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旅游纵览(下半月) 2015年第7期 257-258页

作者： skavronskaya liubov CHERNOV VLADSLAV 华南理工大学经济与贸易学院俄罗斯哈巴罗夫斯科市远东国立交通大学国际商务服务及旅游系经济学院

俄罗斯的旅游业发展迅速,旅游人才的培养出现了诸多问题。本文以俄罗斯远东国立交通大学的旅游教育为例,分析俄罗斯旅游人才培养现状,找出人才培养存在的问题,并提出解决方法和对策,希望对俄罗斯旅游教育的理论研究提供帮助。

关键词：俄罗斯交通大学远东旅游旅游人才培养教师培训机制专业课程旅游业旅游产业

Using Bayesian multitemporal classification to monitor tropical forest cover changes in Kalimantan,Indonesia

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International Journal of Digital Earth 2022年第1期15卷 2061-2077页

作者： Inggit Lolita Sari Christopher J.Weston Glenn J.Newnham liubov Volkova Faculty of Science School of Ecosystem and Forest SciencesThe University of MelbourneCreswickAustralia Research Center for Remote Sensing National Research and Innovation Agency (BRIN)JakartaIndonesia CSIRO Land and Water Clayton SouthAustralia

Significant areas of native forest in Kalimantan,on the island of Borneo,have been cleared for the expansion of plantations of oil palm and rubber.In this study multisource remote sensing was used to develop a time series of land cover maps that distinguish native forest from plantations.Using a study area in east Kalimantan,Landsat images were combined with either ALOS PALSAR or Sentinel-1 images to map four land cover classes(native forest,oil palm plantation,rubber plantation,non-forest).Bayesian multitemporal classification was applied to increase map accuracy and maps were validated using a confusion matrix;final map overall accuracy was>90%.Over 18 years from 2000 to 2018 nearly half the native forests in the study area were converted to either non-forest or plantations of either rubber or oil palm,with the highest losses between 2015 and 2016.Trending upwards from 2008 large areas of degraded or cleared forests,mapped as non-forest,were converted to oil palm plantation.Conversion of native forests to plantation mainly occurred in lowland and wetland forest,while significant forest regrowth was detected in degraded peatland.These maps will help Indonesia with strategies and policies for balancing economic growth and conservation.

关键词： Multitemporal classification Bayesian networks Landsat ALOS PALSAR sentinel-1 Indonesia

Depicting Charming Beijing With My Brush

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China News Release 2023年第3期 54-55页

作者： liubov Vladimirova 不详

My name is Liuba Vladimirova.My first name in full is liubov,which means“love.”I came from Irkutsk,Russia.I used to live in Shenyang,studying at the Liaoning University,before I moved to Beijing in 2011.I think Beijing has a little bit of everything.This city almost feels like a small country.Here you can find important historic sites,with ancient buildings that kept watch over Beijing for hundreds of years.

关键词： hundreds Beijing historic

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Antiviral adsorption activity of porous silicon nanoparticles against different pathogenic human viruses

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Bioactive Materials 2022年第1期7卷 39-46页

作者： liubov A.Osminkina Svetlana N.Agafilushkina Ekaterina A.Kropotkina Nikolay Yu Saushkin Ivan V.Bozhev Sergei S.Abramchuk Jeanne V.Samsonova Alexandra S.Gambaryan Lomonosov Moscow State University Physics DepartmentLeninskie Gory 1119991MoscowRussian Federation Institute for Biological Instrumentation of Russian Academy of Sciences 142290PushchinoMoscow RegionRussian Federation Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products Russian Academy of Sciences108819MoscowRussian Federation Lomonosov Moscow State University Faculty of ChemistryLeninskie Gory 1119991MoscowRussian Federation Quantum Technology Center Lomonosov Moscow State UniversityPhysics DepartmentLeninskie Gory 1119991MoscowRussian Federation A.N.Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences Vavilova 28119991MoscowRussian Federation

New viral infections,due to their rapid spread,lack of effective antiviral drugs and vaccines,kill millions of people every year.The global pandemic SARS-CoV-2 in 2019-2021 has shown that new strains of viruses can widespread very quickly,causing disease and death,with significant socio-economic consequences.Therefore,the search for new methods of combating different pathogenic viruses is an urgent task,and strategies based on nanoparticles are of significant interest.This work demonstrates the antiviral adsorption(virucidal)efficacy of nanoparticles of porous silicon(PSi NPs)against various enveloped and non-enveloped pathogenic human viruses,such as Influenza A virus,Poliovirus,Human immunodeficiency virus,West Nile virus,and Hepatitis virus.PSi NPs sized 60 nm with the average pore diameter of 2 nm and specific surface area of 200 m^(2)/g were obtained by ball-milling of electrochemically-etched microporous silicon films.After interaction with PSi NPs,a strong suppression of the infectious activity of the virus-contaminated fluid was observed,which was manifested in a decrease in the infectious titer of all studied types of viruses by approximately 104 times,and corresponded to an inactivation of 99.99%viruses in vitro.This sorption capacity of PSi NPs is possible due to their microporous structure and huge specific surface area,which ensures efficient capture of virions,as confirmed by ELISA analysis,dynamic light scattering measurements and transmission electron microscopy images.The results obtained indicate the great potential of using PSi NPs as universal viral sorbents and disinfectants for the detection and treatment of viral diseases.

