A5102954329- Molecular Spectroscopy and Structure
- Material Properties and Applications
- Spectroscopy and Laser Applications
- Industrial and Mining Safety
- Rocket and propulsion systems research
- Magnetic properties of thin films
- Advanced Chemical Physics Studies
- Engineering and Environmental Studies
- Atmospheric Ozone and Climate
- Inertial Sensor and Navigation
- Innovations in Concrete and Construction Materials
- Astrophysics and Star Formation Studies
- Aerospace Engineering and Applications
- Radiation Effects in Electronics
- Graphite, nuclear technology, radiation studies
- Material Science and Thermodynamics
- Fullerene Chemistry and Applications
- Electromagnetic Compatibility and Measurements
- Terahertz technology and applications
- Injection Molding Process and Properties
- Advanced Power Generation Technologies
- Quantum optics and atomic interactions
- Technology Assessment and Management
- Aquatic and Environmental Studies
- Coal and Coke Industries Research
Moscow Institute of Physics and Technology
2021-2024
Institute of Radio-Engineering and Electronics
2021-2024
First Pavlov State Medical University of St. Petersburg
2024
Moscow Power Engineering Institute
2024
Moscow Aviation Institute
2024
Tomsk State University of Control Systems and Radio-Electronics
2012-2023
Lipetsk State Technical University
2022
Russian Space Systems
2021
Engineering (Italy)
2021
American Society of Safety Professionals
2021
N-methylformamide, CH3NHCHO, may be an important molecule for interstellar pre-biotic chemistry because it contains a peptide bond. The rotational spectrum of the most stable trans conformer CH3NHCHO is complicated by strong torsion-rotation interaction due to low barrier methyl torsion. We use two absorption spectrometers in Kharkiv and Lille measure spectra over 45--630 GHz. analysis carried out using Rho-axis method RAM36 code. search N-methylformamide toward hot molecular core Sgr B2(N2)...
One of the most promising areas for use fullerenes and their derivatives is biology medicine. This due to fact that are highly reactive presence double bonds capable attaching various radicals, demonstrate high antioxidant activity, ability penetrate through lipid bilayer, modulate transmembrane ion transport. The review considers main biological properties water-soluble light fullerenes, which determine application in biomedicine.
In this work, we present the results of investigations performed on hematite (α-Fe2O3), which is an antiferromagnet with weak ferromagnetism. Through use Brillouin light scattering spectroscopy, studied experimentally excitation quasi-ferro- and antiferromagnetic modes in bulk hematite. We investigated influence relative mechanical strains, ϵyy, frequencies modes. Also, considered angular dependence frequency quasi-ferromagnetic mode external magnetic field. Our indicate that a suitable...
Abstract There is a considerable interest in development and realization of the terahertz-frequency range oscillators detectors. In this work concept temperature tunable THz oscillator theoretically developed. As an active element we suggest holmium orthoferrite near its reorientational phase transition. We show that heating spin system decreases threshold DC electric-current required for self-oscillations due to anisotropy constant reduction. Such temperature-tuning magnetic properties can...
Рассмотрен поляризационно-модуляционный метод измерения угла крена летательного аппарата по излученным горизонтально поляризованным сигналам радиомаяка, расположенного в точке с известными координатами.На борту сигналы радиомаяка принимаются антенной, одноканальном СВЧ-тракте которой установлен поляризационный модулятор, выпол
Rotational spectra of the methylamine and acetaldehyde molecules were recorded in frequency range between 80 120 GHz with sub-Doppler spectral resolution. Such resolution was achieved by means Lamb-dip observation. The main aim this study to search for torsionally mediated anomalous high-J hyperfine splittings molecules, similar that ones recently discovered methanol. Our current results show contrast methanol rotational transitions both do not have a resolved structure (besides usual...
High-resolution computer-controlled oscillator of 2-mm wave-range intended for the low temperature dielectrometer was designed and constructed. The proposed unit may be used as free-running source well phase locked being included to frequency synthesis system. Dependence dielectric loss vs some diamond-like materials measured using within range 110 145 GHz at temperatures 1 300 K.
Низькотемпературне дослідження втрат електромагнітної енергії в слабопоглинаючих матеріалах у діапазоні частот 110…140 ГГцПредмет і мета роботи.Предметом є спектральні та енергетичні характеристики дискових діелектричних резонаторів (ДДР) на модах шепочучої галереї (МШГ), виготовлених з напівпровідникових матеріалів малими втратами мікрохвильової енергії.Дослідження проведені для зразків матеріалів: кремній, легований золотом (Si:Au); алмаз, вирощений при осадженні газової фази (CVD-алмаз);...
Rotational spectra of the N-methylformamide HCONHCH <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> molecule were recorded in frequency range between 45 and 630 GHz. Analysis was carried out for trans conformer using Rho axis method where quadrupole hyperfine structure taken into account first order perturbation treatment. The analysed dataset contains 18914 A E transitions with J ≤ 62 ground, first, second excited torsional states. fit...
The results of essential improvement the microwave spectrometer for investigation spectra Rydberg state atoms are presented. was equipped by a new time domain (waveform) acquisition system, which allowed us to apply selection useful signal. Such solution significantly improved signal-to-noise ratio recorded spectra. result test measurement transition between states magnesium atom is
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