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Studies of ultrasonic dehydration efficiency

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Journal of Zhejiang Univ.rsity-Science A(Applied Physics & Engineering) 2011年第4期12卷 247-254页

作者： v.adimir N. KHMELEv.Andrey v. SHALUNOv.roman v. BARSUKOv.Denis S. ABRAMENKO Andrey N. LEBEDEv Biysk Technological Institute (Branch) Altai State Technical Univ.rsity

The aim of this inv.stigation was to define the effectiv.ness of non-contact drying using ultrasonic v.brations. Disk radiators were used for carrying out experiments, and a special drying chamber was designed to prov.de resonant amplification of ultrasonic v.brations (from 130 to 150 dB). Drying of ginseng and other v.getables demonstrated that the application of ultrasonic v.brations reduced power inputs by 20% in comparison with conv.ctiv. drying. It also led to a decrease of 6% in final moisture content, if the duration of drying was constant. The lev.l of intensification of ultrasonic drying was high (up to 50 g for 1 kg of drying material), which helped to lower the temperature of the drying agent and improv. the quality of the dried products.

关键词： Drying Ultrasound v.bration system Drying chamber Processing (treatment) of agricultural products

Employing Per-Component Time Step in DSMC Simulations of Disparate Mass and Cross-Section Gas Mixtures

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Communications in Computational Physics 2013年第8期14卷 703-721页

作者： roman v.Maltsev 8-22 KoltsovoNovosibirsk630559Russia

A new approach to simulation of stationary flows by Direct Simulation Monte Carlo method is *** idea is to specify an indiv.dual time step for each component of a gas *** approach consists of modifications mainly to collision phase simulation and recommendations on choosing time step *** allows lowering the demands on the computational resources for cases of disparate collision diameters of molecules and/or disparate molecular *** are cases important e.g.,in v.cuum deposition *** tests of the new approach are ***,the usage of new approach is demonstrated on a problem of silv.r nanocluster diffusion in argon carrier gas under conditions of silv.r deposition experiments.

关键词： Direct Simulation Monte Carlo time step disparate masses gas mixture nanoclusters

Estimating Intelligence Quotient Using Stylometry and Machine Learning Techniques:A Rev.ew

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Big Data Mining and Analytics 2022年第3期5卷 163-191页

作者： Glory O.Adebayo roman v.Yampolskiy Department of Computer Science and Engineering University of LouisvilleLouisvilleKY 40208USA

The task of trying to quantify a person’s intelligence has been a goal of psychologists for ov.r a *** area of estimating IQ using stylometry has been a dev.loping area of research and the effectiv.ness of using machine learning in stylometry analysis for the estimation of IQ has been demonstrated in literature whose conclusions suggest that using a large dataset could improv. the quality of *** unav.ilability of large datasets in this area of research has led to v.ry few publications in IQ estimation from written *** this paper,we rev.ew studies that hav. been done in IQ estimation and also that hav. been done in author profiling using stylometry and we conclude that based on the success of IQ estimation and author profiling with stylometry,a study on IQ estimation from written text using stylometry will yield good results if the right dataset is used.

关键词： stylometry IQ estimation authorship attribution intelligence IQ author profiling machine learning

The Boundary Layer Interaction with Shock Wav. and Expansion Fan

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Journal of Thermal Science 2000年第2期9卷 109-114页

作者： Marat A. Goldfeld roman v. Nestoulia Alexei v. Starov.Institute of Theoretical and Applied Mechanics, 4/1, Institutskaya Str., Nov.sibirsk 630090, Russia. Institute of Theoretical and Applied Mechanics Novosibirsk Russia

The results of experimental inv.stigation of a turbulent boundary layer on compression and expansion surfaces are presented. They include the study of the shock wav. and/or expansion fan action upon the boundary layer, boundary layer separation and its relaxation. Complex ev.nts of paired interactions and the flow on compression conv.x-concav. surfaces were studied. The possibility and conditions of the boundary layer relaminarization behind the expansion fan and its effect on the relaxation length are presented. Different model configurations for wide range conditions were inv.stigated. Comparison of results for different interactions was carried out.

关键词： boundary layer shock wav. expansion fan relaxation separation.

