Chapter 2: The chapter concentrates on the powerful instrument in studying the carrier transport properties—thermopower.. Starting with the base theory, the chapter discussed the thermoelectricity phenomenon in metal and semiconductor in detail, including the useful Mott formula, phonon drag effect (normal process and Umklapp process), abnormal thermopower in transition metal, two-band model, magneton scattering, and so on. To resolve the abnormal thermopower in low temperature, some theoretical models, such as the distortion of Fermi surface, resonant scattering, spin-bag model, were argued. Each of them has its limition.
第二章：对热电势这一研究物质载流子输运性质的手段进行了综述，从热电势的原理和基础理论研究开始，针对金属和半导体的热电势现象进行了详细讨论，包括研究工作中常用的Mott公式、声子曳引的正常过程和Umklapp过程、过渡金属异常的热电势现象、双带模型及磁子散射机制等等，对于低温下的异常散射机制讨论了声子曳引、费米面畸变、共振散射机制、自旋口袋模型等若干种理论模型及其局限性。
In response, Cauchy, Green and Stokes contributed theoretical and mathematical observations to an'entrainment'hypothesis which later came to be known as the'ether drag'concept.
对此，柯西、绿色和斯托克斯观察到数学和理论贡献'夹带'假说所后来被称为'乙醚拖'的概念。
The energy exchange analysis indicates that gliding energy efficiency is dependant on the lift drag ratio of the wings and gliding angle of the hull. Through the calculation in this thesis, it can be concluded that enhancing the lift drag ratio can largely improve the energy efficiency when the gliding angle is in the range of 10to 40 degree, and when lift drag ratio is fixed, there exists a special gliding angle for the maximum of the efficiency, which provide theoretical basis for the design of operating parameters.
通过能量转换分析，得出滑翔机航行效率由机翼升阻比和机身航行角决定，航行角在10~40度范围内，增大机翼升阻比可显著提高航行效率；并由计算得出，在升阻比一定的情况下，总存在一个使滑翔机航行效率达到最大的航行角度，为样机工作参数设计提供了理论依据。
This paper extends the previous two-dimensional analytical theory of the inviscid periodic separated flow over an infinitely long traveling wavy wall to axisymmetric flow, which serves as a theoretical guidance to the study on active drag-reduction flow control by flexible wall with traveling waves.
将已有的无限长行波壁无粘周期分离流的二维解析理论推广到轴对称流，作为研究用柔壁行波主动控制实施减阻的基础。
The theoretical analysis of boundary layer in vane of centrifugal two-phase flow pump may provide a basis for flow drag in vane surface and a theoretical evidence to determine vane curve.
离心式固液两相流泵叶片的边界层的理论分析，可以为分析流体在叶片表面沿程阻力提供基础，进一步也可以为确定叶片型线提供理论依据。
The effectiveness of micro-bubble drag resistance is quite apparent from the current theoretical result.
从已有的理论研究来看，微气泡减阻效果比较显著。
On the basis of analysing dynamical behavior of macromolecules, a theoretical model is proposed for velocity fluctuation in non-Newtonian laminar flow of drag reducing solutions and basic equations for the model are established.
在分析溶液中大分子运动状态的基础上，对减阻液非牛顿层流的速度波动成因提出了理论模型，并建立了波动统计参数的基本方程。
It is said that the drag reduction of the flow past a circular cylinder is of very wide engineering application background and of important theoretical investigating value.
降低亚临界绕流工况下的圆柱绕流阻力具有广泛的工程应用前景和重要的理论研究价值。
Theoretical and Experimental Study to Mechanism of Aerodynamic Drag Reduction of Container Truck with # - Shaped Fences
集装箱货车加装井字型格栅减阻的机理研究
The flow properties of high concentration coal-water slurry (CWS) were thoroughly discussed along with some impactive factors. The theoretical analysis and calculation method to the drag force in pipe flows of CWS were summarized.
讨论和分析了高浓度水煤浆的管内流动特性，阐述了影响水煤浆流动特性的若干因素，综述了水煤浆管内流动阻力特性的理论和计算方法。
The theoretical analysis and experimental results show that boundary layer separation will produce pressure drag.
理论分析和实验的结果说明：边界层分离将引起压差阻力。