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2024 International Conference Laser Optics, ICLO 2024

作者： Kamshilin, Alexei A. Institute of Automation and Control Processes Feb Ras Laboratory 24 Vladivostok Russia

ISBN: (纸本)9798350390674

In this work, responses of cortical vessels to the administration of a metabolic agent were measured in rats using contactless imaging photoplethysmography and laser speckle contrast imaging systems providing full field of view visualization of the blood flow. It was found that blood-flow changes detected by two systems differ significantly due to different nature of the interaction of light with tissues underlying these methods. © 2024 IEEE.

关键词： Photoplethysmography

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Formation, Phonon Structure, Transport and Thermoelectric Properties of Multilayer Heterostructures Si/NC β-FeSi2/Si/ NC β-FeSi2/.../Si(111) and Si/NC α-FeSi2/Si/ NC α-FeSi2/.../Si(111)

Formation, Phonon Structure, Transport and Thermoelectric Pr...

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2024 International Conference on Electrical Engineering and Photonics, EExPolytech 2024

作者： Galkin, Konstantin N. Kropachev, Oleg V. Goroshko, Olga A. Subbotin, Evgenii. Yu. Chernev, Igor M. Khoroshilov, Dmitrii A. Goroshko, Dmitrii L. Galkin, Nikolay G. Institute of Automation and Control Processes of Feb Ras Optics and Electrophysics Laboratory Vladivostok Russia

ISBN: (纸本)9798350388879

Multilayer (4 and 8 layers) samples with embedded β-FeSi2 and α-FeSi2 nanocrystals (NCs) on silicon-on-insulator (SOI) substrates with (100) orientation and p-type conductivity have been grown. It has been established from Raman data that β-FeSi2 NCs are formed with small portions of iron (0.5 nm) deposited at room temperature and annealed at T = 630°C with subsequent overgrowing with silicon, and α-FeSi2 NCs are formed after short-term annealing at T = 1000°C and overgrowing with silicon. The effect of doping of intermediate silicon layers on the conductivity and Seebeck coefficient in multilayers (4 and 8) in the temperature range of 80-450 K was studied. It was shown that with maximum doping of intermediate layers (1019 cm-3) with the number of layers equal to 8, the maximum Seebeck coefficient 600 μV/K and the maximum power factor 2.5 mW/(m×K2) were observed at T= 450 K, which is due to the contribution of injected holes from β-FeSi2 nanocrystals. © 2024 IEEE.

关键词： Silicon on insulator technology

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Comparison of Structure, Transport Properties and Thermoelectric Power Efficiency of Thin CrSi and CoSi Films on Si(111) and Si(100) Substrates

Comparison of Structure, Transport Properties and Thermoelec...

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2024 International Conference on Electrical Engineering and Photonics, EExPolytech 2024

作者： Goroshko, Dmitrii L. Galkin, Konstantin N. Subbotin, Evgenii. Yu. Goroshko, Olga A. Balagan, Semen A. Maslov, Andrey M. Chernev, Igor M. Kropachev, Oleg V. Khoroshilov, Dmitrii A. Dotsenko, Sergei A. Galkin, Nikolay G. Institute of Automation and Control Processes of Feb Ras Optics and Electrophysics Laboratory Vladivostok Russia

ISBN: (纸本)9798350388879

The paper compares the formation conditions, crystal structure, conductivity, and thermoelectric properties of thin CrSi and CoSi films on silicon substrates with (111) and (100) orientations. It is found that, despite the insufficiently good conductivity, the films have a noticeable Seebeck coefficient (up to 70 μV/K) in the temperature range of 200-450 K: positive for CrSi and negative for CoSi. The maximum power factor is estimated at 2 to 3 mW/(m2×K). For CoSi, first-principles calculations of the phonon structure and lattice thermal conductivity are performed, including in the form of nanowires. Estimates are made for the achievable dimensionless thermoelectric figure of merit of CoSi thin films: ZT=0.40-0.50 T=200-450 K. © 2024 IEEE.

关键词： Crystal orientation

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Mathematical Models and Algorithms of the Onboard Multiposition Integrated Inertial-Satellite Motion Detection System 30

Mathematical Models and Algorithms of the Onboard Multiposit...

