Effect of crystallite size of powder on NQR relaxation time
The experimental study of the influence of the effect size of the crystallites in the powders on the form and the width of the 35Cl NQR lines in the potassium chlorate, as well as the spin-spin and spin-lattice relaxation is described. It is established that the width of the NQR lines in the direct method of detection is increased, and the relaxation times are reduced with a decrease in the average crystallite size, which is due, mainly, due the process of spin-spin ...
Distribution of NQR relaxation times in the rotating frame of reference in micro-sized crystallites
This article presents the results of an experimental study into the effect of powder crystallite size on spin-lattice relaxation times in a rotating frame for 35Cl NQR in potassium chlorate, as well as the nutation interferograms. To obtain the distribution of relaxation times, a multi-exponential decay inversion of the longitudinal component of the nuclear magnetization ...
Mathematical Model of Intramolecular Tautomeric Transformation and the Processes of a Relaxation of the Proton
... proton as a result of its interaction with the surrounding medium simulated by the quantized field of radiation. Effective adiabatic potentials of the proton are approximated by the parabolas of various curvatures. The estimation for the vibrational relaxation time and the formula for the constant of tautomeric equilibrium.
1.
Грибов Л. А., Дементьев В. А., Завалий М. В. и др.
Компьютерное моделирование изомеризации сложных ...
The border as a barrier and an incentive for the structural economic transformation of the Kaliningrad exclave
... response, the state may reinforce the barrier nature of borders by modifying visa requirements and customs regulations, thereby impeding the free movement of citizens, or even going as far as closing the border. Alternatively, state policy may involve the relaxation of border restrictions and the reallocation of border functions as a result of political integration, as witnessed in the case of the Schengen Area. Border adaptation is not the exclusive domain of the state: regional and local authorities,...
A mathematical simulation and a numerical investigation of dynamics of intramolecular tautomerny transformation without considering processes of a proton relaxation. Part I. A description of a mathematical model
... tautomeic transformation caused by vertical transition between different adiabatic potentials with two minima divided by potential barrier offered. Formula for the probability function defining time of tautomer transformation without regard to vibronic relaxation is received.
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The method of multipulse registration of nuclear magnetic resonance signal in unhomogeneous magnetic field
This paper presents the results of a series of experiments whose purpose was to investigate the possible use of composite pulses to improve the homogeneity of the magnetic field and study the possibility of identifying compounds based on the relaxation characteristics of the NMR signals.
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The influence of implantation on the bright-ness of nitrogen-vacancy centers
... method that uses a complete set of commuting operators (CSCO). Each state is characterized by a single set of values of CSCO. The properties of the spin states change at the level anti-crossing (LAC). This change leads to an increase in the spin-lattice relaxation rate and to a change in the ODMR spectrum. The LAC can occur during implantation and thus influence the observed yield of NV- centers of a certain type. We assume that during cascade transitions between the states of some NV- centers obtained ...
Carbon isotope substitution and quasi-intersection of energy levels in diamond
... NV–-center at the quasi-intersection level are considered as a possible cause of changes in the photoluminescence intensity of NV–-centers.
Ivanov A. I., Kulagina A. A., Shpilevoy A. A.
crystal diamond, quasi-intersection of energy levels, relaxation, Zeeman splitting, hyperpolarization
104-113
Photoluminescence of the 15NV–-center created by implantation
... ensembles in diamond. Appl. Phys. Lett. 97, 174104 (2010).
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Cognitive training as a method of developing cognitive functions in young athletes
... cognitive functions. The study shows a positive influence of the method proposed on the state of cognitive functions in young athletes in the recovery period of the training cycle. The results obtained can significantly improve the effectiveness of relaxation exercises in young athletes.
1. Величковский Б. Б. Возможности когнитивной тренировки как метода коррекции возрастных нарушений когнитивного ...
A calculation of the diffusion coefficient of solids in watercourses
The results of the solution of the integral equations of motion numerical method presented in dimensionless form related to the relative inertia of the particles and the relaxation time of the particle. It is found that when the increase in the relative inertia of the particles, decreases the coefficient of turbulent diffusion of the dispersed phase compared to the ratio of the carrier medium. Increase from-wearing leads ...
On interaction of a qubit with a fluctuating environment
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Fluorescence plasmon enhancement of organoluminophores in polymer and on silicon dioxide surface
... флуоресценции от расстояния между адсорбируемой молекулой и металлической поверхностью // ЖПС. 2001. Т. 68, № 6. С. 757—760.
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