查询词典 random deviation

This method has a number of weaknesses such as random deviation, no quantitative analysis, and a longer testing cycle. The latter is most used to check the crack and slag inclusion inside the solid rocket engine.

该方法存在误检率高、无法定量分析、检测周期长等缺点；另一种是X射线投影技术，主要用于检测发动机第二、三界面的脱粘及药柱内的裂纹、夹渣等缺陷。

Its results show that in order to maintain desired BER performance the fixed estimalion error should be less than 0.07 dB, thd deviation of random estimation error should be less than 0.6, and the time-delay should be controlled within 0.001/v/λ(subscript c.

分析和仿真结果表明，为了维持系统所需的BER性能，固定估计误差值应小于0.07dB，随机估计误差的离差要低于0.6，而时间延迟应控制在0.001/v/λ

In the research of normal pricing decision, study the methods of production determining and pricing upon condition that demand function permits random deviation and that consumer tastes may be uncertain, On the assumption that p...

从需求不确定情形下一般厂商产品定价决策研究及其风险度量到垄断厂商差别定价决策及其风险度量研究，在对需求不确定情形下一般厂商产品定价决策研究中，假设企业产品产量可能不等于销量，分两种情形讨论了需求可以发生随机扰动情形下和消费者口味不确定情形下一般厂商产量决策和定价问题。

According to the characteristics presented by armed helicopters during cruising or searching for ground targets, this paper has established the mean-square deviation stationary random model of helicopter tracks. It is an important method to decorrelate the measure noise by estimating the parameters of the color noise online. Kalman filtering and forecasting have been made with helicopter tracks. The simulated study has been carried out on helicopter tracks under the condition of color noise. It is very difficult to get an accurate and reliable prediction when the data is very limited. The paper make use of the theory of grey system to resolve the problem of prediction of helicopter tracks, establishing the GM model of grey systems and the cumulative residual error model of n degree, then correcting the GM forecast model. In the period of sampling, GM model and residual error model have been established on line to improve prediction precision.

结合武装直升机在巡航或搜索地面目标的特点，给出直升机航迹模型为协方差平稳随机模型，在线估计有色噪声参数，对测量噪声去相关，对直升机航迹进行卡尔曼滤波与预估，最后对有色噪声条件下的航迹进行了仿真研究；在数据非常有限的情况下，准确地预测又很困难，本文提出了用灰色系统理论解决直升机航迹预测问题，建立了灰色系统GM预测模型和n次累加残差模型并对GM预测模型进行修正，在每个采样期间内，实时在线建立GM预测模型和残差模型以提高预测精度。

Eight hierarchical clustering methods including single linkage method, complete linkage method, median linkage method, centroid method, unweighted pair-group average method, Wards method, flexible-beta method and weighted pair-group average method were combined with three sampling strategies, random, preferred and deviation sampling to develop 24-core collections.

川最短距离法、最长距离法、中间距离法、重心法、不加权类平均法、离差平方和法、可变法和加权配对算术平均法等8种系统聚类方法，结合随机取样法、优先取样法和变异度取样法等3种取样方法，发展了24个水稻核心种质库。

Using the analysis of the distribution indexes method, the results indicated that all distribution indexes of Halostachys caspica population, Haloxylon ammodendron population and Haloxylon persicum population accorded with congregated pattern within the scales of 1m×1m、2m×2m、4m×4m、8m×8m、16m×16m、32m×32m. And the T-test evidenced that the deviation from random pattern was obvious in 1~32m scale.

通过分布型指数法分析得出，在1m×1m、2m×2m、4m×4m、8m×8m、16m×16m、32m×32m的空间尺度上，盐穗木、梭梭、白梭梭种群的各项分布型指标均符合聚集分布，并且由扩散系数偏离随机分布的差异性t值检验验证了种群在1～32m尺度上显著偏离随机分布，呈聚集分布。

MethodsA phage random twelve peptide library was screened 4 times by monoclonal antihuman FGF7. ELISA staining examination was performed to choose monoclonal phages at random. Also, DNA extracted from phages with better bindingactivity was sequenced and genecompared.

方法以hFGF7单克隆抗体为靶，进行4轮生物淘选噬菌体随机十二肽库；随机挑取单克隆噬菌体，应用ELISA方法检测单克隆噬菌体的结合力，对结合力较好的单克隆噬菌体提取噬菌体DNA，进行测序，并行序列分析。

Random fuzzy optimal design ; multiple random fuzzy factor ; approximate measurement ; practical calculation.

随机模糊优化设计；多随机模糊因素；近似测度度量；实用计算

The random spline plays very important role in the approximation and fitting of random function.

随机样条在对随机函数的逼近与拟合中都有重要作用。

Suppose is two-dimension random variable, for arbitrary real value ,call distribution function for two-dimension random variable or unity distribution function .

Definition 3.2 设是二维随机变量，对于任意实数，称二元函数为二维随机变量的分布函数，或称为的联合分布函数。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。