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International Conference on Engineering Technology, Engineering Education and Engineering Management, ETEEEM 2014

作者： Yukhimets, D.A. Filaretov, V.F. Mursalimov, E.Sh. Far Eastern Federal University Vladivostok Russia Institute of Automation and Control Processess FEB RAS Vladivostok Russia

ISBN: (纸本)9781138027800

In this paper the approach for development of universal platform for creating information control system of mobile robot is proposed. The main feature of this platform is possibility implementation of various control laws and providing of movement trajectory as well as implementation hardware-in-the-loop simulation mode. As an example the implementation of this information control system of small-scale mobile robot is described. © 2015 Taylor & Francis Group, London.

关键词： Mobile robots

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The synthesis of AUV high-precision path following control system on the base of PD-controller

The synthesis of AUV high-precision path following control s...

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International Conference on Computer, control, Informatics and Its Applications (IC3INA)

作者： Vladimir Filaretov Dmitry Yukhimets Department of Automation and Control Far Eastern Federal University Vladivostok Russia Robotic Laboratory Institute of Automation and Control Processes FEB RAS Vladivostok Russia

ISBN: (纸本)9781509023240

Autonomous underwater vehicle (AUV) are complex nonlinear dynamic objects with variable and uncertain parameters, operating in conditions of significant interacting between their degrees of freedom in the presence of external influences. For high-precision path-control of AUV the control system (CS) consisting of two loops is offered in this paper. First loop is the loop of tracking a target point and second loop is the loop of correction of position of this point. Thus, for improvement of characteristics of this CS in paper the method of synthesis of controller of target point position based on Lyapunov method is offered and the features of its implementation as part of on-board AUV CS are described. Performed mathematical simulation shows that the proposed AUV path controller provides highly accurate motion AUV for given spatial trajectories in the presence of external disturbances, as well as changing the parameters of the AUV.

关键词： Trajectory Mathematical model Computers Oscillators Regulators Hydrodynamics

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On numerical model of one-dimensional time-dependent gas flows through bed of encapsulated phase change material

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Journal of Physics: Conference Series 2017年第1期894卷

作者： Lutsenko, N A Fetsov, S S Institute of Automation and Control Processes FEB RAS Vladivostok 690041 Russia Far Eastern Federal University Vladivostok 690950 Russia

Mathematical model and numerical method are proposed for investigating the one-dimensional time-dependent gas flows through a packed bed of encapsulated Phase Change Material (PCM). The model is based on the assumption of interacting interpenetrating continua and includes equations of state, continuity, momentum conservation and energy for PCM and gas. The advantage of the method is that it does not require predicting the location of phase transition zone and can define it automatically as in a usual shock-capturing method. One of the applications of the developed numerical model is the simulation of novel Adiabatic Compressed Air Energy Storage system (A-CAES) with Thermal Energy Storage subsystem (TES) based on using the encapsulated PCM in packed bed. Preliminary test calculations give hope that the method can be effectively applied in the future for modelling the charge and discharge processes in such TES with PCM.

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RHEED study of the texture in polycrystalline films of magnetite grown on oxidized silicon surface 3rd

RHEED study of the texture in polycrystalline films of magne...

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3rd Asian School-Conference on Physics and Technology of Nanostructured Materials, ASCO-Nanomat 2015

作者： Balashev, Vyacheslav V. Vikulov, Victor A. Pisarenko, Tatiana A. Korobtsov, Vladimir V. Institute of Automation and Control Processes FEB RAS 5 Radio St Vladivostok690041 Russia Far Eastern Federal University School of Natural Sciences Office L457 FEFU Laboratory 6 Ajax St. Vladivostok690922 Russia

ISBN: (纸本)9783038356486

Polycrystalline films of magnetite (Fe3O4) with thickness of 75 nm were grown on SiO2/Si(001) surface by reactive deposition of Fe in O2 atmosphere. The growth of Fe3O4 films was carried out with the different oxygen pressures. The structure of films was monitored by reflection high-energy electron diffraction (RHEED) during the film growth. It was found that there is a range of oxygen pressure in which the growth of only textured Fe3O4 film takes place. Reactive deposition of Fe at lower oxygen pressure results in a growth of Fe3O4 film without a texture. In contrast at the deposition with higher oxygen pressure the texture in the Fe3O4 film remains but the appearance of hematite (α-Fe2O3) is observed. © 2016 Trans Tech Publications, Switzerland.

