并通过分段线性拟合的方法,计算了幂指数的值。
Two power exponents are estimated by using linear fit in two segments.
番茄种胚水势与含水量的关系呈幂指数的正相关。
The water potential of embryo was positively correlated with its moisture content.
并给出了膨胀比与喷嘴出口马赫数之间的幂指数关系。
A power correlation between expansion ratio and Mach number at the nozzle outlet was found.
建立了某型号鼓式制动器平均制动力矩同速度和压力间的幂指数模型。
A power index model is formed which describes the relation of drum brake average torque with speed and pressure.
火山岩气藏启动压力与束缚水饱和度和空气渗透率均呈幂指数关系;
The starting pressure of volcanic gas reservoir shows exponential relationship with irreducible water saturation and air permeability.
给出了所有准素子群的正规化子有素数幂指数的有限群的幂零长的界。
The bounds of nilpotent lengths of finite groups with normalizers of primary subgroups having prime power indices are obtained.
本文研究了厚度呈幂指数规律变化的变厚度圆饭的非线性强迫振动问题。
In this paper, the nonlinear forced vibration of circular plates with thicknesses varying according to power indexes are studied.
能谱的幂指数随源耀斑的磁方位角而增加,分布有明显的东西不对称性。
The power index of spectrum increases with the magnetic azimuth of source flares, the distribution of which shows a marked east-west asymmetry.
采用幂指数法结合模糊权重评价法计算系统总体效能,并以此作为优化的目标函数。
As the target function of the optimization model, the system entire efficacy was calculated by power index and fuzzy weight methods.
聚合物分子在四氢呋喃稀溶液中的幂指数为0.14,说明该聚合物具有支化结构。
The power index was 0.14, which indicated that the polymer had branched molecular structure in dilute solution of tetrahydrofuran.
利用测得数据,建立了某型号鼓式制动器平均制动力矩同速度和压力间的幂指数模型。
After analysis of measurement data, a power index model is formed which describes the relation of drum brake average torque with speed and pressure.
通过研究钨浓度的对数值与扩散深度幂指数的关系,得到了钨动态扩散动力学的类型。
Through studying the relation between logarithm of the concentration and power of the penetration distance, the kinetics type of diffusion along dislocation has been found.
在驱油过程中,驱油剂的稠度系数沿渗流方向呈指数规律减小,而幂指数则以线型规律递增。
In chemical flooding, consistency coefficient of the oil displacement agent declines exponentially, the power law exponent increases linearly in the direction of percolation flow.
揭示出幂律特性在人类社会行为中的普适性,指出幂指数的不同和名人所处的社会环境有关。
It is revealed that power law property is universal in human social behavior. Meanwhile, parameters differ from each other due to the various social environments those celebrities lived in.
简要介绍了评价舰炮武器系统性能的幂指数法和一种特殊的非线性规划方法——几何规划方法。
In this paper, a optimization method of naval gun weapon system performance is presented based on the polynomial mode of power index method and the solutions concision geometry programming method.
在这两种应力条件下,应力导致的漏电流与时间的关系均服从幂函数关系,但是二者的幂指数不同。
Under both stress conditions stress induced leakage current follows a power law against stress time with different power factors.
本文提出了FWG1 幂指数递减开发模型,提出了开发速度,采出程度等开发指标的数学关系式。
A mathematical expression for such development indexes as recovery rates and rocovery percent of reserves is established on the basis of the FWG1 exponential decline development model.
发明对数是为了简化繁琐的计算,因为用幂指数的相加或相减可以等同于它们的基数的相乘或相除。
Logarithms were invented to simplify cumbersome calculations, since exponents can be added or subtracted to multiply or divide their bases.
结果发现幂流体的幂指数、颗粒间最小间隙以及颗粒的大小都是流体压力和颗粒间切向阻力的重要因素。
The results indicate that the power index, the minimum gap width and the size ratio are the main factors affect the magnitude of the pressure, the force and the moment.
并在系统的扩张状态观测器和非线性状态误差控制器中引入非线性幂指数函数,使系统运算变得更加简单。
A nonlinear exponential function is applied to ESO and nonlinear state error feedback (NLSEF) controller, and it makes the system realize easier operation.
这仍是一个年轻的研究领域,对幂指数定律模式的研究也许是答案的一部分,但考虑和讨论潜在影响还为时尚早。
This is still a young field of research, and the study of power law patterns may be part of the answer, but it isn't too early to consider and discuss potential implications.
通过检验网络的度分布的熵、幂指数和顶点的最小度之间的关系,获得了无尺度网络对于随机错误的最优设计。
By examining the relationship of the entropy of the degree distribution, scaling exponent and the minimal connectivity, we get the optimal design of scale-free network to random failures.
在低场范围中,电流随时间的变化,可以是模拟的幂指数的衰减,并与所施加的电场的增加的衰减系数拟下降。
In low field range, the change of current with time can be simulated by attenuation of power index, and the attenuation coefficient intends to decline with the increase of the applied electric field.
静水实验中沉积物向上覆水体盐分释放通量符合负的幂指数形式,并按粉质粘土、中细砂、泥质粉砂顺序递减;
In column experiment the salt release flux from different sediment can be expressed as a negative exponential function and decrease in the order of silty clay, medium-fine sand and pelitic silt.
通过速率方程证明了该网络是节点度分布符合幂律分布的无标度网络,其幂指数为- 3,且平均连接度为给定值。
It is proved that the degree distribution of the network obeys power-law form with the exponent-3, and the mean connected degree is given value.
本文介绍了高次方凸轮的设计方法并利用VB语言编制的程序设计了凸轮型线,介绍了幂指数的选取对凸轮特性的影响。
This paper introduce the design method and use the design programme wrote on VB language to design valve CAM profile.
首次把完全匹配层(PML)边界条件应用到adi FDTD计算中,采用幂指数形式的时间步进算法,推导了相应的迭代公式。
The perfect matched layer (PML) technique is used in ADI-FDTD calculation for the first time. The expressions for the exponential time-stepping algorithm in PML are derived.
类似地,幂指数定律模式也可在美国1919 - 2009年1月间的工业生产的月度摆动(绝对值)频率和级别中被发现(表2)。
Similarly, the power law pattern can be seen in the frequency and magnitude of the monthly swings, positive and negative, in us industrial production from 1919 to February 2009 (Exhibit 2).
模型将东亚大陆限定在一梯形边界框架之中,大陆岩石层被视为由幂指数律控制的薄层,它上伏在粘滞性较低的软流层之上蠕变流动。
In this model the EastAsia continent is limited in a trapezoid geological frame and the continental lithosphere is regard as a continuum thin plate with a power law rheology.
揭示了公式中幂指数的深刻含义——“分维”。根据这一模型,讨论了情报学三个经验定律的统一性和该分布的普遍性及其产生机制。
According to this model, we have also discussed the unifity of three empirical laws in the bibliometrics and the universality and mechanism of the Bradford-Zipf-Lotka distribution.
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