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Research 2019年第1期2019卷 318-326页

作者： Evgenii P.Talsi Anna A.Bryliakova roman v.ottenbacher Tatyana v.Rybalova Konstantin P.Bryliakov Novosibirsk State University Pirogova 2Novosibirsk 630090Russia Boreskov Institute of Catalysis Pr.Lavrentieva 5Novosibirsk 630090Russia vorozhtsov Novosibirsk Institute of Organic Chemistry Pr.Lavrentieva 9Novosibirsk 630090Russia

Oxidative 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 additives,is *** only driving 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,serving itself as the chiral *** effect,the ee of 1-phenylethanol increases monotonously over 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

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 individual 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 vacuum deposition *** tests of the new approach are ***,the usage of new approach is demonstrated on a problem of silver nanocluster diffusion in argon carrier gas under conditions of silver 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 Review

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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 over a *** area of estimating IQ using stylometry has been a developing area of research and the effectiveness 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 improve the quality of *** unavailability of large datasets in this area of research has led to very few publications in IQ estimation from written *** this paper,we review studies that have been done in IQ estimation and also that have 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

Methods for the use of the best Russian innovations 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 vera A.Savchenkova Nikolay A.Korshunov roman v.Kotelnikov All-Russian Research Institute of Silviculture 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 effectiveness of the forest fire protection system by improving the methodological and technical support for the use of the best new *** the course of the study,analytical methods have been applied,tested and used in silviculture,while developing and improving 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 development forecast of the most effective and promising technologies was carried *** addition,for detecting,controlling and extinguishing forest fires,including a comparative analysis of their economic efficiency,methods for practical use of the best Russian innovations was developed.A significant number of new developments have accumulated which,for a number of reasons,have 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 development forecast of these promising innovations and their *** structure includes general provisions,concepts and terminology,regulatory support,the procedure for assessing the feasibility and effectiveness of the innovations,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

Studies of ultrasonic dehydration efficiency

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

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

The aim of this investigation was to define the effectiveness of non-contact drying using ultrasonic vibrations. Disk radiators were used for carrying out experiments, and a special drying chamber was designed to provide resonant amplification of ultrasonic vibrations (from 130 to 150 dB). Drying of ginseng and other vegetables demonstrated that the application of ultrasonic vibrations reduced power inputs by 20% in comparison with convective drying. It also led to a decrease of 6% in final moisture content, if the duration of drying was constant. The level 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 improve the quality of the dried products.

关键词： Drying Ultrasound vibration system Drying chamber Processing (treatment) of agricultural products

Titanium oxide artificial synaptic device:Nanostructure modeling and synthesis,memristive cross-bar fabrication,and resistive switching investigation

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

作者： vadim I.Avilov roman v.Tominov Zakhar E.vakulov Lev G.Zhavoronkov vladimir A.Smirnov Research Laboratory Neuroelectronics and Memristive 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 development and the numerical simulation of the oxygen vacancies,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 voltage pulse duration and amplitude on the titanium oxide composition distribution and the conduction channel formation was *** device prototypes based on electrochemical titanium oxide are fabricated and *** was shown that forming free resistive switching between the low resistances state(LRS)1.43±0.54 kΩand the high resistance state(HRS)28.75±9.75 kΩwere observed during 100,000 switching cycles and LRS 1.49±0.23 kΩwas maintained for 10,000 *** resistive switching of the synaptic device 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 development of technological foundations for the formation of high-performance multilevel artificial synapses for elements of neuroelectronics and hardware neural networks.

关键词： artificial intelligence neuromorphic systems memristive cross bar resistive 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 behavior was investigated with 5 different alkali insertion cations(Li^+,Na^+,K^+,Rb^+,Cs^+).Galvanostatic measurements indicate that the redox potential strongly depends on the ionic radius of the inserted *** redox potential varies 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 reveal that the lattice parameter of the de-intercalated host structure follows the same trend of monotonic increase with the cation *** relatively minor volume 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 observed in case of K^+ and Rb^+ containing *** peak intensity corresponding to the[220]crystallographic plane varies depending on the state of charge of PBA,since this plane contains the insertion *** to the sensitivity of the redox potential to the insertion cation coupled with the observed fast ion-exchange ability,the PBA material may find additional analytical applications such as ion sensing or filtration devices.

