一、法拉第电磁感应定律 二、动生电动势 三、感生电动势和感生电场 四、互感 五、自感 六、磁场的能量

一、磁介质对磁场的影响 二、原子的磁矩 三、磁介质的磁化 四、H的环路定理 五、铁磁质 六、简单磁路

What is Convective Heat Transfer? You have already experienced it. Difficulty lies in generalizing our experience; filtering it down to a few laws: learning how to apply these laws to systems we engineers design and use Here is what i want you to do:

Viscous flow The Navier-Stokes Equations Nonlinear, second order, partial differential equations

Heat Exchangers, LMTD Method Where we’ ve been. So far have focused on detailed heat transfer analysis of specific conditions, such as external heat transfer coefficient Where were going: Investigate methods for larger system level analysis that combine all these modes of heat transfer in heat exchangers

Natural Convection Where we’ ve been. Up to now, have considered forced convection that is an external driving force causes the flow. Where we’ re going: Consider the case where fluid movement is by buoyancy effects caused by temperature differential Heat Transfer Su Yongkang

Heat Exchangers. NTU-8 Method Where we’ ve been∴ Analysis of heat exchangers using log mean temperature difference (LMTD)

Natural Convection Where we’ ve been Up to now, have considered basic concepts of natural convection, the governing equations and laminar free convection on vertical surface Where were going Consider empirical correlations for natural convection Heat Transfer

激光又名莱塞(Laser) 全名是“辐射的受激发射光放大 (Light amplification by stimulated emission of radiation 世界上第一台激光器诞生于1960年 1954年制成了受激发射的微波放大器 梅塞( Maser) 它们的基本原理都是基于1916年爱因斯坦 提出的受激辐射理论

一、德布罗意波 历史 德布罗意假设:不仅光具有波粒二象性,一切实物粒子如电 子、原子、分子都具有波粒二象性。 他提出:一个质量为m,速度为v的粒子具有波动性,只有 一个波长为λ,频率为v的波与之相对应,各量的关系为: