There are no formulas with negative permeability in classical textbooks of electromagnetism.
在目前的有关电磁理论的教科书中，没有这方面现成的公式。
Compared with regular material, it has some unusual parameters value, simultaneously negative permeability and permittivity.
与常规材料相反，它具有同时为负的介电常数和磁导率，进而具有负的折射系数。
In recent years, a complicated artificial material with negative permittivity and negative permeability has attracted much attention theoretically and experimentally.
最近几年，一种具有负介电常数和负磁导率的人工复合材料在理论与实验上引起了广泛关注。
Based on the analysis of the negative permeability properties of double split-ring-resonator array (SRRA), a simplified structure called single SRRA was proposed and demonstrated.
对双金属环阵列结构产生负磁导率的机理进行了分析，在此基础上，尝试采用单金属环阵列结构来构造负磁导率材料。
The resonance and tunneling problem of pairing conjugate structure consisting of negative permittivity and negative permeability materials were studied by using transfer matrix methods.
利用转移矩阵方法，研究了负介电常数材料和负磁导率材料组成的双层共轭结构的共振隧穿问题。
This makes achieving negative permeability under extremely low frequency as well as the permeability switching between positive and negative value rapidly through a magnetic field pulse into possible.
这使实现极低频的负磁导率以及通过磁场脉冲实现磁导率在正负之间快速跳变成为可能。
Nevertheless, the unique properties of Hemcrete - thermal mass, carbon negative, air permeability, etc - made it the first choice for the external envelope.
尽管如此，Hemcrete的独特属性——热容量、碳负极、空气可渗透性等等——使得它成为外部围护结构的首选。
By nonlinear regression analysis the change law is found that with the increase of geostress the permeability coefficient will decrease with negative exponential trend.
然后通过回归分析，可以发现该地区渗透系数随地应力值的增大呈负指数递减的变化规律。
Negative refractive index materials are artificial materials with permittivity and permeability both negative within certain microwave frequency band.
负折射率媒质是一种人造媒质，在某一微波波段内其介电常数和磁导率同时为负值。
Negative refractive material is an important and new-style artificial and composite material, in which permittivity and permeability are simultaneously negative.
负折射率材料是一种重要的新型人工合成材料，其主要特征是介电常数和磁导率都小于零。
There was a negative correlation between the disease resistance of cultivars and the permeability of cell membrane.
品种抗病性与细胞膜透性变化呈负相关。
However, as for the dissipative loss medium with only one of permittivity and permeability being negative, the TM or TE polarization incident wave has a negative Goos-Hanchen shift accordingly.
而对于下半空间为带消散损耗的单负光疏介质时，仅TM波或TE波之一的古斯—汉森位移是负的。
Negative Refractive Index Materials (NRIM) is a kind of substance with negative permittivity and permeability simultaneously.
负折射率媒质是一种人造媒质，在某一微波波段内其介电常数和磁导率同时为负值。
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