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Arun Poudel, Iuliia Dmitrieva, Regina Gumenyuk, Laura Mihai, Dan Sporea, Ofelia Muresan, Ion Rusen, Teemu Hakkarainen, Nadia G. Boetti, Tapio Niemi and Laeticia Petit
New Er3+, Yb3+ codoped phosphate glasses with the (98-x) (0.50P2O5-0.40SrO-0.10Na2O) -0.5Er2O3-1.5Yb2O3-xZnO (in mol %) composition were prepared by melting process with up to 10 mol % of ZnO. The impact of the changes in the glass composition on the the...
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Andrey V. Levchenkov,Ivan S. Gumenyuk
Pág. 30 - 36
The present system of displacement of the Kaliningrad region?s population results from a complicated historical process, during which the socio-economic, geopolitical and cultural conditions were repeatedly changed in which it was established. An analysi...
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V. G. Kuznetsov,P. O. Pshinko,I. V. Klimenko,A. V. Gumenyuk,S. M. Zahorulko
Pág. 23 - 33
Purpose.The purpose of the paper is: (1) the definition of perspectives development of Ukrainian railway tourism on the narrow gauge lines of Zakarpattia; 2) technical condition analysis of Borzhava narrow gauge railway for the project to restore the eff...
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