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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Nesterov A. I., de la Cruz F. A.
Заглавие : Magnetic monopoles with generalized quantization condition
Место публикации : Phys. Lett. A. - 2002. - Vol. 302, Is. 5-6. - P.253-260. - ISSN 0375-9601, DOI 10.1016/S0375-9601(02)01172-6
Примечания : Cited References: 33
Предметные рубрики: QUANTUM-MECHANICS
DIRAC MONOPOLE
3-COCYCLE
SPACE
Ключевые слова (''Своб.индексиров.''): monopole--nonunitary representations--nonassociativity--gauge loop--quasigroups--gauge loop--monopole--nonassociativity--nonunitary representations--quasigroups--article--calculation--magnetic field--mathematics--quantum mechanics--rotation--theory
Аннотация: Theory of pointlike magnetic monopole with an arbitrary magnetic charge is considered. It is shown that a proper description requires making use of nonunitary representations of the rotation group and the nonassociative generalization of the gauge group and fibre bundle theory. (C) 2002 Elsevier Science B.V. All rights reserved.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Wigneron J. P., Chanzy A., Kerr Y. H., Lawrence H., Shi J. C., Escorihuela M. J., Mironov V. L., Mialon A., Demontoux F., de Rosnay P., Saleh-Contell K.
Заглавие : Evaluating an improved parameterization of the soil emission in L-MEB
Коллективы : Workshop on Remote Sensing and Modeling of Surface Properties (2nd; Jun 09-11, 2009; Toulouse, France)
Место публикации : IEEE Trans. Geosci. Remote Sensing: IEEE-Institute Electrical and Electronics Engineers, 2011. - Vol. 49, Is. 4. - P.1177-1189. - ISSN 0196-2892, DOI 10.1109/TGRS.2010.2075935
Примечания : Cited References: 26
Предметные рубрики: BAND MICROWAVE EMISSION
SURFACE-ROUGHNESS
1.4 GHZ
MODEL
MOISTURE
LAND
RADIOMETER
FREQUENCY
FIELDS
SPACE
Ключевые слова (''Своб.индексиров.''): microwave remote sensing--radiometry--roughness--soil moisture (sm)--soil moisture and ocean salinity (smos)--soil surface
Аннотация: In the forward model [L-band microwave emission of the biosphere (L-MEB)] used in the Soil Moisture and Ocean Salinity level-2 retrieval algorithm, modeling of the roughness effects is based on a simple semiempirical approach using three main "roughness" model parameters: H-R, Q(R), and N-R. In many studies, the two parameters Q(R) and N-R are set to zero. However, recent results in the literature showed that this is too approximate to accurately simulate the microwave emission of the rough soil surfaces at L-band. To investigate this, a reanalysis of the PORTOS-93 data set was carried out in this paper, considering a large range of roughness conditions. First, the results confirmed that Q(R) could be set to zero. Second, a refinement of the L-MEB soil model, considering values of N-R for both polarizations (namely, N-RV and N-RH), improved the model accuracy. Furthermore, simple calibrations relating the retrieved values of the roughness model parameters H-R and (N-RH - N-RV) to the standard deviation of the surface height were developed. This new calibration of L-MEB provided a good accuracy (better than 5 K) over a large range of soil roughness and moisture conditions of the PORTOS-93 data set. Conversely, the calibrations of the roughness effects based on the Choudhury approach, which is still widely used, provided unrealistic values of surface emissivities for medium or large roughness conditions.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pervushin V. N., Arbuzov A. B., Barbashov B. M., Nazmitdinov R. G., Borowiec A., Pichugin K. N., Zakharov A. F.
Заглавие : The general relativity with conformal units
Место публикации : Phys. Part. Nuclei: MAIK Nauka-Interperiodica / Springer, 2012. - Vol. 43, Is. 5. - P.682-688. - ISSN 1063-7796, DOI 10.1134/S1063779612050310
Примечания : Cited References: 42. - The authors would like thank M. Bordag, S. Deser, D. Ebert, A. Efremov, V. Gershun, Yu. Ignatev, E. Lukierski, and A. Zheltukhin for useful discussions. VNP and AB were supported in part by the Bogoliubov-Infeld program. AFZ is grateful to the JINR Directorate for a support.
Предметные рубрики: ACCELERATING UNIVERSE
COSMOLOGICAL CONSTANT
SUPERNOVA
SPACE
DECELERATION
GRAVITY
Аннотация: General Relativity rewritten in conformal units identifies conformal intervals with the real observational distances. This identification gives a base to explain all epochs of the Universe evolution including Ia supernova luminosity long distance-redshift relation by the dominance of the Casimir vacuum energy of all physical fields. A set of arguments is discussed in favor that SNe Ia data in the conformal units can be an evidence of the conformal twistor structure of the space-time as a nonlinear realization of the affine group, like the nonlinear realization of chiral symmetry and phenomenological Lagrangian is evidence of the quark structure of hadrons.
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