Results 21 to 30 of about 1,527,120 (243)
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2020 In aluminum alloy double pulse metal inert-gas (DPMIG) welding, the outputting arc current waveform is distorted under the influence of various factors such as harmonics and impact loads. The arc distortion of aluminum alloy DPMIG welding affects the arc
Kuanfang HE +6 more
doaj +1 more source
Analysis of Cavitation-induced Vibration Characteristics of a Vortex Pump Based on Adaptive Optimal Kernel Time-frequency Representation [PDF]
Journal of Applied Fluid MechanicsCavitation-induced vibration presents a significant challenge in vortex pumps, leading to potential damage to hydraulic components and adverse effects on pump performance. This study aims to investigate the long-term implications of such phenomena.
Y. Wang +4 more
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Applied Sciences, 2019 Detecting pain based on analyzing electroencephalography (EEG) signals can enhance the ability of caregivers to characterize and manage clinical pain. However, the subjective nature of pain and the nonstationarity of EEG signals increase the difficulty ...
Rami Alazrai +3 more
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Optimising Time-Frequency Distributions: A Surface Metrology Approach
Sensors, 2023 Time-frequency signal processing offers a significant advantage over temporal or frequency-only methods, but representations require optimisation for a given signal. Standard practice includes choosing the appropriate time-frequency distribution and fine-
Damir Malnar, Miroslav Vrankic
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On the Symplectic Covariance and Interferences of Time-Frequency Distributions [PDF]
SIAM Journal on Mathematical Analysis, 2018 19 pages, 2 ...
Elena Cordero +3 more
openaire +4 more sources
Estimating the flood frequency distribution at seasonal and annual time scales [PDF]
Hydrology and Earth System Sciences, 2012 We propose an original approach to infer the flood frequency distribution at seasonal and annual time scale. Our purpose is to estimate the peak flow that is expected for an assigned return period <i>T</i>, independently of the season in ...
E. Baratti +5 more
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DOA Estimation and Self-Calibration under Unknown Mutual Coupling
Sensors, 2019 In practical applications, the assumption of omnidirectional elements is not effective in general, which leads to the direction-dependent mutual coupling (MC). Under this condition, the performance of traditional calibration algorithms suffers.
Dong Qi +4 more
doaj +1 more source
Convolutional Neural Networks for Automatic Cognitive Radio Waveform Recognition
IEEE Access, 2017 Cognitive radio technology is an important branch in the field of wireless communication, and automatic identification is a major part of cognitive radio technology. Convolutional neural network (CNN) is an advanced neural network, which is the forefront
Ming Zhang, Ming Diao, Limin Guo
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Children with sickle cell disease (SCD) face multiple acute and chronic medical complications that may impact their quality of life as reported by patients themselves. Health‐related social needs (HRSNs), such as food and housing insecurity, are common in people with SCD, but the association between HRSNs and patient‐reported ...
Sarah J. Marks +5 more
wiley +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Combined oral contraceptive (COC) use in obese adult women dramatically increases the relative risk of developing a pulmonary embolism (PE). The risk of a PE in obese adolescent females taking contraceptives is currently unknown. The purpose of this investigation was to determine the effect of body mass index (BMI) and contraceptive
John Puetz, Joanne Salas
wiley +1 more source