废水零排放在废纸造纸废水中的应用

原有废纸造纸废水处理工艺为沉淀池加气浮池,实际运行表明,仅用简单物理化学方法不能够满足水质的循环使用.为了实现废水零排放,运用折流式厌氧反应器（anaerobic baffled reactor）对废水处理系统进行了改造.改造后的废水处理系统CODcr的祛除量达到3 221 mg/L,BOD的祛除率达到95%左右,有效地减少了废水中的有机污染物,软化了水质,使循环水质达到回用标准,给企业带来了675万元/a的效益.     

输电线路行波保护原理与研究现状

介绍了输电线路行波保护的形成背景,回顾了国内外行波保护的发展历程,分析了各种行波保护原理的优缺点。在此基础上,针对过去行波保护研究上所遇到的困难提出了相应的解决措施,重点对暂态行波信号的提取、相关技术领域的发展和小波数学分析工具的应用等几个方面进行了阐述。展望了行波保护的发展前景。     

三基色白光LED光源颜色稳定性的研究

在介绍LED光谱特性及色品坐标的基础上,针对三基色白光LED光色不稳定问题,分析了温度对不同材料、不同颜色组成白光的三基色LED光谱特性及色度坐标的影响。利用混色方程,验证了通过对三基色组成LED光通量比例的控制可以使三基色白光的颜色满足约束条件,达到颜色稳定的目的。     

基于虚拟电容式电压互感器的能量平衡保护

容式电压互感器(CVT)传变特性使继电保护装置获得二次电压和电流瞬时值不再满足被保护输电线路分布参数模型，影响了能量平衡保护的可靠性。该文提出基于虚拟CVT的能量平衡保护新方案。该方案将保护获得的电流量经过虚拟数字CVT传变后，再进行能量平衡保护计算。为论证基于虚拟CVT能量平衡保护的可靠性，文中从理论上分析均匀输电线路分布的电压和电流量经过同样的CVT传变后，暂态电压与电流的相互关系仍满足输电线路分布参数模型，并进一步推论出线路分布电压和电流量经过相同的线性电路传变后其相互关系也不发生改变，这就为输电线路保护应用传变后信息量提供了理论参考。最后用ATP仿真验证基于虚拟CVT能量平衡保护新方案。     

Study on Storage Reliability Evaluation for Ammunition Using Gibbs Sampler

For the gradual maturity of Bayesian survival analysis theory, as well as the defects of the traditional methods for storage reliability evaluation, the Bayesian survival analysis method is proposed to build regression models for reliability in the random truncated test. These models can reflect the influences of different environments on the ammunition storage lifetime. As an example, the common exponential distribution is used here, and Markov chain Monte Carlo（MCMC） method based on Gibbs sampling dynamically simulates the Markov chain of the parameters＇ posterior distribution. Also, the parameters＇ Bayesian estimations are calculated in the random truncated condition. The simulation results show that the proposed method is effective and directly perceived.     

Modeling and Performance Prediction of Induction Motor Drive System for Electric Drive Tracked Vehicles

The principle of rotor flux-orientation vector control on 100/150 kW three-phase AC induction motor for electric drive tracked vehicles is analyzed, and the mathematic model is deduced. The drive system of induction motor is modeled and simulated by Matlab/Simulink. The characteristics of motor and drive system are analyzed and evaluated by practical bench test. The simulation and bench test results show that the model is valid, and the driving control system has constant torque under rated speed, constant torque above rated speed, widely variable speed range and better dynamic characteris- tics. In order to evaluate the practical applications of high power induction motor driving system in electric drive tracked vehicles, a collaborative simulation based on interface technology of Matlab/Simulink and multi-body dynamic analysis software known as RecurDyn is done, the vehicle performances are predicted in the acceleration time （0 - 32 km/h） and turning characteristic （v = 10 km/h, R = B）.     

Adaptive quality of service‐based routing approaches: development of neuro‐dynamic state‐dependent reinforcement learning algorithms

In this paper, we propose two adaptive routing algorithms based on reinforcement learning. In the first algorithm, we have used a neural network to approximate the reinforcement signal, allowing the learner to take into account various parameters such as local queue size, for distance estimation. Moreover, each router uses an online learning module to optimize the path in terms of average packet delivery time, by taking into account the waiting queue states of neighbouring routers. In the second algorithm, the exploration of paths is limited to N‐best non‐loop paths in terms of hops number (number of routers in a path), leading to a substantial reduction of convergence time. The performances of the proposed algorithms are evaluated experimentally with OPNET simulator for different levels of traffic's load and compared with standard shortest‐path and Q‐routing algorithms. Our approach proves superior to classical algorithms and is able to route efficiently even when the network load varies in an irregular manner. We also tested our approach on a large network topology to proof its scalability and adaptability. Copyright © 2006 John Wiley & Sons, Ltd.     

制导炮弹末端弹道空中姿态遥测方法研究

介绍了利用摄影测量学的方法对末制导炮弹末端弹道上的飞行姿态进行遥测的方法：在目标区布置3～10个均匀分布的控制点,当炮弹飞至目标区上空后抛掉鼻锥,将目标区图像通过图像发射机传回到地面,地面接收到传回的图像后根据图像上分布的控制点坐标信息,利用单像空间后方交汇法解算出炮弹当前时刻的空中姿态参数;进而综合所得到信息,推导出该型制导炮弹末端弹道上的运动规律。     

Computer Vision Method in Human Motion Detection

Human motion detection based on computer vision is a frontier research topic and is causing an increasing attention in the field of computer vision research. The wavelet transform is used to sharpen the ambiguous edges in human motion image. The shadow＇s effect to the image processing is also removed. The edge extraction can be successfully realized. This is an effective method for the research of human motion analysis system.     

飞行器线性模型提取方法研究

飞行器线性模型是制导与控制系统设计的基础，传统建模方法是利用公式推导，求解力和力矩的导数，确定小扰动方程的系数。文中从工程实际出发，提出了一种基于飞行器非线性模型利用配平系统直接提取飞行器线性模型的新方法。介绍了该方法的原理和实现技术，与传统建模方法大不相同，大大提高了工作效率。