Home > Contribution List
Displaying 216 contributions out of 216
Traditional latency-limited trigger architectures, typical for conventional experiments with a hardware trigger, are inapplicable for CBM. Instead, the experiment will ship and collect time-stamped data into a readout buffer in a form of a time-slice of a certain length with no isolated collisions, and deliver it to a large computer farm, where online event reconstruction and selection will be per ... More
Presented by Ms. Valentina AKISHINA on 7 Jul 2017 at 14:00
We present a new algorithm for computing covariant power expansions of tensor fields in generalized Riemannian normal coordinates introduced in some neighborhood of a parallelized k-dimensional embedded submanifold the case corresponds to a point. The algorithm is applicable for nonmetric connections, possibly with the torsion. The power series coefficients of an arbitrary real analytic tensor ... More
Presented by Alexander TSIRULEV on 4 Jul 2017 at 14:30
The multiplicity of a weight of an irreducible finite-dimensional representation of a complex semisimple Lie algebra can in principle be evaluated by using the celebrated Kostant multiplicity formula, which employs summation of values of Kostant partition function over the Weyl group of the algebra. While Kostant’s formula is quite elegant, it is usually not suitable for computations due to th ... More
Presented by Dr. Anatoli LOUTSIOUK on 7 Jul 2017 at 13:45
Fully automatic processing of satellite data is a dream for every space weather scientist. In fact, a streamlined scientific workflow system that can process satellite data automatically and track the details of the data processing history is critical for the efficient handling of fundamental routines used in space weather research. The information that describes the details of data processing his ... More
Presented by Mr. Minh Duc NGUYEN on 7 Jul 2017 at 16:30
Session: Plenary
We propose a practical way to simulate multi-atomic systems without using of wave functions (orbitals). Our approach is based on the theoretical concept of the last years (FTT 2012, Sarry AM, Sarry MF; JETP 2013, Bobrov VB, Trigger SA) claiming that the universal functional of kinetic energy does not exist. We construct kinetic functionals for each type of atoms and then use them for complex syste ... More
Presented by Prof. Victor ZAVODINSKY
The separated form factors method (SFF) is an effective approach to obtain information about a structure of vesicular systems from the small angle scattering data. Parameters of vesicular system are determined by means of minimization of a discrepancy between experimental data on intensity of small angle scattering and the results of respective SFF-based calculations. The minimization procedure is ... More
Presented by Mr. Maksim BASHASHIN on 6 Jul 2017 at 15:45
The new harmonic oscillator (HO) expansion method [1] is applied to calculate non-relativistic ground state energy of a number of Coulomb three-particle systems with two identical particles for up to 28 excitation HO quanta. The novelty of the method is the introduction of different size parameters in the Jacobi coordinates instead of only one unique oscillator length parameter in the traditional ... More
Presented by Dr. Algirdas DEVEIKIS on 3 Jul 2017 at 16:45
Session: Poster Session
The work is devoted to the development of algorithms for control of robot swarms. The complexity of this problem lies in the fact that we should program the behavior (identical) of the individual robot, and the programming goal is the collective behavior of the entire swarm. At the same time, there are a number of search-type problems, for example, the problem of finding the source of pollution, w ... More
Presented by Mr. Mikhail RAPORTIRENKO on 3 Jul 2017 at 18:00
Session: Plenary
Presented by Oleg BELOV on 4 Jul 2017 at 10:30
We propose an algorithm for the orthogonal fast discrete spherical Bessel transform on a uniform grid. Our approach is based upon the spherical Bessel transform factorization into the two subsequent orthogonal transforms, namely the fast Fourier transform and the orthogonal transform founded on the derivatives of the discrete Legendre orthogonal polynomials. The method utility is illustrated by it ... More
Presented by Dr. Vladislav SEROV on 4 Jul 2017 at 15:15
Development of mathematical fundamentals and software for simulation of complex fluid flows in the subsurface is one of urgent tendencies of industrial mathematics. Among applications of such flow modeling there are oil-and-gas industry problems, in particular, the development of perspective hydrocarbon recovery technologies, as well as ecological problems concerning the soil and groundwater conta ... More
Presented by Dr. Marina TRAPEZNIKOVA on 3 Jul 2017 at 17:00
When modeling different physical and technical systems, they can often be modeled in the form of one-step processes. Our group has been developing a formalism of stochastization of one-step processes for quite a long time. We investigated a variety of representations of both the one-step processes, and methods of their stochastization. We have considered representations in the state vectors (combi ... More
Presented by Dr. Dmitry KULYABOV on 7 Jul 2017 at 16:30
Session: Plenary
The Dubna Gas-Filled Recoil Separator is the most advanced facility currently in use in the field of research of Superheavy Nuclei (SHN) [1]. During last year’s, IUPAC established the priority of the DGFRS experiments in the discovery of new Z=114-118 elements. Definitely, the DGFRS detection system and method of “active correlations” have played a significant role in these discoveries [2-4] ... More
Presented by Mr. Yury TSYGANOV on 7 Jul 2017 at 10:30
In particle accelerator physics the problem is that we can not see what is going on inside the working machine. There are a lot of packages for modelling the behaviour of the particles in numerical or analytical way. The idea is to provide scientists with a problem-solving environment, which can not only do some numerical calculations, but show the changes of the particle distribution as a motion ... More
Presented by Ms. Nataliia KULABUKHOVA on 6 Jul 2017 at 16:45
This paper proposes an analitical method for approximating experimental data points X*(j) by the curves representing the solutions of linear difference equations with constant coefficients, in particular, by the curves of the exp*cos class (for the second-order equation - in form of X(j) = c1 • X(j – 1) + c2 • X(j – 2) + b). As for coeffitients of such approximation (c1, c2 and b) - t ... More
Presented by Mr. Vladimir SMIRNOV on 6 Jul 2017 at 18:00
The field theoretic renormalization group and the operator product expansion are used for the investigation of the inertial-range anomalous scaling behaviour of the single-time correlation functions of the weak magnetic field within the framework of the compressible Kazantsev-Kraichnan rapid change model with spatial parity violation of the corresponding conductive turbulent environment. Two-loop ... More
Presented by Mr. Martin MENKYNA on 3 Jul 2017 at 16:30
Modern numerical modeling experiments and data analytics problems in various fields of science and technology reveal wide variety of serious requirements for distributed computing systems. Many scientific computing projects sometimes exceed allowed resource pool limits, requiring extra scalability and sustainability. In this paper we share the experience and findings of our own on combining power ... More
Presented by Mr. Vladislav KASHANSKY on 4 Jul 2017 at 16:30
In this paper, we developed a methodology for the medium-term prediction of daily volumes of passenger traffic in the Moscow Metro. It includes three variants of the forecast: 1) on the basis of artificial neural networks: a multilayer perceptron (MLP) was used, on the input of which a set of factors affecting the daily volume of passenger transportation was supplied; 2) using the singular-spectr ... More
Presented by Mr. Evgeny OSETROV, Prof. Victor IVANOV on 4 Jul 2017 at 17:15
Methods of machine learning and data mining are widely used now in many tasks of physics, chemistry, biology, medicine and in some other areas. Such techniques allow to obtain reliable results in poorly formalized areas. The last several years we used these methods for search of regularities in panel data of the statistical indicators, characterizing the institutional economy of different countri ... More
Presented by Mr. Igor KIRILYUK, Anna KUZNETSOVA on 6 Jul 2017 at 15:15
The report is devoted to numerical evaluation of mathematical expectations of functionals defined on trajectories of stochastic processes. Our approach is to use quadrature formulas exact for functional polynomials of the trajectories of the process, as it was considered in [1,2]. Construction of this type of formulas is strongly dependent on way of giving the stochastic process. In [1,2] the quad ... More
Presented by Prof. Alexandr EGOROV on 3 Jul 2017 at 14:45
Nowadays the exponential growth of the amount of experimental data can be observed. While there was 1-10 Tb of data per year in astrophysics 10-15 years ago, new experimental facilities generate data sets ranging in size from 100’s to 1000's of terabytes per year. It's obvious that various activities must be performed continually across all stages of the data life cycle to help support effect ... More
Presented by Dr. Alexander KRYUKOV on 6 Jul 2017 at 15:30
Algorithmic complexity is a very important topic in computer science. Knowing the complexity of algorithms allows you to answer questions such as "How long will a program run on an input?", "How much space will it take?" and "Is the problem solvable?". These are important bases of comparison between different algorithms. An understanding of algorithmic complexity provides programmers with insight ... More
Presented by Mr. Pavel LYUBIN, Dr. Eugeny SCHETININ on 4 Jul 2017 at 16:45
To describe models where the intensity of the interaction between components depends on the concentration of a component, one can use the scheme of interaction from chemical kinetics: \[ \sum\limits^{n}_{i=1}N^{s}_{i}X_{i} \xleftrightarrow[\;\;k^{-}_{s}\;\;]{\;\;k^{+}_{s}\;\;} \sum\limits^{n}_{i=1}M^{s}_{i}X_{i},\; s = 1,\ldots,S. \] Here $X_{i}$ represents the number $i$-th component, matrice ... More
Presented by Ms. Anastasya DEMIDOVA, Mr. Migran GEVORKYAN on 7 Jul 2017 at 15:30
The BM@N experiment is the crucial stage in the technical development of the NICA project. In order to effectively maintain experiment it is extremely important to have uniform for all detectors, fast and convenient tool to monitor experimental facility. The system implements decoding of the incoming raw data on the fly, preprocessing and visualization on the webpage. Users can monitor any ... More
Presented by Mr. Ilnur GABDRAKHMANOV on 7 Jul 2017 at 16:15
By a reevaluation of the grandcanonical partition function, we show that the phenomenology of the BCS model is much richer than previously known: the phase transition may be discontinuous (the energy gap has a jump at the phase transition temperature), there may be two solutions for the energy gap at the same temperature, etc. We present both zero temperature [1] and finite temperature results [2] ... More
Presented by Dr. Dragos-Victor ANGHEL on 6 Jul 2017 at 15:00
In q-deformed geometry braded zeta functions for any rigid object in a ribbon braided category have defined by Majid and Tomasic, and others. By the category of realizations multiple zeta values have defined by Goncharov, by Furusho, by Unver and other. In the communication we present ontology and computer algebraic aspects of braded and multiple zeta functions.
