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Gas-flow-induced population inversion in argon discharge
Pleiades Publishing Ltd - Tập 34 - Trang 48-51 - 2011
G. A. Galechyan
The inverse population of excited atomic states in the electric discharge in argon at elevated pressures is created in a longitudinal turbulent gas flow as a result of the transformation of the positive column from the state of a uniform noncontracted discharge to the contracted state, which is followed by superluminescent flash generation. It is suggested to use this phenomenon for the creation o...... hiện toàn bộ
Relativistic Gigawatt BWT microwave pulse duration increased upon treating the slow-wave structure surface with a low-energy high-current electron beam
Pleiades Publishing Ltd - Tập 27 - Trang 150-152 - 2001
A. V. Batrakov, K. V. Karlik, S. A. Kitsanov, A. I. Klimov, I. N. Konovalov, S. D. Korovin, G. A. Mesyats, G. E. Ozur, I. V. Pegel’, S. D. Polevin, D. I. Proskurovskii, M. Yu. Sukhov
A new method of insulator surface treatment, which allows the electric strength of the material to be increased, is proposed and verified. Using this method for treating the slow-wave structure of a relativistic backward wave tube (BWT), the microwave pulse duration was increased from ∼6 to ∼30 ns at an output BWT radiation power of 3 GW.
Anomalous propagation of elastic waves through a boundary between liquid and magnetoacoustic material
Pleiades Publishing Ltd - Tập 29 - Trang 743-747 - 2003
M. M. Karpuk, D. A. Kostyuk, Yu. A. Kuzavko, V. G. Shavrov
We consider a longitudinal acoustic wave incident onto a plane boundary between a liquid and a magnetoacoustic medium representing an antiferromagnetic material with anisotropy of the easy plane type, occurring in the vicinity of an orientational phase transition with respect to magnetic field. The directions of propagation and the amplitudes of reflected and transmitted longitudinal and transvers...... hiện toàn bộ
High-speed plasma jet modification and doping of α-Fe
Pleiades Publishing Ltd - Tập 27 - Trang 619-621 - 2001
A. D. Pogrebnyak, Yu. N. Tyurin, A. P. Kobzev
Iron (α-Fe) samples were treated in a high-speed (up to 6 km/s) pulsed plasma jet using a plasmatron with a consumable (eroded) Mo electrode operated in specially selected regimes. As the number of jet pulses increases, the concentration of Mo within a 10-μm-thick surface layer of α-Fe varies in a nonmonotonic manner. In a 2-μm-thick layer, the oxygen content increases up to 50 at.%, while the con...... hiện toàn bộ
Negative displacement of bounded flexural wave beams in thin plates
Pleiades Publishing Ltd - Tập 23 - Trang 397-398 - 1997
N. S. Shevyakhov
The example of flexural waves in a thin plate is used to show that under certain conditions a beam may undergo negative displacement in purely mechanical systems.
A Monolithic Miniature Multi-Conductor Strip-Resonator Bandpass Filter
Pleiades Publishing Ltd - - 2021
B. A. Belyaev, A. M. Serzhantov, An. A. Leksikov, Ya. F. Bal’va, R. G. Galeev
A new monolithic design of a miniature bandpass filter for manufacture by means of multilayer printed-circuit-board technology has been developed. It is demonstrated using a fourth-order filter that multi-conductor strip resonators used in the design ensure both miniaturization and high selectivity of the device. The passband center frequency of the manufactured filter is  f0 = 546 MHz, the fracti...... hiện toàn bộ
Subwavelength imaging in a superlens of plasmon nanospheres
Pleiades Publishing Ltd - Tập 33 - Trang 264-266 - 2007
C. R. Simovski, S. A. Tretyakov, A. J. Viitanen
A structure comprising two lattices of silver or gold nanospheres is considered. It is shown that this structure can be used as a superlens capable of providing subwavelength imaging of a point source and a sub-wavelength spatial resolution of two sources at a distance within one wavelength.
Demonstration of the Effect of Resistive Switching of Individual Filaments in Memristor Ag/Ge/Si Structures Using Atomic Force Microscopy
Pleiades Publishing Ltd - Tập 47 - Trang 781-784 - 2021
V. A. Vorontsov, D. A. Antonov, A. V. Kruglov, I. N. Antonov, V. E. Kotomina, V. G. Shengurov, S. A. Denisov, V. Yu. Chalkov, D. O. Filatov, O. N. Gorshkov
The effect of resistive switching in individual dislocations in memristor Ag/Ge/Si(001) structures is demonstrated experimentally using atomic force microscopy with a conducting probe. A hysteresis is found in the current–voltage characteristics of dislocations, which is typical of bipolar resistive switching related to the formation and destruction of an Ag filament in a Ge layer as a result of d...... hiện toàn bộ
Experimental investigation of the effect of high-energy protons on charge-coupled devices
Pleiades Publishing Ltd - Tập 36 Số 7 - Trang 610-612 - 2010
K. N. Ermakov, Н. А. Иванов, O. V. Lobanov, V. V. Pashuk, M.G. Tverskoy, S. M. Lyubinskii
Sự ổn định của các nanobubble mang điện trong nước Dịch bởi AI
Pleiades Publishing Ltd - Tập 44 - Trang 1245-1247 - 2019
S. I. Koshoridze, Yu. K. Levin
Nghiên cứu cho thấy rằng các bọt khí kích thước nano được phát hiện một cách thực nghiệm trong môi trường nước xuất hiện một cách tự phát do sự tối thiểu hóa năng lượng Gibbs của hệ thống phân tán khí-lỏng. Áp suất khí tăng bên trong nanobubble dần dần cân bằng (theo định luật Henry) với áp suất khí quyển của không khí hòa tan trong nước. Bán kính của bọt khí giảm đến một mức độ nào đó, và bọt khí...... hiện toàn bộ
#nanobubble #nước #áp suất khí #năng lượng Gibbs #định luật Henry
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