Abstract: Provided are a surface zwitterionized silicone antifouling coating and a preparation method thereof. In the disclosure, hydroxyl-terminated polydimethylsiloxane and N-aminoethyl-3-aminopropyl methyl dimethoxysilane are used as raw materials, and tetramethylammonium hydroxide pentahydrate is used as a catalyst, thereby preparing a series of polydimethylsiloxane resins containing amino side chains in different proportions; then side chain amino modified polydimethylsiloxane is crosslinked and cured by using 3-glycidyloxypropyltrimethoxysilane as a curing agent; after that, the cured silicone coating is soaked in a solution of 1,3-propane sultone in acetone for ionization.

Abstract: The present disclosure relates to a multirotor unmanned aerial vehicle, comprising a fuselage, being provided with at least one support arm in a transverse penetrating manner, and a rotor, being disposed at each end of the support arm in a transverse tilting manner. When the unmanned aerial vehicle moves transversely, the tilting rotors can provide lift force for keeping the unmanned aerial vehicle at certain altitude and also provide power for transverse movement of the unmanned aerial vehicle, and meanwhile, the fuselage does not need to tilt, so that the unmanned aerial vehicle has the advantages of high response rate and high flight speed.

Abstract: The method for the measurement of turbulence by using reciprocating ocean microstructure profiler includes the following procedures: 1) system startup; 2) detection of the profile data of ocean dynamic environment information: a. temperature detection; b. shear detection; c. depth detection; and d. current and temperature & conductivity detection; e. gesture sensing; 3) control of ascending and descending operations of the profiler: a. uprising control; b. redirection operation; and c. sinking control; and 4) sleep mode. The method doesn't consume labor several times and the equipment is capable of providing long-time continuous profile measurement at a fixed area along a steel cable; and the entire system can ascend and descend steadily after hydrodynamic optimized layout, eliminating the measurement errors contributable to water flow fluctuation during detection, thus obtaining accurate ocean microstructure observation in vertical with higher precision.

Abstract: A reciprocating ocean microstructure profiler includes a first profiler subunit, a second profiler subunit and a central stand. The first profiler subunit is provided with the first buoyancy drive part and the first observation part; and the second profiler subunit is provided with the second buoyancy drive part and the second observation part. Both the first and second buoyancy drive parts are installed with a floating compartment, a drive compartment and a pressure housing each. A top oil bladder is provided in the floating compartment and a bottom oil bladder in the pressure housing. A drive pump assembly and a solenoid valve are installed in the drive compartment. The first and second observation parts are electrically connected to a controller each and each controller is electrically connected to a drive pump assembly and a solenoid valve.

Abstract: The method for the measurement of turbulence by using reciprocating ocean microstructure profiler includes the following procedures: 1) system startup; 2) detection of the profile data of ocean dynamic environment information: a. temperature detection; b. shear detection; c. depth detection; and d. current and temperature & conductivity detection; e. gesture sensing; 3) control of ascending and descending operations of the profiler: a. uprising control; b. redirection operation; and c. sinking control; and 4) sleep mode. The method doesn't consume labor several times and the equipment is capable of providing long-time continuous profile measurement at a fixed area along a steel cable; and the entire system can ascend and descend steadily after hydrodynamic optimized layout, eliminating the measurement errors contributable to water flow fluctuation during detection, thus obtaining accurate ocean microstructure observation in vertical with higher precision.

Abstract: A reciprocating ocean microstructure profiler includes a first profiler subunit, a second profiler subunit and a central stand. The first profiler subunit is provided with the first buoyancy drive part and the first observation part; and the second profiler subunit is provided with the second buoyancy drive part and the second observation part. Both the first and second buoyancy drive parts are installed with a floating compartment, a drive compartment and a pressure housing each. A top oil bladder is provided in the floating compartment and a bottom oil bladder in the pressure housing. A drive pump assembly and a solenoid valve are installed in the drive compartment. The first and second observation parts are electrically connected to a controller each and each controller is electrically connected to a drive pump assembly and a solenoid valve.