This paper proposes a Negative-buoyancy Quad Tilt-rotor Autonomous Underwater Vehicle (NQTAUV), for which an attitude-tracking controller is designed for the hover and transition modes based on a disturbance-rejection control scheme.First, the structure of NQTAUV is illustrated, a mathematical model based on the Rodrigues Lip Kit parameters is prop
In order to reveal the competitive adsorption characteristics M Sweat Top of CH4 /CO2 mixed gas in coal, the isothermal adsorption experiments of five different ratios of CH4 /CO2 mixed gas in coal were carried out.Experiments show that the relationship between the adsorption amount of pure CH4 and pure CO2 and the gas pressure satisfies the Langmu
Due to the small thermal neutron absorption cross section of 11B isotope, high abundance 11BF3 is regarded as an important ion implanted gas and P-type doping source, and is mainly used in semiconductor material manufacturing process to significantly improve the anti-radiation interference ability of semiconductor devices.In order to achieve the op
Many picornaviruses require the myristoylation of capsid proteins for viral replication.Myristoylation is a site-specific lipidation to the N-terminal G residue of viral proteins, which is catalyzed by the ubiquitous eukaryotic enzyme N-myristoyltransferase (NMT) by allocating the myristoyl group to the N-terminal G residue.IMP-1088 and DDD85646 ar