Abstract: The present invention relates to cyclopropane skeleton monophosphine ligands and preparation methods for palladium complexes thereof and an application. Specifically, trans-diaryl substituted cyclopropane skeleton monophosphine ligands are synthesized after trans-1,2-diaryl ethylene undergoing the steps of cyclopropanation reaction, debromination reaction, substitution reaction, and the like. Palladium complexes prepared by coordinating the cyclopropane skeleton monophosphine ligands with a palladium salt show very high activity in catalyzing C—N bond coupling reactions, and have good application prospects.

Abstract: A 5G system comprising at least one antenna element configured to transmit and receive 5G radio frequency signals and at least one electronic component is provided. The antenna element, the electronic component, or both, comprise a polymer composition that includes a liquid crystalline polymer that contains repeating units derived from naphthenic hydroxycarboxylic and/or dicarboxylic acids in an amount of about 10 mol. % or more. Further, the polymer composition exhibits a dielectric constant of about 5 or less and dissipation factor of about 0.05 or less at a frequency of 10 GHz.

Abstract: Provided are a solar cell and a photovoltaic module. The solar cell includes: an N-type silicon substrate, where the N-type silicon substrate has a front surface and a rear surface opposite to the front surface; a passivation layer that contains an aluminum oxide material and that is located on the front surface; a first antireflection layer, a second antireflection layer, and a third antireflection layer that are located on a side of the passivation layer away from the substrate and stacked in a direction in which the substrate points to the passivation layer, where the first antireflection layer contains a silicon nitride material, the second antireflection layer contains a silicon oxynitride material; and the third antireflection layer contains a silicon oxide material; a tunneling dielectric layer located on the rear surface; and a doped conductive layer located on the tunneling dielectric layer.

Abstract: A weeding robot and a method and apparatus for planning a weeding path for the weeding robot and a medium are provided. The method for planning a weeding path for the weeding robot includes the following steps: acquiring an image segmentation model based on neural network model training, where the image segmentation model is configured to identify and segment a weed target feature, a soil target feature and a crop target feature; and based on the weed target feature, acquiring the weed target feature by intra-camera tracking, and acquiring the weed target feature by inter-camera tracking, and planning a weeding path for a weeding robotic arm of the weeding robot, to enable the weeding robotic arm to weed according to the weeding path.

Abstract: A long-length imaging method based on digital radiography, and an image processing system and a computer-readable memory medium to implement the method. According to one respect of the invention, the long-length imaging method based on digital radiography comprises the following steps: A. determining a part of interest of an anatomy of an object; B. determining imaging parameters of digital radiography based on the part of interest, the imaging parameters at least including a plurality of specified positions of imaging components, wherein the plurality of specified positions are configured to make X-ray images captured at the plurality of specified positions by the imaging components include the part of interest of the anatomy of the object; and C. generating a long-length image in relation to the part of interest of the anatomy of the object based on the X-ray images at the plurality of specified positions.

Abstract: A circuit includes a current compensation circuit having first and second compensation inputs, and a compensation output. The first compensation input is coupled to an input voltage terminal and the second compensation input is coupled to a switching terminal. The circuit further includes a one-shot circuit having a comparator having first and second comparator inputs, and a comparator output. The first comparator input is coupled to a voltage reference terminal and the second comparator input is coupled to the compensation output. The one-shot circuit further includes a switch coupled between the second comparator input and a ground terminal and a capacitor having first and second capacitor terminals, in which the first capacitor terminal is coupled to the second comparator input and the second capacitor terminal is coupled to the ground terminal.

Abstract: The present disclosure relates to a display method and a display apparatus for image-text content, a storage medium, and a computer program product. The display method for image-text content includes: displaying image-text content in a feed, where the image-text content comprises an image and a truncated text; receiving an operation performed by a user on the image of the image-text content; and displaying a detail page of the image-text content in response to the operation performed by the user on the image of the image-text content being a specified operation, the detail page comprising the image and a full text.

Abstract: A LIDAR-to-vehicle alignment system includes a memory and alignment and autonomous driving modules. The memory stores points of data provided based on an output of one or more LIDAR sensors and localization data. The alignment module performs an alignment process including: based on the localization data; determining whether a host vehicle is turning; in response to the host vehicle turning; selecting a portion of the points of data; aggregating the selected portion to provide aggregated data; selecting targets based on the aggregated data; and based on the selected targets, iteratively reducing a loss value of a loss function to provide a resultant LIDAR-to-vehicle transformation matrix. The autonomous driving module: based on the resultant LIDAR-to-vehicle transformation matrix, converts at least the selected portion to at least one of vehicle coordinates or world coordinates to provide resultant data; and performs one or more autonomous driving operations based on the resultant data.

Abstract: Provided are a solar cell, including: a semiconductor substrate, in which a rear surface of the semiconductor substrate having non-pyramid-shaped microstructures, the non-pyramid-shaped microstructures include two or more first substructures at least partially stacked on one another, and a one-dimensional size of the surface of the outermost first substructure is less than or equal to 45 ?m; a first passivation layer located on a front surface of the semiconductor substrate; first and second tunnel oxide layers located on the non-pyramid-shaped microstructures; first and second doped conductive layers located on a surface of the first and second tunnel oxide layers, the first and second doped conductive layer has different conductive types; a second passivation layer located on a surface of the first and second doped conductive layers; and electrodes formed by penetrating through the second passivation layer to be in contact with the first and second doped conductive layers.

