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Комбинированный твердотельный замыкающий ключ для коммутации сильноточного импульса 强脉冲交换组合刚性闭合密钥
Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.09.56225.136-23
А. П. Орлов, П.И. Голяков, Ю В Власов, П.Б. Репин
The results of studies of a solid-state closing switch for a high-current pulse switching are presented. The experiments were carried out on a laboratory facility with a capacitive energy storage run down a discharge circuit with electrical-explosive opening switch (EEOS) by a current pulse with an amplitude ~450 kA. The discharge circuit consists of two sections separated by a branch with a solid-state closing switch. A metal foil of the EEOS can be located in an interelectrode gap of the closing switch. The operation of the EEOS leads to a breakdown of the insulation of the closing switch, as a result of which an effective shunting of the section of the discharge circuit containing the EEOS occurs. The developed combined solid-state closing switch in the future is capable of providing multi-channel switching of a high-current pulse to the load synchronously with the EEOS operation.
介绍了一种用于大电流脉冲开关的固态闭合开关的研究结果。实验在一个电容储能实验装置上进行,实验用振幅~450 kA的电流脉冲从带电爆开关(EEOS)的放电电路上运行。放电电路由带有固态闭合开关的支路隔开的两个部分组成。EEOS的金属箔可以位于闭合开关的电极间隙中。EEOS的操作导致闭合开关的绝缘击穿,其结果是包含EEOS的放电电路部分发生有效的分流。未来开发的组合式固态闭合开关能够在EEOS操作的同时向负载提供多通道的大电流脉冲开关。
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引用次数: 0
Синхронизация фаз между временными сигналами, выделенными из биологических данных 从生物数据中分离出来的时间信号之间的相同步
Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.06.55611.40-23
O. E. Дик, A.Л. Глазов
The task is to determine the indices of phase synchronization between biological data extracted from neuronal activity and fluctuations in blood pressure and respiration, based on the calculation of instantaneous frequencies and phases using the synchrosqueezed wavelet analysis.. Differences in synchronization indices between the analyzed data in two groups of rats (the control group and the group with experimentally induced colitis) were revealed. Pain exposure was found to be associated with frequency adjustment of the variability of the neuronal activity or the blood pressure, followed by the onset of phase synchronization.
任务是在同步压缩小波分析计算瞬时频率和相位的基础上,确定从神经元活动中提取的生物数据与血压和呼吸波动之间的相位同步指标。观察两组大鼠(对照组和实验性结肠炎组)分析数据同步指标的差异。研究发现,疼痛暴露与神经元活动变异性或血压的频率调整有关,随后出现相同步。
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引用次数: 0
Аномальный отклик стратифицированной среды на объемное тепловыделение 平流层对容积热的异常反应
Pub Date : 2023-01-01 DOI: 10.21883/JTF.2018.01.45474.2350
Л. Х. Ингель
A linear stationary problem of the response of a semi-bounded stably stratified fluid/gaseous medium to volumetric spatially inhomogeneous heat release in the Boussinesq approximation is theoretically investigated. The most important similarity parameters are the analogue of the Rayleigh number and the aspect ratio of the source of buoyancy. For a perturbation in the form of a single horizontal harmonic, an analytical solution has been found that makes it possible to analyze a number of significant regularities. The nontrivial possibility of an intense hydrothermodynamic response to a weak heat release at a certain ratio of the mentioned parameters is found.