关键词： Prussian blue Cathode Alkali cations XRD Batteries

Management of neurosurgical patients during coronavirus disease 2019 pandemics:The Ljubljana,Slovenia experience

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World Journal of Clinical Cases 2022年第15期10卷 4726-4736页

作者： Tomaz velnar roman Bosnjak Department of Neurosurgery University Medical Centre LjubljanaLjubljana 1000Slovenia

The novel coronavirus disease 2019(COvID-19)is an emerging disease,caused by severe acute respiratory syndrome *** bears unique biological characteristics,clinical symptoms and imaging manifestations,therefore presenting an important and urgent threat to global *** a result,a new public health crisis arose,threatening the world with the spread of the 2019 novel *** the maximal worldwide public health responses aimed at containing the disease and delaying its spread,many countries have been confronted with a critical care crisis,and even more,countries will almost certainly *** Slovenia,the COvID-19 has struck the health system immensely and among all the specialities,neurosurgery has also been experiencing difficulties in the service,not only in regular,elective surgeries but especially during *** management of these neurosurgical patients has become more difficult than *** describe our protocol in the management of neurosurgical patients in the University Medical Centre Ljubljana,Slovenia and how neurosurgical pathology was tackled during the pandemics.

关键词： Coronavirus disease 2019 Pandemic neurosurgery Patient management Antivirus protocol Ljubljana

Pathological and therapeutic interactions between bacteriophages,microbes and the host in inflammatory bowel disease

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World Journal of Gastroenterology 2015年第40期21卷 11321-11330页

作者： Janka Babickova roman Gardlik Institute of Molecular Biomedicine Faculty of MedicineComenius University Center for Molecular Medicine Slovak Academy of Sciences

The intestinal microbiome is a dynamic system of interactions between the host and its microbes. Under physiological conditions,a fine balance and mutually beneficial relationship is present. Disruption of this balance is a hallmark of inflammatory bowel disease(IBD). Whether an altered microbiome is the consequence or the cause of IBD is currently not fully understood. The pathogenesis of IBD is believed to be a complex interaction between genetic predisposition,the immune system and environmental factors. In the recent years,metagenomic studies of the human microbiome have provided useful data that are helping to assemble the IBD puzzle. In this review,we summarize and discuss current knowledge on the composition of the intestinal microbiota in IBD,hostmicrobe interactions and therapeutic possibilities using bacteria in IBD. Moreover,an outlook on the possible contribution of bacteriophages in the pathogenesis and therapy of IBD is provided.

关键词： Microbiota Inflammatory bowel disease Gut Bacterio

HBv endemicity in Mexico is associated with HBv genotypes H and G

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World Journal of Gastroenterology 2013年第33期19卷 5446-5453页

作者： Sonia roman Arturo Panduro Department of Molecular Biology in Medicine Civil Hospital of Guadalajara"Fray Antonio Alcalde"and Health Sciences CenterUniversity of Guadalajara

Hepatitis B virus(HBv)genotypes have distinct genetic and geographic diversity and may be associated with specific clinical characteristics,progression,severity of disease and antiviral ***,we provide an updated overview of the endemicity of HBv genotypes H and G in *** genotype H is predominant among the Mexican population,but not in Central *** geographic distribution is related to a typical endemicity among the Mexicans which is characterized by a low hepatitis B surface antigen seroprevalence,apparently due to a rapid resolution of the infection,low viral loads and a high prevalence of occult B *** chronic infections,genotype H is detected in mixtures with other HBv genotypes and associated with other co-morbidities,such as obesity,alcoholism and co-infection with hepatitis C virus or human immunodeficiency *** carcinoma prevalence is ***,antiviral therapy may differ significantly from the standard guidelines established *** high prevalence of HBv genotype G in the Americas,especially among the Mexican population,raises new questions regarding its geographic origin that will require further investigation.

关键词： Hepatitis B virus genotypes Hepatitis B virus genotype H Hepatitis B virus genotype G Molecular epidemiology Mexico Antiviral therapy Severity of liver disease Clinical outcome