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Dynamics of genetic structure of population with age structure during optimal harvest with constant quota

Dynamics of genetic structure of population with age structu...

6th Biennial Meeting of the International Environmental Modelling and Software Society: Managing Resources of a Limited Planet, iEMSs 2012

作者： Zhdanova, Oksana Frisman, Efim Laboratory of Mathematical Modelling of Ecological Sistems Institute of Automation and Control Processes FEB RAS Vladivostok Russia Institute of Complex Analysis of Regional Problems Birobidzhan Russia

ISBN: (纸本)9788890357428

Ecological and genetic consequences of optimal equilibrium harvest with constant quota in uniform and two-aged populations have been considered in this work. It has been shown analytically that maximum of equilibrium harvest income is unreachable when both age groups are harvested simultaneously. The optimal strategy of harvest is the catch of fixed portion from single age group. In addition, optimal harvest may result not only in a change in the dynamic mode of the system, but also in a considerable change in the genetic composition of the population.

关键词： Harvesting

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Research arrangement for ecological control of Peter the Great bay

Research arrangement for ecological control of Peter the Gre...

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作者： Alexanin, A.I. Kachur, V.A. Orlova, T. Yu Pavlov, A.N. Salyuk, P.A. Institute for Automation and Control Processes FEB RAS Radio 5 690041 Vladivostok Russia Institute of Marine Biology FEB RAS Palchevsky 17 690041 Vladivostok Russia Pacific Oceanological Institute FEB RAS Baltic 43 690041 Vladivostok Russia

Complexity of a task of sea ecological assessment, and first of all identification and monitoring of harmful algal bloom, compels to integrate facilities and activities of three research institutes of Far-Eastern Branch of Russian Academy of Sciences (institute for automation and control processes, institute of Marine Biology , Pacific Oceanological institute). Equipment of three centers (Satellite Center, Center of Lidar Methods for Substance Research, Center for Harmful Algal Bloom and Bio-toxicity Monitoring) was used for this purpose. Originated capabilities allowed to organize comprehensive field and laboratory investigations for solution of this task. Description of methods used and preliminary results are presented.

关键词： Marine biology

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Method of automatic formation of the underwater manipulator motion program based on noise three-dimensional models

Method of automatic formation of the underwater manipulator ...

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2023 International Conference on Ocean Studies, ICOS 2023

作者： Yukhimets, Dmitry Popova, Olivia Sevastopol State University Sevastopol Russia Institute of Automation and Control Processes Feb Ras Vladivostok Russia Far Eastern Federal University Department of Automation and Robotics Vladivostok Russia

ISBN: (纸本)9798350382457

The paper presents the method of automatic formation of the multi-link manipulator (MM) of underwater vehicle (UV) movement program using noise three-dimensional model of underwater objects obtained by their computer vision system (CVS). A feature of the proposed method is the automatic selection of a set of elementary trajectories (straight lines and circular arcs) in the trajectory of the working tool (WT) of MM laid on the surface of a three-dimensional model of an object unknown in advance. The specified allocation takes place using the RANSAC algorithm, which allows considering a large amount of noise contained in the specified model. This makes it possible to increase the accuracy of performing underwater technological operations using MM by providing more accurate stabilization of the UV during MM operation. The conducted mathematical modeling has shown that the proposed algorithm is workable and effective in conditions of high noise of three-dimensional models and can be used for automatic performing technological operations. © 2023 IEEE.

关键词： Manipulators

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Electrical conductivity study of the adsorbate-induced si(111) surface reconstructions after c60 adsorption 5th

Electrical conductivity study of the adsorbate-induced si(11...

