Abstract: Provided is a connecting structure with three-dimensional shock absorption and energy absorption buffering. During an earthquake, a rotational connecting device enables an upper structure to only undergo a rigid body swiveling around the rotational connecting device and rock as a whole within a design-allowed range. Further, energy is absorbed and dispersed through deformation and energy dissipation of vertical connecting devices to mitigate earthquake impact on the upper structure. The above device achieves earthquake resistance and shock absorption, effectively reducing damage and destruction to the upper structure under strong earthquakes. The connecting structure has strong self-centering capability and is capable of effectively controlling its residual displacement after earthquake, thus preventing further damage to the upper structure and facilitating its repair.

Abstract: A device for supplying and recovering a minimal quantity lubricant in a magnetic field-assisted abrasive grinding, including a grinding wheel guard assembly, including a grinding wheel guard, grinding wheel, and wind deflector; a magnetic worktable mounted on the guard, and a magnetic clamp on the worktable; a controllable magnetic field assembly, including a permanent magnet and a first guide rail mechanism mounted on the deflector, the magnet being connected to the mechanism and to a recovering and filtering device; a controllable nozzle assembly, connected to the deflector on an opposite side of the magnetic field assembly, including a nozzle connected to a linear motion mechanism; and a controlling and monitoring assembly, including a vision camera on the worktable, connected to a system control box. The magnetic nanofluid can exert the optimal lubricating properties and cooling performance under the magnetic field-assisted abrasive grinding, and the magnetic nanoparticles can be further recycled.

Abstract: A rapid active vibration reduction method for a high-speed motion stage includes acquiring motion parameters of a motion body of the motion stage in current motion; determining a vibration reduction mode of a vibration reduction device according to the motion parameters; and controlling an action end of the vibration reduction device to contact with the motion body of the motion stage or contact with a driving device for driving the motion body to move based on the vibration reduction mode, so that a contact friction force used for suppressing vibration of the motion body is generated. Realizing vibration reduction by means of active friction can reduce vibration of the motion body in a specific stage needing vibration reduction, and the action end of the vibration reduction device does not need to contact with the motion body or does not need to contact with the driving device before vibration reduction.

Abstract: The present disclosure provides for antibody or antigen-binding fragments thereof that bind to human 4Ig-B7H3, multispecific antibody or antigen-binding fragments thereof that recognize human 4Ig-B7H3 as one antigen and at least one other antigen, anti-human 4Ig-B7H3 antibodies or antigen-binding fragments thereof further conjugated with a cytotoxin, a pharmaceutical composition comprising said antibodies or antigen-binding fragments thereof, and use of the antibody, multispecific antibody or the composition for treating a disease, such as cancer.

Abstract: A magnetic building block cover and a magnetic building block are provided. The magnetic building block includes a magnetic building block cover, a building block body, and magnetic members. The magnetic building block cover includes: a cover body, at least one first enclosure wall, and at least one second enclosure wall. The first enclosure wall and the second enclosure wall form a housing structure. One side of the first enclosure wall is connected to the cover body, and the other side of the first enclosure wall is connected to the second enclosure wall. The housing structure includes at least one first opening, and the first opening is disposed toward a corner of the cover body. The building block body is formed by four sidewalls connected end to end to define two second openings. The magnetic building block cover is configured to cover the second opening.

Abstract: A determining method for an under-navigation apical surgery path is provided. The determining method includes the following steps: S1, obtaining CT image data of affected teeth and jaw bone data of a patient, and calculating the CT image data of the affected teeth to obtain calculation parameters of the surgery path; S2, based on the calculation parameters of the surgery path and in combination with the data of the affected teeth and the jaw bone data, obtaining a start point and an ending point of the surgery path, and generating the surgery path based on the start point and the ending point.

Abstract: A rocking self-centering seismic/vibration prevention structure facilitating overall regulation includes an upper structure, a support mounting layer provided with an inner vertical member at a position of a plane centroid of the upper structure, and a foundation. Edge vertical members are arranged at intervals at a periphery of the upper structure in a contour direction thereof; the inner vertical member has an upper end connected to the upper structure, and a lower end connected to the foundation through a rotational hinge support for allowing the upper structure to generate rotational displacement and simultaneously limit translational displacement of the upper structure in a horizontal direction; vertical tension-compression supports mounted at the edge vertical members do not constrain lateral displacement of the upper structure, only provide compressive bearing capacity, and do not bear shear bearing capacity in the horizontal direction.

