公理化概率论首先使随机过程的研究获得了新的起点，它是作为随时间变化的偶然量的数学模型，是现代概率论研究主要论题. 一类普遍的随机过程叫Markov过程，这是一种无后效性随机过程，即在已知当前状态情况下，过程未来状态与其过去状态无关. 原始形式马尔可夫过程——马尔可夫链最早由Markov（1907年）提出，故命名为Markov过程，1931年Kolmogrov用分析的方法奠定了Markov过程之理论基础；Kolmogrov之后，在此研究中作出重大贡献而影响了整个概率论的重要代表人物有P. Lev
A dipole antenna is a radio antenna that can be made of a simple wire, with a center-fed driven element. It consists of two metal conductors of rod or wire, oriented parallel and collinear with each other (in line with each other), with a small spac
Defining material coefficients of anisotropic yield function as scalar functions of equivalent plastic strain is usually employed to model subsequent anisotropic behavior of metallic sheet. However, it might be difficult to take into account the inf
