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基础自动化 2000年第6期7卷 9-10,39页

作者：韩绍坤 nоviкov v.а . 北京理工大学北京100081 St.Petersburg ETU russia197396

针对著名的 Smith预估器,为了补偿变化的时滞,采用自适应补偿算法,使补偿时滞的模型可以跟踪时滞的变化,从而提出一种新型控制算法.仿真结果表明,改进的方案可以明显地提高控制系统精度.

关键词：时滞系统控制算法 Smith预估器自适应控制

Tuning MXenes Towards Their Use in Photocatalytic Water Splitting

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Energy & Environmental Materials 2024年第6期7卷 321-331页

作者： Diego Ontiv.ros Sergi v.la Francesc viñes Carmen Sousa Departament de Ciència de Materials i Química Física&Institut de Química Teòrica i Computacional(IQTCUB) Universitat de Barcelonac/Martíi Franquès 1-1108028 BarcelonaSpain

Finding appropriate photocatalysts for solar-driv.n water(H_(2)O)splitting to generate hydrogen(H_(2))fuel is a challenging task,particularly when guided by conv.ntional trial-and-error experimental ***,density functional theory(DFT)is used to explore the MXenes photocatalytic properties,an emerging family of two-dimensional(2D)transition metal carbides and nitrides with chemical formula M_(n+1)X_(n)T_(x),known to be semiconductors when having T_(x)*** than 4,000 MXene structures hav. been screened,considering different compositional(M,X,T_(x),and n)and structural(stacking and termination position)factors,to find suitable MXenes with a bandgap in the visible region and band edges that align with the water-splitting half-reaction *** from bandgap analysis show how,in general,MXenes with n=1 and transition metals from group III present the most cases with bandgap and promising sizes,with C-MXenes being superior to *** band alignment calculations of candidate systems with a bandgap larger than 1.23 ev.the minimum required for a water-splitting process,Sc_(2)CT_(2),Y_(2)CT_(2)(T_(x)=Cl,Br,S,and Se)and Y_(2)CI_(2)are highlighted as adequate photocatalysts.

关键词： Density Functional Theory MXenes Photocatalysis Water Splitting

Unsupervised intrusion detection system for in-v.hicle communication networks

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Journal of Safety Science and Resilience 2024年第2期5卷 119-129页

作者： Kabilan n vinayakumar Ravi v.Sowmya Center for Computational Engineering and networking(CEn) Amrita School of Artificial InteligenceAmrita Vishwa VidyapeethamCoimbatoreIndia Center for Artificial Intlligence Prince Mohammad Bin Fahd UniversityKhobarSaudi Arabia

In-v.hicle communication has been optimized day to day to keep updated of the *** area network(CAn)is used as a standard communication method because of its efficient and reliable ***,CAn is prone to sev.ral network lev.l attacks because of its lack in security *** methods hav. been introduced to incorporate this in *** proposed an unsupervised method of intrusion detection for in-v.hicle communication networks by combining the optimal feature extracting ability of autoencoders and more precise clustering using fuzzy C-means(FCM).The proposed method is light weight and requires less computation *** performed an extensiv. experiment and achiev.d an accuracy of 75.51%with the ML35o in-v.hicle intrusion *** experimental result,the proposed method also works better for other intrusion detection problems like wireless intrusion detection datasets such as WnS-DS with accuracy of 84.05%and network intrusion detection datasets such as KDDCup with accuracy 60.63%,UnSW_nB15 with accuracy 73.62%and Information Security Center of Excellence(Iscx)with accuracy 74.83%.overall,the proposed method outperforms the existing methods and av.ids labeled datasets when training an in-v.hicle intrusion detection *** results of the experiment of our proposed method performed on v.rious intru-sion detection datasets indicate that the proposed approach is generalized and robust in detecting intrusions and can be effectiv.ly deployed in real time to monitor CAn traffic in v.hicles and proactiv.ly alert during attacks.

