旅游危机管理初步研究

政治风波、经济危机、恐怖主义活动、战争以及疾病等危机都以不同的方式影响着人们的出游能力,制约着旅游业的可持续发展.为规避风险,迫切需要探究旅游危机管理的内在机理,建立科学的旅游危机管理机制,推动旅游系统向修复或优化系统方向演变.从系统运动的角度浅析了旅游系统演化变异的外部因子,探析了旅游危机管理的一般范式.     

FT-IR系统在垃圾焚烧烟气排放连续监测中的应用

傅立叶变换红外分析(简称FT-IR)系统具有如湿法分析、多组份监测、低检测限和极宽的动态测量范围,特别适合垃圾焚烧炉排放的气态污染物的监测.本文主要介绍了FT-IR系统的测量原理、技术规格、系统组成和运行结果,并讨论了FT-IR系统的发展和改进.     

山东省环境经济系统地域分异研究

环境保护与经济发展相协调,是人类社会持续发展的必由之路.环境经济系统是由环境子系统和经济子系统耦合而成的复合大系统.在用系统论对环境经济系统进行结构分析的基础上,采用主成分分析法和加法合成原理,对山东省17地市环境经济系统进行综合分析和类型划分,并从地域差异角度提出了分区特点及今后的发展建议,以期为山东省环境经济系统高水平协调发展提供决策依据.     

基于能值的工业生产系统可持续性分析

在绝大多数工业生产系统的运行过程中,都会不可避免地产生一定量的污染物,它们会对环境造成一定的危害.本文针对目前在工业系统能值分析中对排放废物的环境影响考虑较少的情况,采用传统和改进的能值评价指标对考虑污染物排放前后的硫酸厂系统发展的可持续性进行了分析.分析结果显示,改进后的能值评价指标更能够反映工业生产系统的特点;考虑污染物能值影响后的系统的能值产出率没有变化,但系统的环境负载率升高,同时系统环境可持续发展性降低.     

混合制城市排水系统污水溢流成因与对策

伴随城市雨污分流改造工作的开展,混合制城市排水系统成为主流.混合制城市排水系统污水溢流是城市受纳水体的重要污染源之一.为有效控制混合制城市排水系统污水溢流的频次和水量,最大程度上降低对城市受纳水体的污染,从理论上、排水工程建设及城市排水系统的日常养护管理等方面剖析了混合制城市排水系统污水溢流的原因,给出了各种针对性的控...     

资源型城市系统演化的涨落因子及其协同分析

资源型城市系统能否形成新的、有序的耗散结构主要依赖于系统中的随机涨落,而这种随机涨落的产生是由各种触发和激化因子决定的.分析了资源型城市系统演化过程中的内源激化因子和外源触发因子,探讨了它们之间的协同动力机制,找出了资源型城市系统演化的序参量是科技进步水平、政府宏观调控和国家对资源型城市的投资.     

电厂脱硫石粉系统的调试

文章介绍了太仓环保电厂脱硫石粉系统的调试情况,提出了制粉系统调试中易出现的问题及解决办法.     

实行居民生活垃圾浮动定额收费的探讨

根据污染者付费原则,各国都开展了生活垃圾收费的实践.本文对定额收费制、从量收费制、超量收费制三种基本的生活垃圾收费方式进行了比较分析.在此基础上,笔者结合上海当前实际提出了浮动定额收费系统,并就该系统的框架和制度进行了探讨性的设计.     

云蒙山国家森林公园内部旅游解说系统的改善

改进旅游解说系统是全面改善旅游景区管理的重要环节.以云蒙山国家森林公园为例,通过对游客的问卷调查获取一手资料,在简要阐明旅游解说系统概念、原则与目标以及与游客特征的关系的基础上,总结了公园内部旅游解说系统目前存在的问题,并通过对公园游客相关特征的分析,对公园内部旅游解说系统的改进提出了建议.     

基于WebGIS的四川省自然资源信息系统构建研究

为实现自然资源信息共享,提出了基于ArcGIS Server和.NET平台的四川自然资源信息系统构建的方案,详细阐述了共享平台的整体框架,分析了系统的结构、功能和数据库设计,以及系统实现过程中用到的关键技术及其实现.     

网络入侵诱骗技术的研究

在介绍基于网络和基于主机的入侵检测系统的基础上，分析了入侵诱骗技术和Hon—eypot技术。基于诱骗技术的网络安全系统是入侵检测的扩充，是网络安全技术中的一个新的研究领域，具有广阔的应用前景。     

INTERACTIVE DISTRIBUTED CONSERVATION PLANNING1

ABSTRACT: In the environmental and agricultural conservation planning process, more efficient and effective tools are needed for planners to assist private landowners with making wiser land use decisions. Current methods are slow, inefficient, and costly. Scientific techniques have not been fully implemented within the planning process, yet such plans are increasingly needed to meet water quality and Total Maximum Daily Load (TMDL) requirements. The objectives of this study are to (a) utilize the web for accessing an integrated science‐based land use decision support system; (b) link decision tools, models, and databases to the user via the web; (c) link distributed models and databases for enhanced planning efficiency; and (d) integrate the above into an easily usable and readily accessible system. The procedures resulting in the initial design involved planning expertise and focus groups' input. The system was developed in partnership with the Natural Resources Conservation Service of the U.S. Department of Agriculture and several state agencies. A survey of 150 certified conservation planners, the end users, was conducted to identify the data sets and planning tools needed. Data, tools, and models then were selected and integrated into a web accessible system. Specifically, the first generation used a web interactive Geographic Information System (GIS) that overlaid onto digital orthoquads and/or soils polygons field boundaries, transportation, hydrologic features (such as drains, rivers, lakes, etc.), and high pesticide risk runoff or infiltration areas. Conservation planners found they could save time with the system. Clients could access the system quickly to help them prepare for meeting with their planner. Previously acquiring GIS maps in some cases had been a lengthy process that limited use of the information in land use decisions.     