关键词： Pathogenic human viruses Porous silicon nanoparticles Virus Antiviral activity Virucide

Magnetic force microscopy of an operational spin nano-oscillator

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Microsystems & Nanoengineering 2022年第3期8卷 247-252页

作者： Seyed Amir Hossein Banuazizi Afshin Houshang Ahmad A Awad Javad Mohammadi Johan Akerman liubov M.Belova Faculty of New Sciences and Technologies University of TehranTehranIran Materials and Nanophysics Department of Applied PhysicsSchool ofEngineering SciencesKTH Royal Institute of Technology11419 StockholmSweden Department of Physics University of Gothenburg41296 GothenburgSweden Department of Materials Science and Engineering KTHRoyal Institute of Technology10044 StockholmSweden

Magnetic force microscopy(MFM)is a powerful technique for studying magnetic microstructures and nanostructures that relies on force detection by a cantilever with a magnetic tip.The detected magnetic tip interactions are used to reconstruct the magnetic structure of the sample surface.Here,we demonstrate a new method using MFM for probing the spatial profle of an operational nanoscale spintronic device,the spin Hall nano-osillator(SHNO),which generates high-intensity spin wave auto-osillations enabling novel microwave applications in magnonics and neuromorphic computing.We developed an MFM system by adding a microwave probe station to allow electrical and microwave characterization up to 40 GHz during the MFM process.SHNOs-based on NiFe/Pt bilayers with a specific design compatible with the developed system-were fabricated and scanned using a Co magnetic force microscopy tip with 10 nm spatial MFM resolution,while a DC current sufficient to induce auto-oscillation flowed.Our results show that this developed method provides a promising path for the characterization and nanoscale magnetic field imaging of operational nano-osilators.

关键词： microwave characterization system

The Training of Future Teachers in Ukraine and China

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Frontiers of Education in China 2018年第2期13卷 288-314页

作者： liubov HUNKO Nataliia PAZIURA Katerina SHEVCHENKO Institute of Education Studies and Adult Education National Academy of Pedagogical Sciences of UkraineKyiv 02000Ukraine Department of Aviation English National Aviation University03058 KyivUkraine

This paper explores distinctive features of Bachelor of Education(B.Ed.)training at several well known Ukrainian and Chinese universities.Comparative analysis was performed taking into consideration important criteria in the educational process of the degree programs(legislative,social,organizational,technological).The Chinese experience is of particular interest to Ukrainian educators because of China’s ancient history and educational traditions.Radical changes took place in the education systems of both countries in the period of transition to a market-based economy in the 1990s and to knowledge-based societies.The contribution of the educational system to fast economic development of China has brought the county to second place among the largest economies in the world.The authors found similarities in the documentation on the organization of educational processes at the universities,the shared purpose of the training,the use of traditional forms of education,and the emphasis on the practical part of the training.At the same time,different features were found in the content of theoretical training,the organization of practical training,the approaches to innovation,the social benefits provided to teachers,the prestige of the teaching profession,principles of moral education,as well as financial and technical support.The authors considered a number of progressive ideas in China’s B.Ed.training,the implementation of which,at national and institutional levels in Ukraine,might contribute considerably to the modernization of pedagogical education.

关键词： Bachelor of Education(B.Ed.) university teacher pedagogical education comparative analysis

Additive predictions of aboveground stand biomass in commercial logs and harvest residues for rotation age Pinus radiata plantations in New South Wales,Australia

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Journal of Forestry Research 2021年第6期32卷 2265-2289页

作者： Xixi Qiao Huiquan Bi Yun Li Fabiano Ximenes Christopher JWeston liubov Volkova Mohammad Reza Ghaffariyan School of Information Science and Technology Beijing Forestry UniversityBeijing 100083People’s Republic of China Forest Science NSW Department of Primary Industries–ForestryLevel 314 Parramatta Square12 Darcy StParramattaNSW 2150Australia School of Ecosystem and Forest Sciences Faculty of ScienceThe University of MelbourneWater StreetCreswickVIC 3363Australia Australian Forest Operations Research Alliance(AFORA) University of the Sunshine CoastSippy DownsQLD 4556Australia

