我们也知道振动能的配分函数。
对单个分子的配分函数本身也适用。
You can also look at the molecular partition function itself.
现在我们来计算分子的配分函数。
这里分子的配分函数用q标记。
现在qi是分子总配分函数。
系统的配分函数用Q标记。
能量相加,配分函数相乘。
If the energies add, then the partition functions multiply each other.
好,这就是分子配分函数。
接着我们计算配分函数。
这个求和叫做配分函数。
要把配分函数分解成,子系统的配分函数。
So it's the separation of the partition functions into subsystem partition functions.
我们可以把配分函数写成,对能级的求和。
We can write the partition function as a sum over energy level.
这是电子的配分函数。
我们的分子配分函数。
在构型配分函数中。
称为正则配分函数。
早分页空间分配策略预先分配分页空间。
不同自由度的能量要相加,相应的配分函数要相乘。
And whereas the energies of the degrees of freedom add up, the partition functions get multiplied.
上节课我们看到了如何,从正则配分函数导出,内能等量。
So last time, then, you saw how from the canonical partition function, you could get something like the energy.
匹配分为两大类:通用匹配和特定于协议的匹配。
The matches are divided in two major categories: generic matches and protocol-specific matches.
这就让我们开始思考,要怎么来表示亥姆霍兹自由能,用正则配分函数?
So it becomes interesting, then, to figure out, how can we write the Helmholtz free energy in terms of the canonical partition function?
那么现在我们就能写出,分子构型的配分函数,和系统的正则配分函数。
So now we can just write out the configurational partition function for the molecules and also the canonical partition function for the system.
定义一个新的分区集,这需要指定名称、分配分区和为分区分配角色,见图35。
Define a new partition set by specifying a name, assigning partitions, and assigning roles to the partitions, as shown in Figure 35.
在高温极限下,不同自由度的配分函数会有不同,这依赖于他们具体能级结构。
What'll happen in the high temperature limit might vary, depending on the structure of the energy levels.
换句话说,如果我得到了Q的表达式,知道了配分函数,我可以计算它在任意温度下的数值。
In other words, if I have an expression for Q, I know the partition function, and I can calculate it at any temperature.
如果我们能计算分子的配分函数,而分子反应处于平衡状态,我们应该能够计算出平衡常数。
If we can calculate the partition functions for molecules, and they undergo reactions and they're in equilibrium, we should be able to calculate the equilibrium constants.
在默认情况下,当调用malloc时并不分配分页空间,而是到引用它时才分配。
By default, when malloc is called, no paging space is assigned until it is referenced.
换句话说,如果所有的原子都不相同,那么我就可以标记它们,就不需要修正配分函数。
In other words, if I had all different atoms, so I could label them all, then I don't have that correction.
要使分析人员和开发人员之间能够协作,可执行过程语言就必须足够灵活完全匹配分析图。
To make that collaboration work between analysts and developers, the executable process language must be flexible enough to fit right onto the analysis diagram.
通过这种策略,收集器可以在远程运行,同时还可以重新装配分布于不同大陆的多个服务器上的事务。
Through this strategy, the collectors are able to run in remote locations and still reassemble a transaction that might span several servers across different continents.
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