Propellers are one of the key parts on the autonomous underwater vehicles.When adopting the conventional particle filter to estimate the degree of fault, based on the status given by the sensors, the diagnosis value is not always satisfactory in the transition stage (as it accelerates substantially).The diagnosis value is relatively larger than it
Abstract Background Activated sludge (AS) systems in wastewater treatment plants (WWTPs) harbor enormous viruses that regulate microbial metabolism and nutrient cycling, significantly influencing the stability of AS systems.However, our knowledge about the diversity of viral taxonomic groups and functional traits in global AS systems is still limit
Mammals exhibit a tremendous amount of variation in sperm morphology and despite the acknowledgement of sperm structural diversity across taxa, its functional significance remains poorly understood.Of particular interest is the sperm of rodents.While most jumbo tuz de?irmeni Eutherian mammal spermatozoa are relatively simple cells with round or pad
We estimated the prevalence of HIV, HBV mayde beauty 2x deep wave and HCV infections among injecting and non-injecting drug users treated within public drug-treatment centres in Italy to determine the correlates of infection.In the sample of 1330 drug users, the prevalence of HIV was 14.4% among drug injectors and 1.6% among non-injectors; the prev
Several novel bioactive components isolated from Chinese medicinal plants will be presented.These include novel maytansinoid tumor, inhibitors, some new ent-kaurane and rosane diterpenoids from Mallotus anomalus Meer et Chun (Euphorbiaceae), farmhouse magnolia wreath as well asnovel insecticide, stemona alkaloids from Stemona parviflora C.H.Wright