Presented by Prof. Nikolaj GLAZUNOV
One of the most effective instantaneous cardiac rhythm (ICR) imaging methods is application of extended phase space (EPS) of ICR. In this space, the ICR state is described by a point in the with coordinates where – ICR rate, – ICR change rate, – retry equal values y and v in different time moments. We wrote down and implemented the MAPLE programs allowing the real-time monitorin ... More
Presented by Mr. Dmitry LEBEDEV on 7 Jul 2017 at 13:30
For certain modular algorithms, the modulus need not be a prime, and implementers are left with more freedom to choose moduli. One suggestion, made by Knuth [3], is to use integers of the form A similar choice is Numbers of these forms are Cunningham numbers for the special case of the base We discuss suitability of these types of moduli for standard computer algebraic modular algorithms. Diff ... More
Presented by Dr. Eugene ZIMA on 6 Jul 2017 at 14:45
on 7 Jul 2017 at 18:00
The modern scientific research requires careful modeling of experiments, as well as the fast and qualitative processing of a large amount of data. Under that the comparison of the used models and the optimization of the program code are performed. Optimization implyes both algorithmic code improvement and the usage of high-performance and parallel technologies. In high-energy physics, the standar ... More
Presented by Dr. Tatiana SOLOVJEVA on 7 Jul 2017 at 17:00
Session: Poster Session
Linear time-invariant fractional-order systems with lumped parameters considered in several cases, which differ from each other by fractional derivative type in system dynamics equation. The Caputo, Riemann-Liouville and Hadamard derivatives used. Two kinds of optimal control problem are investigated: the problem of control with minimal norm and the problem of control with minimal time at given re ... More
Presented by Sergey POSTNOV on 3 Jul 2017 at 18:00
Owing to recent advances in accelerator and storage ring techniques, more possibilities arise to study formation of quasi-molecules in slow heavy-ion collisions. Today, these (quasi) molecules are believed to be a versatile tool for investigating a number of fundamental problems in modern physics. In particular, analysis of molecular spectra can provide unique knowledge on the relativistic, many-b ... More
Presented by Prof. Andrey SURZHYKOV on 4 Jul 2017 at 17:45
We present a project devoted to a development of a reliable, secure, and convenient dispersed storage system for private data on public resources in the Internet based on peer-to-peer (P2P) networks [1,2], as an alternative to centralized solutions, including clouds. Novelty of the offered project is the research of the behavior of dispersed storage system (DSS) and determining the optimal paramet ... More
Presented by Dr. Stanislav POLYAKOV on 4 Jul 2017 at 15:00
Will be presented the computer algebra algorithms of simplification of tensor expressions which based on group-theoretical properties of tensor monoms and multilinear identities like Bianchi.
Presented by Dr. Alexander KRYUKOV on 7 Jul 2017 at 16:45
In this paper the author will talk about the problem of computing involutive bases and Gröbner bases of linear systems of difference equations, its importance, applicability for physical and mathematical problems and the algorithm for solving it. An implementation of the computation algorithm in C will be presented, calculation times will be compared with the competing programs. The parallel ver ... More
Presented by Mr. Denis YANOVICH on 7 Jul 2017 at 14:45
The development of computer technology greatly expanded the possibilities of computational experiment. At the present stage it is already possible to study the properties and processes in complex systems at the molecular and even atomic level, for example, by the means of molecular dynamics (MD). The most interesting are problems related with the study of complex processes under real physical cond ... More
Presented by Mr. Sergey MARKIZOV on 4 Jul 2017 at 15:30
The following contemporary problems of mathematical modelling of unique structures, buildings and complexes are under consideration: modeling of interaction of buildings and structures with a foundation with allowance for real properties, stage-by-stage construction and actual operation history; structural analysis with allowance for physical, geometrical and other nonlinearities; structural analy ... More
Presented by Prof. Alexander BELOSTOTSKY on 3 Jul 2017 at 14:30
It is created the minimal development environment for computer algebra systems AXIOM, REDUCE and MAXIMA, which includes compilers from С and FORTRAN, standard libraries libc, libm, ..., utilities lex, yacc, awk, ..., and COMMON LISP interpreter, which is complete and closed. It is based on sources of libraries and compilers of the middle of 90-th, available in internet and belonging to cla ... More
Presented by Dr. A. RAPORTIRENKO on 7 Jul 2017 at 17:15
The Dynamic Deployment System (DDS) is a tool-set that automates and significantly simplifies a deployment of user-defined processes and their dependencies on any resource management system (RMS) using a given topology. A number of basic concepts are taken into account in DDS. Namely, DDS implements a single responsibility principle command line tool-set and APIs. The system treats users’ tas ... More
Presented by Andrey LEBEDEV on 6 Jul 2017 at 17:15
Protein-protein interactions are of central importance for virtually every process in living matter. Simulation of protein association dynamics is crucial for understanding their functionality. In Brownian dynamics proteins are considered as rigid bodies subjected to electrostatic and random Brownian forces. This rough approximation is rather accurate when protein surfaces do not touch each other, ... More
Presented by Mr. Sergei KHRUSCHEV on 4 Jul 2017 at 17:15
Session: Poster Session
Our research is related to the problems of predicting the spatial structure of polypeptide molecules and their complexes. Our approach is based on the solution of the corresponding optimization problem, in which the objective function is the potential energy of the corresponding atomic ensemble, and the parameters of optimization are such geometric characteristics as bond lengths, valence and tors ... More
Presented by Mr. Maxim BYSTROV on 3 Jul 2017 at 18:00
The CBM (Compressed Baryonic Matter) experimental facility that is being built at GSI (Darmstadt, Germany) at the accelerator complex of antiprotons and heavy ions FAIR (Facility for Antiproton and Ion Research) is intended for studying the properties of superdense baryonic matter generating in 2-45 GeV/nucleon proton-nuclear and nucleus-nucleus collisions [1]. At the current moment, the CBM coll ... More
Presented by Dr. Elena AKISHINA on 6 Jul 2017 at 17:30
Consider a waveguide of a constant simply connected cross-section $S$ with ideally conducting walls. The axis $Oz$ is directed along the cylinder axis, the normal to $\partial S$ will be denoted as $\vec n$, the tangent vector perpendicular to $\vec e_z$ as $\vec \tau$. Let the filling $\epsilon$, $\mu$ of this waveguide have the jump at $z=0$ so this plane is the joint of two waveguide. For a whi ... More
Presented by Д-р. Mikhail MALYKH on 7 Jul 2017 at 14:15
One of the most important characteristics of diffusion processes in fluids is the Prandtl number as a ratio of the coefficient of kinematic viscosity to the coefficient of the corresponding diffusivity. The numerical values of various Prandtl numbers, in general, depend on the microscopic structure of the fluids at low Reynolds numbers. The situation changes when the Reynolds numbers obtain very h ... More
Presented by Dr. Richard REMECKY on 4 Jul 2017 at 15:30
Session: Plenary
The present report discusses a Bayesian automatic adaptive quadrature (BAAQ) solution for numerical integration which is simultaneously robust, reliable, and efficient, hence able to yield guaranteed output in numerical experiments involving sudden unexpected modifications of the behavior of the integrand function. An essential ingredient of the solution is the multiscale approach [1]. Within it, ... More
Presented by Prof. Gheorghe ADAM on 5 Jul 2017 at 10:00
Session: Plenary
Dynamical properties of electron motion in molecular chains are considered. The charge motion is described in terms of quantum mechanics, whereas vibrational degrees-of-freedom are treated both classically and quantum mechanically. The dynamics of charge migration was modeled to calculate temperature dependencies of its thermodynamic equilibrium values such as energy and electronic heat capacity ... More
Presented by Prof. Victor LAKHNO on 4 Jul 2017 at 09:30
Session: Plenary
In the framework of the theory of open systems based on completely positive quantum dynamical semigroups, we make a comparison of the behaviour of continuous variable quantum correlations (quantum entanglement, entropic quantum discord, geometric quantum discord, quantum steering) for a system consisting of: 1) two non-coupled; 2) two coupled bosonic modes embedded in a common environment of the f ... More
Presented by Prof. Aurelian ISAR on 6 Jul 2017 at 09:00
The method of construction of bound systems (deuteron, pion) based on the separable kernels of interaction is discussed. Also the work describes а way of studying the EM characteristics of such the systems, including elastic form factors. The questions of gauge-invarience are discussed. Comparison with the experimental data is carried out.
