Mr
Mikhail Raportirenko
(Dubna State University)
03/07/2017, 17:00
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...
Sergey Postnov
(V.A. Trapeznikov Institute of Control Sciences)
03/07/2017, 17:00
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...
Mr
Maxim Bystrov
(Dubna State University)
03/07/2017, 17:00
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...
Prof.
Zhanlav Tugal
(Institute of Mathematics, National University of Mongolia)
03/07/2017, 17:00
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...
Dr
Ivan Georgiev
(IICT&IMI-BAS)
03/07/2017, 17:00
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...
Mr
Alexander Ayriyan
(Laboratory of Information Technologies, JINR)
03/07/2017, 17:00
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...
Mr
Purevkhuu Munkhbaatar
(Ulaanbaatar, Mongolia)
03/07/2017, 17:00
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.
Dr
Ivan Hristov
(University of Sofia / JINR)
03/07/2017, 17:00
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...
Dr
Nil Ratan Sarker
(JINR)
03/07/2017, 17:00
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,...
Mr
Tsogtsaikhan Tsolmon
(FLNP JINR)
03/07/2017, 17:00
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...
Eu. Koval
(JINR)
03/07/2017, 17:00
Ms
Irina Martynova
(student)
03/07/2017, 17:00
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...
Mr
Sumkhuu Davaasuren
(JINR)
03/07/2017, 17:00
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...
Mrs
Elena Postnova
(Institute of Control Sciences)
03/07/2017, 17:00
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.
Ms
Shushanik Torosyan
(LIT)
03/07/2017, 17:00
Ms
Natalia Puchkova
(student)
03/07/2017, 17:00
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...