从理论上研究了半有界稳定分层流体/气体介质在Boussinesq近似下对体积空间非均匀放热响应的线性平稳问题。最重要的相似参数是瑞利数的相似度和浮力源的长径比。对于单个水平谐波形式的扰动,已经找到了一个解析解,使分析许多重要的规律成为可能。发现在上述参数的一定比率下,对弱热释放产生强烈的水热力学响应的非平凡可能性。
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引用次数: 0
Система микроманипулирования сенсиллами насекомых на основе сплава Ti-=SUB=-50-=/SUB=-Ni-=SUB=-25-=/SUB=-Cu-=SUB=-25-=/SUB=- с эффектом памяти формы 桑西尔昆虫微操作系统基于t -50-= -50-= - n - i-= -25-= =SUB -25
Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.08.55987.37-23
С.В. фон Гратовски, М. И. Жуковская, А. М. Луничкин, А. В. Шеляков, Н. Н. Ситников, В. В. Коледов, К. А. Бородако, С.Ф. Петренко
Insect pest control requires fundamental knowledge of their physiology and behavioral responses. However, due to the small size of insects, in general, and their sensory formations (sensilla), in particular, the study of the physiology of insect sensory systems has until recently been limited by insufficient accuracy and selectivity of experimental mechanical action. To eliminate this gap in the study of insects, a physical technology is proposed based on a micromechanical device - microtweezers based on a layered structural composite of Ti50Ni25Cu25 alloy with a shape memory effect (SME), combined with a temperature control system and a three-coordinate piezoelectric micropositioner. Microtweezers with SME selectively capture the smallest sensilla of the studied insects, enabling their precise mechanical stimulation with simultaneous recording of physiological responses generated by sensilla using methods of impulse derivation in the nerve centers of the insect.
害虫防治需要对它们的生理和行为反应有基本的了解。然而,由于昆虫的体积很小,特别是它们的感觉器官(感受器),直到最近,昆虫感觉系统的生理学研究一直受到实验机械作用的准确性和选择性不足的限制。为了消除昆虫研究中的这一空白,提出了一种基于具有形状记忆效应(SME)的Ti50Ni25Cu25合金层状结构复合材料微机械装置的物理技术——微镊子,并结合温度控制系统和三坐标压电微定位器。带有SME的微镊子选择性地捕获所研究昆虫的最小感受器,利用昆虫神经中枢的脉冲衍生方法,使其精确的机械刺激能够同时记录由感受器产生的生理反应。
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引用次数: 0
Ограничение мощности лазерного излучения углеродными материалами с нелинейным оптическим пороговым эффектом при форме импульса с плоской вершиной 用非线性光学阈值脉冲水平限制激光辐射功率
Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.04.55039.281-22
М. С. Савельев, Павел Николаевич Василевский, Ю. П. Шаман, А.Ю. Толбин, А. Ю. Герасименко, С.В. Селищев
The possibilities of using multivariate determination of carbon nanotubes properties based on the dependence data of the normalized transmission logarithm on the sample displacement in the case of Z-scan with an open aperture as well as on the total pulse energy in the case of fixed sample position measurements are studied. The radiation transfer equation for the threshold dependence of the absorption coefficient on the intensity of a flat-top laser beam is used. The data of physical and computational experiments showed the sensitivity of the measured curves with respect to the values of the constants of the optical and threshold energy fluence, as well as the beam waist radius. The possibility of multivariate determination of the properties of liquid carbon nanotube-based dispersed media with a nonlinear optical threshold effect and beam waist radius inside such samples has been established.
研究了在开孔z扫描条件下,基于归一化透射对数对样品位移的依赖数据,以及在固定样品位置测量条件下,基于脉冲总能量的依赖数据,对碳纳米管性能进行多元测定的可能性。利用平顶激光束光强对吸收系数阈值依赖性的辐射传递方程。物理实验和计算实验数据表明,测量曲线对光学常数和阈值能量影响以及光束腰半径的敏感性。建立了利用非线性光学阈值效应和样品内束腰半径对液态碳纳米管分散介质性质进行多元测定的可能性。
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引用次数: 0
Моделирование динамики предельно коротких оптических импульсов в углеродных нанотрубках со случайными примесями при учете многофотонного поглощения 考虑多光子吸收时,在碳纳米管中最小光学脉冲的模拟
Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.03.54850.245-22
С.В. Белибихин, Н. Н. Конобеева, М. Б. Белоненко
In this work, we study the evolution of an extremely short pulse in a dielectric crystal with carbon nanotubes containing an impurity with random parameters (energy level, electron hybridization energy). The dependence of the spatial characteristics of the pulse on the impurity parameters and the number of photons taken into account in the model is analyzed.
