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Conventionally the electric load forecasting can hardly attain a result whose accuracy meets what's required. A short-term load forecasting model is therefore developed to solve the problem, based on the process neural network of which the input is the function of time and the high forecasting accuracy is available. Describes the structure of the model, discrete data fitting method by the expansion of function orthogonal basis and learning algorithm.

针对目前常用方法在解决负荷预测问题时，结果往往难以达到工程要求精度的现状，利用过程神经网络输入为时间函数以及预测精度高的特点，建立了基于过程神经网络的电力系统短期负荷预测模型；给出了模型的结构，基于函数正交基展开的离散数据拟合方法以及模型的学习算法。

Legs' and joint-clearances' effects were analyzed to improve the accuracy of 3-TPT parallel machine tool. Every link in the platform was treated as a joint-link train. The mapping from the errors of legs and joint-clearances to the accuracy of terminal was achieved by using matrix method with the differential of kinematic function.

为提高3-TPT型并联机床的运动精度，解决杆长误差和铰链间隙误差的影响问题，将3-TPT型并联机床的各条支链作为假想的单开链，利用矩阵法结合从运动学方程微分得到的结论，推导出杆长误差和铰链间隙误差与终端动平台位置误差的映射关系。

The theory of the system is combining formation of image and parallel white light projection. The system uses many edg measurement methods with subimage-element accuracy, and has many merits such as hige measurement accuracy, strong anti-interference function, intuitionistic measurement, convenient using and esay maintenance and so on. The repeatability of position measurement is below 0.1μm (0.05 pixel). EDG is used in practical machining of feedback stick, which is used in astronavigation industry.

在分析研究各种CCD工业检测技术基础上，研制了基于CCD和PC数字图像处理技术的反馈杆刚度检测系统，该系统采用成像法和平行白光投影法相结合的原理，综合运用了多种亚像素精度边缘检测方法，具有检测精度高、抗干扰能力强、检测直观、使用方便和易于维护等优点，其位置检测的重复精度可稳定在0.1μm（0.05像素）以内。

In this paper, in cognizance of the lack of accuracy of the calculation results in the current method of seismic analysis for the frame structures, the paper is searching for a new approach, using continuous models and through the establishment of the partial differential equations to carry on the dynamic analysis of the fiame structures, the limited units will be expanded to the unlimited units, each component as a continuous unit to deal with without the need of further subdivision, making the structure of dynamic behavior closer to the actual behavior and to improve the accuracy of the results.

本文针对当前框架结构抗震分析的动力时程法计算结果不精确的不足，寻求一种采用连续模型并通过建立偏微分方程来对框架结构进行动力分析的新方法，把每个构件作为一个连续单元来处理而不需要再细分，使得结构的动力行为与实际更为接近，从而提高计算结果的精度。

We constructed a finite volume scheme of fifth order Hermite type with high accuracy for twopoint boundary value problems, choosing trial and test spaces as the fifthorder finite element space of Hermite type and the piecewise linear function space respectively. We didn't use higher derivatives as interpolation conditions, which is the same as the thirdorder finite element of Hermite type, but the scheme obtained had higher accuracy.

构造求解两点边值问题的一种Hermite型五次元高精度有限体积法，其中试探函数空间取Hermite型五次有限元空间，与Hermite型三次元相同，未引入更高阶导数作为插值条件，检验函数空间取分段线性函数空间，这样构造的格式求解精度更高。

IHT is make used of to proceed line edge fitting in the actual engineering. The auto-adaptable image edge detection method is applied to detect image edge in real project, and the region of image edge detected is limited within 1 pixel. IHT is also applied to fit line edge. Comparing with MHT, the result of IHT indicates its speed quick, the accuracy high, and anti-jamming-quality strong, exactly said that the accuracy of IHT fitted line is less than 0.1 pixel for polar distance and less than 0.01deg for polar angle.

自适应边缘检测方法被应用于检测实际工程的图像边缘，检测到的边缘区域在亚像素之内；修正的Hough 变换算法也被运用于相应工程的直线拟合，与传统的Hough算法相比，结果表明其速度更快、精度更高，抗干扰能力更强，其拟合直线的极径精度可达到0.1个像素，极角精度可达0.01度。

Aimed to the problems of difficult installation and low measurement accuracy in high moisture, the grain moisture sensor has improved from the traditional parallel polar plate probe to plane polar plate probe. The plane polar probe with protect pole was used to decrease the affect of the stray capacitance and interference, and some critical parameters of the plane polar probe that influenced sensitivity and accuracy of the sensor were proposed. The finite element method was used to analyze the electric field and capacitance of the plane polar probe.

针对谷物水分传感器平行极板探头安装难度大、高水分测量精度低等问题，将平行极板探头结构改进成为平面极板探头结构，并且通过增加保护极板减小干扰和杂散电容的影响，提出影响传感器敏感性、精度的平面极板探头的几个参数，采用有限元分析方法较精确分析了探头的电场分布和电容。

It has been a big challenge to improve the measurement accuracy and the positioning accuracy of positioner.

如何提高平台测量系统的精度，从而提高平台的定位精度是目前超精密工作平台所面临的一大难题。

The results show that the modified GM (1, 1) has the most satisfactory accuracy, while power function model and exponent function model are moderate in accuracy and hyperbolic model is relatively worse than the aforementioned ones.

结果表明，修正的GM(1， 1)模型模拟的荷载－位移曲线精度最高，幂函数模型和指数函数模型次之，双曲线模型相对较差。

For the accuracy and complexity of different complexity analysis method are different, firstly, the ultimate strength of pressure hull is mathematically analyzed and calculated by ANSYS, and then the empirical formulation is modified according to the modified factors, which are gotten by the accurate model of ANSYS. So that the calculation accuracy will be improved and the calculation time will be reduced after the analysis model of pressure hull structure is integrated.

不同分析方法的准确度和复杂度不同，本文采用ANSYS这种高精度分析方法对于载人球壳的极限强度进行计算，并根据所得到的计算结果来对采用经验公式方法得到的结果进行修正，使得多学科设计优化模型中集成修正后的载人球壳结构分析模型以提高计算结果的精确度和降低运算时间。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"