Abstract: The present invention relates to an adjustable torsion bar system and an anti-roll method, the adjustable torsion bar system is formed through the adjustable hydraulic connecting rods; and by controlling the flow of the liquid media, the characteristics of the hydraulic connecting rods are changed so that the length of the connecting rods has the characteristics of unchanged, unidirectional follow-up elongation or unidirectional follow-up shortening. Thus, the anti-rolling torsion bar system can provide the bidirectional anti-rolling torque or unidirectional anti-rolling torque to satisfy the safety driving requirements of the railway vehicle on different rails.

Abstract: A method for controlling a movable platform includes: displaying a first image and/or a second image on a display device of a head-mounted device, where the first image is captured by a first photographing device on the head-mounted device and the second image is captured by a second photographing device on the movable platform; when switching from displaying the second image to displaying the first image on the display device, sending a safety operation instruction to the movable platform to make the movable platform perform a corresponding safety operation. This disclosure ensures the safety of the movable platform during interactions between the head-mounted device and the movable platform, particularly when the content displayed by the head-mounted device changes. The disclosure also provides a terminal device and a head-mounted device.

Abstract: A hand-held straight grinder is provided. The hand-held straight grinder includes an elastic collet, an output shaft, a clutch assembly and a power assembly, where an opening is formed in one end of the elastic collet, and communicates with an internal space of the elastic collet; one end of the output shaft is in transmission connection to the power assembly, and the other end of the output shaft axially sleeves the elastic collet in a sliding manner, and is radially and fixedly connected to the elastic collet; the other end initially extends to the opening, and the opening is in a radial contracted state through cooperation; the clutch assembly includes a toggling unit, a first clutch unit and a second clutch unit, where the toggling unit is located between the first clutch unit and the second clutch unit.

Abstract: Provided is an isolated nucleic acid molecule encoding a chimeric antigen receptor (CAR), in which the CAR includes a single chain antibody or single chain antibody fragment, a costimulatory domain, a primary intracellular signaling domain. The single chain antibody or single chain antibody fragment includes a murine anti-CD19 binding domain, wherein the murine anti-CD19 binding domain includes a heavy chain variable (VH) region comprising a heavy chain complementarity determining region (CDR H1), a CDR H2, and a CDR H3; and a light chain variable (VL) region comprising a light chain complementarity determining region 1 (CDR L1), a CDR L2, and a CDR L3. The costimulatory domain includes 4-1BB, and the primary intracellular signaling domain includes a native intracellular signaling domain of CD3 zeta.

Abstract: The present disclosure provides a system and method for calibrating a display panel. The system includes a display panel including a pixel array and a controller. The processor is configured to, upon executing instructions: define a calibration vector with a source pixel, a vector volume, and a calibration range; calculate a distance between a pixel to be calibrated and the source pixel; calculate a calibration amount based on the distance and the vector volume; and calibrate the pixel to be calibrated based on the calibration amount and the calibration vector.

Abstract: A CPU resource control method and apparatus, and a computer-readable storage medium are provided. The method includes: detecting CPU resources occupied by a plurality of processes in a virtual machine; taking a process among the plurality of processes that occupies the CPU resources over a preset threshold as a target process required to adjust a CPU to be used, and calculating, according to the number of times the target process has been adjusted, the number of CPUs to be used by the target process, as the number of times the target process has been adjusted increases, the number of CPUs to be used by the target process decreases until it reaches 1; no longer detecting the target process when the number of CPUs to be used by the target process is 1; and selecting at least one CPU from the plurality of CPUs for use by the target process.

Abstract: This application provides a communication method, an apparatus, a device, and a storage medium. The method includes: A first device generates a first orthogonal frequency division multiplexing (OFDM) time domain signal, which occupies one subcarrier in frequency domain and is used by a second device to perform backscatter communication. The first device sends the first OFDM time domain signal to the second device. The first OFDM time domain signal occupies one subcarrier in frequency domain, such that power is concentrated on the subcarrier. When the second device performs backscatter communication based on the first OFDM time domain signal, reliability of backscatter data is improved.

