The detection of nuclear quadrupole resonance signals with limited data
The denoising method of the pulse nuclear quadrupole resonance (NQR) signals was investigated for the case of the small signal to noise ratio. The maximum entropy method of the autoregressive model was applied for the analysis of the experimental NQR data. The obtained results show the efficiency of proposed ...
Theatrical interpretation of a literary work from the standpoint of semiotic creativity
... parts of a unique communicative space. These parts may be specified as the original communicative situation and the ‘derivatives’ characterized by semiotic creativity of their authors — the playwright and the directors. The concept of semiotic resonance is used as a tool that can help to deepen the analysis of the meaning construction in the heterogeneous discourse of drama. Semiotic resonance is understood as the correlations of recurrently used signs accompanied by the amplification of meaning ...
The investigation of the conditions of registration of the indirect nuclear quadrupole resonance signals
In this work some conditions allows to increase of the indirect nuclear quadrupole resonance are investigated. The proposed method based on the stochastic resonance phenomena in the input electronic circuits of spectrometer. This effect allows provide the essential raise of the signal-to-noise ratio.
1.
Гречишкин В.
...
Side resonances in diamond: influence of isotopic substitution of carbon
We discuss the structure of optically detected magnetic resonance (ODMR) spectra of diamond crystal. We propose the new approach to the calculation of hyperfine interaction in composed system, consisted of negatively charged nitrogen-vacancy (NV) center and nearby C13 nuclear spin. Energy levels, rule selection ...
Improving the efficiency of wavelet signal processing of NQR signals with modified Morlet basis functions
In this work it is shown that application of the modified function of Morle as basic function of wavelet-transformation has allowed α to achieve by a choice of optimum parameter increase in the permission of the non-stationary signals of magnetic resonance, essential localization separate a component of a multicomponent signal and to raise the accuracy of definition of spectral parameters strongly noisy signals.
1.
Mozzhukhin
G
.
V
.,
Molchanov
S
.
V
.,
Kupriyanova
G
.
S
.
et
...
Side resonances in diamond: Impact of hyperfine and nuclear quadrupole interactions
The structure of optically detected magnetic resonance spectra of diamond crystal is examined. It is shown that in the absence of external magnetic field the hyperfine structure of side resonances caused by the hyperfine interactions and is not influenced by the nuclear quadrupole interaction.
...
Fluorescence plasmon enhancement of organoluminophores in polymer and on silicon dioxide surface
It has been found that in the synthesised hydrosol of silver plasmon resonance on lengths of waves λ = 430 nm has. It has been observed that in the presence of silver nanoparticles on a surface of silochrom increases the fluorescence of rhodamine 6G molecules. Fluorescence enhancement rhodamine 6G molecules in matrix ...
Effect of crystallite size of powder on NQR relaxation time
... Romanenko K. V. et al. T2—T2 exchange in biofouled porous media // Diffusion Fundamentals. 2009. Vol. 10. P. 1.1—1.3.
2. Borgia G. C., Brown R. J. S., Fantazzini P. Uniform-Penalty Inversion of Multiexponential Decay Data//Journal of Magnetic Resonance. 2000. Vol. 147. P. 273—285.
3. Song Y. Q., Venkataramanan L, Hurlimann M. D. et al. T1—T2 correlation spectra obtained using a fast two-dimensional Laplace inversion // Journal of Magnetic Resonance. 2002. Vol. 154. P. 261—268.
4. Shan-shan ...
Ferromagnetic resonance research of multilayer structures for magnetic tunnel junctions
The article presents research on magnetic properties and magnetic interaction of a 3-layer ferromagnetic — insulator — ferromagnetic
nanoscale thin film structures by the ferromagnetic resonance method (FRM). The results proved by magnetic hysteresis measurement data
show FRM diagnostic possibilities for the functionality identification for multilayer structures for spintronics applications.
1.
Zutic
I., Fabian
J., Das Sarma
S. ...
Geometrical phase of NQR signals
The non-cyclic geometric phase of nuclear quadrupole resonance (NQR) signals, which is induced by the trajectory of nuclear magnetization motion upon the external pulse r. f. excitation, was studied. Analytical expressions for the geometric phases of NQR signals were obtained for the case of nuclei with ...
Magnetic resonance properties of Fe3Si/ MgO thin film structures
...
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Komoto O.
Surface modification, functionalization and bioconjugation of colloidal inorganic nanoparticles // JMMM. 2003.
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262. ...
Magnetiс–resonance properties of Fe3O4 thin films
Magnetiс—resonance properties of Fe3O4 thin films with sublayer Fe on МgO and on Si/SiO2 substrates have been investigated. The magnetic properties strengthening was established. This fact gives hope of success using of such structure as magnetic tunneling junction....