重庆市农产品质量安全现状与发展对策

重庆市农产品质量安全总体上不容乐观,全面提升农产品质量刻不容缓。市场粮食质量安全令人担忧;茶叶质量安全不容乐观;蔬菜质量安全得到一定程度的控制,无公害蔬菜基地建设取得可喜成绩;水果质量安全总体较好。针对重庆市农产品质量安全现状与原因,提出了全面提升农产品质量安全的八大对策。     

实现安全环保无隐患管理的基本原则

为了贯彻环境保护基本国策及落实安全第一的生产方针,各企业应该推行ISO14001/OSH/HSE体系管理制度,保障生产设施性能符合HSE管理体系的要求,弘扬企业文化,建设学习型组织,完善事故应急救援预案,推进战略决策型基层组织建设。真正做到“关爱生命、关注环境、关心公众”,实现安全环保无隐患管理。     

Development of an Earthen Dam Break Database

Earthen embankment dams comprise 85% of all major operational dams in the United States. Assessment of peak flow rates for these earthen dams and the impacts on dam failure are of high interest to engineers and planners. Regression analysis is a frequently used risk assessment approach for earthen dams. In this paper, we present a decision support tool for assessing the applicability of nine regression equations commonly used by practitioners. Using data from 108 case studies, six parameters were observed to be significant factors predicting for peak flow as a metric for risk analysis. We present our work on an expanded earthen dam break database that relates the regression equations and underlying data. A web application, regression selection tool, is also presented to assess the appropriateness of a given model for a given test point. This graphical display allows users to visualize how their data point compares with the data used for the regression equation. These contributions improve estimates and better inform decision makers regarding operational and safety decisions.     

HSE绿卡管理模式在HSE管理体系中的应用

结合健康、安全与环境(HSE)管理体系的实施,提出了HSE绿卡管理模式。利用该模式可以在不同阶段对不同岗位、不同专业的人员进行科学的及系统的HSE培训教育工作,对员工进行规范的HSE培训、考核与管理,从而有效地消除生产过程中人工操作的不安全行为。实际验证结果表明: HSE绿卡管理模式是实施HSE管理体系的有效措施,它为成功地实施健康、安全与环境管理体系提供了充足的人力“资源”基础,从而实现“以人为本”的现代管理体制。     

高职计算机应用专业基于工作过程课程体系开发的探讨

介绍了基于工作过程课程体系开发的一般方法,探讨了该方法在计算机应用专业课程体系开发中的应用,并以网站开发综合课程为例,介绍了基于工作过程课程开发方法在具体课程教学设计中的应用。     

The System Dynamics of Nuclear Energy in Singapore

In this article, a system dynamics model is developed to study the complex issues involving nuclear energy in Singapore by assessing four essential aspects, namely (1) Economic, (2) Environment, (3) Social, and (4) Political in various scenarios. The first factor juxtaposes the monetary benefit from deploying nuclear energy with the current situation. The second deals with carbon dioxide emission, nuclear waste, and thermal pollution from nuclear power plant. The third part discusses the safety and social acceptance toward nuclear project, and the last section analyzes the political stability in provision of nuclear energy advent. The proposed system dynamic model incorporates all four components that allow us to run sensitivity analysis based on various scenarios and enables us to gain insight in how each domain evolves with time. Based on the model, we present advantages and disadvantages of possessing nuclear power plants in Singapore and suggest remedies to rectify the drawbacks.     

AUTOMATED WEB GIS BASED HYDROGRAPH ANALYSIS TOOL,WHAT1

The separation of the base flow component from a varying streamflow hydrograph is called “hydrograph analysis.” In this study, two digital filter based separation modules, the BFLOW and Eckhardt filters, were incorporated into the Web based Hydrograph Analysis Tool (WHAT) system. A statistical component was also developed to provide fundamental information for flow frequency analysis and time series analysis. The Web Geographic Information System (GIS) version of the WHAT system accesses and uses U.S. Geological Survey (USGS) daily streamflow data from the USGS web server. The results from the Eckhardt filter method were compared with the results from the BFLOW filter method that was previously validated, since measured base flow data were not available for this study. Following validation, the two digital filter methods in the WHAT system were run for 50 Indiana gaging stations. The Nash‐Sutcliffe coefficient values comparing the results of the two digital filter methods were over 0.91 for all 50 gaging stations, suggesting the filtered base flow using the Eckhardt filter method will typically match measured base flow. Manual separation of base flow from streamflow can lead to inconsistency in the results, while the WHAT system provides consistent results in less than a minute. Although base flow separation algorithms in the WHAT system cannot consider reservoir release and snowmelt that can affect stream hydrographs, the Web based WHAT system provides an efficient tool for hydrologic model calibration and validation. The base flow information from the WHAT system can also play an important role for sustainable ground water and surface water exploitation, including irrigation and industrial uses, and estimation of pollutant loading from both base flow and direct runoff. Thus, best management practices can be appropriately applied to reduce and intercept pollutant leaching if base flow contributes significant amounts of pollutants to the stream. This Web GIS based system also demonstrates how remote, distributed resources can be shared through the Internet using Web programming.