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A rigorous model for evaluating moving window soft sensors for industrial distillation processes

Chemical Engineering Transactions 2018年 69卷 487-492页

作者： Torgashov, Andrei Skogestad, Sigurd An, Dmitry Process Control Laboratory Institute of Automation and Control Process FEB RAS 5 Radio Str. Vladivostok Russia Department of Chemical Engineering Norwegian University of Science and Technology TrondheimNO-7491 Norway Gazpromneft-Omsk Refinery JSC 1 Pr. Gubkina Omsk644040 Russia

ISBN: (纸本)9788895608662

Traditionally, soft sensors are developed based on measurement data only, but here we consider a moving window (MW) soft sensor (SS) that uses data generated from a calibrated, rigorous model of the distillation columns of an FFC unit at Gazpromneft-Omsk Refinery. The contribution of the paper is that a procedure is developed for MW SS design that incorporates a priori knowledge, which is especially suitable when the training sample is small and contains measurement errors. In addition, we propose a continuous adaptation of all model parameters based on new data, instead of the usual procedure of only updating the bias. The accuracy of the predicted product quality is investigated by calculating the coefficient of determination (R2) and root mean squared error (RMSE) for the test sample. Several approaches were considered, and we found that a constrained optimization approach was superior. The constraints on the model parameters of SSs are derived from a calibrated, rigorous distillation unit model. The improved estimator quality resulted in the successful industrial application of advanced process control (APC) systems. © Copyright 2018, AIDIC Servizi S.r.l.

关键词： Distillation columns

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FtI/TiO2,Au electrodes prepared by plasma electrolytic oxidation and electron beam evaporation 4th

FtI/TiO2,Au electrodes prepared by plasma electrolytic oxida...

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4th Asian School-Conference on Physics and Technology of Nanostructured Materials, ASCO-Nanomat 2018

作者： Vasilyeva, M.S. Rudnev, V.S. Zykova, E.S. Ustinov, A.Yu. Sergeeva, K.A. Nepomnyaschiy, A.V. Lukiyanchuk, I.V. Marinina, G.I. Far Eastern Federal University 8 Sukhanova St. Vladivostok690091 Russia Institute of Chemistry FEB RAS 159 pr. 100-letya Vladivostoka Vladivostok690022 Russia Institute for Automation and Control Processes 5 Radio St. Vladivostok690041 Russia

ISBN: (纸本)9783035714777

Ti/TiO2,Au electrodes were prepared via plasma electrolytic oxidation (PEO) of Ti plate, followed by deposition of a thin (10 nm) Au layer by electron beam evaporation (EBE). The electrodes obtained were used for potentiometric indication of different types of chemical reactions. Ti/TiO2,Au electrodes showed an excellent performance for end point indication in the oxidation-reduction and complexometric titrations similar to the traditional Pt and in the acid-base titration similar to glass electrode. © 2018 Trans Tech Publications, Switzerland

关键词： Titanium oxides

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Editorial Preface

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Physics Procedia 2017年 86卷 1-2页

作者： Romashko, Roman V. School of Natural Sciences Far-Eastern Federal University Sector of Photonics and Optical Nanometrology Institute of Automation and Control Processes FEB RAS Russia

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ZnS:Mn2+ quantum dots as efficient photocatalyst for organic dye decolorization 4th

ZnS:Mn2+ quantum dots as efficient photocatalyst for organic...

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4th Asian School-Conference on Physics and Technology of Nanostructured Materials, ASCO-Nanomat 2018

作者： Sergeeva, Ksenia A. Sergeev, Aleksandr A. Kuznetsova, Yuliya V. Voznesenskiy, Sergey S. Far Eastern Federal University 8 Sukhanova St. Vladivostok690950 Russia Institute of Automation and Control Processes FEB RAS 5 Radio St. Vladivostok690041 Russia Institute of Solid State Chemistry Ural Branch Russian Academy of Sciences 91 Pervomaiskaya St. Ekaterinburg620990 Russia

