A5087796113- Solar and Space Plasma Dynamics
- Ionosphere and magnetosphere dynamics
- Earthquake Detection and Analysis
- Astro and Planetary Science
- Geomagnetism and Paleomagnetism Studies
- Geophysics and Gravity Measurements
- Catalysis and Oxidation Reactions
- Solid-state spectroscopy and crystallography
- Luminescence Properties of Advanced Materials
- Catalytic Processes in Materials Science
- Crystal Structures and Properties
- Thermal and Kinetic Analysis
- Radio Astronomy Observations and Technology
- Stellar, planetary, and galactic studies
- Porphyrin and Phthalocyanine Chemistry
- Polyoxometalates: Synthesis and Applications
- Phase Equilibria and Thermodynamics
- Ferroelectric and Piezoelectric Materials
- Microwave Dielectric Ceramics Synthesis
- Gamma-ray bursts and supernovae
- Astronomical Observations and Instrumentation
- Glass properties and applications
- Extraction and Separation Processes
- Advancements in Battery Materials
- History and Developments in Astronomy
Hangzhou Dianzi University
2024
Institute of Informatics Problems
2024
Moscow State University
2024
Lomonosov Moscow State University
2009-2024
MIREA - Russian Technological University
2018-2024
Institute of Terrestrial Magnetism Ionosphere and Radio Wave Propagation
2010-2023
Moscow State University of Fine Chemical Technologies
2008-2023
Russian Academy of Sciences
2009-2014
Troitsk Institute for Innovation and Fusion Research
1991-2009
Moscow Architectural Institute
1994-2009
Abstract Type II solar radio bursts are among the most powerful events in emission meter wavelength range. It is generally accepted that agents generating type magnetohydrodynamic shock waves. But relationship between waves and other manifestations of large-scale disturbances atmosphere (coronal mass ejections, Morton waves, EUW waves) remains unclear. To clarify a problem, it important to determine conditions generation bursts. Here, model source based on within front collisionless wave...
The results of the spectroscopic studies (IR absorption, spontaneous Raman scattering) on orthophosphates Group I-III elements are presented. characteristic features vibrational spectra and influence characteristics crystal structure such discussed. bibliography includes 58 references.
Objectives. Chalcogenides of transition elements with low oxidation states, as well their substituted derivatives, remain a poorly studied class chemical compounds. Rhenium disulfide has many distinctive features and great application potential new twodimensional semiconductor. This is due to its unusual structure unique anisotropic properties. The presence weak interlayer bonding distorted octahedral (1T) suggests the possibility creating phases on basis. aim this work obtain study in...
The results of X-ray structural, IR and Raman spectroscopic, thermodynamic studies alkali metal molybdates tungstates A2MnO3n+1 (A = Li, Na, K, Rb, Cs; M Mo, W) are reviewed analysed. dependence the vibrational spectra, activation energies, crystal lattice energies on features structures these compounds is discussed. bibliography includes 51 references.
ABSTRACT The fine structure in the continuum radiation of type IV solar radio bursts is very rich various structures (zebra structure, fibres, pulsations, spikes, etc.). So far, however, no attention has been paid to isolated fibres that occasionally appear metre and decimetre ranges. Here we give discuss examples dynamic spectra such obtained many years ago (in waveband from 1969) as well recent microwave wavebands 2003–2013). Isolated are observed mostly range (although there both ranges),...
Formation of heterovalent Zr‐substituted solid solutions (up to 7 mol%) for Yb 3+ in Na 6 3 (PO 4 ) 5 and LiNa complex phosphates was studied by ceramic technique at 950°C. Obtained samples were investigated with X‐ray powder diffraction, infrared, impedance spectroscopy. (7 has ionic conductivity 1.6·10 −2 S/cm 300°C 4.8·10 −5 room temperature. An updated version phase diagram ScPO –Na PO –Li quasi‐ternary system provided.
The study is devoted to search for organometallic complexes with considerable dipole moments suitable the creation of new electret materials.The latter are formed by intercalation molecules a high moment into polymeric matrix.Titanyl and vanadyl etioporphyrin II were synthesized.The obtained compounds identified use electronic spectroscopy, NMR mass spectrometry liquid chromatography, studied vibrational spectroscopy X-ray photoelectronic spectroscopy.Quantum chemical calculations...
Type III radio bursts are produced near the local electron plasma frequency fp and its harmonic 2fp by fast electrons ejected from solar active regions moving through corona wind. The coronal have dynamic spectra with rapidly falling time, typical duration being about 1–3 s. In present paper, 37 well-defined type (25–450 MHz) analyzed. results obtained substantiate an earlier statement that dependence of central emission on time can be fitted to a power-law model, f(t) ∝ (t − t0)−α, where α...
Synthesis of bismuth complexes etioporphyrin II, protoporphyrin IX dimethyl ester and three tetraphenylporphyrin derivatives in which iodine atom is an extraligand, was carried out.Obtained compounds were characterized by mass spectrometry, UV-vis, 1 H NMR spectroscopy, HPLC.The study X-ray spectra showed that valence +3.Bismuth coordinates four nitrogen atoms one atom.All have equivalent binding energies.IR absorption free porphyrins bases their studied.The comparison IR neat shows no...