Results 41 to 50 of about 274,335 (270)
The violent ground motion before the Jiuzhaigou earthquake Ms7.0
Open Geosciences, 2020 An Ms7.0 earthquake occurred in Jiuzhaigou, Sichuan Province, China, on August 8, 2017. In this study, we used the vertical component data from 31 seismic stations near the epicenter from May 1 to August 20, 2017, to calculate the amplitude spectrum ...
Xu Kangsheng, Li Ying
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PLL wrap function for synchronization in phase jump disturbances
Ingeniería e Investigación, 2021 Synchrony plays a major role in the interconnection process between local electric power generation systems and the electrical grid. Grid phase disturbances prevent the generation system from maintaining synchrony.
Clementina Rueda Germán +3 more
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Finite formation time effects in inclusive and semi-inclusive electro-disintegration of few-body nuclei [PDF]
, 2001 Finite Formation Time (FFT) effects in the exclusive reaction ^4He(e,e'p)^3H at high values of Q^2 are introduced and discussed. It is shown that the minimum in the momentum distributions predicted by the Plane Wave Impulse Approximation (PWIA), which is
Atti, C. Ciofi degli +3 more
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Mathematics of Computation, 1986 In this paper, we examine the FFT of sequences x n = x N + n {x_n} = {x_{N + n}} with period N that satisfy certain symmetric relations.
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Design and Implementation of Three-phase Precision Program-controlled Standard Source
Zhejiang dianli, 2022 The traditional program-controlled standard source cannot meet the requirements of the OIML R46 standard on small current and harmonic output accuracy. For the sake of improving the steady-state output accuracy and dynamic response speed of the standard ...
WANG Weihong +4 more
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, 2007 The split-radix FFT computes a size-n complex DFT, when n is a large power of 2, using just arithmetic operations on real numbers. This operation count was first announced in 1968, stood unchallenged for more than thirty years, and was widely believed to be best possible. Recently James Van Buskirk posted software demonstrating that the split-radix FFT
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A machine sound monitoring for predictive maintenance focusing on very low frequency band
SICE Journal of Control, Measurement, and System Integration, 2021 The monitoring of machines is one of key issues in the Industry 4.0 era. Particularly, the monitoring realized by non-contact sensors is drawing attention since it is easy to install and to avoid any problems caused by sensors accidentally dropping down ...
Kazuki Tsuji +5 more
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Drvna Industrija, 2022 The article presents theoretical analysis of machined surface roughness after sawing on circular saw and implementation of fast Fourier transform (FFT) as a possible simple filtering method for filtering out just the saw blade and saw tooth influence on ...
Igor Đukić +3 more
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, 2012 The fast Fourier transform (FFT) plays an important role in digital signal processing (DSP) applications, and its implementation involves a large number of computations.
Sreehari, Ambuluri
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Computation of electromagnetic fields inside three dimensional inhomogeneous dielectrics using a buffered block forward backward algorithm [PDF]
, 2006 The paper is concerned with the electromagnetic scattering from a three-dimensional inhomogeneous dielectric object. In particular, the paper compares the use of a buffered block forward backward (BBFB) algorithm to the use of the commonly employed weak ...
Babu, Bijilash, Condon, Marissa
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