Two systems of additive equations were developed to predict aboveground stand level biomass in log products and harvest residue from routinely measured or predicted stand variables for Pinus radiata plantations in New South Wales,Australia.These plantations were managed under three thinning regimes or stand types before clear-felling at rotation age by cut-to-length harvesters to produce sawlogs and pulpwood.The residue material following a clear-fell operation mainly consisted of stumps,branches and treetops,short off-cut and waste sections due to stem deformity,defects,damage and breakage.One system of equations did not include dummy variables for stand types in the model specification and was intended for more general use in plantations where stand density management regimes were not the same as the stand types in our study.The other system that incorporated dummy variables was for stand type-specific applications.Both systems of equations were estimated using 61 plot-based estimates of biomass in commercial logs and residue components that were derived from systems of equations developed in situ for predicting the product and residue biomass of individual trees.To cater for all practical applications,two sets of parameters were estimated for each system of equations for predicting component and total aboveground stand biomass in fresh and dry weight respectively.The two sets of parameters for the system of equations without dummy variables were jointly estimated to improve statistical efficiency in parameter estimation.The predictive performances of the two systems of equations were benchmarked through a leave-one-plot-out cross validation procedure.They were generally superior to the performance of an alternative two-stage approach that combined an additive system for major components with an allocative system for sub-components.As using forest harvest residue biomass for bioenergy has increasingly become an integrated part of forestry,reliable estimates of product and residue biomass will assist harvest and

关键词： Plot-based biomass estimates Wood product Harvest residue Bioenergy Systems of additive and allocative equations Prediction error variance functions

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Hole-doping of mechanically exfoliated graphene by confined hydration layers

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Nano Research 2015年第9期8卷 3020-3026页

作者： Tjeerd R. J. Bollmann liubov Yu. Antipina Matthias Temmen Michael Reichling Pavel B. Sorokin Inorganic Materials Science MESA+ Institute for Nanotechnology P. O. Box 217 7500AE Enschede The Netherlands Fachbereich Physik Universitat OsnabrClck BarbarastraBe 7 OsnabrClck 49076 Germany Moscow Institute of Physics and Technology Dolgoprudny 141700 Russian Federation Siberian Federal University Krasnoyarsk 660041 Russian Federation National University of Science and Technology MISiS Moscow 119049 Russian Federation

By the use of non-contact atomic force microscopy （NC-AFM） and Kelvin probe force microscopy （KPFM）, we measure the local surface potential of mechanically exfoliated graphene on the prototypical insulating hydrophilic substrate of CAF2（111）. Hydration layers confined between the graphene and the CaF2 substrate, resulting from the graphene＇s preparation under ambient conditions on the hydrophilic substrate surface, are found to electronically modify the graphene as the material＇s electron density transfers from graphene to the hydration layer. Density functional theory （DFT） calculations predict that the first 2 to 3 water layers adjacent to the graphene hole-dope the graphene by several percent of a unit charge per unit cell.

关键词： graphene,non-contact atomic forcemicroscopy (NC-AFM,KPFM),liquid-solid interfacestructure,electronic transport innanoscale materials andstructuresgraphene,non-contact atomic forcemicroscopy (NC-AFM,KPFM),liquid-solid interfacestructure,electronic transport innanoscale materials andstructures

作为实物的俺答汗彩轴:来历、保存状态与写本学描述

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蒙古史研究

蒙古史研究 2023年 77-87页

作者： Natalia Yampolskaya liubov Kriakina 张闶俄罗斯科学院东方文献研究所中国人民大学

俄罗斯科学院东方文献研究所藏有一份非比寻常的汉蒙合璧文献,其时代可追溯至晚明时期。这是一幅插图卷轴,其中包含一份1580年俺答汗呈递给万历皇帝的岁贡表文。此贡表为双语合璧,蒙古文系从汉文翻译而来。卷轴长逾9米,其中最主要的部...

俄罗斯科学院东方文献研究所藏有一份非比寻常的汉蒙合璧文献,其时代可追溯至晚明时期。这是一幅插图卷轴,其中包含一份1580年俺答汗呈递给万历皇帝的岁贡表文。此贡表为双语合璧,蒙古文系从汉文翻译而来。卷轴长逾9米,其中最主要的部分是反映朝贡人由归化城(蒙古文:K?keqota)至紫禁城这段行程的画作。

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Churn Prediction Task in MOOC

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Journal of Computer Science Research 2019年第1期1卷 29-35页

作者： Lisitsyna liubov Oreshin SA ITMO University Kronvrkskiy pr.49Saint Petersburg197101Russia

Churn prediction is a common task for machine learning applications in business.In this paper,this task is adapted for solving problem of low efficiency of massive open online courses(only 5%of all the students finish their course).The approach is presented on course“Methods and algorithms of the graph theory”held on national platform of online education in Russia.This paper includes all the steps to build an intelligent system to predict students who are active during the course,but not likely to finish it.The first part consists of constructing the right sample for prediction,EDA and choosing the most appropriate week of the course to make predictions on.The second part is about choosing the right metric and building models.Also,approach with using ensembles like stacking is proposed to increase the accuracy of predictions.As a result,a general approach to build a churn prediction model for online course is reviewed.This approach can be used for making the process of online education adaptive and intelligent for a separate student.

关键词： Machine learning Data science Exploratory data analysis Logistic regression Gradient boosting on trees Stacking Classification Ranking