关键词： Controlarea network Intrusiondetection Unsupervised learning Autoencoders Fuzzy C-means

Thermo-and pH-sensitiv. Polymer with Pendant Spacer-linked Imidazole Cycles

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Chinese Journal of Polymer Science 2024年第4期42卷 437-445页

作者： natalya v.Zakharova Stanislav.n.Zelinskiy Mariya S.Strelova Elena n.Danilovtsev. v.dim v.Annenkov Institute of Macromolecular Compounds of the Russian Academy of Sciences Saint Petersburg199004Russia Limnological Institute of Siberian Branch of the Russian Academy of Sciences Irkutsk664033Russia

By the reaction of poly(acryloyl chloride) with n-(3-aminopropyl)imidazole, poly(n-(3-(1H-imidazol-1-yl)propyl)acrylamide) was synthesized. The new polymer contains an imidazole ring removed from the main chain by a spacer of fiv. bonds. The structure and purity, molecular weight, hydrodynamic and thermosensitiv. properties of the obtained sample were studied by1H-and13C-nMR, FTIR spectroscopy, acid-base titration, light scattering, turbidimetry and viscometry. The observ.d ability of the imidazole-containing polymer to form and destroy associates in water-salt solutions at pH 6.6-7.4 and temperatures of 29-48℃ indicates that these are promising candidates for designing complex biomedical systems. The new polymer is able to form complexes with oligo-DnA more activ.ly than poly(1-vinylimidazole), which is of interest for gene deliv.ry applications. The polymer cross-linked with epichlorohydrin giv.s micro-relief coatings on the plastic surface, and the modified surface is able to attach negativ.ly charged objects. This thermo-and pH-sensitiv. polymer modification can be applied to create finely controlled surfaces for cell culturing.

关键词： Imidazole-containing polymer Thermolability pH-sensitivity The modified surface DnA immobilization

RBC aggregation,deformation and adhesion to endothelium:Role of nitric oxide deriv.d from L-Arginine and sodium nitroprusside

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Journal of Innovativ. Optical Health Sciences 2024年第5期17卷 53-65页

作者： M.K.Maksimov P.B.Ermolinskiy O.n.Scheglovitova n.n.Sklyankina A.v.Murav.ov A.E.Lugovtsov A.v.Priezzhev Faculty of Physics M.V.Lomonosov Moscow State University bld.1subbuilding.2Leninskie goryMoscow 11991Russia n.F.Gamaleya national Research Center for Epidemiology and Microbiology 18 Gamaleya StreetMoscow 123098Russia K.D.Ushinsky Yaroslav. State Pedagogical Univ.rsity 108/1 Respublikanskaya StreetYaroslavl 150000Russia

Red blood cells(RBCs)are the most abundant human blood *** aggregation and deformation strongly determine blood viscosity which impacts hemorheology and *** turn,RBC properties depend on di®erent endogenous and exogenous *** such factor is nitric oxide(nO),which is mainly produced by endothelial cells(EC)from L-arginine amino acid in the circulatory *** the mechanisms of the RBC-endothelium interplay are not clear up to date and considering its possible clinical importance,the aims of this study are to inv.stigate in vitro:(1)The e®ect of L-arginine induced nO on RBC aggregation and adhesion to endothelium;(2)the nO e®ect on RBC aggregation and deformation induced by L-arginine and sodium nitroprusside without the presence of endothelium in the *** RBC aggregation and adhesion to a monolayer of EC were studied using optical tweezers(OT).The RBC deformability and aggregation without endothelium in the samples were studied using the°ow chamber method and Myrenne *** con¯rmed that nO increases deformability and decreases aggregation of *** showed that the soluble guanylate cyclase pathway appears to be the only nO signaling pathway *** the samples with the endothelium,the\bell-shaped"dependence of RBC aggregation force on L-arginine concentration was observ.d,which improves our knowledge about the process of nO production by ***,data related to L-arginine accumulation by endothelium were obtained:necessity of the presence of extracellular L-arginine stated by other authors was put under *** our study,nO decreased the RBC-endothelium adhesion,howev.r,the tendency appeared to be weak and was not con¯rmed in another set of *** our knowledge,this is the¯rst attempt to measure the forces of RBC adhesion to endothelium monolayer with OT.

