Results 11 to 20 of about 2,229,339 (290)
The observed power spectrum & frequency-angular power spectrum
Physical Review D, 2023 The two-point summary statistics is one of the most commonly used tools in the study of cosmological structure. Starting from the theoretical power spectrum defined in the 3D volume and obtained via the process of ensemble averaging, we establish the construction of the observed 3D power spectrum, folding the unequal-time information around the average
Raccanelli, Alvise, Vlah, Zvonimir
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Wind Speed Spectrum of a Moving Vehicle under Turbulent Crosswinds
Applied Sciences, 2023 Wind loads have become one of the key influencing factors for the running safety of vehicles and comfort of passengers. The investigation of the wind speed spectrum characteristics of a moving vehicle under turbulent crosswinds is of great importance ...
Qingsong Duan
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Effect of a Novel Tooth Pitting Model on Mesh Stiffness and Vibration Response of Spur Gears
Mathematics, 2022 The existence of pitting failure has a direct influence on the time-varying mesh stiffness (TVMS) and thus changes the vibration properties of the gears.
Jingyu Hou +3 more
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Locating and imaging composite damage based on frequency spectrum detection of lamb waves
Frontiers in Physics, 2022 Lamb wave is widely concerned in damage detection of composite structures due to its long propagation distance and strong sensitivity to damage. In order to solve the problem of damage information extraction, high-precision imaging positioning of damage ...
Wenchao Zhang +3 more
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Measuring the Amount of Mechanical Vibration During Lathe Processing [PDF]
Transactions of the VŠB-Technical University of Ostrava, Mechanical Series, 2015 The article provides basic information regarding the measurement and evaluation of mechanical vibration during the processing of material by lathe work. The lathe processing can be characterized as removing material by precisely defined tools.
Štefánia SALOKYOVÁ
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Experiments with the Site Frequency Spectrum [PDF]
Bulletin of Mathematical Biology, 2010 Evaluating the likelihood function of parameters in highly-structured population genetic models from extant deoxyribonucleic acid (DNA) sequences is computationally prohibitive. In such cases, one may approximately infer the parameters from summary statistics of the data such as the site-frequency-spectrum (SFS) or its linear combinations. Such methods
Sainudiin, R +8 more
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Constraints on pre-big bang models for seeding large-scale anisotropy by massive Kalb-Ramond axions [PDF]
, 1998 We discuss the conditions under which pre-big bang models can fit the observed large-scale anisotropy with a primordial spectrum of massive (Kalb--Ramond) axion fluctuations.
A. Buonanno +40 more
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Journal of Modern Power Systems and Clean Energy, 2022 The damping performance evaluation for electro-mechanical oscillations in power systems is crucial for the stable operation of modern power systems. In this paper, the connection between two commonly-used damping performance evaluation methods, i.e., the
Yong Hu +4 more
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Alpha peak activity in resting-state EEG is associated with depressive score
Frontiers in Neuroscience, 2023 IntroductionDepression is a serious psychiatric disorder characterized by prolonged sadness, loss of interest or pleasure. The dominant alpha peak activity in resting-state EEG is suggested to be an intrinsic neural marker for diagnosis of mental ...
Peng Zhou +15 more
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Radio Frequency Spectrum Management [PDF]
Electrical Engineering, 1980 NA NA NA http://archive.org/details ...
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