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如果我们计算气体混合过程中熵的变化,我们会发现这个量是正的。
If we calculate the change in entropy during gas mixing, we will find that this quantity is positive.
youdao
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现在的研究采用了复杂性分析中的样品熵算法。
The present study is to investigate the application of sample entropy (SampEn) measures.
youdao
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提出了基于最大互信息熵且具有奇数约束的优化得分函数。
A score function for optimization based on maximum mutual information entropy with odditional restriction is proposed.
youdao
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所以混合中的熵是非常重要的。
So entropy of mixing is really super important.
youdao
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那就是,熵的项,当然,仍然存在。
That is, the entropy term, of course, is still there.
youdao
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如果你改变温度,熵也会变化。
If you change the temperature entropy changes and so on.
youdao
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这些的基本原因都是熵的混合。
And it's all driven by entropy of mixing.
youdao
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所有这些都是由混合熵引起的。
All driven by entropy of mixing.
youdao
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它们在你们关于熵的笔记中。
They're in your notes for entropy.
youdao
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你有一块晶体,它的熵很低。
You have a crystal, entropy's very small.
youdao
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但是当然,熵使,它们混合。
But of course, entropy is going to want them to mix.
youdao
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这样我们能更明确地,计算混合后的熵。
So we can just explicitly calculate the entropy of mixing.
youdao
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没有混合熵,我们得到的就是这条曲线。
Without entropy of mixing, we would be sitting on this curve here.
youdao
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如果没有混合熵,那么就是从这里开始。
If entropy of mixing wasn't there, I would start from up here.
youdao
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魔幻词汇是什么?混合熵。
What's the magic word? Entropy of mixing, right.
youdao
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那就是我们混合物的熵。
So that's our entropy of mixing.
youdao
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熵是指物体失序的趋势。
Entropy is the tendency of things to disorder.
youdao
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不过那跟熵有什么关系?
But what has that to do with entropy?
youdao
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只从熵的项,你会使细胞爆裂或无论做什么。
Just from the entropy term you would burst the cell or do whatever.
youdao
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没有混合熵的话,所有的东西都会变成产物。
Without entropy of mixing, then everything would go directly to the products.
youdao
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这样是我们初始的熵。
So that's our initial entropy.
youdao
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这就是熵和时间之箭。
That's entropy and the arrow of time.
youdao
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继续得到宏观的熵变。
And continue to derive the macroscopic entropy changes.
youdao
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但是熵也会起作用。
But entropy also matters.
youdao
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是的,是熵,对吗?
Yeah, it's entropy, right?
youdao
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对,熵!熵起了什么作用?
Yeah. What about entropy, right?
youdao
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都是由熵驱动的。
And it's all driven by entropy.
youdao
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我们知道它是由熵驱动的。
And we know it's entropically driven.
youdao
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同样的,它仍是熵驱动的。
And again, it's still entropically driven.
youdao
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同样的,它仍是熵驱动的。
And again, it's still entropically driven.
youdao