In the special case when E's are conditionally independent(though they all depend on the alternative, Ak), P(, E2..)= P(A... -)P() ()P) This is easy to do and can be done recursively

模拟的依据 由电磁场理论可知,稳恒电流电场和静电场的空间分布是一致的,只要电极形状一定, 电极电势不变,空间介质均匀,在任何一个考察点,均有E稳恒=E静电或稳恒静电 (可以同轴圆柱形电缆的“静电场”和相应的“稳恒电流场”来讨论这种等效性),因此, 欲测绘静电场的分布,只要测绘相应的稳恒电流的电场即可

例1.有一硅样品,施主浓度为D=2,受主浓度为=10cm,已知 施主电离能△ED=E-E=0.05eV,试求99%的施主杂质电离时的温度。 思路与解:令N和NA表示电离施主和电离受主的浓度,则电中性方程为:

Assumptions of the classical Linear Model (Clm) e So far, we know that given the Gauss Markov assumptions, OLS IS BLUE e In order to do classical hypothesis testing we need to add another assumption(beyond the Gauss-Markov assumptions) Assume that u is independent of x,x2…,xk and u is normally distributed with zero mean and variance 0: u- Normal(0, 02) Economics 20- Prof anderson

Stationary Stochastic Process e A stochastic process is stationary if for every collection of time indices 11 e Thus, stationarity implies that the x,'s are dentically distributed and that the nature of any correlation between adjacent terms is

1.三大检索工具简介 ·科技部下属的“中国科学技术信息研究所”从 1987年起,每年以国外四大检索工具SCI、ISTP、 E、ISR为数据源进行学术排行。 由于ISR(《科学评论索引》)收录的论文与SCI 有较多重复,且收录我国的论文偏少;因此, 自1993年起,不再把ISR作为论文的统计源。而 其中的SCI、ISTP、E数据库就是图书情报界常 说的国外三大检索工具

A型题 1.直立时女性腹膜腔最低部位是 A.直肠膀胱陷凹B.坐骨直肠窝 膀胱子宫陷凹D.直肠子宫陷凹 E.肝肾隐窝 2.不属于腹膜内位器官的是: A.胃B.脾C.子宫D.输卵管E.阑尾

1.上颌窦开口于: A.上鼻道B.中鼻道C.下鼻道.蝶筛隐窝E.上、中鼻道均有开口 2.喉腔最狭窄的部位是: A.前庭裂B.声门裂C.喉口D.喉中间腔E.喉室

一、最佳选择题:在五个备选项中选择一个最合适的选项,并将相应序号A、B、C、D或E填入答题纸上;每题2分,共20分。 1.思想道德修养课程的教学目的主要在于解决()问题 A.世界观、人生观和价值观 B.目标意识和理想观 C.金钱观、苦乐观和幸福观 D.成才观和人生价值观 E.爱情观和友谊观

2.1 Introduction: the role of packaging in the food chain Packaging has a significant role in the food supply chain and it is an integral part both of the food processes and the whole food supply chain. Food packaging has to perform several tasks as well as fulfilling many demands and requirements. Traditionally, a food package makes distribution easier. It has protected food from environmental conditions, such as light, oxygen, moisture, microbes, mechanical stresses and dust. Other basic tasks have been to ensure adequate labelling for providing information e.g., to the customer, and a proper convenience to the consumer, e.g., easy opening, reclosable lids and a suitable dosing mechanism. Basic requirements are good marketing properties