查询词典 momentum

Contents: A Brief Review of Elementary Quantum Chemistry; An Introduction to Electronic Structure Theory; The Born-Oppenheimer Approximation; Time Evolution of Wavefunctions; Angular Momentum Summary; The Unitary Group Form of the Hamiltonian; Introduction to Hartree-Fock Theory; Permutational Symmetries of Integrals; Notes on Excited Electronic States; The Quantum Harmonic Oscillator; Assigning Symmetries of Vibrational Modes; Notes on Elementary Linear Algebra

内容： 初等量子化学的简评；电子结构理论的介绍；天生奥本海默的接近； Wavefunctions的时间演化；角动量摘要； Hamiltonian的单位的组形式；哈特里-Fock 理论的介绍；积分的Permutational对称性；在令人激动的电子国家上注明；这台量谐波振荡器；分配振动的方式的对称性；在初等线性代数上注明

The perturbation theory is used with a cut off in the region of large momentum.

在计算时应用了微扰论，并在大动量处将相互作用截断。

Therefore, photoelectric conversion efficiency of the current restrictions on the amount of solar energy use for electric cars, solar energy directly, as if the momentum will lead to a solar panel the size is too large, inconvenient to install, plus the cost of Too high, its usefulness would be greatly reduced.

由此可以看出，光电转换效率限制了目前对太阳能量的利用，对于电动车来说，若直接以太阳能作为动力，将导致太阳能电池板的面积过大，安装不方便，再加上成本过高，其实用性将大大降低。

The energy-momentum tensor of gravitational field is a very important physical quantity.

引力场的能动张量是引力理论中一个极为重要的物理量。

The difference, in pips between the two, measures relative momentum of the market in real time.

区别就是，二者之间的点差，标志着市场实时的相对动量。

It can be shown that the wavelength is equal to h/p, where h is Planck's constant and p is the momentum of the eigenstate.

波长可以表示为h/p，这里h 是普朗克常数而p是特征态动量。

According to the uncertainty principle, the mathematical product of the combined uncertainties of simultaneous measurements of position and momentum in a given direction cannot be less than Planck's constant h divided by 4π.

根据不确定性原理，同时测量位置和给定方向的动量时，合成不确定度之积，不能小于普朗克常数除以4π。

1 Pan Pearl River Delta Physics Olympiad 2009 2009 年泛珠三角及中华名校物理竞赛 Q2 Spin Torque (16 points)题 2 自旋力矩(16 分) An electron has permanent angular momentum called spin that is fixed in amplitude h / 4π, where h is the Planck Constant, while its direction can be changed by external interactions.

电子具有固有的角动量 S ，叫做自旋，其方向可在与外界的相互作用下改变，其大小为固定的 h / 4π，其中 h 为普朗克常数。一导线载有电流 I，导线的下半部分由磁化了的导体组成，上半部分由非磁性导体组成。

An eigenstate of momentum, on the other hand, has the form of a plane wave.

在其它方面一个动量特征态具有一平面波形。

And if the current slowdown in growth momentum to continue, this year will be almost 10 years to maintain the rapid growth of household savings of the inflection point.

如果目前的经济增长放慢的势头继续下去，今年将是近10年保持快速增长，居民储蓄的拐点。

Objective To explore the effect of hepatic growth factor on the neuronal differentiation of the neural stem cells.

目的 观察肝细胞生长因子对神经干细胞向神经元细胞方向分化的作用。

Viridian has assembled one of the best creative teams in Hollywood.

维瑞点这次聚集好莱坞最赋创造力的团队。