4results about How to "Meet Response Needs" patented technology

The invention discloses a method for preparing a single-layer tungsten diselenide nanoband based on a space confinement strategy. By changing the flow and the growth time of hydrogen, effective control on the width and the thickness of a nanoband can be realized. The method comprises the following steps: uniformly spraying tungsten trioxide powder to one substrate, then covering the substrate by the other substrate, and forming micro reaction space which is of a 'sandwich'-like structure. Growth of a tungsten diselenide nanoband is carried out by utilizing a constant-pressure chemical vapor deposition method; physicochemical characteristics of a one-dimensional transition metal chalcogenide strongly depend on suspension key types on the edge of the one-dimensional transition metal chalcogenide, metallic properties are displayed by an ultranarrow band, and conversion from the metallic properties to semiconductor properties can be displayed from the edge to the center of a wider band; the tungsten diselenide nanoband is widely applied to micro-nano photoelectric devices due to the special property; industrial production of the tungsten diselenide nanoband can be realized through an experimental method of the invention.

The invention discloses a real-time control method for a fuel cell gas supply system based on an MODDPG algorithm. The real-time control method comprises the following steps: step 1, establishing a model of the fuel cell gas supply system; step 2, acquiring actual state information of the fuel cell gas supply system; 3, performing real-time control on the fuel cell gas supply system based on an MODDPG algorithm; according to the method, the MODDPG algorithm fusing the Pareto theory and the DDPG algorithm is provided, and the problem that global optimization is difficult to achieve in complex multi-objective optimization of a traditional discrete action control strategy is solved. Through a multi-target tradeoff mechanism of the algorithm, the optimization requirement of the fuel cell gas supply system in a complex dynamic environment can be better adapted, and the control strategy realizes optimal balance among different targets, so that the applicability and robustness of the control method are enhanced, and the overall efficiency and stability of system operation are improved.

The utility model relates to the field of lubricating oil processing, in particular to an emulsion type lubricating oil heating reaction device. The technical problems that in the lubricating oil heating reaction process, due to the fact that stirring is not uniform enough, time is wasted, and the heating function is not achieved, lubricating oil is prone to semi-solidification under the low-temperature condition, and the mixing efficiency of the lubricating oil is reduced are solved. According to the technical scheme, the emulsified lubricating oil heating reaction device comprises a fixed bottom plate and further comprises a heating assembly, a mixing assembly and an exhaust assembly. By arranging the heating assembly, sufficient heat can be provided to meet the reaction requirement, then reaction materials can be fully mixed and transferred through the mixing assembly and can be uniformly heated, gas generated by heating reaction can be conveniently exhausted through the exhaust assembly, the phenomenon that the gas pressure is too large is avoided, and the service life of the reaction device is prolonged. Gas generated after heating reaction of lubricating oil can be purified and filtered, and pollution to the environment is avoided.

The invention discloses an amino acid-based aggregate as well as a preparation method and application thereof. The amino acid modified by at least two hydrophobic groups is added into water, the pH value is adjusted to dissolve the amino acid, and then the pH value is adjusted to a specific value to obtain the amino acid-based aggregate. The obtained amino acid-based aggregate can replace an existing peptide aggregate, the cost of drug delivery is reduced, in addition, a series of amino acid-based aggregates of pH windows are obtained by changing modification groups and modification positions, and the pH response requirements of various application scenes are met.