Abstract: The present application provides an under-screen camera assembly, including: an organic light-emitting diode display screen, a display area of which includes an under-screen camera area and a non-under-screen camera area; and a camera module, which is arranged locate at a rear end of the under-screen camera area, the camera module includes a lens barrel, a lens group and a photosensitive assembly, wherein the lens barrel includes: a lens group installation section, the lens group being installed on an inner side face of the lens group installation section; and an extension section, which is formed to extend upwards from the top of the lens group installation section, and a top surface of the extension section bearing against a bottom surface of the organic light-emitting diode display screen. The present application further provides a corresponding terminal device.

Abstract: This application relates to the field of vehicles, and specifically, to a heat management apparatus, a control method for the heat management apparatus, and a vehicle. The heat management apparatus includes: a first heat exchange unit, where the first heat exchange unit is provided with an energy storage material, and the first heat exchange unit is connected to a battery cell by using a heat conducting pipe; and a second heat exchange unit including a first cooling pipe internally provided with a refrigerant, where at least a part of the first cooling pipe is configured in the energy storage material. The heat management apparatus can meet heat dissipation and heating requirements of a battery in various working conditions, fully utilize energy of the battery, reduce power consumption of the battery, and reduce a safety risk caused due to an excessively high temperature of a battery cell.

Abstract: The technology described herein is directed to structural analysis, particularly of small proteins via cryo-EM.

Abstract: The present disclosure belongs to the field of livestock molecular biotechnology, and provides kits and methods for pedigree division and paternity testing of domestic pigs. The kits and methods specifically select 14 SSR loci of domestic pigs, especially Anqing six-end-white pigs, and synthesize primers for corresponding loci. Through capillary electrophoresis detection of the ear tissue DNA of 98 Anqing six-end-white pigs, the count of effective alleles, heterozygosity, polymorphism information content, and genetic distance, and exclusion probability at each locus are calculated, the pedigree division of domestic pigs, especially Anqing six-end-white pigs, and paternity testing are conducted. The cumulative exclusion probability of 14 microsatellite loci is 99%.

Abstract: The disclosure provides compositions containing polynucleotides that encode a stereocilin protein under regulatory control of an outer hair cell-specific promoter, as well as two-vector systems containing the same, that can be used to promote expression of stereocilin specifically in outer hair cells. Additionally, the compositions described herein may be used for the treatment of subjects having or at risk ofdeveloping hearing loss, such as hearing loss associated with a mutation in stereocilin.

Abstract: The disclosure relates to the field of nuclear power energy technology, and specifically relates to a screening method for an optimal zinc ion concentration in the primary loop during the hot functional test of a nuclear power plant. Unlike the study of zinc injection in primary loop during pre-critical and power operation of a nuclear power plant, the disclosure is directed to the study of optimal zinc injection concentration during the hot functional test. Specifically, in the disclosure, a hot functional test environment is simulated by an autoclave, and the optimal zinc ion concentration range is identified by impedance experiments on test specimens with film formation in the autoclave. The method is highly representative of tests, with clear data trends, high experimental visibility and evaluability, which provides a screening method for the optimal zinc ion concentration in the primary loop during the hot functional test of a nuclear power plant.

Abstract: Provided is a computer-implemented method for authenticating a user. The method includes registering a plurality of user accounts for a plurality of users based at least partially on user information and account data for each user of the plurality of users, the account data for each user including an account identifier associated with a portable payment device, generating an identity score for each user, registering a plurality of provider accounts for a plurality of third-party service providers based at least partially on third-party service provider data, receiving a request to authenticate a user of the plurality of users, receiving user credentials corresponding to a user account of the user, validating the user credentials based at least partially on the identity score of the user, and communicating an authentication response message to the third-party system in response to validating the user credentials.

Abstract: A method for judging freshness of cultured fish product based on eye image recognition is provided, which relates to the field of image processing and includes the following steps: obtaining eye area and eye center point of each cultured fish product; obtaining a first data category and a second data category of each gray scale change sequence according to each gray scale change sequence of each eye area; calculating a first mean value and a second mean value of each gray scale change sequence; obtaining the fish eye turbidity of each eye area according to the first mean value and the second mean value; obtaining the fish eye plumpness of each eye area according to the first data category and the second data category; and obtaining the freshness of each cultured fish product according to the fish eye turbidity and fish eye plumpness in each eye area.

Abstract: A device for measuring a total gas content of a primary circuit of a PWR nuclear power plant includes a shielding protective cover, and a sampling assembly and a sample measuring assembly that are detachably connected to the shielding protective cover; the sampling assembly includes a sampling bottle; a valve connected to one mouth of the sampling bottle through a pipeline; a second valve connected to the other mouth of the sampling bottle through a pipeline; a first quick female connector connected with the first valve through a pipeline; a second quick female connector connected to the second valve through a pipeline; a balance pipeline, one end being connected to the pipeline between the first valve and the first quick female connector, and the other end being connected to the pipeline between the second valve and the second quick female connector.

