战后世界交通发展不平衡对全球化进程的影响

二战后世界交通发展的不平衡明显地影响着全球化的进程。随着战后世界交往体系的演变和全球化的深化,在不同的历史时期世界交通发展的不平衡性对全球化进程的影响呈现出不同的特点。     

An Approach to Assessing the Impacts of Incident-Free Transportation of Radioactive Materials: II. Highway Transportation

Annual radiation doses and risks to the public living near, and traveling on, public highways, and occupational doses are calculated for highway shipments of radioactive materials under accident-free and incident-free conditions (i.e., under normal transportation conditions). The database developed by Sandia National Laboratories is used, and calculations are made using RADTRAN 4.0. This report is one of two reports estimating radiological risk associated with transportation of radioactive materials.     

自然环境因素对房地产市场的影响

在影响房地产市场的诸多宏观因素中,自然环境因素的影响最为明显。因此,房地产在进行投资、设计、建设、销售时要考虑其影响。本文从区位选择、交通位置、环境因素、自然风险等四个方面分析了自然环境因素对房地产市场的影响。     

元代海运综述

海运是元代漕运的主要方式.通过对元代海运的成因、发展阶段、主要航线、运粮情况以及管理等方面进行论述,笔者认为,海运是元代经济史上同时也是中国古代漕运史上的一大特色.     

交通系统在旅游目的地发展中的作用探析

本文对旅游交通的概念、旅游交通系统的构成进行了较为全面的阐述 ,并构建了旅游目的地交通花费模式图 ,阐释了旅游交通系统在旅游目的地发展中的作用及其对旅游者目的地选择与出行方式选择的影响。     

关于我国第三方物流发展的思考

随着我国物流领域的发展,企业外购物流服务的需求日益增大。特别是随着外资企业的进入和市场竞争的加剧,企业对物流重要性的认识逐渐深化,对专业化、多功能的第三方物流需求日渐增加。针对我国第三方物流存在的问题,从企业自身以及市场环境展开分析,并提出相应的发展对策。     

广州十三行商埠文化旅游区的规划构想

广州十三行是中国社会形态发展史转折点上最有影响的外贸”特区”。开辟十三行商埠文化旅游区乃名城历史文化遗址整饬利用的最好模式。其规划理念、景观设计、交通组织、开发途径 ,文章作了初步探讨。     

A Risk-Based Approach to Setting Priorities in Protecting Bridges Against Terrorist Attacks

This article presents an approach to the problem of terrorism risk assessment and management by adapting the framework of the risk filtering, ranking, and management method. The assessment is conducted at two levels: (1) the system level, and (2) the asset-specific level. The system-level risk assessment attempts to identify and prioritize critical infrastructures from an inventory of system assets. The definition of critical infrastructures offered by Presidential Decision Directive 63 was used to determine the set of attributes to identify critical assets--categorized according to national, regional, and local impact. An example application is demonstrated using information from the Federal Highway Administration National Bridge Inventory for the State of Virginia. Conversely, the asset-specific risk assessment performs an in-depth analysis of the threats and vulnerabilities of a specific critical infrastructure. An illustration is presented to offer some insights in risk scenario identification and prioritization, multiobjective evaluation of management options, and extreme-event analysis for critical infrastructure protection.     

基于人工神经网络的中原铁路货运向现代物流拓展的对策研究

根据中原铁路货运的现状和自身优势,结合国内外市场需求变化和现代物流发展趋势,运用现代物流原理,分析论证了中原铁路运输业拓展现代物流的必要性、战略目标、创新策略及拓展对策.     

超临界流体萃取技术原理及应用研究简述

近年来,随着科学技术的发展,超临界流体萃取技术在国内外分离领域取得了巨大进步。本文就超临界流体萃取技的发展概况,原理,应用,以及未来发展做了简单的介绍。