Synthesizing plans that contain actions with context-dependent effects1

This paper presents a method of solving planning problems that involve actions whose effects change according to the situations in which they are performed. The approach is an extension of the conventional planning methodology in which plans are constructed through an iterative process of scanning for goals that are not yet satisfied, inserting actions to achieve them, and introducing subgoals to these actions. This methodology was originally developed under the assumption that one would be dealing exclusively with actions that produce the same effects in every situation. The extension involves introducing additional subgoals to actions above and beyond the preconditions of execution normally introduced. These additional subgoals, called secondary preconditions, ensure that the actions are performed in contexts conducive to producing the effects we desire. This paper defines and analyzes secondary preconditions from a mathematically rigorous standpoint and demonstrates how they can be derived from regression operators.     

游泳馆智能卡收费管理系统

介绍了江苏省体育中心游泳馆智能卡收集管理系统的总体结构、对象识别方式及其应用。     

NOAA卫星云检测和云修复业务应用系统的研制和建立

介绍了NOAA气象卫星云检测、云替补的光谱原理、技术模型以及基于VB5.0版本的业务系统的基本功能。系统经过试验运行和实况验证,取得了良好的运行效率与精度较高的云检测和替补效果,从而为NOAA卫星的遥感应用提供了可靠的数据源保证。     

国家核应急管理信息系统概念设计

总结了一些国家的应急管理信息系统的结构特点，并结合我国实际情况，提出了我国的国家核应急管理信息系统的概念设计方案。提出的系统应具有以下4个基本特征：①直观的基于地理信息系统的显示与信息查询界面；②与核事故后果评价软件共享数据和结果：③包含完备的数据库；④能够通过网络接收数据，并能实时通过网络发布应急响应信息和指令。     

MIMO-OFDM系统中基于压缩感知的信道参数反馈方法

为了解决MIMO-OFDM系统中基于完全信道状态信息预编码所面临的反馈链路开销大的问题,提出将压缩感知技术应用于这种预编码的信道状态信息的反馈阶段。在接收端通过压缩感知技术对由信道估计得出的信道状态信息进行观测,将少量的观测值反馈到发送端,在发送端通过正交匹配追踪算法重构出完全信道状态信息。仿真结果表明,信道状态信息在KLT域的压缩感知性能明显优于DCT域的压缩感知性能,可以由反馈到发送端的少量采样值精确地重构出信道状态信息,降低了反馈链路的开销。     

Upgrading Computational Design

Shajay Bhooshan heads up the computation and design ZHACODE group at Zaha Hadid Architects (ZHA) and is a course master at the Architectural Association Design Research Laboratory (AADRL). Here he argues that Parametricism 2.0 has a vital role to play in the progressing of computational design. Assimilating the exploratory developments of the last 15 years, he asserts how the next phase of Parametricism will enable a further consolidation and evolution of digital practices.     

国外干粉灭火系统引进使用情况调查

介绍了几套从国外引进的干粉灭火系统的组成、主要技术指标、控制方式及使用、运行情况，并就各自特点进行了分析，可供我国消防产品开发、工程设计和管理人员参考借鉴。     

DISOPE distributed model predictive control of cascade systems with network communication

A novel distributed model predictive control scheme based on dynamic integrated system optimization and parameter estimation (DISOPE) was proposed for nonlinear cascade systems under net work environment.Under the distributed control structure ,online optimization of the cascade system was composed of several cascaded agents that can cooperate and exchange information via network communication.By iterating on modified distributed lin ear optimal control problems on the basis of est imating parameters at every iteration the correct op timal control action of the nonlinear model predicti ve control problem of the cascade system could b e obtained,assuming that the algorithm was convergen t.This approach avoids solving the complex nonlinear optimi zation problem and significantly reduces the computation al burden.The simulation results of the fossil f uel power unit are illustrated to verify the eff ectiveness and practicability of the proposed algorithm.     

On the conjunction practical stability and controllability of large-scale impulsive control systems

We studied the conjunction practical stability and controllability of large-scale impulsive control systems by using the comparison systems and vector Lyapunov functions. Then the less conservative sufficient conditions fo r conjunction practical stability and controllability of large-scale impulsive control system were obtained.     

论管理机制与创新

一个组织的管理效果在很大程度上取决于管理机制的好坏。因此，管理机制便成为了一个重要的研究课题。笔者就这一研究课题作些探讨，以供讨论参考。