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I. S. Alekseev I. E. Ivanov P. S. Strelkov V. P. Tarakanov D. K. Ulyanov 《Plasma Physics Reports》2017,43(3):340-345
A method based on the detection of emission of a dielectric screen with metal microinclusions in open air is applied to visualize the transverse structure of a high-power microwave beam. In contrast to other visualization techniques, the results obtained in this work provide qualitative information not only on the electric field strength, but also on the structure of electric field lines in the microwave beam cross section. The interpretation of the results obtained with this method is confirmed by numerical simulations of the structure of electric field lines in the microwave beam cross section by means of the CARAT code. 相似文献
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Rapid temperature increases (1 degree C for 5-10 sec) cause inhibition of firing rate of L. stagnalis pacemakers due to fast activation of the sodium pump. Slow warming to 22 degrees-24 degrees C has an opposite effect; it increases the firing rate. Different responses of the pacemakers to the heating rate explain the features of the microwave effect on the neuron electrical activity. 相似文献
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Elisa Villa Aleksander S. Alekseev James E. Barrick Darwin R. Boardman Alexandra V. Djenchuraeva Beate Fohrer Holger Forke Natalya V. Goreva Philip H. Heckel Tatiana N. Isakova Olga Kossovaya Lance L. Lambert María-Luisa Martínez-Chacn Carlos A. Mndez Tamara I. Nemyrovska Svetlana Remizova Elias Samankassou Luis C. Snchez de Posada Katsumi Ueno Greg Wahlman David M. Work 《Palaeoworld》2009,18(2-3):114-119
Studies carried out for more than 10 years by the Task Group to establish GSSPs at the base of the Moscovian–Kasimovian and Kasimovian–Gzhelian boundaries have resulted in the proposal that the level at which the conodont species Idiognathodus simulator (Ellison, 1941) first appears be selected to mark the base of the Gzhelian Stage. This expands this eastern European chronostratigraphic unit to a global scale.I. simulator (sensu Barrick et al., 2008) has been identified so far in Midcontinent and eastern North America, the Moscow and Donets basins and southern Urals of eastern Europe, and in south-central China. Correlation of this level based on this species and other conodont species can be reinforced in some areas by ammonoid and fusulinid data. 相似文献
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Physiological and biomechanical effects of aerobic exercise varying in intensity were studied on the basis of the subjects’ perceived exertion. It was demonstrated that exercise regulated with the use of a 50–100 rating scale was characterized by reliably stable heart-rate and respiratory reactions and biomechanical responses. The relative working heart rate (HR) expressed in percent of the individual HRmax was found to be closely correlated with the values on the 50–100 scale within a wide range during exercise with constant or increasing perceived exertion. 相似文献
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Marina Gulyaeva Ivan Sobolev Kirill Sharshov Olga Kurskaya Alexander Alekseev Lidia Shestopalova Anna Kovner Yuhai Bi Weifeng Shi Michael Shchelkanov Alexander Shestopalov 《中国病毒学》2018,33(5):449-452
正Dear Editor Marine mammals are widely distributed and can be found almost in all coastal waters and coastlines around the world. The interface areas between marine and terrestrial environments provide natural habitats for aquatic and semiaquatic mammals as well as for reservoir species of avian influenza viruses (AIV)(Runstadler et al. 2013). Previous 相似文献
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