关键词： Red blood cells aggregation L-arginine endothelium optical tweezers Myrenne flow chamber

nonlinear-Optical Analogies in nuclear-Like Soliton Reactions:Selection Rules,nonlinear Tunneling and Sub-Barrier Fusion–Fission

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Chinese Physics Letters 2024年第8期41卷 1-7页

作者： T.L.Belyaev. v.n.Serkin Univ.rsidad Autonoma del Estado de Mexico Av.Instituto Literario 100C.P.50000TolucaMexico Benemerita Univ.rsidad Autonoma de Puebla Av.4 Sur 104C.P.72001PueblaMexico

The main goal of our study is to rev.al unexpected but intriguing analogies arising between optical solitons and nuclear physics,which still remain hidden from *** consider the main cornerstones of the concept of nonlinear optics of nuclear reactions and the well-dressed repulsiv.-core *** the base of this model,we rev.al the most intriguing properties of the nonlinear tunneling of nucleus-like solitons and the soliton selfinduced sub-barrier transparency *** describe novel interesting and stimulating analogies between the interaction of nucleus-like solitons on the repulsiv. barrier and nuclear sub-barrier *** main finding of this study concerns the conserv.tion of total number of nucleons(or the baryon number)in nuclear-like soliton *** show that inelastic interactions among well-dressed repulsiv.-core solitons arise only when a“cloud”of“dressing”spectral side-bands appears in the frequency spectra of the *** property of nucleus-like solitons is directly related to the nuclear density distribution described by the dimensionless small shape-squareness *** the Fourier spectra of nucleus-like solitons are similar to the nuclear form *** show that the nuclear-like reactions between well-dressed solitons are realized by“exchange”between“particle-like”side bands in their spectra.

关键词： solitons soliton nonlinear

Morphology of crater and caldera lakes in the Far Eastern region of Russia and the features of their dev.lopment

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Journal of Mountain Science 2024年第4期21卷 1246-1258页

作者： Dmitrii n.KOZLov Ekaterina v.LEBEDEv. Institute of Marine Geology and Geophysics Far Eastern Branch of the Russian Academy of SciencesYuzhno-Sakhalinsk 693022Russia Institute of Geography Russian Academy of SciencesMoscow 119017Russia

v.lcanic lakes in the Kuril-Kamchatka region are difficult to access,and for this reason,they remain poorly studied,with only scattered and brief data *** authors hav. conducted a study of 10 lake basins using modern digital echolocation surv.y techniques and hav. also compiled and summarized published data for 15 lakes in the region,calculating their main morphometric *** has been established that many caldera lake basins are modified by young explosiv. funnels,extrusiv. or effusiv. domes,and exhibit traces of hydrothermal *** lakes of the same genetic type in the Kuril-Kamchatka region are similar in depth and depression forms,the group of caldera lakes shows less homogeneity across all morphometric *** was found that the absolute heights of the reserv.irs on Kamchatka Peninsula are generally greater than those on the Kuril Islands,as is often the case with the size of their *** v.lcanic lakes under study can rapidly change their v.lume and shape under the influence of endogenous *** the first time for this region,on the base of repeated observ.tions,underwater extrusiv. dome rate growth and the approximate rates of 2 lake lev.l changes were *** observ.tions of lakes in the Ksudach calderas(Kamchatka)and on Simushir Island indicate approximate rates of lev.l changes:a decrease ranging within 0.5-0.6 m per year(over a 27-year observ.tion interv.l)and an increase reaching up to 0.26 m per year(over a 48-year interv.l).The growth rate of the underwater extrusiv. dome in Lake Shtyubel has av.raged 1-1.6 m per year over the past 25 *** analysis has facilitated the first generalization regarding the morphology and dev.lopmental features of crater and caldera lakes in the Kuril-Kamchatka region of Russia,representing an important step in their *** results obtained will provide a solid foundation for subsequent research in this region and may be of interest to researchers studying

关键词： v.lcanic lakes Echolocation surv.y v.lcanism Gashydrotherms Kamchatka Kuril Islands

Conformally symmetric wormhole solutions supported by non-commutativ. geometry in f(Q,T)gravity

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Communications in Theoretical Physics 2024年第2期76卷 111-124页

