex.ru Plotnikova Polina plopolina@yandex.ru Bezrukova Alexandra bezr@pb1097.spb.edu Algorithm of realization of the experimental optical parametric methods for biological disperse systems analysis The article is devoted to the development and practical testing of the experimental and parametric optical methods for determining and comparing of liquid biological disperse systems on the basis of multiparametric optical analysis. 545.3;577.112.7 multiparametric analysis optical methods biological dispersion https://physmath.spbstu.ru/article/2014.23.11/ 11ph_1_2014edit.91_100.pdf

RAR RUS 101-107 Sabantsev Anton Fedechkin Stanislav 0000-0003-0562-0156 Peter the Great St. Petersburg Polytechnic University Khodorkovskii Mikhail khodorkovskii@gmail.com 0000-0003-0836-0732 Peter the Great St. Petersburg Polytechnic University Pobegalov Georgiy lwdrums@gmail.com Vedyaykin Alexey Smirnov Sergey Characterisation of villin domain 6 calcium-binding properties Using intrinsic protein fluorescence spectroscopy actin-regulating protein villin domain 6 calcium-binding properties were characterized. Acquired data suggests the presence of calcium-binding site in villindomain 6. The affinity of this calcium-binding site was estimated to be 32 µM, which suggested that the domain could be responsible for physiological transition of villin from bundling to severing actin filaments in response to the increase of intercellular calcium concentration. 577.322.7 villin intrinsic protein fluorescence cytoskeleton modular proteins https://physmath.spbstu.ru/article/2014.23.12/ 12ph_1_2014edit.101_107.pdf

RAR RUS 108-117 0000-0003-3298-3702 Peter the Great St. Petersburg Polytechnic University Ivanishchev Dmitry ivanishchev_da@pnpi.nrcki.ru Ivanov Alexey alexey.ivanov86@gmail.com 0000-0002-3395-0454 Peter the Great St. Petersburg Polytechnic University Kotov Dmitry dmitriy.kotov@gmail.com K* and ω-mesons production in d + Au collisions at 200 GeV Invariant transverse momentum spectra obtained for K*- and ω- mesons in d + Au collisions at 200 GeV have been presented. Comparison of the obtained results with existing measurements for π0-, Ks-, η-, η'- and φ-mesons have been made. The systematic study for light mesons production in central d + Au collisions have been carried out. 536.421 nuclei collisions mesons production light quarks analysis https://physmath.spbstu.ru/article/2014.23.13/ 13ph_1_2014edit.108_117.pdf

RAR RUS 118-123 Peter the Great St. Petersburg Polytechnic University Petrichenko Mikhail fonpetrich@mail.ru

Russia, 195251, St.Petersburg, Polytechnicheskaya, 29

Serov Dmitry dimusum@yandex.ru Complete and incomplete additive doubling variables in linear systems with constant coefficients Differential equations and their systems, not associated with any of the variational problems have been put forward to transform up to Hamiltonian form and immerse their solutions into a bundle of extremities. For small momenta the doubled system of the equations corresponds closely with the original one but for the equations in variations. Totally or partly additive doubled system of linear equations with constant coefficients has a Hamilton structure. For Jordan cells in the matrix of coefficients of the system complete and partial doubling correspond closely, with an accuracy up to a shift operator, which is representable in the basis of its own and associated vectors of a nilpotent matrix. 517.2 differential equation system of differential equations Jordan matrix complete algebraic and spectral multiplicity https://physmath.spbstu.ru/article/2014.23.14/ 14ph_1_2014edit.118_123.pdf

RAR RUS 124-135 Kondrashkov Anatoly ankon69@mail.ru Saint-Petersburg State University of Aerospace Instrumentation Pichugin Yuri yury-pichugin@mail.ru

Russia, 190000, St. Petersburg, Bolshaya Morskaya St., 61

On the identification and statistical testing stability of the Volterra model Some aspects of the Volterra model are considered in the paper. The emphasis is both on the determination of solution stability area in the space of model parameters and on statistical testing of stability. 517.968.22 Volterra model identification stability statistical testing https://physmath.spbstu.ru/article/2014.23.15/ 15ph_1_2014edit.124_135.pdf

