Труды сотрудников ИВМ СО РАН

/ M. Desroche [et al.] // J. Geophys. Res-Space Phys. - 2012. - Vol. 117. - Ст. A07202, DOI 10.1029/2012JA017621. - Cited References: 50. - The authors thank Chris Arridge for initially suggesting this project. The authors are thankful to Adam Masters, Bob Ergun, Jack Gosling, Martin Goldman, and Dmitri Uzdensky for helpful discussions and guidance. This work was supported by NASA's NESSF program and JUNO mission. . - ISSN 0148-0227РУБ Astronomy & Astrophysics

Аннотация: Using idealized models of the magnetosheath and magnetosphere magnetic fields, plasma densities, and plasma flow, we test for the steady state viability of processes mediating the interaction between the solar wind and the Jovian magnetosphere. The magnetopause is modeled as an asymmetric paraboloid with variable asymmetry. The subsolar standoff of the magnetopause has been shown to exhibit a bimodal probability distribution (Joy et al., 2002). Only the expanded magnetopause is considered, with a standoff of similar to 90 R-J. We test where on the magnetopause surface large-scale reconnection may be affected by either a shear flow or diamagnetic drift due to a pressure gradient across the magnetopause boundary. We also test for the onset of the Kelvin-Helmholtz instability. We find that reconnection is inhibited on the dawn flank due to the large shear flows in this region, regardless of magnetopause shape or interplanetary magnetic field orientation. The presence of a high energy plasma population in the magnetosphere may inhibit reconnection over much of the magnetopause area, except when the fields are antiparallel. Additionally, most of the dawn flank of the magnetopause is Kelvin-Helmholtz unstable, regardless of magnetopause asymmetry; and the dusk flank tailward of the planet is Kelvin-Helmholtz unstable when the magnetopause is highly oblate.


Доп.точки доступа:
Desroche, M.; Bagenal, F.; Delamere, P.A.; Erkaev, N.V.; Еркаев, Николай Васильевич

/ N.Y. Shaparev // 2012 INTERNATIONAL CONFERENCE ON OPTOELECTRONICS AND MICROELECTRONICS (ICOM) : IEEE COMPUTER SOC, 2012. - International Conference on Optoelectronics and Microelectronics (ICOM) (AUG 23-25, 2012, Changchun, PEOPLES R CHINA). - pp. 342-345. - Cited References: 14 . - ISBN 978-1-4673-2639-1РУБ Engineering, Electrical & Electronic + Nanoscience & Nanotechnology + Optics

Аннотация: The paper deals with absorption of resonance and continuum radiation in an expanding gaseous sphere. For self-similar expansion, a probability of radiation to be transmitted is studied depending on the velocity gradient and optical thickness. It is shown that an optically thick medium grows thinner with the velocity gradient.

РИНЦ


Доп.точки доступа:
Шапарев, Николай Якимович

[Text] : статья / G. S. Yablonsky [et al.] // EPL. - 2011. - Vol. 93, № 2. - Ст. 20004DOI 10.1209/0295-5075/93/20004 . -
Аннотация: We study coupled irreversible processes. For linear or linearized kinetics with microreversibility, ẋ=Kx , the kinetic operator K is symmetric in the entropic inner product. This form of Onsager's reciprocal relations implies that the shift in time, exp(Kt), is also a symmetric operator. This generates the reciprocity relations between the kinetic curves. For example, for the Master equation, if we start the process from the i-th pure state and measure the probability pj(t) of the j-th state (j≠i), and, similarly, measure pi(t) for the process, which starts at the j-th pure state, then the ratio of these two probabilities pj(t)/pi(t) is constant in time and coincides with the ratio of the equilibrium probabilities. We study similar and more general reciprocal relations between the kinetic curves. The experimental evidence provided as an example is from the reversible water gas shift reaction over iron oxide catalyst. The experimental data are obtained using Temporal Analysis of Products (TAP) pulse-response studies. These offer excellent confirmation within the experimental error.

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Доп.точки доступа:
Yablonsky, G.S.; Gorban, A.N.; Горбань, Александр Николаевич; Constales, D.; Galvita, V.V.; Marin, G.B.