Abstract: The present disclosure related to a common cathode micro led display with a driving circuit, a ground end, a plurality of LED units and a plurality switch units. The driving circuit connected to a plurality of transmission wires. One end of the plurality of LED units or one end of the plurality switch units is electronically connected to the plurality of transmission wires. The ground end is configured with a plurality of scan lines. Free ends formed by the plurality of LED units and the plurality switch units connected in series connect to the scan lines. A plurality of vertical conducted groups or a plurality of horizontal conducted groups are formed according to the switch units. A control unit is configured to drive the plurality of vertical conduction groups or the plurality of horizontal conduction groups. Therefore, the object to avoid voltage drop caused by the drive current is achieved.

Abstract: A pixel circuit, a display substrate, a display panel, and a display device are provided. The pixel circuit includes: a first driving circuit, a second driving circuit, a first light-emitting control circuit, and a second light-emitting control circuit. The first light-emitting control circuit is configured to control a connection between the first driving circuit and the light-emitting element and a connection between the first driving circuit and the first power line to be turned on or off; the second light-emitting control circuit is configured to control a connection between the second driving circuit and the light-emitting element and a connection between the second driving circuit and the second power line to be turned on or off; the first driving circuit and the second driving circuit are configured to control a driving current for driving the light-emitting element to emit light based on the same data voltage.

Abstract: A rotor for a continuous centrifugal separator includes a core body in a substantially cylindrical shape, fins, and a rotor body in a tubular shape. The core body is formed with fin mounting grooves continuous in an axial direction on an outer circumferential surface. The fins are mounted to protrude to a radially outer side from an outer circumferential surface of the core body. As the fin to be mounted, multiple types of fins that have different circumferential widths of a portion protruding to the radially outer side from the outer circumferential surface of the core body are prepared. A volume of centrifugal separation spaces is changeable by an operator selecting any one of the multiple types of fins and mounting the fins to the core body.

Abstract: This disclosure provides a diagnostic method for a position and orientation of a LiDAR, where the LiDAR is fixed to an apparatus, the diagnostic method including: determining a first reference data of scanning a calibration object by the LiDAR when it is in a standard position and orientation; controlling the LiDAR to scan the calibration object in a current position and orientation and collect a first measurement data of the LiDAR; and determining, based on the first reference data and the first measurement data, whether the current position and orientation of the LiDAR deviates from the standard position and orientation. In embodiments of this disclosure, using the characteristics of point cloud data of the LiDAR, the LiDAR diagnoses by itself an abnormal change in its relative position and orientation to the apparatus during the normal operation without the cooperation of other detector devices. Calculations of the diagnostic method are simple, and results are accurate.

Abstract: The present disclosure provides a vector retrieval method and apparatus, a device and a medium, and relates to the field of artificial intelligence technologies, particularly the fields of cloud computing technologies, big data technologies, or the like. The vector retrieval method includes: acquiring a plurality of candidate vector indexes generated in advance, the plurality of candidate vector indexes being generated based on a plurality of candidate field values included in a target field of original data; acquiring a query vector and a filter condition, the filter condition being used for indicating a condition required to be satisfied by a target vector corresponding to the query vector; if the filter condition includes a target field value required to be satisfied by the target field, determining a target vector index corresponding to the target field value in the plurality of candidate vector indexes; and performing query in the target vector index based on the query vector to obtain the target vector.

Abstract: The disclosure relates to the technical field of fans, and discloses a fan connecting structure and a magic link fan. The fan connecting structure includes a connector and first connecting portions arranged on adjacent fans. The connector includes a substrate. The substrate is provided with second connecting portions detachably combined with the first connecting portions. The first connecting portion is provided with first contact points. The substrate is provided with second contact points in contact with the first contact points. The second contact points are electrically connected to a fan circuit board. The fan connecting structure and the magic link fan provided by the disclosure solve the problem of messy wires for series connection of the fans in the prior art, leading to the difficulty in organizing wires in a fan mounting space.

