计算误差

The article adopted a new filtering-cloud composing technology used to monitoring drought,analyzed the property of Ts—NDVI characteristic space and the TVDI's indicating drought ability, put forward the TVDI compute model, grade standard, and the impact estimation method. The result indicated: 1 the decade-composed data obtained by the maximum surface temperature principle has better ability than the composed data obtained by the maximum NDVI on monitoring drought; 2 in the Ts-NDVI characteristic space,the dry side and the wet side almost are horizontal lines when the NDVI is on the small side, the temperature difference is about 45℃; 3 the TVDI has inequable level on monitoring drought as its value, the less TVDI indicates without drought occurrence, the bigger TVDI shows the drought certainly happened, the unsure drought conclusion mainly comes from the middle TVDI; 4 the monitored results of Sichuan hot-drought in 2006, obtained by the remote sensing and by the climate index, are basically consistent, the estimating error on the bearing drought crop area and on the drinking trouble population is within 10%.

采用了干旱监测合成滤云新技术，分析了Ts—NDVI特征空间属性和TVDI指数干旱监测能力，提出了四川伏旱TVDI计算模型、分级标准、和影响评估方法，结果表明：1按最大地表温度原则得到的旬合成数据比按最大植被指数原则得到的旬合成数据具有更强的旱情监测能力；2在Ts—NDVI特征空间中当NDVI较小时干湿边几乎同为水平直线，两者相差约45℃；3TVDI指数因其大小不同而对旱情的监测能力也不一样，较小时说明没有干旱发生，较大时则一定有干旱发生，中间段对干旱的监测具有不确定性；42006年四川伏旱遥感监测与气候监测结果基本一致，农作物受旱面积与饮水困难人口数估算误差在10%以内。

we carry on logistics demand forecast by taking time-series model and explain its application to logistics demand forecast by justment of data stationary, stead, standardization, modeling, discernment, making steps, parameter estimate and examination to predict, error and calculation of confidential interval.

本文采用时间序列模型进行物流需求预测，用实例从数据平稳性的判断，平稳化，标准化，建模，经模型的识别、定阶、参数估计和检验，到预测及误差和置信区间的计算，详细地说明了时间序列模型在物流需求预测中是如何应用的。

The virtual platform is tested by experiments of measuring artificial defects in the mild steel sheet workpiece. And the results show that its functions, including signal channel controlling, signal collection, magnetical flux density curves and butterfly curve, data accessing and signal quantifying and display, can be realized by using the virtual panels; the quantifying precision of this system is about 85 percent; and the shape inversely calculated is similar to the real shape of the defect.

通过实验测试得到如下结论：对该虚拟仪器面板的操作能够有效地实现通道控制和信号采集、磁通密度曲线及蝶形图的实时绘制、数据的存取以及信号的定量计算和显示等功能；具有较高的检测精度，缺陷智能量化相对误差不超过15%；检测反演所得缺陷形状能够与缺陷的真实外形相符，满足可视化检测要求。

The simulation and calculation of three crystalsIG,Ce∶YIG and YIG by Jones matrix are carried out, and the directionality of magnetooptic glass of MR4 is tested.

利用琼斯矩阵对三种晶体实例IG、Ce∶YIG和YIG进行误差计算和仿真，并对MR4磁光玻璃的方向性进行实验测试，理论和实验都证明采用三维测量的方法是可行的。

The acid gas and nonacid gas are calculated with established model.The calculated results show that the average relative deviation of temperature for acid gas hydrate production is 0.33%;for nonacid gas,the relative deviation is 0.113%.

通过检验：该模型在预测酸性气体水合物生成温度时的平均相对误差为0.33%；对非酸性气体的偏差仅为0.113%，算例表明本模型计算方法简单，使用十分方便，具有较高的精度，能够满足工程要求。

However, such tidal overheight is often ignored in the current regional numerical simulation due to intensive computational requirement. Only the mean sea level is used as the fixed seaward boundary, which may wrongly predict the groundwater table position. Therefore, we aim to determine an equivalent seaward boundary through numerical modeling. The equivalent seaward boundary takes into account the tide-induced overheight effects.

然而，由于潮汐动边界处理的复杂性而导致巨大的计算量，在现有的区域地下水数学模型中，潮汐引起的海平面波动通常被忽略，仅仅以平均海平面高度作为模型的海岸边界条件，其预测出的地下水水位位置与实际情况可能会有一定的误差。

According to the character and advantage of partitional modeling, we construct the SD model of anaerobic reactor which is fed by glucose, and used a different calculation way for different blocks. Comparing with the lab data, errors between SD model, test data, and Andrews' model is less than 10%.

根据分块建模的优势及特点，对模型中的3个子系统采用不同的计算方式，通过对比模拟结果表明，SD模型静态模拟结果与实验数据、传统结构模型模拟结果之间的误差0%，动态模拟结果与实际趋势一致，说明SD模型的模拟结果是可信的。

Using the complex optimization method, the planeness error value can be evaluated quickly and accurately on a microcomputer.

利用复合形优化方法，在微型计算机上可迅速、准确地求出此准则下的平面度误差值。

And draw the conclusion: It is feasible for the prefigurative deviation and error adjust used in PC rigid frame bridge construction control to use the calculation model and program brought forward in this papers.

通过与实际施工数据及测量结果作分析比较，得到结论：运用本论文的计算模型和程序对预应力混凝土连续刚构桥施工控制过程进行结构分析与误差调整是可行的。

In this papers the technique of the structure calculation and error adjustment measures used in bridge construction prefigurative deviation control was researched based on the construction control and monitor project of Ma-Shui river bridge.

本文主要结合马水河特大桥的施工监测监控项目，研究高墩大跨度预应力混凝土连续刚构桥施工控制的结构计算和误差调整方法[2]。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。