standard deviation的例句大全

Blood Pressure Weighted Standard Deviation and the Target Organ Damage in the Very Elderly with Hypertension

高龄老年原发性高血压患者血压24h加权标准差与靶器官损害的相关性

Using mean and standard deviation to describe abnormal distribution is the principle problem of data description.

用均数和标准差描述呈非正态分布的数据是描述数据时存在的首要问题。

Recoveries of the standard sample ranged from 99.5 ± 0.75% to 93.8 ± 1.3%, method precision was 0.0479, standard deviation was 1.2%, test scope ranged from 0.2 to 1.8 mg/ ml.

本文首次利用双缩脲法建立了快速测定奶粉中肽含量的方法，标样回收率99.5±0.75%～93.8±1.3%，精密度0.0479，标准偏差1.2%，适用范围0.2～1.8mg／ml。

The correlation coefficient for the thebaine was greater than 0.999 2. The average rate of recovery for the reference substance was 100.08% and the relative standard deviation was 0.48%.

样品中蒂巴因的平均回收率为100.08%，RSD为0.48%。

By preliminary experiment, we analyzed the credibility, validity, difficulty, discriminate validity and so on, and statistically analyzed the testing score by average value, standard deviation, test of normality.

进行预试验，分析护理标准化病例试卷的信度、效度、难度、区分度等，并对学生考试成绩进行平均分、标准差、正态性检验等统计学分析。

Small Target Detection Within Sea Clutter Based on Amplitude Standard Deviation

基于幅值标准偏差的海杂波背景下小目标检测

By computing the standard deviation of water depth, the area of unique terrain feature was chosen as the matching area.

通过计算不同区域的水深标准差，选择地形特征独特的区域作为适配区域。

We process the data of normal group with independent sample t test, and operation group by paired t test. Results: All indexes were calculated the mean and standard deviation.

所得数据正常组采用独立样本t检验，手术组采用配对t检验。结果：所有指标均计算得出均值及标准差。

Using the gray histogram statistical moment method to calculate six characteristic parameters such as mean value, standard deviation, the third moment, uniformity, normalized coefficient, entropy.

利用灰度图像直方图统计矩法，选取了均值，三阶矩，标准偏差，归一化系数，一致性，熵六个特征参数。

Based on the two dependencies, the paper proposes a new threshold function and researches the relation between the threshold and image noise standard deviation.

根据这两种小波系数关系，提出了一种阈值函数，并研究了阈值和图像噪声的关系。

The method has been applied to the determination of tellurium in lead tellurium residue sample with recoveries in the range of 98.0%~ 102.3% and relative standard deviation in the range of 0.4%~ 0.8%.

ml-1。本方法用于铅碲渣中碲的测定，回收率为98.0%~102.3%，相对标准偏差为0.4%~0.8%。

Average, minimum, maximum, and standard deviation response time or connection time

平均、最小、最大，以及标准偏差应答时间或者链接时间

It only needs to compute standard deviation of gray within sampled pixel area for extracting feature points with our approach. It can be avoided that the limitation to determine threshold value by tentative method according to some prior information on processing image.

该方法提取特征点，仅需对抽样象素区域进行灰度标准差分析，避免了提取图像特征点，根据被处理图像的一些先验信息，利用试探方法确定阈值的局限性。

We improve Hurst index. Based on time series standard deviation. DFA is spreaded into dynamic recursion algorithm.

基于标准差时间序列改进Hurst指数，将DFA推广为动态递推算法。

Results show that the CPU time and its standard deviation by R-SDR is 1.2 and 1.1 times of those by PathFinder, respectively.

实验结果表明：R-SDR的布线时间及布线时间标准误差分别为PathFinder的1.2倍及1.1倍。

Besides, the power spectral density of the images, the standard deviation of the density, and the unevenness are also changed with temperature rising, it is consistent with the experimental results of tissue protein solidification in microwave ablation.

此外，图像功率谱密度、密度标准偏差、不均匀度等也随着组织的温度升高而变化，这与高温消融情况下组织蛋白固化的实验现象相符。

The standard deviation of the determination of Cr(ⅳ) in Daming lake water is 3.3 × 10~ (-8)%. The recovery is 90.0%~ 114.0%.

测定了大明湖水中的Cr（Ⅵ），相对标准偏差1.9%，回收率90%～114.0%。

It revealed that the product of the standard deviation of the estimated sampling variance and square root of the number of samples was a constant.

实验也证明，取样方差估计值的标准偏差与样本数目的平方根之积可近似为一常数。

On the basis of the thermal fluctuation theory, the standard deviation of a thermal intrinsic fluctuation phase noise in optical fiber is analyzed and calculated in detail.

根据涨落的热力学理论，详细分析和计算光纤中热力学本征涨落相位噪声的方均值。

As a practical example, the mean value and standard deviation calculation formulas of 30 thermal performance design magnitudes of straight blade stages are given.

文中给出了汽轮机直叶片级30个热力设计量的均值和标准差的计算公式和应用实例。