The environmental pollution and high energy consumption caused by the cassis crista coal-dominated energy structure in China have been the focus of attention for a long time.The co-firing of biomass with coal can save coal resources and realize effective utilization of biomass.In this paper, brewery wastewater sludge (SD) and bituminous coal (BC) w
To take single-phase PWM rectifier as AFE of cascaded H-bridge multi-level frequency converter can satisfy requirement that electric drive system of coal mine hoist must have capacity of bidirectional energy flowing, but there are third harmonic in its AC-side current because of the second ripple of output voltage.To shades eq driftwood slove the p
The budgerigar (Melopsittacus undulatus) is one of the most widely studied parrot species, serving as an excellent animal model for behavior and neuroscience research.Until recently, it was unknown how sexual differences in the behavior, physiology, and development of organisms are regulated by differential gene expression.MicroRNAs (miRNAs) are en