Gunn Oscillators Based on Shielded Dielectric Resonators with Mechanical Frequency Tuning

The features of Gunn oscillators based on shielded dielectric resonators with whispering gallery modes and ray oscillations are investigated. Their comparative analysis for oscillators with different dielectric resonant structures is carried out

Self-Adjointness of Generalized MIC-Kepler System

We have studied the self-adjointness of generalized MIC-Kepler Hamiltonian, obtained from the formally self-adjoint generalized MIC-Kepler Hamiltonian. We have shown that for \tilde l=0, the system admits a 1-parameter family of self-adjoint extensions and for \tilde l \neq 0 but \tilde l <{1/2}, it has also a 1-parameter family of self-adjoint extensions.Comment: 11 pages, Latex, no figur

Registration of Electrons with Energies Greater than 30 Kev in the Near-lunar Space

Measured high energy electron flux in lunar environment by gas-discharge counter on lunar prob

Registration of Solar Cosmic Rays on the AMS ''luna-11''

Proton flux measurements onboard lunar prob

Vertical Structure of the Milky Way Disk with Gaia DR3

Using a complete sample of about 330,000 dwarf stars, well measured by Gaia DR3, limited to the galactic north and south solid angles (Formula presented.) and up to a vertical distance of 2 kpc, we analyze the vertical structure of the Milky Way stellar disks, based on projected tangential velocities. From selected subsamples dominated by their corresponding population, we obtain the thin and thick disk scale heights as (Formula presented.) pc and (Formula presented.) pc, respectively. Then from the simultaneous fitting of the sum of two populations over the whole sample, assuming these scale heights, we estimate the thick-to-thin disk number density ratio at the galactic plane to be (Formula presented.), which is consistent with a previous result by the authors: in the galactic plane there is a significant number of thick disk stars, possibly as many as thin disk ones, which also points to the existence of more thick disk stars than generally thought. The overall fit does not closely follow the data for (Formula presented.) pc and points to the presence of more stars beyond the thin disk that cannot be accounted for by the two-disk model

Aneurysm of internal carotid artery, which simulated paratonsillary abscess (clinical case)

This article describes a rare case of paratonsillar abscess imitation among the patients with the aneurysm of ICA. The purpose of the study is to describe the methods of this disease diagnosing using the example of a clinical case, to give a general description of this nosology occurrence frequency, and to recommend a detailed approach to the differential diagnosis among this category of patient

Microwave Oscillator with the Shielded Dielectric Resonator

A Gunn oscillator with partially shielded hemidisk quasioptical resonator is investigated experimentally in this paper. The investigations of the generation characteristics of oscillations by the semiconductor diode in this resonator are carried out for the different radial co-ordinates of the oscillator active element. The advantages of the investigated oscillator in comparison with the oscillator with an open dielectric resonator are show