集中送风结合局部送风实现手术室局部净化

针对我国盲目投资建设大量高级别洁净室的现状，研究一种局部净化设备解决垂直单向流存在的问题．寻求关键手术区最优局部净化效果的净化方式，采用数值模拟得出一般垂直单向流存在的问题，并比较一般垂直单向流和局部净化设备对关键区的净化效果，从而得出局部净化设备的最佳风量、风速，研制出局部净化设备，通过实测验证其净化效果、发现问题并加以改进，集中送风结合局部送风可以得到关键手术区最优的局部净化效果．在手术室利用送风单元进行局部净化，以较低的初投资和运行费用可灵活实现较高的洁净度．     

6—BA对平菇菌丝体生长及新陈代谢的影响

平菇在马铃薯液体培养基的基础上,通过添加不同浓度的6一BA,探讨6—BA对平菇菌丝体生长及新陈代谢的影响。结果表明:低浓度6—BA对平菇菌丝体生长具促进作用,而且使蛋白质和核酸含量增加;高浓度6—BA则逐渐显示抑制作用,其最适作用浓度为1.5ppm,而6—BA对平菇菌丝体可溶性糖含量无明显影响。     

AGVs Dispatching Using Multiple Cooperative Learning Agents

AGVs dispatching,one of the hot problems in FMS, has attracted widespread inte rest in recent years. It is hard to dynamically schedule AGVs with pre-designed rule because of the uncertainty and dynamic nature of AGVs dispatching progress,so the AGVs system in this paper is treated as a cooperative learning mul tiag ent system, in which each agent adopts multilevel decision method, which includes two level decisions:the option level and the action level.On the option level,an agent learns a policy to execute a subtask with the best resp onse to the other AGVs'current options. On the action level,an agent learns an optimal policy of actions for achieving his planned option.The method is applied to a AGVs'dispatching simulation,and the performance of the AGVs system bas ed on this method is verified.     

一种增强Linux实时性能的技术

在对Linux核心进行分析的基础上，深入研究了Linux操作系统的不可切换性和实时信号的延迟性，提出了一种增强Linux操作系统实时性能的技术方案。     

对高校化学实验楼污染源的防治

随着高校教学科研的不断发展 ,高校化学实验楼污染源的防治已经引起高度重视。文章介绍了高校化学实验室污染源防治和管理的经验。     

一种结构简单的感应电机调速系统研究

以８０９８单片机为控制主芯片、ＩＧＢＴ智能模块为开关元件组成一个简单的控制系统，提出了适应于８０９８运算速度的电机磁链、转矩和转速观测模型及相应的控制算法。研究结果表明：该系统结构简单，工作可靠，能够满足一般交流传动系统的动静态性能要求。     

AHP中广义判断矩阵排序向量的非特征根算法

本文提出层次分析法中广义判断 阵排序向量的两种非特征根算法：“和法”及ＬＡＭ法。算法简便易行，利于广义ＡＨＰ的推广使用。     

Demodulator for Chaotic Secure Communication Based on Proportional-integral Feedback Design

A scheme of chaotic secure communication based on the parameter modula tion and the inversion of a chaotic dynamical system is analyzed. According to this scheme,information signal is modulated by a bifurcation parameter of the transmitter,which is in chaotic state.In the receiver,a proportional integral feedback demodulator is used to demodulate the information signal,which only uses the available synchronizing error as well as stateness of receiver. The purpose of this demodulator is proposed to overcome the influence of differentiation oper ation, nonlinear part and singularities in chaotic system. Numerical simulation is proposed to show the effectiveness of this demodulator.     

纳米Ag粉体的晶格畸变

采用Ｘ－ｒａｙ衍射和电子省射等方法研究了纳米银粉体的晶格结构特征，通过测定不同粒径纳米银粉体的点参数，发现纳米银粉体的晶畸变表现为晶格收缩，其收缩量与粒径倒数１／ｄ成正比。在总结前人结果的基础上，给出了关于纳米材料晶格收缩或膨胀的熵判据，并讨论了有关的结果。