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Science China Chemistry 2025年第01期 297-307页

作者： Bin Fang Limin Wang Haoqin Li Jiaxin Zhang Yang Ding Pan Pan Li Bo Peng Hua Bai Lin Li Frontiers Science Center for Flexible electronics Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials &Engineering Northwestern Polytechnical University institute of Flexible electronics (IFE Future Technologies) Xiamen University

Hepatic ischemia-reperfusion injury（HIRI） is characterized by mitochondrial dysfunction and oxidative stress. Monitoring mitochondrial hydrogen peroxide（mtH2O2） levels in real-time through super-resolution imaging is crucial for elucidating its distribution in live cells and its mechanism of action during HIRI. However, low-background fluorogenic probes have been overlooked in the context of super-resolution imaging. In this study, we developed a low-background fluorogenic probe（MitoWG） with the potential for super-resolution morphology-correlated mitochondrial identification to track the fluctuates of mtH2O2in HIRI. Activation of the desirable fluorescence properties of the probe by mtH2O2was confirmed using structural illumination microscopy（SIM）, enabling high-quality mitochondrial imaging with exceptional specificity and *** in mtH2O2levels were successfully observed in both cellular and rat models of HIRI. Furthermore, we associated the decline in mitochondrial redox homeostasis with accelerated mtH2O2production during HIRI, which triggered mitophagy deficiency and led to cell death. In conclusion, Mito-WG possesses excellent photophysical and low-background properties for SIM imaging, making it a promising tool for mtH2O2tracking in HIRI research and clinical diagnosis.

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Pulsed high-current discharge in water:adiabatic model of expanding plasma channel and acoustic wave

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Plasma Science and Technology 2022年第3期24卷 123-129页

作者： A KOZYREV A ZHERLITSYN N SEMENIUK institute of high-current electronics Russian Academy of SciencesTomsk 634055Russia

This paper presents the results of a theoretical and experimental study of the use of a pulsed discharge in water to obtain a strong acoustic wave in a liquid medium.A discharge with a current amplitude of 10 kA,a duration of 400 ns,and an amplitude pulsed power of 280 MW in water at atmospheric pressure created an expanding acoustic wave with an amplitude of more than 100 *** describe the formation of the discharge channel,an isothermal plasma model has been developed,which made it possible to calculate both the expansion dynamics of a high-current channel and the strong acoustic wave generated by *** calculations show that the number density of plasma in the channel reaches 10^(20) cm^(-3),while the degree of water vapor ionization is about 10%,and the channel wall extends with a velocity of 500 m s^(−1).The calculations for the acoustic wave are in good agreement with measurements.

关键词： plasma applications electrical discharge in water dense plasma channel

Subnanosecond high-voltage breakdown initiated in high-pressure nitrogen by a runaway electron beam

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high Voltage 2017年第2期2卷 56-59页

作者： Alexander G.Burachenko Victor F.Tarasenko Evgenii Kh.Baksht institute of high current electronics sb ras Tomsk 634055Russia National Research Tomsk State University Tomsk 634050Russia National Research Tomsk Polytechnic University Tomsk 634050Russia

This study reports on subnanosecond breakdowns initiated on high pressure nitrogen by a runaway electron beam in an inhomogeneous electric *** is shown that a diffuse discharge with a duration of≥1 ns is formed in the gas *** are reported for the first time on collector measurements of a supershort avalanche electron beam downstream of an anode foil at a nitrogen pressure of 0.5–1.2 *** beam pulsewidth at these pressures is∼90 *** a nitrogen pressure of 1.2 MPa,the number of electrons with an energy>70 keV recorded by the collector is 4×10^(6)/cm^(2).

关键词： field initiated beam

Fast 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 flat thin foil and a grid of parallel foil thin *** the space behind the cathode foil a fast electron flow was *** current value of the fast electron beam recorded behind the cathode is essentially influenced by the anode *** a grid cathode and flat anode,the spectra of fast 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

Finding Symmetry Groups of Some Quadratic Programming Problems

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Numerical Mathematics(Theory,Methods and Applications) 2023年第2期16卷 370-392页

作者： Anton V.Eremeev Alexander S.Yurkov Sobolev institute of Mathematics sb ras Omsk DepartmentOmskRussia Omsk Scientific Center sb ras(institute of Radiophysics and Physical electronics) OmskRussia

Solution and analysis of mathematical programming problems may be simplified when these problems are symmetric under appropriate linear *** particular,a knowledge of the symmetries may help decrease the problem dimension,reduce the size of the search space by means of linear *** the previous studies of symmetries in the mathematical programming usually dealt with permutations of coordinates of the solutions space,the present paper considers a larger group of invertible linear *** study a special case of the quadratic programming problem,where the objective function and constraints are given by quadratic *** formulate conditions,which allow us to transform the original problem to a new system of coordinates,such that the symmetries may be sought only among orthogonal *** particular,these conditions are satisfied if the sum of all matrices of quadratic forms,involved in the constraints,is a positive definite *** describe the structure and some useful properties of the group of symmetries of the *** that,the methods of detection of such symmetries are outlined for different special cases as well as for the general case.

