查询词典 variation factor

The characteristic and difference of flow in porous media between the pseudo-plastic fluids and the expansile fluids was described in detail. The experimental pressure drop measurements were made in a packed bed under a variety of conditions, and the variation of the friction factor with the Reynolds number was obtained. Corresponding to the flow resistance in a nonporous channel, the flow resistance in porous media can be divided into Darcy resistance and Forchheimer resistance as well. The experiment data was divided into Darcy regime, transitional regime and Forchheimer regime in accordance with the Reynolds number.

实验测定了不同浓度聚丙烯酰胺溶液在五组填充多孔介质中流动的压降-流量关系，绘出了阻力因子随Reynolds数变化的关系曲线；按照将流动阻力分为层流粘性阻力和惯性阻力的观点，将多孔介质流动阻力分为Darcy阻力和Forchheimer流动阻力；参考有关文献，将实验区域按Reynolds数范围分为Darcy流动、过渡流动和Forchheimer流动。

In our best cases in ilmenite, isotopic variation in 46TiO/48TiO the within run (1000 sec) scatter was only 0.7%(1σ), which is within factor of 2 of statistics limit. And the reproducibility in the case of 46TiO can be as good as ≦1%.

在钛铁矿中最好的情况下，1000秒的实验中，钛同位素46比48的偏差的一个标准差只有0.7%，是统计误差的两倍以内，并且在氧化钛形式当中的钛46的同位素比值的一个标准差小於1%。

By using descriptive statistics, independent sampling t-value inspection, single factor variation analysis, correlation of Pilson differentiation, and multi-regression methods, the concrete conclusions are presented as the following

经由描述性统计、独立样本t检定、单因子变异数分析、皮尔森积差相关、逐步多元回归等统计方法加以分析后所获致之具体结论有

Through the use of statistical methods of descriptive statistics, independent t-value test sampling, single factor variation analysis, Pilson differentiation correlation and gradual multi-regression, concrete conclusions are as the following

经由描述性统计、独立样本t检定、单因子变异数分析、皮尔森积差相关、逐步多元回归等统计方法加以分析后所获致之具体结论有

In this time, knowledge has become"intrinsic and kernel factor"instead of"external variation"with the increasing of economy.

在知识经济时代，知识己不是经济增长的"外生变量"，而是经济增长的"内在核心因素"。

The effects of ground on trimming and maneuvering control were studied.Taking a typical helicopter as an example,the trims for steady flight with different velocities and altitudes were first solved.Then control laws for lateral jink maneuver were obtained for helicopter NOE flight.The calculation results conform to the ground effect theory,and load factor and control variation of the maneuver can be used for reference.

以某直升机为算例，在近地飞行和考虑不同速度与高度时，分别进行了直升机稳定飞行时的配平计算，然后以侧向紧急转弯机动为例，对机动操纵规律的问题进行了计算分析，计算结果与地面效应的理论相符合，机动过载和操纵变化规律可以为飞行试验提供借鉴。

The dynamic characteristics of stochastic truss structures and stochastic frame structures are analyzed by using Random Factor Method. Then, from the expressions of structural random response of the frequency domain, the computational expressions of the mean value, variance and variation coefficient of the mean square value of the structural displacement and stress response under the stationary random excitation or non-stationary random excitation are developed by means of the random variable's functional moment method and the algebra synthesis method.

考虑压电智能桁架结构物理参数、几何参数、结构阻尼和外荷载、闭环系统控制电压分别或同时为随机变量，构建了结构在随机力作用下的动力响应分析模型，提出了求解方法，推导出结构动力响应随机变量的数字特征计算表达式，通过算例验证了所建模型和所提求解方法的正确性和有效性。

For this purpose, the minimum modulus eigenvalue of power flow Jacobian matrix of AC/DC power system is researched; by means of the sensitivity index of nodal voltage to reactive power variation and combining with participating factor, the bus or region where the voltage instability could happen most possibly are judged to provide decision-making foundation for the configuration of reactive power compensation device in power system.

该方法研究了交直流系统潮流方程雅可比矩阵的最小模特征值，以节点电压对无功功率变化的灵敏度为指标，结合参与因子，判断全电网中最有可能发生电压不稳定的节点或者区域，从而为系统无功功率补偿装置的配置提供决策依据。

This study attempts to use the statistical techniques of multilevel confirmatory factor analysis to model the measurement of learning school. The analyses follow the four initial steps proposed by Muthèn: conventional CFA of total structure, estimation of between-group variation, estimation of within-group structure, and estimation of between-group structure.

本研究采用多层次验证性因素分析的统计技术来模式化学习型学校的量表，分析依循Muthèn(1994)所提出的四个先行检定步骤：对整体结构做传统的验证性因素分析、组问变异的估计、组内结构的估计，以及组间结构的估计。

The diurnal variation of precipitation and effects of water vapor and temperature on precipitation are simulated by a three-dimensional cloud model. The cloud model reproduces the maxima and minima of diurnal variations of precipitation and reflectivity. The high humidity in low level at night is the key factor for the precipitation.

同时，利用三维云模式模拟了降水的日变化和水汽及温度对降水的影响，云模式再现了降水和回波强度的最大和最小值，晚上低层的高湿度是影响降水的重要因素。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。