8.1 概述 8.2 隔声结构 8.3 隔声装置 8.4 隔声设计

5.1 噪声控制的基本原理与原则 5.2 城市环境噪声控制

4.1 测量仪器 4.2 声强及声功率测量 4.3 环境噪声监测方法

Properties of Pressure Vertical to the surface and point into it. At any point, pressure is independent of orientation

Chapter 1 Introduction 1.1 Preliminary Remarks When you think about it, almost everything on this planet either is a fluid or moves within or near a fluid. -Frank M. White What is a fluid?

◼ 项目费用管理概述 ◼ 资源规划 ◼ 费用估算 ◼ 费用预算 ◼ 费用控制

本文从实际收费数据提取基本交通参数,并以此为基础进行高速公路的不同车型出行规律分析,接着进行断面流量时空分布特性的分析,最后基于sS进行混合流车速分析

◼ Basic concepts and a road map ◼ Efficient and scalable frequent itemset mining methods ◼ Mining various kinds of association rules ◼ From association mining to correlation analysis ◼ Constraint-based association mining ◼ Summary

◼ Why Data Mining? ◼ What Is Data Mining? ◼ A Multi-Dimensional View of Data Mining ◼ What Kinds of Data Can Be Mined? ◼ What Kinds of Patterns Can Be Mined? ◼ What Kinds of Technologies Are Used? ◼ What Kinds of Applications Are Targeted? ◼ Major Issues in Data Mining ◼ A Brief History of Data Mining and Data Mining Society ◼ Summary

7-1 非线性问题概述 7-2 常见非线性因素对系统运动特性的影响 7-3 相平面法基础 7-4 非线性系统相轨迹分析 7-5 描述函数 7-6 用描述函数分析非线性系统