Upper UTI or acute pyelonephritis often presents with fever, chills, flank pain, and varying degrees of dysuria, urgency, and frequency.
上尿路感染或急性肾盂肾炎经常出现发热、寒颤、腰部疼痛和不同程度尿痛、尿急和尿频。
As a new technique of signal processing, wavelet analysis has excellent characteristics of time frequency localization and is suitable for analyzing time varying or transient signals.
作为一种日益获得广泛应用的信号处理新技术，小波分析具有良好的时频局域化特性，适应于时变和瞬变信号的分析。
This technique performs harmonic analysis of the nonspeech audio signals and then the resulted attributes including time-varying amplitude and frequency functions are piecewisely linearized.
这种方法首先对非语言声音信号进行谐波分析，然后对所得到的时变振幅与频率等声音信号参数进行分段线性化。
FOR radio transmission, inFORmation is imparted to a carrier wave by varying (modulating) its amplitude, frequency, or duration.
用于无线电传输时，信号用载波传送，通过改变(调制)载波的振幅、频率或间隔来实现。
The theoretical results show that for TM waves there exist frequency passband (s) and stopband (s) which can be switched into each other by varying the power.
理论分析表明，非线性TM表面波存在频率通带和禁带，通过调节导波功率可以实现通带和禁带之间的转换。
With this system, a varying frequency can be measured automatically in high sampling frequency, and the data are saved in a disk.
它能以较高的采样频率，对一动态变化的频率进行自动测量，并将数据存盘。
However, most children with seizures stopped, leaving varying degrees of mental retardation, the frequency and extent depends on the cause.
但大多数患儿痉挛停止后，留有不同程度的智能低下，其发生频率和程度取决于病因。
However, the information extracted from a frequency domain signal is based on the signal frequency content, as opposed to the shape or time-varying characteristics of the waveform.
然而，从频域信号中提取出的信息是以信号频率成分而非信号形状为基础。
Varying frequency is used to control AC pulse frequency in normal welding state.
正常焊接状态时变频控制交流脉冲频率。
The paper introduces a new kind of vortex gas mass flowmeter, which can measure gas mass flow by testing the vortex frequency and the horizontal varying lifting force.
介绍了一种利用检测漩涡频率和横向变动升力的方法测量气体质量流量的漩涡式气体质量流量计。
Immunity tests are carried out by varying the test severity level and the frequency of the induced disturbance.
免疫性试验通过改变试验的严格标准和感应干扰的频率得以完成。
There are lots of disadvantages in wireless environment, such as multi-paths fading, Doppler frequency shift and fast time varying of channel.
无线环境中存在多径衰落、多谱勒频移和信道快速时变等许多不利因素。
The methods of time frequency analysis include linear, quadratic and adaptive methods. They provide effective tools for analyzing signal time varying spectrum in time frequency plane.
时频分析方法分为线性、二次型和自适应等多种方法，它们提供了在时频二维平面上，分析信号时变功率谱的有效手段。
A circuit network or element to vary the frequency response of an audio-frequency circuit, thus varying the quality of the sound reproduction.
一种改变音频电路的频率响应能力的电路网络或器件，通过这种改变可以调整声音重放的质量。
This paper discusses the technical scheme and the operation results of frequency varying speed regulation of home used air conditioner.
本文探讨了家用空调器变频调速运行的有关技术方案和运行效果。
Threshold rattling speed not only depends upon the frequency and amplitude of the errors of a gear pair, but also time-varying meshing stiffness and their combination frequency.
齿面误差对拍击门槛转速的影响不仅与自身的变化频率、幅值大小有关，更重要的是与时变频率及其组合频率有关。
By varying the frequency and amplitude of driving signals, it is possible to control the moving direction and velocity of the actuator.
改变驱动信号的频率和幅值，能够控制驱动器的运动方向和速度。
However, for the wireless mobile communication systems, the radio channel is frequency selective and time-varying.
对于无线通信系统，无线信道不仅是频率选择性的，而且是时变的。
The improved algorithm can track frequency variation of the time-varying signal with no extra calculation burden.
对算法进行了改进，在不增加计算量的情况下，实现了对频率变化的跟踪。
Ih this article, the author points out the necessity, methods and effects of technical reform on transmission system of the extruder with the frequency - varying controlling technics.
提出了用变频控制技术改造螺杆挤出机传动系统的必要性，改造方法和效果。
By using these signals, the relative energy distributions of blasting vibration in different frequency bands and the regularity of vibration strength varying with time can be obtained.
应用这些信号可以给出不同频率带上爆破振动的相对能量分布和振动强度的时间变化规律。
The resistance and inductance manifest the frequency-dependent characters linearly varying within some frequency bands.
电阻和电感参数均有相应的频变特性，即在特定频段内呈线性变化。
About theoretic calculation for lightning electromagnetic field, two analytical methods are raised, which are dipole method in time domain and time-varying field method in frequency domain.
在雷电电磁场的理论计算方面，提出了两种方法，即时域中的偶极子方法和频域中的时变场方法。
The algorithm can resolve multiple signals and applied to signals with time-varying frequency.
该算法可实现多信号分辨，也可实现对时变频率信号的到达角估计。
The problem of channel estimation and tracking for MIMO time-varying frequency-selective channels is investigated based on training sequences.
本文主要研究了基于训练序列的多输入多输出（MIMO）时变频率选择性衰落信道的估计与跟踪问题。
The Doppler blood flow signal is inherently a nonstationary Gaussian random process whose time-frequency representation associates with the time-varying velocity of blood flow and its variations.
多普勒超声血流信号是一个非平稳的高斯随机过程，其时频分布与血流的速度及其变化有密切的关系。
The power system load flow frequency varying with loads can been calculated by dynamic load flow. Through it, state and tendency of power system are shown.
动态潮流可以提供系统潮流分布和频率随负荷变化的大体趋势，显示系统状态的走向，为系统态势分势提供依据。
The lung sounds data analysis USES time domain analysis, frequency domain analysis, power spectra analysis, time-varying spectra analysis and so on.
肺音分析采用了时域分析、功率谱分析、时变谱分析、同态处理等多种分析算法。
This paper briefly introduces the design of varying frequency speed adjustment system for boiler feeding coal and simply introduces it's advantages.
简要介绍了锅炉给粉变频调速系统的设计，并概述了其优越性。
This paper briefly introduces the design of varying frequency speed adjustment system for boiler feeding coal and simply introduces it's advantages.
简要介绍了锅炉给粉变频调速系统的设计，并概述了其优越性。
应用推荐