累积量

A 2D harmonic model based on the quaternion was constructed,and a special four-order cumulant was defined.

构造了合适的基于四元数的二维谐波模型，根据此模型定义了特殊的四阶累积量切片，分析了加性高斯在有色噪声中的二维三次非线性相位耦合。

Then cumulant invariants are used to classify bandlimited MPSK signals. The method can work with lower SNR.

并利用此基带序列的高阶累积量构造分类特征不变量，在宽信噪比范围内实现了带限MPSK信号的调制分类。

Based on higher-order cumulant of the received data of array, we discuss theproblem of joint parameter estimation of near-field signal sources.

研究了基于阵列接收数据的高阶累积量的近场信号源参数联合估计问题。

According to the analysis and experiment results, the classification of left or right hand movement imagination based the 4th order cumulant was designed.

在此基础上，进行了基于脑电四阶累积量的左右手运动意识识别和分类研究，实验结果表明，正确识别率能达到87.5％。

A new cumulate extrema based algorithm,for blind deconvolution of the sandwich nonlinear system,is developed.

提出一种新的基于累积量极值的非线性系统盲反卷积算法。

The results indicate:In normal temperature condition,the amount of ethene producted by the fruit which kept with...

结果表明：在常温条件下，以蚕茧作为保鲜剂的水果比其他条件下的乙烯累积量少，好果率高、果实硬度高、贮藏期长；低温有明显的保鲜效果。

An approach for structure dynamic modification based on an exact solution is proposed.

提出了一种高阶累积量在结构诊断中的应用的方法。

Methods Animals were randomly and equally divided into five groups: saline control group, positive drug control group, low-dose, medium-dose and high-dose crocetin group. Animals were anesthetized with urethane (1.2 g/kg), then followed by the perfusion of aconitine (10 μg/mL) through caudal vein in rats, or of ouabain (9 μg/mL) through external jugular vain in guinea pigs in a constant velocity of 0.1 mL/min, and the emergence time of ventricular fibrillation, ventricular extrasystole, ventricular tachycanlia and cardiac arrest were then detected and recorded. The recorded time was then translated to the cumulated amount of aconitine and ouabain. Experimental arrhythmia was induced by rapid injection of 4% CaCl2 (140 mg/kg), and the emergence time, persistence time, incidence and death of arrhythmia after the administration were observed.

将实验动物随机分为生理盐水组，阳性药物对照组，藏红花酸高、中、低剂量组，SD大鼠采用1.2 g/kg乌拉坦麻醉后，从尾静脉匀速(0.1 ml/min)灌注10μg/ml乌头碱溶液，豚鼠麻醉后从颈静脉匀速(0.1 ml/min)灌注9μg/ml哇巴因溶液，观察出现室性期前收缩、室性心动过速、室颤和心脏停搏的时间，然后换算成乌头碱和哇巴因的累积量；快速推注4%氯化钙(140 mg/kg)诱导大鼠心律失常，观察给药后心律失常出现时间、持续时间、心律失常发生数及死亡数。

In test data modeling, the test data distribution was analyzed, the models of these data were set up respectively based on the hypothesis of Gaussian stationary process and non-Gaussian process.

对试验数据建模时，根据对火控动态精度误差数据的分析，分别基于高斯平稳随机假设和非高斯随机假设建立AR模型，两种模型性质不同，后者采用高阶累积量估计模型参数。

During the early period of growing season, the increase rate of Salviae miltiorrhizae root weight was the highest, and it appeared the lowest at the end of growing season.

通过砂培试验研究了铜、锌对丹参根重，丹参根中3种丹参酮的含量及其累积量的影响以及铜、锌在丹参体内的迁移与分布规律。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。