查询词典 error model

The second model is based on error in the maximum direction of the curve.

给出了以缓和曲线法线方向的中误差表示误差带宽的εσ模型，以及以最大方向误差表示带宽的εm模型的计算方法。

Without considering testing error ,we set up a group testing model in the presence of zero observations and derive maximum likelihood estimator and method of moment estimator of parameters.

在不考虑检验误差的情形下，建立一个含零观测值的模型并得到参数的最大概似估计量与动差估计量。

The mean square error of strength is a measurement of rock mechanics. A new model about relation between strength of rock and its sample size is set up.

研究表明，上述损伤力学模型可以近似地反映岩石的本构性能，强度分布方差是岩石材料物理性能的一种量度。

This thesis compared various related literatures and chose the RAS method with the least measurable error to set up the regional input-output model and to assess the linkage contributions and the economic multiplier impacts.

为分析区域经济效益，本研究藉由相关研究文献进行比较，选择以推估误差最小之RAS法作为区域系数推估方法，进行区域产业关联效果与经济乘数分析。

The characteristics of the new model were shown. The influences of measuring error and number of measuring points were analyzed.

分析了该模型的特点，说明了测量误差以及测点数对预测结果的影响。

The influence of measuring instrument error and unknown disturbance to the system is considered fully in the model.

之后采用卡尔曼滤波算法，对静平台中心点的位姿进行重新估计，并同时求得该点的速度和加速度。

Using the model, the thermal error can be predicted without measuring the temperature field of machine tool.

作者研究了一种预补偿方法，其核心是—基于机床主轴转速的热误差自回归模型，通过主轴的转速来预测热误差。

The approximation error is defined as the integral of the minimum distance between each surfel on the original model and the fitting surface.

算法中的逼近误差定义为原始模型各面元到拟合曲面最小距离的积分。

The mathematical model can work out the minimum zone solution of the cylindricity error with arbitrary position in space, and there are no special requirements in choosing measurement points.

所建立的目标函数基于圆柱度误差最小区域定义，可以评定空间任意位置圆柱度误差的最小区域解，对测点无特殊要求。

The representative minority cultural relic-pottery relic of Buyi minority and the two wooden masks is taken as the research object. Firstly, Hiscanner laser scan detector was adapted for data collection, and then obtain point cloud data which could be recorded on disc for permanent saving was obtianed; Furthermore, the new popular reverse engineering software Geomagic for some disposals of point cloud data was adopted in data condensing, data mending, data filtering, feature line picking up to obtain NURBS surfaces; and then the error between the reconstructed CAD model and the point cloud data was evaluated to guarantee the precision of surface reconstruction to keep the relics keep its original appearance. In the end, the NURBS surfaces are imported to 3D software Solidworks and entities of CAD are generated by surface sewing, mold loft and ablating and other instructions.

选用有代表性的贵州少数民族文物―布依族酒壶、水壶以及木制傩戏面具作为研究对象，采用Hiscanner激光扫描测头对其进行数据采集，扫描得到的点云数据可刻录到光盘上作为文物数据永久保存；更进一步地，采用目前流行的逆向工程软件Geomagic studio对点云数据进行数据精简、数据滤波、数据修补、提取特征线等处理后得到NURBS曲面；为保证曲面模型重建的精度，在曲面重建模型后对其误差评价，通过控制误差的方式指导曲面模型重建，使重建的文物曲面模型能真实完整地反映原状；最后，在功能强大的三维造型软件Solidworks中导人重构的NURBS曲面进行曲面缝合、放样等，将其生成实体CAD模型，并对模型的局部特征进行适当的再设计以实现文物实体模型的优化。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。