Presented by Dr. Serge BONDARENKO, Mr. Artem BEKZHANOV on 3 Jul 2017 at 17:30
Research in the field of materials irradiation by high energy heavy ions (HEHI) has been actively made for several decades. The experiments in this area are labor-consuming and expensive. Therefore the improvement of existing mathematical models and the development of new ones based on the experimental data of interaction of HEHI with materials is of current interest. Currently, there are used two ... More
Presented by Mr. Zarif SHARIPOV on 4 Jul 2017 at 14:45
Session: Poster Session
A class of models of heat transfer processes in a multilayer domain was considered. The governing equation (GE) is a nonlinear heat-transfer equation with different temperature-dependent densities and thermal coefficients in each layer. Homogeneous Neumann boundary conditions and ideal contact ones were applied. The aim of this research was to build a finite difference scheme on an uneven mesh wit ... More
Presented by Ms. Milena VENEVA on 3 Jul 2017 at 18:00
E.I.Kuznetsova¹, I.D.Lazarev²˒¹ 1Institute of Problems of Chemical Physics of RAS, Chernogolovaka, 142432,Moscow Region, Russia 2Lomonosov Moscow State University, Faculty of Fundamental Physical and Chemical Engineering, 119991, Moscow, Russia We investigate quantum state transfer [1] and quantum entanglement [2], emerging in this process, in spin chains. We consider a quantum system, c ... More
Presented by Ms. Elena KUZNETSOVA, Mr. Ilya LAZAREV on 6 Jul 2017 at 17:00
A magnetostatic problem arises in searching for the distribution of the magnetic field generated by magnet systems of many physics research facilities, e.g., accelerators. The domain in which the boundary-value problem is solved often has a piecewise smooth boundary. In this case, numerical calculations of the problem require the consideration of the solution behavior in the corner domain. Base ... More
Presented by Mr. Aleksandr TARELKIN on 3 Jul 2017 at 15:00
Einstein-Podolsky-Rosen steerability of quantum states is a property that is different from entanglement and Bell nonlocality. We describe the time evolution of a recently introduced measure that quantifies steerability for arbitrary bipartite Gaussian states in a system consisting of two bosonic modes embedded in a common squeezed thermal environment. We work in the framework of the theory of op ... More
Presented by Ms. Tatiana MIHAESCU on 6 Jul 2017 at 18:00
We consider a problem of extrapolating functions of several variables. It is assumed that the values of the function of m variables are given at a finite number of points in some domain D of the m-dimensional space. It is required to restore the value of the function at the points outside the domain D. To solve the extrapolation problem, we propose a scheme which is based on a metric analysis appr ... More
Presented by Mr. Alexander KRYANEV, Mr. Victor IVANOV, Mr. Leonid SEVASTYANOV, Mr. David UDUMYAN on 3 Jul 2017 at 14:30
We present ultrahigh resolution data on single ionization of helium under impact of 1-MeV protons in comparison with theoretical calculations. Good agreement between theory and experiment is obtained. Three initial trial helium wave functions are employed: a weakly correlated Roothaan-Hartree-Fock function, a simple Silverman-Platas-Matsen function of the configuration interaction family, and a st ... More
Presented by Dr. Ochbadrakh CHULUUNBAATAR on 4 Jul 2017 at 17:15
The process of plastic flow localization in hollow cylinder which is made from high-strength steel undergoing the torsion deformation is considered. The mathematical model of the process of plastic flow localization is formulated taking into account the cylindrical symmetry of the problem. The transition of the proposed model to a mathematical model describing the processes of plastic flow localiz ... More
Presented by Rodion MURATOV, Mr. Pavel RYABOV on 6 Jul 2017 at 15:30
Session: Poster Session
Presented by S. POPKOV on 3 Jul 2017 at 18:00
We are studying the process of global synchronization in systems with control. As a control system, we study the continuous model of the active control module of the type RED [1-3]. We apply the method of harmonic linearization. To simplify the model, we applied the following: the model is written in moments; The model describes only the phase of avoiding overloading of the TCP Reno protocol; In t ... More
Presented by Dr. Dmitry KULYABOV on 7 Jul 2017 at 16:00
Modern development of computer science revived the old investigations about the solvability of differential equations in the finite terms. There are remarkable differential equations which can be integrated in CAS. In our work we want to speak about remarkable differential equations in another sense: for these equations there are finite difference schemes which conserve algebraic properties of sol ... More
Presented by Д-р. Mikhail MALYKH on 7 Jul 2017 at 14:00
The exact analytical lattice results for the partition function of the free neutral scalar field in one spatial dimension in both the configuration and the momentum space were obtained in the framework of the path integral method. The symmetric square matrices of the bilinear forms on the vector space of fields in both configuration space and momentum space were found explicitly. The exact lattice ... More
Presented by Dr. Alexandru PARVAN on 3 Jul 2017 at 15:45
We present an efficient computational scheme to integrate the time-dependent three-dimensional Schroedinger equation. The time-evolution operator is calculated with a second order split-operator technique and spatial derivatives are approximated with a sixth-order finite-difference method. The efficiency of our implicit scheme is demonstrated in comparison with a high-order direct method [1] fo ... More
Presented by Mr. Ilyas ISHMUKHAMEDOV on 3 Jul 2017 at 16:30
Nina Bogdanova1 and Mihaela Koleva2 1 INRNE, BAS, Sofia, Email:nibogd@inrne.bas.bg 2 IE, BAS, Sofia, Email:mihaela_ek@yahoo.com Our original Orthonormal Polynomial Expansion Method (OPEM) [1] in one-dimensional version is applied for first time to describe the silver nanoparticles spectroscopic data [2,3]. The experimental errors in variables are included in weights for approximation - differ ... More
Presented by Mrs. Nina BOGDANOVA on 4 Jul 2017 at 15:15
Nuclear magnetic resonance (NMR) is non-destructive and one of the best developed tools to study random motion of spins in different systems, including soft tissues such as the brain, heart and muscles. In the long-time limit the current mathematical description of the experiments allows proper interpretation of measurements of normal and anomalous diffusion. The all-time dynamics is correctly con ... More
Presented by Prof. Vladimir LISY on 4 Jul 2017 at 15:00
Session: Plenary
Models describing evolution of physical, chemical, biological, social and financial processes are often formulated as differential equations with the understanding that they are large-scale equations for averages of quantities describing intrinsically random processes. Explicit account of randomness may lead to significant changes in the asymptotic behaviour (anomalous scaling) in such models espe ... More
Presented by Dr. Juha HONKONEN on 5 Jul 2017 at 10:30
Various physical, chemical, and biological systems with fluctuations or noise are described by stochastic differential equations (SDEs). Constructing a SDEs for the modeled system such that the stochastic part is related to the structure of the system is considered in [1, 2]. Evaluation of probability density function (PDF) and other quantities describing a solution of system of SDEs is consider ... More
Presented by Dr. Victor MALYUTIN on 6 Jul 2017 at 15:45
Session: Poster Session
Arterial aneurysms are dilations of arterial walls that can grow over time and, in case of rupture leads to dangerous hemorrhage. Computer simulations of the blood flow and its interaction with the surrounding vessel tissue enables physicians to estimate rupture risks by calculating the distribution of blood pressure, velocity and wall stresses in the aneurysm, in order to support the planning ... More
Presented by Dr. Ivan GEORGIEV on 3 Jul 2017 at 18:00
GENERALIZED DARCY’S LAW IN FILTRATION THEORY Yu.P. Rybakov and N.V. Semenova Department of Theoretical Physics and Mechanics Peoples’ Friendship University of Russia 117198 Moscow, 6, Miklukho-Maklay str, Russia E-mail: soliton4@mail.ru We study the hydrodynamics of flow in porous medium modeling the grain filling in filters. Using the lattice approximation, we derive the structure o ... More
Presented by Prof. Yuri RYBAKOV, Mrs. Natalya SEMENOVA on 6 Jul 2017 at 15:00
Session: Plenary
Integration by parts is one of the most popular techniques in the analysis of integrals and it has frequently been used to create divergent series or asymptotic expansions of integral representations. The product of the technique is usually a divergent series formed from evaluating boundary terms; however, sometimes the remaining integral is also evaluated. Striking examples are the Euler series a ... More
Presented by Prof. Hassan SAFOUHI on 5 Jul 2017 at 09:30
Session: Poster Session
In this paper we propose a generating function's method for constructing new two and three-point iterations with $p\ (3\leq p\leq8)$ order of convergence. This approach allows us to derive a new family of optimal order iterative methods that includes well known methods as a special cases. The necessary and sufficient conditions for $p$-th order convergence of proposed iterations are given in term ... More
Presented by Prof. Zhanlav TUGAL on 3 Jul 2017 at 18:00
In this work we consider Korteveg-de Vries equation and apply to it our approach based on difference elimination by construction of a Groebner basis. As a result, we obtain finite difference approximation with second-order accuracy for the space and time. This scheme is consistent with Korteveg-de Vries equation and stable due to it is implicit. Therefore, our scheme is convergent. We made compari ... More
Presented by Г-н. Konstantin MARINOV on 7 Jul 2017 at 15:45
Veksler and Baldin Laboratory of High Energy Physics, Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia E-mail:fedorisin@jinr.ru Drift chambers (DCH's) constitute an important part of the tracking system of the BM@N experiment designed to study the production of baryonic matter at the Nuclotron energies. The method [1,2 ... More
Presented by Mr. Ján FEDORIšIN on 7 Jul 2017 at 16:00
The study of the properties of electron-hole systems is one of the rapidly developing areas of modern condensed matter phys-ics. At present, most attention is paid to low-dimensional elec-tron-hole systems, in which the role of the Coulomb interaction increases. Recently, electron-hole liquid (EHL) was found in SiO2/Si/SiO2 quantum wells [1] and in Si/Si1–xGex/Si het-erostructures [2]. The aim ... More
Presented by Dr. Alexander VASILCHENKO on 4 Jul 2017 at 15:30
The report contains the instantaneous cardiac rhythm (ICR) frequency (y) distribution functions f(y) determined on the basis of the Holter monitoring data using MAPLE programs. There was identified a multimodal behaviour of the distribution function f(y). It was shown that the ICR spectrum consisted of a solid component, resonances and antiresonances. The resonances are peaks f(y) determined by pe ... More
Presented by Prof. Victor TSVETKOV on 7 Jul 2017 at 13:45
In this work we studied a model, describing dynamics of a spherical gas bubble in a fluid. The bubble is oscillating close to the wall of finite thickness under the influence of external field pressure. This model is a generalization of the well-known Rayleigh-Plesset equation describing dynamics of gas filled bubble in an incompressible fluid. In the model considered in this work, the fact that g ... More
Presented by Mr. Ivan GARASHCHUK on 6 Jul 2017 at 15:45
Effective and accurate computer simulations are highly important in accelerators design and production. The most difficult and important task in cyclotron development is the magnetic field simulations. It is necessary to achieve the accuracy of the model that is higher than the tolerance for the magnetic field in the real magnet. An accurate model of the magnet and other systems of the cyclotron a ... More
Presented by Dr. Taisia KARAMYSHEVA, Mr. Vladimir MALININ, Mr. Dmitriy POPOV on 4 Jul 2017 at 16:30
