Abstract: An underframe end structure without a bolster beam for a rail vehicle, including an underframe end beam, an underframe edge beam, a coupler mounting base, coupler support beams, and oblique support beams, where the front of the coupler mounting base is connected to the underframe end beam through the oblique support beams, two sides of the coupler mounting base are connected to the underframe edge beam through the coupler support beams, so that quadrilateral frame structures are respectively formed on the two sides of the coupler mounting base, the oblique support beams form an included angle of 55° to 80° with a forward opening, and the coupler support beams form an included angle of 120° to 140° with a backward opening.

Abstract: The present application relates to a split head lamp of a built-in energy storage element. The split head lamp includes a head lamp body, a connecting line and an external power source. The head lamp body includes a light-emitting assembly, a circuit board, an energy storage element, and a Micro Control Unit (MCU) chip; the MCU chip is mounted on the circuit board; the circuit board is provided with an energized interface for plugging in the connecting line; power supply of the energy storage element and the external power source is regulated by a program stored in the MCU chip; and the energized interface is a Universal Serial Bus (USB) interface. a power supply system has better interchangeability; and through the present application, lighting may also be continuously temporarily provided when the external power source is replaced or is low, such that the split head lamp is more user-friendly.

Abstract: This specification describes a zero-trust security container data control. A computer-implemented method includes generating a zero-trust security policy based on a scenario. A data pool for a zero-trust security container is built. The zero-trust security policy is adopted for data to be in or out of the data pool, where admission or egress is allowed for the data to be in or out of the data pool only after the data is verified based on the zero-trust security policy. Data in the data pool is hierarchically isolated based on the zero-trust security policy, so that the data in the data pool can be read directionally.

Abstract: Disclosed is a method of preparing glufosinate, and specifically a method of preparing glufosinate represented by formula (1) or its salt or enantiomer, or a mixture of its enantiomers in any ratio, comprising a step of hydrolyzing a compound of formula (III) to generate a compound of formula (1). Due to a distinctive reaction mechanism adopted in the method of the present disclosure, a halogenated hydrocarbon by-product in the Michaelis-Arbuzov reaction can be avoided and thus the destructive impact of the halogenated hydrocarbon by-product on ozone in the aerosphere can be prevented. Accordingly, the equipment and engineering investments required for the separation, purification, and collection of the foregoing by-product are eliminated, and the potential environmental and safety hazards brought by the foregoing by-product are also avoided.

Abstract: Embodiments of this application provide a method including: in a process of handing over a terminal side device, a source access network side device of the terminal side device and a target access network side device interacts with time division multiplexing (TDM) pattern configuration or uplink power configuration.

Abstract: The present disclosure discloses a method for automatically identifying south troughs by improved Laplace and relates to the technical field of meteorology. The method includes the following steps: acquiring grid data of a geopotential height field; calculating a gradient field of the geopotential height field in an x direction; searching for a turning point where a gradient value turned from being negative to being positive, and cleaning the gradient field; calculating a divergence of the x direction to obtain an improved Laplacian numerical value L?; performing 0,1 binarization processing on the L? to obtain a black-and-white image and a plurality of targets of potential troughs, merging the black-and-white image and the plurality of targets of the potential troughs by expansion, recovering original scale through erosion, and selecting an effective target through an angle of direction of a contour and an axial ratio.

Abstract: Disclosed is a PCB wiring heating type mosquito repellent device, which integrates two functions of ultrasonic mosquito repelling and mosquito repelling with an electric mosquito repellent mat. Meantime, the mosquito repellent device is provided with a plurality of heating sheets which may work independently. One side of a PCB heating panel is provided with a plurality of heating areas, and each heating area corresponds to one of the heating sheets. One side face of the heating sheet is connected with the heating area, and the other side face of the heating sheet is connected with the electric mosquito repellent mat. A heating wire is evenly laid in each heating area, and the heating wires in adjacent heating areas are connected in parallel and may supply power and heat independently.