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5th Asian School-Conference on Physics and Technology of Nanostructured Materials, ASCO-Nanomat 2020

作者： Tsukanov, Dmitry Anatolyevich Ryzhkova, Maria Valeryevna Institute of Automation and Control Processes FEB RAS Vladivostok690041 Russia Far Eastern Federal University School of Natural Sciences Vladivostok690091 Russia

ISBN: (纸本)9783035737936

Electrical conductance of Si(111)6×6-Tl and Si(111)β√3×√3-Bi surfaces has been monitored in the course of fullerenes deposition. It has been found that dependence of surface conductivity on the adsorbed C60 dose can be understood in terms of charge transfer induced by interaction of fullerene molecules and substrate which can be explained by the acceptor-like behavior of fullerenes. For the Si(111)6×6-Tl surface decreasing of conductance is connected with depletion of metallic bands of the Tl double layer. For the Si(111)β√3×√3-Bi surface the conductivity is almost unchanged with C60 dose, but due to the fact that C60 layer on this surface form close-packed hexagonal arrays in the layer-by-layer mode, it can be used as a template for alkali-induced ultra-thin fulleride formation. © 2020 Trans Tech Publications Ltd, Switzerland.

关键词： Charge transfer

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The method for estimating the maximum velocity of the AUV motion with trajectories re-planning according to their dynamic properties

The method for estimating the maximum velocity of the AUV mo...

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2021 International Conference on Automatics and Energy, ICAE 2021

作者： Yukhimets, D.A. Karmanova, S.V. Laboratory of Robotic Systems Institute of Automation and Control Processes FEB RAS 5 Radio St. Vladivostok690041 Russia Laboratory of Intelligent Control Systems Institute of Marine Technology Problems FEB RAS 5 A Sukhanov St. Vladivostok690091 Russia

The paper considers the problem of adjusting the value of a predetermined velocity required for horizontal motion of autonomous underwater vehicles (AUVs) in an environment containing obstacles, when trajectories change in order to avoid obstacles. Therewith, the velocity estimation generated during the re-planning of the AUVs motion trajectories is the maximum possible and is carried out on the basis of the AUVs dynamics model, considering their dynamic limitations and changes in the parameters of the motion trajectories. The topicality of the task is determined by the need to improve the efficiency of underwater missions in various areas of human activity (environmental monitoring, laying and maintenance of underwater communications, etc.). It depends on the mode of the AUVs motion: their velocity and parameters of the trajectories. The simulation results confirm the efficiency of the proposed method for estimating the maximum possible velocity of the AUVs motion. © 2021 institute of Physics Publishing. All rights reserved.

关键词： Autonomous underwater vehicles

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Robust Virtual Sensors Design

Robust Virtual Sensors Design

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2022 International Russian automation Conference, RusAutoCon 2022

作者： Zhirabok, Alexey Zuev, Alexander Shumsky, Alexey Far Eastern Federal University Department of Automatics and Robotics Vladivostok Russia Robotics Laborator Institute of Automation and Control Processes Feb Ras Vladivostok Russia

ISBN: (数字)9781665466554

ISBN: (纸本)9781665466554

The problem of robust virtual sensors design in linear systems under disturbance is studied. The suggested approach based on the reduced order model of the original system and singular value decomposition enables obtaining virtual sensor of minimal dimension insensitive or having minimal sensitivity to the disturbance. The problems is solved in three steps: at the first step, the linear model insensitive to the disturbance is designed;at the second step, a possibility to estimate the given variable is checked;finally, sliding mode observer is constructed. If the model insensitive to the disturbance does not exist, the minimal sensitivity is achieved. The theoretical results are illustrated by the example of three-tank system. © 2022 IEEE.

关键词： Linear systems

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Method of formation of reference control signals for redundant manipulators

Method of formation of reference control signals for redunda...

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2021 International Conference on Automatics and Energy, ICAE 2021

作者： Filaretov, V.F. Gubankov, A.S. Gornostaev, I.V. Far Eastern Federal University Department of Automation and Robotics Vladivostok690091 Russia Institute of Automation and Control Processes FEB RAS Robotics Laboratory Vladivostok690041 Russia Institute of Marine Technology Problems FEB RAS Laboratory of Robotic Systems Vladivostok690091 Russia

The paper is devoted to preservation of dynamic control accuracy of working tools of multilink manipulators when they move along arbitrary spatial trajectories, taking into account the design limits in all degrees of freedom and special cases of position of their links. Preservation of control accuracy is proposed to be ensured by eliminating reach of all degrees of freedom of the manipulators to the limits and to indicated special positions, characterized by ambiguity in solving the inverse kinematic problems of the manipulators, as well as excluding the reach of their working tools to boundaries of working area due to use of a redundant degree of freedom when approaching indicated undesirable positions. The performed simulation has confirmed efficiency of the proposed method. © 2021 institute of Physics Publishing. All rights reserved.

