Abstract: A robot joint torque control system and a load compensation method therefor are provided, which relate to the technical field of robot joint motion control. A mathematical model of the robot joint torque control system is established first. Equivalent transformation is performed on a system functional block diagram thereof, and then it can be seen that load parameters have a great influence on joint torque output. A load compensation controller is designed to effectively eliminate the influence of the load parameters on an output torque of the joint. The system is equivalent to an inertial element on the basis of the compensation, and then a PD controller parameter is adjusted to increase an open-loop gain of the system, so as to increase a system bandwidth and increase a response speed of the joint torque control system, thereby improving performance of the joint torque control system.

Abstract: A differential-pressure sliding sleeve has an outer cylinder with a flow guiding hole being provided in a wall of the outer cylinder, an inner cylinder arranged in an inner cavity of the outer cylinder, an upper joint extending into the outer cylinder and fixedly connected to an upper end of the outer cylinder, a lower joint extending into the outer cylinder and fixedly connected to a lower end of the outer cylinder, and a dissolvable carrier ring arranged between the lower joint and the inner cylinder. An area of the axial upper end surface of the inner cylinder is greater than that of an axial lower end surface thereof, so that the working fluid generates a pressure difference to provide downward pressure for the inner cylinder, which moves downward under the pressure after the carrier ring is dissolved to open the flow guiding hole.

Abstract: Provided are a data association query method and apparatus, a device, and a storage medium. The data association query method includes the following: parsing a data query statement to obtain association query information, where the association query information includes query key information of a first association table; determining a query policy according to the query key information, where the query policy includes a partition filtering policy, a scan-while-filter policy and a scan-before-filter policy; and querying data in a second association table based on the query policy.

Abstract: The invention discloses a detection method based on supercritical fluid chromatography (SFC) and post-column dicationic ionic liquid (DIL) charge complexation, which includes the following steps: (1) The supramolecular solvent (SUPRAS) was prepared by mixing heptanol, tetrahydrofuran, and water; (2) Sample pretreatment: the SUPRAS was used to extract the sample for subsequent analysis; (3) Analysis of perfluorinated compounds (PFCs) using SFC separation, post-column DIL-based charge complexation, and electrospray ionization-mass spectrometry (ESI-MS). The invention established a novel analytical method for the detection of PFCs in textiles incorporating post-chromatographic DIL-based charge complexation and SFC coupled with ESI-MS. The DIL reagent formed positively charged complexes with anionic analytes during the ESI process, facilitating MS detection in the positive ion mode with enhanced detection sensitivity.

Abstract: Disclosed are techniques for positioning. A receiver measures a time of arrival (ToA) of a positioning reference signal (PRS) transmission of a first PRS sequence transmitted by a first transmitter, measures a ToA of a PRS transmission of a second PRS sequence transmitted by a second transmitter, and determines an observed time difference of arrival (OTDOA) as a difference between the ToA of the PRS transmission of the first PRS sequence and the ToA of the PRS transmission of the second PRS sequence, wherein the OTDOA is less than half a maximum differential delay expected between the PRS transmission of the first PRS sequence and the PRS transmission of the second PRS sequence, and wherein a repetition duration of the first PRS sequence and the second PRS sequence is greater than 10 milliseconds (ms) and at least twice the maximum differential delay.

Abstract: Disclosed are a device and method for detecting defects of a high-voltage cable cross-bonded grounding system. The method selects a protective grounding box of a cross-bonded grounding system, respectively connects a signal excitation coupler to A-phase, B-phase and C-phase coaxial cables of the protective grounding box, selects a stable signal with a frequency different from a power frequency or a field interference frequency, and tests effective current values and phases responded by the A-phase, B-phase and C-phase coaxial cables when the stable signal with the frequency F1 is injected into the A-phase, B-phase and C-phase coaxial cables of the protective grounding box; and obtains resistances and inductances of branch circuits of the cable cross-bonded grounding system by calculation according to measurement data, and determines if the cable cross-bonded grounding system has a connection defect.

