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Then the error sources of the reaction type and electron type electric energy mete were analyzed and the theory analysis result through the concrete test have been proved. At last, the main conclusion has been drawn. When the induction type electric energy meter measures harmonics energy, the negative error characteristic appears. The higher the frequency of harmonics is, the greater the error is. The electron type electric energy meter can measure harmonics energy accurately in general cases. Except thermo-electrical conversion type electron type power meter, reaction type and electron type electric energy meter can measure direct current power.

本论文通过分析感应式和电子式电能表的工作原理推导出了电能表计量电能的数学模型；分析了感应式和电子式电能表的误差来源以及谐波对计量的影响，并通过具体的试验对理论分析结果进行了验证；得出了如下谐波对电能表计量影响的主要结论：感应式电能表计量谐波电能时，呈现负的误差特性，谐波频率越高，误差越大；电子式电能表在其频响范围内可以准确计量谐波电能。

Along with several typical problems as the measurement of small low-frequency current, the restraint and compensation of Rogowski measuring error caused by environmental temperature change, the design of integral unit, the influence of Rogowski coil geometrical error on its measuring error and the restraint of Rogowski coil environmental electromagnetic disturb, this paper introduces the related research status of the applied research of Rogowski coil.

本文阐述了Rogowski 线圈的应用研究领域的国内外现状，特别针对Rogowski 线圈应用研究中的低频小电流的测量、线圈温度效应误差的抑制和补偿、积分环节的设计、线圈几何特性误差对线圈测量误差的影响以及外界对线圈电磁干扰的抑制等几个问题，文章做了详细的介绍。

Along with several typical problems as the measurement of small low-frequency current, the restraint and compensation of Rogowski measuring error caused by environmental temperature change, the design of integral unit, the influence of Rogowski coil geometrical error on its measuring error and the restraint of Rogowski coil environmental electromagnetic disturb, this paper introduces the related research status of the applied research of Rogowski coil.

2004高压年会，，中国电机工程学会高电压专业委员会本文阐述了Rogowski 线圈的应用研究领域的国内外现状，特别针对Rogowski 线圈应用研究中的低频小电流的测量、线圈温度效应误差的抑制和补偿、积分环节的设计、线圈几何特性误差对线圈测量误差的影响以及外界对线圈电磁干扰的抑制等几个问题，文章做了详细的介绍。

In order to reduce the measurement error of heat transfer in water and air side for finned-tube heat-exchanger as little as possible, and design a heat-exchanger test-board measurement system economically, based on the principle of test-board system error analyses and design, the equation of measurement error of heat transfer in air side and water side about orifice meter for the finned-tube heat-....

本研究在探讨影响政府机关导入资讯安全管理系统的因素，并设计及发展资讯安全管理系统的绩效衡量架构。研究方法采用文献回顾及专家问卷法进行资料搜集，并应用层级分析法进行评估指标及题项权重分析。研究发现导入资讯安全管理系统之影响因素中，以「获得上级授权程度、建立整体成员。。。。

According to the information of relative orientation from the airplane to airborne anti-submarine buoy, the mathematical model, adopting extended Kalman filtering technique, and simulation algorithm for calculating the buoy position are established in this paper. In respects of the relative position error and RMS error, the simulation results show the error performance of this system.

根据航空搜潜声纳浮标与飞机的相对方位信息，采用扩展卡尔曼滤波技术，分析了计算浮标位置的原理、方法，建立了相应的系统模型和仿真算法，从估计的相对位置误差和均方根误差两个方面，仿真分析了系统的误差性能。

First, according to the tracking error dynamics and kinematics described by unit quaternion error and angular velocity error, a sliding mode controller is derived based on Lyapunov theory.

首先根据由误差四元数和误差角速度描述的跟踪误差动力学和运动学方程，设计了基于李亚普诺夫方法的滑模变结构控制律。

First, this section analyzes the error drifts in bit rate adaptation transcoding, including error drift caused by motion re-estimation and error drift of the pixel-domain transcoding compared with the compressed transcoding.

首先，分析了码率调整型转码算法中存在的若干错误漂移问题：运动估计带来的错误漂移；相对于压缩域转码器，像素域转码器的错误漂移。

System error System error includes constant and variable system error.

系统性误差可分为常值性系统误差和变值性系统误差两种。

Position transformation error is a important part in research of north seeking scheme, the thesis analyses position transformation bringing error of north seeking in two-position scheme and brings forward the method of position transformation error measurement and compensation.

在寻北方案的研究中，转位误差是一个不可忽视的部分，文中以二位置为例分析了转位误差引起的寻北误差和转位误差的关系，并提出了测量和补偿方法。

Experiments were carried out to verify the static model. Experimental results show that the experimental curve matched well with the simulated curve, and there was certain error between them (maximal static error is 0.035 rad). The error cause was analyzed. Then the experiments were carried out to measure the dynamic performances of the side-sway joint. Experimental results show that the step response time of the joint was about 2 s steady value's tolerance zone ?

完成了侧摆关节静态特性试验，试验结果与仿真曲线基本吻合，验证了静态模型的正确性，但存在一定误差（最大静态误差为0.035 rad），分析了误差原因；对侧摆关节进行了动态特性试验，试验结果表明对于不同的期望值角度阶跃信号，侧摆关节开环阶跃响应时间大约是2 s

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。