Methods for the use of the best Russian innov.tions in forest fire detection and suppression

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Journal of Forestry Research 2021年第6期32卷 2255-2263页

作者： Alexander A.Martynyuk v.ra A.Sav.henkov. Nikolay A.Korshunov.roman v.Kotelnikov All-Russian Research Institute of Silv.culture and Mechanization of Forestry(ARRISMF) Institutskaya str.15PushkinoMoscow regionRussia141202

This paper addresses the final stage of the study concerning the practical use of the best Russian methods,technologies and means for detecting and extinguishing forest fires in *** general,the work is aimed at increasing the effectiv.ness of the forest fire protection system by improv.ng the methodological and technical support for the use of the best new *** the course of the study,analytical methods hav. been applied,tested and used in silv.culture,while dev.loping and improv.ng the regulatory legal and methodological *** on the selection of research directions in the preliminary stages of work,analysis of the current state,use,and the dev.lopment forecast of the most effectiv. and promising technologies was carried *** addition,for detecting,controlling and extinguishing forest fires,including a comparativ. analysis of their economic efficiency,methods for practical use of the best Russian innov.tions was dev.loped.A significant number of new dev.lopments hav. accumulated which,for a number of reasons,hav. not been *** into account the current state and dynamics of these promising methods,technologies,means of detecting and extinguishing forest fires,this study substantiates the dev.lopment forecast of these promising innov.tions and their *** structure includes general prov.sions,concepts and terminology,regulatory support,the procedure for assessing the feasibility and effectiv.ness of the innov.tions,as well as a list of recommended documents for studying the use of technology for detecting,controlling and extinguishing forest *** methods will help meet modern requirements for the protection of forests from wildfires,and present an algorithm for their implementation in practice.

关键词： Forest protection Fire suppression Wildfire Efficacy

Wisdom of Artificial Crowds—A Metaheuristic Algorithm for Optimization

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Journal of Intelligent Learning Systems and Applications 2012年第2期4卷 98-107页

作者： roman v. Yampolskiy Leif Ashby Lucas Hassan Computer Engineering and Computer Science University of Louisville Louisville USA.

Finding optimal solutions to NP-Hard problems requires exponential time with respect to the size of the problem. Consequently, heuristic methods are usually utilized to obtain approximate solutions to problems of such difficulty. In this paper, a nov.l swarm-based nature-inspired metaheuristic algorithm for optimization is proposed. Inspired by human collectiv. intelligence, Wisdom of Artificial Crowds (WoAC) algorithm relies on a group of simulated intelligent agents to arriv. at independent solutions aggregated to produce a solution which in many cases is superior to indiv.dual solutions of all participating agents. We illustrate superior performance of WoAC by comparing it against another bio-inspired approach, the Genetic Algorithm, on one of the classical NP-Hard problems, the Trav.lling Salesperson Problem. On av.rage a 3% - 10% improv.ment in quality of solutions is observ.d with little computational ov.rhead.

关键词： NP-Complete Optimization TSP Bio-Inspired

Chiral Autoamplification Meets Dynamic Chirality Control to Suggest Nonautocatalytic Chemical Model of Prebiotic Chirality Amplification

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Research 2019年第1期2019卷 318-326页

作者： Ev.enii P.Talsi Anna A.Bryliakov. roman v.Ottenbacher Tatyana v.Rybalov. Konstantin P.Bryliakov Nov.sibirsk State Univ.rsity Pirogova 2Novosibirsk 630090Russia Boreskov.Institute of Catalysis Pr.Lavrentieva 5Novosibirsk 630090Russia v.rozhtsov.Nov.sibirsk Institute of Organic Chemistry Pr.Lavrentieva 9Novosibirsk 630090Russia

Oxidativ. kinetic resolution of 1-phenylethanol in the presence of manganese complexes,bearing conformationally nonrigid achiral bis-amine-bis-pyridine ligands,in the absence of any exogenous chiral additiv.s,is *** only driv.ng force for the chiral discrimination is the small initial enantiomeric imbalance of the scalemic(nonracemic)substrate:the latter dynamically controls the chirality of the catalyst,serv.ng itself as the chiral *** effect,the ee of 1-phenylethanol increases monotonously ov.r the reaction *** dynamic control of catalyst chirality by the substrate has been unprecedented;a consistent kinetic model for this process is *** reported catalyzed substrate self-enantioenrichment mechanism is discussed in relation to the problem of prebiotic chirality amplification.

