查询词典 frequency histogram

Based on the characteristics of adjustable speed with variable frequency systems, the paper presents an optimal design strategy.

本文根据变频调速集成系统的特点，提出具有针对性的变频调速电机优化设计策略。

The methods most in use to the solution of the problem with unacceptable frequency bands: one is a mathematical programming or optimum criterion method; the other is structure matrix perturbation.

前者的局限性是结构重分析次数多，计算时间长；后者虽可在一定程度上避免重分析，但其迭代步长难以确定。

The musculus orbicularis oculi of experimental group(n=31) was respectively stimulated by low frequency impulsed current for 3 weeks.

我们制作面瘫实验动物模型，电刺激眼轮匝肌，观察对神经纤维、肌纤维、运动终板等的作用，探讨电刺激疗法对面神经纤维、面肌肌纤维的作用。

The principal evidence for a separate seismic event is coherence among the members of a set of seismic traces over a short time interval of the order of 1-1 /2 or so cycles of the dominant frequency compared with less coherence elsewhere.

一地震波组中单个地震波相位与该组波相关的主要依据是与其它相关性差的地方相比它们之间有一很短的时间间隔约为 1-1 /2 36 Seismic 个主频周期。

Then the distributed sources models of one order approximation model, twoorders approximation model, spatial frequency model and low order JA seriesexpansion model are compared with respect to the model accuracy.

随后将分布源的一阶近似模型、二阶近似模型、空间频率模型和低阶JA级数展开模型的模型精度进行了比较。

Computer simulations validate the performance of these algorithms. And the model error of low order approximation distributed sources model, spatial frequency distributed sources model and Jocabi-Anger series expansion distributed sources model are discussed.

通过计算机仿真，验证了低阶近似分布源模型方位估计算法的性能，并且研究了分布源的低阶近似模型、空间频率模型和低阶Jacobi-Anger级数展开模型的模型误差。

The main difference between ours and LTF-MES is that we consider the execution order of tasks that may reduce the frequency of memory contentions.

而我们提出的演算法和最大工作量任务优先之演算法最大的不同在於，我们考虑任务的执行顺序，可因此减少核心之间相互竞争记忆体的频率。

It is shown that the order of the magnitude of the frequency of the single pulse EME reaches 105 Hz.

理论研究结果与现有的实验结果是吻合的。

The study on the attenuation law with statistic analysis and dimension analysis reveals that the attenuation index, closely relative to the properties of soil mass, can be expressed as a third order polynomial of vibrating frequency f.

用统计分析和量纲分析的方法研究了强夯振动的衰减规律，发现强夯振动衰减指数与场地岩土体的性质密切相关，可表示为振动频率的三次多项式的形式，为强夯振动的频域分析以及利用强夯振动研究岩土体的性质奠定了基础。

1Equation is deduced when input is complete correlation, frequency response function has not solution (order of numerator of polynomial need not be defined).

1当输入部分相关时，输入矩阵为非对角矩阵，其频响函数不能直接求得，本文推导了解决此类问题的公式。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。