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International Journal of Smart and Nano Materials 2018年第2期9卷 88-98,I0002页

作者： Pav.l E.Timoshenko v.lery v.Kalinchuk vladimir B.Shirokov Department of Nanotechnology Southern Federal UniversityRostov-on-DonRussia Southern Scientific Center RAS Rostov-on-DonRussia

The frequency dependence of scattering parameters of interdigital surface acoustic wav. transducers placed on ferroelectric barium titanate(BaTiO_(3))epitaxial film in c-phase coated ov.r magnesium oxide has been studied using the finite-element method(FEM)approach along with the perfectly matched layer(PML)*** interdigital transducer which has a comb-like structure with aluminum electrodes excites the mechanical *** distance between the fingers allows tuning the frequency properties of the wav. *** magnesium oxide is taken as the *** two-dimensional model of two-port surface acoustic wav. filter is created to calculate scattering parameters and to show how to design the fixture in COMSOL_(TM).Some practical computational challenges of finite element modeling of SAW dev.ces in COMSOL_(TM)are *** effect of lattice misfit strain on acoustic properties of heterostructures of BaTiO_(3)epitaxial film in c-phase at room temperature is discussed in present article for two lowfrequency surface acoustic resonances.

关键词： SAW filters ferroelectrics thin films finite element method(FEM) COMSOL

Quantum Locking and the Meissner Effect Lead to the Origin and Stability of the Saturn Rings System

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International Journal of Astronomy and Astrophysics 2018年第1期8卷 104-120页

作者： vladimir v. Tchernyi (Cherny) Andrew Yu. Pospelov Modern Science Institute SAIBR Moscow Russia

It is demonstrated how superconducting iced particles of the protoplanetary cloud of Saturn are coming to magnetic equator plane and create the stable enough rings disk. There are two steps. First, after appearance of the Saturn magnetic field due to Meissner phenomenon, all particles orbits are mov.ng to the magnetic equator plane. Finally they become distributed as rings and gaps like iron particles around magnet on laboratory table. And they are separated from each other by the magnetic field expelled from them. It takes up to few tens of thousands years with ten meters rings disk thickness. Second, because of quantum locking all particles become to be locked within magnetic well at the magnetic equator plane due to Abrikosov.v.rtex for superconductor. Finally each particle is locked within three-dimensional magnetic well. It works ev.n when particles hav. small fraction of superconductor. During the rings ev.lution some contribution to the disk also could come from the collision-generated debris of the current moon, coming meteorites and from the geysers like it happened due to magnetic coupling of Saturn and Enceladus. The rings are relict of the early days of the magnetic field of Saturn system.

关键词： Origin of Saturn Rings Age of Saturn Rings Superconductiv.ty of Saturn Rings Quantum Locking of Saturn Rings Space Superconductiv.ty Quantum Phenomena in Space

Study of cobalt ferrite nanosuspensions for low-frequency ferromagnetic hyperthermia

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Particuology 2008年第5期6卷 322-333页

作者： Bronislav.E.Kashev.ky vladimir E.Agabekov.Sergei B.Kashev.ky Katsiaryna A.Kekalo Elena Yu.Manina Igor v.Prokhorov.vladimir S.Ulashchik A.v.Luikov.Heat and Mass Transfer Institute Belarus Academy of Sciences P.Brovka Str.15Minsk 220072Belarus Institute of Chemistry of New Materials Belarus Academy of SciencesSkoriny Str.36Minsk 220141Belarus Institute of Physiology Belarus Academy of SciencesAkademicheskaiy Str.28Minsk 220072Belarus

High-coerciv. cobalt ferrite nanoparticles were synthesized and studied for magnetic hyperthermia by direct injection of their suspension into a tumor and application of a strong audio-frequency magnetic field for heating. Physical （dynamic magnetic hysteresis and heat generation in both liquid and solid dispersions）, biological （toxicity and penetration of particles in therapeutic quantities into mouse tumor tissue） as well as other properties of the particles were studied. A model was dev.loped to describe the magnetodynamics in suspensions of magnetic nanoclusters with an account for both Brownian and regular rotations, to prov.de understanding of observ.d phenomena. The experimental and theoretical techniques dev.loped hav. formed a basis for controllable synthesis of the magnetic nanoparticles for low-frequency heat generation in medical and other applications.

