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Vol. 11 (2008 year), No. 3
Asming V.E., Vinogradov Yu.A., Evtyugina Z.A., Kremenetskaya E.O., Prokudina A.V.
On results of observations on the Apatity infrasound complex
The geo-cemented stone on basis of the magnesium-ferrous slag and alkaline silicate solution has been obtained. It has been proved that ferriferous layered hydro alumina silicates (nontronite, limonite) and hydro pomegranates are formed as a result of hardening astringent based on the thin-grinding low slag and alkaline silicates' solution. Presence of water-resistant rock-forming silicate materials provides endurance of the cemented stone. The sorption properties of the synthesized materials from modeling solutions and real technological waste water of one of the Murmansk region enterprises have been studied. The saturated (by radionuclides) geo-cemented stone has been immobilized in the geo-polymeric cement structure. Tests on radionuclide lixiviation from the prepared compounds have been carried out. The lixiviation velocity has been proved to be considerably below normative requirements.
(in Russian, стр.7, fig. 9, tables. 0, ref 4, Adobe PDF, Adobe PDF 0 Kb)
Vol. 12 (2009 year), No. 2
Asming V.E., Jevtjugina Z.A., Vinogradov Yu.A., Fyodorov A.V.
Analysis of infrasonic signals generated by technogenic sources
In the paper the power consumption of the consumer power system is considered as value inverted to the electrical power factor. The power consumption reduction method and device for its realization by increasing the electrical power factor has been proposed.
(in Russian, стр.8, fig. 9, tables. 0, ref 4, Adobe PDF, Adobe PDF 0 Kb)
Vol. 12 (2009 year), No. 4
Kozyrev А.А., Rybin V.V., Zhirov D.V., Bilin А.L., Vinogradov А.N., Kasparian E.V., Vinogradov Yu.A., Semyonova I.E., Zhirova A.M.
Methodological principles of effective and safe open-pit mining at deep horizons of mineral deposits
The paper presents the investigation results of grindibility of copper-nickel ore sample, differences in the behavior of narrow grain size categories using rod and ball mill grinding. The characteristic mechanisms of destruction of the categories have been identified; the energy input on grinding has been estimated. Basing on the obtained data the choice of a two-stage scheme of grinding with rod mill at the first stage, and the ball mill at the second one for efficient ore preparation for flotation has been substantiated.
(in Russian, стр.10, fig. 8, tables. 0, ref 13, Adobe PDF, Adobe PDF 0 Kb)
Vol. 13 (2010 year), No. 4
Asming V.E., Kremenetskaya E.O., Vinogradov Yu.A., Evtyugina Z.A.
Criteria of explosions and earthquakes identification for estimation of seismic danger of the region
The system of seismic monitoring of the Kola Peninsula and adjacent areas has been described. Criteria of discrimination of explosions and earthquakes have been considered. It is shown that P/S body waves amplitudes ratio that is commonly used for explosion and earthquakes discrimination is not reliable in some cases. It is noticed that spectra of many man-caused seismic events vary slowly in time. A quantitative estimation of a spectrum variance in time has been developed. It can be used as a criterion of man-made events discrimination. Infrasonic signals registered by microbarographs and seismometers after seismic events confirm their explosive origin. Taking into account the criteria we have revised our data base of earthquakes. As a result of retrospective (since 1992) analysis of seismic events of the base an improved picture of seismic activity on the Kola Peninsula and adjacent areas has been developed.
(in Russian, стр.10, fig. 11, tables. 2, ref 3, Adobe PDF, Adobe PDF 0 Kb)
Vol. 16 (2013 year), No. 4
Asming V.E., Vinogradov Yu.A., Prokudina A.V.
Modeling of seismic location in three-dimensional media
The description and principle of operation of the Seismic configurator programme developed in the Kola branch of Geophysical Survey of RAS have been presented. The programme allows a user to specify 3D seismic medium velocity models, to locate seismic events and to model location errors caused by uncertainties of travel time models and onset picking errors. A new approach to modeling (the seismic medium is replaced by a random graph consisting of large number of vertices and edges) has been applied. Models have been specified by a simple parameters description language.
(in Russian, стр.6, fig. 8, tables. 0, ref 3, Adobe PDF, Adobe PDF 0 Kb)