Constructing the News: The Role of Local Newspapers in Environmental Risk Communication*

Effective risk communication is central to good environmental risk management. While studies have shown that newspapers are the primary source of information to the public regarding environmental issues, little is known about how environmental news is used as a risk‐communication tool. This article explores the role of local information systems in risk communication, using newspaper content analysis as well as in‐depth interviews with journalists and community residents to develop a case study of an environmental assessment process for a nonhazardous industrial‐waste landfill. Results indicate that risk messages were chosen and shaped by journalists on the basis of their own exigencies. In addition, while newspapers were a major source of risk information, their impact was mitigated by resident distrust and access to other information sources, most notably their own personal information networks. These results have implications for environmental policy, as decision makers often use—either passively or actively—print media as a risk‐communication tool.     

一种具有光柱显示功能的测控仪表

介绍了以ＡＴ８９Ｃ２０５１微控制器为核心的一种测控仪表的设计,着重讨论了如何通过模拟串口实现光柱和数字的混合显示的软件和硬件设计,并提出了多个模拟串口公用数据线传输的方法。由于本设计充分利用了微控制器的软,硬件资源,使得该仪表集双路光柱,数字显示于一体,并具有控制和通信功能,而且便于扩充。     

浅析通信行业引入GIS的必然性与市场前景

从分析通信行业及通信网络的特点,现状入手,阐述了通信行业引入ＧＩＳ、建立通信网络地理信息系统的必然性。同时,针对我国地理信息系统应用的实际情况,夺国产优秀地理信息系统基础平台－ＭＡＰＧＩＳ应用于通信行业的历史及市场前景进行了粗略的回顾与展望 。     

用VC++6.0实现计算机与GPS通信

本文首先介绍遵循NMEA0183协议的GPS数据，然后通过实例详细地介绍基于VC 6．0的计算机与GPS串口通信应用程序。     

紫外线强度指数监测和控制系统

根据单片机原理和计算机通信技术，采用ATML89C51、ADC0809等芯片微控制器和集成电路、紫外辐射宽波段传感器，结合计算机串口通讯技术，设计出实用的紫外线强度指数监测和控制系统。该系统可自动采集紫外线强度指数数据，进行历史数据库的分析和查询，研究该地区紫外线强度的变化规律。     

Abstract of ph.d Dissertation

With the rapid development of global information highway,multimedia communication technology plays a more and more important role in national economic and social development.However,the multimedia communication system is a complicated real time distributed system and its software is difficult to develop.In order to improve the rapid development and application of the multimedia communication technology,there is an urgent need to carry out the basic research work of software development platform in this field.……     

以GPS技术为核心、构筑中国LBS体系

介绍了LBS的起源、定义、系统组成和相关技术，着重介绍了LBS在国外的发展和现状，以及与GPS技术的关系。     

VC多线程串口通讯编程技术在GPS导航的应用介绍

主要阐述了在GPS导航中，采用多线程异步串口通讯方式从GPS接收机实时读取导航定位数据的方法和过程。     

在Windows下开发GTS-210型全站仪的数据通信软件

本文以实际工程为例介绍了如何利用VB编制GTS— 2 10的自动控制程序 ,可以被GTS— 2 10的用户直接引用 ,对其他数字测绘从业人员也有重要的参考价值。