[Text] / A. V. Lapko, V. A. Lapko // Meas. Tech. - 2014. - Vol. 56, Is. 12. - P1354-1357, DOI 10.1007/s11018-014-0381-8. - Cited References: 9 . - ISSN 0543-1972. - ISSN 1573-8906РУБ Engineering, Multidisciplinary + Instruments & Instrumentation

Аннотация: A technique for the construction of confidence limits for the probability density function is proposed and its efficiency as a function of the probabilistic characteristics of the procedure of decomposition of the domain of variation of the random variable is investigated.

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Держатели документа:
[Lapko, A. V.] Russian Acad Sci IVM SO RAN, Inst Computat Modeling, Siberian Branch, Krasnoyarsk, Russia
[Lapko, V. A.] Academician Reshetnev Siberian State Aerosp Univ, Krasnoyarsk, Russia
ИВМ СО РАН

Доп.точки доступа:
Lapko, V.A.; Лапко, Василий Александрович; Лапко, Александр Васильевич

[] / A. V. Lapko, V. A. Lapko // Optoelectron. Instrum. Data Proces. - 2014. - Vol. 50, Is. 1. - P68-74, DOI 10.3103/S8756699014010099 . - ISSN 1934-7944
Аннотация: Asymptotic properties of a nonparametric estimate of the two-dimensional probability density of independent random variables are studied. Based on these results, the dependence of its efficiency on data incompleteness in the initial statistical information is determined. © 2014 Allerton Press, Inc.

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Держатели документа:
Institute of Computational Modeling, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, building 44, Krasnoyarsk, 660036, Russian Federation
Reshetnev Siberian State Aerospace University, pr. im. Gazety Krasnoyarskii rabochii 31, Krasnoyarsk, 660014, Russian Federation

Доп.точки доступа:
Lapko, V.A.; Лапко, Василий Александрович; Лапко, Александр Васильевич

[Text] / A. V. Lapko, V. A. Lapko // Meas. Tech. - 2014. - Vol. 57, Is. 3. - P. 222-227, DOI 10.1007/s11018-014-0435-y. - Cited References: 13. - This work was done in the framework of the basic part of the govenment task of the Ministry of Education and Science of the Russian Federation for institutions of higher education for 2014-2016 (Grant SibGAU No. B121/14). . - ISSN 0543-1972. - ISSN 1573-8906РУБ Engineering, Multidisciplinary + Instruments & Instrumentation

Аннотация: The approximation properties of a nonparametric estimate of probability density are studied for different methods of sampling the domain of definition. The indicators of the effectiveness of these methods are estimated.

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Держатели документа:
[Lapko, A. V.
Lapko, V. A.] Russian Acad Sci, Inst Comp Modelling, Siberian Branch, Krasnoyarsk, Russia
[Lapko, A. V.
Lapko, V. A.] Siberian State Aerosp Univ, Krasnoyarsk, Russia
ИВМ СО РАН

Доп.точки доступа:
Lapko, V.A.; Лапко, Василий Александрович; Лапко, Александр Васильевич; Ministry of Education and Science of the Russian Federation for institutions of higher education [B121/14]

/ A. V. Lapko, V. A. Lapko // Optoelectron. Instrum. Data Proces. - 2014. - Vol. 50, Is. 4. - P383-388, DOI 10.3103/S8756699014040098 . - ISSN 8756-6990
Аннотация: A new method of decomposition of the interval of the values of random variables based on results of optimization of the nonparametric estimate of the probability density of the Rosenblatt-Parzen type is proposed. Its application in the problem of testing the hypothesis of identity of the distribution laws of two sequences of one-dimensional random variables is considered.

Scopus

Держатели документа:
Institute of Computational Modeling, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, building 44Krasnoyarsk, Russian Federation
Reshetnev Siberian State Aerospace University, pr. im. Gazety “Krasnoyarskii rabochii” 31Krasnoyarsk, Russian Federation

Доп.точки доступа:
Lapko, V.A.; Лапко, Василий Александрович; Лапко, Александр Васильевич

/ A. P. Gavriluk, N. Ya. Shaparev // Opt. Commun. - 1981. - Vol. 39, Is. 6. - P379-382, DOI 10.1016/0030-4018(81)90227-3. - Cited References: 11 . - ISSN 0030-4018РУБ Optics

Аннотация: The propagation of the resonance electromagnetic wave accompanied by gas ionization is considered. Plasma is formed through initial associative processes followed by the action of electrons which gain energy when colliding with the excited atoms. The change in the nature of the radiation propagation results from both a decrease in the ground state atom density and an increase in the probability of the upper state atom de-excitation. Concrete estimates are made for cesium. The degree of gas ionization and the wave propagation velocity of transparency are calculated. В© 1981.