High-accuracy finite element method for elliptic boundary-value problems is presented. The basis functions of finite elements are high-order polynomials, determined from a specially constructed set of values of the polynomials themselves, their partial derivatives, and their derivatives along the directions of the normals to the boundaries of finite elements. Such a choice of the polynomials all ... More
Presented by Dr. Alexander GUSEV on 6 Jul 2017 at 15:15
High-accuracy finite element method for solving the 2D parametric elliptic self-adjoint boundary-value problems is presented. The triangular elements and new high-order fully symmetric Gaussian quadratures with positive weights, and no points are outside the triangle (PI type) is applied. The program calculates with the given accuracy the eigenvalues, the surface eigenfunctions and their first ... More
Presented by Sergue VINITSKY on 6 Jul 2017 at 15:30
Session: Plenary
We consider the following dynamical system: \begin{equation}\begin{gathered} \label{I_1} m\,\frac{d^2y_{i}}{d t}=F_{i+1,i}-F_{i,i-1}-f_0\,\sin{\left(\frac{2\,\pi\,y_i}{a}\right)}, \qquad (i=1,\ldots,N), \end{gathered}\end{equation} where $y_i$ measures the displacement of the i-th mass from equilibrium in time $t$, the force $F_{i+1,i}$ describes the nonlinear interaction between atpms dislo ... More
Presented by Prof. Nikolay KUDRYASHOV on 7 Jul 2017 at 09:30
The paper intends to demonstrate the advantages of deep learning approaches over ordinary shallow neural network (NN) on their comparative applications to image classifying. An autoassociative neural network is used as a standalone program realized the nonlinear principal component analysis (NLPCA) for prior extracting the most informative features of input data for neural networks to be compared ... More
Presented by Prof. Gennady OSOSKOV on 6 Jul 2017 at 14:30
Together with frequency characteristics of instantaneous cardiac rhythm (ICR), characteristics related to the ICR change rate v are of great value for studies in cardiology. According to the data from day-long Holter monitoring, we constructed the ICR change rate distribution function It was demonstrated that for different patients the function had both the unimodal and the polymodal characters. ... More
Presented by Prof. Victor TSVETKOV on 7 Jul 2017 at 14:00
A detailed investigation of the IVC breakpoint and the breakpoint region width gives important information [1],[2] concerning the peculiarities of stacks with a finite number of intrinsic Josephson junctions. In [3] IVC for a stack of n Josephson junctions is defined numerically using the fourth- order Runge- Kutta method. The current voltage characteristic has the shape of a Hysteresis loop. On ... More
Presented by Svetlana SERDYUKOVA on 6 Jul 2017 at 14:30
A scheme of functioning of a quantum intelligence is suggested. The main difference between quantum and classical intelligences is that the former acts on the basis of quantum decision theory, evaluating prospects by quantum probabilities [1-5]. Owing to the quantum nature, a quantum probability is a sum of two terms, utility factor and attraction factor. Several quantum intelligences compose a qu ... More
Presented by Prof. Vyacheslav YUKALOV
Stages of direct computational experiments in hydrodynamics based on tensor mathematics tools are represented by conditionally independent mathematical models for calculations separation in accordance with physical processes [1]. Continual stage of numerical modeling is constructed on a small time interval in a stationary grid space. Here coordination of continuity conditions and energy conservati ... More
Presented by Prof. Alexander DEGTYAREV on 3 Jul 2017 at 14:30
Stages of direct computational experiments in hydrodynamics based on tensor mathematics tools are represented by conditionally independent mathematical models for calculations separation in accordance with physical processes [1]. Continual stage of numerical modeling is constructed on a small time interval in a stationary grid space. Here coordination of continuity conditions and energy conservati ... More
This paper is devoted to the study of entropy of a system of many particles with gravitational interaction. The study of entropy behavior is based on the Vlasov kinetic equation, using both numerical and exact solution. In view of the special laboriousness of the computation, parallel algorithms using CUDA technology are implemented in this paper. A parallel algorithm for solving the Vlasov equati ... More
Presented by Mr. Denis SUCHKOV on 3 Jul 2017 at 15:15
Currently the CBM experiment is being developed in GSI (Darmstadt, Germany) at the FAIR accelerator complex of an international collaboration with JINR. One of the main aims of the experiment is the study of charmonium production in nuclear-nuclear collisions at high energies. The key task in this problem is fast and reliable electron–positron identification using the energy losses of charg ... More
Presented by Mrs. Olga DERENOVSKAYA on 7 Jul 2017 at 13:45
In some models (for example, in plasma physics and semiconductor physics), the blow-up phenomenon occurs, i. e. the solution's norm tends to infinity as time tends to a finite moment. There exist some methods to detect blow-up analytically: Pokhozhaev and Mitidieri's test function method, Levine's method, and Samarskii and Galaktionov's similarity solutions method. These methods typically provide ... More
Presented by Dr. Alexander PANIN on 4 Jul 2017 at 15:45
Session: Plenary
Processes in photosynthetic membrane proceed at wide time scales from 10-12s-1 (charge separation in photosynthetic reaction centers of Photosystems I and II) till dozen of milliseconds (interactions with Calvin-Benson cycle of CO2 fixation). The paper presents the results of the work on kinetic and computer modeling performed at the Dept. of Biophysics, Biological faculty MSU. Kinetic models of ... More
Presented by Prof. Galina RIZNICHENKO on 7 Jul 2017 at 09:00
We extract effective gluon mass from zero-momentum gluon correlators in the SU(2) lattice Quantum Chromodynamics (QCD). Lattice simulations of these correlators have been done both for (i) periodic and (ii) so-called "open" boundary conditions. We found that the results for effective mass obtained in cases (i) and (ii) get closer when the lattice size increases. Nonzero effective gluon mass found ... More
Presented by Dr. Igor BOGOLUBSKY on 3 Jul 2017 at 15:15
A comparative study of the energy efficiency of proton beams with an energy from 0.5 GeV to 4 GeV and light ion beams (7Li, 9Be, 11B, and 12C) with energies from 0.25 AGeV to 1 AGeV in natural and enriched quasi-infinite U target is presented. The numerical results on the particle transport and interaction are obtained using the code Geant4. The following target optimization issues are addressed: ... More
Presented by Dr. Mihaela PARAIPAN on 7 Jul 2017 at 16:45
Volume integral equations method is considered for calculation of magnetic systems. We discuss an approach, based on finite element linear approximation of unknown vector field variables. Initially a three-dimensional domain is represented as a combination of standard macro-blocks with two-dimensional mesh on the boundaries. This allows to generate three-dimensional mesh in each individual block. ... More
Presented by Mr. Pavel AKISHIN on 6 Jul 2017 at 16:30
Session: Plenary
MATEMATICAL MODELING OF RESONANT PROCESSES IN CONFINED GEOMETRY OF ATOMIC AND ATOM-ION TRAPS V.S. Melezhik Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Dubna Moscow Region 141980, Russian Federation E-mail: melezhik@theor.jinr.ru Mathematical modelling of resonant processes in confined geometry of optical and electromagnetic traps is an actual p ... More
Presented by Prof. Vladimir MELEZHIK on 5 Jul 2017 at 09:00
A mechanism for controlling the convergence of the continuous analog of the Newton method (NAMN) with the use, as a control parameter, of the step variation coefficient of the difference scheme for the numerical solution of the differential equation of the NAMN. Using the example of a developed algorithm for a modified NAMN, it was shown that it is possible to control the characteristics of the co ... More
Presented by Dmitrii KAZAKOV on 6 Jul 2017 at 14:45
The astrophysical data is indicative of the presence of a minimum period of rotation of millisecond pulsars. Now this period is 1.396648 ms.At that, the indicated value is reached long before pulsar destruction under the influence of centrifugal forces. This phenomenon is easily explained by the fast growth of angular momentum losses near the bifurcation point of pulsar configuration due to intens ... More
Presented by Dr. Sergey MIKHEEV on 4 Jul 2017 at 14:45
Session: Plenary
The problem of constructing a choice model of an agent endogenously shaping purposes of his evolution is under debate. It is demonstrated that its solution requires the development of well-known methods of decision-making while taking into account the relation of action mode motivation to an agent's ambition to implement subjectively understood interests and the environment state. The latter is su ... More
Presented by Dr. G. VINOGRADOV on 4 Jul 2017 at 11:30
One of the promising and important areas in condensed matter physics is the study of the interaction of nanoclusters with various metallic targets [1]. When nanoclusters interact with a metal target in a small volume, there is a huge energy release per unit volume and this leads to structural changes. The origin of the structural changes can be a consequence of thermal processes or elastic interac ... More
Presented by Zafar TUKHLIEV on 4 Jul 2017 at 14:30
One of the varieties of pores, often found in natural or artificial building materials, are the so-called blind pores of dead-end or saccate type. Three-dimensional model of such kind of pore has been developed in this work. This model has been used for simulation of water vapor interaction with individual pore by molecular dynamic method [1]. Special investigations have been done to find dependen ... More
Presented by Mrs. Mária POPOVIčOVá on 3 Jul 2017 at 15:45
Session: Plenary
Abstract The talk will present our research at the Biomedical Cybernetics Group that I established about three years ago in Dresden. We adopt a transdisciplinary approach integrating information theory, machine learning and network science to investigate the physics of adaptive processes that characterize complex interacting systems at different scales, from molecules to ecosystems, with a partic ... More
Presented by Dr. Carlo CANNISTRACI on 4 Jul 2017 at 12:00
The main goal of this paper is to investigate the applicability of machine learning methods for processing and classifying experimental data obtained from the DEMON detector, as well as a comparative analysis of their effectiveness. Detectors of the DEMON type are one of the basic measuring elements in the ATLAS and ALICE experiments and are usually used for detecting neutrons and gamma quanta. ... More
Presented by Mr. Yurii BUTENKO on 6 Jul 2017 at 15:00
In this report we considered research results based on mathematical modeling approach to estimating and forecasting health indicators of population of Ulaanbaatar city from influenced of air pollution distribution in the atmosphere. In particular of the research, the present situation of air pollution sources in the districts on UB’s have been broadly reviewed and health impact analysis how it ... More
Presented by Mr. Budnyam SANJAA on 4 Jul 2017 at 17:00
Different models of tube with hyper elastic walls are investigated. They are tube with controlled pressure, tube filled by incompressible fluid, tube filled by compressible gas. Complete membrane model and non-linear hyper elastic model are used for walls of tube. Linear model of plate is used in order to take bending resistance of walls into account. Equations are solved numerically. Walls of th ... More
Presented by Dr. Igor BAKHOLDIN on 3 Jul 2017 at 16:45
The simulated data processing before receiving first experimental data is an important issue in the high-energy physics experiments. This work presents Mock Data Challenge (MDC) for the MPD experiment at the NICA accelerator complex. It uses the ongoing simulation studies to exercise in a stress-testing distributed computing infrastructure and experiment software in the full production environment ... More
Presented by Dr. Konstantin GERTSENBERGER on 6 Jul 2017 at 16:30
Session: Poster Session