Abstract: Disclosed are a method and device for winding a foil coil of a stereoscopic wound iron core transformer. The device includes a rotating assembly, a driving device and a plurality of loading assemblies; the rotating assembly is provided with a through hole matched with an iron core post, the rotating assembly is provided with a gear plate and a track ring around the through hole, and the gear plate and the track ring are fixedly connected by a fixing block; the loading assembly includes a cylinder and a tension device, and the cylinder is movably connected with the rotating assembly; and a driving end of the driving device is connected with the gear plate.

Abstract: Embodiments of the present disclosure provide a data transmission method, apparatuses, and a smart watch device. A first BLE module of a first MCU of a smart watch receives an instruction of transmitting data which includes an instruction of transmitting the data to an AP of the smart watch or a mobile terminal. The first BLE module determines whether the AP is in a wake-up state if the instruction is to transmit the data to the AP, and transmits the data to a second BLE module of the AP through a RFCOMM interface if the AP is determined to be in the wake-up state, otherwise, buffers the to-be-transmitted data. The first BLE module synchronizes state information to the second BLE module if the instruction is to transmit the data to the mobile terminal, and transmits the data to the mobile terminal through the RFCOMM interface.

Abstract: A winding cylinder of a stereoscopic wound iron core transformer is disclosed, including an outer cylinder, an inner cylinder and a tension assembly. The outer cylinder is movably connected with the inner cylinder through a bearing assembly, and the outer cylinder rotatable around an axis of the inner cylinder. The tension assembly includes a screw, a spring and a connecting assembly. The connecting assembly includes a fixing portion, a friction portion and a transmission portion, the friction portion and the transmission portion are both arranged around the inner cylinder, and the transmission portion is fixedly connected with the outer cylinder. A side face of the inner cylinder is provided with a through hole, and the fixing portion penetrates through the through hole and is fixedly connected with the friction portion.

Abstract: The present application relates to a portable electric heating mosquito repelling apparatus, including an apparatus housing, a repellent drug, and a power supply element. The apparatus housing is provided with a heating unit, the repellent drug is detachably arranged on the heating unit, the heating unit is used to heat the repellent drug, the working temperature of the heating unit is greater than 40° C. and less than 120° C., the power supply element is detachably arranged on the apparatus housing, and the power supply element is used to provide electric energy to the heating unit. The repellent drug used in the present application requires a relatively low working temperature, so the portable electric heating mosquito repelling apparatus of the present application has the relatively low working temperature, the apparatus itself has the smaller energy consumption, the endurance performance is better, the apparatus may be matched with the smaller power supply element.

Abstract: A winding die is disclosed, including: a gear baffle, where a middle portion of the gear baffle is provided with a first opening for placing an iron core post, and the gear baffle is provided with a first surface; and a cylinder, where the cylinder is arranged on the first surface of the gear baffle and connected with the gear baffle. The middle portion of the gear baffle is provided with the first opening for placing the iron core post, the gear baffle is fixedly connected with the cylinder, an external device is connected with a gear, and the cylinder on the gear baffle is driven to rotate around the iron core post by pulling the gear, so that a foil or an insulating material on the cylinder can be wound on the iron core post, finally realizing a foil winding.

Abstract: Ion-conductive membranes composed of glassy organic frameworks are provided. Also provided are devices incorporating the ion-conductive membranes and methods of making the ion-conductive membranes. The glassy organic framework membranes can be synthesized from nitrile- and/or acetyl-group containing monomers using thermally controlled, step-wise nitrile and/or acetyl trimerization reactions and film casting techniques.

Abstract: A display panel, a method for manufacturing the same, and a display device are provided. The display panel includes a plurality of anode electrodes, a first pixel definition layer provided with a plurality of first pixel openings, and a second pixel definition layer. At least two of the anode electrodes are disposed in one of the first pixel openings. Each of the first pixel openings has at least two light-emitting pixels with a same light-emitting color, and each of the light-emitting pixels corresponds to one of the anode electrodes. The second pixel definition layer is disposed at least between two adjacent anode electrodes in each of the first pixel openings. A height of the first pixel definition layer is greater than a height of the second pixel definition layer.

