_________________________________________________________________________________________________ HIGH-FREQUENCY HYDRO ACOUSTIC SIGNALS (40 ґ 110 HZ), PRECEDING EARTHQUAKES , ON THE PACIFIC SHELF OF THE KAMCHATKA PENINSULA Victor E. Morozov P. P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia E-mail: rdfrmoroz@mail.ru ABSTRACT The local Kamchatka earthquake catalogue data and ... No micro earthquakes were recorded only in the second, which was not followed by EQ. ...

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... The laser system in which an optoelectronic negative feedback is realized by means of a signal reflected from an intracavity Pockels cell polarizer is proposed and tested. The design provides flexible control over pulse train time structure. ... Stable self -mode-locking occurs due to time delay in feedback control system corresponding to light pulse passage through the Pockels cell at the moment of low intracavity losses. ... The scheme of discontinuous control in the laser is shown in Fig. ...

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... 2013: Waiting for something better Year of Environmental Protection in Russia WWF Russia achievements in 2012 The long-awaited Beringia Day of reserves and national parks in Russia Developing the resources of the continental shelf Eliminating accumulated environmental damage Sport and the Environment Russian-Swedish cooperation The Environmental Protection Programme Wild reindeer in the Barents Sea region Editorial. ... But what if this will become the symbol of the Russian Year of the Environment? ...

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