The possibility of passive acoustic monitoring of a Scuba Diver     

V. I. Korenbaum  S. V. Gorovoy  A. A. Tagiltsev  A. E. Kostiv  A. E. Borodin  I. A. Pochekutova  A. M. Vasilistov  A. C. Krupenkov  A. D. Shiryaev  D. I. Vlasov 《Doklady Earth Sciences》2016,466(2):187-190

The problem of controlling the state and location of scuba divers is of importance. This work consider the possibility to use for this purpose a low-frequency noise of a scuba diver. The noise of a scuba diver under a dry swimming suite near the trachea and in the water at a distance of 50 m was recorded.It wa shown that both sygnals are characterized by the presence of quasi-periodic components induced by the amplitude modulation of wide-band breathing noises by the brething rhythms of a scuba diver. The quasi-periodic componentss distinguished can be used to evaluate the physiological parameters of the state of a scuba diver and to establish his location.  相似文献   

The First Precise Data on the Age of Charoite Mineralization (Eastern Siberia,Russia)     

A. V. Ivanov  V. A. Gorovoy  D. P. Gladkochub  A. S. Shevelev  N. V. Vladykin 《Doklady Earth Sciences》2018,478(2):179-182

Charoite is a unique mineral and a rock of the same name. It is known from the only deposit in the world at the contact with Early Cretaceous syenite and other alkaline rocks of the Malyi Murun massif. The data on ⁴⁰Ar/³⁹Ar dating of tinaksite, tokkoite, and frankamenite associated with charoite are reported in this paper. All these minerals, except for frankamenite, have shown clear plateau ages overlapping with each other within the analytical errors. The weighted mean of the plateau ages of tinaksite, tokkoite, and microcline is 135.86 ± 0.26 Ma. Considering that these minerals are syngenetic to charoite, this age is the time of charoite crystallization. Frankamenite with an older age (137.55 ± 0.46 Ma) may reflect the polychronous crystallization of the charoite association.  相似文献   

Sm–Nd Isotope Systematics of the Cenozoic Sand Deposits in the Muya Depression (Eastern Flank of the Baikal Rift Zone)     

Kotov  A. B.  Skovitina  T. M.  Kovach  V. P.  Velikoslavinskii  S. D.  Buchnev  I. N.  Adamskaya  E. V.  Gorovoy  V. A. 《Doklady Earth Sciences》2021,499(2):616-618

Doklady Earth Sciences - Sm–Nd isotope–geochemical studies of the Cenozoic sand deposits of the Muya Depression (eastern flank of the Baikal rift zone), which is located on the border...  相似文献