Riding on Tyvek-A Case Study about How a New Material Invented by Western Multinational Company Enters China

This paper is a case study about how a new product developed by Western multinational company enters new market ?the Mainland China. In this study, a new fabric ?DuPont's hi-technical Tyvek?PU Coating, is fashionized and developed into a new fashionable and functional casual-rainwear, using the approach of new product development method ( idea generation; screening; business analysis; development; evaluation and testing; commercialization).     

复线电气化区段施工感应电对人体的危害及防护对策

感应电会对人体造成伤害。从电磁感应和静电感应原理入手，分析了产生感应电的过程，并就如何防止感应电的危害提出了防护对策，有一定实用价值。     

PB在企业管理系统中与多种数据库的连接

分析了使用面向对象数据库软件Power Builder开发煤气公司一表一卡管理系统过程中，对SQL Server和Visual Foxpro两种不同数据库的连接，提出了解决新系统与旧系统的数据兼容问题。     

链条炉存在的问题及解决方法

从炉排横向配风不均、风室压火、煤层厚度阻力及锅炉燃烧等方面分析了链条锅炉存在的问题，并针对存在的问题提出了相应的解决办法。     

Modeling and Control of Active Suspensions for MDOF Vehicle

The conventional method for analyzing active suspension control for a vehicle is only to analyze a quarter or half car with a lower order degree-of-freedom (DOF) model, but such models do not actually model practical applications. Accurate models of a suspension control system require a multi-degree-of-freedom (MDOF) vehicle model with a detailed model of the controller. An MDOF model was developed including the influence of factors such as the engine, the seats, and the passengers to describe vehicle motion using a reduced order model of the controller designed by using the H∞ control method. The control system performance has been investigated by comparing the H∞controller with a linear quadratic (LQ) controller.     

Microbial degradation of bitumen

Summary A blown bitumen Mexphalte R 90/40 with a high content of saturated hydrocarbons was degraded by several microorganisms to the same extent. In batch cultures ofSaccharomycopsis lipolytica, maximal biodegradation was estimated to be about 9% w/w, 3.2·10^–3 g/cm² and 3.1·10^–3 cm of degraded bitumen. The Mexphalte R 90/40 degradation rate was closely coupled to biofilm formation. The microbial activity concerned predominantly the oxidation of saturated hydrocarbons. A direct distillation bitumen 80/100 with a low content of saturated hydrocarbons and a high content of aromatic hydrocarbons and resins was more resistant to biodegradation.     

关于毛泽东的反对错误倾向的分析与思考

毛泽东关于反对错误倾向的思想是非常深刻、非常系统的。完全可以说,毛泽东关于反对错误倾向的思想是一整套严密的理论。我们应该学习和继承这一理论。但在反对错误倾向的问题上,毛泽东有沉重的经验教训值得我们记取。     

An Ig-A-like substance in the chicken's pineal

Summary Immunohistochemistry revealed an Ig-A-like substance on the luminal surface of the pineal follicles and in the parafollicular layer. This substance was observed around 1 week of age and disappeared by 8 weeks at the time when the transformation of the follicular pattern leads to an adult-type pineal tissue.     

基于广义混沌同步的数字图像隐藏方案

基于广义混沌同步理论，提出了一种适于网络图像传输的隐藏数字图像的安全通讯方案．构造了一个六维广义混沌同步系统作为新方案的加密器，理论分析和计算机模拟说明本方案具有较高的保真度和较强的抗破译能力．     

基于LDAP协议实现统一的网络管理研究

基于网络上信息存储方式的不统一及其所面临的困难 ,结合复旦大学校园网的特点 ,在深入研究LDAP协议的基础上 ,给出了一套跨协议认证的解决方案 ,提出了关于同步问题的两个模型和基于CSN方法的实现办法