电荷密度

The charge difference density shows that all the holes are localized on the Ru and the electrons on the ammine. The localization explains the MLCT on excitation.

第二，电荷差异密度揭示了所有的空穴都在Ru上，所有的电子都在ammine上。

By density functional theory B3LYP method with 6-31G basis set, the geometry and electronic structure of the natural inhibitor and derivatives of Adenylosuccinate synthetase were optimized and their thermodynamic stability was also analyzed. The relationship between their electronic structures and bioactivities were discussed based on the Mulliken bond order, atomic net charge distribution and molecular surface electrostatic potential.

利用密度泛函B3LYP方法选择6-31G基组对腺苷酸琥珀酸合成酶天然抑制剂及其衍生物的结构进行优化，并对其稳定性进行了分析，同时采用Mulliken键序、原子电荷分布、表观静电势等对AdSS抑制剂及其衍生物电子结构与其生物活性相关性进行了理论研究。

We have discussed the changes of spin density and atomic charge on B-site as the crystal parameters are individually expanded or compressed from 0.02% to 0.2%(and, from 0.5%~5.5%).

单晶格及双晶格的计算中，虽然随著晶格膨胀或压缩的维度的增加，Mn中的电子自旋密度和原子电荷的变化均趋缓，但整体而言电子自旋密度仍然受到晶格参数的高度影响。

Moreover for derivatives of benzimidazole, density functional theory method calculations of the structure, atomic charge distributions and electronicspectra have been performed at B3LYP/6-311G*~* level. The results of the calculationshave been compared with experimental data and they are found to support each other,which provide useful information for the further study on derivatives ofbenzimidazole.

并运用密度泛函理论在B3LYP／6-311G~**料水平上，对化合物的优化几何、原子电荷分布及转移、电子光谱以及及在不同温度下的热力学性质进行了计算，从而为苯并咪唑类化合物的进一步研究提供了有价值的参考和理论数据。

According to Biot-Savart law, the magnetic induction at the diameter position of the spin axis is calculated. Furthermore, using the internal and external radius of the Earth's outer core as well as the radius of the Earth and the magnetic induction at the Earth's magnetic pole, the volume charge density and surface charge density of the Earth's outer core have been obtained.

先根据毕奥-萨伐尔定律计算球形模型绕自转轴旋转时在自转轴直径上产生的磁感应强度；再利用已知的地球外核的内外半径及地球半径和磁极处的磁感应强度值，计算出地球外核的电荷体密度及面密度。

Electromagnetics course mainly including basic phenomena and laws of electro- magnetics, electrostatic field in vacuum, in conductor and in electric medium, electric energy, stabilized current, stabilized magnetic field and its basic laws, electric and magnetic fields caused by a moving chager in lower speed, the transform of electric and magnetic fields between different systems of coordinates, inductive laws, eddy field, self inductance, mutual inductance and transient, molecule current and magnetic substance, ferromagnet, boundary conditions, magnetic circuit theorem, energy of magnetic field and density of magnetic energy, displacement current, Maxwell's equation, electromagnetic wave, Poynting vector.

电磁学课程的主要内容包括：静电的基本现象和基本定律，真空中的静电场，导体和电介质中的静电场，电场的能量与电场能量密度，稳恒电流，稳恒电流磁场的基本定律，运动电荷的电磁场，不同参照系之间电磁场的变换，电磁感应定律，涡旋电场，互感，自感，暂态过程，分子电流与磁介质，铁磁体，边界条件，磁路定理，磁场的能量和磁能密度，位移电流， Maxwell 方程组，电磁波和玻印廷矢量等。

Udana is the least dense of the pranas ,then comes prana ,samana ,and apana .vyana ,which flows over the whole body ,has a density which is the average of all the others .the different colors of the pranic or bioplasmic clouds are due to the emission of photons when electrons change their energy levels from higher to lower frequencies .

按能量的密度从小到大，依次是UDANA，PRANA ，SAMANA和APANA。在全身密布的是密度居中的VYANA。当电荷改变了他们的能量从高到低的水平的时候，他们的颜色、以及存在的空间，向外扩散的方式也随之改变。

The content of impregnated Ba, Ca aluminates in the bodies can meet the requirements of the conventional impregnated cathode. Emission experiment results show that the space charge limited current density of this kind of cathode has reached more than 30A/cm^2 at 850℃.

发射试验结果表明，这种阴极在850℃的工作温度下空间电荷限制的电流密度超过30A/平方公分，在超过2000h的寿命实验过程中发射仍持续上升，因而在要求高电流密度和一定寿命的微波电子管中具有光明的应用前景。

Based on density functional theory and electronegativity equalization principle,applying an atom-bond electronegativity equalization σπ model,using a separated program,we calculated the charge distributions and dipole moments of guanine tautomers.

以密度泛函和电负性均衡原理为基础发展的原子-键电负性均衡方法的σπ模型。并结合自编程序，计算了鸟嘌呤五种异构体的电荷分布和偶极矩，计算结果表明，所计算出的电荷分布可以和从头算结果很好地关联。所计算的偶极矩与其它从头计算方法和力场方法相比总体趋势相同，进一步说明了ABEEMσπ模型的合理性

It was clear that the Cherenkov radiation is result of the coupling between the slow TM mode propagated along the waveguide and the negative-energy space-charge mode propagated along the beam, and the coupling strength is proportional to the beam density.

分析结果表明：切伦科夫辐射是由沿介质同轴波导传播的慢波与沿薄环形相对论电子注传播的负能空间电荷波耦合所致，且其耦合强度与电子注的密度成正比；输出频率和波增长率随着填充等离子体密度的增大而提高；保持一定的输出频率，增大电子注的束流可得到高的微波输出功率。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。