A New delay control method for real-time flows

This paper presents a novel control algorithm to decrease the worst-case delay bound for high rate homogeneous and heterogeneous real-time flows when the network traffic load becomes heavy. The algorithm is adaptive based on the instantaneous network situations. It employs a generalized form of traditional (σ,ρ) regulator called the generalized (σ,ρ,λ) regulator that operates like the (σ,ρ) regulator under the normal network traffic load situation, but provides more regulations for the heavy network traffic load situation. For a set of real-time flows, we can show that D _rg ≤D _g where D _rg and D _g are the worst-case delay bounds with the (σ,ρ,λ) regulator and the (σ,ρ) regulator respectively. More specifically, we have developed a set of formulas to set the parameters for the new regulator so as to reduce the worst-case delay bounds for the real-time flows. We can prove that there exists a threshold input rate ρ^* such that D _rg = D _g for ρ≤ρ^* and D _rg < D _g for ρ > ρ^*. When the average input rate of real-time flows is very high, the generalized regulator can effectively control the delay. The extensive experiment data match our theoretical results. The part of this paper has been appeared in The 23 ^rd IEEE International Conference on Distributed Computing Systems, 2003. The work is supported by CityU strategic grant Nos: 7001777 and 7001709 and CityU ARP Project No. 9610027. H. Wang was partially supported by National Natural Science Foundation of China (10471088, 60572126) and CityU strategic grant no. 7001709. Wanqing Tu is now with Department of Computer Science, The Hong Kong University of Science and Technology. Clear Water Bay, New Territories, Kowloon, Hong Kong.     

浅论单位盗窃的立法完善

单位盗窃行为的性质众说不一 ,本文从犯罪的本质、盗窃罪的主要特征、司法实践的刑事处理论证 ,认为单位盗窃属于犯罪行为 ,并提出增设单位盗窃罪的设想。     

丁玲精神世纪长存--迎接丁玲百年诞辰

丁玲是一位伟大的无产阶级革命家、作家,中国妇女的榜样和模范.她给后人留下了极为丰富和宝贵的精神财富.这笔重要的财富,不仅仅限于她撰写的近三百万字的各类脍炙人口的著作,更重要的是凝聚和体现在这些作品及她一生言行中的高尚风格和品质.它们集聚和表现为丁玲精神.丁玲精神是巾帼精神的完美体现;丁玲精神是延安精神的代表;丁玲精神是中华民族精神的象征;丁玲精神是人类理想的写照.     

基于SNMP的光突发交换网络管理方案

介绍了光突发交换网的原理与体系结构,论述了基于简单网络管理协议的光突发交换网络管理的实现,其中包括网络管理的模型与体系结构,管理端与嵌入式代理端开发工具的选择,光突发交换网的核心节点与边缘节点管理信息库的设计与扩展,配置管理、性能管理及故障管理三大网管功能的实现。     

以模拟为基础的氨合成塔内件优化设计计算

本文提出以模拟为基础，以氨净值为目标函数，以上绝热层，冷管层，下绝热层高度为调优变量的氨合成塔内件优化设计计算方法，并编制了相应的计算程序，实例表明本法具有简单、可靠、快速等特点。     

An epitome of the population of old China]

An analysis of data from the 1946 census of the province of Hupei, China, is presented. Data are included on total population and population distribution, sex, age, marriage, education, employment, and place of origin. The demographic effects of the war against Japan are noted, and changes that have occurred over the 30 years since 1947 are considered. The author concludes that the demographic situation in Hupei in 1947 was representative of China as a whole.     

股份制改革是增强国营企业活力创造“深圳效益”的重要途径

本文分析了深圳特区前10年经济高速发展和经济效益滞后的矛盾,认为特区国营企业经济效益不高是影响特区经济效益严重滞后的主要原因之一。在此基础上,提出深圳特区要在90年代创造出“深圳效益”,必须在已取得的改革成果的基础上,加快国营企业股份制改革的进程。文章还从股份制改革的理论和实践两个方面阐述了特区国营企业股份制改革的可行性和必要性。     

面对世界的变幻———破解寓言体小说《幻变》

长篇寓言体小说《幻变》在爱情故事的背后蕴藏着深意和哲理.面对世界的变幻,艺术地表达了对生态的思考,不仅表现了自然生态、社会生态,还表现了心灵生态,以一种“异类思维”、“换位思维”的生态观关注自然、社会和人文生态的互通、互动和互惠的关系,寄托了对生态走向的美好心愿和诗意向往.同时小说昭示我们,要改变自然生态、社会生态和人文（文化）生态,就要从改变心灵生态入手.     

A Bayesian Meta-Modeling Approach for Gaussian Stochastic Process Models Using a Non Informative Prior

In this article, an efficient Bayesian meta-modeling approach is proposed for Gaussian stochastic process models in computer experiments. Different prior densities and particularly, a non informative hyper prior have been employed on the parameters involved in the correlation matrix. And the estimation of related parameters is obtained by the expectation-maximization algorithm. Compared with the recent work of Li and Sudjianto (2005 Li , R. , Sudjianto , A. ( 2005 ). Analysis of computer experiments using penalized likelihood in Kriging models . Technometrics 47 : 111 – 120 .[Taylor & Francis Online], [Web of Science ®] , [Google Scholar]), the proposed approach is not only of higher prediction accuracy but also of lower computational cost, due to the utilization of the non informative prior and the absence of tuning parameters. Experimental results demonstrate that our approach yields state-of-the-art performance.     

经济增长是否存在“贫困陷阱”

本文从OLG随机增长模型出发,使用中国城市数据估计参数化的产出运动方程,对人均实际产出分布的动态过程进行模拟预测。研究发现,尽管产出运动方程并非严格凹,但稳态均衡唯一,经济增长未出现"贫困陷阱"。长期来看,地区经济最终趋于单峰收敛,采用离差指数衡量经济发展平衡程度的结果显示,经济发展不平衡程度将有所下降。外生扰动(如技术进步、政策扶持)的持续性越强,经济增长收敛越快。