In this paper, a new distribution function including valley-orbit splitting is established by introducing a new partition function and an ensemble average increment of all split donor levels. 通过引进电子在分裂能级上的配分函数和综合平均能量增量,得到了适用于施主能级分裂的分布函数。
Constant dollar and current cost accounting ensemble average 现行价值与统一币值会计集平均;统计平均值;系综平均值;总体均值
It is proposed that the ratio of the fluctuation average to its rms value be implemented to inspect its random degree if the time-average is adopted as the ensemble average. 指出时间平均和样本平均作为近似系综平均可能存在的问题。对前者,建议用扰动量的统计系综平均值与它的均方根值的比值,来判断扰动量的随机性程度;
However, there is not any report on the relationship between grain edge length and its neighboring ensemble grains edge length average in the polycrystal. 三维个体晶粒棱长是描述晶粒尺寸的重要参量,多晶体中晶粒及其邻接晶粒的棱长之间的关系至今仍是空白。
The Argument whether Sampling Distribution of Expectation of Samples Approximately Obey Normal Distribution; ensemble average 关于样本均值的抽样分布能否作正态近似的探讨集平均;统计平均值;系综平均值;总体均值
Results showed that at present in the university student suitable proportion and quantity of overweight or obese students created the body fat ratio ensemble average to be high. 结果显示,目前大学生中,超重或肥胖的学生占有相当的比例,体脂百分比总体均值偏高。
It takes a long time to get the SNR curve of a simplest bistable system because the ensemble average must be applied to the system. 然而,由于要进行系综平均,即使要得到最简单的双稳态系统的信噪比曲线也需要很长时间的运算。
Based on examples, introduces significance of difference test method between sample average and ensemble average in cases of totality submission normal distribution ( variance known of unknown big, small sample) or totality non-normal distribution in education experiment; 结合实例,介绍了教育实验中总体服从正态分布(方差已知或未知,大、小样本)或总体非正态几种情形下样本平均数与总体平均数间差异显著性的检验方法;
Ensemble Average Technique for Five-Hole Probe Measurement 适合于五孔探针测量的集平均技术
By using ensemble average theory, we have calculated the fluctuation of the optical field intensity which was caused by every laser pulse in ringdown cavity of ringdown absorption spectrum, and the calculated result was also discussed. 采用系综平均理论,计算了脉冲激光作为激发光源时,激光振铃吸收光谱技术中振铃腔内每个脉冲引起的光场涨落,并对计算结果进行了讨论。
An improved ensemble average algorithm is studied and the computation speed is greatly improved. 还提出了一种改进的整体平均算法,使得该不变量计算速度大为提高。
Angular speckle correlation is a method of surface-roughness measurement about amplitude parameter independent on spacing characteristic of the surface roughness profile. The mathematic model of this method is usually based on ensemble average. 角度散斑相关是一种不受表面粗糙度轮廓的间距特性影响的粗糙度幅度参量测量方法,它的数学模型通常建立在集平均的基础上。
Application of M-sequence Correlation Technique and Ensemble Average Requirement in Noisy Environment 在强背景噪声条件下M-序列相关技术的应用和采样平均数的选定
Considering various uncontrollable factors in the living environment, we use the ensemble average to give the simulation of quasi-species and error threshold. 考虑到有机体的生存环境通常存在许多不确定因素,我们用系综平均的方法给出准物种和误差阈的数值模拟。
A new method for detecting the initial phase of the fundamental frequency component of a periodic signal mixed with stationary random noise by using the Morlet wavelet transform and ensemble average is presented, which provides a more effective means for the fault location in rotary machinery. 给出了采用Morlet小波变换并结合集合平均检测叠加有平稳随机噪声周期信号基频初相位的方法,为旋转机械故障定位提供新手段。
Using microscopic sdIBM-2 formalism and procedure of canonical ensemble average, finite-temperature specific heat of nuclei is calculated. The existence of peaks in the specific heat shows the occurrence of phase transition of thermal excitation mode. 应用微观sdIBM-2形式体系、正则系综平均法和鞍点近似,能计算出核在有限温度下的比热,比热峰的存在表明核发生了热激发相变。
Through simulating the speckle intensity distribution in the far field of a random rough surface, we compute the degree of angular speckle correlation by substituting spatial average in speckle pattern for conventional ensemble average, and determinate the surface roughness by the mathematic model of ensemble average. 通过模拟计算随机粗糙表面的远场散斑场,以散斑图面上的空间平均代替常规的集平均来计算角度散斑相关系数,并应用集平均的数学模型反演粗糙度参量。
A method of quantitative precipitation forecasts for short-range ensemble forecast is presented aiming at inability of ensemble average method to extreme weather event. 针对短期集合预报中集合平均等方法对极端天气事件预报能力低下的缺陷,提出一种定量降水预报集合方法,简称两步法。
This paper demonstrates that the influence of high back-ground noise will be efficiently reduced in acoustic measurement using M-sequence correlation technique by ensemble sampling average. 研究表明,在应用M-序列相关技术进行声学测量时,通过多次平均的方法可以有效地抑制背景噪声的影响。因而,即使在强背景噪声条件下,使用这种测试技术仍可得到满意的测量精度。
The results show the results of ensemble forecast are better than that of each member's, the simple average of ensemble members 'prediction results can improve forecast accuracy; 结果显示集合预报在总体预报效果上比各个集合成员的预报效果好,简单的集合平均就可以提高模式形势场和降水要素场的预报准确率。
Formulas are derived for the ensemble average of the pulse power and the rms pulse width. 得到了在光纤中传输的脉冲光功率的系综平均值和输出脉冲宽度的均方根值的近似解析公式。
The gradient estimation in the proposed algorithm is improved by using the weighted time average instead of the instantaneous value to approximate the ensemble average. 在本文中,所提算法的梯度估计用加权时间平均值来代替瞬时值去近似总体均值。这样能较好地消除误差通道辨识环节和主动控制环节之间的相互影响,从而提高系统的总体性能。
According to the characteristics of ensemble average precipitation forecast, the average precipitation data were revised and then adopted to simulating the flood process, resulting in a significant improvement of the effect. 同时,根据集合平均降水预报的特点,对集合平均降水数据进行修正。并将修正后的集合平均数据模拟洪水过程,其效果有了很大的改善,具有较好的效果。
Using molecular dynamics and numerical simulation methods to describe the molecular structure, and get the macro-rheological properties of polymers through the ensemble average. 运用分子动力学模型和数值模拟方法能够直接描述分子构型,并通过系综平均得到聚合物的宏观流变特性。