The paper presents a method of motion curve frequency domain filtering in Omni-directional M-mode echocardiography images based on Discrete Fourier Transform (DFT).
介绍一种基于离散傅里叶变换(DFT)的全方向M型超声心动图运动曲线频域滤波技术。
It's this flatter frequency response curve that some people are willing to spend the extra money on, and Sennheiser know this.
就是为了这更平滑的频率响应曲线有人愿意付出更多的金子，森海塞尔知道这一点。
The acceleration response curve of resistor body midpoint can be computed by direct frequency response solution, simulation precision is testified by vibration test.
由频响求解器直接得出电阻基体中点的加速度响应曲线，其仿真精度通过振动试验给予了验证。
According to the national standard test methods, the frequency response of winding deformation curve was obtained through testing and analyzing the transformer winding model.
参照国家标准的测试方法，对变压器绕组模型进行了测试、分析，得到了绕组变形的频率响应特性曲线。
When positions of a microphone and a woofer are exchanged in a small rectangular room, a similar frequency response curve can be obtained.
在矩形小房间内，低音扬声器和传声器的位置互换后，测量得到的低音扬声器的频响曲线与互换前是一致的。
In severe cases, hearing loss may be profound with descending curve, which imply that the hearing loss is severer as the test frequency becomes higher.
在严重病例，重度的听力下降表现为下降型曲线，即随着测试频率的上升，听力下降的程度越来越重。
Mapped the FIR digital filter design of amplitude frequency characteristic curve.
绘出设计的FIR数字滤波幅频特性曲线。
The frequency curve provides a mechanical signature of the crisp food.
频数曲线提供脆的食物一个机械签字。
The phase-frequency and amplitude-frequency responses of the system were analyzed and experimented, which reasonably explains why the hysteretic curve changes with input signal frequency.
文中对所建立的系统进行了相频和幅频特性的理论分析和实验，合理地解释了此系统的迟滞曲线随输入信号频率变化的原因。
Considering this, this paper presents a method by experiment which can measure performance curve of silicon steel sheet at different frequency as reference of designing variable frequency motor.
针对这种情况，本文提出一种实验的方法，测取不同频率下硅钢片的特性曲线，以供变频电机设计时参考。
A novel measuring algorithms of frequency characteristic by using curve fitting techniques was presented.
提出一种新型的基于曲线拟合技术的频率特性测量算法。
Curve A might represent the frequency distribution of the number of days' supply on hand in the perishable grocery business.
曲线a 可用以刻画食品商人手中易霉货物储备天数的频率分布。
It compares the solutions of GA with the ones of approximate frequency response curve through computational example.
通过计算实例，用GA所求的解同近似频响曲线的解进行了比较。
Objectives To explore the new method to record the breath frequency curve of EEG in infant.
目的探索婴儿脑电图中呼吸频率曲线记录的新方法。
The wheel web, by virtue of its geometry and material characteristics, is a good emitter of high-frequency sound, and is believed to be the primary source of curve squeal noise.
尺寸和材料的特性导致了轮辋是一个良好的高频声源，轮辋也被认为是曲线尖啸噪声的主要来源。
Based on the flood level frequency curve, hydrological failure risk was divided into flood overflowing risk and flood overtopping risk.
基于推求的洪水位频率曲线，将堤防水文失事风险分为洪水漫溢风险和洪水漫顶风险。
According to the method, the relative overdamping can be expressed in a linear function of the product of the width of half peak of the response curve by the nature frequency of the geophone.
根据该方法，相对过阻尼系数能够表示成检波器响应曲线的半峰高宽度和检波器自然频率乘积的线性函数。
Results Satisfactory results of lung density in 269 patients were achieved, so were the frequency and the curve of pixel distribution.
结果269例肺密度测定的患者均得到了满意的肺密度值、像素在各区间的分布频率和像素分布曲线图形。
It can be seen that the frequency curve calculation is basically reasonable and show the estimation of "1482 flood" return period is rational after putting palaeofloods into flood series.
把古洪水加入到洪水系列后进行频率计算，可以看出频率曲线基本合理，说明对1482年洪水重现期的判断是合理的。
The substantial difference lies in that guaranteed rate frequency method determines the rate artificially, but synthetic duration curve method has its intrinsic frequency.
其根本差别只在于保证率频率法是人为地确定频率，而综合历时曲线法本身固有一个频率。
By harmonic analysis of the model we get the sensor's amplitude frequency curve and phase frequency curve.
对该模型进行谐响应分析，得到了该传感器的幅频特性曲线和相频特性曲线。
The main features of capacitance frequency curve recognize that the capacitance dispersion region results from the mechanism of interface relaxation polarization.
由电容频谱曲线的主要特征判断，界面驰豫极化机制主导这一电容弥散区。
Through the analysis of experimental results, the ideal vibration frequency curve was determined.
通过对试验结果的观察分析，确定了较为理想的振动频率控制曲线。
When vehicles passing ring coil detector, the interaction of vehicle body's substance and ring coil changes resonant frequency of the ring coil and forms a curve of frequency variation.
车辆通过环形线圈检测器时，车体物质与环形线圈相互作用改变了线圈的谐振频率，从而形成频率变化曲线。
A new method of least square is raised in curve fitting of flood frequency calculating and its specific properties are analysed.
提出了在洪水频率计算时适线法中最小二乘方的一种新的求解方法，并对其特性进行分析。
If necessary, further to the asymptotic logarithmic frequency characteristic curve of an amendment may be a more accurate curve.
若需要，再对渐近对数频率特性曲线进行修正，则可得较准确的曲线。
On-site vibration test of the servicing rig substructure is made, and the frequency response function curve and preceding 10 modes frequency are obtained.
对现役钻机底座做了现场振动测试，得到频响函数曲线及前10阶模态频率。
In this paper, a simple method of plotting logarithmic phase frequency response curve for open-loop systems is advanced.
文章给出了绘制开环系统对数相频特性曲线的简便方法。
The lack of earthquake curve and frequency curve all showed low value anomalies.
北京地区缺震曲线、频度曲线都出现低值异常。
Regional flood frequency analysis for un-gauged basins included selecting a pooling-group, estimating the index flood, deriving pooled growth curve and fitting flood frequency curve for tested basin.
无资料地区设计洪水的区域频率分析包括选择相似流域组、估计指标洪水以及推求区域综合增长曲线和设计流域的洪水频率曲线。
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