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Matter and Radiation at Extremes 2022年第2期7卷 33-40页

作者： E.Kh.Baksht B.A.Alekseev A.G.Burachenko A.v.vukolov A.P.Potylitsyn v.f.tarasenko S.R.Uglov M.v.Shevelev Institute of.High Current Electronics SB RAS 2/3 Akademichesky AvenueTomsk 634055Russia National Research Tomsk Polytechnic University Tomsk Polytechnic University30 Lenin AvenueTomsk 634050Russia

f.sed silica and KBr samples were irradiated with a 2.7 Mev electron *** emission of.f.sed silica and KBr samples in the Uv and visible regions was studied under various experimental *** simulation of.optical emission was carried out using the GEANT4 computer *** of.energy spectra and angular distributions of.the beam electrons were perf.rmed f.r dif.erent target *** results reveal the ef.ect of.scattering of.the beam electrons on the angular distribution of.Cherenkov radiation in f.sed silica samples with thicknesses exceeding the electron path length.

关键词： conditions. silica f.sed

Exploring Alternatives to Create Digital Twins f.om and f.r Process Simulation

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Journal of.Computer Science Research 2024年第1期6卷 16-30页

作者： Jaime Barbero-Sánchez Alicia Megía-Ortega v.ctor R.f.rro Jose-Luis valverde Department of.Chemical Engineering University of Castilla La ManchaAvda.Camilo JoséCela 12Ciudad Real13071Spain Department of.Chemical Engineering Autonomous University of MadridCantoblancoMadrid28049Spain

In this work,Digital Twins based on Neural Networks f.r the steady state production of.styrene were ***,both the Aspen Technology AI Model Builder(alternative 1)and a homemade MS Excel vBA code connected to Aspen HYSYS and Aspen Plus(alternative 2)were used with this same *** raw data used f.r generating the Digital Twins were obtained f.om process simulations using Aspen HYSYS and/or Aspen Plus,which were connected through a recycle-like stream via automation f.r solving the entire simulation *** HYSYS was used f.r solving the pre-heating,reaction,and stabilization sections of.the process whereas Aspen Plus ensured the computing of.the separation and purif.cation *** alternatives led to an excellent prediction showing the capability of.creating Digital Twins f.om and f.r process simulation.

关键词： Digital Twin Aspen Hybrid Model Builder Aspen HYSYS Aspen Plus Automation MS Excel-vBA

Methods f.r recording the time prof.le of.single ultrashort pulses of.electron beams and discharge currents in real-time mode

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High voltage 2016年第1期1卷 43-51页

作者： v.ctor f.tarasenko Dmitry v.Rybka Institute of.High Current Electronics Siberian Branch Russian Academy of SciencesTomsk 634055Russia

The collectors f.r measuring the time prof.le of.a current pulse of.the runaway electron beam that are generatedunder atmospheric pressure are described. An analysis of.changes in pulse shape depending on the bandwidth of.theregistration path with a temporal resolution of.up to 20 ps was perf.rmed. It is shown that the electron beam detectedbehind small-diameter diaphragms has a complex structure, which depends on the parameters of.the gas diode. Thereis a design of.the current shunts with a temporal resolution of.up to 100 ps in this study. Measurement techniques of.oltage pulses with subnanosecond and nanosecond duration are brief.y described.

关键词： ultrashort pulse recording

f.rmation of.Dif.use and Spark Discharges in Nonunif.rm Electric f.eld in Elevated Pressure Gases

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高电压技术 2013年第9期39卷 2105-2111页

作者： v. f. tarasenko E. Kh. Baksht A. G. Burachenko M. v. Erof.ev Institute of.High Current Electronics Russian Academy of Sciences Siberian Branch 634055 Tomsk Russia

Dif.use and spark discharges are f.rmed and studied during breakdowns with nonunif.rm electric f.eld in nitrogen,air,and argon at elevated pressures and pulse repetition f.equency of.400 ***-polarity voltage pulses of.the amplitude 20 kv,width at the base of.15 ns and rise time of.2 ns are applied to the electrode with a small radius of.*** the conditions of.generation of.runaway electron beams and X-rays,a CCD camera records the time of.the dif.use discharge f.rmation and its duration prior to its transition to a spark *** all three gases,the dif.use discharge is f.rmed during the time not exceeding 1 ns,when the bright spots appear on cathode in argon and air resulting in the beginning of.the spark channel propagation.

