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Belousov A. V. Morozov V. N. Krusanov G. A. Moiseev A. N. Davydov A. S. Shtil A. A. Klimanov V. A. Kolyvanova M. A. Samoylov A. S. 《Biophysics》2020,65(4):541-547
Biophysics - Gold nanoparticles are promising radiosensitizers for proton radiotherapy. However, the physical mechanisms of gold nanoparticles radiosensitization remain unclear. In the present... 相似文献
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V. V. Alikaev A. A. Borshchegovskii V. V. Volkov M. M. Dremin Yu. V. Esipchuk A. M. Kakurin N. A. Kirneva A. Ya. Kislov D. A. Kislov I. V. Klimanov V. A. Kochin V. A. Krupin S. V. Krylov T. B. Myalton A. Yu. Novikov G. E. Notkin Yu. D. Pavlov V. V. Piterskii V. I. Poznyak I. N. Roi P. V. Savrukhin M. M. Stepanenko A. V. Sushkov V. M. Trukhin E. V. Trukhina V. V. Chistyakov 《Plasma Physics Reports》2000,26(12):991-999
In T-10 experiments, attempts were made to significantly exceed the Greenwald limit $\bar n_{Gr} $ during high-power (P ab=750 kW) electron-cyclotron resonance heating (ECRH) and gas puffing. Formally, the density limit $(\bar n_e )_{\lim } $ exceeding the Greenwald limit $({{(\bar n_e )_{\lim } } \mathord{\left/ {\vphantom {{(\bar n_e )_{\lim } } {\bar n_{Gr} }}} \right. \kern-0em} {\bar n_{Gr} }} = 1.8)$ was achieved for q L=8.2. However, as q L decreased, the ratio ${{(\bar n_e )_{\lim } } \mathord{\left/ {\vphantom {{(\bar n_e )_{\lim } } {\bar n_{Gr} }}} \right. \kern-0em} {\bar n_{Gr} }}$ also decreased, approaching unity at q L≈3. It was suggested that the “current radius” (i.e., the radius of the magnetic surface enclosing the bulk of the plasma current I p), rather than the limiter radius, was the parameter governing the value of $(\bar n_e )_{\lim } $ . In the ECRH experiments, no substantial degradation of plasma confinement was observed up to $\bar n_e \sim 0.9(\bar n_e )_{\lim } $ regardless of the ratio ${{(\bar n_e )_{\lim } } \mathord{\left/ {\vphantom {{(\bar n_e )_{\lim } } {\bar n_{Gr} }}} \right. \kern-0em} {\bar n_{Gr} }}$ . In different scenarios of the density growth up to $(\bar n_e )_{\lim } $ , two types of disruptions related to the density limit were observed. 相似文献
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K. A. Razumova V. V. Alikaev I. S. Bondarenko A. A. Borschegovskii V. A. Vershkov A. V. Gorshkov Yu. V. Gott Yu. N. Dnestrovskij V. V. Dreval M. M. Dremin L. G. Eliseev G. S. Kirnev A. Ya. Kislov I. V. Klimanov A. S. Kozachok A. D. Komarov V. A. Krupin L. I. Krupnik S. V. Krylov S. E. Lysenko A. A. Medvedev A. V. Melnikov T. B. Myalton G. E. Notkin A. Yu. Novikov Yu. D. Pavlov D. P. Petrov V. I. Poznyak I. N. Roy P. V. Savrukhin V. V. Sannikov S. V. Soldatov A. V. Sushkov V. M. Trukhin S. M. Khrebtov V. V. Chistyakov D. A. Shelukhin 《Plasma Physics Reports》2001,27(4):273-277
Abstract-the formation of transport barriers under electron cyclotron resonance heating and current drive in the t-10 tokamak is studied. in regimes with off-axis co-eccd and q L <4 at the limiter, a spontaneous transition to improved confinement accompanied by the formation of two electron transport barriers is observed. the improvement resembles an L-H transition. It manifests itself as density growth, a decrease in the Dα emission intensity, and an increase in the central electron and ion temperatures. Two deep wells on the potential profile (the first one at r/a L ≈0.6, where a L is the limiter radius, and the second one near the edge) arise during the transition. the internal barrier is formed when dq/dr~0 with q≈1 in the barrier region. 相似文献
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V. V. Alikaev A. A. Borshchegovskii V. A. Vershkov V. V. Volkov A. V. Gorshkov Yu. V. Gott S. A. Grashin M. M. Dremin L. G. Eliseev Yu. V. Esipchuk V. A. Zhuravlev A. M. Kakurin G. S. Kirnev N. A. Kirneva A. Ya. Kislov D. A. Kislov I. V. Klimanov V. A. Kochin V. A. Krupin S. V. Krylov A. V. Melnikov T. B. Myalton A. Yu. Novikov G. E. Notkin Yu. D. Pavlov V. V. Piterskii V. I. Poznyak I. N. Roi P. V. Savrukhin V. V. Sannikov S. V. Soldatov M. M. Stepanenko A. V. Sushkov K. N. Tarasyan V. M. Trukhin E. V. Trukhina L. N. Khimchenko V. V. Chistyakov D. A. Shelukhin 《Plasma Physics Reports》2000,26(11):917-930
An improved confinement regime with an external transport barrier (H-mode) is obtained during electron-cyclotron resonance heating of a plasma in the T-10 tokamak. A characteristic feature of this regime is a spontaneous density growth accompanied by a drop in the intensity of Dα line and an increase in βp by a factor of ~1.6. The threshold power for the L-H transition is close to that predicted by the ITER scaling. The best characteristics of the H-mode are achieved with decreasing q L to 2.2. It is shown that the external transport barrier arises for electrons, whereas the heat transport barrier insignificantly contributes to improved confinement. 相似文献
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N S Priamukhina V P Mashilov A A Kamyshleev A I Klimanov N I Givental' 《Zhurnal mikrobiologii, epidemiologii, i immunobiologii》1983,(8):74-79
The data on the proportion of S. boydii 4 in the general structure of the causative agents of dysentery, as well as in the intraspecific structure of S. boydii, in some areas of the USSR in 1977-1981 are presented. S. boydii strains 4, circulating in one of the areas where their proportion considerably increased in 1980-1981, corresponded to their taxonomic position in their biological properties, while forming a single biochemical variant according to the character of the fermentation of sorbitol, maltose and arabinose. These strains gave identical antibiotic sensitivity charts and showed pronounced multiple resistance to antibiotics, including ampicillin. The clinical features of the diseases caused by S. boydii 4 consisted in the sharply defined prodromal period and pronounced systemic toxicosis at the initial period of the disease, accompanied by the syndrome of moderate colitis localized mainly on the right side. 相似文献
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