1、

Two parameters, block spectrum intensity Seq and spectrum shape factor a, which describe the characteristics of the loading block spectrum are defined, and the relationship between the parameters and fatigue crack propagation behaviours is investigated.

定义了疲劳载荷谱的两个特征参数:块谱强度和形状因子,由此去描述载荷谱的特征,并研究了特征参数和疲劳裂纹扩展之间的关系。

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2、

Assuming that the target RCS fluctuation characteristic is the Gaussian spectrum characteristic, this paper simulates the target RCS fluctuation characteristic by white Gaussian noise passing through a lowpass filter with Gaussian spectrum shape.

在假定目标RCS起伏为高斯形状频谱特性的前提下,将高斯白噪声通过一个高斯谱特性的低通滤波器来模拟目标RCS起伏特性。

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3、

By the aid of travel time and waveform data of trapped waves, and body waves, and using spectrum analysis and ray-tracing method can further determine the 3-D geometric shape and physical parameters of faults.

借助于围陷波和体波的走时及波形资料,利用谱分析和射线追踪方法可进一步确定断层的三维几何形态和物性参数。

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5、

Study on Turbine Blade Vibration Mode Shape Measuring Method Based on Spectrum Analysis

基于频谱分析的叶片振型测量方法研究

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6、

In this paper, a new monocycle shape based on wavelet is investigated, The performance of wavelet-based monocycle and conventional monocycle under AWGN channel using direct sequence spread spectrum in UWB system ( DS-UWB) is compared.

本文研究了一种新的基于小波函数的超宽带窄脉冲,并比较其和传统的超宽带窄脉冲在AWGN信道中采用直接序列扩频(DS)的UWB系统性能。

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7、

Using X-ray diffraction, energy spectrum analysis and scanning electron microscope, TiO2 crystallite, shape and size on ceramic surface are tested.

利用x射线衍射仪、能谱分析和电子扫描电镜对瓷砖釉面表面的二氧化钛晶型、形貌、颗粒大小进行了测试。

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8、

In this pager, the self-phase modulation effect in gain saturated semiconductor optical amplifier and its affect on the shape, phase and spectrum of transmission pulse are analyzed.

本文分析了半导体激光放大器处于增益饱和状态下的自相位调制(SPM)效应,以及SPM效应对传输脉冲波形、相位及频谱的影响。

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9、

closed-loop gain shaping algorithm constructs a robust controller by the four engineering parameters of the largest singular value, bandwidth frequency, peak value and slope of high frequency asymptote according to the desired shape of sensitivity function and closed-loop frequency spectrum.

闭环增益成形算法根据闭环频谱及灵敏度函数所希望的形状,用最大奇异值、带宽频率、频谱峰值和高频渐近线斜率4个具有工程意义的参数构造出鲁棒控制器。

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10、

crystal can be crystallographically oriented by molecular spectrum with the change in band shift, band intensity, and band shape.

利用分子光谱谱带位移、谱带强度、谱带形态等的变化,可以初步对晶体作结晶学定向。

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11、

the paper presents a data flow distributing fcg algorithm, analyses the shape and parameters of ecg power spectrum, and gives a contrast example.

本文用数据分流FCG算法分析心电信号的功率谱图形的形状和参数并给出对照实例。

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12、

Formant: it uses the estimation of the overall shape of the spectrum's amplitude envelope.

共振峰: 使用了对频谱的振幅包络线的大体形状所作的估计.

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13、

By measured XRD, EDX spectrum, the little wire-shape rutile SnO 2 crystals ware obtained when added to excessive SnCl 2·2 H 2 O.

X射线衍射和X光 荧光能谱分析表明, SnCl2.2H2O的添加量较大时,还伴随生成金红相SnO2棒状晶体.

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14、

According to the shape of the estimated spectrum we infer a log normal distribution.

根据估计出的谱形态为对数常态分配.

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15、

Actual detecting environment is strictly controlled by embattling shape, which directly influences the precision, bandwidth and range of spectrum.

实际测向环境对天线阵的布阵形状要求较严,形状选择的合理与否将直接影响测向精度、测向带宽及测向频谱的范围。

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16、

The different pulse-shape may change the cut-off order and spectrum intensity of HHG simultaneously.

不同的脉冲形状会导致高次谐波的截止频率和谱线强度的变化.

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17、

Through measures such as surface contact angle method and infra-red spectrum, the effects of particle size, particle surface activity, particle shape, etc were studied.

通过对改性产品接触角测量和红外光谱分析,探讨了颗粒粒度、表面性质、晶体结构对填充橡胶性能的影响。

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18、

The Solar Radio Patrol Network of USAF and the Examination of Prediction Accuracy of the U-Shaped Radio Spectrum for Cycle 21

USAF太阳射电全球巡视网及其第21太阳活动周U-型谱预报精度的检验

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19、

Two methods were used to shape the spectrum of laser pulse.

采用腔内和腔外两种方法对激光脉冲进行光谱整形。

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