Possible hadron-quark phase transition in the interior of the compact stars is one of actual question nuclear physics. Usually modeling of this transition are made with use of so called Maxwell construction, where the two phases assumed to be separated. However due to surface tension effects the mixer of phases could be thermodynamically more sufficient. We have suggested a simple model of such a ... More
Presented by Mr. Alexander AYRIYAN on 3 Jul 2017 at 18:00
Session: Plenary
The trajectory of a quantum system is a sequence of unitary evolutions of vectors in a Hilbert space, interspersed with observations --- projections of the vectors in some subspaces, that are specified by measuring devices. The result of quantum observation is random and its statistics is described by a probability measure defined on subspaces of the Hilbert space. Gleason's theorem gives a genera ... More
Presented by Dr. Vladimir KORNYAK on 6 Jul 2017 at 10:30
Dynamic J-V hysteretic effects [1] are consistently described by the dynamic electrical model (DEM) introduced in Ref. [2]. DEM explains the dependence of the hysteresis amplitude and short circuit current on the bias scan rate. It also reproduces the current overshoot experimentally observed in the reverse characteristics and its dependence on bias pre-poling. The basic assumption is that the rat ... More
Presented by Dr. George Alexandru NEMNES on 6 Jul 2017 at 14:45
Two-dimensional model of Fredericks effect was used for the investigation of the static electric field influence on nematic liquid crystal director orientation in the side–electrode cell. The solutions were obtained by finite-difference methods. The programs for numerical solution of two-dimensional parabolic partial differential equation were developed by using both FORTRAN and C++. Fredericks ... More
Presented by Prof. Aleksandr EGOROV on 3 Jul 2017 at 17:30
The repositioning of the microtubule organizing center is a part of many fundamental biological processes. It occurs in T-cell lymphocyte immediately after antigen presenting cell is recognized by T-cell. The Dynein's effort to walk to the minus end of the microtubule while being anchored at one place results in microtubule's sliding, and, hence in the repositioning of the microtubule organizing c ... More
Presented by Mr. Ivan HORNAK on 4 Jul 2017 at 15:15
Various results of numerous biophysical experiments on charge transfer along DNA fragment have demonstrated that different transport mechanisms are possible in DNA. The transfer rate depends not only on the length of the chain along which the transfer occurs, but also on its sequence [1]. We have studied the simple $1D$-model based on the semi-classical Holstein Hamiltonian for a discrete chain ... More
Presented by Dr. Nadezhda FIALKO on 4 Jul 2017 at 15:45
The proton spin puzzle is known since 1988 after measurements of quarks' helicity contribution to the proton spin [1]. In spite of all efforts applied, the problem remains an unresolved enigma of high-energy physics till now (see [2] and references therein). It has been recently shown that the confinement of quarks induces a change of their helicities together with a simultaneous alteration ... More
Presented by Dr. Boris KOSTENKO on 3 Jul 2017 at 17:00
We investigate the possibility of modeling turbulence via numerical functional integration. By transforming the incompressible stochastic Navier-Stokes equation into a functional integral we are able to calculate equal-time spatial correlation of system variables using standard methods of multidimensional integration. In contrast to direct numerical simulation, our method allows for simple par ... More
Presented by Dr. Ilja HONKONEN on 6 Jul 2017 at 15:15
Nonequilibrium effects in layered superconducting materials that appears as a result of injection of a stationary current are actively studied in recent years [1,2,3]. An experimental proof of the existence of a nonequilibrium effect in intrinsic Josephson junctions was given in [4] and was explained by the charge imbalance in the superconducting layers, which arises as the result of injection of ... More
Presented by Mr. Kirill KULIKOV on 3 Jul 2017 at 18:00
The modern approaches to the nonlinear stochastic models synthesis, stability analysis and verification are characterized in the current work. One of the approaches is related to the self-consistent stochastic models constructing technique. Based on this technique, the interaction schemes are constructed that includes the symbolic record of the possible interactions between the system elements. Th ... More
Presented by Olga DRUZHININA on 4 Jul 2017 at 17:30
Session: Plenary
In work the modified method of adaptive artificial viscosity so-called AIV method is considered. Earlier developed AIV method belongs to schemes a predictor - corrector type. In the procedure of this method between a predictor and the proofreader there is a stage of definition of areas of physical ruptures of the solution, in particular, of areas of an arrangement of shock waves and numerical osci ... More
Presented by Dr. Igor POPOV on 7 Jul 2017 at 12:00
Session: Plenary
INTRODUCTION Modeling accurately biological damage induced by ionizing radiation at the scale of the DNA molecule remains a major challenge of today’s radiobiology research (1). In order to provide the community with an easily accessible mechanistic simulation platform, the general purpose and open source “Geant4” Monte Carlo simulation toolkit (2) is being extended in the framework of t ... More
Presented by Dr. SEBASTIEN INCERTI on 4 Jul 2017 at 12:30
The paper deals with mathematical modelling of traffic flows on urban road networks. The presented model relates to microscopic approach, i. e. each car is considered separately and is described by its own set of parameters. The model is based on cellular automata theory and presents generalization of Nagel-Schreckenberg model [1] to a multilane case [2]. The computational domain is a 2D lattice ... More
Presented by Ms. Antonina CHECHINA on 3 Jul 2017 at 17:15
Session: Plenary
The multiscale multilevel approach for solution of nanotechnology problems by supercomputer systems is presented. The approach is based on combining the continuum mechanics models and the Newton's dynamics for individual particles. This combination includes three scale levels such as macroscopic, mesoscopic and microscopic levels. For gas - metal technical systems we use the following models. The ... More
Presented by Prof. Sergey POLYAKOV on 7 Jul 2017 at 11:30
Session: Plenary
Molecular dynamics simulations of proteins may differ by the granularity of the underlying force fields (from quantum to coarse grain). At times, it is very useful to combine different descriptions in a hybrid description. Here I will present recent hybrid Quantum Mechanics/Molecular Mechanics (QM/MM) – and MM/coarse grain (CG) based investigations of targets for pharmaceutical intervention. The ... More
Presented by Prof. Paolo CARLONI on 3 Jul 2017 at 10:30
Session: Poster Session
We present an elegant method for calculation of complicated integrals by using the Mellin representation. In this paper, the passage to a complex plane plays a vital role in obtaining universal formulas for taking enormous number of integrals from sign variables functions.
Presented by Mr. Purevkhuu MUNKHBAATAR on 3 Jul 2017 at 18:00
Voytishin N. voitishinn@gmail.com LIT, Joint Institute for Nuclear Research, Dubna, Russia Relativistic heavy ion collisions provide the unique opportunity to study nuclear matter under extreme density and temperature. If the energy density in the formed fireball is sufficiently large the quark-gluon substructure of nucleons becomes visible. Theoretical models, however, suggest different poss ... More
Presented by Mr. Nikolay VOYTISHIN on 7 Jul 2017 at 15:30
Aerohydrodynamics and aerohydroelasticity problems (also known as Fluid-Structure Interaction (FSI) problems) cause big and uninterrupted interest in science, industry, biomedicine and other applications. Preconditions for a detailed study of the nature of aerohydrodelasticity and the search for methods that let to predict consequences of strong wind impact and solve coupled problems related to t ... More
Presented by Mrs. I. AFANASYEVA on 3 Jul 2017 at 15:00
\documentclass[12pt]{article} \usepackage{amssymb} \sloppy \paperwidth=210mm \paperheight=297mm \textheight=250mm \textwidth=165mm \oddsidemargin=-0.4mm \evensidemargin=-5.4mm \topmargin=-5.4mm \begin{document} \begin{center} Near-perfect matchings on cylinders $C_m \times P_n$ of odd order \end{center} Abstract:\\ The problem of counting near-perfect matchings on cylinde ... More
Presented by Dr. Sergey PEREPECHKO on 7 Jul 2017 at 14:30
The heterogeneous cluster HybriLIT [1] enables high performance computing (HPC) in JINR by means of a modular architecture involving multi-core processors, coprocessors and graphical accelerators. A lately acquired HybriLIT module – the virtual desktop infrastructure (VDI) – secures the coverage of another vital need, the resource intensive graphical applications. The VDI implementation merge ... More
Presented by Mr. Mikhail MATVEYEV on 4 Jul 2017 at 16:45
Session: Plenary
In the numerical method of collocations and the least residuals (CLR), the boundary differential problem using the collocation method is projected into a finite-dimensional linear functional space. To find the solution of the obtained approximate problem, an overdetermined system of linear algebraic equations (SLAE) is written out and it is required that on its solution the minimum of the dis ... More
Presented by Prof. Vasily SHAPEEV on 6 Jul 2017 at 10:00
The construction of event detectors is still a relevant task, due to dynamic developments in the field of computer vision. We present the new approaches which we developed to achieve superior detection perfomance for realistic tasks, such as detection of objects, detection of motion and detection of behaviors. These are then successfully implemented in detectors, which can be integrated in ... More
Presented by Dr. Alexey STADNIK on 4 Jul 2017 at 17:45
Within the scope of non-diagonal Bianchi cosmological models we have studied the role of spinor field in the evolution of the Universe. Unlike in diagonal Bianchi models such as I, III, V, VI0 and VI where spinor field distribution along the main axis is isotropic and becomes zero for linear spinor field, in case (non-diagonal) Bianchi models such as II, VIII and IX, spinor field distributi ... More
Presented by Dr. Bijan SAHA on 3 Jul 2017 at 15:00
Session: Poster Session
A finite difference scheme for solving systems of 2D Sine-Gordon equations is constructed. A parallelization strategy with both thread and SIMD levels of parallelism is proposed and an OpenMP program is realized. The program is tested on two different Intel architectures: 2x Xeon E5-2695 v2 processors, (code-named “Ivy Bridge-EP”) in the Hybrilit cluster and on Xeon Phi 7250 processor (code-n ... More
Presented by Dr. Ivan HRISTOV on 3 Jul 2017 at 18:00
A method and a complex of computer programs are developed for the numerical solution of the system of nonlinear partial differential equations describing a formation of the polaron states in condensed media [1,2]. Parallel implementation is based on the MPI technique and on the utilizing of the partition algorithm [3]. Numerical simulation of the photoexcited electron states formation in water ... More
Presented by Mrs. Alina VOLOKHOVA on 3 Jul 2017 at 17:30
The positive electrode in lead-acid batteries is one of the most sensitive parts of the battery, that is affected by aggressive chemical processes during its life. Therefore, an optimal design of the positive electrode of the battery may have as effect a dramatic improvement of the properties of the battery - such as total capacity or endurance during its life. Numerical optimization of electrodes ... More
Presented by Dr. Ancuta Teodora MURARIU on 6 Jul 2017 at 14:30
The beams are typical elements of complex mechanical systems. Vibrations of beams are modeled by initial boundary problems for the forth order partial differential equation, where initial conditions are considered as non-desirable perturbations and right parts of the equation as a control function. In this report we investigate the possibility of numerical damping non-desirable vibrations for mini ... More
Presented by Mr. Nikolay TARAN on 3 Jul 2017 at 16:30