Abstract: The present application provides a backlight module and a liquid crystal display device; the first portion of the slit adhesive is formed with a notch, so that when internal stress generates in the slit adhesive due to environmental changes, the internal stress can be released through the notch, thereby preventing the slit adhesive from warping and improving the yield of the backlight module.

Abstract: The present disclosure provides a method and Internet of Things (IoT) system for monitoring safety of a pipeline network valve well based on smart gas, implemented by a smart gas pipeline network safety management platform of an IoT system for monitoring safety of a pipeline network valve well based on smart gas, comprising: obtaining gas monitoring data of a valve well; obtaining external environmental data of the valve well; determining anomaly assessment data of the valve well based on the gas monitoring data; determining risk assessment data of the valve well based on the external environmental data; determining a target maintenance valve well and a target scheduling strategy based on the anomaly assessment data and the risk assessment data, the target scheduling strategy including a count of scheduling personnel and a volume of scheduling bandwidth; and sending the target scheduling strategy to a smart gas pipeline network maintenance engineering object sub-platform.

Abstract: Disclosed are a method and system of adaptive current control for an alternating-current AC servo motor. The method includes: acquiring an initial three-phase AC motor current; inputting the initial three-phase AC motor current to a current vector [inverse] transformation module to generate first target data; inputting the first target data to a current control loop, and simultaneously taking time derivative of the first target data to generate second target data; and inputting both of the second target data and an output of the current control loop to an incremental dynamic inversion control module, and inputting an output of the incremental dynamic inversion control module to the current vector inverse transformation module.

Abstract: A display panel and a display device are disclosed. The display panel includes a display substrate and a touch screen. The touch screen includes a third touch control layer. The third touch control layer includes a first connection part and a second connection part. The first electrode disconnected in the first display area is made conductive through the first connection part, and the second electrode disconnected in the first display area is made conductive through the second connection part. The first connection part and the second connection part form a new mutually capacitive coupling structure in the first display area, thereby achieving the touch function of the first display area. The material of the third touch control layer is transparent conductive material.

Abstract: A display substrate includes a substrate, and first active layers, a first functional layer, a second active layer, a second functional layer and an interlayer dielectric layer stacked in sequence on the substrate. The display substrate further includes first vias, second vias and third vias. The first vias each penetrate at least a portion of the second functional layer and at least a portion of the first functional layer, and each expose a partial surface of a first active layer. The second vias each penetrate the interlayer dielectric layer, and are respectively communicated with the first vias. The third vias each penetrate the interlayer dielectric layer and at least another portion of the second functional layer, and each expose a partial surface of the second active layer. The first vias are formed before the interlayer dielectric layer, and the third vias are formed later than the interlayer dielectric layer.

Abstract: Embodiments of this application provide a Bluetooth communication method and system. The method includes: A first electronic device to be added to a BLE network may actively send a request for joining the BLE network, and a second electronic device in the BLE network may prompt, in response to the request of the first electronic device, a third electronic device that currently, there is the first electronic device to be added to the BLE network. The third electronic device may display a pop-up prompt, to notify a user that currently, there is the first electronic device to be added to the BLE network. After the user agrees, the third electronic device prompts the second electronic device to configure the BLE network for the first electronic device.

Abstract: An array substrate and a display panel are provided. The array substrate includes transistors. Each transistor includes an active portion and a first gate, and the active portion is disposed on the substrate. The active portion includes at least one semiconductor portion and at least one epitaxial sharp corner portion connected to the semiconductor portion and protruding from the semiconductor portion in a first direction. In the first direction, the epitaxial sharp corner portion is located on one side of the semiconductor portion, the first gate is located on the semiconductor portion and the epitaxial sharp corner portion, and the first gate extends along the first direction.