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Results: 37

• The method of multipulse registration of nuclear magnetic resonance signal in unhomogeneous magnetic field

  ... 4. Blumich B., Casanova F., Appelt S. NMR at low magnetic fields // Chemical Physics Letters. 2009. N 477. P. 231—240. 5. Sakellariou D., Meriles A., Moule A., Pines A. Variable rotation composite pulses for high resolution nuclear magnetic resonance using inhomogeneous magnetic and radiofrequency fields // Chemical Physics Letters. 2002. N 363. P. 25—33. 6. Shaka A. J., Freeman R. Composite pulses with dual compensation // Journal of Magnetic Resonance. 1983. N 55. P. 487—493. 7. ...

• 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 ...

• 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: 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. ...

• 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. Р . 577—587. 2. Miller J.   B., Barrall G.   A. Explosives Detection with Nuclear Quadrupole ...

• 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....

• 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 ...

• Building transmitter circuit for the study of parameters of system of secondary emitters

  ... field on the stage. The measurements of the distribution of magnetic field in облучателе to judge the appropriateness of the use of the system in experimental techniques. 1. Suits B. H., Garroway A. N., Miller J. B., Sauer K. L. 14 N magnetic resonance for materials detection in the field // Solid State Nucl. Magn. Reson. 2003. № 24,P. 123—136. 2. Синявский Н. Я., Шпилевой А. А. Особенности косвенной регистрации сигналов ядерного ...

• 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 ...

• 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....

• 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 ...

• 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

• Photoluminescence of the 15NV–-center created by implantation

  ... detection of nitrogen-Vacancy ensembles in diamond. Appl. Phys. Lett. 97, 174104 (2010). 3. Dolde F. et al. Electric-field sensing using single diamond spins. Nature Physics 7, 459 (2011). 4. Hall L. T., Kehayias P., Simpson D. A. et al. Electron spin resonance spectroscopy via relaxation of solid-state spin probes at the nanoscale. arXiv:1503.00830v1[quant-ph] (2015). 5. Jarmola A. et al. Optically detected magnetic resonances of NV ensembles in 13C enriched diamond. arXiv:1608.08706v1[quant-ph] (2016)....

• Magnetic resonance properties of Fe3Si/ MgO thin film structures

  ... Теоретическая физика. М ., 2003. Т . 8. 13. Lenz K., Kosubek E., Baberschke K., Wende H. et al. Magnetic properties of Fe 3 Si ∕ GaAs(001) hybrid structures // Phys. Rev. 2005. N 72. 144411. 14. Smit J., Beljers H.-G . Ferromagnetic resonance absorption in BaFei 2 Oi 9 a highly anisotropic crystal // Philips Res. Rep. 1955. N   10. P. 113. 15. Komoto O. Surface modification, functionalization and bioconjugation of col­loidal inorganic nanoparticles // JMMM. 2003. N   262. ...

• 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 ...

• 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 ...

• Numerical model operation of the mass transfer of the disperse phase of aerosol in nonlinear wave fields for axisymmetric quasithree-dimensional geometrical statement

  The article describes numerical modelling of fluctuations of an aerosol column in pipes at resonant frequencies. The author suggests a mathematical model of dynamics of the heterogeneous medium-mix with approximately equal component mass fractions. The mathematical model suggests the solu­tion of a dynamics equation system for each of the ...

• The dynamics of localized pulse as solutions of Davey — Stewartson II equations

  ... — Stewartson II equation is examined; it is shown that such solutions tend to lose the locality properties with time scale corresponding to a characteristic space scale of initial localization. The locality loss manifests itself with emergence of resonance spikes, whose total number is determined by the asymptotic behavior of support function on infinity. In particular, the exponentially localized perturbations split into an infinite number of the resonances. 1.  Arcadiev V.   A., Pogrebkov ...

• 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....

• 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

• 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

• 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

• Polarization transfer in the NV– — P1 system in diamond

  ... polariza­tion can be transferred efficiently from the electron spin of the NV center to the electron spin of the P1-center. 1. Дирак П. А. М. Принципы квантовой механики. М., 1979. 2. Ivanov A. A., Ivanov A. I. Side resonances and metastable excited state of NV–-cen­ter in diamond. arXiv:1701.04097v1[cond-mat.mes-hall]. 3. Talatay A. A., Ivanov A. I., Halikov A. T. Level anti-crossing in 13C enriched di­amond. IEEE Xplore // 2018. 19 F. 3086. doi: 10.1109/PIERS-FALL....

• Research of process in bistable system when passing the mix of the harmonious signal and «white» noise

  ... signal-to-noise ratio at the output of the system are defined. The decision on practical implementation of the effect in electronic circuits of various purposes is submitted. 1. Neiman A., Schimansky-Geier L., Moss F. Linear response theory applied to stochastic resonance // Phys. Rev. 1997. E 57. R9. 2. Рытов С. М. Введение в статистическую радиофизику. М., 1986. Ч. 1 : Случайные процессы. 3. Лайонс Р. Ци фровая обработка сигналов....

• About the method of estimating the parameters of seismic signals

  ... Transaction on Acoustics Speech, and Signal Processing. 1990. Vol. 38, № 5. P. 814–824. 3. Lin Yung-Ya, Hodkinson P., Ernst M., Pines A. A Novel Detection–Estimation Scheme for Noisy NMR Signals: Applications to Delayed Acquisition Data // J. Magn. Reson. 1997. Vol. 128. P. 30—41. 4. Гречишкин В. С., Гречишкина Р. В., Персичкин А. А., Шпилевой А. А. Методы спектрального оценивания в локальном ЯКР при наличии ...