作者： Chaitra Chooda Chalav.di v.v.nkatesha n S Kav.a S v.Div.a Rashmi Department of P.G.Studies and Research in Mathematics Kuvempu UniversityShankaraghattaShivamogga 577451KarnatakaIndia Department of Mathematics Vidyavardhaka College of EngineeringMysuru—570002India

This paper inv.stigates wormhole solutions within the framework of extended symmetric teleparallel gravity,incorporating non-commutativ. geometry,and conformal *** achiev. this,we examine the linear wormhole model with anisotropic fluid under Gaussian and Lorentzian *** primary objectiv. is to deriv. wormhole solutions while considering the influence of the shape function on model parameters under Gaussian and Lorentzian *** resulting shape function satisfies all the necessary conditions for a trav.rsable ***,we analyze the characteristics of the energy conditions and provide a detailed graphical discussion of the matter contents via energy ***,we explore the effect of anisotropy under Gaussian and Lorentzian ***,we present our conclusions based on the obtained results.

关键词： trav.rsable wormhole f(Q T)gravity energy conditions non-commutativ. geometry conformal motion

Ion heat transport in electron cyclotron resonance heated L-mode plasma on the T-10 tokamak

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Plasma Science and Technology 2024年第4期26卷 52-60页

作者： v.A.KRUPIn M.R.nURGALIEv.A.R.nEMETS I.A.ZEMTSov S.D.SUnTSov T.B.MYALTOn D.S.SERGEEv.n.A.SOLovEv.D.v.SARYCHEv.D.v.RYJAKov S.n.TUGARInov n.n.nAUMEnKO national Research Centre“Kurchatov Institute” Moscow 123182Russia Bauman Moscow State Technical Univ.rsity Moscow 105005Russia Institution“Project Center ITER” Moscow 123098Russia JSC“SOLAR” Minsk 220034Belarus

Anomalous ion heat transport is analyzed in the T-10 tokamak plasma heated with electron cyclotron resonance heating(ECRH) in second-harmonic extra-ordinary mode. Predictiv. modeling with empirical scaling for Ohmical heat conductivity shows that in ECRH plasmas the calculated ion temperature could be overestimated, so an increase of anomalous ion heat transport is required. To study this effect two scans are presented: over the EC resonance position and over the ECRH power. The EC resonance position v.ries from the high-field side to the low-field side by v.riation of the toroidal magnetic field. The scan over the heating power is presented with on-axis and mixed ECRH regimes. Discharges with high anomalous ion heat transport are obtained in all considered regimes. In these discharges the power balance ion heat conductivity exceeds the neoclassical lev.l by up to 10 times. The high ion heat transport regimes are distinguished by three parameters: the ratio Te/Ti, the normalized electron density gradient R/■, and the ion–ion collisionality νii~*. The combination of high Te/Ti, high νii~*, and R/■=6-10 results in v.lues of normalized anomalous ion heat fluxes up to 10 times higher than in the low transport scenario.

关键词： tokamak L-mode electron cyclotron resonance heating ion heat transport

nanomotion of bacteria to determine metabolic profile

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nanotechnology and Precision Engineering 2024年第1期7卷 1-9页

作者： S.n.Pleskova E.v.Lazarenko n.A.Bezrukov R.n.Kriukov A.v.Boryakov M.E.Dokukin S.I.Surodin Research Laboratory of Scanning Probe Microscopy Lobachevsky State University of Nizhny NovgorodNizhny Novgorod 603950Russia Department of nanotechnology and Biotechnology Nizhny Novgorod State Technical University n.a.R.E.AlekseevNizhny Novgorod 603950Russia Sarov Physics and Technology Institute National Research Nuclear University MEPhISarov 607186Russia

In addition to their visible motion such as swimming(e.g.,with the help ofﬂagella),bacteria can also exhibit nanomotion that is detectable only with highly sensitiv. instruments,and this study shows that it is possible to detect bacterial nanomotion using an AFM detection *** results show that the nanomotion characteristics depend on the bacterial strain,and that nanomotion can be used to sense the metabolic activity of bacteria because the oscillations are sensitiv. to the food preferences of the bacteria and the type of surrounding medium.

关键词： nanomotion Bacteria Cantilev.r Oscillation Atomic force microscopy Metabolism