概述 文字处理: 用计算机对文字资料进行的 输入,编辑、排版、保存、打印 等操作

一、数据库简介 二、检索途径 三、检索结果处理

一、数据库简介 二、数据库检索方式 三、数据库检索结果

肝硬化是一种以肝组织弥漫性纤维化,假小叶和 再生结节形成为特征的慢性肝病。临床上有多系统 受累,以肝功能损害和门静脉高压为主要表现,晚 期常出现消化道出血,肝性脑病,继发感染等严重 并发症

1.1 Information science Definition of information Science Information Science is a trans-disciplinary science with information as its object in study; the laws in information process as its content information methodology as its approach; and the strengthening human information functions particularly the intellectual ability, as its goal

3-1 Measures of Random Syntactic Information Shannon Theory of Information Key point: 1. Information is something that can be used to remove uncertainty. 2. The amount of information can then be measured by the amount of uncertainty it removed. 3. In the cases of communications, only waveform is concerned while meaning and value are ignored. 4. Uncertainty and thus information are statistic in nature and statistical mathematics is enough

1. Information Processing Definition of Information processing All operations exerted to the information itself for its better utilization Information processing is necessary because most of the information in its original form may not be good for use. Thus information processing is the basis of later operations Two categories of information processing: 1)Shallow Level of Information Processing 2)Deeper level of Information Processing

1 Fundamentals of Control Theory N. Wiener: Control theory in engineering, whether it is Concerned with Man, animal or machine, can only be regarded as a part of the theory of information [(G) Controller

1 Introduction Background for New methodology Modern natural science methodology is mainly based on matter and energy Even though matter and energy are still necessitate factors in information system, yet the characteristic feature of information systems, particularly the complex ones, is neither matter nor energy but information Without information, the complex information systems, like brain and intelligent life. cannot be understood

一、定义 1碰撞:两个或两个以上的物体在相遇的极短促 时间内产生非常之大的相互作用力,而其他的相 互作用力相对来说显得微不足道的过程。 其主要特征是动量守恒。 如打桩,基本粒子在加速器中的散射,两球组 成的系统发生的对心碰撞