first law of thermodynamics

The Investigation of the First Law of Thermodynamics in an Open System

开放系统中的热力学第一定律

It is a new technology on the base of first law of thermodynamics .

它的原理是依据热力学第一定律，是一种全新的技术。

All human beings obey the first law of thermodynamics .

所有的人都在遵循热力学的第一定律。

Discussion on the first law of thermodynamics

热力学第一定律的讨论

The idea that energy is conserved is the first law of thermodynamics .

能量守恒这一概念是热力学的第一定律。

The Micro Explanation of the First Law of Thermodynamics

热力学第一定律的微观阐释

The application of the First Law of thermodynamics in estimation cooling water volume the diesel engine

热力学第一定律在估算柴油机冷却水量中的应用

The heating effect of capacitors in operation is given based on the first law of thermodynamics .

本文用热力学第一定律给出电容器在工作时产生的热效应。

Heat transfer changes the internal energy of both systems involved according to the First Law of Thermodynamics .

传热变化的内在能量两地的法律制度所涉及的，根据热力学第一定律。

This is an abstract and powerful mathematical statement of the first law of thermodynamics .

这是热力学第一定律的一个抽象，而且具有很强数学性的表述。

Fairly powerful statement , and that 's another form of the first law of thermodynamics .

这是一个相当有用的表述，是热力学第一定律的另外一种形式。

PROFESSOR BAWENDI : Last time you talked about the first law of thermodynamics .

教授：上一次我们谈到，热力学第一定律。

The First Law of Thermodynamics in the P-V Graph

热力学第一定律在p&v图上的表示

We had explained a micro mean of the first law of thermodynamics in a nearly independent ideal gas system .

以近独立单原子分子理想气体系统为研究对象，对热力学第一定律进行了微观阐释。

According to the first law of thermodynamics , LNG releases a great quantity of cold energy during gasification .

由热力学第一定律可知，LNG气化时必然会释放大量的冷能。

At present , research on energy saving air-conditioning systems remains in the first law of thermodynamics and second law of thermodynamics basis .

而目前，空调系统的节能方法的研究，还停留在热力学第一定律和热力学第二定律的基础上。

We reformulate the first law of thermodynamics in terms of quantum-mechanical operators on the parameter manifold .

我们用量子力学的语言重新解读了热力学第一定律。

So he grabbed his thermometer , and went and made a couple of measurements and discovered the first law of thermodynamics .

所以他拿来了温度计，进行测量，后来就发现了热力学第一定律。

The method of thermal balance only follows the first law of thermodynamics , it does not truly represent the rational use of energy in kiln .

热平衡分析法以第一定律为基础，仅对能量的数量进行衡算，以求得需消耗的能量或可获得到的能量的数量，不能真实反映出能量利用的合理程度；

The essential of entropy in the dissipative structure is the macroscopically order and energy transformation , and embodies the first law of thermodynamics .

耗散结构中熵的实质是宏观有序和能量转换，体现的是热力学第一定律。

Molar heat capacities in the processes of quasi static state of perfect gases are discussed according to the first law of thermodynamics in this paper .

从热力学第一定律出发，详细讨论了理想气体准静态过程中的摩尔热容。

Deeply understand the essence and expressions of the first law of thermodynamics ; Using the expression of the first law to solve related problems occurred in practical project .

深刻理解热力学第一定律的实质，熟练掌握热力学第一定律的表达式。正确地利用热力学第一定律表达式解决工程实践中的有关问题。

The symmetry of the permittivity tensor is found to be based on the first law of thermodynamics and the non-wastage condition .

由热力学第一定律及无损条件导出了介电张量的对称性；

This paper discusses the first law of thermodynamics of the white hole , so as to provide a theoretical basis for the possibility of existence of white hole .

有待实践检验.本文从形式上给出了白洞的热力学第一定律，试图为白洞的存在提供一种理论上的可能性。

The coefficient of performance and exergy efficiency of small cool storage air conditioning system are analysed based on the first law of thermodynamics and the second law of thermodynamics .

基于热力学第一定律和第二定律，分析了该蓄冷空调系统的能效比（制冷系数）和有效能效率。

The data model of the material and energy system is established based on the mass balance and the first law of thermodynamics . The material and energy balance of various systems is analyzed .

以物料守恒和热力学第一定律为基础，建立了各系统的物质能量系统数据模型，分析了各个系统内物料及能量的平衡状况。

The character of longitudinal-flow heat exchanger and baffle board heat exchanger is analyzed with the first law of thermodynamics and the second law of thermodynamics .

采用热力学第一定律和热力学第二定律的基本原理，分析比较了两种换热器的性能。

Energy analysis mainly have tow methods , namely enthalpy analysis on the base of using the first law of thermodynamics and exergy analysis according to the second law of thermodynamics ;

焓分析是基于热力学第一定律的分析方法；而（火用）分析则是基于热力学第二定律的分析方法。

A paradox of work done by friction is clarified , and the general format of principle of energy-work and the first law of thermodynamics are presented .

本文澄清了一个关于摩擦力做功的佯谬，并提出了功能原理与热力学第一定律的一般形式。

The first law of thermodynamics is the theorem on conversation of energy , while the second law of thermodynamics is the theorem describing the direction of the conversion of energy .

热力学第一定律是关于能量守恒的规律，而热力学第二定律则是描述能量转化方向的规律，它们是两条相互独立的热力学基本定律，两者之间应该是互相补充的。