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Background
Fever is a common symptom in children with infectious mononucleosis (IM). However, the significance of the duration of a fever is poorly understood. This study aimed to analyze the risk factors for persistent fever in children with IM.
Methods
Patients diagnosed with IM (aged <18 years; except those with concomitant hematological malignancies or tumor diseases) in a high‐volume academic...
This paper mainly studies the vibration and noise of permanent magnet motor under low-order harmonic currents. Artificial harmonic injection method in this paper is used on a 48 slots 44 poles permanent magnet motor for finite element calculation and analysis of acoustic field. The simulation analysis shows that when there is low-order harmonic current in motor windings, the vibration and noise of...
In view of the trend in recent years the wide application of HVDC system, in this paper, describes the electromagnetic properties and loss calculation of permanent magnet synchronous generator with rectifier load and no-load, analysis of the influence of the rectifier load on permanent magnet motor electromagnetic properties and loss. Based on the calculation of motor losses, application of Fluent...
With the going of the running time, the fault of the wind turbines happened frequently, which result in the long nonscheduled shutdown time and the great economic loss. The vibration signal of the wind turbine is acquired, processed and analyzed, which can provide the equipment performance report and the reasonable maintenance advice for the field staff. Therefore the field staff can make a reasonable...
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