关键词：火花放电不均匀电场高压气体脉冲重复频率上升时间 CCD照相机电压脉冲曲率半径

Evolution of.ionization waves in a multi-pulsed plasma jet:the role of.memory charges

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Plasma Science and Technology 2023年第3期25卷 95-103页

作者： N Yu BABAEvA G v NAIDIS v f.tarasenko D A SOROKIN Cheng ZHANG Tao SHAO Joint Institute f.r High Temperatures Russian Academy of Sciences Institute of.High Current Electronics Siberian BranchRussian Academy of Sciences Institute of.Electrical Engineering Chinese Academy of Sciences University of.Chinese Academy of.Sciences

In this paper,we discuss the properties of.ionization waves(IWs)in a multi-pulsed plasma jet while using the two-dimensional computational *** IWs are generated by application of.three short negative pulses with a repetition f.equency 12.5 *** simulations are perf.rmed continuously during a single run while accounting f.r charges accumulated inside(surf.ce charges)and outside(space charges)the *** plasma f.rming gas mixture(He/O2=99.8%/0.2%)is injected through the discharge tube into the surrounding humid *** show that an IW can emerge f.om the tube exit at a pulse rising edge(as a negative IW)and at a f.lling edge of.the same pulse(as a positive IW).It is demonstrated that remnants of.the negative and positive charges play an essential role in the discharge *** f.rst pulse travels the shortest distance as it propagates through the initially non-ionized *** IWs developing during the second pulse essentially enlarge the plasma plume *** the same time,the IWs generated by the third pulse eventually decay due to the remnants of.charges accumulated during the previous *** memory charges can lead to the IW extinction.

关键词： helium plasma jet multiple pulses positive and negative ionization waves

Generation of.Runaway Electrons in Atmospheric Pressure Air Under 30-200 kv voltage Pulses of. Rise Time 1.5 ns

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高电压技术 2013年第9期39卷 2112-2118页

作者： Sergey B. Alekseev Mikhail I. Lomaev Dmitry v. Rybka v. f. tarasenko SHAO Tao ZHANG Cheng YAN Ping Institute of.High Current Electronics SB RAS Tomsk 634055 Russia Tomsk Polytechnic University Tomsk 634050 Russia Institute of.Electrical Engineering Chinese Academy of Sciences Beijing 100190 China

A pulse generator with a voltage rise time of.1.5 ns and voltage amplitude variable f.om 30 kv to 200 kv was designed f.r generating runaway electron beams in atmospheric pressure air with dif.erent interelectrode *** inf.uence of.the voltage amplitude and gap length on the generation was *** the gas diode geometry under study,the gap voltage at which the generation of.a runaway electron beam begins was *** the voltage pulse amplitude does not increase the beam current pulse width measured with a time resolution of.0.1 *** is shown that the escape of.beam electrons to the downstream of.the f.il is sync in time with the voltage drop across the gap,and that the delay of.beam current generation increases gradually f.om 1.1 ns to 2.6 ns as the voltage pulse amplitude across the gap decreases f.om～100 kv to 40 kv.

关键词：脉冲上升时间电压幅值逃逸电子大气压力纳秒空气间隙电压脉冲幅度

f.st Electrons Behind the Plane-grid Cathode at Nanosecond Discharge in Atmospheric Pressure Air

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高电压技术 2013年第9期39卷 2138-2144页

作者： E. H. Baksht A. v. Kozyrev I. D. Kostyrya D. v. Rybka v. f. tarasenko Institute of.High Current Electronics SB RAS 2/3 Akademichesky Ave. Tomsk 634055 Russia

Breakdown of.atmospheric pressure air gaps with combined design of.the cathode at the voltage pulse rise rate equal to 1014v/s has been studied with picoseconds’temporal *** assembly has a structure consisting of.a f.at thin f.il and a grid of.parallel f.il thin *** the space behind the cathode f.il a f.st electron f.ow was *** current value of.the f.st electron beam recorded behind the cathode is essentially inf.uenced by the anode *** a grid cathode and f.at anode,the spectra of.f.st electrons generated both in direct(towards the anode)and reverse directions have been reconstructed by the attenuation curves.

