大幅横摇导致倾覆是风浪中航行舰船的最主要风险之一,也是最为复杂的力学问题。
主要用于多道脉冲幅度分析器的道宽一致性的精确测量。
文章使用最小二乘拟合法优化各个单元激光器的振幅和相位,以获得最优化的平顶光束。
在电子学中,表示信号通过放大器、增音器或天线后幅度增加的程度。
就像落入万丈深渊困兽,飘零在一望无际的漆黑海面的孤舟。
为了调节记录的开头部分和尾端的振幅电平,通常采用专门的增益控制。
即使名义上为线性的装置,仅在某个有限的振辐之内才可能为线性。
文内阐述了,并不是雷电流的幅值越高,相应的进线危险段就一定越长;
分析了各种损伤度,损伤位置,损伤区域大小对波幅,首波延时时间等的影响。
首先将入射的聚焦光束分解为平面波谱,得到每个平面波的振幅矢量;
音乐也影响着脑波的振幅与频度,这可以通过脑电波观测得到。
转换速率,在运放的输入端加大幅值的阶跃信号,输出端电压的变化速率。
仿真表明此控制方法对于机动目标能够使偏差的振幅减小,提高命中率。
研究发现:随着转速比增大,系统响应的最大振动幅度最终会增大。
与其相反,吗啡能明显提高子宫平滑肌的基础张力,延长收缩相时程。
通过随振幅变化而变化的内磨擦测定核反应堆压力容器钢屈服强度…[中国核科技信息与经济研究院]。
地震级别是根据某一时期震动图记录的地震波振幅的对数值计算的。
由两种不同频率的波叠加在一起而产生的波在某一区域内的周期振动。
在交流电路中,电流的幅度是连续不断地变化的,因此相位和时间的概念变得十分重要了。
分析了此类径向振动变幅器的共振频率及径向位移振幅放大系数与其几何尺寸之间的依赖关系。
检测装置模拟地面设备发出测试需要的制式信号,同时对发出的制式信号大小进行检测。
由于缓解危机的措施规模也在扩大,其模式是一种振幅日渐增强的周期。
模拟声音振幅的度量,样本之间的间隔时间被称为采样率。
在话音通信中,因放大器的线性范围有限,把信号幅度压缩到一个较小范围的处理。
结果表明,缺陷信号幅值与孔形缺陷直径及其埋藏深度有良好的线性关系。
1·When we measure its momentum, we are treating it as a wave, meaning we can know the amplitude of its wavelength but not its location.
而当我们测量器动量时,我们将其当做波,这意味着我们能知其波长的振幅,但却无法获知其位置。
2·In subjects that have been drinking alcohol, for example, emissions are deadened. And different drugs alter the amplitude of OAEs, as do ear infections or wax build-up.
例如,有饮酒习惯的受试者,其耳声发射就已减弱,不同的药物也会改变耳声发射的振幅,耳道感染或者耳垢堆积也一样。
3·Then the researchers analyzed the frequency, duration and amplitude of each visitor's vibrations. And they found that assassin bug's vibes most closely matched some of those of prey.
研究人员经分析各造访生物震动的频率、持续时间以及振幅发现,食虫椿象与蜘蛛的某些猎物的震动特点最为相似。
4·And what is striking, really remarkable, that this is independent of the amplitude, and it's also independent of this Angle phi, this phase Angle.
令人惊讶的是,非常值得注意的,这个和振幅,没有关系,也和角度,没有关系,和相位角无关。
5·If plotted on the same set of axes, the amplitude curve would be barely visible.
如果对轴的相同集合绘图,振幅曲线几乎看不出来。
1·So, regardless of the type of wave that we're talking about, there's some common definitions that we want to make sure that we're all able to use, and the first is amplitude.
所以,不管我们讨论的,是哪种波,它们都有一些我们,能用到的共同的定义,其中第一个就是幅值。
2·In a drive system of power transistor inverter-motor, not only can it be used in fine control of motor current waveform, phase, amplitude and frequency, but can also be used to sense, fault current.
在大功率晶体管逆变器——电动机驱动系统中,它不但可用来对电动机电流的波形、相位、幅值和频率进行精细控制,而且能快速地检测出故障电流。
3·In other words, pulse width modulation is a modulation technique for generating variable width pulses to represent the amplitude of an input analog signal or wave.
或者换句话说,脉宽调制是一种调制技术,为发电可变脉冲宽度为代表的幅值输入模拟信号或波。
4·Because complex wavelet transforms can exactly identify amplitude and phase information in signal to be dealt with, they are suitable for detection of fault signals in power system.
复值小波变换能准确分辨出信号中所包含的幅值信息和相位信息,因而,适用于电力系统的故障信号的检测。
5·The regular pattern of influence on impact spectra by amplitude of pulse excitation and system damping was discussed.
讨论了脉冲激励幅值以及系统阻尼等对冲击谱的影响规律。
1·This, however, does not increase the speed at which the actual electromagnetic information travels — this is conveyed by the overall shape of the wave's amplitude.
然而,这实际上这样并不能增加电磁信息的传播速度- 电磁信息是靠波幅整体的形状来传递的。
2·Electrophysiological, there were sensory conduction velocity slowing, amplitude decrement of nerve action potentials, abnormal spontaneous activities and increased polyphonic motor unit potentials.
神经电生理检查显示神经传导速度减慢,波幅降低,异常自发电位(纤颤电位和正锐波),运动单元多相电位增加。
3·NAP was measured to judge the quality of nerve regeneration, and the amplitude and NCV of NAP were compared before and after surgery to observe the operative effects.
测定神经松解术前后的NAP,比较其波幅及神经传导速度以判断神经的再生质量及手术效果。
4·Electrical stimulation was applied to the infraorbital nerves and latency and amplitude of wave were recorded from the bilateral sternocleidomastoid muscles.
刺激一侧眶下神经,于双侧胸锁乳突肌记录峰潜伏期和波幅。
5·By the examples computation, the effects of the damage degree, damage location and zone on the amplitude and the arrival time of the received wave were quantitatively analyzed.
通过实例计算,定量地分析了结构内部损伤度、损伤位置和损伤区域大小对接收波幅值和波到达时间的影响。
1·The paper discusses how to regulate the amplitude of bending moment within beam end for frame structure, and presents revisal Suggestions for previous designs.
对框架结构梁端弯矩应如何调幅问题做一探讨,对以往设计提出修正性的建议。
2·The Taguchi method is studied to derive calibration formulae of frequency and amplitude modulation of digital signal generator in whole range in this paper.
文中在校准应用研究中采用田口方法,根据数字信号源的频率、调幅及调频试验典型值推导出全量程校准公式。
3·The spectrum of amplitude modulated signal are two half magnitude spectrums of base band signal positive and negative shifted by a carrier or R. F. frequency.
调幅讯号之频谱为一半强度基频讯号之频谱分别正负位移一射频或载波之频率。
4·It will give patients treatment by means of the amplified amplitude modulating wave current that can be obtained form medium frequency amplitude modulated by the low frequency pulse signal.
它将有关低频脉冲信号对中频调幅后,利用被放大的调幅波电流对人体进行治疗。
5·The traditional methods for identifying beat wave and amplitude modulation wave are shortage. The main disadvantage of these methods is that they can 't correctly identify in some cases.
现有的拍波与调幅波的识别方法存在不足,本文提出了基于分形几何原理的辅助判别方法。