In this paper, an attempt was made to obtain the aerodynamic performance of a Hex-rotor unmanned aerial vehicle with different rotor spacing.The hover efficiency of the Hex-rotor unmanned aerial vehicle is analyzed by both experimental tests and numerical simulations.First, a series of index to characterize the aerodynamic performance of the Hex-ro
Epidermolysis Bullosa and Rickets in a 21-Year-Old Female: A Case Report
Epidermolysis bullosa (EB) is a group of rare genetic diseases that exhibit mechanical fragility of the skin.This condition will result in the occurrence of skin blisters, skin erosions, and skin ulcerations when the skin is subjected to trauma.In this case report, we present a case of EB and multiple skeletal deformities in a 21-year-old female.Sh
Directional Selection of Microbial Community Reduces Propionate Accumulation in Glycerol and Glucose Anaerobic Bioconversion Under Elevated pCO2
Volatile fatty acid accumulation is a sign of digester perturbation.Previous work showed the thermodynamic limitations of hydrogen and CO2 in syntrophic propionate oxidation under elevated partial pressure of CO2 (pCO2).Here we study the effect of directional selection under increasing substrate load as a strategy to restructure the microbial commu
Virtual-Grid Based Traffic Control Strategy With Multiple Intersections Collaboration
This paper proposes a dynamic cooperative traffic control framework for multiple intersections based on virtual grids to optimize the throughput and ensure fairness among all traffic flows.The traffic flows are divided by virtual grids; we call it virtual grid-based cooperative control of multiple-intersections (VGCC).The road segment between two i