ISBN: (纸本)9783035714777

Fluorescent zinc blende structured pure and Mn2+ doped ZnS quantum dots were prepared by simple aqueous based technique at room temperature. Under UV-excitation the quantum dots show photoluminescence bands at 2.1 and 3.0 eV corresponded to Mn2+ and ZnS intrinsic defect emission, respectively. The photocatalytic activity was tested for the photodegradation of methylene blue in aqueous solution. The influence of the Mn2+ concentration on the dye decolorization efficiency was studied. The highest photocatalytic degradation rate of methylene blue was obtained for ZnS quantum dots in glutathione shell doped with 0.5 at.% of Mn2+. The mechanisms of photoluminescence and photocatalytic activity were discussed. © 2018 Trans Tech Publications, Switzerland

关键词： Zinc sulfide

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Method of spatial path planning for mobile robot in unknown environment 28

Method of spatial path planning for mobile robot in unknown ...

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28th DAAAM International Symposium on Intelligent Manufacturing and automation, DAAAM 2017

作者： Yukhimets, Dmitry Zuev, Alexander Gubankov, Anton Institute of Automation and Control Processes FEB RAS Vladivostok Russia Far Eastern Federal University Vladivostok Russia

ISBN: (纸本)9783902734112

This paper deals with developing of method of spatial path planning for mobile robots of different types moving in unknown environment with obstacles. This method plans trajectories base on third-order Bezier splines using the data from onboard range sensors. It allows to automatically make decisions about the strategy of obstacles avoidance in horizontal or vertical planes considering the restrictions of mobile robots' propulsion system. Results of simulation confirm its high efficiency, low complexity and small computational capacity.

关键词： Mobile robots

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Static and dynamic sorption of free amines on surface of carbon nanotubes modified with nanolayers of polymer 4th

Static and dynamic sorption of free amines on surface of car...

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4th Asian School-Conference on Physics and Technology of Nanostructured Materials, ASCO-Nanomat 2018

作者： Galkina, Anna Sergeev, Alexander Leonov, Andrey Romashko, Roman Jiang, Jyh-Chiang Liaw, Der-Jang Institute of Automation and Control Processes FEB RAS 5 Radio St. Vladivostok690041 Russia Far Eastern Federal University 8 Sukhanova St. Vladivostok690950 Russia National Taiwan University of Science and Technology 43 Sec. 4 Keelung Rd. Taipei10607 Taiwan

ISBN: (纸本)9783035714777

In this work, we present a novel pyrene-functionalized benzoxazine (Py-BZ)/single-walled carbon nanotubes (SWNTs) complex material as an efficient luminescent chemosensor for gaseous amines. It is shown that an interaction of poly(Py-BZ)/SWCNTs nanocomposites with analyte vapor leads to the increase of the intensity of luminescence. The response of these sensors to methylamines by static and dynamic flow measurement were studied. © 2018 Trans Tech Publications, Switzerland

关键词： Chemosensor

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Thermoelectric properties of nanostructured material based on Si and GaSb 4th

Thermoelectric properties of nanostructured material based o...

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4th Asian School-Conference on Physics and Technology of Nanostructured Materials, ASCO-Nanomat 2018

作者： Goroshko, Dmitrii L. Subbotin, Evgeniy Y. Chusovitin, Evgeniy A. Balagan, Semeyon A. Galkin, Konstantin N. Dotsenko, Sergey A. Gutakovskii, Anton K. Khovaylo, Vladimir V. Usenko, Andrey A. Nazarov, Vladimir U. Galkin, Nikolay G. Institute of Automation and Control Processes FEB RAS 5 Radio St. Vladivostok690041 Russia Institute of Semiconductor Physics of SB RAS 13 pr. Lavrentieva Novosibirsk630090 Russia National University of Science and Technology "MISiS" 4 Leninskiy pr. Moscow119049 Russia Academia Sinica Research Center for Applied Sciences 128 Section 2 Academia Road Nangang Taipei11529 Taiwan