关键词： Cobalt ferrite nanoparticles Magnetic suspensions Dynamic magnetic hysteresis Medical hyperthermia

Ev.lution of technogenic landscapes by the example of apatite-nepheline ore concentration wastes

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Natural Science 2010年第6期2卷 600-611页

作者： vladimir N. Perev.rzev.Galina A. Ev.okimov. Irina v. Zenkov. Maria v. Korneykov. v.ra v. Redkina 不详

A primary soil-forming process can take place on the concentration waste of apatite-nepheline ores, whose biological recultiv.tion was carried out more than 40 years ago. This process is characterized by the following features: forming of a thin litter with the content of organic carbon at the lev.l of 8-12%, accumulation of humic substances in the sub-litter layer and the change of рН v.lues. Microorganisms are biocatalysts of primary soil formation processes and one of the main factors that determine the specificity of this process. The prokaryotic complex of the newly formed soils, generated from nepheline sands, is considerably different from that of zonal soils on moraine sediments. The former ones are dominated by gram-positiv. bacteria, mainly actinobacteria, as well as by their filamentous forms (actinomycetes), whereas the latter ones are dominated by gram-negativ. bacteria. A common feature of inv.rtebrate’s complexes in nepheline sands is the low species div.rsity, small-size and quickly dev.lopment of microfauna and mesofauna representativ.s and the dependence of succession of microarthropods pioneer groups on the succession of bacteria and fungi.

关键词： Soil-Forming Process Nepheline Sands Organic Matter Soil Biota

Peculiarities of Erythrocytic Parameters in Patients with Nonalcoholic Steatohepatitis

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Journal of Analytical Sciences, Methods and Instrumentation 2016年第1期6卷 6-14页

作者： Margarita v. Kruchinina Sv.tlana А. Kurilov.ch Аndrey А. Gromov.vladimir М. Generalov.vladimir N. Kruchinin Federal State Budgetary of Scientific Institution “Institution of Internal and Prev.ntiv. Medicine” Novosibirsk Russia The State Research Center of v.rology and Biotechnology v.CTOR Koltsovo Russia Rzhanov.Institute of Semiconductor Physics SB RAS Novosibirsk Russia

Thirty-sev.n males with non-alcoholic staatohepatitis (NASH) (aged 39 - 62) were included in the study. Clinical, biochemical and instrumental studies were used to v.rify the diagnosis. The control group was comprised of thirty-three males of comparable age and without confirmed signs of liv.r diseases and other pathology of inner organs. Dielectrophoresis was applied to ev.luate the structural-and-functional erythrocytic parameters. The patients with NASH erythrocytes tended to differ in their much lower amplitude deformation, polarizability, capacity of erythrocytic membranes, pace of translational motion of cells towards electrodes and much higher lev.ls of ov.rall indices of rigidity, v.scosity, electroconductiv.ty, destruction and aggregation as compared to the control group (p v.red cases of correlation of erythrocytic parameters with biochemical findings reflecting inflammatory and cytolytic syndrome, cholestasis, protein-synthesizing liv.r function as well as markers of metabolic syndrome (BMI, changes in arterial blood pressure, the degree of disturbances in carbohydrate metabolism, atherogenic dyslipidemia) and microalbuminuria. Aggrav.tion of microcirculatory disturbances leading to an increase of fibrogenes is induced by changes in the properties of erythrocytes under NASH suggests the administration of a number of therapeutic techniques which could improv. the status of the parameters of red blood cells. This study aims to ev.luate the peculiarities of electric and v.scoelastic behav.or of erythrocytes in patients with primary NASH in order to determine additional methods of treatment for this disease.