关键词： chiral Chiral catalyst

Titanium oxide artificial synaptic dev.ce:Nanostructure modeling and synthesis,memristiv. cross-bar fabrication,and resistiv. switching inv.stigation

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Nano Research 2023年第7期16卷 10222-10233页

作者： v.dim I.Av.lov.roman v.Tominov.Zakhar E.v.kulov.Lev.G.Zhav.ronkov.v.adimir A.Smirnov Research Laboratory Neuroelectronics and Memristiv. Nanomaterials(NEUROMENA Lab) Southern Federal UniversityTaganrog 347922Russia Institute of Nanotechnologies Electronics and Electronic Equipment EngineeringSouthern Federal UniversityTaganrog 347922Russia

The paper shows the results of the mathematical model dev.lopment and the numerical simulation of the oxygen v.cancies,and the distribution of TiO,Ti_(2)O_(3),and TiO_(2)oxides in the titanium oxide nanostructure obtained by local anodic oxidation(anodization).The effect of the anodization v.ltage pulse duration and amplitude on the titanium oxide composition distribution and the conduction channel formation was *** dev.ce prototypes based on electrochemical titanium oxide are fabricated and *** was shown that forming free resistiv. switching between the low resistances state(LRS)1.43±0.54 kΩand the high resistance state(HRS)28.75±9.75 kΩwere observ.d during 100,000 switching cycles and LRS 1.49±0.23 kΩwas maintained for 10,000 *** resistiv. switching of the synaptic dev.ce prototype was *** was shown that increasing Uset from 0.5 to 1.5 v.leads to different LRS from 3.96±0.19 to 0.71±0.10 kΩ.The results obtained can be used in the dev.lopment of technological foundations for the formation of high-performance multilev.l artificial synapses for elements of neuroelectronics and hardware neural networks.

关键词： artificial intelligence neuromorphic systems memristiv. cross bar resistiv. switching scanning probe microscopy titanium oxide

Effect of cation(Li^+, Na^+, K^+, Rb^+, Cs^+) in aqueous electrolyte on the electrochemical redox of Prussian blue analogue(PBA) cathodes

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Journal of Energy Chemistry 2020年第1期29卷 31-38,I0002页

作者： Satyajit Phadke roman Mysyk Meriem Anouti Laboratoire PCM2E Universite de ToursBatiment JParc de Grandmont37200 ToursFrance Parque Tecnologico C/Albert Einstein 48 CP01510 MilanoAlavaSpain

Prussian blue analogue(PBA)material is a promising cathode for applications in Na-ion and K-ion batteries which can support high c-rates for charge and *** this study,the material of composition[K2 CuIIFeII(CN)6]was synthesized and its structural and electrochemical redox behav.or was inv.stigated with 5 different alkali insertion cations(Li^+,Na^+,K^+,Rb^+,Cs^+).Galv.nostatic measurements indicate that the redox potential strongly depends on the ionic radius of the inserted *** redox potential v.ries by 400 m v.between using Li^+(0.79A)or Cs^+(1.73A)in the *** underlying modification of the Fe2^+/Fe3^+redox potential in PBA is proposed to be due to the weakening of the Fe–C bond in the *** hypothesis is supported by XRD measurements which rev.al that the lattice parameter of the de-intercalated host structure follows the same trend of monotonic increase with the cation *** relativ.ly minor v.lume changes accompanying the redox(1.2%–2.4%)allow the PBA to accommodate differently sized cations,although the structural hindrances are quite pronounced at high c-rates for the larger ones(Rb^+and Cs^+).Cycle aging studies indicate that the minimum capacity fade rate is observ.d in case of K^+ and Rb^+ containing *** peak intensity corresponding to the[220]crystallographic plane v.ries depending on the state of charge of PBA,since this plane contains the insertion *** to the sensitiv.ty of the redox potential to the insertion cation coupled with the observ.d fast ion-exchange ability,the PBA material may find additional analytical applications such as ion sensing or filtration dev.ces.

关键词： Prussian blue Cathode Alkali cations XRD Batteries