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71.
72.
V. G. Baryakhtar O. Yu. Gorobets V. Yu. Gorobets 《Journal of magnetism and magnetic materials》2004,280(2-3):377-380
Some exact dynamic and static solutions of Landau–Lifshitz equations in antiferromagnets and ferromagnets found in this work. These solutions can be used for describing distribution of order parameter in small magnetic particles. 相似文献
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74.
A perturbation theory is developed for the integrodifferential Landau-Lifshits equation that describes the state of 2π-domain walls in ferromagnetic films. The static and dynamic parameters of a 2π-domain wall are determined, taking into account its micromagnetic structure. The limits of applicability of geometric domain
wall models are indicated.
Fiz. Tverd. Tela (St. Petersburg) 40, 269–273 (February 1998) 相似文献
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77.
P. B. Bogdanov A. V. Gorobets S. A. Sukov 《Computational Mathematics and Mathematical Physics》2013,53(8):1183-1194
The design of efficient algorithms for large-scale gas dynamics computations with hybrid (heterogeneous) computing systems whose high performance relies on massively parallel accelerators is addressed. A high-order accurate finite volume algorithm with polynomial reconstruction on unstructured hybrid meshes is used to compute compressible gas flows in domains of complex geometry. The basic operations of the algorithm are implemented in detail for massively parallel accelerators, including AMD and NVIDIA graphics processing units (GPUs). Major optimization approaches and a computation transfer technique are covered. The underlying programming tool is the Open Computing Language (OpenCL) standard, which performs on accelerators of various architectures, both existing and emerging. 相似文献
78.
Shckorbatov YG Shakhbazov VG Navrotskaya VV Grabina VA Sirenko SP Fisun AI Gorobets NN Kiyko VI 《Electrophoresis》2002,23(13):2074-2079
Intracellular microelectrophoresis was applied to investigate the electrokinetic properties of human buccal epithelium cell nuclei after exposure of cells to microwaves of wavelengths of 8 mm (f = 37.5 GHz) and 16 mm (f = 18.75 GHz) at a surface power density of 0.2 mW/cm(2). Irradiated or nonirradiated cells were suspended in a flat microelectrophoretic chamber and exposed to an electric field of 15 V/cm at a current flow of 0.1 mA. The cells, whose nuclei altered their intracellular location towards the anode of the externally applied electric field, were considered to have negatively charged nuclei. The percentage of cells with electrophoretically movable nuclei was determined as the value of electronegativity of cell nuclei (ENN). Microwaves induced changes of ENN during irradiation of 15-60 s. If cells of a donor had an elevated initial level of ENN, it decreased during irradiation. On the contrary, if cells of another donor had a low initial ENN level, irradiation induced ENN increase. No significant difference between the action of microwaves of wavelengths of 8 mm and 16 mm was found. However, microwave irradiation caused an increase in membrane permeability for the in vivo dye indigo Carmine in cells of all donors irrespectively of the initial levels they showed. This suggests that electrokinetic properties of nuclei in cells do not only depend on cell membrane permeability. 相似文献
79.
The reflection coefficient of bulk spin waves from a ferromagnetic multilayer with periodically modulated parameters of the
exchange interaction, the uniaxial magnetic anisotropy and the saturation magnetization (a magnonic crystal) is calculated.
The dependence of the reflection coefficient upon the spin wave frequency and the values of the bias magnetic field, the parameter
of interfacial coupling, and the internal structure of the unit cell are investigated.
相似文献
80.
F. A. Valeev E. V. Gorobets I. P. Tsypysheva G. Sh. Singizova L. Kh. Kalimullina M. G. Safarov O. V. Shitikova M. S. Miftakhov 《Chemistry of Natural Compounds》2003,39(6):563-568
Regiospecific C55 -halogenation with retention of configuration occurred upon Beckman fragmentation of levoglucosenone oxime using SOCl2 or PBr3. On the other hand, the oxime of its dihydro derivative gave under these conditions the C6 - substitution product. A stereoselective synthetic scheme for (+)--pelargonolactone, an attractant for the rice and corn weevils Sitophiltus zeamais, was developed from the fragmentation product of levoglucosenone oxime. 相似文献