关键词： Degrees of freedom (mechanics)

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Creating a single texture map for the 3D model obtained by 3D scanner 27

Creating a single texture map for the 3D model obtained by 3...

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27th International Conference on Computer Graphics and Vision, GraphiCon 2017

作者： Bobkov, V. Kudryashov, A. Institute of Automation and Control Processes Far Eastern Branch of RAS Vladivostok Russia

ISBN: (纸本)9785794429633

In this paper, we propose a method for generating a single texture map for 3D model reconstructed by 3D scanner. Simple image projection results in visible seams on the surface of the scans, and all the analogues of the current method considered are highly computationally complex. The proposed method of texturing offers a solution to these problems. The texturing algorithm is based on the blending of all available textures, taking into account the weight of each pixel in each triangle, as well the overlap and observability of these triangles. The algorithmic implementation of the method is optimized to improve computational performance of the method and the quality of the generated textured triangulation model. © GraphiCon 2017 - Computer Graphics and *** right reserved.

关键词： Scanning

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Growth, structure and luminescence properties of multilayer Si/β-FeSi2NCs/Si//Si nanoheterostructures

Growth, structure and luminescence properties of multilayer ...

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作者： Galkin, Nikolay G. Chusovitin, Evgeniy A. Shamirsaev, Timur S. Gutakovski, Anton K. Latyshev, Alexander V. Institute of Automation and Control Processes FEB of RAS Radio Str. 5 Vladivostok 690041 Russia Institute of Semiconductor Physics SB of RAS Academician Lavrentiev 13 Novosibirsk 630090 Russia

Multilayer structures (up to 15 layers) with β-FeSi2 nanocrystallites (NCs) buried in silicon crystalline lattice were grown by successive repetition of reactive deposition epitaxy (RDE) or solid phase epitaxy (SPE) of thin iron film on Si(100) or Si(111) substrates and silicon molecular beam epitaxy (MBE) (100-200 nm). Cross-section high resolution transmission electron microscopy (HR TEM) images and ex situ optical and Raman spectroscopy data prove that NCs formed in silicon matrix have the structure and optical properties of β-FeSi2. The growth conditions provide no dislocations in silicon lattice were found in the course of TEM analysis. Two types of NCs depth distribution were observed: (i) layered that corresponds to iron RDE and (ii) uniform that occurs in the case of iron SPE. The uniform NCs distribution points out the fact that during a growth process NCs moves up to the surface. In spite of small nanocrystallites size (5-50 nm) and their distribution in silicon cap layers the significant photoluminescence (PL) signal at 0.8 eV was observed for all grown samples. © 2011 Elsevier B.V. All rights reserved.

关键词： Photoluminescence

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Exciton states of the optical electrons of Al 2 O 3 nanoparticles in dielectric matrix

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Pacific Science Review 2014年第3期16卷 170-177页

作者： Yu.N. Kulchin V.P. Dzyuba A.V. Amosov Institute of Automation and Control Processes FEB RAS Radio 5 690041 Vladivostok Russia

The report presents and analyzes the experimental results luminescence study alumina and theoretical results showing that the dielectric nanoparticles have the exciton states of electrons with binding energy of several electron volts, which are excited by the weak optical laser radiation. Such materials with a wide spectrum of exciton states are important for creation: exciton lasers and optical emitters; receiving and emitting optical nano-antennas; control and processing information and signals; generation low-power optical solitons; optical computers etc.

关键词： Dielectric nanoparticles Exciton state Luminescence Optical nonlinearity

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