城市地下管网震后安全恢复评价曲线研究

安全恢复评价曲线（$RAC）是应用主分量分析法降维的思想,根据管网恢复评价指标中存在着一定相关性的特点,用较少的指标来代替原来较多的指标,描点形成安全恢复评价曲线。该曲线很好地解决了管网震后恢复评价过程中,多指标评价带来的选取指标过程中的主观性和由此导致的评价结果的偏差等问题,有效地提高评价的精度和效率。文章阐述了SXAC的原理与构造方法,结合聚类分析,给出了SRAC评价应用算例。     

居民货币需求的“结构性流动陷阱”及其对我国物价变动影响之研究

由于当前经济改革中的一些结构性问题使我国居民存在对货币需求的"结构性流动陷阱"."结构性流动陷阱"是我国近年来城乡居民储蓄存款高速增长的根本原因,也是对我国自1997年以来物价变动产生重要影响的一个基本因素.文章首先对当前转型期我国存在的居民货币需求"结构性流动陷阱"形成原因进行分析,其次,依据这个观点对我国近年来出现的通货膨胀和通货紧缩的基本原因和特点进行深入的分析和系统的研究,并就我国未来短期内物价走势进行分析和预测.     

探析高层建筑火灾的特点及技术防范

随着经济的高速发展,人口的增加,以及建筑用地的短缺,近年来高层建筑的数量飞速增长,建筑高度和层数不断增加,因此高层建筑火灾发生概率也相应增高。由于高层建筑防火、灭火工作比低层建筑复杂、困难,一旦发生火灾,人员伤亡和财产损失都极为严重。因此,如何解决高层建筑的火灾防控已成为一个社会性的难题。文章列举了高层建筑典型火灾案例,分析了高层建筑火灾的特点,提出了高层建筑火灾防范的技术措施。     

关于林业生物灾害防治工作的调查报告

通过对江西、浙江、辽宁、河北、重庆等省(市)林业生物防控工作的调查,发现存在防控体系和防控能力不强,防控御灾"各自为战,配合不够",防控管理"越位、错位、缺位",防治减灾"钱随灾流、人随灾走"等问题。因此要树立森林健康理念,提高森林自身"抗性",将预防林业生物灾害贯穿林业生产全过程。     

Estimating the economic value of big game habitat production from prescribed fire using a time series approach

This paper demonstrates a time-series production technique to quantify the deer harvest and deer hunting benefits of controlled burns or prescribed fire. The time series regression model showed a statistically significant and positive effect of prescribed fire on deer harvest. The net economic value of the resulting additional deer hunting benefit was estimated using the Contingent Valuation Method at $ 98 per additional deer harvested. The initial deer hunting benefits of an additional 1,000 acres of prescribed burning are between $ 2,674 and $ 3,128 or $ 2-3 per acre. The costs of prescribed burning greatly exceed these benefits, suggesting that deer hunting benefits represent only a small part of the multiple use benefits of prescribed fire.     

消防水幕系统的研究现状概述

本文基于目前国内外专家对于消防水幕的研究成果,介绍了不同因素对消防水幕衰减辐射热、阻隔有毒有害气体等方面能力的影响规律,分析了消防水幕在工程中应用的可行性和存在的优缺点,希望以此为消防水幕系统的设计与研究提供参考。     

混凝土结构火灾损伤检测技术在过火购物广场的应用

通过某一火灾事故中的混凝土结构检测鉴定实例,总结了混凝土火灾损伤检测常用的方法,提出了检测中常遇到的一些问题,并针对这些问题提出了一些对策与建议。     

水土流失防治措施与工程设计

文章结合某煤矿整合建设的实践经验,简要探讨了建设项目水土流失的防治措施。     

Visitor perceptions of crime-safety and attitudes towards risk: The case of Table Mountain National Park,Cape Town

This paper investigates tourist perceptions of crime-safety and attitudes towards risk whilst visiting Table Mountain National Park (TMNP) in Cape Town in June and July 2008. The study examined survey data of 303 domestic and international tourists during their visit to TMNP. A linear regression analysis revealed that although visitors had concerns about their personal safety they are still likely to return to TMNP and recommend it to other people. In addition, visitor attitudes towards risk did not influence perceptions of crime-safety and its effect on their intentions to revisit or recommend TMNP. The results also show that respondent's individual characteristics such as age, nationality, and purpose of visit influenced their perceptions of crime-safety. Perceptions that TMNP is unsafe tended to increase with respondent's age. Respondents on holiday were more likely to perceive TMNP as safer than those on business or visiting friends and relatives. The study's findings add to the literature by offering more insight on tourist perceptions of crime-safety and attitudes towards risk and their impact on tourist behaviour. Various tourist-crime prevention measures to enhance visitor safety at national parks are also recommended to the tourism industry and law enforcement agencies.     

我国资源型企业国际化风险辨识与防范研究

在对企业国际化路径、发展阶段和风险管理等理论分析的基础上,提出了资源型企业国际化发展风险辨识的理论框架,结合我国资源型企业国际化发展的业务展开对风险的全面性分析,从而建立了我国资源型企业国际化发展的风险体系。针对国际化发展过程中的8类具体风险,包括政治、政策、经济、文化、管理、资金、技术、市场等方面,提出了应对不同风险国际化发展过程中的各种风险的防范措施,以期为资源型企业国际化发展风险管理提供思路与经验借鉴。