The instantaneous phase signal contains abundant information about the health state of machineries, which plays an important role in fault detection of machineries, rotor dynamic balance, transmission error of Rotate Vector reducer, etc.Traditional methods use signal processing methods based on encoders, EMD and Hilbert transforms or fractional del
Major disturbance events can have large impacts on the demography and dynamics of animal populations.Hurricanes are one example of an extreme climatic event, predicted to increase in frequency due to climate change, and thus expected to be a considerable threat to population viability.However, little is understood about the underlying demographic m
We report the case of a 48-year-old, Caucasian female who presented with slowly progressing asymptomatic poikilodermatous changes of the extensor aspects of the wahl kmx forearms.She also had typical Poikiloderma of Civatte on the V of the neck and erythemato-telangiectatic rosacea of the central face.The patient had been practicing aroma-therapy f
The global interest in solar energy as an alternative to traditional fuels has led to a significant overall houston astros cake ideas increase of attentiveness to solar energy systems, especially the solar chimney system.Because one potential drawback of solar chimney systems is the low efficiency of more traditional solar chimneys, researchers and