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The new sulfides Y3Ni0.5SiS7, Sm3Ni0.5SiS7, and La3Ni0.5SiS7 exist in the quasi-ternary systems Y2S3 – NiS – SiS2, Sm2S3 – NiS – SiS2, and La2S3 – NiS – SiS2, respectively, for which the isothermal sections a...

Phase equilibria of the quasi-ternary systems Ag2S–BIVS2–CV2S3 (BIV– Ge, Sn; CV–As, Sb) were investigated using phase analysis based on XRD. Isothermal sections at 500 Kand glass formation regions in the respecti...

Thermolytic decomposition in a chloride-acid medium of a titanium aquacomplex precursor solution [Ti(OH2)6]3+•3Cl¯ as a result of its boiling at a temperature of (110-114) 0С is accompanied by precursor hydrolysis a...

The present paper deals with design of Si3N4 doped PVA/PEO new structures  to use in different optic, electronic, photonic and electric approaches with distinguished  characteristics included few cost, high corrosion r...

The conditions of isovalent substitution of Barium atoms by Strontium atoms in the A-position of the BaNd2In2O7 two-slab perovskite-like structure of Ba1-xSrxNdIn2O7 are established: 0

Zinc Selenide Nanoparticles (NPs) were fabricated by the aqueous techneque using cold plasma under atmospheric pressure with an exposure time of 3 min and a gas flow rate of 3 liters per minute. films�39; structural charact...

In 2018, we conducted a study of the terrestrial insect fauna of the Botanical Garden. Research was conducted at six areas: three areas in the meadow-steppe biotope, one area near a pond, and two areas in the forest part...

The article deals with a historical retrospective of the emergence of social entrepreneurship. Approaches to the definition of the concept of “social entrepreneurship” are given and characterized. They are broad, com...

The events of recent years have shown the need for regional studies. The problems of regionalism have a deep historical retrospective. The Second Polish Republic attempted to change the map of regionalism, in particula...

A new comprehensive theory for the field emission from the nanostructured semiconducting SiC was built with allowance for specially worked out analytical model of the field enhancement coefficient for the case of compara...

The phase equilibrium diagram of the Tm–Cr–Ge ternary system was constructed at a temperature 1070 K based on the results of X-ray phase, microstructural analyzes and energy-dispersive X-ray spectroscopy in the whole...

The problems of developing light-emitting structures based on CdTe with an extended range of operating temperatures and radiation-resistant parameters are studied. A technique for obtaining heterostructures has been mast...

The paper presents a simple one-step "green" approach to the synthesis of magnetite nanoparticles. The magnetite nanoparticles were synthesized using fruit extract obtained from grape peels and grape pulp. The formation ...

A comparative analysis of adsorption models application for the description of experimental isotherms of iron adsorption on two samples: natural bentonite and bentonite irradiated with microwave irradiation. Sorption iso...

The magnetoresistance of GaPxAs1-x (x = 0…0.45) whiskers with doping concentration of silicon in the range from the deep dielectric side of metal-insulated transition (~1017 сm-3) to its critical concentration (Nc ~ 5...

Ultrafine NiFe2O4 (T0) and NiFe2O4 / rGO composites have been synthesized by solution combustion method. The presence of rGO in the composite (33 wt.% (T1) or 66 wt.% (T2)) causes a decrease in the average particle siz...

The phase composition and morphology of boron-containing TiO2 nanoparticles obtained by the sol-gel method were investigated. The solution of titanium aqua complex [Ti (OH2)6]3+‧3Cl- was used as a precursor. Borate aci...

Although now it is customary to use magnetic hyperthermia in the treatment of oncological diseases as an auxiliary method, detailed modeling of the tissue heating process with parameters close to real ones will allow thi...

Review - Vovk, Kh. (1976). Studies in Ukrainian ethnography and anthropology. New York: Goverlia. 356 p.

Substantial variances in the bulk band gap of lithium tetraborate single crystal determined from numerous theoretical calculations as well as from experimental measurements give rise to the problem what is the true value...

With the application of a linear theory of elasticity of anisotropic crystals and the use of experimental values of elastic moduli Сij and compliances Sij given in the Landolt-Börstein tables, characteristic surfaces o...

In this work, to calculate the distribution of the excess minority carrier concentration in bilateral macroporous silicon, the solution of the diffusion equation for stationary conditions is used, which is written for a ...

The peculiarities of magnetic field propagation in an anisotropic magnetic medium are considered and the dependences of the longitudinal and transverse components of the magnetic field on the geometric dimensions are est...