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30th Saint Petersburg International Conference on Integrated Navigation Systems, ICINS 2023

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

ISBN: (纸本)9785919950950

The report outlines the problems of assimilation of navigation information delivered by spaced on-board sensors for satellite positioning of a moving object (technological platform) combined with three-component specific force vector meters (3D newtonometers). The main mathematical constructions follow the "state-measurement"paradigm and are focused on solving the inverse problems of determining the movement of technological platform as a solid body. An ellipsoidal system and other coordinate systems that determine solutions are selected as the base coordinate system. Algorithms for calculating kinematic parameters and spatial orientation of technological platform, characteristics of motion causality-forces and moments are presented. A numerical solution to the problem of vector gravimetry is proposed. An original digital test stand of the system for assimilating integrated satellite and inertial navigation information has been developed. © 2023 Concern CSRI Elektropribor, JSC.

关键词： Inverse problems

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Nonparametric Soft Sensor Development for Distillation-In-Series Unit

Nonparametric Soft Sensor Development for Distillation-In-Se...

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2024 International Conference on Industrial Engineering, Applications and Manufacturing, ICIEAM 2024

作者： Mozharovskii, Igor Shevlyagina, Svetlana Institute Of Automation And Control Processes Feb Ras Vladivostok Russia Vladivostok State University Vladivostok Russia

ISBN: (纸本)9798350395013

Oil refining is an energy-intensive process that continuously separates petroleum products. Refining companies are interested in products that meet all regulations and the efficiency of their production. It is possible to achieve cost minimization and increase the quality of the output product by using accurate soft sensors that can reliably predict the quality of the output product in real time. In this regard, research on the construction of reliable soft sensors in industrial production is necessary and relevant. To improve the estimation capability, the alternating conditional expectation algorithm, which is based on nonparametric optimal transformations, was used for nonparametric soft sensor design. As a result, the designed nonparametric soft sensor shows a better efficiency in predicting the quality index of the target distillation product with a significantly reduced root mean square error compared to multiple linear regression analysis. © 2024 IEEE.

关键词： Distillation

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SMART Standards for Industry 1

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8th International Scientific Conference on Intelligent Information Technologies for Industry, IITI 2024

作者： Gribova, Valeriya Shalfeeva, Elena Institute of Automation and Control Processes FEB RAS Vladivostok Russia Far Eastern Federal University Vladivostok Russia

ISBN: (数字)9783031776885

ISBN: (纸本)9783031776878

An urgent task for all areas of industry is to create documents with machine-readable content (SMART-standards) that can be analyzed not only by domain specialists, but also software services for solving various professional tasks in the Industry. Such documents should be equally understandable to both experts and software systems, which is generally a contradiction. The presence of a textual, i.e. human-readable document with its subsequent translation into a machine-understandable representation is quite a difficult task due to the presence of complex semantic connections in the domain. Modern methods of natural language analysis, including Large Language Models (LLM), are not able to accurately solve this problem. Therefore, an critical task is to develop new methods and approaches to ensure human and machine comprehension while minimizing possible errors when translating from one representation to another. The purpose of this work is to describe an approach for creating and translating into a machine-understandable representation of regulatory documents of the Industry for their further use in software services and systems. The authors propose a new approach for representing normative documents as two-level graphs of knowledge. LLM models, supplemented by a specialized adapter obtained as a result of additional training, serve as the basis for ensuring the transformation of one form into another form. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.

关键词： Knowledge graph

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Spatial and fine energy structure of indirect exciton

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The European Physical Journal B 2025年第1期98卷 1-9页

作者： Dzyuba, V. P. Vitrik, O. B. Institute of Automation and Control Processes of FEB RAS Vladivostok Russia

Quantum states of a spatially indirect exciton (IX), including its binding energy, are largely determined by the geometry of the spatial quantum structure consisting of (IX) and the interface (IXI). Unfortunately, this fact has been poorly studied both experimentally and theoretically. In this paper, the parameters of the IXI geometry and their effect on the IX binding energy spectrum are analytically investigated for the first time. For this purpose, the potential of the Coulomb interaction of an electron and a hole is determined using the image method. It is shown that the geometry parameters are quantized, and the effective permittivity of the interface becomes dependent on the orbital and magnetic quantum numbers of IX. A nonlinear dependence of the IX binding energy on the geometric parameters is observed. All these manifestations of the geometry are accessible to experimental observation. Each geometry has its own quantum states. This opens up the possibility of using IXI in exciton spectroscopy of the interface layer. The controllability of the IXI geometry by polarized light allows us to hope for using quantum geometric states of IX as qubits. In this work, various geometric states IX of two planar heterostructures SiO2/Si3N4 and GaAs/CdSe were modeled as an example.