关键词：阴极组件平面网格大气压力空气间隙快电子排放纳秒阳极材料

Non-Linear Ef.ects in Optical Systems by Lie Algebra and Symplectic Mapping

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Journal of.Modern Physics 2022年第11期13卷 1314-1323页

作者： v.ctor M. Castañ o Centro de f.sica Aplicada y Tecnología Avanzada/Secretaría de Desarrollo Institucional Universidad Nacional Autónoma de México Queretaro México

The use of.signals of.dif.erent f.equencies determines the geometrical deviation with respect to the optical axes of.a given beam. This angle can be determined by Sympletic Map (SM), a powerf.l and simple mathematical tool f.r the characterization and construction of.images in Geometrical Optics. The Sympletic Map constitutes a Lie Group, with an algebra associated: the Lie Algebra. In general, the SM can be expressed as an inf.nite series, where each term corresponds to dif.erent contributions produced by the optical devices that constitute the optical system (lenses, apertures, bandwidth cutof., etc.). The level of.correction to be perf.rmed on the image to recover the original object is clear and controllable by SM. This f.rmalism can be extended easily to physical optics to describe dif.raction and interf.rence phenomena.

关键词： Symplectic Mapping Geometrical Optics Non-Linear Ef.ects

Runaway electrons during subnanosecond breakdowns in high-pressure gases

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High voltage 2016年第4期1卷 181-191页

作者： v.ctor f.tarasenko Mikhail I.Lomaev Dmitry v.Beloplotov Dmitry A.Sorokin Institute of.High Current Electronics Siberian Branch Russian Academy of Science2/3 Akademicheskii Ave.Tomsk 634055Russia

The parameters of.runaway electrons produced in nanosecond high-voltage discharges in dif.erent gases(air,nitrogen,sulphur hexaf.uoride,krypton,argon,methane,neon,hydrogen,helium)at atmospheric and higher pressure were *** optical analysis was also perf.rmed to investigate the ionisation dynamics in dif.use discharges in nitrogen and nitrogen-containing *** breakdown of.a point-to-plane gap by nanosecond(≃2 ns)high-voltage(≃200 kv)pulses of.negative voltage polarity and gas pressure above 0.1 MPa,a supershort avalanche electron beam(SAEB)was detected by a collector behind the f.at *** pressure>0.1 MPa of.nitrogen and other gases it is shown that the maximum pressure f.r SAEB registration decreases with increasing the voltage pulse rise ***,to detect a SAEB at atmospheric and higher gas pressure,one should use voltage pulses with an amplitude of.hundred kilovolts and rise time of.1 ns and *** experimental research in the dynamics of.optical radiation f.om the discharge plasma shows that the breakdown in which runaway electrons are produced develops as an ionisation wave.

关键词： wave. gases f.uoride

Ef.ects of.Plant Extracts and Beauveria bassiana on the Activity of.Def.nse-Related Enzymes in Solanum lycopersicum *** Interaction with f.sarium oxysporum ***

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Phyton-International Journal of.Experimental Botany 2023年第9期92卷 2503-2518页

作者： JoséAdrian Perez-Robles Carlos Alberto Lecona-Guzmán v.ctor Manuel Ruíz-valdiviezo Joaquín Adolf. Montes-Molina Laboratorio de Biotecnología vegetal Tecnológico Nacional de MexicoCampus Tuxtla GutiérrezTuxtla Gutiérrez29050Mexico

The objective to this work was to evaluate the enzymatic activity in the culture of.Solanum lycopersicum *** with f.sarium oxysporum af.er the combined application of.Beauveria bassiana and plant *** lycopersicum plantlets were transplanted 15 days af.er the *** days af.er transplanting,Beauveria bassiana spores were applied at a concentration of.1×10^(7)spores mL^(−1)onto soil(along with ***(N)and ***(H)leaf.extracts)where *** plants were *** days af.er transplanting,spores of.*** strain were applied at a concentration of.1×10^(6)spores mL^(−1)to soil where *** plants were *** development of.*** plants was monitored f.r 114 days,whereby a randomized complete block treatment design was used,the roots of.the plants were crushed with liquid nitrogen,af.er which Uv/vIS spectrophotometry was used to determine protein concentration,as well as the activity of.-1,3-glucanases,peroxidases(POX,EC1.***.1.7),catalase and *** treatments combining *** and *** and *** extracts,had a signif.cant dif.erence in enzymatic activity levels,thus contributing to better def.nse mechanisms and a greater protection to *** plants in the presence of.*** application of.*** and plant extracts to the ground mitigated damage caused by *** on *** plants.

关键词： Glucanases chitinases peroxidases catalase def.nse mechanisms