Abstract: The embodiments of the disclosure provides a method, apparatus, device and storage medium of target segmentation. The method includes: determining location information of a current viewpoint when a target user watches a target object; performing target segmentation on the target object at location of a viewpoint based on location information of a current viewpoint and a visual foundation model, to determine and present a current segmentation result; and in response to a segmentation end operation triggered by the target user for the current segmentation result, taking the current segmentation result as a target segmentation result corresponding to the target object. According to the technical solution of the embodiments of the disclosure, any target may be real-time segmented, meeting a user segmentation requirement, and the accuracy and efficiency of target segmentation are ensured.

Abstract: A wind turbine planet gear shaft has a shaft body with an outer surface, a segment of the outer surface being a slide bearing surface configured to form a radial slide bearing with an inner opening of a planet gear. The slide bearing surface has a first portion configured as a non-load-bearing zone and a second portion configured as a load-bearing zone and exactly one axially elongate oil pocket in the slide bearing surface, that oil pocket being located in the non-load-bearing zone. An oil supply channel in the shaft body has a first end in communication with the oil pocket, and first and second oil return channels in the slide bearing surface each have a first end at a longitudinal end of the oil pocket and a second end open to ambient air.

Abstract: A connection device includes: an upper section and a lower section. A plurality of branches are arranged between the upper section and the lower section. A plurality of threaded holes are arranged between the plurality of branches. An upper power line is arranged inside the upper section, a lower power line is arranged inside the lower section. An upper section sleeve and a lower section sleeve are arranged at a connection between the upper section and the lower section. The upper section sleeve sleeves a power connector male plug, and the lower section sleeve sleeves a power connector female plug. The upper power line is connected the power connector male plug, and the lower power line is connected to the power connector female plug. The power connector male plug has a hollow rod, the power connector female plug has a hollow connecting rod connected with the hollow rod.

Abstract: A magnetic flowmeter for sensing process fluid flow includes a flow tube configured to receive the process fluid flow there through and a plurality of electrodes disposed to contact process fluid. At least one electromagnetic coil is disposed proximate the tube. A flow tube liner is provided in the flow tube having an interior surface configured to contact process fluid and an exterior surface mounted to the flow tube. The flow tube liner has at least one adhesion feature in the exterior surface which promotes adhesion between the flow tube liner and the flow tube. A method is also provided.

Abstract: A method and system for secure file sharing based on a domestic cryptographic algorithm including steps: registering, by a user, at a file sharing user terminal A and a file receiving user terminal B, and sending registration information of the user to a key management center; calculating, by the key management center, digest values of usernames a and b, combining the digest values to calculate private keys sa and sb of the user, and sending the private keys to the file sharing user terminal A and the file receiving user terminal B; specifying, by the user, a file f to be shared at the file sharing user terminal A, encrypting the file to generate a shared file F, and sharing the shared file; and receiving, by the file receiving user terminal B, the shared file F and then decrypting the shared file to obtain the file f.

Abstract: A security encryption method for computer files, and a security decryption method for computer files belong to the field of computer technology security and are used for solving the problem of data storage security. The encryption method and the decryption method are applied to a computer-readable storage medium and a computer. The computer sends a plaintext file or a ciphertext file to the computer-readable storage medium for executing an encryption or decryption operation, and then the computer-readable storage medium transmits the ciphertext file or the plaintext file to the computer. Both the encryption method and the decryption method are recorded in the computer-readable storage medium, such that a user only needs to possess the computer-readable storage medium; all data encrypted by the computer-readable storage medium cannot be decrypted by an illegal user; and all required critical keys do not need to be memorized by the user or stored by other means.

Abstract: A magnetic flowmeter for sensing process fluid flow includes a flow tube configured to receive the process fluid flow there through and a plurality of electrodes disposed to contact process fluid. At least one electromagnetic coil is disposed proximate the tube. A flow tube liner is provided in the flow tube having an interior surface configured to contact process fluid and an exterior surface mounted to the flow tube. The flow tube liner has at least one adhesion feature in the exterior surface which promotes adhesion between the flow tube liner and the flow tube. A method is also provided.

Abstract: Disclosed are materials, devices, methods and systems for the detection of target molecules in test samples using microrobots. The target molecules may be bacterial toxins. The microrobots may include biohybrid materials such as porous spore core, a middle layer coated on the spore core for the actuation and steering in a fluid and further conjugation with a functional probe, and a sensing probe anchored onto middle layer for attaching to the targeted molecules in a fluid to respond to fluorescent tracking. A system for detecting bacterial toxin, is disclosed and comprises an intelligent motion control system based on automated fluorescent recognition and detection methods, which can propel and guide the microrobots to realize the automated motion in a pre-designed path and perform the real-time monitoring when integrating with an inverted fluorescent microscope or a fluorescent emission multi-reader.

Abstract: The methods and systems for panorama stitching of trailer images provided by the present invention relates to the field of image processing, comprising: receiving, by a first on-board device, a first image data sent by a camera disposed on the left of the carriage, a second image data sent by a camera disposed on the right of the carriage, and a third image data sent by a camera disposed at the back of the carriage in real time; respectively analyzing the first image data, the second image data and the third image data utilizing an opencv algorithm, to obtain intrinsic parameters, extrinsic parameters and distortion parameters of the cameras; respectively acquiring feature points of the seventh image data, the eighth image data and the ninth image data utilizing a scale invariant algorithm to obtain a set of feature points; and stitching the first image data, the second image data and the third image data according to the set of the feature points to generate a first stitched image; utilizing an H.

Abstract: The methods and systems for panorama stitching of trailer images provided by the present invention relates to the field of image processing, comprising: receiving, by a first on-board device, a first image data sent by a camera disposed on the left of the carriage, a second image data sent by a camera disposed on the right of the carriage, and a third image data sent by a camera disposed at the back of the carriage in real time; respectively analyzing the first image data, the second image data and the third image data utilizing an opencv algorithm, to obtain intrinsic parameters, extrinsic parameters and distortion parameters of the cameras; respectively acquiring feature points of the seventh image data, the eighth image data and the ninth image data utilizing a scale invariant algorithm to obtain a set of feature points; and stitching the first image data, the second image data and the third image data according to the set of the feature points to generate a first stitched image; utilizing an H.