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Держатели документа:
Computing Center of the Siberian Branch of the USSR, Academy of Sciences, Krasnoyarsk, USSR, 660049
ИВМ СО РАН

Доп.точки доступа:
GAVRILUK, A.P.; Гаврилюк, Анатолий Петрович; Shaparev, N.Ya.; Шапарев, Николай Якимович

/ T. N. Ivanilova // Annual Review in Automatic Programming. - 1985. - Vol. 12, Is. PART 2. - P185-188 . - ISSN 0066-4138
Аннотация: Average measure simulation of forest fire spread is one of the applications of set probability theory. Probability spread calculations are carried out using set identification methods of a model of random spread, taking into account initial data of fire condition in a present moment of time we get prognosis - average measure fire contour - in any post coming moment of time. В© 1985.

Scopus

Держатели документа:
Computer Center, SB AS USSR, Krasnoyarsk, 660036, USSR
ИВМ СО РАН

Доп.точки доступа:
Ivanilova, T.N.

/ N. A. Makhutov, I. I. Koksharov, A. M. Lepikhin // Strength of Materials. - 1992. - Vol. 23, Is. 5. - P481-488, DOI 10.1007/BF00771443 . - ISSN 0039-2316
Аннотация: Methods used to calculate the reliability indices of structural components (the distribution function of remaining life, the probability of failure-free service, and the risk function) as applies to problems of the propagation of defects under a cyclic load are examined. The potentials of the method of "numeric experiments" are demonstrated in an example of the calculation of crack kinetics in a branch pipe in tension with bending. The reliability indices are calculated for a plane element with a crack by means of numeric integration of determining equations. It is possible to solve problems with different laws governing crack propagation and forms of density distribution for the size of the initial defect within the framework of these methods. A combination of approaches of fracture mechanics and reliability theory with numeric methods of calculation make it possible to evaluate the reliability indices of a defective structural component. В© 1992 Plenum Publishing Corporation.

Scopus

Держатели документа:
A. A. Blagonravov Institute of Machinery, Academy of Sciences of the USSR, Moscow, Russian Federation
Computer Center, Siberian Branch, Academy of Sciences of the USSR, Krasnoyarsk, Russian Federation
ИВМ СО РАН

Доп.точки доступа:
Makhutov, N.A.; Махутов, Николай Андреевич; Koksharov, I.I.; Кокшаров, Игорь Ильич; Lepikhin, A.M.; Лепихин, Анатолий Михайлович

/ I. I. Koksharov // Mech. Compos. Mater. - 1996. - Vol. 32: IX International Conference on the Mechanics of Composite Materials (OCT, 1995, RIGA, LATVIA), Is. 4. - P374-380, DOI 10.1007/BF02254751. - Cited References: 14 . - ISSN 0191-5665РУБ Mechanics + Materials Science, Composites + Polymer Science

Аннотация: In the present work, interest is centered on the theory of fracture and practical approaches to reliability estimation of unidirectional composite materials which are based on it. Fracture mechanics is considered not as a theory of macrocracks but as mechanics of fracture mechanisms of the composites with allowance made for probability estimation. A model of composite material with fibers eliminated from the carrying scheme and parameters specific to the stress-strain-damage state (SSDS) was considered. According to the model, during loading, self-accelerated energy rise is accounted for by structural damages growth - the catastrophe takes place. The model allows us to calculate the critical stress. The composites redistribute forces from overloading zones to neighboring ones by microstructural deformations and damages. It is the effect of reservation of carrying ability. Due to this effect, low-value probability of fracture is sufficiently less for the composite than for homogeneous materials. The approach allows us to evaluate the reliability function for Both static loading and fatigue.

