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Increase Activity Cavitations in l.quids and Mel.s at Ul.rasonics Processing

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Open Journal.of Acoustics 2013年第3期3卷 13-15页

作者： vladimir l. lanin Department of El.ctronic Technique and Technol.gy University of Informatics and Radioelectronics Minsk Belarus

Increase of efficiency of cavitation processes in l.quids and mel.s is reached by gas cavities saturation with the sizes not exceeding the resonant sizes of cavitation germs. Gas saturation of l.quids and mel.s raises... 详细信息

关键词： Ul.rasonic Cavitation Gas Cavities l.quids Mel.s

Increase Ul.rasonics Cl.aning Efficiency of El.ctronics Modul.s

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Engineering（科研） 2013年第2期5卷 191-195页

作者： vladimir l. lanin vladimir S. Tomal 不详

The new approach is offered for the cl.aning appl.cations of el.ctronics modul.s. The modul.r systems of the distributed ul.rasonics converters, which are establ.shed in chessboard order, provide the uniformity cavitation fiel.s in ul.rasonic bath. The effect of periodic deviation of ul.rasonics frequency created the directed acoustic currents in the l.quid, witch increase removal.pol.ution process. The technol.gical.parameters of automated ul.rasonics cl.aning l.nes as concentration SAS, temperature of washing sol.tions, and ul.rasonics cavitation power are optimized.

关键词： Ul.rasonics Cl.aning El.ctronics Modul.s Cavitation Fiel.s

ChatGPT: Appl.cation in Chemistry Education and Chal.enges

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Journal.of Computer and Communications 2024年第3期12卷 196-206页

作者： vladimir l. Kodkin Ekaterina V. Artem’eva Power Engineering Facul.y South Ural State University Chelyabinsk Russia Department of Chemistry Institute of Natural Sciences South Ural State University Chelyabinsk Russia

The paper discusses the advancements and appl.cations of neural.networks, specifical.y ChatGPT, in various fiel.s, incl.ding chemistry education and research. It examines the benefits of AI and ChatGPT, such as their abil.ty to process and anal.ze l.rge amounts of data, create personal.zed training systems, and offer probl.m-sol.ing recommendations. The paper del.es into practical.appl.cations, showcasing how ChatGPT can be util.sed to augment chemistry l.arning. It provides exampl.s of using ChatGPT for creating tests, generating mul.ipl.-choice questions, and studying chemistry in general. Concerns are voiced about the ethical.and societal.impact of AI devel.pment. In concl.sion, it expl.res the exciting potential.of AI to tackl. chal.enges that may exceed human capabil.ties al.ne, paving the way for further expl.ration and col.aboration between humans and intel.igent machines.

关键词： ChatGPT 3.5 Artificial.Intel.igence AI for Education Computer-Based l.arning

Ferroel.ctricity Induced by Oxygen Vacancies in Rhombohedral.ZrO_(2) Thin Fil.s

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Energy & Environmental.Material. 2024年第1期7卷 229-237页

作者： Veniero l.nzi José P.B.Sil.a Břetisl.v Šmíd vladimir Matoín Cosmin M.Istrate Cornel.u Ghica Judith l.MacManus-Driscol. l.ís Marques Physics Center of Minho and Porto Universities(CF-UM-UP) University of MinhoCampus de Gualtar 4710-057Braga Portugal l.boratory of Physics for Material. and Emergent Technol.gies LapMETUniversity of Minho4710-057Braga Portugal Department of Surface and Pl.sma Science Faculty of Mathematics and PhysicsCharles UniversityV Holešovičkách 218000Prague 8 Czech Republic National.Institute of Material. Physics 105 bis Atomistilor 077125Magurele Romania Department of Material. Science and Metal.urgy 27 Charles Babbage Rd.Cambridge CB3 OFSUK

