Rustem R. Khusnutdinov

• PhD
• Head of Department Professor (Associate) at Kazan State Power Engineering University

The article considers the possibilities of using modern methods and tools in teaching the industry section of economic geography, in particular the geography of the fuel and energy complex. The authors propose to use methods and approaches that take into account the significant changes that occurred at the turn of the 20th-21st centuries during the...

RELEVANCE. The design and development of radio frequency (RF) coil sensors is an important engineering and, at the same time, fundamental task for those radio spectroscopic instruments that require an increase in sensitivity, measured as a signal-to-noise ratio (SNR). Radio spectroscopy of nuclear quadrupole resonance (NQR), especially in nitrogen...

THE PURPOSE. Study the possibility of using a laboratory nuclear magnetic resonance console as a device for detecting counterfeit medicines. The problem of detecting counterfeit and counterfeit medicines is now very acute. Consider the potential of applying the nuclear quadrupole resonance radiospectroscopy method to determine the authenticity and...

The experimental realization of the two-frequency 14N nuclear quadrupole resonance (NQR) technique with use of the gradiometer radiofrequency (RF) probe for applications in the remote detection of explosives and other substances has been proposed. The planar two-frequency gradiometer has been designed, modeled and manufactured. The regions, where t...

This article provides a diagnosing cell-to-cell variance with state-of-charge (SOC) estimate in series connected lithium-ion batteries. SOC estimation in voltage-based balancing increases the computational complexity of implementation. To avoid such problems, a simple current sensorless SOC estimation algorithm is proposed using a generalized exten...

The article is devoted to the study of the existing system of passenger rail transport in cities with a population of one million. Transport infrastructure is an important element of urban infrastructure and participates in the formation of agglomeration links. The article discusses the issue of the connectivity of the outer zone of the city with t...

The results of the study of the spectral and relaxation parameters of 63.65Cu nuclear magnetic resonance (NMR) in a local field in natural samples of the semiconductor mineral chalcopyrite (CuFeS2), which is characterized by a strong interplay of magnetic and electronic properties, are presented. The main attention was paid to the determination of...

The article presents an algorithm for estimating reliability parameters - probability of failure-free operation time and failure rate of low-voltage switching devices based on statistical data on failures of circuit breakers installed in control and protection circuits of such consumers as compressors, pumps and fans in industrial enterprises. The...

The 63,65Cu nuclear quadrupole resonance spectra and spin–lattice relaxation rate (1/T1) have been measured in the semiconductor compound CuAlO2. The value of the nuclei quadrupole interaction constant QCC = 56.24(6) MHz (T = 298 K) has been obtained. The broad maximum has been found in the temperature dependence of 1/T1 in the low-temperature regi...

The article analyzes some methods for calculating the loss of active power in lowvoltage industrial networks, taking into account the main influencing parameters. Equivalent resistance and losses of active power in radial and trunk circuits are determined. The errors of the equivalent resistance and the loss of the active power of the circuits rela...

Identification the medicines (paracetamol) by nuqlear quadrupole resonance tecnique.

The application of the multipulse sequences in nuclear quadrupole resonance (NQR) detection of explosive and narcotic substances has been studied. Various approaches to increase the signal to noise ratio (SNR) of signal detection are considered. We discussed two modifications of the phase-alternated multiple-pulse sequence (PAMS): the 180° pulse se...

New method of multifrequency nuclear quadrupole resonance (NQR) for the explosive detection has been proposed. This technique consists of application of the series of composite excitation circles, each consisting of two or three successive pulses of different frequencies. In this work, we study in detail the multipulse sequence consisting of n exci...

Nuclear Quadrupole Resonance (NQR) and Nuclear Magnetic Resonance (NMR) are very prospective methods of the bulk detection of explosives and illicit substances. Both methods are based on use of apparatus, which are very similar technically and in some cases could be applied simultaneously. We report our experimental works on NQR/NMR techniques for...

Nonuniform line broadening in quadrupole spin systems is analyzed. It is shown theoretically that this broadening is of the tensor type. This forms the basis of the method for analyzing the distribution of local inhomogeneities in the crystal lattice, which is verified experimentally on a sodium nitride sample.

A two-frequency coherent pulse spectrometer has been designed for seeking and recording nuclear quadrupole resonance spectra and studying coherence transfer processes, quasi-stationary states, and transient processes in multipulse sequences. The functional diagram of this spectrometer can be used in production of equipment for remote detection of e...

The application of multiple-pulse sequences consisting of two-transition composite pulses for remote nuclear quadrupole resonance detection of explosives and narcotics is discussed. The pulse sequence for obtaining these pulses is described and it is shown that these pulses are equivalent to the pulse applied at the third (nonirradiated) transitio...

The theoretical investigation of the multiple-pulse sequences in which the radio-frequency pulses are applied simultaneously at two transitions are presented. The time-independent solution of the quantum Liouville equation for the average Hamiltonian of inhomogeneous broadening in the sequence is obtained by the projection operator technique. This...

A simple and effective technique for calculating the transient signals in three-level spin systems irradiated at one and two frequencies is described. All possible signals are presented and discussed. The application of the two-frequency excitation technique for the investigation of the inhomogeneity of the crystalline lattice is suggested.