RAR RUS 136-143 Rykshin Alexei alexey-r@yandex.ru Zatsepin Pavel zpm@phys.asu.ru Ulanov Petr ulanovpn@gmail.com The modeling of a short electromagnetic pulse scattering by dual layers structure using wavelet transform In the paper the problem of a short electromagnetic pulse scattering by dual dielectric layers structure has been considered. An incident field was generated by infinitely thread-like source of electric or magnetic current located parallel to the boundaries of layers. The solution was written through the Fourier transform with respect to the spatial coordinates and wavelet transform with respect to the time coordinate. Electromagnetic fields characteristics within the given structure and in the surrounding space were studied. 537.86 wavelet transform pulse scattering two-layer structure https://physmath.spbstu.ru/article/2014.23.16/ 16ph_1_2014edit.136_143.pdf

RAR RUS 144-149 Golubev Anatoliy agg300@mail.ru Smirnov Aleksey smalex77@mail.ru The calculation of a tolerable noise level for the receiving sectionin the underwater acoustic unit containing an antenna with fibre-optic hydrophones The dynamic range of the section for signals pre-processing in the underwater acoustic unit is conditioned by hydrophones sensitivity of the receiving antenna and by the internal noise level of operative assemblies composing the section. When we use a receiving antenna with interferometric fiber-optic hydrophones in that complement, optical and digital components are parts of the section. Our paper focuses on the calculation technique to get tolerable internal noise level reduced to the hydrophone input value. The technique is concerned with the underwater-acoustic unit containing receiving antenna with interferometric fiber-optic hydrophones. 623?983 interferometric fiber-optic hydrophone hydrophone sensitivity dynamic range internal noise analogue-digital converter spatial processing https://physmath.spbstu.ru/article/2014.23.17/ 17ph_1_2014edit.144_149.pdf

RAR RUS 150-156 Golubev Anatoliy agg300@mail.ru Molchanov Pavel pasha@kgfi.ru Estimation algorithms for impulse response of multibeam communication channel with transformation of the working frequency band In transmission messages, the prediction about the form of every information signal, as a rule, is carried out using response of communication channel on test impulses. To avoid errors in predictions of intersymbol interference it is useful to apply the jump of carrier frequencies from one test impulse to another one. In this case it is necessary to make an estimate of channel impulse response in frequency band of information signals from channel response on series of test impulses, which transmitted in different frequency bands. Our article focuses on the algorithms for this estimation. 621.391 multibeam communication channel test pulse estimation algorithm estimation error pulse response correlation autocorrelation function https://physmath.spbstu.ru/article/2014.23.18/ 18ph_1_2014edit.150_156.pdf

CHR RUS 157-163 Vasil'eva Maria Gavricova Tatiyana Zykov Valery zykov@rphf.spbstu.ru Ilyin Vladimir Peter the Great St. Petersburg Polytechnic University Shalygin Vadim shalygin@rphf.spbstu.ru Actual directions of semiconductor physics and nanostructures, semiconductor nano- and optoelectronics (on the 15th All-Russian Youth Conference) Short review of results of the conference is done. The works, recommended to practical using, are mentioned. 621 semiconductor physics nanoelectronics optoelectronics conference https://physmath.spbstu.ru/article/2014.23.19/ 19ph_1_2014Edit_157-163.pdf

CHR RUS 164-168 Morachevski Andrey morachevski@mail.ru Firsova Elena Professor Vladimir Efimovich Grum-Grzhimailo (on the occasionof his 150th birthday) The article is dedicated to the life and creative work of V.E. Grum-Grzhimailo (1864 - 1928), who was an outstanding Russian and Soviet inventor, a metallurgical engineer, a pedagogue and a production organizer. He also was a corresponding member of the Academy of Science of the USSR (elected in 1927). For 11 years he was a lecturer at St. Petersburg Polytechnical Institute. 001 + 41 metallurgical engineer Grum-Grzhimailo corresponding member of academy of science of the USSR SPBSPU https://physmath.spbstu.ru/article/2014.23.20/ 20ph_1_2014edit.164_168.pdf