Oscillations, resonances and waves in a non-local medium with sources
... analytical solutions are presented in the finite form. The effects of monotonous and nonmonotonous (impulsive) reonomic sources are compared. The conditions for a transonic transition are indicated for the wave of perturbation in the temperature set. Resonance occurrences in the system «medium — energy source» are studied. The limits of oscillation stability/instability are determined. We found a dimensionless criterion including the inclination of the source function and the parameter of ...
The calculation of the spectrum of nuclear quadrupole resonance deuterium replaced methyl group
... магнитного резонанса // Вестник Балтийского федерального университета им. И. Канта. 2015. Вып. 4. Калининград. 2015. С. 7—11.
Ivanov A., Talatay A., Khalikov A.
nuclear quadrupole resonance, multiplicity
49-55
Application of radio physical methods for diagnostics of functional properties of magnetic tunnel transitions
... 2010. Вып. 4.
7. Durlam M., Naji P., DeHerrera M. et al. Nonvolatile RAM based on magnetic tunnel junction elements // Proc. IEEE Int. Solid-State Circuits Conf. Dig. Tech. Papers.2000. Feb. P. 130–131.
8. Youssef J., Layadi A. Ferromagnetic resonance study of Permalloy/Cu/Co/NiO spin valve system // J. Appl. Phys. 2010. 108. 053913.
9. Zakeri Kh., Lindner J., Barsukov I. et al. Erratum: Spin dynamics in ferromagnets:Gilbert damping and two-magnon scattering // Phys. Rev. 2007. B 76. 104416....
Transmitting antenna system for radio frequency methods of substance research
... for contactless search for connections of a certain type.
Ponimatkin V. E., Shpilevaya S. G., Goglev V. A., Burmistrov V. I.
transmitting antenna system, normally polarized wave, media interface, radio frequency irradiation, nuclear quadrupole resonance, contactless research methods
103-111
Optimization of parameters of antenna systems for radiofrequency irradiation of polycrystalline compounds
... that are in the volume of polycrystalline substances.
Ponymatkin V. E., Shpilevaya S. G., Goglev V. A., Burmistrov V. I., Popov A. A.
antenna system, multi-section inductor, equivalent resistance, propagation range, excitation of nuclear resonance signals, detection of objects in dielectric substances
74-83
A dipole antenna with a modified fractal structure of the «Sierpinski triangle» type
... — 2014 : тр. XII международной научной конференции. Калининград, 2014. Т. 2. C. 292—295.
Ponimatkin V.,Tipikin A., Kazakov A., Podlubnaja G.
аntenna-feeder devices, fractalized antenna, iteration, resonance frequency, dipole
63-69
On the analysis of NMR spectra
.... М., 1967.
3. Варшалович Д. А., Москалев А. Н., Херсонский В. К. Квантовая теория углового момента. Л., 1975.
Ivanov A., Ivanov A.
multiplet, entangled states, nuclear magnetic resonance.
7-11
Distribution of NQR relaxation times in the rotating frame of reference in micro-sized crystallites
... inversion of the longitudinal component of the nuclear magnetization in a rotating frame was used. The multimodal nature of distributions is explained by the influence of surface irregularities and impurities.
1. Slichter C. P. Principles of Magnetic Resonance // Springer-Verlag. 1990. P. 242—246.
2. Синявский Н. Я., Корнева И. П. Нутационная радиоспектроскопия ядерного квадрупольного резонанса : монография....
Double nuclear quadrupole resonanse 14N in some nitrogen-contained matters
...
Двухчастотный двойной ЯКР — ЯМР-резонанс в азотсодержащих соединениях // ЖХФ. 1983. №
11.
Grechishkin V. S., Shpilevoy A. A.
nitrogen-containing compounds, nuclear quadruple resonance.
54-58
10.5922/2223-2095-2009-4-11
The application of adaptive wavelet filtration for detection of signals of nuclear quadrupole resonanse
... based on wavelet transform coefficients and the adaptive and threshold methods. Special attention is paid to the automatic
detection of the threshold on the basis of statistical noise properties parameters.
1.
Latosinska J.
N.
Nuclear Quadrupole Resonance spectroscopy in studies of biologically active molecular systems — a review // Journal of Pharmaceutical and Biomedical Analysis. 2005. 38.
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. 577—587.
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Miller J.
B., Barrall G.
A.
Explosives Detection with Nuclear Quadrupole ...
The сross-correlation NMR spectroscopy as the method of study of the guest atom environment
... Magnetism, Clarendon Press,
Oxford
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Petit D., Korb J.
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Fictition spin-1/2 operators and multitransition nuclear relation in solid: General theory // Phys. Rev
. 1988.
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. 37.
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Kupriyanova G. S., Bagmet M. V.
nuclear magnetic resonance, multiquantum coherences, cross-correlation, anisotropy chemical shift.
89-95