In this talk we consider the problem of planning and optimization of the cutaneous cryosurgery operations. The method of the additional heating and freezing elements mounting is studied as an approach to optimize the cellular necrosis front propagation. Mathematical modeling is used for the effectiveness improvement of the method under consideration. An explicit scheme based on the finite volume a ... More
Presented by Mr. Kirill SHILNIKOV on 6 Jul 2017 at 15:15
The normal properties of graphane with various degrees of doping are calculated with the help of the generalized Eliashberg theory. Within the theory of strong electron-phonon interaction, a superconducting order parameter of the doped graphane has been found. The classical approach for determining the critical temperature of a superconducting transition as a result of a strong electron-phonon int ... More
Presented by Mr. Aleksandr KUTUKOV on 6 Jul 2017 at 14:30
Session: Poster Session
Success in solving multiparticle problems is in many cases connected with the choice of an adequate model. As a simple example, we can cite the concept of a polaron as a problem of an autolocalized electron in an ionic crystal. At present, there are a large number of physical examples [1-3], the theory of polarons, bipolarons, a strong-coupling binucleon model, a generalized polaron model, etc. Th ... More
Presented by Dr. Nil Ratan SARKER on 3 Jul 2017 at 18:00
We present new results on the Load Balancing Problem that concerns and assignment of given jobs to a set of machines each of which can process a subset of jobs. Each job requires one unit of processing time and must be assigned to some machine that can process it. The jobs have to be assigned in such a manner that minimises the total completion time. We exploit graph theory models and the divide-a ... More
Presented by Prof. Gabriel SEMANIšIN
Session: Plenary
One of the main purposes of the physics program of the future heavy-ion experiment CBM (FAIR, Germany) is to understand the properties of strongly interacting matter at very high baryonic densities and to study the possibility of a phase transition to a deconfined and chirally restored phase of quark matter. The experiment will operate at high interaction rates up to 10 MHz, that requires a full e ... More
Presented by Ms. Valentina AKISHINA, Prof. Ivan (for the CBM collaboration) KISEL on 7 Jul 2017 at 11:00
\documentclass{article} \addtolength{\textheight}{-10mm} \addtolength{\topmargin}{-5mm} \pagestyle{plain} \def\title#1{\begin{center}#1\end{center}} \def\author#1{\centerline{\small{\textsc{#1}}}} \def\address#1#2{\begin{center}\small\emph{#1}\\E-mail: \texttt{#2}\end{center}} \def\refname{{\small References}} \begin{document} \title{\textsc{On Interpolational Approximation ... More
Presented by Leonid YANOVICH on 3 Jul 2017 at 17:15
Two methods of generation of random ensembles of mixed quantum states of different ranks are discussed. The first method exploits the Ginibre ensemble of complex square random matrices, while the second one is based on the singular value decomposition of density matrices. Distribution properties of the “probability of entanglement” in composite systems consisting from qubit-qubit and qubit-qut ... More
Presented by Mr. Ilia ROGOJIN on 6 Jul 2017 at 16:30
We are considering the state space of two qubits formed from the X-states. Its decompositions with respect to two groups actions are studied. The first decomposition is constructed in accordance with the types of orbits of the invariance group G_X of X-state space. The second decomposition arises considering the action of the subgroup LG_X of invariance group G_X, the so-called “local group of ... More
Presented by Ms. Astghik TOROSYAN on 6 Jul 2017 at 16:45
Session: Plenary
We present new results on the Load Balancing Problem that concerns and assigment of given jobs to a set of machines each of which can process a subset of jobs. Each job requires one unit of processing time and must be assigned to some machine that can process it. The jobs have to be assigned in such a manner that minimises the total completion time. We exploit graph theory models and the divide-an ... More
Presented by Prof. Gabriel SEMANIšIN on 7 Jul 2017 at 10:00
According to the Stratonovich-Weyl correspondence there is mapping between operators on the Hilbert space of a finite-dimensional quantum system and functions on the phase space of its classical mechanical counterpart. This map is given by the Wigner quasiprobability distribution and can be implemented with the aid of the Stratonovich–Weyl operator kernel which satisfies a number of lucid physi ... More
Presented by Mr. Vahagn ABGARYAN on 6 Jul 2017 at 17:15
In this talk we discuss applications of the generalized Sundman transformations for finding families of integrable Li\'{e}nard--type equations. Under integrable equations here we understand equations for which we can construct the general analytical solution. Employing connections, given by the generalized Sundman transformations, between Li\'{e}nard--type equations and equations of the Painleve-- ... More
Presented by Dr. Dmitry SINELSHCHIKOV on 6 Jul 2017 at 15:30
Process of recognition of the shape of graphic objects consists of several stages. At the first stage as a result of processing images some set of characteristic properties of some object are extracted. On the second one, identification of object is made by comparison of these properties with properties of the sample. Presence of noise on real graphical images often distorts quality of characteris ... More
Presented by Prof. Ivan GOSTEV on 4 Jul 2017 at 18:00
Session: Plenary
Presented by Prof. Victor MATVEEV on 3 Jul 2017 at 10:00
Recently an unexpected approximation property between polynomials of degree three and four was revealed within a framework of two-part approximation models in 2-norm, Chebyshev norm and Holladay semi-norm. Namely, it was proved that if a two-component cubic Hermite spline’s first derivative at the shared knot is computed from the first derivative of a quartic polynomial, then the spline is a c ... More
Presented by Dr. Csaba TöRöK on 4 Jul 2017 at 15:00
Gaussian plume models are commonly used class of mathematical models used in the air pollution dispersion and/or deposition modelling. The goal of the study was to optimize computations with the Gaussian model Symos'97 to significantly improve the speed of computations and to migrate computations from proprietary softwares (ArcGIS, SW implementation of the model for PC) to unified, platform-indepe ... More
Presented by Mr. Vladislav SVOZILíK on 4 Jul 2017 at 16:45
In this paper we present the instantaneous cardiac rhythm (ICR) function and its difference derivative constructed based on the data of day-long Holter monitoring. These functions contain complete patient cardiovascular system state information. In order to analyze the behavior of these functions, there was introduced a concept of phase space (PS) of ICR the points of which had coordinates an ... More
Presented by Prof. A. KUDINOV on 7 Jul 2017 at 14:15
We consider the problem of choice of angle of attack and bank by a device which is slowed down in the atmosphere for the flight on the minimum of maximum heat with constraints on the value of full loading factor. The solution of mentioned problems allows to determine maneuver abilities of the device. The constraints on full loading factor (control-state constraint), the lift force coefficient (con ... More
Presented by Prof. Vasily DIKUSAR on 6 Jul 2017 at 17:45
In this study we examine the prospect of using evolutionary optimization algorithms in protein-peptide docking. We present the main assumptions that reduce the docking problem to the continuous global optimization problem and provide a way of using evolutionary optimization algorithms. The Rosetta all-atom force field was used for structural representation and energy scoring. We describe the paral ... More
Presented by Mr. Sergey POLUYAN on 4 Jul 2017 at 15:30
Modern parallel computing algorithm has been applied to the solution of the few-body problem. The approach is based on Feynman’s continual integrals method implemented in C++ programming language using NVIDIA CUDA technology. Calculations were performed on the NVIDIA Tesla K40 accelerator installed within the heterogeneous cluster of the Laboratory of Information Technologies, Joint Institute fo ... More
Presented by Mikhail NAUMENKO on 3 Jul 2017 at 15:30
Session: Plenary
We apply modern computer algebra methods and software for the Lie symmetry analysis to the governing Cosserat system of twelve nonlinear partial differential equations (PDEs) describing dynamics of nearly one-dimensional flexible structures (rods, fibers, cables, etc.) and construct the general analytical solution to the kinematic part (six equations) of the system. The obtained solution depends o ... More
Presented by Prof. Vladimir GERDT on 6 Jul 2017 at 11:30
The new method to study human brain activity was developed [1]. This method aims to determine spectral characteristics, specific to various regions and structures of the human brain. Said method combines two completely different sources of information: 1) anatomical information, obtained from magnetic resonance imaging(MRI); 2) information about human brain activity, obtained by multichannel magne ... More
Presented by Mr. Stanislav RYKUNOV on 4 Jul 2017 at 16:30
Critical behaviour of directed bond percolation is studied in presence of an advective velocity field [1,2]. The velocity field is modeled by Kraichnan ensemble [3]: time-decorrelated compressible Gaussian velocity field. The model is studied by means of field-theoretic approach. Renormalization group (RG) method is used in order to analyse asymptotic large-scale behaviour of the model near its cr ... More
Presented by Ms. Sarlota BIRNSTEINOVA on 3 Jul 2017 at 16:45
An oscillatory flow regime of the formation fluid is sometimes observed at the operating gas-condensate reservoirs which entails unbalance of the well operation and leads to unstable work of the well. Both external impact of periodic factors and monotonous energy inflows into the system could be the reasons for observed pulsations. The system converts the incoming energy into vibrations due to its ... More
Presented by Mrs. Yulia PAZYUK on 3 Jul 2017 at 17:45
Session: Plenary
First, we shall make a short introduction the concepts of fractional calculus and differential equations of fractional order that include both, steady-state and time dependent problems. This type of problems arise in mathematical modeling of asymmetric super-diffusion processes in highly heterogeneous media. Further, we shall present variational formulations of Petrov-Galerkin type for one-dim ... More
Presented by Prof. Raytcho LAZAROV on 3 Jul 2017 at 12:30
Session: Plenary
A method for the analysis of complex oscillating electrical systems was proposed [1], based on the multichannel measurements of magnetic field through the hundreds of seconds. Using whole registration time, the Fourier transform of the data is performed, leading to detailed spectra with many frequency components. Further analysis results in total decomposition of the system into functionally invar ... More
Presented by Prof. Mikhail USTININ on 4 Jul 2017 at 09:00
Session: Poster Session
The problem of predicting the oscillations of the main thermodynamic parameters of the core in the first loop of the sodium cooling system of IBR-2M reactor is examined. Attention is focused mainly on the prediction of the temperature and sodium flow at the entry into the core as well as the thermal power. It is shown that the prediction makes it possible to reduce by a factor of 3 the influence o ... More
Presented by Mr. Tsogtsaikhan TSOLMON on 3 Jul 2017 at 18:00
The modern trends in use of the small-angle scattering method consist in varying a sample environment, e.g. temperature, pressure, magnetic or electric fields. The objects under investigation can be oriented in the field or by the flow of a liquid. In this case the need for the position-sensitive detector (PSD) arises. The position-sensitive detector of the new type has been created for the Yu ... More
Presented by Dr. Alexei SOLOVIEV on 7 Jul 2017 at 17:15
