We are everyday now in a blundering magnetic field, very much negative frequency is affecting us.
我们现在每天都在一个浮躁的磁场中，很多负面频率在影响我们。
The FM noise and AM noise of a negative frequency feedback (NFFB) semiconductor laser(LD)are presented.
本文用半经典理论研究了负频反馈（NFFB）半导体激光器的FM和AM噪声。
For rectangular window FFT interpolation algorithm, the negative frequency components of harmonic components have a greater impact on the fundamental calculation error.
采用加矩形窗fft插值算法，谐波的负频分量对谐波计算的误差影响较大。
A new signal processing method for Coriolis mass flowmeter is proposed, which is based on the recursive DTFT algorithm and considers the contribution of negative frequency.
基于DTFT递推算法，提出了一种计及负频率影响的科里奥利质量流量计信号处理方法。
Conclusion WGFS has the effects of negative frequency named restraining cardiac muscle contraction and stretch function, and reducing rhythum of the heart and blood pressure.
结论：山参果汁总皂苷具有负性肌力和负性频率作用，即抑制心肌收缩和舒张功能，减慢心率、降低动脉血压。
The FM noise and AM noise of a negative frequency feedback (NFFB) semiconductor laser(LD)are presented. The FM noise (linewidth)can be reduced greatly by NFFB technique under proper conditions.
本文用半经典理论研究了负频反馈（NFFB）半导体激光器的FM和AM噪声。在适当的条件下，FM噪声（线宽）可用NFFB技术得到极大的抑制。
Similarly, the power law pattern can be seen in the frequency and magnitude of the monthly swings, positive and negative, in us industrial production from 1919 to February 2009 (Exhibit 2).
类似地，幂指数定律模式也可在美国1919 - 2009年1月间的工业生产的月度摆动(绝对值)频率和级别中被发现(表2)。
General SE was a significant predictor of hostility, anxiety, depression, and the intensity and frequency of negative emotions.
整体自尊与焦虑、抑郁、以及消极情绪的强度与频率都存在显著的负相关。
Then we detect and estimate the carrier frequency of negative SNR DS-SS Signal have done. Theoretic analysis and simulation prove the validity of the arithmetic.
理论分析和仿真实验证明，在负信噪比条件下该方法可有效提高对DS-SS信号载波的检测能力。
Frequency distribution of each type of large larvae and cocoons conformed to negative binomial distribution.
大幼虫和蛹的分布型均符合负二项分布。
In satellite mobile communications, Doppler frequency offset is a negative factor that couldn't be neglected.
在卫星移动通信中，多普勒频偏是一个不能忽视的消极因素。
Finite integration technique (FIT) is used to simulate the effects of shape change and optical printing precision on resonant frequency and the pass band of negative refractive index material.
下面利用有限积分法模拟形状变化和光刻精度产生的缺陷对负折射谐振频率和通带的影响。
Paralleling negative stiffness can not only decrease the isolator's natural frequency, but also improve the damping characteristic and increase the internal resonant frequency of the isolator.
并联负刚度弹簧不但显著降低了隔振系统的固有频率，同时也改善了系统的阻尼特性，提高了隔振系统产生高频内共振的频率。
Within the coupled resonant frequency region, the negative index of refraction can be achieved.
在负的磁导率和负的介电常数重叠的频率区域，能得到一个负的折射系数。
The proper negative pressure, when agrobacterium and callus cultivated, could increase transformable frequency and survival rate of callus.
农杆菌与愈伤组织混合培养时给予适当的负压条件可提高愈伤组织转化频率和存活率。
The frequency of use in affirmative ones is lower than that of negative ones, mainly due to difference between expressed sense and listed objects.
肯定式的使用频率远远不如否定式高。这主要是由于表达的意义和对举的对象不同而造成的。
In the frequency domain, the power of the stochastic process has a negative exponent relationship with the circle frequency, and it is shown that the bonding surface appears the fractional phenomena.
在频率域内，该随机过程的功率与圆频率有负幂率关系，说明粘结面具有分形现象。
Compared to WH-questions and yes-no questions, the frequency of negative uses of alternative questions is lower.
但同特指问句和是非问句相比，选择问表否定意义的使用频率要低一些。
Additional negative feedback is provided to set loop gain to unity at the oscillation frequency, to stabilize the frequency of oscillation, and to reduce harmonic distortion.
为了使振荡频率稳定并降低谐波失真，需要加入一个在震荡频率处能够提供单位增益的负反馈路径。
The frequency modulation effects of positive dipole (unipole) forcing source on LFO is stronger than negative dipole (unipole), and the wave oscillation quicken evidently.
正偶(单)极强迫源对大气低频振荡的调制作用强于负偶(单)极，波动振荡明显加快。
As a practical example a frequency response and stability judgement of an amplifier with negative feedback are chosen to show the use of this method.
本文还选择了频率应和负反馈放大器稳定性判别中的一些实际问题，作为这种方法应用的实例。
Electromagnetic resonance of a periodic array wires are studied in free space and negative permittivity are realized in a certain frequency range.
研究了周期性排列的金属杆阵列的空间电磁谐振行为，实现了负介电常数。
The principle of stiffness offset with the positive and negative stiffness parallel were introduced and through analysis the natural frequency and the vibration transmissibility can be reduced.
介绍正负刚度并联相消原理，通过分析可知应用该原理可以有效降低系统的固有频率，减小隔振传递率。
When the signal spectrum falls into two or more channels, a method of spectrum assembling in frequency domain is used to obtain the positive or negative half spectrum.
在频域中当信号频谱处于两个或更多个滤波器通道时，通过频谱组合办法直接得到实信号的正半谱或负半谱。
The variable polarity power supply can satisfy the welding process of the aluminum and aluminum alloy by adjusting the current frequency, positive and negative current time and amplitude value.
调节正负半波的幅值、频率及占空比能满足铝及铝合金的焊接工艺要求。
The methods of realization of nonlinear stiffness and applications of combined positive and negative stiffness in ultra-low frequency vibration isolation are analyzed.
分析了刚度非线性的实现方法及正负刚度并联技术在超低频垂直隔振系统中的应用。
The methods of realization of nonlinear stiffness and applications of combined positive and negative stiffness in ultra-low frequency vibration isolation are analyzed.
分析了刚度非线性的实现方法及正负刚度并联技术在超低频垂直隔振系统中的应用。
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