关于城市污水中氮磷去除的探讨

结合水体中氮磷的污染危害性．根据生物脱氮除磷机理,分析了生物脱氮除磷Ａ２／Ｏ环境倒置工艺流程的特点,探讨了该工艺中脱氮除磷效果提高的原因,提出了工艺运行管理过程中应注意的一些问题．     

Application of Teleonic Principles in the Search for Systemic Causes of Accidents in Anesthesia

Safety of patients in anesthesia has always been one of the major concerns of the anesthetist. It is clear from studies of safety in general that many accidents and critical incidents occur as the result of latent systemic failures to which a great number of factors contribute (Reason, 1990). An ideal way to approach this problem would be within a systemic framework, such as teleonics, developed by Járos and his co-workers (Cloete, 1999; Járos and Cloete, 1987, 1993). In this framework the events and procedures in anesthesia are considered to be part of a very complex network of process systems (teleons). It is postulated that teleonic uncertainty (telentropy) in this complex network is a factor that might lead to accidents. In a previous paper presented to the World Congress at Toronto in 2000, the principles of teleonics were described in a mathematico symbolic way (Horváth et al., 2000). This paper contains selected examples of application of these principles to the identification of possible systemic causes of accidents in anesthesia.     

Process—focused Salary System

1　 Introduction1 .1　Background of Process-focused OrganizationThe1 990 s witnessed the theory of BPR( Business Process Reengineering) ,which wasregarded as the forth revolution in the management history,became an effective tool tofight against organization redundancy,bureaucracy atmosphere and informationtechnology black hole[1 ] .Emphasizing on the customer-oriented corporation culture andpaying close attention to the core business processes,BPR uses S( Simplify) ,I( Integration) ,E( …     

Optimal Control of Teaching Process

It is clearly illustrated in[1 ] ,the quantity analysis of the dynamic process of teachingeffects has been clearly illustrated in the first reference,according to which we areinformed of the mathematic model of the teaching process;the function of teachers dwingthe process;as well as the influere on the process of comprehending ofthe students causedby several different functions.But that confines in the specific relationship betweenteaching and learly as far as a single different class,a concre…     

A Reexamination of Methods of Hierarchic Composition in the AHP

1　 IntroductionHierarchic composition orpriority synthesis is an importantstep of the Analytic HierarchyProcess ( AHP) .The original method used in the AHP( Saaty,1977) to conducthierarchic composition is the weighted arithmetic mean.Since the weighted a…     

预测日径流过程的最近邻仿真模型

准确预测日径流过程对区域水资源管理和防洪抗旱决策具有重要的现实意义，文中探讨了用基于历史相似性和数据驱动的最近邻仿真（NNB）模型预测日径流过程的新途径，提出了一套基于加速遗传算法的NNB建模方案，实例研究的结果说明：用NNB模型进行日径流过程预测的计算直观，精度高，这套NNB建模方案简便，有效和通用，在水文气象时间序列预测中具有较好的实用价值。     

一般环流问题过程瓶颈分析

通过定义瓶颈结构来对一般环流问题进行瓶颈分析 ,其中瓶颈结构是一个圈增益为 1的一般网络 ,我们称之为简单增益网络 .对于简单增益网络我们定义了相应的等效简单网络 ,并利用关于简单网络最大流瓶颈分析的结论分析等效简单网络 ,在此基础上进一步完成了一般环流问题的过程瓶颈分析 .     

开环可重入排队网络的递阶增强型学习调度

对平均费用型马氏决策过程 ,研究了一种递阶增强型学习算法 ;并将算法应用于一个两台机器组成的开环可重入生产系统 ,计算机仿真结果表明 ,调度结果优于熟知的启发式调度策略.     

窄带和宽带随机振动的峰值分布研究

以随机振动系统研究为课题，对平衡随机振动的窄带和宽带过程进行了讨论，提出了窄带和宽带峰值频率的估计方法及应用中应注意的问题。     

微波-高分子网络法合成可充锂离子电池材料LiLaxNd0.006-xMn1.994O4及其电化学测试

用微波—高分子网络法 ( m-p)合成掺杂 Li Lax Nd0 .0 0 6 - x Mn1 .994O4( x=0 .0 0 6,0 .0 0 4 ,0 .0 0 2 ,0 ) .XRD图显示用此法可制得晶型很好的样品 .充放电测试说明 Li Mn2 O4的特征容量为 1 2 0 m A/g,循环 2 0次后容量衰减率为 4 .7% .EIS和计时电量图说明掺 La的 Li Mn2 O4表层电阻小 ,而掺 Nd的 Li Mn2 O4的电导率高 .所以 ,将 La和 Nd以合适比例掺入 Li Mn2 O4中有可能提高材料的电导率和循环性能