In this contribution, we assess, for the first time, the tightly combined real-time kinematic (RTK) with GPS, Galileo, and BDS-3 operational satellites using observations from their overlapping L1-E1-B1C/L5-E5a-B2a frequencies.First, the characteristics of B1C/B2a signals from BDS-3 operational satellites is evaluated compared to GPS/Galileo L1-E1/
Abstract Background Proliferative diabetic retinopathy leading to vitreous hemorrhage, tractional retinal detachment, and neovascular glaucoma is a major cause of severe sight impairment in adults of working age worldwide.Neovascular glaucoma occurs in 2.5% of patients with proliferative diabetic retinopathy, which is difficult to treat and often l
Indoor air pollution has emerged as a major threat to human health worldwide that needs to be dealt urgently.The present review is an effort to overview the different indoor air pollutants (CO2, volatile organic compounds (VOCs) like formaldehyde, benzene, nitrous oxide, trichloroethylene, fluorine, ammonia, radon, aldehyde, hydrocarbons etc.) thei
Ex situ management COLOR PERFECT of wildlife provides a possibility for species maintenance, research development and environmental education.But as captive facilities are usually much smaller than the area occupied by a species in the natural habitat, cleaning might be insufficient, domestic species such as cats might be in close proximity, and wi
Present paper studies the variation of the blade spindle torque in a controllable pitch propeller (CPP) during the feathering maneuver, which is one of the rare but most challenging propeller maneuvers in Shorts CPP operation.The knowledge of the spindle torque under different operating conditions is one of the key features for the CPP controller u