This notion of inter-domain transformation is useful in many fields of study-for example, moving from the time domain into the frequency domain in the field of signal processing.
这种域间转换的概念在很多领域的学习中都很有用—例如，信号处理领域中从时间域移入频率域。
The main goal of this study was to determine the frequency and degree of recovery or worsening of vestibular function over time.
本研究的主要目的是确定随着时间的推移前庭功能的恢复或恶化频率与程度。
Objective: to study the effects of respiratory movement frequency and scanning time on the image results in the treatment of lung cancer by stereotactic radiotherapy.
目的：研究立体定向放射治疗肺癌中呼吸运动频率与图像扫描时间对靶体积定位成像结果的影响。
It is crucial to study the features of the frequency hopping signals in both time and frequency domain in order to detect and trace the FH signals.
对跳频信号的时频域进行分析是研究跳频通信，实现识别、跟踪跳频信号的重要基础。
Aerobics training time and frequency can be according to their study and living conditions for time.
健美操锻炼的时间与次数可以根据自己的学习和生活情况安排时间。
Sedimentation cycle study method and technology using wavelet time frequency analysis theory is mostly studied and exploited.
重点研究和开发了利用时频分析研究沉积旋回的方法和技术。
Objective This in vitro study quantitatively assessed the effect of frequency and time span of immersion of human teeth in acidic soft drinks on enamel surface microhardness.
目的本实验用显微硬度测量法，定量研究和评估人离体牙釉质在酸性饮料中的硬度变化，比较牙釉质在饮料中浸泡时间及浸泡频率对釉质表面硬度的影响。
Joint time frequency analysis method is a powerful tool for study of this kind of signal.
联合时频分析的方法是研究这类信号的有力工具。
Using high frequency intra - day data, we study the correlations between liquidity and trading activity and their time series property.
本文利用日内交易的高频分时数据，研究了流动性和交易活动之间的相关性和各自的时间序列性质。
The study aims to explore the soldier students'overall frequency of strategy use and howgender, the time of delayed English learning and the previous education may affect the strategy choice.
通过对军校战士学员英语学习策略使用的总体情况，探讨性别、所受教育程度、英语学习间断时间对英语学习策略选择的影响。
A method of time field analysis in continuous system is adopted to study the output characteristic and the frequency response of switch type capacitor filter.
为了研究开关式电容滤波器的输出特性和频率响应，采用了连续系统时域分析方法，建立了滤波器的输出特性模型和频率响应模型，并进行了仿真。
The main characteristics of wavelet transform is that some character can well outstanding by transformation and it is an important way to study signal in time-frequency domain.
小波变换的主要特点是通过变换能够充分突出某些方面的特征，它是研究信号时-频分析的重要方法。
Objective To study the apnea hypopnea frequency and Numbers of arrhythmia in patients with obstructive sleep apnea hypopnea syndrome (OSAHS) in different time slots at night and their correlation.
目的探讨阻塞型睡眠呼吸暂停低通气综合征(OSAHS)患者夜间不同时段发生呼吸暂停、低通气次数与心律失常次数及规律相关性。
The paper proposes application of Wavelet Neural Network in high-frequency time series calendar effects' study. At last, the paper proves that WNN is better than classical FFF regression.
提出了用小波神经网络（WNN）来定量研究高频金融时间序列“日历效应”，通过比较发现WNN是比弹性傅立叶形式（FFF）回归技术更具优势的方法。
First, road roughness is simulated in frequency and time domain, and some vehicle models are established for the study of vehicle dynamic load.
首先，从频域和时域的角度对路面不平度进行模拟，进而建立一系列车辆动力学模型，并以此作为车辆动载荷分析的基础。
The study of static deformation, thermally induced distortion, dynamic response of natural frequency and modal pattern has been performed by using frozen fringe, realtime and time-average holography.
介绍了用冻结条纹法、实时全息法和时间平均法对静变形、热变形、固有频率和振型进行研究。
Objective: To study the influence of the low frequency time-varying magnetic field on cellar immunity function in mice.
目的：探讨低频交变磁场对小鼠细胞免疫功能的影响。
Such time domain signals are then processed to get frequency domain parameters. Then, the emphasis of this study was to optimize the electrical performance using simple compensation techniques.
在探明不连续性结构对微波传输特性的影响后，再对平面传输线不连续性结构进行补偿和优化，重点研究补偿后的不连续性结构对主模散射参数的改善和影响。
This thesis makes a study of high accuracy time interval and frequency difference measurement techniques.
本文对高精度时间差、频率差测量技术进行了研究。
This thesis makes a study of high accuracy time interval and frequency difference measurement techniques.
本文对高精度时间差、频率差测量技术进行了研究。
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