• 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

• Dynamical invariants and manipulation of electron spin in a quantum dot

  ... with quantum dots // Phys. Rev. 1998. A 57. P. 120—126.  2. Rashba E. I., Efros Al. L. Orbital Mechanisms of Electron-Spin Manipulation by an Electric Field // Phys. Rev. 2003. Lett. 91. 126405. 3. Rashba E. I. Theory of electric dipole spin resonance in quantum dots: Mean field theory with Gaussian fluctuations and beyond // Phys. Rev. 2008. B 78. 195302. 4. Boyer de la Giroday A. et al. All-electrical coherent control of the exciton states in a single quantum dot // Phys. Rev. 2010. B ...

• The сross-correlation NMR spectroscopy as the method of study of the guest atom environment

  ... Magnetism, Clarendon Press, Oxford . 1991. 9. Petit D., Korb J.   P. Fictition spin-1/2 operators and multitransition nuclear rela­tion in solid: General theory // Phys. Rev . 1988. V . 37. P . 5761. Kupriyanova G. S., Bagmet M. V. nuclear magnetic resonance, multiquantum coherences, cross-correlation, anisotropy chemical shift. 89-95

• The resonance of a tragic sound: G. Ivanov’s poetry in B. Ryzhy’s interpretation

  The author analyses the specific features of B. Ryzhy’s poetry, showing that G. Ivanov’s works influenced his poetic manner. The author reveals the reasons of commonality of their existentialistic worldview, which was predetermined by some biographic and sociocultural factors. Reinterpreting G. Ivanov’s key motifs and imagery, B. Ryzhy enriches his lyrics by bringing in Soviet and post-Soviet connotations. G. Ivanov’s tragic intonation gains a new sound expressing the experience of man living in...

• he new formula of the liver volume calculation: the integration into the automatic ultrasound diagnostic work station (AWS) "Assistant"

  ... 2014. Vol. 30, № 6. P. 296—306. 9. Zoli M., Pisi P., Marchesini G. et al. A rapid method for the in vivo measurement of liver volume // Liver. 1989. Vol. 9, № 3. P. 159—163. 10. Glenn D., Thurston D., Garver P., et al. Comparison of magnetic resonance imaging and ultrasound in evaluating liver size in Gaucher patients // Acta Haematol. 1994. Vol. 92, № 4. P. 187—189. 11. Elstein D., Hadas-Halpern I., Azuri Y., et al. Accuracy of ultrasonography in assessing spleen and liver size in patients ...

• The ultrasound volumetry: selecting optimal formula based on linear liver dimensions (ex vivo study)

  ... ultrasonography in assessing spleen and liver size in patients with Gaucher disease: comparison to computed tomographic measurements // J. Ultrasound Med. 1997. Vol. 16(3). P. 209—211. 17. Glenn D., Thurston D., Garver P., Beutler E. Comparison of magnetic resonance imaging and ultrasound in evaluating liver size in Gaucher patients // ActaHaematol. 1994. Vol. 92(4). P. 187—189. 18. Patlas M., Hadas-Halpern I., Abrahamov A. et al. Spectrum of abdominal sonographic findings in 103 pediatric patients with ...

• Use of the genetic algorithm for devising a formula for liver volumetry

  ... ultrasonography in assessing spleen and liver size in patients with Gaucher disease: comparison to computed tomographic measurements // J. Ultrasound Med. 1997. Vol. 16(3). P. 209—211. 16. Glenn D., Thurston D., Garver P., Beutler E. Comparison of magnetic resonance imaging and ultrasound in evaluating liver size in Gaucher patients // Acta Haematol. 1994. Vol. 92(4). P. 187—189. 17. Hiroshige S., Shimada M., Harada N. et al. Accurate preoperative estimation of liver-graft volumetry using three-dimensional ...

• Assessment of hepatic volume ex vivo by the formulas of the ultrasound volumetry

  ... Vol. 22, № 2. P. 125—130. 14. Zoli M., Pisi P., Marchesini G. et al. A rapid method for the in vivo measurement of liver volume // Liver. 1989. Vol. 9, № 3. P. 159—163. 15. Glenn D., Thurston D., Garver P., Beutler E. Comparison of magnetic resonance imaging and ultrasound in evaluating liver size in Gaucher patients // Acta Haematol. 1994. Vol. 92, № 4. P. 187—189. 16. Elstein D., Hadas-Halpern I., Azuri Y. et al. Accuracy of ultrasonography in assessing spleen and liver size in patients ...

• Kant and the Crusians in the Debate on Optimism

  ... Kant’s views on optimism from the mid- to the late-1750s, when this concept — once characteristic of the partly unacceptable position that G. W. Leibniz defended in the Theodicy — came to describe Kant’s own views. Leaving aside Voltaire’s resonating works on the Lisbon earthquake, the generic opponent to Kant’s position is an amalgam of Crusians (C. A. Crusius, A. F. Reinhard, D. Weymann, and others), reduced to a caricature with regards to certain theses. I address Weymann’s polemic ...

• The media image of San Escobar in the space of fictional worlds: a socio-semiotic perspective

  ... media-con­cept). Przegląd Rusycystyczny, 4 (156), pp. 118—131 (in Russ.). Bershidskiy, L., 2013. Moskva pokhozha na Mordor, Ukraina — na stranu hobbitov [Moscow is like Mordor, Ukraine is like a hobbit country]. Available at: https:// censor.net.ua/resonance/240801/moskva_pohoja_na_mordor_ukraina_na_stranu_ hobbitov [Accessed 19 August 2018] (in Russ.). Bochkareva, N., 2016. 4 strany, kotorye ne sushchestvujut [4 countries that do not exist]. Available at: http://fb.ru/post/destinations/2016/2/8/4077 ...