关键词： Crystal structure

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Fabrication of porous microrings via laser printing and ion-beam post-etching

arXiv

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arXiv 2017年

作者： Syubaev, S. Nepomnyashchiy, A. Mitsai, E. Pustovalov, E. Vitrik, O. Kudryashov, S. Kuchmizhak, A. School of Natural Sciences Far Eastern Federal University 6 Sukhanova Str. Vladivostok690041 Russia Institute for Automation and Control Processes FEB RAS 5 Radio Str. Vladivostok690041 Russia Lebedev Physical Institute Russian Academy of Sciences 53 Leninsky prospect Moscow119991 Russia ITMO University 49 Kronverksky prospect St. Petersburg197101 Russia

Pulsed-laser dry printing of noble-metal microrings with a tunable internal porous structure, which can be revealed via an ion-beam etching post-procedure, was demonstrated. Abundance and average size of the pores inside the microrings were shown to be tuned in a wide range by varying incident pulse energy and a nitrogen doping level controlled in the process of magnetron deposition of the gold film in the appropriate gaseous environment. The fabricated porous microrings were shown to provide many-fold near-field enhancement of incident electromagnetic fields, which was confirmed by mapping of the characteristic Raman band of a nanometer-thick covering layer of Rhodamine 6G dye molecules and supporting finite-difference time-domain calculations. The proposed laser-printing/ion-beam etching approach is demonstrated to be a unique tool aimed at designing and fabricating multifunctional plasmonic structures and metasurfaces for spectroscopic bioidentification based on surface-enhanced infrared absorption, Raman scattering and photoluminescence detection schemes. Copyright © 2017, The Authors. All rights reserved.

关键词： Fabrication

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Method of Combination of Three-Dimensional Models of Details with Their CAD-Models at the Presence of Deformations

Method of Combination of Three-Dimensional Models of Details...

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IEEE International Conference on automation Science and Engineering

作者： Vladimir F. Filaretov Dmitry A. Yukhimets Alexander V. Zuev Anton S. Gubankov Eduard Sh. Mursalimov Department of Automation and Control Far Eastern Federal University Vladivostok 690041 Russia Robotics Laboratory Institute of Automation and Control Processes FEB RAS Vladivostok 690041 Russia

ISBN: (纸本)9781509024100

In this work the combination method of three-dimensional models of processed details with their reference CAD-models when these details have unknown in advance deformation is proposed. This method assumes preliminary transformation of models to clouds of points, special density increasing of these clouds and their iterative combination by means of ICP (Iterative Closest Points) algorithm. Model example demonstrates the efficiency and effectiveness of proposed approach.

关键词： Three-dimensional displays Deformable models Iterative closest point algorithm Solid modeling automation Computational modeling Algorithm design and analysis

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Kinetics of the fractal mesodefect structure of melt-spun Fe70Cr15B15(Sn) alloys during annealing 3rd

Kinetics of the fractal mesodefect structure of melt-spun Fe...

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3rd Asian School-Conference on Physics and Technology of Nanostructured Materials, ASCO-Nanomat 2015

作者： Pisarenko, T.A. Kraynova, G.S. Frolov, A.M. Far Eastern Federal University School of Natural Sciences Office L457 FEFU Laboratory 6 Ajax St. Vladivostok690922 Russia Institute for Automation and Control Process FEB RAS 5 Radio St Vladivostok690041 Russia

ISBN: (纸本)9783038356486

We have studied the effect of tin microalloying on the kinetics of the fractal mesodefect structure of melt-spun Fe70Cr15B15(Sn) alloys during thermal loading. It is established that the morphology evolution of ribbon interfaces correlates with the kinetics of physical properties. Symmetry character of melt-spun alloys is identified by the form of fractal dimensionality spectrum. Reduction of the fractal dimension is observed at stages of both vitrification and nanocrystallization. Residual alloying by tin of the contact interface of ribbon changes a topology of the localized states that lowers the temperature of vitrification. © 2016 Trans Tech Publications, Switzerland.