Abstract: A method for voice wakeup is provided, which includes: obtaining original first microphone data; performing first-stage processing based on the first microphone data to obtain first wakeup data, wherein the first-stage processing includes first-stage separation processing and first-stage wakeup processing that are based on a neural network model; performing second-stage processing based on the first microphone data to obtain second wakeup data when the first wakeup data indicates that pre-wakeup succeeds, wherein the second-stage processing includes second-stage separation processing and second-stage wakeup processing that are based on the neural network model; and determining a wakeup result based on the second wakeup data. According to this application, a two-stage separation and wakeup solution is designed, e.g.

Abstract: A machine learning model training method performed by a computer device acting as an active-party device is provided. The method includes: coding and encrypting a first object feature in the sample pairs provided by the active-party device using an active-party coding model to obtain an active-party first encrypted coding result; acquiring N passive-party first encrypted coding results correspondingly sent by N passive-party devices in combination with a second object feature in the sample pairs; splicing the active-party first encrypted coding result and the N passive-party first encrypted coding results to obtain a first spliced encrypted coding result, and applying the first spliced encrypted coding result to a first prediction model to obtain a first prediction probability; and causing an update of parameters of the different models based on a first difference between the first prediction probability and a first prediction task label of the sample pairs.

Abstract: Provided are a sorting method, apparatus, and a computer storage medium. The method includes: determining a first sorting result on the basis of a query requirement of a user; on the basis of the first sorting result, determining a feature value set of each commodity to be sorted that is in a preset commodity list, the feature value set at least including a target position feature value, and the target position feature value is obtained by means of performing calculation on the basis of a sorting position of each said commodity in the first sorting result and a preset display position; and on the basis of the feature value set of each said commodity in the preset commodity list, re-sorting the preset commodity list by using a preset re-sorting model, so as to obtain a second sorting result.

Abstract: Disclosed is a light source switching apparatus for a flashlight, which includes a floodlight source and a spotlight source, a lamp strip plate serves as the floodlight source, and a main lamp plate serves as the spotlight source, with a gasket with a set thickness padded in between; a lens support mounted on the floodlight source, with a lens carried thereon, the lens is trumpet-shaped, the central circular area and the outer ring area have different set cross sections, so that the floodlight source and the spotlight source in the flashlight may penetrate through different areas of the lens for realizing the integration of the spotlight and floodlight functions, and meanwhile, the operation is convenient.

Abstract: A method and system for identifying a time delay in an extraction and separation process of rare earth: a reference sequence and comparison sequences are generated based on component contents of multiple rare earth elements and multiple process variables, and then preprocessed to determine a grey correlation. A comparison sequence with a highest correlation with the reference sequence is determined. An original data matrix is formed by taking the comparison sequence as a process variable. A time-correlation data matrix is constructed based on the obtained time delay sequence, time base sequence, and original data matrix to generate a time-correlation analysis matrix. A matrix H? norm is used to quantitatively describe the characteristics of the time-correlation analysis matrix, so as to determine a time delay sequence corresponding to a maximum H? norm as a to-be-solved multi-time delay.

Abstract: The present invention belongs to the technical field of wind-induced vibration control study of bridges, and provides a dangling net cloth device for suppressing flutter of a sea-crossing bridge, i.e., a large-area dangling net cloth equipped with multiple balance weights, which is suspended below a girder by ropes and is immersed in water. When wind-induced vibration occurs on a bridge, the device is driven to move in the water, and gravity of the device as well as a huge additional mass force and an additional damping force produced by the water on the net cloth will do negative work on the girder to consume vibration energy of the bridge and effectively suppress large vibration of the bridge. The device adopts lightweight standardized components which are convenient to install, detach, transport, and store, and has the advantages of safety, reliability, economy, and practicality.