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Doklady Earth Sciences - Studies of the opto-acoustic effects accompanying laser breakdown in water generated by focused laser and ultrasonic radiation are performed. For the first time, the... 相似文献
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Doklady Earth Sciences - 相似文献
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We present the results of sound scattering studies to estimate the distribution and dynamics of zooplankton in the upper sea layer under various conditions. The measurements of the sound scattering coefficients were carried out over different pathways during the ship motion and at individual stations at frequencies of 100–250 kHz. The studies were carried out in 2004–2014 in the Sea of Japan and in 2013 in the Eastern Arctic seas. The studies of sound scattering were performed simultaneously with net catches of plankton in situ. These data allowed us to study the details of correlation between the sound scattering coefficient and zooplankton concentration. The studies revealed significantly stronger sound scattering in the Eastern Arctic, which is related to the greater concentration of zooplankton, the migration of which differs strongly from the migration of plankton in the warm seas. 相似文献
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The diffusion of electrons through interstellar space, and the energy dependence of the diffusion coefficient are considered. Apart from the caseD=const the spectral index for electrons with spectral index γ0 changes according to γ0+μ→γ0+½μ+½→γ0+1 (D(E)=D0(E/E0)μ) for μ<1; for μ>1 to γ0+1→γ0+½μ+½→γ0+μ. We consider the radio emission spectrum in such a case. From a comparison with observations the limit μ≤0.4 is obtained. 相似文献
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Shakirov R. B. Cuong Do Huy Obzhirov A. I. Valitov M. G. Lee N. S. Legkodimov A. A. Kalgin V. Yu. Yeskova A. I. Proshkina Z. N. Telegin Yu. A. Storozhenko A. V. Ivanov M. V. Pletnev S. P. Sedin V. T. Bulanov A.V. Shvalov D. A. Lipinskaya N. A. Bovsun M. A. Makseev D. S. Thanh Nguyen Trung Anh Le Duc Luong Le Duc 《Oceanology》2021,61(1):147-149
Oceanology - Abstract—The paper gives brief results of comprehensive studies in the South China Sea obtained from a joint Russian–Vietnamese expedition in November 2019 (cruise 88 of... 相似文献
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Valitov M. G. Shakirov R. B. Lee N. S. Legkodimov A. A. Yakimov T. S. Ponomareva A. L. Kalinchuk V. V. Bovsun M. A. Bulanov V. A. Proshkina Z. N. Syrbu N. S. Korskov I. V. Kalgin V. Yu. Baldanova K. O. Okulov A. K. Makseev D. S. 《Oceanology》2022,62(1):139-141
Oceanology - The paper presents brief results of comprehensive studies of the water area of the Tatar Strait and Sea of Japan obtained on cruise 61 of the R/V “Akademik Oparin” in... 相似文献
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The results of field observations on exogenic morphogenesis in the upper reaches of the Cherek Balkarskii River (Kabardino-Balkaria) are presented. It is established that different components of the extreme morphogenetic process confined to the distribution area of unconsolidated Quaternary sediments are closely interrelated to form a peculiar geomorphological mechanism. 相似文献
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It is shown from an account of the detailed behaviour of the spectra of the electrons in the process of their diffusion, and from energy losses, that there must exist an extensive radio-halo around the Galaxy, with a volume luminosity close to that of the disc. The nature of the dependence of the spectral index of the radiation on the direction of observation is elucidated. This dependence must be accounted for when separating radiations of the disk and halo with the aid of the method proposed by Webster. 相似文献