Hydr ochemical Characteristics of Selenge River and its Tributaries on the Territory of Mongolia

Hydrochemical research of the Selenge and its main tributary the Orkhon river on the territory of Mongolia has been conducted. Concentrations of the main water ions were measured. Distribution of heavy metals was determined. Dynamics of biogenic elements (NO 3 - , NH 4 + , phosphates) and degree of phenol pollution was determined

Electronic and optical properties of β-Tb2(MoO4)3: DFT+U approach

Vlastnosti bazálního stavu β-Tb2 (MoO4) 3 jsou zkoumány za použití funkční hustoty teorie plus U-Hubbard Hamiltonian. Pro zjištění vlivu spin-polarizace na vlastnosti půdního stavu ortorombického β-Tb2 (MoO4) 3 jsme provedli výpočty spin-polarizace a spin-polarizovanou elektronickou strukturu pásma pro spin-up (↑) a spin-down (↓)The ground state properties of β-Tb2(MoO4)3 are investigated using the density functional theory plus U-Hubbard Hamiltonian. To ascertain the influence of the spin-polarization on the ground state properties of orthorhombic β-Tb2(MoO4)3, we have performed spin-polarization calculations and the spin-polarized electronic band structure for spin-up (↑) and spin-down (↓) are calculate