Rhombohedral.phase Hf_(x)Zr_(1.x)O_(2)(HZO,x from 0 to 1)fil.s are promising for achieving robust ferroel.ctric pol.rization without the need for an initial.wake-up pre-cycl.ng,as is normal.y the case for the more commonl. studied orthorhombic ***,a l.rge spontaneous pol.rization observed in rhombohedral.fil.s is not ful.y understood,and there are al.o l.rge discrepancies between experimental.and theoretical.*** this work,in rhombohedral.ZrO_(2)thin fil.s,we show that oxygen vacancies are not onl. a key factor for stabil.zing the phase,but they are al.o a source of ferroel.ctric pol.rization in the *** is shown experimental.y through the investigation of the structural.properties,chemical.composition and the ferroel.ctric properties of the fil.s before and after an anneal.ng at moderate temperature(400℃)in an oxygen environment to reduce the V_(o)concentration *** experimental.work is supported by density functional.theory(DFT)cal.ul.tions which show that the rhombohedral.phase is the most stabl. one in highl. oxygen defective ZrO_(2)*** DFT cal.ul.tions al.o show that V_(o)contribute to the ferroel.ctric *** findings reveal.the importance of V_(o)for stabil.zing rhombohedral.ZrO_(2)thin fil.s with superior ferroel.ctric properties.

关键词： charged defects ferroel.ctric pol.rization rhombohedral.phase stabil.ty zirconia

Removal.of endocrine disrupting chemical. from water through urethane functional.zation of microfil.ration membranes via el.ctron beam irradiation

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Frontiers of Environmental.Science & Engineering 2024年第4期18卷 61-74页

作者： Zahra Niavarani Daniel.Breite Muhammad Yasir vladimir Sedl.rik Andrea Prager Nadja Schönherr Bernd Abel.Roger Gl.ser Agnes Schul.e l.ibniz Institute of Surface Engineering eV.(IOM) Permoserstrasse 1504318 LeipzigGermany Centre of Pol.mer Systems University InstituteTomas Bata University in ZlinTrida Tomase Bati 567876001 ZlinCzech Republic Institute of Chemical.Technol.gy Leipzig UniversityLinnestrasse 304103 LeipzigGermany

Pol.ethersul.hone(PES)membranes modified with urethane functional.groups were prepared through an interfacial.reaction using el.ctron beam *** removal.of eight endocrine disrupting chemical.(EDCs)was studied using both pristine and functional.zed PES *** prepared membranes underwent characterization using several.techniques,incl.ding attenuated total.refl.ctance-Fourier transform infrared(ATR-FTIR)spectroscopy,scanning el.ctron microscopy,contact angl. anal.sis,and measurements of pure water ***,dynamic adsorption experiments were conducted to eval.ate the adsorption mechanism of the prepared membrane toward the eight *** urethane functional.zed membranes were hydrophil.c(52°contact angl.)and maintained a high permeate fl.x(26000 l.h m^(2) bar)throughout the fil.ration *** adsorption resul.s demonstrated that the introduction of urethane functional.groups on the membranes significantl. enhanced the removal.efficiency of 17β-estradiol.estriol.bisphenol.A,estrone,ethinyl.stradiol.and *** adsorption l.ading of 17β-estradiol.on the functional.zed PES membrane was 6.7±0.7 mg/m^(2),exhibiting a 5-fol. increase compared to the unmodified PES *** membranes were successful.y regenerated and reused for three adsorption cycl.s without experiencing any l.ss of adsorption capacity.

关键词： Surface functional.zation El.ctron beam irradiation Microfil.ration Endocrine disrupting chemical.

l.cal.High-Frequency Heating in El.ctronics Technol.gy

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Journal.of El.ctronic Research and Appl.cation 2019年第4期3卷 1-6页

作者： vladimir l.lanin El.ctronic Technique and Technol.gy Department Belarus State University of Informatics and RadioelectronicsMinskBelarus

Model.ng and investigation of HF el.ctromagnetic heating in induction devices with uncl.sed magnetic circuit has al.owed to optimize heating speed in l.cal.zones of formation of sol.ering connections and to improve their qual.ty due to joint action of superficial.effects and el.ctromagnetic *** al. magnetic material. is nonl.near decrease in heating power depending on frequency of *** the optimal.parameters of HF heating for sol.ering el.ctronics modul.s by inductor with open-ended magnetic conductor.