It is described a certain provable program for a generic arithmetic of fractions. This is a small part of the project DoCon-A of provable programs for a computer algebra library. In this system, functional programs for known algebraic methods are written together with proofs, and proofs are automatically checked by the compiler (see the Coq and Agda systems). The used language (Agda) is purely ... More
Presented by Dr. Sergei MESHVELIANI on 7 Jul 2017 at 13:30
In [1], a scalar model of the propagation of electromagnetic radiation in a thin-film waveguide lens is described. The applicability of the model to the approximate description of the depolarization process in a thin-film waveguide lens is investigated. In this paper, based on the ideas underlying the model, we propose an approximate vector model. The proposed model explicitly uses the slow depen ... More
Presented by Mr. Dmitriy DIVAKOV on 4 Jul 2017 at 15:00
The formation and evolution of quantum correlations is one of the central problems of quantum information. Although quantum correlations are necessary to provide advantages of quantum information devices in comparison with their classical counterparts, the appropriate measure of these correlations is not well-established yet. Quantum entanglement [1] was considered as a suitable measure for ... More
Presented by Dr. Alexander ZENCHUK on 6 Jul 2017 at 17:45
Session: Plenary
Quantum correlations are different from all other correlations in many-particle systems. They depend on measurements. Quantum correlations are responsible for the advantages of quantum devices over their classical counterparts and ensure efficient work of all quantum devices, including quantum computers. Entanglement is a measure of quantum correlations for pure states. According to the current u ... More
Presented by Prof. Edward FEL'DMAN on 6 Jul 2017 at 09:30
Session: Plenary
A model predicting the behavior of a hole acting on the DNA strand was investigated. The hole-DNA interaction on the basis of a quantum-classical, non-linear DNA single strand model was described. The fact that a DNA molecule is formed by a furanose ring as its sugar, phosphate group and bases was taken into consideration. Based on the model, results were obtained for the probability of a hole loc ... More
Presented by Dr. Sergey SHIRMOVSKY on 4 Jul 2017 at 10:00
The first three corrections to the bound state energy, separation constants, and wavefunctions of hydrogen-like ion in the field of remote ($R \gg 1$) point charge are calculated by means of the modified perturbation theory. The consistent scheme for obtaining WKB expansions for solutions of the quasiangular equation in quantum mechanical two-Coulomb-centre problem $Z_1eZ_2$ is developed. In ... More
Presented by Prof. Michal HNATIČ on 3 Jul 2017 at 15:30
Grid site are a challenging job, but in they can modify for the greater good. They can become from full Grid sites just to simple processing units or simple storage systems. Everything depends on financial support or financial and human support. At the National Institute for Research and Development of Isotopic and Molecular Technologies (INCDTIM) Cluj-Napoca, there is such a Grid site which in th ... More
Presented by Dr. Jefte NAGY on 4 Jul 2017 at 17:00
The key impact of nanotechnologies on many areas of research and development has become prominent in recent years. Biomedicine belongs to the most influenced fields by nanotechnology, for example thanks to the introduction of theranostics (systems for combined diagnostics and therapeutic utilization). These systems can be composed from metallic core nanoparticles functionalized with monolayer-cove ... More
Presented by Dr. Tibor KOZAR on 4 Jul 2017 at 17:30
A significant amount of the human knowledge of Nature is based on the evidence which the rigorous mathematics would have called insufficient. However, in some cases (very important ones indeed) the increasing of data statistics is hardly implementable, added to which once such problem has been overcome in one field of the research investigations ... More
Presented by Victor ZLOKAZOV on 7 Jul 2017 at 17:30
A quantitative study of early mechanisms of the central nervous system (CNS) disorders induced by high-energy heavy ions at the molecular and cellular levels is one of urgent problem of modern radiobiology. The present study is focused on the development of optimal models of neuronal morphology for Monte Carlo microdosimetry simulation of initial radiation-induced events of heavy charged particles ... More
Presented by Mr. Batmunkh MUNKHBAATAR on 4 Jul 2017 at 14:30
Photosystem II (PSII) is one of the cue protein complexes involved in photosynthesis. It carries out the transfer of electrons from oxygen evolving complex (OEC) to the plastoquinone in the time range from picoseconds to hundreds of milliseconds. The fluorescence emitted by the antenna pigments of PSII is an important marker of the photosynthesis activity. Different phases of fluorescence transien ... More
Presented by Dr. Tatiana PLYUSNINA on 4 Jul 2017 at 17:00
In Cisco Guard XT technology under the protection against DDoS attacks, along with filtering and active verification, uses anomaly detection. In this case, all traffic that is not stopped by the filtering and active verification modules is monitored, and this traffic is matched against the basic behavior recorded for a certain period of time. In this paper, we propose an approach based on the red ... More
Presented by Dr. Dmitry REPIN on 4 Jul 2017 at 17:30
Concise introduction in RD and GAF with some applications.
Presented by Dr. Nugzar MAKHALDIANI on 3 Jul 2017 at 17:15
FlowVision software is designed for automation of engineering calculations in industrial computational fluid dynamics (CFD). It has a capability to solve complex non-tradition problems involving different physical processes. The paradigm of complete automation of labor-intensive and time-taking processes like grid generation makes FlowVision attractive for many engineers. FlowVision includes an ad ... More
Presented by Dr. A AKSENOV on 3 Jul 2017 at 15:45
Session: Plenary
New approach to an obtaining of the equations of magnetic gas dynamics is offered. This approach is based on complex-valued locally Maxwellian distribution function. By means of the approach the equations of ideal magnetic gas dynamics are received. The analog of quasidynamic system of the equations is also constructed, describing magnetic and gasdynamic processes taking into account dissipation o ... More
Presented by Prof. Boris CHETVERUSHKIN on 3 Jul 2017 at 12:00
There is a cloud based resource MathBrain which provides users with tools for time series analysis. The most of methods is dedicated to magnetic- and electro encephalography (MEG, EEG) analysis which originally contains big amount of data to calculate. These methods of brain analysis are noninvasive, and the process looks like a registration of electro-magnetic activity. During the procedure, magn ... More
Presented by Mrs. Ekaterina OPLACHKO on 4 Jul 2017 at 16:45
Session: Plenary
Shape Approximation Based on Higher-Degree Polynomials N.D. Dikusar Joint Institute for Nuclear Research, Laboratory of Information Technologies, Dubna 141980, Russia dnd@jinr.ru The planar shape (contour) of an object is a fundamental source of information in a pattern recognition problem. Obtaining the relevant information set rests on difficult procedures and is a key problem in patter ... More
Presented by Nikolay DIKUSAR on 6 Jul 2017 at 12:30
Session: Poster Session
Presented by Eu. KOVAL on 3 Jul 2017 at 18:00
The main goal of this paper is investigation of some singularities and specific features of atmosphere flows above the complex terrain of the Georgian territory, for prediction a regional scale dangerous events (heavy rains, hails) formation by different cumulus parameterization (CPSs) and micro physics (MP) schemes. To achieve the specified goal, we have used 3-D non-hydrostatic, non-stationary ... More
Presented by Prof. Teimurazi DAVITASHVILI, Mrs. Nato JIADZE on 4 Jul 2017 at 14:45
One of the most exciting puzzles in cosmology is connected with the question of the existence of anti-matter in the Universe. A number of dedicated cosmic ray experiments aim to search for anti-nuclei. Also, anti-nuclei have been observed in nucleus-nucleus and proton-proton collisions by experiments at the RHIC and LHC accelerators. To support the experimental studies of the anti-nuclei a Monte C ... More
Presented by Dr. Aida GALOYAN on 7 Jul 2017 at 14:45
We consider the generalized model of the system of coupled long JJs[1] which takes into account the inductive and capacitive coupling and the diffusion current[2,3]. Numerical investigation of phase dynamics of long JJs stack is based on the parallel simulation algorithm which provides an essential acceleration of simulation procedure[4]. Using the developed numerical approach, we demonstrate a cr ... More
Presented by Dr. Ilhom RAHMONOV on 6 Jul 2017 at 17:00
Radiation damage to the central nervous system (CNS) has been an on-going challenge for the last decades primarily due to the issues of brain radiotherapy and radiation protection for astronauts during space travel. Although recent findings revealed a number of molecular mechanisms associated with radiation-induced impairments in behaviour and cognition, some uncertainties exist in the initial ne ... More
Presented by Mr. Batmunkh MUNKHBAATAR on 4 Jul 2017 at 14:45
Session: Poster Session
Our work is devoted to the construction and numerical study of low-level models of urban traffic based on extended Petri nets. We describe the basic principles for constructing such models. We propose an algorithm for automatic conversion of a given graph description of a road network into a Petri net taking into account the resolution of conflict situations (on the basis of traffic rules). As an ... More
Presented by Ms. Irina MARTYNOVA on 3 Jul 2017 at 18:00
The behavior of various systems in living and nonliving matter may be characterized mathematically by a linear combination of exponential functions. Many types of scientific experiments are often conducted in such a way that changes in some characteristic variable in response to some perturbation are recorded. These measurements yield data referred to as a signal. Assuming the signal by its nature ... More
Presented by Mr. Sergei KHRUSCHEV on 3 Jul 2017 at 17:45
Session: Poster Session
We observed possibilities and properties of sensitized photo induced optical anisotropy formation in amorphous poly (vynyl-cinnamate) films (PVCi) and its derivant poly (vynyl-4-methoxy-cinnamate) (PVMCi) under polarized light, including the one which is not absorbed by the supermolecules of the polymeric material. The effect of the induced optical anisotropy involves transferring the energy of el ... More
Presented by Dr. Denis CHAUSOV on 3 Jul 2017 at 18:00
Tracking procedure is an important part of event reconstruction in high energy physics experiments. One of the fastest and efficient track finding algorithm is a cellular automaton (CA). It is used in various experiments including CBM at FAIR and STAR at RHIC. CBM and STAR CA track finders have similar implementations. But standard track finding procedure may be not fast enough for online calculat ... More
Presented by Mr. Grigory KOZLOV on 7 Jul 2017 at 14:30
Session: Poster Session
The IBR-2M pulse reactor is characterized by a high level of reactivity fluctuations and, as a consequence, a high level of fluctuations in the regulated parameter-the amplitude of the power pulses. Fluctuations of the regulated parameter relative to the average level in the standard stabilization regime usually fall within the range of 20% with possible emissions up to 40%, which is close to the ... More
Presented by Mr. Sumkhuu DAVAASUREN on 3 Jul 2017 at 18:00
The main goal of modern heavy-ion experiments is a comprehensive study of the QCD phase diagram, in a region of Qaurk-Gluon Plasma (QGP) and possible phase transition to QGP phase. One of possible signals of QGP formation is enhanced strangeness production. Reconstruction of Σ particles together with other strange particles completes the picture of strangeness production. Σ+ and Σ- have all de ... More
Presented by Mr. Pavel KISEL on 7 Jul 2017 at 13:30
Gas Electron Multiplier (GEM) detector is developed for modern purposes in elementary particle physics. In the actual BM@N experiment a GEM system is used for trajectories reconstruction of charged particles. The investigation of GEM performance (efficiency and spacial resolution) is presented.