Abstract: A method includes forming Magnetic Tunnel Junction (MTJ) stack layers, which includes depositing a bottom electrode layer; depositing a bottom magnetic electrode layer over the bottom electrode layer; depositing a tunnel barrier layer over the bottom magnetic electrode layer; depositing a top magnetic electrode layer over the tunnel barrier layer; and depositing a top electrode layer over the top magnetic electrode layer. The method further includes patterning the MTJ stack layers to form a MTJ; and performing a passivation process on a sidewall of the MTJ to form a protection layer. The passivation process includes reacting sidewall surface portions of the MTJ with a process gas comprising elements selected from the group consisting of oxygen, nitrogen, carbon, and combinations thereof.

Abstract: A heat exchanger includes a first pipe, a second pipe, a plurality of heat exchange tubes, an inlet/outlet pipe, and a first member. The first pipe has a main channel, and the heat exchange tube is connected between the first pipe and the second pipe. The heat exchange tube includes a plurality of channels disposed to be spaced apart. The plurality of channels include a first channel with a largest flow cross-sectional area and a second channel with a smallest flow cross-sectional area. The first member is located in the main channel of the first pipe to define a first flow channel and a second flow channel. The first flow channel is connected to the inlet/outlet pipe, and the second flow channel is connected to the heat exchange tube. The first member includes through-holes.

Abstract: An anti-shake assembly with reduced size is disclosed which includes a circuit board, a photosensitive chip, and a magnetic component. The circuit board includes a first rigid board, a second rigid board, a plurality of connectors, and a plurality of coils. The first rigid board has a housing space. The second rigid board is movably housed in the housing space. The connectors are flexibly connected between the first rigid board and the second rigid board. The photosensitive chip and the coils are provided on the second rigid board. The magnetic component includes a base and a plurality of magnets. The base includes a central plate and a side plate. The side plate is arranged around a periphery of the central plate to form a housing space. The magnets are provided on the central plate facing the housing space. The magnets are arranged opposite to the coils.

Abstract: A flexure for a camera module is provided. The flexure includes a dynamic platform to which an image sensor is connected such that the image sensor moves with the dynamic platform. The flexure also includes a static platform connected to a static portion of the camera. The flexure further includes a plurality of flexure arms that mechanically connect the dynamic platform to the static platform. The plurality of flexure arms includes a first flexure arm including one or more signal traces having a first impedance and a base layer having a first width. The plurality of flexure arms includes a second flexure arm including one or more signal traces having a second impedance and a base layer having a second width. The first impedance is greater than the second impedance. The first width is less than the second width. The second flexure arm routes image data from the image sensor.

Abstract: A display module and an electronic device are provided. The display module includes a display film layer, a heat dissipation film layer, a support plate and an elastic thermal conductive sheet. The display film layer and the heat dissipation film layer include a flat area and bending areas, and an angle exists between a tangent of a curved surface formed by the bending areas and a plane where the flat area is located. The display film layer is stacked on a first surface of the heat dissipation film layer. The support plate is connected to a position where the flat area of a second surface of the heat dissipation film layer is located, and the elastic thermal conductive sheet is connected to a position where the bending areas of the second surface of the heat dissipation film layer are located. The first surface and the second surface are opposite surfaces.

Abstract: A smart outlet is provided to allow charging of a vehicle using a standard 240 Volt socket provided with features that limit use to authorized users and collect and transmit billing information associated with a charging session for an authorized user following OCPP standard.

Abstract: The present disclosure provides a gate driving circuit, a display panel, a driving method and a display device. The gate driving circuit includes an input module, a pull-up node, an output module, a first pull-down node, a first pull-down node control module and a first suppression module. The first pull-down node control module controls to connect the first connection node and the first pull-down node under the control of the pull-up node, and inputs the signal provided by the second signal terminal to the first pull-down node under the control of the potential of the first pull-down node; the first suppression module inputs the signal provided by the first level signal terminal to the first connection node under the control of the pull-up node.