Abstract: The present invention belongs to the technical field of antibacterial drugs, and discloses a pyrrolylacylpiperidylamine compound and use thereof. The present invention in particular relates to a pyrrolylacylpiperidylamine compound and a pharmaceutically acceptable salt thereof, and use thereof in the preparation of a medicament for resisting infections with bacteria, mycoplasma or chlamydia.

Abstract: Use of chaperones as autophagy receptors. The inventors identify a new function of the chaperones in aggrephagy. The chaperones are as a new type of autophagy receptor regulating the clearance of aggregation-prone proteins in cell and mouse brain.

Abstract: Provided is a method for passivating a silicon-based semiconductor device and a silicon-based semiconductor device. The method includes the following steps: cutting, by using a cutting process, a preset region of the silicon-based semiconductor device, to form a first surface associated with the preset region; smoothing the first surface to adjust a surface appearance of the first surface, so that a height difference between a protrusion and a recess of a non-marginal region on the first surface is less than 20 nm; and passivating the smoothed first surface to form a first passivation layer on the first surface. The present application can reduce or avoid the problem of efficiency reduction caused by cutting a silicon-based semiconductor device and help to obtain a more efficient silicon-based semiconductor device.

Abstract: The solar cell includes a substrate having electrode regions and non-electrode regions alternatingly. The electrode regions have a first surface, the non-electrode regions have a second surface, and the first surface has a smaller roughness than the second surface. The solar cell further includes a first tunneling dielectric layer formed over the first surface, a first doped conductive layer arranged on a side of the first tunneling dielectric layer, a passivation layer formed over the second surface and the first doped conductive layer, and at least one first electrode. The at least one first electrode are arranged in the electrode regions, each of the at least one first electrode includes a connecting electrode formed over the electrode regions and multiple spot electrodes. The multiple spot electrodes are arranged below the connecting electrode and connected to the connecting electrode.

Abstract: Provided is a display substrate, including a base substrate and a plurality of pixel units arranged on the base substrate; each pixel unit includes constant voltage terminals and a dual-gate transistor; a part of an active region of each dual-gate transistor, which is located between two gates, is an intermediate part; except the pixel units closest to the first side, each pixel unit includes a compensation structure; the compensation structure is connected to one of the constant voltage terminals of the pixel unit where the compensation structure is located, and compensates for at least one dual-gate transistor of a pixel unit adjacent to the pixel unit where the compensation structure is located in a direction toward the first side; the compensation structure overlaps and is insulated from the intermediate part of the dual-gate transistor for which the compensation structure compensates.

Abstract: Provided is a battery swapping station, comprising: a battery swapping chamber, charging chambers and a first expansion compartment, wherein the battery swapping chamber is used for battery replacement for an electric vehicle; the charging chambers are located on left and right sides of a vehicle parking position in the battery swapping chamber and used for charging and discharging batteries; and the first expansion compartment is located above the battery swapping chamber, and the first expansion compartment is provided with an extension end that extends from the above of the battery swapping chamber in a running direction of the electric vehicle. The first expansion compartment enlarges the internal space of the battery swapping station, so as to provide more potential to allow the battery swapping station to have more functions.

Abstract: The present disclosure relates to a standby power supply, including: a first sub power supply configured to provide alternating current electrical energy, where the first sub power supply is connected to an input terminal of an alternating current/direct current (AC/DC) converter; the AC/DC converter configured to convert the alternating current electrical energy into direct current electrical energy, where an output terminal of the AC/DC converter is connected to an output terminal of the standby power supply; and second sub power supplies configured to provide the direct current electrical energy, where the second sub power supplies are connected to the output terminal of the standby power supply. Through the present disclosure, a standby power supply solution having high reliability and capable of meeting power consuming requirements of a load with a great change in power demand such as a wind generator may be provided.

Abstract: A system for on-vehicle camera alignment monitoring includes an on-vehicle camera in communication with a controller. The controller monitors vehicle operating parameters and camera signal parameters, and captures an image file from the on-vehicle camera. A first level analysis of the image file, the vehicle operating parameters, and the camera signal parameters is executed to detect dynamic conditions and image feature parameters that affect camera alignment. An error with one of the dynamic conditions or the image feature parameters that affects the camera alignment is detected. A second level analysis of the camera signal parameters is executed to identify a root cause indicating one of the dynamic conditions or the image feature parameters that affects the camera alignment based upon the error. A camera alignment-related fault is detected based upon the root cause, and vehicle operation is controlled based upon the camera alignment-related fault.

Abstract: An RF filter comprising a resonator element and a polymer composition is provided. The polymer composition contains an aromatic polymer and has a melting temperature of about 240° C. or more. The polymer composition exhibits a dielectric constant of about 5 or less and dissipation factor of about 0.05 or less at a frequency of 10 GHz.

Abstract: A pharmaceutical composition, including nicotinamide adenine dinucleotide (NAD) and a CD38 inhibitor in a weight ratio of 1-5:5-1, where the CD38 inhibitor is compound 78c. A pharmaceutical preparation including the pharmaceutical composition and an application of the pharmaceutical composition in the prevention and/or treatment of doxorubicin-induced cardiotoxicity are further provided.

Abstract: Methods and systems for a vehicle are provided. In one embodiment, the method includes: receiving image data defining a plurality of images associated with an environment of the vehicle; determining, by a processor, feature points within at least one image of the plurality of images; selecting, by the processor, a subset of the feature points as ground points; determining, by the processor, a ground plane based on the subset of feature points; determining, by the processor, a ground normal vector from the ground plane; determining, by the processor, the ground normal vector based on a sliding widow method; determining, by the processor, a camera to ground alignment value based on the ground normal vector; and generating, by the processor, second image data based on the camera to ground alignment value.