渐近效率

Contrary to popular kernel regression methods, it has many advantages, such as: higher efficiency and stronger asymptotic adaptation design capacity.

与流行的核回归方法相比，它有诸多优点，诸如：较高的渐近效率和较强的适应设计能力。

Finally, we give some conjectures which could be used to obtain the closed-form expression for the asymptotic construction efficiency.

最后我们提出一些猜测可用来获得渐近建造效率的数学表示式。

AME (Asymptotic Multiuser Efficiency) is an important factor to evaluate multiuser detector. From this point of view, performance comparison among multistage multiuser detector, decision feedback multiuser detector and linear decorrelating multiuser detector is done here.

评价多用户检测器性能的一个重要的指标就是渐近多用户效率，本文第一次从渐近多用户效率的角度分析对比了多级多用户检测器、判决反馈多用户检测器和线性解相关检测器的渐近多用户效率。

The clutter is assumed to be of Weibull distribution or characterized by a log-normal distribution. It is presented that a detailed derivation of the formula about asymptotic relative efficiencies of generalized sign test and Mann-Whitney detector are compared with optimum linear parametric detector.

选择韦伯分布和对数正态分布为两种非瑞利杂波模型，推导广义符号和Mann-Whitney检测器相对于最佳线性参量检测器的渐近相对效率的计算公式。

So, we discuss the asymptotically best linear unbiased estimator for the logistic population based on the selected order statistics, give the pr.

为缓解这一困难，本文讨论利用样本分位数的Logistic总体的近似最佳线性无偏估计，给出估计量的大样本性质，以及样本分位数不超过10情形下，估计量有渐近最大相对估计效率时样本分位数的选取方案等。

Firstly, we consider SIQR epidemical models with continuous and pulse vaccinations; the reproduction numbers have been obtained for those models; by using Dulac function, we prove the global stabilities of equilibrium of SIQR model with continuous vaccination. In the SIQR epidemical models with pulse vaccinations, we have also discussed the existence of the infection-free periodic solution, the global stabilities of the infection-free periodic solutions, and the effectiveness of pulse vaccination and continuous vaccination policies has been compared for the two models.

文中首先考虑具有连续免疫接种和脉冲免疫接种的SIQR传染病模型，分别获得了它们各自的基本再生数；利用Dulac函数方法证明了具有连续免疫接种的SIQR模型无病平衡点的全局渐近稳定性；在脉冲免疫接种下SIQR传染病模型里，讨论了无病周期解的存在性，证明了该周期解的全局渐近稳定性，并且对连续和脉冲接种下的SIQR传染病模型的接种效率进行了比较。

By using the first symbol of every observation window as pilot symbols, the transmit efficiency approximates to 1. Moreover, the proposed algorithm does not require the feedback channel. The fast search for the maximum-likelihood solution can be done by sphere decoding aligorthm.

本算法只需获取每个观测窗口的第一个符号，以该符号为导频符号，其传输效率渐近为1，并且不要求系统具有反馈信道，算法中最大似然解的快速搜索可以通过球形译码来实现。

We shall conclude that autocorrelation fluctuate from period to period, and amplitude of correlation variation is decreasing and tending to zero. This implicate that the markt is coming more efficiency with the lapse of time, and the market efficiency is undulatory authentically.

检验结果发现，序列相关系数呈现波动性特征，但波动幅度随着时间的推移越来越小，向零收敛，这一方面证明市场效率的波动性，另一方面说明市场的渐近有效性。

Due to the violation of the PA condition, the distributions of Wald statistics and Score statistics based on GLS estimators are noncentral $\chi^{2}$ distributions. The efficiency of testing based on the GEE method is largely influenced.

由于PA条件不成立，回归系数的GLS估计不再是渐近无偏的，构造的Wald和Score统计量的分布不再是中心卡方分布，从而对于检验的效率也产生了严重影响。

Due to the violation of the PA condition, the distributions of Wald statistics and Score statistics based on GLS estimators are noncentral x~2 distributions. The efficiency of test based on the GEE mothod is infulenced.

由于PA条件不成立，回归系数的GLS估计不再是渐近无偏的，从而得到的Wald和Score统计量的分布不再是中心卡方分布拉，从而对于检验的效率也产生了一定的影响。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。