12.1 Introduction 12.2 Using the State of the System to Determine Stability 12.3 Lyapunov Stability Theory Ferenc Szidarovszky 12.4 Stability of Time-Invariant Linear Systems University of Arizona

7.1 方波发生器 7.2 三角波发生器 7.3 锯齿波发生器 7.4 压频转换 7.5 正弦波发生器

11.1 Introduction 11.2 Linear Frequency Response Plotting Paul Neudorfer 11.3 Bode Diagrams Seattle University 11.4 A Comparison of Methods 11.1 Introduction The IEEE Standard Dictionary of Electrical and Electronics Terms defines frequency response in stable

Transfer Functions of Filters 10.1 Introduction 10.2 Ideal Filters 10.3 The Ideal Linear-Phase Low-Pass Filter Richard C. Dorf

9.1 Introduction Richard C. Dorf 9.2 Three-Phase Connections University of California, Davis 9.3 Wye Delta Transformations 9.1 Introduction Two very important two-ports are the T and II networks shown in Fig. 9.1. Because we encounter these two

8.1 Introduction 8.2 Properties of the z-Transform Linearity. Translation. Convolution. Multiplication by a\. Time Reversal Richard. Dorf 8.3 Unilateral z-Transform University of California, Davis

1.1 半导体的基本知识 1.2 PN 结及半导体二极管 1.3 特殊二极管 1.4 半导体三极管 1.5 场效应晶体管

7.1 Introduction 7.2 State Equations in Normal Form 7.3 The Concept of State and State Variables and Normal Tree 7.4 Systematic Procedure in Writing State Equations 7.5 State Equations for Networks Described by Scalar

6.1 Definitions and Properties Richard C. Dorf Laplace Transform Integral. Region of Absolute University of California, Davis Convergence Properties of Laplace Transform.Time-Convolution Property Time-Correlation Property Inverse Laplace Transform

我们知道，地球本身就是一个巨大的磁铁。而地 球上的一切生物，都是在地磁场的影响下繁衍生 存。然而地磁场是极不稳定的，它除了受四季变 化的影响之外，还要受太阳黑子爆发时的巨大影 响。很多年前，科学家就已知道太阳的活动会影 响地球，每当磁爆发生时，太阳风就会携带着大 量的带电质子和高能粒子，并以每秒400 至800 公里的速度闯入太空、袭击地球。此时，地球磁 场就会发生变化并影响人类身体健康