Windows系统端口安全和防护

针对Windows系统端口的安全 ,介绍端口的基本特征和用途 ;分析木马和病毒等诸多因素对端口的威胁 ;论述端口关闭的方法和原则 ,而该原则是只开放需要的端口 ,以获得最大程度减小被攻击的可能性 ;最后重点阐述端口管理在安全指南软件中的实现 ,希望达到的目的是使不同层次的计算机用户、特别是缺少基本计算机操作和端口安全知识的用户 ,在该软件的指导下都能正确、顺利地管理端口 ,保障微机和网络安全。     

Predicting the frequency of accidents in port areas by developing event trees from historical analysis

The historical analysis of 828 accidents in port areas, which have been selected from a database, has been used to identify the sequences of the accidents. Processing these data has allowed the event trees and the probability of the various accident scenarios to be determined. By using these event trees and figures detailing the frequency of the events that initiated the accidents, as taken from various authors, the frequency of the accidents has been determined.     

An Assessment of Oil Pollution in the Coastal Zone of Patagonia,Argentina

The Patagonian coast is considered a relatively pristine environment. However, studies conducted along coastal Patagonia have showed hydrocarbon pollution mostly concentrated at ports that have fishing, oil loading, general merchant, and/or tourist activities. A high value of total aliphatic hydrocarbons (TAH) was found at the Rawson fishing port (741 μg/g dw). In other ports with and without petroleum-related activities, hydrocarbon values were approximately 100 μg/g dw. The highest values for TAH and total aromatic hydrocarbons (TArH) were found in Faro Aristizábal, north of San Jorge gulf (1304 and 737 μg/g dw, respectively). This is very likely the result of petroleum-related activities at the Comodoro Rivadavia, Caleta Cordova, and Caleta Olivia ports located within this gulf. In other coastal areas away from potential anthropogenic sources, hydrocarbon values were less than 2 and 3 μg/g dw for TAH and TArH, respectively. This review of published and unpublished information suggests that ports are important oil pollution sources in the Patagonian coast. More detailed studies are needed to evaluate the area affected by port activities, to understand the mechanisms of hydrocarbon distribution in surrounding environments, and to assess bioaccumulation in marine organisms. Despite that some regulations exist to control oil pollution derived from port and docked vessel activities, new and stricter management guidelines should be implemented.     

环渤海地区主要港口竞争力评价

随着经济中心的不断东移,东北亚以其独特的地缘优势和经济互补优势正逐渐成为世界经济的新增长点,依托港口优势发展腹地经济也成为各大港口研究的重要课题。引入因子分析方法,以环渤海地区港口群为研究对象,利用2009年统计数据对影响港口竞争力指标进行处理并横向比较,得出港口竞争力排名,同时进行了分析。结果表明,青岛、天津、大连三大港口竞争力最强,但大连港稍显落后。在三大子港口群中,山东子港口群综合优势显著,辽宁子港I：3群存在腹地经济落后、恶性竞争等问题,津冀港口群受行政区划限制,港口资源整合困难。     

Knowledge co-production in practice: Enabling environmental management systems for ports through participatory research in the Dutch Wadden Sea

Coastal zone management is inconceivable without the mobilization and integration of different types of knowledge – that is, without knowledge co-production practices. This article applies the concept of knowledge co-production to analyze the process of emergence, standardization, and enculturation of environmental management systems (EMSs) within port communities in the Dutch Wadden Sea. Moreover, it is a report from the field in which we reflect on the participatory practices conducted to facilitate the knowledge arrangements required to develop EMSs for a group of ports. The article concludes that this type of knowledge arrangement and co-production practices (involving different types of actors and knowledge) might become mandatory in the near future to stabilize the EMS phenomenon in the practices of ports.