So, you do this measurement, you measure with the gas, you measure the pressure and the molar volume.
现在让压强趋于,现在测量气体的压强,和摩尔体积。
And, so the experiment was to bombard the foil with these alpha particles, and that measure what happens to them.
因此用这些阿尔法粒子,去轰击金箔,将会发生什么事情呢。
Also, we need to know how much individual stocks are correlated with rm; we measure that by the regression coefficient.
我们必须清楚,有多少个股与市场总体收益率相关;,我们用回归系数,即β系数来表示。
And then we're going to turn to the question of efficiency. How do we measure efficiency of algorithms? Which is going to be a really important thing that we want to deal with, and we'll start it today, it's undoubtedly going to take us a couple more lectures to finish it off.
然后我们会回头继续讨论效率问题,我们如何计算算法的效率?,我们处理这些问题的时候,最重要的事情是什么?,我们今天要去讨论这个问题,毫无疑问我们要用,挺多节课来学习这个。
I don't want to have to deal with heat escaping to the outside environment in a way that might be difficult or complicated to measure or calculate.
我可不想处理跑到,环境中去的热量,那测量或,计算起来会非常麻烦和复杂。
But it's a very interesting topic, so today we're going to talk about how do you measure what people eat, and you're having some experience that yourself with the daily plate dietary assessment.
这个话题实在有趣,所以今天我们要讲如何评估人们吃的东西,你们就能学到一些知识,来做自己的日常的饮食分析
Okay. For those who have not seen a radian, it's just another way to measure angle with the understanding that a full circle, which we used to think is 360 degrees, So a radian is roughly 60 degrees.
我想告诉那些还不懂弧度制的同学,这是衡量角度的另一种方法,理解起来是这样的,对于一个整圆,也就是我们之前所说的360°,所以1弧度大约是60°
Now these quantities were useful because you could relate them. The slope of changes, with respect to volume or temperature of the energy with respect to quantities that you understood, that you could measure.
去得到这些量,这些量很有用,而且你们已经知道了,怎么把它们相互联系起来,像这种比例形式的量,能量比上温度或体,或其它你们懂的可以测量量。
So I would choose something that have a wave lines off You wouldn't measure the dimension of a human hair with a yardstick, so I need something on this order.
所以我会选些东西,你将不会用一个码尺去量,人的头发有多大,所以我需要一些这个级数上的东西。
This is real, unlike the Joule coefficient which is very small so that most gases have tiny Joule coefficients. So if you do a Joule experiment, you hardly measure a temperature change. With real gases, here you do actually measure it. You can feel it with your finger on your bicycle tire.
系数那样小以至于,大多数气体的焦耳系数,都很小,所以如果你做焦耳实验,很难测量出温度的变化,对于真实气体,你可以测量它,你能通过手指按在,自行车轮胎上来感觉到它。
My favorite way to measure the results is actually to compare what Yale achieved with what we would have had if we would have just experienced average returns over the past twenty years.
在衡量成绩时,我喜欢的做法是,将过去20年耶鲁模式下获得的资产,与市场平均收益率计算的资产,进行比较
We'll come back to this, but beta of the stock is a measure of how much it moves with the market and the alpha of a stock is how much it outperforms the market.
回到原先的话题,beta用以衡量,本公司跟随市场变化的程度,alpha衡量超过市场的表现
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