Abstract: The present disclosure discloses a bionic cuttlefish-typed underwater detection robot, including a bionic “cuttlefish”-typed body structure, a piezoelectric energy capture device, a circuit rectification and storage assembly and a power control assembly. The bionic “cuttlefish”-typed body structure includes a head and a main body; the piezoelectric energy capture device includes piezoelectric ceramic elements arranged around the main body and PVDF floating belts, and an end of each piezoelectric ceramic element is connected to a spherical spoiler component, the PVDF floating belts are evenly distributed at a tail end of the main body. The present disclosure adopts piezoelectric ceramic elements with spoiler components and PVDF floating belts to generate electricity, converts wave energy and ocean current energy into electric energy, powers the power control assembly of the detection robot.

Abstract: A method, performed by one or more processors, is disclosed comprising receiving, from a first user, a request to create a staging edit to a particular data object stored in a database, and creating a user staging version of the particular data object including the staging edit without editing the particular data object. The method may further comprise storing the staging edit in a memory space and indexing the user staging version in an index for enabling user searching and retrieval of the user staging version responsive to the first user requesting the particular data object.

Abstract: A single-stage multi-input forward DC-DC chopper type high-frequency link's inverter with series simultaneous power supply includes a multi-input single-output combined isolated bidirectional forward DC-DC chopper, a plurality of input filters connected to non-common ground and a common output filter circuit. The plurality of input filters and the output filter circuit are connected by the multi-input single-output combined isolated bidirectional forward DC-DC chopper. Each input end of the multi-input single-output combined isolated bidirectional forward DC-DC chopper is connected to output ends of each input filter in a one-to-one correspondence. The output ends of the multi-input single-output combined isolated bidirectional forward DC-DC chopper are connected to the output filter circuit. The inverter has multiple input sources connected to non-common ground, the power is supplied in a time-sharing or simultaneous manner, a high-frequency electrical isolation is performed between the output and the input.

Abstract: A single-stage multi-input forward DC-DC chopper type high-frequency link's inverter with series simultaneous power supply includes a multi-input single-output combined isolated bidirectional forward DC-DC chopper, a plurality of input filters connected to non-common ground and a common output filter circuit. The plurality of input filters and the output filter circuit are connected by the multi-input single-output combined isolated bidirectional forward DC-DC chopper. Each input end of the multi-input single-output combined isolated bidirectional forward DC-DC chopper is connected to output ends of each input filter in a one-to-one correspondence. The output ends of the multi-input single-output combined isolated bidirectional forward DC-DC chopper are connected to the output filter circuit. The inverter has multiple input sources connected to non-common ground, the power is supplied in a time-sharing or simultaneous manner, a high-frequency electrical isolation is performed between the output and the input.

Abstract: Technologies are disclosed for mapping documents to candidate duplicate documents in a document corpus. A bitset optimized inverted index is created for a document corpus. A document is received for which candidate duplicate documents in the document corpus are to be identified. The document is tokenized using adaptive tokenization. A determination made as to whether tokens in the document are represented in the bitset optimized inverted index. A list of candidate duplicate documents is created for tokens represented in the optimized inverted index utilizing in-memory bitsets that map tokens to documents that contain the tokens in the document corpus.