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Modifying factor for determining broadband complex permeability of magnetic thin films DU Gang(杜 刚), JIANG Jian-jun(江建军), YUAN Lin(袁 林), BIE Shao-wei(别少伟), MA Qiang(马 强), TIAN...; accepted 10 September 2007 Abstract: A new method of the modifying factor for determining the broadband complex permeability of magnetic thin films, was proposed. Based on the measurement technology of shot......
. A novel phenomenon is discovered that the complex permittivity, complex permeability and electromagnetic loss tangent have suddenly a step change at a certain frequency and the step-change frequency... overcome higher energy barrier when the frequency of incident microwave reaches a certain value. Key words: microwave absorption material; complex permittivity; complex permeability; rare-earth Mn oxide......
J. Cent. South Univ. Technol. (2011) 18: 1299-1303 DOI: 10.1007/s11771-011-0836-x Effect of absorption boundary layer on nonlinear flow in low permeability porous media WANG Xue-wu(王学武)1, 2, YANG... China Exploration and Development Research Institute, Langfang 065007, China ? Central South University Press and Springer-Verlag Berlin Heidelberg 2011 Abstract: Taking low permeability cores......
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and micromagnetic ripple structure can be suppressed by the annealing process. Thus, the microwave complex permeability spectra of these nano-magnetic films can be tailored for different applications. Key words... configuration. Damping factor was set to be 0.02 in the permeability calculation of nano-granular films. The microwave complex permeability of the nano-granular film with granular diameter of 15 nm......
-low permeability sandstone reservoir; Ordos basin 1 Introduction Microscopic waterflooding characteristic is important in the process of oilfield development, as the complex microscopic geological...J. Cent. South Univ. (2017) 24: 2134-2144 DOI: https://doi.org/10.1007/s11771-017-3622-6 Determination of microscopic waterflooding characteristics and influence factors in ultra-low permeability......
research of permeability evolution of rock under complex stress state was the study on coupling characteristics of seepage and stress in rock. Based on the review of current research achievements, three...J. Cent. South Univ. (2012) 19: 252-261 DOI: 10.1007/s11771-012-0999-0 Creep properties and permeability evolution in triaxial rheological tests of hard rock in dam foundation XU Wei-ya(徐卫亚)1, WANG......
J. Cent. South Univ. (2017) 24: 2396-2405 DOI: https://doi.org/10.1007/s11771-017-3651-1 Stress dependent permeability and porosity of low-permeability rock JIA Chao-jun(贾朝军)1, 2, XU Wei-ya(徐卫亚)1... and Springer-Verlag GmbH Germany 2017 Abstract: The seepage property of low-permeability rock is of significant importance for the design and safety analysis of underground cavities. By using a self-developed......
improves from 0.25 to 2.22 Ω?m. The resonant frequency locates at the point higher than 2 GHz and the imaginary part of complex permeability at 2 GHz is larger than 150. These multilayer films can... into electrically isolated regions[1-2]. The frequency-response of complex permeability for Fe46Co44B10 films is essentially affected by the film thickness. Large value of imaginary part of complex......
Complex permittivity, permeability, and microwave absorption of barium ferrite by citrate sol-gel processZHANG Haijun WU Mingzhong YAOXi and ZHANG Liangying1) High Temperature ceramics Institute... and complex permeability of hexaferrite-paraffin wax composites had been measured by the transmission/reflection coaxial line method in the range from 200 MHz to 6 GHz. The measurement results showed......