在这项工作中,我们研究了含有随机参数(能级,电子杂化能)的碳纳米管的介电晶体中极短脉冲的演化。分析了脉冲的空间特性与杂质参数和模型中考虑的光子数的关系。
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引用次数: 0
Электросопротивление, термоэдс и коэффициент Холла чистого таллия при 100-550 K 电阻、热电偶和纯铊霍尔系数为100-550 K
Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.08.55974.98-23
А. Т. Бурков, П. П. Константинов
Electrical resistivity, Seebeck coefficient and Hall coefficient of pure thallium were measured at temperatures from 100 K to 550 K, i.e. almost to the melting temperature of this metal. The history of the experiemental investigations of the transport properties of Tl is shortly reviewed. This is a first publication of the experimental data on the Seebeck coefficient and the Hall coefficient of Tl in such a broad temperature range.
在100 ~ 550 K的温度范围内,即接近金属的熔化温度,测量了纯铊的电阻率、塞贝克系数和霍尔系数。简要回顾了Tl输运性质实验研究的历史。这是首次在如此宽的温度范围内发表Tl的塞贝克系数和霍尔系数的实验数据。
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引用次数: 0
Изучение угловых зависимостей скоростей ионно-пучкового распыления металлов для синтеза заготовок фотошаблонов 研究离子-电子束速率的角度依赖性,用于合成光板模板
Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.07.55768.115-23
М. С. Михайленко, А. Е. Пестов, А. К. Чернышев, Николай Иванович Чхало
An alternative material has been proposed as an absorber for a mask blank for lithography in the vicinity of a wavelength of 11.2 nm - Ni. It has been established in this work that the optimal angle for efficient sputtering of Ru, Be, and Ni targets by accelerated argon ion sources for fabrication of a Ru/Be multilayer structure with an upper Ni layer is an angle of 60 degrees. At this angle, the etching rate for all three materials is 35 ± 5 nm/min at an argon ion energy of 800 eV and an ion current density of 0.5 mA/cm2.
提出了一种替代材料作为光刻用掩模空白在11.2 nm - Ni波长附近的吸收剂。本工作确定了加速氩离子源溅射Ru、Be和Ni靶材的最佳角度为60度,用于制备上镍层的Ru/Be多层结构。在此角度下,当氩离子能量为800 eV,离子电流密度为0.5 mA/cm2时,三种材料的刻蚀速率均为35±5 nm/min。
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引用次数: 0
Влияние ионов Li на мемристорные свойства конденсаторных структур на основе нанокомпозита (Co-=SUB=-40-=/SUB=-Fe-=SUB=-40-=/SUB=-B-=SUB=-20-=/SUB=-)-=SUB=-x-=/SUB=-(LiNbO-=SUB=-3-=/SUB=-)-=SUB=-100-x-=/SUB=-
Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.09.56221.145-23
Александр Викторович Ситников, Ю. Е. Калинин, И. В. Бабкина, А.Е. Никонов, М. Н. Копытин, Л. И. Янченко, А. Р. Шакуров
The paper reveals the influence of Li, B and the composition of metal contacts on the processes of resistive switching in memristive structures M/NC/D/M. After field exposure in structures Cu/(Co50Fe50)Х(LiNbO3)100-Х/s-LiNbO3/Cu/sitall, Cu/(Co50Fe50)Х(LiNbO3)100-Х/d-LiNbO3/Cu/sitall and Cu/(Co40Fe40B20)Х(SiO2)100-Х/d-LiNbO3/Cu/sitall at x < 13 at.% was detected a residual voltage (up to 16 mV) due to the electromigration of Li ions, that leading to a "reversible" type of VAC hysteresis and instability of the time dependencies of induced resistive states. In the structures of Cu/(Co40Fe40B20)Х(LiNbO3)100-Х/s-LiNbO3/Cu/sitall, Cr/Cu/Cr/(Co40Fe40B20)Х(LiNbO3)100-Х/s-LiNbO3/Cr/Cu/Cr/sitall containing B, the residual voltage is reduced by formation of chemical compounds B with percolated Li atoms. When limiting the electromigration of Li ions, the main mechanism of resistive switching is the processes of electromigration of oxygen vacancies in the dielectric oxide layer. Suppression of residual voltage in the Cr/Cu/Cr/(Co50Fe50)Х(LiNbO3)100-Х/s-LiNbO3/Cr/Cu/Cr/sitall structure due to the introduction of a Cr buffer layer that does not dissolve Li leads to the absence of bipolar resistive switching in these structures.