Abstract: A memory device includes a memory string, and a control logic coupled to the memory string. The control logic is configured to perform a first programming operation and a second programming operation on a selected memory cell of the memory string, after the first programming operation and before the second programming operation, apply a ground voltage to a first word line coupled to the selected memory cell, and apply a first voltage to a second word line coupled to an unselected memory cell of the memory string, wherein the first voltage is higher than the ground voltage.

Abstract: Embodiments of the present disclosure relate to a method for generating a machine learning model. The method includes extracting multiple parameters from a target machine learning model, where the multiple parameters include a learning rate, state information, a loss value, a gradient, and a weight, and the target machine learning model is configured to execute tasks related to at least one of images, videos, voice, and text. The method further includes predicting a first learning rate by a first machine learning model based on the multiple parameters; predicting a second learning rate by a second machine learning model based on the multiple parameters; choosing, based on the first learning rate and the second learning rate, a learning rate having a minimum loss value in the first learning rate and the second learning rate; and adjusting the target machine learning model based on the learning rate having the minimum loss value.

Abstract: A touch-control panel and a touch-control displaying device, which relates to the technical field of touch control. In the present application, by providing the first carrier element, the first electrically conductive layer and the first shadow eliminating layer on the substrate, by blocking the first electrically conductive layer by using the first shadow eliminating layer, the reflectivity of the first electrically conductive layer is reduced, which reduces the pattern of the first electrically conductive layer being observed under intensive-light reflection.

Abstract: A scenario setting method and an electronic device are provided, and relate to the field of terminal technologies. In an electronic device control process, a real-time scenario is automatically generated in response to a user operation, thereby reducing a scenario setting difficulty and improving user experience. The method includes: A control device displays a first interface including a trigger area, displays, in the trigger area, a first identifier of a first device that executes a first intention, and displays, outside the trigger area, a second identifier of a second device that does not execute a second intention. The control device generates, in response to a user operation, a scenario corresponding to the first interface, where the scenario includes indicating the first device to execute the first intention, and indicating the second device to cancel execution of the second intention.

Abstract: In a method for predicting product assembly quality based on longitudinal unified learning, sample alignment is performed on a data sample of each participant to resolve problems of decentralization, nonuniformity, and scarcity of data; data partitioning is performed by a multi-player parallel structure on product assembly data by using a customized data partitioning policy, layer normalization is firstly performed by an encoder on partitioned data, and feature extraction is performed by a multi-thread attention layer to mine a correlation between each assembly production line inside the participant and assembly data of each device, so that a model feature extraction capability is enhanced; gradient security aggregation is performed on the local model of each participant by using a homomorphic encipherment method of secure multi-player computation, to obtain a global model, so that data of a plurality of sub-factories is merged to co-train a high-precision assembly quality prediction model.

Abstract: The embodiment of the disclosure discloses an antenna vibrator and an antenna, wherein the antenna vibrator comprises a radiation board. The radiation board is polygonal, and some areas of the radiation board are bent down to provide multiple supporting portions and multiple leaks. The corners of the radiation board are bent down provided with multiple bending portions, and each bending portion extends to both sides to form two extending portions. Therefore, by providing bending portions and extending portions, it may effectively reduce the size of the antenna vibrator, thereby optimizing the isolation of the antenna vibrator and increasing the working bandwidth of the antenna vibrator. Moreover, after the antenna vibrator is arrayed, the cross-polarization ratio may meet high-performance specifications without adding boundary conditions.

Abstract: The instant invention provides a deblocking double-layer chromatography and cassette for isolating nucleic acids from liquid biopsy samples such as urine with large sample volumes, small nucleic acid sizes, and low nucleic acid concentrations. Compared with the prior art of Ding et al. (U.S. Pat. No. 9,163,230) which proved the principle of double-layer chromatography comprising a positively charged DEAE membrane and a silica membrane, we further explored and optimized the membrane compositions and solution compositions for plasma and urine samples. More importantly, we set up a “deblocking” mechanism to overcome a “blocking” problem that the membrane is blocked by solid particles in the plasma and urine samples, thus greatly increasing its flowability. In addition, it omits a pre-filtering step, thus particularly suitable for its automation.