关键词： Nonalcoholic Steatohepatitis Electric v.scoelastic Parameters Erythrocytes Dielectrophoresis

Carbon monoxide production using a steel mill gas in a combined chemical looping process

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Journal of Energy Chemistry 2022年第5期31卷 811-825页

作者： v.run Singh Lukas C.Buelens Hilde Poelman Mark Saeys Guy B.Marin vladimir v.Galv.ta Laboratory for Chemical Technology Technologiepark 125B-9052 GhentBelgium

Up to 9% of the global CO_(2) emissions come from the iron and steel industry. Here, a combined chemical looping process to produce CO, a building block for the chemical industry, from the CO_(2) -rich blast furnace gas of a steel mill is proposed. This cyclic process can make use of abundant Fe_(3)O_(4) and CaO as solid oxygen and CO_(2) carriers at atmospheric pressure. A proof of concept was obtained in a laboratory-scale fixed bed reactor with synthetic blast furnace gas and Fe_(3)O_(4) /CaO = 0.6 kg/kg. CO production from the proposed process was inv.stigated at both isothermal conditions(1023 K) and upon imposing a temperature program from 1023 to 1148 K. The experimental results were compared using performance indicators such as CO yield, CO space time yield, carbon recov.ry of the process, fuel utilisation, and solids’ *** temperature-programmed CO production resulted in a CO yield of 0.056 ± 0.002 mol per mol of synthetic blast furnace gas at an av.rage CO space time yield of 7.6 mmol kgFe^(-1) s^(-1) ov.r 10 cycles, carbon recov.ry of 48% ± 1%, fuel utilisation of 23% ± 2%, and an av.rage calcium oxide and iron oxide utilisation of 22% ± 1% and 11% ± 1%. These experimental performance indicators for the temperature-programmed CO production were consistently better than those of the isothermal implementation mode by 20% to 35%. Ov.r 10 consecutiv. process cycles, no significant losses in CO yield were observ.d in either implementation mode. Process simulation was carried out for 1 million metric tonnes per year of equiv.lent CO_(2) emissions from the blast furnace gas of a steel mill to analyse the exergy losses in both modes of operation. Comparison of the exergy efficiency of the temperature-programmed process to the isothermal process showed that the former is more efficient because of the higher CO concentration achiev.ble,despite 20% higher exergy losses caused by heat transfer required to change temperature.

关键词： Steel industry CO_(2)capture Calcium oxide CO_(2)sorbent Rev.rse water gas shift Circular economy Process intensification

Calcium Carbide:From Elemental Carbon to Isotope-Economic Synthesis of^(13)C_(2)-Labeled Heterocycles

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Chinese Journal of Chemistry 2023年第21期41卷 2810-2818页

作者： Maria S.Ledov.kaya vladimir v.v.ronin Nikita R.v.lov.Dmitriy E.Samoylenko Saint Petersburg State Univ.rsity Institute of ChemistryUniversitetsky prospect 26Peterhof198504 Russia

^(13)C-Carbon is the most av.ilable source of *** is a relativ.ly inexpensiv. solid material,which can be easily conv.rted to calcium carbide-^(13)C_(2).In current work,Ca^(13)C_(2)was used for in situ generation of^(13)C_(2)-acetylene in 1,3-dipolar cycloaddition and[4+2]cycloaddition *** the first time,1H-1,2,3-triazoles-4,5-^(13)C_(2)and isoxazoles-4,5-^(13)C_(2)were synthesized using calcium carbide-^(13)C_(2).A Diels-Alder type cycloaddition of 3,6-di(pyridin-2-yl)-1,2,4,5-tetrazine and Ca^(13)C_(2)was inv.stigated,and the best way for the synthesis of 3,6-di(pyridin-2-yl)pyridazine-4,5-^(13)C_(2)was proposed for the first *** we perform a detailled description of NMR spectra of^(13)C_(2)-labeled triazoles,isoxazoles and 3,6-di(pyridin-2-yl)pyridazine.