Abstract: Transfer learning (TL)-based systems, methods, and devices are provided for beam management in communication networks. In one aspect, a system may implement a transfer learning (TL)-based method comprising generating a neural network model for beam management in a telecommunications system, designating a plurality of labels, wherein one of the plurality of labels is associated with measurements from beams associated with a first set of measurements for a first frequency (f1). The system may also train the neural network model for the first frequency to produce a trained neural network model, including inputting measurements from beams associated with a second set of measurements for the first frequency (f1) and implement the trained neural network model to output a probability of each beam in the first set of measurements for the second frequency (f2) is a Top-1 beam, and determine beam identifiers (IDs) for the Top-K beams.

Abstract: A method for preparing a graphene film with a micrometer groove array and a triangular cross-section includes the following steps: A, subjecting a flexible sheet material to a pre-treatment, and obtaining a flexible sheet substrate; B, coating a carbon precursor material onto the flexible sheet substrate according to a required thickness of a solid carbon precursor, and conducting curing to obtain a flexible composite film loaded with the solid carbon precursor; where the carbon precursor material has a triazine ring network cross-linking structure; and C, adjusting laser parameters, and conducting direct-writing scanning on a surface of the solid carbon precursor with laser, followed by cleaning and drying to obtain the graphene film with a micrometer groove array and a triangular cross-section. The method solves the problems of current traditional processing techniques, which struggle to meet the high precision and three-dimensional requirements of a micro-scale/nano-scale structure of graphene films.

Abstract: The present invention provides a time display method and apparatus, and an electronic device. The time display method is applied to the electronic device, including: displaying a time dial, where the time dial includes a target pointer; and adjusting a display mode of the target pointer according to a first parameter of the electronic device, where the display mode of the target pointer includes at least one of the following: a color of the target pointer, a color filling amount of the target pointer, and a display attribute of a target element associated with the target pointer; and in a case that the display mode of the target pointer includes the display attribute of the target element, in a process of adjusting the display attribute of the target element, controlling a position relationship between the target element and the target pointer to remain unchanged.

Abstract: A management system may receive a wireless signal transmitted to a receiver. The management system may determine, based on the wireless signal or a set of decoded bits associated with the wireless signal that were determined using an artificial intelligence (AI) receiver module of the receiver, whether a cyclic redundancy check (CRC) associated with the wireless signal is passed. The management system may perform, based on determining whether the CRC associated with the wireless signal is passed, at least one of: a data storage operation associated with the wireless signal, a fallback operation associated with the wireless signal, or an online label recovery operation associated with the wireless signal. The management system may perform, based on determining whether the CRC associated with the wireless signal is passed, a model modification operation to update a neural network (NN) of the AI receiver module of the receiver.

Abstract: In some implementations, a base station testing system obtains model information associated with a neural network (NN) of an artificial intelligence (AI) receiver module of a receiver, training information associated with the NN; and the NN. The base station testing system determines one or more test cases for testing the NN and determines respective testing conditions associated with the one or more test cases. The base station testing system generates, based on the respective testing conditions, respective test case data associated with the one or more test cases. The base station testing system determines, based on testing the NN using the respective test case data associated with the one or more test cases, performance information associated with the NN, and generates, based on determining the performance information, a performance report associated with the NN.

Abstract: Real world object reconstruction and representation include performing operations that include sampling locations along a camera ray from a virtual camera to a target object to obtain a sample set of the locations along the camera ray. For each location of the at least a subset of the sample set, the operations include determining a position of the location with respect to the target object, executing, based on the position, a reflectance multilayer perceptron (MLP) model, to determine an albedo and material shininess for the location, and computing a radiance for the location and based on a viewing direction of the camera ray using the albedo and the material shininess. The operations further includes rendering a color value for the camera ray by compositing the radiance across the first sample set.

Abstract: Embodiment of the disclosure provide a data access method and an apparatus, a device and a readable storage medium. The method includes: in response to a demand of processing the data resource generated in a target application, sending a data access authorization request for the data resource to a plurality of clients of the target application, the plurality of clients being associated with the data resource. The authorization information for the data access authorization request is received respectively from at least one of the plurality of clients. At least one access credential respectively corresponding to the at least one client is obtained based on the authorization information. The target data associated with the at least one client in the data resource is accessed with the at least one access credential to process the target data.

