查询词典 frequency histogram

In order to show the feasibility of this method, the calculating results are compared between by Voltrra series and by numerical method, and the two methods have a good coincidence. In the end of this chapter, each order transform function is calculated by using Voltrra series to analyze the feature of frequency domain.

对滞回系统的周期运动及混沌性态的研究还未见有过报道，本文对滞回系统在特定条件下的周期运动和混沌性态作了探索性的研究。

The calculating results show that the methods have high efficiency and numerical stability in both time and frequency domain

计算结果表明两种分析方法都具有较高的计算效率和数值稳定性。

"Financial services is one of our fastest-growing sectors," said Mr Nye, with activity – frequency and duration of visits – up 50 per cent in August and September.

奈伊表示："金融服务是我们增长最快的领域之一，"其8、9月份的活动量增长了50%。

If the expensive factory adopt oxygen , oast , salt bath furnace and coal stove etc. to heat a means, ask you to choose usage LW series high frequency induced warmup equipment.

如果贵厂采用氧气、烘炉、盐浴炉及煤炉等加热手段，请您选择使用LW系列高频感应加热设备。

After introducing VI and advantages of LabVIEW on programming in general, a module for fault diagnosis of rotor based on LabVIEW is discussed. It is a valuable part of the online monitoring system. The module is comprised of axis orbit and full spectrum and in the axis obit module three choices are available: original axis obit, average axis obit and certain frequency multiplication axis obit.

在简介了虚拟仪器和LabVIEW编程优点的基础上，介绍了利用LabVIEW开发的转子故障诊断模块，它是在线监测系统得重要组成部分，包括轴心轨迹模块和全谱分析模块，其中轴心轨迹模块包括信号的原始轴心轨迹，各倍频轴心轨迹和平均轴心轨迹。

It distributings musical frequency, loudness of a sound, form of switch of the rate with the floating object in animation, occasion, and the photograph is tonal distributing wait for data of 1000 multinomial features to change, the music that matchs to it according to these data searches again, photograph or animation.

它将音乐的频率、音强分布，动画中物体移动的速度、场面切换形式，以及照片色调分布等1000多项特征数据化，再根据这些数据搜索与之匹配的音乐、照片或动画等。

In the present thesis, firstly, the dispersion relation of an infinite dusty plasmas is studied, it is found that the effects of adiabatic variation, the external magnetic field, the particle collisions and the obliqueness have strong influence on dusty low frequency waves.

本文首先研究了无界尘埃等离子体中低频波的色散关系，发现尘埃绝热电荷扰动、外磁场、粒子碰撞和斜传效应对尘埃低频波都有强烈影响。

Because the spatial hole burning is much small in MQW lasers, the influence of this gain coupling effect on the threshold gain and frequency shift in MQW lasers will be obliviously.

标 签 半导体激光器空间烧孔分布反馈增益耦合 semiconductor lasers spoilal hole burning distributed feedbeak gain coupling

The number of the spectral switches decreases with decreasing obscuration ratio,and the relative spectral shifts at the spectral switches increases with decreasing carrier frequency and pulse width.

光谱开关的数目随遮拦比的减小而减小，而发生光谱开关处的相对光谱移动随载波频率和脉冲宽度的减小而增加。

The wavelet analysis belongs to the harmonic analysis, is one time domain, the frequency range analysis, has the multi- resolution characteristic, it ingeniously uses in the non- even distribution the resolution through the translation invariable window observation unstable signal.

小波分析属于调和分析，是一种时域、频域分析，具有多分辨率特性，它巧妙地利用非均匀分布上的分辨率通过平移的可变窗口观察非稳信号。

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。