Ust-tashli barrow with "mustache" in the Orenburg region

This article presents archeoastronomical the study is the first to open Ust-Tashlinskogo barrows with "mustache" (Orenburg region), Orenburg geologists, local historians L.P. Goleva, O.A. Golev, M.O. Goleva. Such barrows with "mustaches" are found in the vast territory from Eastern Turkestan to the Dnieper, but the largest number of them are located in Kazakhstan and the Southern Urals. Archaeological investigations of monuments of this type reveal their cultural identity related to tasmolinskiy culture on the territory of Kazakhstan, starting from the VIII century BC and spread on the territory of the Southern Urals to the VIII century ad, media Hun or Turkic culture. Most archaeologists have maintained that the barrows with "mustache" have astronomical structure. Archaeoastronomical studies of these monuments still have a controversial interpretation and do not have a clear methodology. In this article, on the example of Ust-Tashlinskogo mound, is a suggested archeoastronomical detailed study of such monuments, which can serve as a basis for archeoastronomical techniques research and other barrows with "mustache"

Phase composition of cathodic deposits synthesized in flinak-k2taf7-kbf4 melt

The phase composition of cathodic deposits synthesized from FLINAK-K2TaF7-KBF4 melt has been studied by the X-ray diffraction method. It is shown that boron content in the electrodeposit grows as the cathodic potential is increased from peak R1 to peak R4 in the voltammogram. The scheme of changes in the phase composition depending on the increasing current density is given as follows: {β-Ta + Ta2B}R1 → {β-Ta + (Ta3B4 TaB)}R2 → {TaB2}R3 → {TaB2 + B}R4