本文揭示了Li、B和金属触点组成对M/NC/D/M记忆结构中电阻开关过程的影响。在x < 13 at时,Cu/(Co50Fe50)Х(LiNbO3)100-Х/s-LiNbO3/Cu/sitall、Cu/(Co50Fe50)Х(LiNbO3)100-Х/d-LiNbO3/Cu/sitall和Cu/(Co40Fe40B20)Х(SiO2)100-Х/d-LiNbO3/Cu/sitall结构野外暴露后。由于锂离子的电迁移,检测到残留电压(高达16 mV),导致“可逆”型的VAC滞后和诱导电阻状态的时间依赖性不稳定。在含有B的Cu/(Co40Fe40B20)Х(LiNbO3)100-Х/s-LiNbO3/Cu/sitall、Cr/Cu/Cr/(Co40Fe40B20)Х(LiNbO3)100-Х/s-LiNbO3/Cr/Cu/Cr/sitall结构中,残余电压通过与Li原子的渗透形成化合物B而降低。在限制锂离子的电迁移时,电阻开关的主要机制是电介质氧化层中氧空位的电迁移过程。在Cr/Cu/Cr/(Co50Fe50)Х(LiNbO3)100-Х/s-LiNbO3/Cr/Cu/Cr/sitall结构中,由于引入了不溶解Li的Cr缓冲层,抑制了残余电压,导致这些结构中没有双极电阻开关。
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引用次数: 0
Статистическая оценка характеристик поврежденных солнечных батарей космических аппаратов 宇宙飞船受损太阳能电池的统计评估
Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.02.54502.121-22
А А Абдурахимов, А.В. Левандович
The change in the characteristics of a solar battery as a result of a random abrupt change in the properties of individual solar cells, which occurred as a result of a single or systematic impact of adverse factors in near-Earth outer space, is considered. The choice of the calculation scheme for constructing a model of a single solar cell is substantiated. For this situation, analytical mathematical models of typical connections of solar cells have been developed. Using the developed models, the current-voltage and volt-watt characteristics of the solar battery are analyzed in the case of an abrupt decrease in the photocurrent of solar cells with different probabilities. A statistical analysis of the characteristics of damaged solar cells was carried out using simplified logical-analytical models with the introduced circuit loss coefficient. Estimates of the values of the coefficient of circuit losses for typical schemes for connecting solar cells are given.
考虑到由于近地外空间不利因素的单一或系统影响而造成的单个太阳能电池特性的随机突变所造成的太阳能电池特性的变化。给出了构建单个太阳能电池模型时计算方案的选择。针对这种情况,建立了典型太阳能电池连接的解析数学模型。利用所建立的模型,分析了太阳能电池光电流以不同概率突然下降时的电流-电压和伏瓦特性。采用简化的逻辑分析模型,引入电路损耗系数,对损坏太阳能电池的特性进行了统计分析。给出了典型太阳能电池连接方案的电路损耗系数的估计值。
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引用次数: 0
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Журнал технической физики
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