Abstract: A modified tunnel oxide layer and a preparation method, a TOPCon structure and a preparation method, and a solar cell are provided. The modified tunnel oxide layer is SiOx subjected to plasma surface treatment, and a Si4+ content in the SiOx is greater than or equal to above 18%. The density of the interface state subjected to plasma surface treatment decreases, and compared with the silicon oxide layer prepared in the prior arts, boron has a low diffusion rate in the modified silicon oxide layer and hence the damaging effect of the boron on the tunnel oxide layer is reduced effectively, thereby improving the integrity of the silicon oxide layer and maintaining chemical passivation effect. The modified tunnel oxide layer significantly increases the performance indexes of the TOPCon structure.

Abstract: Methods, devices, and systems for a dynamic threshold based echo signal detection for LiDARs are provided. In one aspect, a detection method includes: determining at least one feature parameter that represents a working condition of a LiDAR; determining an echo signal collected by the LiDAR, the echo signal including at least a noise signal; selecting a processing mode for the echo signal based on the at least one feature parameter, detecting the noise signal in the processing mode, and determining a detection threshold based on the noise signal; and comparing the echo signal with the detection threshold, and outputting a target signal reflected from a target object in the echo signal.

Abstract: A display panel and a display device. A display panel includes: a base plate, an isolation structure with isolation openings and first openings, first light-emitting units and second light-emitting units, first electrodes including first sub-electrodes and second sub-electrodes, and second electrodes. An orthographic projection of the second electrode on the base plate is offset from an orthographic projection of the first opening on the base plate. The first light-emitting units and the second light-emitting units are disposed in the isolation openings and in the first openings, respectively. The first sub-electrodes are disposed at a side of the first light-emitting units away from the base plate and the second sub-electrodes are disposed in the first openings and located at a side of the second light-emitting units away from the base plate.

Abstract: A water injection regulation system for water injection well has a float limiting device (A) provided at a wellhead configured to release and capture a float; a ground water delivery device (B) having an outlet in communication with the float limiting device (A), and is configured to inject water into well through the float limiting device (A); and a plurality of downhole water distribution devices, each arranged in a target layer and outside a sidewall of a water-injection string, and configured to monitor production data of the target layer. The float is configured to receive a water distribution instruction to regulate water distribution of each downhole water distribution device, enter the water-injection string (11) with water flow, and float upwards to the wellhead after completing data collection. Each downhole water distribution device is configured to exchange the production data with the water distribution instruction carried by the float.

Abstract: The present disclosure relates generally to machine learning techniques, and more specifically to machine learning techniques for generating synthetic spatial omics data based on histopathology image data. An exemplary system for generating synthetic spatial omics images comprises: one or more processors; a memory; and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including instructions for: receiving a histopathology image depicting a diseased region of interest of an input tissue sample; and generating a synthetic spatial omics image depicting one or more stained structures of interest within the diseased region of interest by inputting the histopathology image into a generator of a trained generative adversarial network (GAN) model.

Abstract: A touch layer group includes first and second touch electrodes, first and second touch lines and a shielding line. The first touch lines are electrically connected to the first touch electrodes, respectively. The second touch lines are electrically connected to the second touch electrodes, respectively. The first and second touch lines each extend to a peripheral region. The shielding line is located in the peripheral region and located between a first touch line and a second touch line that are adjacent to each other. The shielding line includes at least one first line segment and at least one second line segment. Each second line segment includes shielding sub-lines; shielding sub-lines of a second line segment are electrically connected to a first line segment, and a width of a region where the shielding sub-lines of the second line segment are located is greater than a width of the first line segment.

Abstract: The disclosure belongs to the technical field of well completion engineering in oil and gas engineering, and particularly relates to a high-flow-conductivity proppant and its preparation method. The high-flow-conductivity proppant includes dumbbell-shaped framework granules and an oil-soluble film coating layer coated on the surfaces of the framework granules; the oil-soluble film coating layer melts when meeting oil at the temperature of 30-120° C. The high-flow-conductivity proppant prepared by the method has low bulk density, and the problems that the traditional proppant cannot be transported to the far end of a crack, has poor flow conductivity and the like can be effectively solved.

Abstract: A user equipment (UE) is configured to use multiple beams for transmission or reception. The UE receives, from a base station, at least one medium access control (MAC) control element (CE) that indicates multiple activated transmission configuration indicator (TCI) states, receives, from the base station, at least one downlink control information (DCI) indicating a subset of TCI states of the multiple activated TCI states, wherein the MAC CE and the DCI are part of a TCI configuration, and wherein the subset of TCI states corresponds to multiple transmission and reception points (TRPs) of a wireless network, maps the subset of TCI states to the corresponding multiple TRPs based on the TCI configuration and selects a beam used for transmission or reception based on one mapped TCI state of the mapped subset of TCI states.

Abstract: A method for processing a model operator includes: determining an operator set for model networking, wherein the operator set comprises a plurality of operators; determining a storage amount occupied by an output tensor of each operator in the operator set and a computation time period consumed in a forward computation of each operator in the operator set; and determining a first operator participating in recomputation in a model from the operator set, based on the storage amounts and the computation time periods of the plurality of operators.

Abstract: A button cell includes an electrode assembly, a first tab, and a second tab. The electrode assembly includes a first electrode plate and a second electrode plate; the first electrode plate and the second electrode plate are stacked and wound in a spiral shape around a central axis. A first current collector of the first electrode plate includes a first starting edge and a first ending edge. A first connection segment of the first tab has a first centerline; a second connection segment of the second tab has a second centerline; viewed from the first direction, a line connecting the first centerline and the central axis is a third virtual line, a line connecting the second centerline and the central axis is a fourth virtual line; an acute angle formed between the third virtual line and the fourth virtual line is ?1, where 90°??1?180°.