Presented by Vasilisa LENIVENKO on 7 Jul 2017 at 15:45
Session: Plenary
Presented by Prof. Vladimir VOEVODIN on 3 Jul 2017 at 11:00
The actual task of accelerator physics is the preliminary modeling of particle beam dynamics in an accelerator (including polarized ones). The search for optimal parameters of the control system that provides the necessary functionality of the particle beam particle control system is a resource-intensive problem, which leads to the need to use appropriate mathematical models which naturally allow ... More
Presented by Г-а. Ekaterina SBOEVA on 6 Jul 2017 at 17:45
The dynamics of a satellite in a circular orbit under the influence of gravitational and active damping torques, which are depend on the projections of the angular velocity of the satellite is investigated [1]. Such active damping torques are proportional to the projections of angular velocities onto the axes of the satellite body coordinate system and can be provided by using the angular velocity ... More
Presented by Dr. Sergey GUTNIK on 6 Jul 2017 at 15:45
The work explored the possibility of combining Cloud and High-performance computing (HPC) cluster into a single system. Message Passing Interface (MPI) is the most popular programming technology used for parallel calculations conducted on HPC cluster. The solution of the problem of combining Cloud and HPC cluster is of interest to investigate the efficiency of MPI technology when it is used on vir ... More
Presented by Mr. E. ALEXANDROV on 4 Jul 2017 at 14:30
The formula¬tion of the boundary value problem arises in magnitostatics when finding the mag¬netic field distribution by the method of two scalar potentials in the domain com¬prising ferromagnetic and vacuum. The problem nonlinearity is stipulated by the dependence of the medium properties (magnetic permeability) on the solution to be found. In connection with that the solution of such a proble ... More
Presented by Dr. Evgeny PEREPELKIN on 3 Jul 2017 at 14:45
Development, research and verification of correct mathematical models and methods of structural mechanics are the most important aspects of ensuring safety of structures and buildings. Finite element method (FEM) is the most popular method of structural analysis. The field of application of discrete-continual finite element method (DCFEM) comprises structures with regular (in particular, constant ... More
Presented by Prof. Pavel AKIMOV, Mr. Oleg NEGROZOV on 3 Jul 2017 at 15:15
Universal quantities (anomalous dimensions and critical exponents) of directed bond percolation are calculated by the renormalization group method in higher order perturbation theory. We put forward a renormalization procedure for a numerical calculation in which the quantities are expressed in terms of irreducible renormalized Feynman diagrams. The procedure is based on the perturbative renormali ... More
Presented by Mr. Lukas MIZISIN on 3 Jul 2017 at 17:00
Hydrocarbon mixtures filtration process simulation development has resulted in use of cubic equations of state of the van der Waals type to describe the thermodynamic properties of natural fluids under real thermobaric conditions [1]. Two- and three-component hydrocarbon systems allow to simulate the fluids of different types of reservoirs qualitatively, what makes it possible to carry out the ... More
Presented by Mr. Dmitry MOLCHANOV on 4 Jul 2017 at 16:30
Quantum decoherence is one of the most important problems for creation of quantum devices which outperform their classical counterparts [1]. The performed investigations demonstrate [2] that the decoherence time decreases when the number of qubits in the coherent cluster increases. We used methods of multiple-quantum (MQ) NMR [3] for the investigation of the decoherence processes in many-qu ... More
Presented by Mr. Georgii BOCHKIN on 6 Jul 2017 at 17:30
Session: Poster Session
The problem of optimal motion control for one-dimensional and two-dimensional systems of fractional order is considered. To search the analytical solutions of the problem the method of moments was applied. The properties of optimal controls depending on the index of fractional index, the control time, initial and final conditions were analyzed.
Presented by Mrs. Elena POSTNOVA on 3 Jul 2017 at 18:00
Many natural phenomena are described by a system of nonlinear partial differential equations (PDEs) which is often difficult to be solved analytically, as there is no a general theory for completely solving of the nonlinear PDEs. One of the most useful techniques is the Lie (classical) symmetry method and to obtain the invariant solutions, we focus on the physically interesting situations which ... More
Presented by Mr. Viktor RIKHVITSKY on 7 Jul 2017 at 16:15
An algorithm of reduction of n-order differential equation into the system of n-order Riccati-type equations is constructed. Solutions of the system of Riccati equations are roots of the polynomial coefficients of which are given by the set of linear independent solutions of n-order differential equation. Interrelations with the Poincare model of hyperbolic space and the general complex algebra ... More
Presented by Dr. Robert YAMALEEV on 7 Jul 2017 at 17:00
UWB radar technology enables a target localization of an object, e.g., man behind a wall of known material consistency, e.g., concrete. If exact values of TOA (Time of a signal arrival from a transmitting antenna to a receiver) are known, it is possible to achieve high precision of localization. In the paper an influence of a time quantization on the localization precision will be studied ... More
Presented by Dr. Ján BUšA on 6 Jul 2017 at 17:15
CBM (“Compressed Baryonic Matter”) is an experiment being prepared to operate at the future Facility for Anti-Proton and Ion Research (FAIR) in Darmstadt, Germany. CBM will explore the high-density region of the QCD phase diagram by investigating nuclear collisions from 2 to 45 GeV beam energy per nucleon. Its main focus is the measurement of very rare probes (e.g. charmed hadrons), which requ ... More
Presented by Mr. Timur ABLYAZIMOV on 7 Jul 2017 at 14:15
Fragmentation reactions are of interest for the production of exotic beams and for accelerator driven applications. They have been well parametrized by empirical methods, but a microscopic understanding of the mechanism is of great interest. One such method is the transport approach which describes the collision as a Hamiltonian mean field propagation together with a dissipative two-body collision ... More
Presented by Tatiana MIKHAYLOVA on 6 Jul 2017 at 17:30
Non- perturbative Renormalization Group ( NPRG ) technique is applied to a stochastical model of non-conserved scalar order parameter near its critical point, subject to turbulent advection . The compressible advecting flow is modelled by a random Gaussian velocity field with zero mean and correlation function $\langle \upsilon_j \, \upsilon_i \rangle \sim (P_{j i}^{\perp} + \alpha P_{j ... More
Presented by Prof. Michal HNATIč on 3 Jul 2017 at 17:45
Session: Poster Session
Presented by Ms. Shushanik TOROSYAN on 3 Jul 2017 at 18:00
Session: Plenary
The report describes power transformations of degenerate autonomic polynomial systems of ordinary differential equations which reduce such systems to a set of non-degenerate systems. The original problem is separated in a number of partial nilpotent tasks. There is an example of building exact first integrals of motion of a degenerate planar system in a closed form as functions of system para ... More
Presented by Dr. Victor EDNERAL on 6 Jul 2017 at 12:00
Presented user software is aimed at the field of science research. Potential users are physicists who study Josephson junction with magnetic momenta. Computer implementation has been done by means of Wolfram Mathematica using the extensive capabilities of this system to create interactive dynamic objects. It enables to analyze the problem in amending all relevant physical parameters. The accuracy ... More
Presented by Dr. Pavlina ATANASOVA on 6 Jul 2017 at 16:45
Session: Poster Session
Within the framework of our project on modeling of urban transport traffic, we consider the following task. There is a mobile application that continuously records the geographic coordinates of the mobile device and data from its other sensors (for example, an accelerometer). These data form a "loaded" track - the trajectory of the movement of the device, the points of which are assigned additiona ... More
Presented by Ms. Natalia PUCHKOVA on 3 Jul 2017 at 18:00
The present work is devoted to the supercomputer modelling of the emission processes from the surface of nanostructures that are perspective for modern applications. Within the subject emission processes from single-wall nanotubes with diameters of nanometre range are of particular interest. These devices can be successfully used in nanolithography and non-destructive sounding of nanomaterials. Ho ... More
Presented by Mr. Ilya TOLSTOV on 4 Jul 2017 at 17:00
Numerical or semianalytical solution of problems of structural mechanics with immense number of unknowns is time-consuming process. High-accuracy solution at all points of the model is not required normally, it is necessary to find only the most accurate solution in some pre-known domains. The choice of these domains is a priori data with respect to the structure being modeled. Designers usually c ... More
Presented by Prof. Pavel AKIMOV, Prof. Marina MOZGALEVA on 3 Jul 2017 at 15:30
We present a web platform intended for sharing of software programs for computer modeling of nonlinear optics phenomena. Nonlinear optic is a rapidly evolving area of modern physical research and engineering with many important applications such as fiber-optic communications, nonlinear spectroscopy, diagnostic of non-stationary and inhomogeneous processes in plasma and gas phases, laser biomedicin ... More
Presented by Ms. Yulia DUBENSKAYA on 4 Jul 2017 at 15:15
Scientists get large amount of raw experimental data when conducting experiments. These data are analyzed using package ROOT. Processing of large data requires high-performance computers; thus, analysis of experimental data is performed on high-performance clusters. Conducting data analysis on cluster requires some preparatory work: it is necessary to download files to the cluster, write macros, ... More
Presented by Mr. Aleksandr MAYOROV on 4 Jul 2017 at 15:45