试论我国教育政策分析的可能范式

我国目前的教育政策分析正在发生阶段性转变,基本处于前范式阶段。弱批判性的价值分析与具有功能主义倾向的制度分析都不可能成为教育政策分析的成熟范式。只有建立在对教育政策和制度关系模式深刻理解的基础之上,运用新制度主义分析(特别要考虑对于政策行动者策略行为的分析),吸收价值分析的有益成果,最终指向对教育政策的制度伦理考量的分析框架才可能成为我国教育政策分析的相对成熟范式。     

The DT-Polynomial Approach to Discrete Time-Varying Network Flow Problems

This paper introduces a polynomial operator called the DT-polynomial as a novel approach to network flow problems. The class of networks dealt with is time-varying in the sense that the capacity, cost, and travel-time of each edge may vary in discrete time. The Dt-polynomial is a polynomial in two operators, D (delay) and T (time), which is used for describing the time-varying transmission characteristics. The paper starts with the mathematics involving the DT-polynomials. A new shortest arrival route algorithm is presented, and its computational complexity is found to be favorable in comparison with others such as Dijkstra's method and the potential method derived from Ford-Fulkerson's technique. Furthermore, a dynamic flow problem is formulated and analyzed in terms of DT-polynomials, and a latest-departure earliest-arrival schedule is given. Finally, a modified DT-polynomial is applied to digital filter networks.     

Stability analysis of nonlinear control systems with characteristics equations having complex coefficients

In this paper, the stability equation method is applied to the analysis of nonlinear systems with characteristics equations having complex coefficients. Three types of systems are studied: those with unstable open-loop poles, unstable characteristics roots or an equal number of open-loop poles and zeros.     

长春是神的

长春是我走进的第十三个省会城市。连我都奇怪,在走南闯北的旅程中,虽说东北去得不多,可也有几次去过哈尔滨、去过沈阳和大连,怎么就会没有到过长春。这次到了长春,遇到了来自哈尔滨和沈阳的作家朋友,才知道原来这两个城市离开长春都很近,通了高速公路,不过就是几个小时的路程。     

天下第一雄关嘉峪关

看到嘉峪关的第一眼,我就觉得此行不虚了。连日来行进在茫茫的戈壁滩上,黄沙浩浩,树与水变成稀罕物,由此我以为嘉峪关也是一片漠漠的黄色,没想到嘉峪关居然是这样的水秀树明,仿佛回到了江南!嘉峪山谷不仅美好,而且地势险要。它南有终年积雪的祁连山,北是