Abstract: The present disclosure provides a tripod with an adjustable angle. The tripod includes a tripod body with a limiting surface, support legs equipped with a movable rotation-limiting assembly that interacts with the limiting surface, and a rotational structure. The tripod body and support legs are rotationally connected via the rotational structure. In a first position, the rotation-limiting assembly disengages from the limiting surface, allowing the support legs to rotate relative to the tripod body. In a second position, the rotation-limiting assembly locks onto the limiting surface, securing the support legs to the tripod body. The rotational structure works in coordination with the limiting surface, limiting components, a button mechanism, and first and second reset mechanisms to enable one-touch unlocking and automatic locking of the tripod, enhancing operational convenience.

Abstract: A light-emitting diode and a light-emitting device are provided, relating to the field of semiconductor manufacturing, including a substrate, an epitaxial structure and a Bragg reflective layer. The Bragg reflective layer includes a first film stack and a second film stack alternately and repetitively arranged. The first film stack and the second film stack both include a first material layer with a first refractive index and a second material layer with a second refractive index, the first material layer and the second material layer are alternately stacked repeatedly, and the first refractive index is lower than the second refractive index. In the first film stack, an optical thickness of the first material layer is greater than that of the second material layer. In the second film stack, an optical thickness of the first material layer is less than that of the second material layer.

Abstract: The present application pertains to the technical domain of photography equipment, specifically addressing a cart for photographing. This cart for photographing comprises a cart frame and a storage platform. The cart frame incorporates a plurality of support members, and the storage platform is affixed to these support members. The storage platform consists of a base plate and upright plates. These upright plates are arranged continuously around the base plate, enclosing storage slots designed for supporting photography accessories. Each of these upright plates is equipped with a plurality of connection interfaces of varying specifications, facilitating the installation of photography accessories. This configuration effectively augments the storage capacity of the cart for photographing. Photography accessories can be installed on the cart for photographing via these connection interfaces, allowing them to be suspended outside or above the cart.

Abstract: There is provided an inflatable product, comprising a first wall and a second wall arranged opposite the first wall, the first wall and the second wall defining an air chamber after the inflatable product is inflated, the air chamber defining a first direction parallel to the first wall and a second direction non-parallel to the first wall. The inflatable product further comprises an internal tensioning structure including a plurality of tensioning strands generally extending as a whole in the first direction; a plurality of first retention strips intersecting the plurality of tensioning strands and affixing the plurality of tensioning strands to the first wall; and a plurality of second retention strips intersecting the plurality of tensioning strands and affixing the plurality of parallel strings to the second wall. Also disclosed is a system and method for efficiently manufacturing the inflatable product with the included tensioning structure.

Abstract: Structural variants of 2D polymers and composites thereof are described.

Abstract: Provided is a method for constructing a gE gene-deleted pseudorabies virus (PRV) strain using an adenine base editor (ABE) and use thereof. The method includes: designing an sgRNA sequence using the ABE with a start codon of the gE gene in a PRV as a target site, ligating an enzyme-digested fragment to a double-stranded DNA fragment with sticky ends to obtain a ligation product; and transforming the ligation product into a competent cell to allow plate screening and culture, selecting a resulting positive bacterial strain to allow expanded culture, and extracting a plasmid from a resulting positive bacterial solution; and transferring the plasmid into a target cell to allow the transfection for 24 h, collecting a resulting virus liquid, and centrifuging the virus liquid to collect a resulting supernatant.

Abstract: Provided are a coating composite, and a coated abrasive and a preparation method thereof. The coating composite includes the following components in parts by mass: 100 parts to 120 parts of borate glass, 50 parts to 60 parts of aluminium oxide, 100 parts to 120 parts of potash feldspar, 10 parts to 20 parts of cryolite, and 10 parts to 20 parts of calcium fluoride.

Abstract: The present invention discloses a polyester, a preparation method therefor and use thereof. The polyester includes repeating units derived from the following components: a first component A, based on the total molar weight of the first component A, including: a1) 81-100 mol % of succinic acid, or an ester derivative thereof or an anhydride derivative thereof, and a2) 0-19 mol % of a dicarboxylic acid other than succinic acid, or an ester derivative thereof or an anhydride derivative thereof; a second component B: 1,4-butanediol; and a third component C: a dimer(1,4-butanediol); based on the total molar weight of the first component A, the molar content of the repeating unit —CH2CH2CH2CH2—O— in the third component C is 0.05-3.0 mol %. In the present invention, the molar content of the repeating unit —CH2CH2CH2CH2—O— in dimer(1,4-butanediol) is controlled to 0.05-3.0 mol %, and thus, the resin color of the polyester can be effectively improved.

Abstract: Apparatus and methods are provided for CSI enhancement for multi-TRP coherent joint transmission. A user equipment (UE) receives signals from a plurality of transmission and reception points (TRPs). The UE determines, based on the signals, multiple TRP (multi-TRP) coherent joint transmission (CJT) channel state information (CSI) report information for a codebook based on a spatial basis selection matrix, a combination coefficient matrix, and a frequency basis selection matrix. The spatial basis selection matrix is layer common, polarization common, and TRP independent. The UE reports, to one or more of the plurality of TRPs, the multi-TRP CJT CSI report information.

Abstract: This disclosure relates to techniques for periodic reference signal activation and deactivation in a wireless communication system. Information configuring periodic reference signals may be received by a wireless device. Information deactivating some or all of the periodic reference signals may be received by the wireless device. The information deactivating some or all of the periodic reference signals may be received using different signaling type than the information configuring the periodic reference signals.