4results about How to "Strengthen interconnection" patented technology

The invention discloses a document-level natural disaster event extraction method fusing an attention adjacency matrix, and belongs to the technical field of text data mining, and the method specifically comprises the following steps: 1, collecting natural disaster events to construct a text data set, and carrying out document-level label labeling on the natural disaster events; step 2, inputting the labeled document into a trigger word recognition layer for trigger word recognition; 3, inputting the context of the sentence where the trigger word is located into an entity recognition layer for event information detection; 4, obtaining a context label corresponding to the natural disaster event through the entity recognition layer, and generating an attention adjacency matrix; and step 5, obtaining arguments in the natural disaster event through the graph network layer and the event output layer, and completing filling of the natural disaster event. According to the method, event information extraction can be automatically completed from the unstructured corpus, accurate information of the natural disaster event is obtained, and structured display is carried out.

An integrated unit (220) for transmitting rotational electric power from an electric circuit to de-ice a propeller blade (1101, 1102) and a nose cone (110) of a turbomachine, comprising: - a rotary transformer (2221) comprising a static part and a rotating part; - a DC-AC voltage converter (2231) whose output is connected to the static part of the rotary transformer and whose input is intended to be connected to a DC power supply (2321), and - a power supply switch (2211) connected to the rotary transformer and configured to transmit electric power to at least one pair of propeller blades (1101, 1102) and a nose cone (110) of the turbomachine.

The invention discloses a polyimide-based proton exchange membrane for a fuel cell and a preparation method of the polyimide-based proton exchange membrane, and relates to the field of polymer materials. The preparation method comprises the following steps: synthesizing a polyimide precursor, reacting the precursor with a sulfonating reagent, adding a modified substance, coating and forming, and carrying out heat treatment. The proton exchange membrane provided by the invention is excellent in conductivity, durability and thermal stability, and has a wide industrial application prospect.

The application discloses a polymer catalyst containing a solvent monomer and a macrocyclic chelating ligand, and a preparation method and application thereof, and belongs to the technical field of epoxide carbonylation reactions. The catalyst is composed of a polymer carrier part and a metal carbonyl species. The polymer carrier is obtained by polymerization of a solvent monomer and a macrocyclic chelating complex through a free radical polymerization or a Heck coupling mode, or is obtained by polymerization of a solvent monomer and a macrocyclic chelating ligand through a free radical polymerization or a Heck coupling mode, and then loading a metal coordinated with the macrocyclic chelating ligand. The polymerizable solvent monomer in the catalyst provides a solvation environment, the macrocyclic chelating complex serves as a Lewis acid, and the metal carbonyl species serves as a carbonylation active center. The catalyst has excellent performance in the process of catalyzing conversion of an epoxide into a beta-lactone, and lays a foundation for industrial application of the epoxide carbonylation reaction.