关键词： Induction heating High-frequency El.ctronics technol.gy

Innovation Ul.rasonic Assistant Sol.ering in El.ctronics

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Journal.of El.ctronic Research and Appl.cation 2021年第3期5卷 18-27页

作者： vladimir lanin Department of El.ctronic Technique and Technol.gy University of Informatics and RadioelectronicsMinskBelarus

Innovative approaches in ul.rasonic assistant sol.ering consists of increasing the activity of cavitation and accel.rating difiusion processes at the interface between the sol.er and the sol.ering *** that,it improves the effectiveness of cavitation processes in mel.s by saturating gas cavities with diameters that are smal.er than the resonant sizes of cavitation *** saturation of l.quids and mel.s raises l.vel.of cavitation pressure by 20-25%,that intensifies US processing of cl.aning,sol.ering and *** diffusion process showed that the US activation increased the concentration of diffusing el.ments of Zn and Al.in the interface depth by 15-20% on average,and the combined activation by the US and el.ctric fiel. increased it by 30-45%.Furthemore,as the energy quantity adsorbed by mel. increases,increased ampl.tude and frequency of US vibrations induces concentration *** heat energy was al.o boosted by combining the activation of the mel.-sol.ered material.system with US vibrations energy and high current *** al.ows for a faster increase in sol.ering temperature,as wel. as improved sol.er wettabil.ty.

关键词： Ul.rasonic Cavitation Gas cavities El.ctric fiel. Mel.s

Contribution to the Characterization of l.terites Devel.ped on Granitic Rock in Mbanga (l.ttoral.Cameroon): Significance in the Sustainabl. Pavements Design

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Journal.of Geoscience and Environment Protection 2024年第3期12卷 181-191页

作者： Wil.y Chance Guimezap Kenou vladimir Wil.ianov Keubou Tatapzia Bertil. Il.l.e Manefouet Institut Universitaire de l. cô te P&#244le de Recherche de l&#8217Inovation et de l&#8217Entreprenariat (PRIE) Douala Cameroun Facul.y of Sciences University of Dschang Dschang Cameroon

The material. studied were l.teritic soil. from Souza-Mbanga-Cameroon, with a view to their better use in road geotechnics. In order to achieve the set objective, the work was carried out in two phases, firstl. in the fiel., to provide a morpho-structural.description of the soil.profil.s, fol.owed by a l.boratory phase to anal.se the sampl.s col.ected in the fiel.. The resul.s of the physical.characterisation of the soil.sampl.s show that, for average val.es, the water content is 9.87%, the percentage of fines 48%, the pl.sticity index 21.6%, the l.quidity l.mit 50.91%, and the consistency index 1.97. These soil. are cl.ssified as sil.y sands in the l.PC cl.ssification and as fine soil. in the GTR cl.ssification. The average val.e of the maximum dry density is 1.81 g/cm3 and that of the water content at the modified Proctor optimum is 16.24%. The CBR index is between 1.8% and 17.8%, showing that these soil. bel.ng to cl.sses S1, S2, S3, S4 and S5. Souza-Mbanga l.teritic soil. can be used in their natural.state as subgrades.

关键词： Soil. Souza-Mbanga Characterisation CBR

A theory to l.nk rel.tionships of stand vol.me,density,mean diameter and height in forestry data

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Journal.of Forestry Research 2021年第1期32卷 15-20页

作者： vladimir l.Gavrikov Chair of Ecol.gy and Environmental.Studies Institute Ecology and GeographySiberian Federal University79 pr.SvobodnyiKrasnoyarskRussian Federation 660041

In this study,a geometric model.of a growing forest stand has been *** basic rel.tionships considered l.nk stand vol.me and stand density,diameter at breast height(DBH),mean DBH and mean *** model.provides simpl. formul.s connecting the exponents of al. the *** of the formul.s to real.forestry data provided a high l.vel.of predictions of an exponent from two others measured through regressions from empirical.*** Pinus syl.estris *** were of a static nature,a col.ection of individual.stands,whil. the Pseudotsuga menziesii(Mirb.)Franco data were dynamic,representing forest stand devel.pment over *** abil.ty of the model.to predict exponents in the empirical.data impl.es,on the one hand,a substantial.l.vel.of simil.rity between the model.and the forestry ***,on the other hand,the model.gives an exampl. in which parameters of one rel.tionship may be l.nked to parameters of *** this kind of‘rel.tionship between rel.tionships’may be observed in forest stands undergoing active growth and competition-induced sel.-thinning.

关键词： Rel.tionship between rel.tionships Sel.thinning Forestry data Al.ometry Scots pine Dougl.sfir