ISBN: (纸本)9783035714777

Successively forming GaSb islands by solid-phase epitaxy and covering them with a silicon layer, a nanostructured material containing 4 layers of GaSb nanocrystals (NCs) was grown on Si(111) surface. Due to a small size of the NCs (average height ~ 1.7 nm, average lateral size ~ 14 nm) and, as a consequence, to a significant quantum-size effect, a high electrical conductivity (~ 100 Ω-1·cm-1 at 600 K) together with a low thermal conductivity (~ 1 - 1.5 W·m-1·K-1 at 600 K) was obtained in the nanostructured material Si/NC_GaSb/Si. As a result, the thermoelectric figure of merit of the material has reached 0.82 at 600 K. © 2018 Trans Tech Publications, Switzerland

关键词： Silicon

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Universal algorithm for scanning probe microscopy images grain analysis of objects on the surface

Universal algorithm for scanning probe microscopy images gra...

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2017 IEEE International Conference on Cyber Conflict U.S., CyCon U.S. 2017

作者： Balagan, Semyon Chusovitin, Evgeniy Goroshko, Dmitry Goroshko, Olga Institute of Automation and Control Processes FEB RAS Vladivostok Russia Vladivostok State University Economics and Service Vladivostok Russia

ISBN: (纸本)9781538612064

Currently, scanning probe microscopy (SPM) is actively used to obtain surface data. A large number of images require a fast and high-accuracy calculation of the topographic parameters of particles on the surface. The original grain analysis algorithm based on finding a local maximum is realized by sorting an array of points forming the topography of the SPM image surface. It provides to determine various topographic characteristics of objects located on a surface (height, lateral dimensions, area, volume, etc.) © 2017 IEEE.

关键词： Scanning probe microscopy

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The Achievements of Information Technology in the Russian Far East Heat Power Industry

The Achievements of Information Technology in the Russian Fa...

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Russia and Pacific Conference on Computer Technology and Applications (RPC)

作者： Eugene Voloshin Valeri Chipulis Roman Kuznetsov Laboratory of Technical Diagnostics Institute for Automation and Control Processes FEB RAS Vladivostok Russia Department of Information Technologies and Systems Vladivostok State University Economics and Service Vladivostok Russia

ISBN: (纸本)9781538675328

The problems of energy efficiency and the prospects of information systems in the heat power industry are considered. Particular attention is paid to the framework for development of information and analytical systems. The applications of innovative information and analytical systems designed to improve reliability and energy savings are shown.

关键词： Buildings Monitoring Temperature measurement Energy consumption Cogeneration

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Two-dimensional metallic (Tl,Au)/Si(100)c(2×2): A rashba-type system with C2v symmetry

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Physical Review B 2018年第12期98卷 125428-125428页

作者： D. V. Gruznev L. V. Bondarenko A. Y. Tupchaya V. G. Kotlyar O. A. Utas A. N. Mihalyuk S. V. Eremeev A. V. Zotov A. A. Saranin Institute of Automation and Control Processes FEB RAS 690041 Vladivostok Russia School of Natural Sciences Far Eastern Federal University 690091 Vladivostok Russia Institute of Strength Physics and Materials Science SB RAS 634055 Tomsk Russia Tomsk State University 634050 Tomsk Russia

A highly ordered (Tl,Au)/Si(100)c(2×2) two-dimensional compound was found to form upon room-temperature adsorption of 1.0 monolayer (ML) of Au onto a Tl/Si(100)2×1 surface with 1.0 ML of Tl. The compound was determined to have a double-atomic-layer structure where Au and Tl atoms constitute the bottom and top layers, respectively. The compound is metallic due to the presence of the two dispersive surface-state bands crossing the Fermi level. The bands are spin split, and the peculiar feature of their spin texture is the occurrence of exclusively in-plane spin components that is originated from the C2v symmetry of the system. One of the bands has a typical vortical spin texture, whereas the other exhibits an unusual nonvortical spin texture.

关键词： Electronic structure Fermi surface Surface reconstruction Surface states 2-dimensional systems First-principles calculations Photoemission spectroscopy Scanning tunneling microscopy

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