关键词： X ray diffraction

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Direct laser printing of chiral plasmonic nanojets by vortex beams

arXiv

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arXiv 2017年

作者： Syubaev, S. Zhizhchenko, A. Porfirev, A. Pustovalov, E. Vitrik, O. Kulchin, Yu. Khonina, S. Kudryashov, S. Kuchmizhak, A. School of Natural Sciences Far Eastern Federal University 6 Sukhanova Str. Vladivostok690041 Russia Institute for Automation and Control Processes FEB RAS 5 Radio Str. Vladivostok690041 Russia Samara National Research University Moskovskoe shosse 34 Samara443086 Russia Lebedev Physical Institute Leninskiy prospect 53 Moscow119991 Russia ITMO University St.-Petersburg197101 Russia

Donut-shaped laser radiation, carrying orbital angular momentum, namely optical vortex, recently was shown to provide vectorial mass transfer, twisting transiently molten material and producing chiral micro-scale structures on surfaces of different bulk materials upon their resolidification. In this paper, we show for the first time that nanosecond laser vortices can produce chiral nanoneedles (nanojets) of variable size on thin films of such plasmonic materials, as silver and gold films, covering thermally insulating substrates. Main geometric parameters of the produced chiral nanojets, such as height and aspect ratio, were shown to be tunable in a wide range by varying metal film thickness, supporting substrates, and the optical size of the vortex beam. Donut-shaped vortex nanosecond laser pulses, carrying two vortices with opposite handedness, were demonstrated to produce two chiral nanojets twisted in opposite directions. The results provide new important insights into fundamental physics of the vectorial laser-beam assisted mass transfer in metal films and demonstrate the great potential of this technique for fast easy-to-implement fabrication of chiral plasmonic nanostructures. Copyright © 2017, The Authors. All rights reserved.

关键词： Metallic films

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The formation of motion laws for mechatronics objects along the paths with the desired speed

The formation of motion laws for mechatronics objects along ...

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International Conference on Computer, control, Informatics and Its Applications (IC3INA)

作者： V. Filaretov A. Gubankov I. Gornostaev Department of Automatization and Control Far Eastern Federal University Vladivostok Russia Robotics Laboratory Institute of Automation and Control Processes FEB RAS Vladivostok Russia

ISBN: (纸本)9781509023240

This report presents the results of the development of method of forming of motion laws for mechatronics objects (MO) along trajectories with the desired speed. Desired trajectories are described by third order parametric splines. Analytical expressions describing the dependence of the rate of change of the parameter from the laws of change of given speed and information about the parametric form of a trajectories are obtained. They allow to move the program point along the trajectory accurately at a given speed. The described approach does not require iterative calculations and allows to perform all necessary calculations in real-time even on low-power onboard robots' computers.

关键词： Trajectory Splines (mathematics) Robot kinematics Mechatronics Acceleration Service robots

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Patching holes in the joint set of triangulation grids 25

Patching holes in the joint set of triangulation grids

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25th International Conference on Computer Graphics and Vision, GraphiCon 2015

作者： Kudryashov, A.P. Bobkov, V.A. Institute of Automation and Control Processes FEB RAS Vladivostok Russia

ISBN: (纸本)9785888350416

We present a method for building and texturing a continuous watertight mesh using a hole filling algorithm based on volume diffusion. A multilevel octree-based technique with the weight function being built along both the normal and line of view is proposed. A parallelized computational procedure for a multicore processor is presented which enables significant reduction in computation time. © 2015 institute of Physics and Technology.

关键词： Image reconstruction

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