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Femtosecond-laser nanostructuring of silicon thin films for optical information encryption 9

Femtosecond-laser nanostructuring of silicon thin films for ...

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Nanophotonics and Micro/Nano Optics IX 2023

作者： Syubaev, Sergey Institute of Automation and Control Processes FEB RAS 5 Radio Str. Vladivostok Russia

ISBN: (纸本)9781510667952

Pulsed laser processing matures as a powerful technique for flexible and high-performing nanostructuration. Rich physics behind the light-matter interaction allows to produce unique surface nanotextures with desired properties, beneficial for various practically-relevant applications such as optical sensing, anti-counterfeiting, realization of nanophotonic platforms and so on. Here we have applied direct femtosecond-laser printing to locally fabricate nanostructures on glass-supported amorphous-silicon thin film for realization of high-resolution (up to 60 000 dots per inch) security labels offering full-optical information encryption in several ways. Since the proposed tag represents array of close-packed amorphous-silicon hemispherical nanoparticles, the first approach for information encryption is to selectively crystallize some of nanoparticles by continuous-wave laser irradiation without morphological changes. Thus, crystalized nanoparticles ordered in a user-defined way indicate encrypted information that can be read using Raman signal intensity mapping at frequency of 519 cm−1, corresponding to the main phonon mode of crystalline silicon. The second way is to hide Mie-resonant nanoparticles between non-resonant ones. Since the latter haven’t proper size to resonantly interact with pump radiation during Raman signal mapping, encrypted information can be revealed via evident variation in Raman yield between resonant and non-resonant nanoparticles. Thereby, we demonstrated facile single step printing of anti-counterfeiting labels at resolution up to 60 000 dots per inch justifying the applicability of the developed approach for optical information encryption. © 2023 SPIE. All rights reserved.

关键词： Thin films

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Development of ROS-based Information-control System for Hybrid Unmanned Underwater Vehicle

Development of ROS-based Information-Control System for Hybr...

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2024 International Conference on Ocean Studies, ICOS 2024

作者： Yukhimets, Dmitry Belousov, Mikhail Gubankov, Anton Sevastopol State University Sevastopol Russia Institute of Automation and Control Processes FEB RAS Vladivostok Russia M.D. Ageev Institute of Marine Technology Problems Vladivostok Russia Institute of Automation and Control Processes FEB RAS Admiral G.I. Nevelskoy Maritime State University Vladivostok Russia

ISBN: (纸本)9798331532307

The article proposes a description of an information-control system designed and implemented on the hybrid uninhabited underwater vehicle MGA-7DF considering it's hardware set. The information-control system allows it to perform tasks both in autonomous and remote-controlled modes and can perform a wide range of tasks to be solved. The considered system was developed on the basis of the ROS2 platform. Using ROS2 gives ability to rebuild the system in the future and simplifying design of additional software components., that help developers to use information-control system for different tasks. A method for distributing tasks between a microcontroller and a microcomputer., and a method for organizing data transmitting between these two devices are proposed. Nodes for simulation in the CoppeliaSim environment in remote control and autonomous mode were implemented for the vehicle. System was tested using hardware set of the uninhabited underwater vehicle and simulation in the CoppeliaSim environment in remote control and autonomous mode. © 2024 IEEE.

关键词： Hybrid vehicles

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Ontological Framework for Constructing Hybrid Prognoses and Risk Assessment of Critical Conditions of Patients

Ontological Framework for Constructing Hybrid Prognoses and ...

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2023 International Russian Smart Industry Conference, SmartIndustryCon 2023

作者： Gribova, Valeriya Shalfeeva, Elena Institute of Automation and Control Processes FEB RAS Vladivostok Russia Far Eastern Federal University Vladivostok Russia

ISBN: (纸本)9781665464291

The paper describes a cloud-based ontological framework for designing hybrid cloud software systems and services for predicting patient conditions and assessing the risk of critical conditions and events. The proposed solution is based on integrated semantic models for the formation of knowledge, documents, hypotheses and reasoned decisions in medicine. These complexes combine several types of sources for the formation of knowledge bases and various methods and approaches to solving such problems (mathematical modeling, machine learning, and knowledge engineering). For a group of diseases or a section of medicine, knowledge bases are formed about diseases that have passed the verification procedure or that doctors are ready to trust a priori. The means of declarative description of the rules of interpretation of knowledge about the dynamics of the development of diseases and numerical values from predictive models are provided. © 2023 IEEE.

关键词： Decision support systems

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