关键词： Non-convex programming orthogonal transformation symmetry group Lie group

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用于激光器的电感储能发生器(英文)

光学精密工程 2011年第2期19卷 213-220页

作者： TArasENKO V F PANCHENK O A N TEL’MINOV A E GENIN D E institute of high current electronics sb ras Akademichesky ave.2/3634055TomskRussia

研制了适用于激光器的电感储能发生器（GIES）,并研究了它在高压混合气体中的放电和激光参数。研究表明,电感储能发生器可产生高压预脉冲并引起放电电流的突然增大,可在不同的混合气体中形成长时间的稳定放电,从而方便地控制和优化每一... 详细信息

研制了适用于激光器的电感储能发生器（GIES）,并研究了它在高压混合气体中的放电和激光参数。研究表明,电感储能发生器可产生高压预脉冲并引起放电电流的突然增大,可在不同的混合气体中形成长时间的稳定放电,从而方便地控制和优化每一种气体混合物的预脉冲参数。在未知IES击穿电压和首次放电幅度下的参数时,电流尖峰会按因子1.52减少,从而产生纯激光参数。得到了氮气激光器的最大的辐射功率,输出能量和脉冲持续时间,在脉冲持续时间为40 ns时,紫外输出高达50 mJ,红外输出高于25 mJ,实现了氮分子激光跃迁的级联激射。因此C^3Пu-B^3Пg带总的脉冲持续时间延长至100 ns。在XeCl,XeF和KrF受激准分子激光器中,脉冲宽度和输出能量都得到了改善。XeF激光器的最大效率达到了1.6%,同时峰值输出能量达到了0.85 J,最大脉冲持续时间超过了200 ns。在248 nm波长处,效率3.3%的KrF激光器产生的160 ns脉冲能量高达650 mJ,最终得到了效率为7.7%10%的非链式HF（DF）激光器。演示了基于CO2分子高峰值功率的有效运行,结果表明,激光器在10 600 nm处的输出能量为6.2 J,转换效率高达25%。

关键词：电感储能发生器高压气体体放电激光参数

Impact of lanthanum on the modification of HfO_2 films structure

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Journal of Rare Earths 2015年第8期33卷 857-862页

作者： T.P.Smirnova L.V.Yakovkina V.O.Borisov Nikolaev institute of Inorganic Chemistry sb ras

LaxHf1-xOy thin films with various concentrations of La, homogeneous and nonhomogeneous distributions of elements throughout the films thickness was purposefully grown by CVD. The composition of the films and their chemical structures were characterized throughout the films thickness by X-ray photoelectron spectroscopy （XPS） and energy-dispersive X-ray spectrometry （EDXA）. A full picture of the film crystallinity was provided by the combination of grazing incidence X-ray diffraction （GIXRD） synchrotron radiation （SR） and high resolution transmission electron microscopy （HR TEM）. It was shown that La acted as ＂molar volume modulator＂ and stabilized the nonequilibrium at T≤1300 ℃ cubic phases. The samples with La content in range of 7 at.%〈CLa〈22 at.% were materials with fluorite-type （Fm-3m） structure. The pyroehlore phase formation was observed at -18 at.% La content. The correlation between the La-doped content and the films microstructure was revealed.

关键词： Hf1-xLaxOy films solid solutions X-ray diffraction microstructure rare earths

Ignition of Hydrocarbon-Air Supersonic Flow by Volumetric Ionization

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Journal of Thermal Science 2015年第6期24卷 583-590页

作者： Marat A.Goldfeld George A.Pozdnyakov Khristianovich institute of Theoretical and Applied Mechanics sb ras

The paper describes the results of the electron-beam initiation of the combustion in the mixtures of hydrogen,natural gas or kerosene vapors with *** beam characteristics were studied in closed volume with immobile *** researches included definition of an integrated current of an electronic beam,distribution of a current density and an estimation of average energy of *** of fuel mixtures ignition by means of this approach in the combustor at high velocity at the entrance was *** were carried out at Mach numbers of 4 and *** of ignition and combustion under electron beam action was *** was revealed that ignition of mixture occurs after completion of electron gun *** obtained have confirmed effectiveness of electron beam application for ignition of hydrogen and natural *** numerical simulation of the combustion of mixture in channel was carried out by means of ANSYS CFD 12.0 instrumentation on the basis of Reynolds averaged Navier-Stokes equation using SST/k-ωturbulence *** combustion modeling,a detailed kinetic scheme with 38 reactions of 8 species was implemented taking into account finite rate *** have shown that the developed model allow to predict ignition of a mixture and flame propagation even at low flow temperatures.

关键词： supersonic flow combustor electron bean ignition delay numerical simulation.

Tempering Behavior of M50 Steel with Different Austenite Proportion Induced by high current Pulsed Electron Beam

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稀有金属材料与工程 2012年第S1期41卷 475-477页

作者： G.E.Ozure institute of high current electronics 4Academichesky Av.Tomsk 634055Russia

M50 steel was irradiated by high current pulsed electron beam(HCPEB)with different *** subsequent tempering was carried out between 500 and 625℃.Microstructure evolution was analyzed by scanning electron microscopy and X-ray *** is found that the HCPEB treatment could constrain martainsite transformation in the surface layer of the *** behavior of HCPEB remelted layer strongly depends on the proportion of retained *** saturated more carbon and metallic elements depict higher tempering *** tempered process,carbides precipitates among the grain and phase *** decreased solution of the elements promotes the retained austenite into martensite.

关键词： electron beam irradiation M50 steel tempering microstructure

Methods for recording the time profile 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： Victor F.Tarasenko Dmitry V.Rybka institute of high current electronics Siberian Branch Russian Academy of SciencesTomsk 634055Russia

The collectors for measuring the time profile 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 performed. 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 ofvoltage pulses with subnanosecond and nanosecond duration are briefly described.

关键词： ultrashort pulse recording