Abstract: A neural network-based error compensation method for mass transfer of mini-light-emitting diode (Mini-LED) chips includes the following steps. (S1) An automated optical re-inspection result is obtained as a first result. (S2) The first result is sorted and normalized to obtain a second result. (S3) Nearest-neighbor interpolation is performed on a Mini-LED chip with a transfer status identifier being abnormal, and a differential of path variables of each Mini-LED chip is calculated. (S4) A multi-layer neural network model is defined. A loss function is constructed. A weight of the multi-layer neural network model is updated with the loss function, until no overfitting is observed. (S5) A chip transfer path is generated and input into the multi-layer neural network model to obtain a predicted transfer error value, and mass transfer of the Mini-LED chip is performed based on the predicted transfer error value.

Abstract: A modular graded energy-dissipation damper for resisting wind vibration and frequent, moderate, rare, and mega earthquakes includes an upper baseplate and a lower baseplate, where frequent earthquake energy dissipation components, moderate earthquake energy dissipation components, rare earthquake energy dissipation components and mega earthquake energy dissipation components are sequentially provided between the upper baseplate and the lower baseplate from the two ends to the middle; and further including wind vibration energy dissipation components provided between the upper baseplate and the lower baseplate and located at the two sides of the energy dissipation components, where the wind vibration energy dissipation component include an outer plate and an inner plate arranged at an interval and connected with the upper baseplate and the lower baseplate respectively, and a viscoelastic layer connected between the corresponding overlapping surfaces of the outer plate and the inner plate.

Abstract: The present disclosure belongs to the technical field of intraoral scanners, and particularly to a scanning head with a reinforced adhesive-bonding structure and an intraoral scanner that can be reused for an increased number of times and has the scanning head. The scanning head includes a plastic base layer (10) having a window formed at a tip portion thereof; an adhesive-bonding layer (20) applied to an entire or partial surface of a region of a plastic base layer directly facing the window; and a reflector layer (30) disposed within the window to be bonded to the plastic base layer (10) by the adhesive-bonding layer (20). The adhesive-bonding layer (20) is configured to enhance an embedding force with the plastic base layer (10) by a reinforcing structure so as to be strongly bonded to the reflector layer.

Abstract: This application discloses a communication system including a target network, and the target network includes at least a first subnetwork domain. The first subnetwork domain includes a first network node that belongs to a first path and a second network node that belongs to a second path. The first path includes a first channel and a second channel that are connected to the first network node, and the second path includes a third channel and a fourth channel that are connected to the second network node. The first channel and the third channel are protection switching channels for each other, and the second channel and the fourth channel are protection switching channels for each other. The first network node and/or the second network node may determine a transmission path of a service based on a state of a channel.

Abstract: An error-correctable planar stretching expansion device for chips includes a first film expansion mechanism, a second film expansion mechanism, a film pressing frame, a scanning camera, and an error correction mechanism. The error correction mechanism includes a correction disk, ejector pins, and a drive mechanism. The first film expansion mechanism and the second film expansion mechanism are employed to stretch a blue film globally. The scanning camera detects positions of chips on the blue film. The correction disk locally secures regions of the blue film where the chips are non-deviated by means of suction through holes. The ejector pins lift regions of the blue film where the chips are deviated and unsecured, thereby performing localized stretching of the blue film, thereby correcting the positions of the chips on the blue film and enabling precise adjustment of chip alignment.

Abstract: A chip pitch control method is provided, in which a first position matrix is generated, and a target matrix of the chips is constructed according to the first position matrix; a first displacement vector set of the chips is constructed; a second displacement vector set is generated, and a unit displacement vector each chip corresponding to a pinhole is obtained by quadratic spline interpolation in combination with the second displacement vector set; an objective function is iterated, and pinhole coordinates are simultaneously adjusted; the number of pinholes is adjusted, and compared with the number of chips; the target matrix is adjusted according to comparison results, and step (S2) or step (S6) is performed; a needle is controlled to pierce a back film according to the adjusted pinhole coordinates. A chip pitch control device is also provided.