个体价格的波动频率是个重要的问题。
根据人体脉搏信号特征,本文设计了一种脉搏波动频率测量系统。
According to the characteristics of the human pulse signals, a pulse fluctuation frequency measurement system is designed.
振幅、相位、进动角速度在过临界后的波动频率随转速增加而增加。
The minimum and maximum of amplitude fluctuation correspond with the minimum of precession speed after the critical point on the response curve.
通过对实验结果的频域分析,证明了其压力波动频率受激波器的控制。
Moreover, the experimental results showed that the periodic controllable hydraulic water hammer wave generated by the system can be used as an exciting force.
实验结果表明,流体在摇摆作用下产生波动;波动频率与摇摆频率一致。
The result showed that the fluid fluctuated under rolling motion, and the frequency of the fluctuation was the same as the rolling frequency.
这12种基本的特性还可以以2的幂或着对偶二元性来以更快或更慢的波动频率来波动。
These fundamental qualities can also vibrate at faster or slower frequencies through the powers of 2 or duality.
实验结果表明:在转子尾迹的影响下,静子叶片表面的波动频率是转子的尾迹频率及其倍频。
Experimental results show that under the effect of the rotor wake, the dominant frequencies of pressure fluctuations on stator blades are the rotor blade passing frequency (BPF) and its harmonics.
得到并分析了传感器的升温激活时间、响应性能和电动势输出以及在不同波动频率下的波形图。
The basic functions such as light-off-time, electromotive force output, response time and oscillograph trace under four different frequencies are obtained and analysed.
本研究也同时发现人格特质与心境体验、感情强度、心理弹性、心境波动频率、调节策略使用有关。
This study also finds that personality traits has relation with the mood experience, affect intensity, metal resilience, the frequency of fluctuation of mood and the regulation strategy usage.
通过对该方程的进一步分析后我们发现,在超导体中不仅存在电磁波动解,而且还存在类似于常规导体的电磁波趋肤效应,其趋肤尺度明显地依赖于电磁波的波动频率。
Through the analysis of this wave equation, we find there exists the skin effect in the superconductor, of which the skin depth is dependent on the wave frequency.
有规律的重复活动如声波、光波、无线电波都有一个特定的频率,或者说是每秒的波动次数。
Regular repeating actions such as sound waves, light waves, or radio waves have a certain frequency, or number of waves per second.
市场一直不稳定。我们相信市场会继续波动,直到美国证券交易委员会着手管理高频率交易团伙的活动。
Markets have been volatile and we believe that they will remain volatile until the U.S. Securities and Exchange Commission begins to rein in the activities of the high frequency trading community.
总结来看,女人的交易频率更低,持有组合的波动性更低,对回报率的心理预期也比男人低。
In short, women trade less frequently, hold less volatile portfolios and expect lower returns than men do.
采用等时隙采样方法,频率随机波动的大小则会严重影响谱分析的结果。
For uniform time sampling, the level of frequency fluctuation will greatly influence the results of spectrum analysis.
它具有开关频率恒定,转矩和磁链波动小等特点。
It features in low torque ripple, low flux ripple and fixed switching frequency.
频率“通常是指空气粒子来回运动的速率或者电压的波动,所以它能代表一个规则波形曲线上下波动的节律。”
"Frequency" just means the rate at which air molecules go back and forth, or a voltage fluctuates, and it can be represented as the rate at which a regular squiggle goes up and down.
在一个小的、与世隔绝的种族里,基因面貌频率上的偶然波动,可能因为偶然性而不是自然选择。
Random fluctuations in the frequency of the appearance of a gene in a small, isolated population, presumably owing to chance rather than natural selection.
目前我国电能质量国家标准主要规定了五个指标:频率、谐波、电压偏差、三相不平衡及电压波动与闪变。
At present, our country power quality national standard was chiefly stipulated five quotas: frequency, harmonic and voltage deviation, three-phase unbalance and the voltage fluctuation and flicker.
用谐波分析法进行介损测量时,很容易受到系统频率波动的影响,从而降低测量的准确度。
The accuracy of the dielectric loss measurement based on harmonic analysis algorithm is greatly influenced by the frequency fluctuation.
脉络波谱图分析查明了中范围(频率)信号波动的形态结构变化。
Venation wave spectrum analysis finds out shape-structure change of mid-frequency signal fluctuation.
并运用大量仿真,对本方法在谐波、电压波动等干扰环境下基本频率估计的有效性进行验证。
Finally, the fundamental frequency estimation under different PQ disturbances condition, such as harmonics, voltage fluctuations, etc, is analyzed by simulation respectively.
得到了系统在不同的输入转矩波动、齿侧间隙、齿轮综合误差、激励频率和阻尼比参数下系统的全局特性。
The system's global characters are obtained under different input torque fluctuation, backlash, composite transmission error, exciting frequency and damping ratio.
在变速参数中影响电机瞬时电流波动最为显著的因素依次为变速波形、变速幅度和变速频率。
The significant factors which exert an influence on instantaneous fluctuation of motor current are in sequence :Vari-speed wave form, vari-speed amplitude and vari-speed frequency.
通过对试验结果的统计分析可以得出:①可以利用段塞流持液率的波动情况来确定液塞频率。
Through the statistical analysis of the test results, it was found that we could obtain the liquid slug frequency from the fluctuation of the slug liquid holdup.
在弹性波动力学特征如波形、振幅、频率及衰减等方面研究薄弱。
The knowledge about the elastic wave dynamic characteristics such as waveform, amplitude, frequency and attenuation (Qp, quality value) is very limited.
从波动方程出发推导了各分段的位移及应变的表达式,同时给出了频率方程。
Based on wave equation, the formula of displacement and strain in different section are derived, and the frequency equation is given.
水下舰艇武器推进泵的机械密封装置的工作压力波动、使用频率小,并要求可靠性高。
The mechanical seal utilized in submarine's weapon ejection pump works under fluctuant working pressure and is used in low frequency, and high reliability is indispensable.
水下舰艇武器推进泵的机械密封装置的工作压力波动、使用频率小,并要求可靠性高。
The mechanical seal utilized in submarine's weapon ejection pump works under fluctuant working pressure and is used in low frequency, and high reliability is indispensable.
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