Yet, the temperature goes up. So, I can have a temperature change which is an adiabatic temperature change.
它与外界不会,有物质或者能量的流动,然而系统的温度升高了。
So now I have my first of my two slopes, in terms of something that's related to my system the heat capacity of the system.
好,我们现在得到了,两个微分式中的一个,它等于与系统密切相关的一个量。
But their alphabet has got nothing to do with Mycenae; this is a new thing altogether.
但是他们的字母系统与迈锡尼的没有关系,它完全是一个全新的东西
The respiratory system, for example, the renal system, the digestive system, these are examples - three examples of organ systems that contact the external environment.
例如,呼吸系统,泌尿系统,消化系统,这些系统,这三个系统,与外环境相联系
The real difference between Federal Reserve Bank System of 1913 the most important difference and the Federal Reserve System of today is that we are no longer on the gold standard.
913年的联邦储备银行系统与,当今的联邦储备银行系统之间3,不同点在于,最重要的不同点,我们不再以金本位为基础了。
So we have system insulated from the outside world, and we have two bulbs.
我们有一个与环境隔绝的系统,和两个腔体。
Adiabatic means there's no heat transferred in or out of the system.
绝热意味着系统,与化境没有热交换。
It's not going to be zero this time because we have non zero heat exchange between the system and the environment, right.?
热力学量,但是现在让我们看一下,我们的特殊函数,这次它不会是零,因为系统与外界的热量交换并不是零,对吧?
Intensive properties don't care about the scale of your system.
强度量与系统的规模,没有关系。
We've talked about the interesting way in which the digestive system contacts the external environment.
我们会讲到,消化系统与外环境之间十分有趣的联系
Depending on what you call external and internal environment, this path that I'm tracing here, deep within your digestive system, is really directly connected to the outside world through both ends.
基于你们所谓的外环境和内环境,我在这里我所指的消化系统内部通路,它的两端确实与外界环境直接相通
We're going to find other properties that do care about the history of the system like work, that you put in the system, or heat that you put in the system, or some other variables But you can't use those to define the equilibrium state.
我们还会发现其他一些,与系统的历史有关的性质,比如你对系统做的功,或者你向系统传递的热量,或其他的变量,但你不能用它们,来定义平衡态。
OK, so that means heat is being imparted to the system, right, from the surroundings in a manner that compensates exactly the amount of work done.
好,这表示系统,从外界吸热,吸收的热量与系统,对外做功的值相等。
That great deal of specificity implies that heat is also path-dependent and again we have the convention that if heat is added to the system, the quantity is greater than zero.
热也是与路径有关的,根据通常的习惯,如果我们对系统加热,其符号取为正。
The whole thing is going to be insulated.
整个系统与外界绝热。
This will be the first real example where we've talked about the physiology of an organ system together with engineering approaches to modulate that organ, and that will continue throughout the semester.
届时我们将第一次真正地把,器官系统生理学,与调节器官功能的工程学方法结合起来,这方面内容将贯串我们整个学期
One thing that's been a trend around the world is that the I mentioned that the U.S. Federal Reserve System was different from other central banks in that it was designed to have independence.
一个在世界范围内,流行的事实是,我提到过美国联邦储备系统,与其他中央银行不同,因为它有独立自主性。
There's no heat flowing from the environment to the system. I have to define my terms.
系统与外界间,并没有热传递发生。
These two systems which are shown in the core of this diagram really are responsible for regulating and exchanging information between the other organ systems.
在这张图的中心画的就是这两个系统,它们的功能是调节其他系统,并与之交换信息
There's no change in them, and then we also looked at some at non-state functions, work and heat, and saw that those aren't zero going around a cycle. Of course you can do work in a cyclic process, and heat can be exchanged with the environment at the same time.
它们不会有变化,然后我们研究了,一些非态函数,功和热量,并看到,沿着循环行进一周的话,它们并不是零,当然你可以在,一个循环过程中做功,而同时热量可以在系统,与外界环境之间进行交换。
One class of them is beta-blockers, they bind to beta-adrenergic receptors, which are receptors that exchange information between your nervous system and the contractile system that beats your heart and that causes the heartbeat.
一类药物是β阻断剂,它们与β肾上腺素受体结合,这种受体能够在神经系统和,控制心跳的心肌收缩系统之间传递信息,从而产生心跳
So one way that neurons, in particular, are able to communicate with other cells in the nervous system, share information, integrate information, decide what to do next is that they are physically connected to other different cells.
所以神经细胞之所以能够,与神经系统中其他细胞通讯,分享信息,整合信息,从而决定下一步该做什么,是由于不同细胞间,是彼此连接在一起的
Your stomach is a very complex organ that has a muscle layer, it has an epithelial layer which is the interface with food that comes in, and it also has a nervous system, so does the heart.
你的胃是一个非常复杂的器官,它拥有一个肌肉层,有一个与摄入的食物,相接触的表皮层,也有一套神经系统,心脏也有
So we'd really like to be able to find some sort of equation of state, or some sort of rather function of state that's going to relate the heat going in or out of the system with that function of state, because this isn't going to do it.
所以我们真的想要去,找到一些态方程或者态函数,通过这个态函数可以表示热量,在系统与外界的交换,因为这个不能表示它。
For example, HIV enters cells of the immune system by binding to a receptor called CD4.
比如,HIV通过与CD4的受体结合,进入到免疫系统细胞中
U It's u, because u is to q plus w right, heat and work, but it's adiabatic. So there's no heat, exchange with the environment, and it's constant volume, so there's no p dV work, right.
什么是零?是U,因为,等于q加w,热量和功,但这是绝热的,所以系统与环境间没有热量交换;,同时它是灯体的,所以也没有pdV形式的功。
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