Abstract: An on-board charger, a DCDC converter and a control method are provided. The on-board charger includes a power factor corrector, a high-voltage direct-current converter, a low-voltage direct-current converter, and a controller. An input terminal of the high-voltage direct-current converter is connected to an output terminal of the power factor corrector. An input terminal of the low-voltage direct-current converter is connected to an output terminal of the high-voltage direct-current converter or the output terminal of the power factor corrector. An output terminal of the low-voltage direct-current converter is connected to a low-voltage battery and a low-voltage load. The low-voltage direct-current converter includes a main power transistor and a controllable switching transistor.

Abstract: A method for quickly optimizing key mining parameters of an outburst coal seam as provided includes steps of constructing a graphic basic information model of the coal mine, giving coal mine characteristic information, performing mining simulation, constructing a CNN-LSTM predicating model, obtaining changes under different mining conditions, constructing a Lorenz chaotic primer, and the like. The model can be improved with continuous breakthroughs in theory, so that the model has a strong learning ability and can adapt to the constantly changing complex geological environment. The method has very good predictability for the determination of coal seam group parameters, and can efficiently select and output a set of candidate parameters.

Abstract: An optical module includes a base, a first cover, a circuit board, a light emitting assembly and a light receiving assembly. The light emitting assembly includes a plurality of light-emitting chips and an optical multiplexer. The plurality of light-emitting chips are disposed on the first bottom plate. The optical multiplexer is disposed on the first cover and is located in a laser exit direction of the plurality of light-emitting chips. The light receiving assembly includes an optical demultiplexer and a plurality of light-receiving chips. The optical demultiplexer is disposed on the first cover. The plurality of light-receiving chips are disposed on the circuit board and are located in a laser exit direction of the optical demultiplexer.

Abstract: Provided are a lyophilized vortioxetine pamoate powder for injection and a preparation method therefor. The prepared powder for injection product has good permeability and stability, and is very suitable for industrialization.

Abstract: Methods, apparatuses and systems for a sensing deformation in a surface are disclosed herein. An example device may include a first sensor configured to mechanically couple to a first point and a second point on a surface. The first point and the second point may be located across an opening of a groove on the surface. An electrical property of the first sensor may be configured to change in response to a variation in the distance between the first point and the second point.

Abstract: The present invention discloses a display panel and a display device. The display panel includes a gate driver circuit and a plurality of driving wires. By disposing gate driver circuits with different distribution density in non-bending frame regions and adjusting corresponding driving wires wired from an output end of the gate driver circuit to a bending displaying region, normal driving of the bending displaying region can be achieved and simultaneously damages to the gate driver circuit during folding can be mitigated or obviated.

Abstract: The present disclosure provides a thin film sensor and a method for preparing a thin film sensor. The thin film sensor includes: a base substrate; a first conductive mesh on the base substrate; where the first conductive mesh includes first metal wires arranged side by side along a first direction and each extending in a second direction, and second metal wires each extending in a third direction; and the first metal wires intersect with the second metal wires; and a second conductive mesh on a side of the first conductive mesh away from the base substrate; where the second conductive mesh includes first transparent conductive wires arranged side by side along the first direction and each extending in the second direction, and second transparent conductive wires each extending in the third direction; and the first transparent conductive wires intersect with the second transparent conductive wires.

Abstract: Anti-rotation bearing assemblies for electric submersible pumps are provided. An electric submersible pump includes a plurality of centrifugal pump stages, each stage including a rotating impeller and a stationary diffuser mounted on a shaft coupled to a motor. In use, the motor rotates the shaft, which rotates the impeller within the stationary diffuser. A bearing assembly can include a bearing sleeve disposed about the shaft and a bushing disposed radially between the bearing sleeve and the diffuser. The bearing sleeve rotates with the shaft in operation, and the bushing remains stationary with the diffuser. The bushing can have an external key that is received in a key way or groove in the diffuser to act as an anti-rotation feature. In other variations, the bushing can have an eccentric or oblique profile, which can act as an anti-rotation feature.

