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 frequency
 Study and Application of W-band Frequency Source Technology W波段频率源技术研究与应用 短句来源 Study on Frequency Resolved Optical Gating and LD-pumped Frequency-doubled Cr:LiSAF Laser 频率分辨光学快门的理论研究和LD泵浦Cr:LiSAF蓝光激光器的研究 短句来源 Researches on Coastal Storm Surge Frequency during the Warm Period of Middle Holocene in Middle Jiangsu Province 江苏中部海岸全新世中期温暖期风暴潮频率的研究 短句来源 Study on the Application of Time and Frequency Transfer with GPS Common-view GPS共视时间频率传递应用研究 短句来源 Application and Research on Nonparametric Statistics Theory in Flood Frequency 非参数统计理论在洪水频率分析中的应用研究 短句来源 更多
 frequencies
 THE EFFECT OF ELECTRONEGATIVITY OF SUBSTITUENTS UPON THE VIBRATIONAL FREQUENCIES OF P=O AND P=S GROUPS IN ORGANO-PHOSPHORUS COMPOUNDS 有机磷化合物中取代基电负性对P=O及P=S振动频率的影响 短句来源 TWO SIMPLE METHODS FOR ESTIMATION OF Rh GENE COMPLEX FREQUENCIES 估计Rh基因组合体频率的两种简易方法 短句来源 Analysis of the Natural Frequencies of Large Radar 大型雷达结构自振频率分析 短句来源 Iteration Method for Finding the Damped Natural Frequencies of Foundation Vibration 基础阻尼振动固有频率迭代求解 短句来源 The Optimal Design of Structures with Constraints of Stresses, Displacements and Frequencies 具有频率、位移和应力约束的结构优化设计 短句来源 更多
 frequency of
 THE STUDY OF VIBRATIONAL FREQUENCY OF C = O BOND OF BENZOIC ACID 苯甲酸C=O键的振动频率的研究 短句来源 THE SERIES RESISTANCE AND CUTOFF FREQUENCY OF DOUBLE DIFFUSED PARAMETRIC DIODE 双扩散参量二极管的串联电阻及截止频率 短句来源 CERTAIN FACTORS AFFECTING THE FREQUENCY OF INDUCTION OF WHEAT(TRITICUM VULGARE)POLLEN PLANTS 影响小麦(Triticum vulgare)花粉植株诱导频率的几种因素 短句来源 TEMPERATURE STABILITY ANALYSIS OF THE RESONANT FREQUENCY OF A PIEZOELECTRIC CERAMIC VIBRATOR 压电陶瓷振子的谐振频率温度稳定性分析 短句来源 Photoelectric Measurement of the Frequency of Micro Vibration Signal——An Active Photoelectric Detector of the Twist of Textured Yarn 微小振动信号频率的光电测定——弹力丝捻度动态光电检測仪 短句来源 更多
 the frequency
 Mapping the Disease Gene in SCA Families and the Frequency Distribution Analysis of Different Subtypes of SCA in Hans of China SCA致病基因定位及中国汉族人群SCA亚型频率分布 短句来源 Study on Damage Identification Method Based on the Frequency Change and Element Matrix Perturbation Theory 基于频率变化与单元矩阵摄动理论的结构损伤识别方法研究 短句来源 CERTAIN FACTORS AFFECTING THE FREQUENCY OF INDUCTION OF WHEAT(TRITICUM VULGARE)POLLEN PLANTS 影响小麦(Triticum vulgare)花粉植株诱导频率的几种因素 短句来源 The Application of“Receptance”for Deriving the Frequency Equation of Vibration of a Close-coupled System 应用“接受”推导封闭偶联系的振动频率方程 短句来源 Photoelectric Measurement of the Frequency of Micro Vibration Signal——An Active Photoelectric Detector of the Twist of Textured Yarn 微小振动信号频率的光电测定——弹力丝捻度动态光电检測仪 短句来源 更多

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 frequency
 Frequency-Domain Bounds for Nonnegative, Unsharply Band-Limited Functions In this paper we give a further investigation of the method introduced by the author in [1, Frequency-domain bounds for nonnegative unsharply band-limited functions] for proving bounds for functions with nonnegative Fourier transforms. We present two-sided singular value estimates for a class of convolution-product operators related to time-frequency localization. This paper presents an expansion for radial tempered distributions on ${\bf R}^n$ in terms of smooth, radial analyzing and synthesizing functions with space-frequency localization properties similar to standard wavelets. The Balian-Low theorem (BLT) is a key result in time-frequency analysis, originally stated by Balian and, independently, by Low, as: If a Gabor system $\{e^{2\pi imbt} \, g(t-na)\}_{m,n \in \mbox{\bf Z}}$ 更多
 frequencies
 They are potential tools for the decomposition and handling of signals that, like speech or music, seem over short intervals to have well-defined frequencies that, however, change with time. We prove a trigonometric inequality of Ingham's type for nonharmonic Fourier series when the gap condition between frequencies does not hold any more. We provide an almost sure convergent expansion of fractional Brownian motion in wavelets which decorrelates the high frequencies. The MC1595 was utilized to compose a phase detector in which difference of phases varies with the change of frequencies. The model built in this way describes the stable point scattering mechanisms in a large spatial extent and can be extrapolated to other frequencies in the optical region. 更多
 frequency of
 The syntonic frequency of the MOS RO changes in relation to many environmental elements, such as temperature, source voltage, and so on. The characteristic frequency of chaotic motion is thus extracted. Then, using the instantaneous frequency extraction principle of the Hilbert Transform, the rotor broken-bar fault characteristic frequency of 2sfs can be exactly extracted from the IMF component, which includes the rotor fault information. The experiment shows that the method can efficiently extract the frequency of a period-change radio frequency signal in a complex pulses environment and reveals a new feature for the signal sorting of interleaved radar pulse serial. The results showed the following: 1) occurrence frequency of P. 更多
 the frequency
 The measure for uncertainty is a product of two factors evaluating the frequency selectivity in comparison with the ideal filter and the effective length of the filter in the digital domain, respectively. The frequency domain method and the multiplier technique are used. The frequency domain method and the multiplier technique are applied. In BMS, both the frequency and the severity components are considered. Results show that the apparent active energy E of the reaction is 105.51 kJ/mol, the frequency factor lnA is 3.602 and the reaction order n is 2. 更多
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