IP/MPLS over WDM网络生存性的研究

该文首先分析了IP/MPLS over WDM网络单层生存性和多层联合生存性,并就生存性策略的性能进行对比,然后对多层空闲资源分配进行了研究。     

A Network Architecture with High Availability for Real-time Premium Traffic over the Internet

Real-time traffic will be a predominant traffic type in the next generation networks, and networks with 100% reliability and availability will be required by real-time premium traffic. It is believed that QoS guarantees could be better provided by connection oriented networks such as Multi Protocol Label Switching (MPLS). These connection oriented networks are more vulnerable to network failure. Conventional path protection methods perform re-routing to cope with this. However, re-routing always causes packet losses and results in service outage. These losses are bursty in nature and highly degrade the QoS of the real-time premium traffic. Thus, 100% availability cannot be achieved by conventional methods. The novel path protection proposed in this paper recovers the bursty packet losses due to re-routing by using forward error correction (FEC) path. Therefore, it can provide network architecture with no service outage for such traffic. The numerical results show that the proposed method can achieve a very high availability for real-time premium traffic in future IP/MPLS networks.

论环境陶艺与技术

当代环境陶艺不仅仅表达艺术家自身的情感以及对社会的关注,更多的是在对传统陶瓷技艺的继承与发扬的基础上,赋予陶瓷新的价值。本文从数字技术与印刷技术对环境陶艺的影响;陶艺雕塑成型与安装;可拆卸的陶瓷壁画与装置;室外整体烧成等四方面对环境陶艺的新技术进行了阐述。     

Modeling Instrumental Rationality, Land Tenure and Conflict Resolution

Full instrumental rationality and perfect institutions are two cornerstoneassumptions underlying neoclassical models. However, in the real world, thesetwo assumptions never hold, especially not in developing countries. In thispaper, we develop a game theoretical model to investigate if relaxations inthe full instrumental rationality and perfect institutions premise can explainthe conflicts that have been occurring between the various principals in theNarok district in Kenya with regard to land tenure and use.     

SunOS下基于一次性口令和封装保护的网络安全设计与实现

多数网络守护神的实现很少考虑全球性访问的卷入问题,在某些情形下,这样的访问可允许灵敏信息的全球发布,如加密口令。在其它情形下,运行在网络任何地方的进程都会引起局部变化。针对可能出现的这些问题,在SumOS环境下,在防火墙上实施一次性口令认证以及封装保护措施,主些措施实现起来比较容易,而且可增强网络的安全性。     

盲的环境补偿方法

环境鲁棒性是语音识别系统的一个很重要的问题。本文讨论了环境加性噪声和卷积噪声对语音数据的影响,以及提高系统的鲁棒性的盲的环境补偿方法。     

不锈钢活性炭滤器的氯腐蚀与防腐

本文就活性炭在预处理中脱氯的不锈钢滤器的氯腐蚀机理进行了探讨，并提出了不锈钢活性炭脱氯滤器的防腐方法和措施。     

Pressures and procedures for the design of safe consumer products

An assessment is provided of the current position regarding changes in UK or EEC civil law under which injured parties can obtain redress in respect of injuries caused by defective products. One effect of proposed systems of strict liability in tort will be to shift some of the burden of proof from the injured party on to the producer of the product claimed to have caused injury. It is argued that this is a just and logical change, given the unfairness and anomalies in present systems and the relative abilities of consumers and producers to avoid such incidents and to bear or to offset the cost of the consequences. Cases of apparent misuse of a product by a consumer may frequently be induced by the design of that product and could thus be prevented by more thoughtful design. In order that producers can ensure their own viability and satisfy the consumer market, their products must be safe, efficient, comfortable and satisfying to use, as well as durable, serviceable and realistically priced. One requirement for achieving this has been said to be the input of accident and ergonomics data early in the product development process; the present paper examines this proposition. Evidence is provided by research into the design and manufacture of consumer products for the UK market, carried out at Birmingham University. Examined in particular are the extent to which formal development processes and design safety review procedures are used, and the degree of utilisation of accident, ergonomics, user testing and market feedback data, identifying barriers to the widespread use of these. Safe and ergonomic design of products must aim to be seen as a positive business activity, rather than as a cost-centre. The benefits to a company of a comprehensive design safety programme will more than outweigh the costs given the pressures identified earlier.     

风险社会下的刑法沉思——兼评食品安全刑法保护的严刑峻法

科技带来快捷与便利的同时也带来了风险与隐患,科技的“双刃剑”在食品安全领域的演绎尤为突出,助推着食品安全犯罪的发生并日益挑战民生底限。基于此,刑法在立法、司法乃至理论研究方面均呈现出严刑峻法的实证关注和理论热情。但法治毕竟不同于政治,更有别于民意,食品安全刑法保护理应遵循“秉承谦抑、坚守原则、兼顾例外、行政延伸”的理性进路。     

浅析金鸡拦河闸重建工程的环境保护与防治控制

论述了泉州市金鸡拦河闸重建工程的意义,分析了重建工程对河道上下游水生态环境的影响,提出了环境保护与污染防治措施。