Abstract: An optical module includes a circuit board and an optical transmitter device. The optical transmitter device includes a substrate, a spacer disposed on and electrically connected to the circuit board, a laser chip disposed on and electrically connected to the spacer, an optical fiber adapter disposed on the substrate in a light exit direction of the laser chip, a focusing lens disposed between the laser chip and the optical fiber adapter, light incident surface of the optical fiber adapter has a first inclination angle with respect to an axis of the optical fiber adapter, the axis of the optical fiber adapter being located in a plane parallel to the substrate, the optical fiber adapter is obliquely disposed on the substrate such that an axis of the internal optical fiber has a second inclination angle with respect to optical axis of the focusing lens.

Abstract: The present disclosure provides a thin film sensor and a method for preparing a thin film sensor. The thin film sensor includes: a base substrate; a first conductive mesh on the base substrate; where the first conductive mesh includes first metal wires arranged side by side along a first direction and each extending in a second direction, and second metal wires each extending in a third direction; and the first metal wires intersect with the second metal wires; and a second conductive mesh on a side of the first conductive mesh away from the base substrate; where the second conductive mesh includes first transparent conductive wires arranged side by side along the first direction and each extending in the second direction, and second transparent conductive wires each extending in the third direction; and the first transparent conductive wires intersect with the second transparent conductive wires.

Abstract: A predicting system and method for the uniaxial compressive strength of rock include a point loading strength test module, a longitudinal wave velocity test module, a rock rebound value test module and a strength prediction module, wherein the longitudinal wave velocity test module performs longitudinal wave velocity tests on the rock, and transfers the longitudinal wave velocity of the rock to the strength prediction module; the rock rebound test module performs rebound test on the rock, and transfers the rebound value of the rock to the strength prediction module; the point loading strength test module performs image acquisition on a fracture surface of the rock after being loaded and fractured by the point loading test, and calculates the area of the fracture surface; and the strength prediction module outputs a uniaxial compressive strength prediction result of the rock according to the received information and a preset prediction model.

Abstract: Provided is an array substrate including: a first base, wherein the first base is provided with a plurality of pixel regions, and the pixel region includes a white sub-pixel region and at least two color sub-pixel regions; and a plurality of photosensitive devices disposed on the first base, wherein an orthographic projection of the photosensitive device onto the first base at least partially overlaps with the white sub-pixel region. A liquid crystal display panel and a display apparatus are also provided.

Abstract: The present disclosure relates to a method for constructing a trehalose polyenzyme complex in vitro by mediation of an artificial scaffold protein, which mainly comprises the following steps: constructing a recombinant bacterium WB800n-ScafCCR for self-assembled scaffold protein module; constructing a recombinant bacterium WB800n-P43-phoD -treY-Ccdoc for self-assembled catalytic module; constructing a recombinant bacterium WB800n-P43-phoD-treZ-Ctdoc for self-assembled catalytic module; constructing a recombinant bacterium WB800n-P43-phoD-cgt-Rfdoc for self-assembled catalytic module; secretorily expressing the recombinant bacteria and self-assembling in vitro to obtain a recombinant trehalose multi-enzyme complex. The trehalose multi-enzyme complex constructed by the method of the present disclosure has a higher catalytic efficiency in preparing trehalose than that of mixed free enzymes, and the method can be used for production of high quality trehalose after immobilization with cellulose microspheres.

Abstract: The present disclosure discloses an optical module including a circuit board; a housing assembly including a light-receiving portion and a light-emitting cavity separated via a separation board and stacked one above the other, one side of the housing assembly adjacent to the circuit board being provided with a first notch through which one end of the circuit board is inserted into the housing assembly; a light-receiving assembly disposed in the light-receiving portion and electrically connected to an upper surface of the circuit board; and a light-emitting assembly disposed in the light-emitting cavity and electrically connected to a lower surface of the circuit board; a concave region is formed in the light-emitting cavity, and a laser assembly of the light-emitting assembly is arranged therein to lift the laser assembly to reduce height difference between wire bonding surface of the laser assembly and lower surface of the circuit board.