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Scopus

Держатели документа:
Computing Center, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
ИВМ СО РАН

Доп.точки доступа:
Koksharov, I.I.; Кокшаров, Игорь Ильич

[Text] / A. V. Lapko, V. A. Lapko // Meas. Tech. - 2013. - Vol. 56, Is. 7. - P. 763-767, DOI 10.1007/s11018-013-0279-x. - Cited References: 7 . - ISSN 0543-1972РУБ Engineering, Multidisciplinary + Instruments & Instrumentation

Аннотация: The asymptotic properties of the regression estimator of the probability density, synthesis of which presupposes decomposition of statistical data, are studied. The dependence of the number of sampling intervals on the volume of original data is determined on the study.

WOS

Держатели документа:
[Lapko, A. V.
Lapko, V. A.] Russian Acad Sci IVM SO RAN, Inst Computat Modeling, Siberian Branch, Krasnoyarsk, Russia
ИВМ СО РАН

Доп.точки доступа:
Lapko, V.A.; Лапко, Василий Александрович; Лапко, Александр Васильевич

[Text] / N. Y. Shaparev // J. Phys. B-At. Mol. Opt. Phys. - 2014. - Vol. 47, Is. 22. - Ст. 225401, DOI 10.1088/0953-4075/47/22/225401. - Cited References: 11 . - ISSN 0953-4075. - ISSN 1361-6455РУБ Optics + Physics, Atomic, Molecular & Chemical

Аннотация: The paper deals with absorption of external continuum radiation in a self-similarly expanding gaseous sphere. Frequency probability and integral probability of radiation absorption in the resonance frequency range are determined depending on the expansion velocity gradient and thickness of the optical medium. It is shown that expansion results in a reduced optical thickness of the medium and enhanced integral absorption.

WOS

Держатели документа:
Russian Acad Sci, Inst Computat Modeling, Krasnoyarsk 660036, Russia
ИВМ СО РАН

Доп.точки доступа:
Шапарев, Николай Якимович

/ A. Shevyrgonov, G. Vysotskaya, E. Shevyrgonov // Advances in Space Research. - 2002. - Vol. 30, Is. 11. - P. 2541-2546, DOI 10.1016/S0273-1177(02)80334-9 . - ISSN 0273-1177
Аннотация: The work presents long-standing CZCS-satellite-based data about spatial distribution of anomalies in chlorophyll concentration and temperature of the ocean. An anomaly criterion is proposed. Maps of Atlantic ocean areas with elevated probability of anomalies are given. Properties of anomalous zones in different parts of the Atlantic ocean are discussed. Satellite-based maps of anomaly coefficients for chlorophyll concentration and temperature in the Atlantic ocean have been shown to feature substantial differences, the zones of elevated anomaly of chlorophyll concentration and temperature - to be close only in the vicinity of the Amazon outflow into the Atlantic ocean. Along with fundamental knowledge about dynamics of biological phenomena in the ocean the methods described may be used to reveal deviations due to anthropogenic impact. The methods presented may be used to process SeaWiFS prograna data. The data derived may be used to analyze long-standing time series to estimate randomness of cunent changes. В©2002 COSPAR. Published by Elsevier Science Ltd. All rights reserved.

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Доп.точки доступа:
Shevyrgonov, A.; Vysotskaya, G.; Высоцкая, Галина Степановна; Shevyrgonov, E.

/ A. V. Lapko, V. A. Lapko // Meas. Tech. - 2014. - Vol. 57, Is. 7. - P740-744, DOI 10.1007/s11018-014-0529-6 . - ISSN 0543-1972
Аннотация: The choice of an optimal number of sampling intervals in the domain of definition of the probability density is studied as a function of the antikurtosis coefficient. Quantitative relationships between the sampling coefficient and the antikurtosis are found for symmetric and nonsymmetric distributions. Their features are analyzed for different utilization conditions. © 2014, Springer Science+Business Media New York.

Scopus

Держатели документа:
Institute of Computational Modelling, Siberian Branch of the Russian Academy of SciencesKrasnoyarsk, Russian Federation
Reshetnev Siberian State Aerospace UniversityKrasnoyarsk, Russian Federation
ИВМ СО РАН

Доп.точки доступа:
Lapko, A.V.; Лапко, Александр Васильевич; Lapko, V.A.; Лапко, Василий Александрович

/ A. V. Lapko, V. A. Lapko // Optoelectronics, Instrumentation and Data Processing. - 2014. - Vol. 50, Is. 2. - P148-153DOI 10.3103/S875669901402006X . -
Аннотация: A method of synthesis and analysis of regression estimate of the multidimensional probability density under conditions of a large volume of initial statistical data is proposed. Its asymptotic properties are investigated. On this basis, the relationship between the efficiency factor of the proposed estimate and the parameters of the procedure of expansion of initial data is established.