关键词： Isotopic labeling Cycloaddition Click chemistry Sustainable Chemistry Calcium carbide

Comparativ. analysis of magnetic fields, low temperatures and their combined action on growth of some conditionally pathogenic and normal humane microflora

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Open Journal of Ecology 2013年第7期3卷 469-472页

作者： Olena v. Derev.yanko Oleksandr I. Raichenko vladimir S. Mosienko vladimir O. Shlyakhov.nko Yuri v. Yanish Olena v. Karnaushenko Frantsev.ch Institute for Problems of Materials Science of NASU Kyiv Ukraine Frantsev.ch Institute for Problems of Materials Science of NASU Kyiv Ukraine Kav.tsky Institute of Experimental Patology Oncology and Radiobiology of NASU Kyiv Ukraine

Growth dynamic of bacterial population after influence of magnetic field and cryoaction has been *** v.troexperiments were performed onStaphylococcus aureus(202),Staphylococcus aureus (wild) Micrococcus lysodeicticusandPseudomonas ***: it has been demonstrated that bothStaphylococcus aureus(202) andStaphylococcus aureus (wild) Micrococcus lysodeicticusandPseudomonas aeruginosarespond to the impact of cryoaction by pronounced growth retardation followed by rapid increase in biomass increment of cryo-resistant clones selected during the experiment. Magnetic influence: it has been shown that neither alternating magnetic field (MF) (induction 30 mT) nor constant MF (induction 52 mT) applied separately from deep freezing hav. not induced any changes in further growth of bothStaphylococcus aureus(202) andStaphylococcus aureus(wild) cultures. Combined action:Deep freezing (up to -45℃) achiev.d within 70 sec compared with the action of constant MF significantly stimulated (P < 0.05) growth ofStaphylococcus aureus(202) andStaphylococcus aureus(202). Combined influence of cryoaction and alternating MF had no substantial effect on growth.

关键词： Biological Objects Magnetic Field Cryotreatment Bacteria

Combined action of low temperature and magnetic field of different intensities on growth of some bacterial species <i>in v.tro</i>

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Health 2012年第4期4卷 249-252页

作者： Oleksandr I. Raichenko vladimir S. Mosienko vladimir O. Shlyakhov.nko Olena v. Derev.yanko Yuriy v. Yanish Olena v. Karnaushenko Frantsev.ch Institute for Problems of Materials Science of NAS U Kyiv Ukraine Kav.tsky Institute of Experimental Pathology Oncology and Radiobiology of NAS U Kyiv Ukraine

Growth dynamic of bacterial population after influence of magnetic field and cryoaction has been studied. In v.tro experiments were performed on Bacillus cereus, Staphylococcus aureus, and Lactobacillus delbrueckii cultures. The most significant result was obtained in experiments with Bacillus cereus. When applied separately, cryoaction and alternating magnetic field were not able to kill this microorganism, whereas combined action of these factors led to the complete dev.talization of bacterial culture.

关键词： Magnetic Field Treatment Cryotreatment Bacillus Cereus

Mantle Transects in Africa According to Data of Mantle Xenocrysts and Diamond Inclusions

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Acta Geologica Sinica(English Edition) 2021年第S01期95卷 15-17页

作者： Igor v.ASHCHEPKOv.vladimir N.ZINCHENKO Alexandr S.Iv.NOv v.S.Sobolev.Institute of Geology and Mineralogy SB RAS Novosibirsk 630090Russia CATOCA Mining Society СatocaMoscow 127473Russia ALROSA Ltd. Mirny 678174Russia

We designed the mantle transects using the PTXFO2 diagrams(Ashchepkov.et al.,2010,2013,2017)constructed(Figs.1 a–c)for mantle columns beneath kimberlite and sections of the lithospheric mantle(SCLM)under the Kaapv.al... 详细信息

关键词： mantle lithosphere craton transect monomineral thermobarometry oxygen fugacity peridotite eclogite garnet clinopyroxene