Development of the Design of Super-Multiperiod Structures Grown by Molecular-Beam Epitaxy and Emitting in the Terahertz Range

Journal of Experimental and Theoretical Physics - A design of terahertz (THz) radiation source has been developed based on an AlGaAs/GaAs superlattice grown by molecular-beam epitaxy. The gain and...     

Mass Ratios and Proton Pairing for Isotones with <Emphasis Type="Italic">N</Emphasis> = 20, 50, and 82

Different estimates of the even–odd effect for the nuclear mass surface are discussed. The proton-number dependence of the energy gap is derived from the measured masses of the N = 20, 50, and 82 isotones with closed neutron shells. Its interrelation with the properties of external proton shells is demonstrated, and the effects of proton pairing are considered along with the microscopic nuclear structure.     

Measurement of the Yield and Angular Distributions of Gamma Rays Originating from the Interaction of 14.1-MeV Neutrons with Chromium Nuclei

Physics of Atomic Nuclei - The reaction induced by the inelastic scattering of 14.1-MeV neutrons on chromium nuclei is studied by means of the tagged-neutron method at the TANGRA (TAgged Neutrons...     

On the positive fragment of the polymodal provability logic GLP

The fragment of the polymodal provability logic GLP in the language with connectives ┬, Λ, and 〈n〉 for all n ∈ ω is considered. For this fragment, a deductive system is constructed, a Kripke semantics is proposed, and a polynomial bound for the complexity of a decision procedure is obtained.