Scopus


Доп.точки доступа:
Lapko, V.A.; Лапко, Василий Александрович; Лапко, Александр Васильевич

/ A. V. Lapko, V. A. Lapko // 2015 International Siberian Conference on Control and Communications, SIBCON 2015 - Proceedings. - 2015. - 2015 International Siberian Conference on Control and Communications, SIBCON 2015 (21 May 2015 through 23 May 2015, ) Conference code: 113590, DOI 10.1109/SIBCON.2015.7147119 . -
Аннотация: A technique for the construction of confidence limits for the multi-dimensional probability density function is proposed and its efficiency as a function of the probabilistic characteristics of the procedure of decomposition of the domain of variation of the random variable is investigated. © 2015 IEEE.

Scopus

Держатели документа:
Siberian Branch of the Russian Academy of Sciences, Institute of Computer Modelling, Krasnoyarsk, Russian Federation
Ministry of Education and Science of the Russian Federation, Siberian State Aerospace University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Lapko, V.A.; Лапко, Василий Александрович; Лапко, Александр Васильевич

/ A. V. Lapko, V. A. Lapko // Measurement Techniques. - 2015, DOI 10.1007/s11018-015-0741-z . - ISSN 0543-1972
Аннотация: A method is proposed for comparing the efficiencies of procedures for sampling the range of values of a random quantity when estimating the probability density. The criterion of efficiency is taken to be an asymptotic expression for the mean square deviation of a regression fit for the probability density. © 2015 Springer Science+Business Media New York

Scopus,
WOS

Держатели документа:
Institute of Computational Modeling, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Lapko, V. A.; Лапко, Василий Александрович; Лапко, Александр Васильевич

[Текст] : статья / А. В. Лапко, В. А. Лапко // Измерительная техника. - 2015. - № 5. - С. 10-14 . - ISSN 0368-1025

УДК

519.24

Аннотация: Предложена методика сравнения эффективности процедур дискретизации интервала значений случайной величины при оценивании плотности вероятности. В качестве критерия эффективности использовано асимптотическое выражение среднеквадратического отклонения регрессионной оценки плотности вероятности.
The comparison procedure for the effectiveness of methods for discretization of the interval of values of a random variable at probability density estimation has been saggested. As an efficiency criterion the asymptotic expression of standard deviation of regression model of probability density has been used.

РИНЦ

Держатели документа:
Институт вычислительного моделирования СО РАН
Сибирский государственный аэрокосмический университет им. акад. М. Ф. Решетнева

Доп.точки доступа:
Лапко, Василий Александрович; Lapko V.A.; Lapko A.V.

[Текст] : статья / А. В. Лапко, В. А. Лапко // Информатика и системы управления. - 2015. - № 3. - С. 84-88 . - ISSN 1814-2400
   Перевод заглавия: THE ANALYSIS OF EFFICIENCY OF DECOMPOSITION METHODS OF MEASUREMENTS INTERVAL OF THE RANDOM VARIABLE AT A PROBABILITY DENSITY ESTIMATION

УДК

519.24

Аннотация: Определяется количественная зависимость аппроксимационных свойств непараметрической оценки плотности вероятности от методов дискретизации интервала измерений случайной величины. Исследуется ее особенность от объема исходных статистических данных и вида восстанавливаемой плотности вероятности.
Determined by quantitative dependence approximation properties of nonparametric estimation of the probability density of decomposition methods of measurements interval of the random variable. Its singularity from volume of initial statistical data and an aspect of a restored probability density is investigated.

РИНЦ

Держатели документа:
Институт вычислительного моделирования СО РАН
Сибирский государственный аэрокосмический университет имениакадемика М.Ф. Решетнева

Доп.точки доступа:
Лапко, Василий Александрович; Lapko V.A.; Lapko A.V.