Abstract: The present disclosure discloses an optical module including: a circuit board; a housing assembly divided by a separation board into a first portion and a second portion that are stacked one above the other, wherein a light-emitting cavity is formed in the second portion, and a partition wall is provided in the first portion to separate the first portion into a light-receiving cavity and a slot, and is provided with a plurality of light-passing holes via which the light-receiving cavity is in communication with the slot; an optical fiber adapter disposed in the housing assembly and in communication with the light-receiving cavity; a light-emitting assembly arranged in the light emitting cavity and electrically connected to the circuit board, wherein heat generated by the light-emitting assembly is conducted to a surface of the housing assembly via the partition wall; and a light-receiving assembly.

Abstract: An optical module includes a shell, a circuit board and an optical transmitter device. The circuit board is disposed in the shell. The optical transmitter device is disposed in the shell, and includes a plate-shaped substrate and a laser assembly. The laser assembly is disposed on a surface of the substrate, is electrically connected to the circuit board, and is configured to emit an optical signal. The substrate is fixedly connected to an end of the circuit board.

Abstract: Provided are a set and a display apparatus. The set includes a display module, a bezel, a back housing and a system board. The bezel is sleeved over a periphery of the display module. The back housing includes a first shell on a side opposite to a back plate of the display module, and a second shell adjacent to an inner peripheral surface of the bezel. One end of the second shell is connected to an edge of the first shell, and the other end of the second shell is provided with a support portion for supporting an edge of the display module so that a reserved space for accommodating the system board is formed between the display module and the first shell, and the second shell is fixedly connected to the bezel to implement configuration and assembly of the system board, thereby improving the user experience.

Abstract: A backlight source includes light bars, adapter plate(s) and connection structures. Each light bar includes light-emitting group(s) and external connection unit(s). Each external connection unit is electrically connected to at least one light-emitting group and included at least one first electrode pair. Each adapter plate includes adapter circuits, each adapter circuit includes adapter units, each adapter unit includes at least one second electrode pair. Ends of each connection structure are electrically connected to one external connection unit and one adapter unit. All second electrode pairs of adapter units of a same adapter circuit are classified into at least one group, each group includes second electrode pairs electrically connected in series. In light-emitting groups electrically connected to adapter units of the same adapter circuit, light-emitting groups electrically connected second electrode pairs in a same group are connected in series to form a dimming region.

Abstract: A semiconductor structure including: a substrate including a plurality of conductive layers and a plurality of insulating layers stacked alternately with each other along a vertical direction of the substrate; a first conductive via structure extending from a top conductive layer of the conductive layers to a bottom conductive layer of the conductive layers and including a first capacitive structure, the first capacitive structure extending in a first conductive layer of the conductive layers; a second conductive via structure extending from the top conductive layer to the bottom conductive layer and including a second capacitive structure extending in the first conductive layer; and a third capacitive structure extending in the first conductive layer or a second conductive layer of the conductive layers, wherein the third capacitive structure forms a first mutual capacitance with the first capacitive structure and a second mutual capacitance with the second capacitive structure.

Abstract: Provided is a display panel, including an array substrate, a color filter substrate, and a back light module. The back light module includes a light source, and the light emission spectrum of the light source has a first blue peak and a second blue peak. The color filter substrate is provided with multiple pixel units which are periodically and repeatedly disposed, and at least one pixel unit includes a red sub-pixel, a green sub-pixel, a first blue sub-pixel and a second blue sub-pixel. The first blue sub-pixel and the second blue sub-pixel have different transmittance spectrums; a peak wavelength of a transmittance spectrum of the first blue sub-pixel matches a peak wavelength of the first blue peak of the light source, and a peak wavelength of a transmittance spectrum of the second blue sub-pixel matches a peak wavelength of the second blue peak of the light source.