Zobrazeno 1 - 10
of 120
pro vyhledávání: '"G. A. Vasneva"'
Publikováno v:
Springer Series in Geomechanics and Geoengineering ISBN: 9789811075599
Modern state of main oil fields all over the world is characterized by passage to finishing stage of exploitation with getting worse as structure and quality of oil reservoirs. Under these conditions, the intensification of oil recovery process for t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::565246997eddd9742a0c55e9560f274c
https://doi.org/10.1007/978-981-10-7560-5_83
https://doi.org/10.1007/978-981-10-7560-5_83
Autor:
G. A. Vasneva, V. A. Atsarkin, R. L. Belford, V. V. Demidov, B. M. Odintsov, Robert B. Clarkson
Publikováno v:
Applied Magnetic Resonance. 29:267-276
The original technique with the use of longitudinal electron paramagnetic resonance detection was applied to measure longitudinal and transversal electron relaxation times (T 1 andT 2) in specially prepared carbon chars containing paramagnetic center
Publikováno v:
Applied Magnetic Resonance. 21:147-156
With original modulation technique, the longitudinal electron spin-relaxation timeT 1 has been measured in the La1-xCaxMnO3 manganite (x = 0.1) both in the paramagnetic state and around the temperature (T c) of the ferromagnetic ordering. The data ar
Autor:
B. M. Odintsov, G. A. Vasneva, V. A. Atsarkin, R. L. Belford, Robert B. Clarkson, and B. Radüchel, V. V. Demidov
Publikováno v:
The Journal of Physical Chemistry A. 105:9323-9327
A modulation technique for direct measurement of extremely fast electron spin−lattice relaxation is described. The method is based on longitudinal magnetization detection. It is applied here to study the spin−lattice relaxation times T1e in aqueo
Autor:
G. A. Vasneva, V. V. Demidov, F. S. Dzheparov, B. M. Odintsov, Robert B. Clarkson, P.J. Ceroke, V. A. Atsarkin
Publikováno v:
Journal of Magnetic Resonance. 149:85-89
The mechanism of oxygen response in several newly synthesized oxygen-sensitive chars was studied with the use of EPR spectroscopy. The results suggest that the compounds contain two basic types of paramagnetic centers (PC). The change in oxygen conce
Autor:
F. S. Dzheparov, B. M. Odintsov, V. A. Atsarkin, G. A. Vasneva, V. V. Demidov, R. B. Clarkson
Publikováno v:
Journal of Experimental and Theoretical Physics Letters. 72:369-372
Experiments with char samples provide support for the theory of EPR line shape in a system of surface paramagnetic centers with dipole-dipole interactions. It is also demonstrated that, if a strong Heisenberg exchange dominates over the dipole-dipole
Publikováno v:
Applied Magnetic Resonance. 19:329-337
With an original modulation technique, the Gd3+ electron spin-lattice relaxation has been investigated in normal and superconducting states of YBa2Cu3O6+x (123) and YBa2Cu4O8 (124) compounds doped with 1% Gd. In the 123 sample withx = 0.9T c = 90 K),
Electron spin-lattice relaxation rate inY(Gd)Ba2Cu4O8:Evidence ford-wave pairing in high-Tcmaterials
Publikováno v:
Physical Review B. 61:R14944-R14947
Using an original modulation technique, the longitudinal (spin-lattice) relaxation of the impurity ${\mathrm{Gd}}^{3+}$ ions has been investigated in the superconducting state of ${\mathrm{Y}}_{0.99}{\mathrm{Gd}}_{0.01}{\mathrm{Ba}}_{2}{\mathrm{Cu}}_
Publikováno v:
Applied Magnetic Resonance. 15:323-331
Using an original modulation technique, the electron spin-lattice relaxation have been investigated in two noncommon metals: YBa2Cu3Ox, high-Tc material doped with 1% Gd, and Rb1C60, linear polymer phase fulleride. In the first case, the Korringa-lik
Publikováno v:
Physical Review B. 56:9448-9453