1) effective permeability
等效磁导率
1.
The effective permeability and permittivity tensors are calculated,the dispersive curv.
分析得到了等效磁导率和等效介电常数张量,做出了色散曲线,获得了负折射率条件。
2.
The results show that the effective permittivity and effective permeability of the composite medium are negative simultaneously in C-band frequency region, and therefore ind.
利用有效媒质理论数值计算了复合媒质的等效介电常数与等效磁导率的频率响应特性。
2) equivalent permeability
等效磁导率
1.
It is pointed out that the equivalent permeability and permittivity of honeycomb-structured absorbing materials are smaller than those of the absorbing layer,but the equivalent permittivity is reduced more significantly,so the equivalent permeability is more close to the equivalent permittivity.
根据强扰动理论,在长波长近似条件下推导出蜂窝结构吸波材料等效介电常数和等效磁导率的计算公式。
3) equivalent susceptibility
等效磁导率
1.
In this paper, according to the law of electromagnetic induction, the device measuring the equivalent susceptibility of metals was designed, which can real-time measure the change of the equivalent susceptibility of liquid metals during the cooling process.
根据电磁感应的基本原理,设计了可连续实时测量液态金属在降温过程中等效磁导率随温度变化的金属等效磁导率测量仪。
4) negative magnetic permeability
负等效磁导率
5) equivalent susceptibility
等效磁化率
1.
When the integral equition method is applied to calculate the inductive magnetic field of the main deck model of a vessel, we use equivalent susceptibility to make the steel divisions under the deck into several solid steel units, so that the computation elements will be reduced and computing speed will be raised.
利用积分方程法计算舰船主甲板模型的感应磁场时,将甲板下的钢质网格部分应用等效磁化率的概念使其化解成为数不多的钢质实心体单元,从而使计算时剖分单元大为减少,计算速度提高。
2.
In this paper during computation of the inductive magnetic field of the superstructure model of ships, the equivalent susceptibility is studied.
研究了感应磁场计算中的等效磁化率的概念。
6) effective thermal conductivity
等效热导率
1.
Based upon the minimum thermal resistance law and the law of ratio effective thermal conductivity, the formulae that could be applied to calculate the effective thermal conductivity of thermal barrier ceramic/metal composites are presented.
等效热导率是热障功能梯度材料的重要热物理性能 ,本文采用最小热阻力法则和比等效导热系数相等法则 ,推导出了热障型陶瓷 /金属复合材料等效热导系数的普通式。
2.
Based on the Boltzmann transport theory and lattice Boltzmann methods,the characteristics of heat transport properties and the effective thermal conductivity of 1-3 composite material were investigated.
首先给出了计算热传导问题的格子玻尔兹曼法二维九速度不可压缩热模型以及边界条件(恒温、绝热)的处理方式,并在此基础上探讨了圆形、椭圆形、矩形和随机夹杂的1-3型复合材料的传热特征和等效热导率等,展示了给定时刻下,结构上的温度分布特征以及结构上某点温度随时间的变化特征等。
补充资料:磁导率
磁导率 magnetic permeability 表征磁介质磁性的物理量。常用符号μ表示,等于磁介质中磁感应强度B与磁场强度H之比,即 通常使用的是磁介质的相对磁导率μr ,其定义为磁导率μ与真空磁导率μ0之比,即 相对磁导率μ与磁化率χ的关系是 磁导率μ,相对磁导率μr和磁化率xm都是描述磁介质磁性的物理量。 对于顺磁质μr>1;对于抗磁质μr<1,但两者的μr都与1相差无几 。在铁磁质中,B与 H 的关系是非线性的磁滞回线,μr不是常量,与H有关,其数值远大于1。 在国际单位制(SI)中,相对磁导率μr是无量纲的纯数,磁导率μ的单位是亨利/米(H/m)。 |
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