Abstract: Provided is an under-display camera assembly, including: an organic light-emitting diode display screen, a display region of which includes an under-display camera region and a non-under-display camera region, wherein a pixel density of the under-display camera region is set to be less than a pixel density of the non-under-display camera region; and a camera module, wherein the optical axis thereof is perpendicular to the surface of the organic light-emitting diode display screen, and the camera module is located at a rear end of the under-display camera region. Further provided is a corresponding terminal device.

Abstract: A method and a system for detecting heavy metal ions are provided. The method includes: fixing a pre-manufactured micro-electrode chip on a connecting device, connecting the connecting device to an electrochemical workstation, carrying out setting before detection on the electrochemical workstation, the micro-electrode chip including a counter electrode and a working electrode, carrying out graphene modification treatment on the counter electrode in advance, and carrying out bismuth film modification treatment on the working electrode in advance; and carrying out acid pretreatment on an aqueous solution to be detected, dropwise adding 5 µL to 100 µL of a treated aqueous solution to a working area of the pre-manufactured micro-electrode chip, measuring an I-V curve by the electrochemical workstation subjected to the setting before detection, and determining species and concentrations of heavy metal ions in the aqueous solution according to peak values of voltage and current of the I-V curve.

Abstract: The technology described herein is directed to structural analysis, particularly of small proteins via cryo-EM.

Abstract: A method for preparing a modified polypropylene film, the modified polypropylene film comprising a polypropylene film; and, an oxide layer and/or nitride layer, each of which has a thickness of 20-500 nm, on a surface of the polypropylene film; the method comprising: depositing the oxide layer or nitride layer on a surface of the polypropylene film by an Atomic Layer Deposition (ALD) process to obtain the modified polypropylene film; wherein the step of depositing the oxide layer or nitride layer comprises: placing the polypropylene film in an ALD reaction chamber; vacuumizing; heating up; introducing a carrier gas; and, passing at least two precursors into the reaction chamber alternately for reaction, resulting in the modified polypropylene film; wherein the precursors comprise a precursor for providing a metal element or Si, and a precursor for providing an oxygen or nitrogen element.

Abstract: The present disclosure belongs to the field of livestock molecular biotechnology, and provides kits and methods for pedigree division and paternity testing of domestic pigs. The kits and methods specifically select 14 SSR loci of domestic pigs, especially Anqing six-end-white pigs, and synthesize primers for corresponding loci. Through capillary electrophoresis detection of the ear tissue DNA of 98 Anqing six-end-white pigs, the count of effective alleles, heterozygosity, polymorphism information content, and genetic distance, and exclusion probability at each locus are calculated, the pedigree division of domestic pigs, especially Anqing six-end-white pigs, and paternity testing are conducted. The cumulative exclusion probability of 14 microsatellite loci is 99%.

Abstract: The disclosure provides polynucleotides containing outer hair cell-specific promoters, as well as vectors containing the same, that can be used to promote expression of a transgene specifically in outer hair cells. The polynucleotides described herein may be operably linked to a transgene, such as a transgene encoding a therapeutic protein, so as to promote outer hair cell-specific expression of the transgene. The polynucleotides described herein may be operably linked to a therapeutic transgene and used for the treatment of subjects having or at risk of developing hearing loss.

Abstract: A device for measuring a total gas content of a primary circuit of a PWR nuclear power plant includes a shielding protective cover, and a sampling assembly and a sample measuring assembly that are detachably connected to the shielding protective cover; the sampling assembly includes a sampling bottle; a valve connected to one mouth of the sampling bottle through a pipeline; a second valve connected to the other mouth of the sampling bottle through a pipeline; a first quick female connector connected with the first valve through a pipeline; a second quick female connector connected to the second valve through a pipeline; a balance pipeline, one end being connected to the pipeline between the first valve and the first quick female connector, and the other end being connected to the pipeline between the second valve and the second quick female connector.

Abstract: The present invention provides a terminal device, and a display screen thereof and an application thereof. The terminal device includes a terminal device body, a display screen, and a camera module. The display screen is provided with a light through hole. The camera module is located below the display screen, and has a front end. The front end of the camera module is fixedly attached to the display screen and the camera module is aligned with the light through hole of the display screen, so that light outside the display screen is received by the camera module via the light through hole.

Abstract: The present application provides an under-display camera assembly, including: an organic light-emitting diode display screen, wherein a display region of said display screen includes an under-display camera region and a non-under-display camera region, and a pixel density of the under-display camera region is configured to be less than that of the non-under-display camera region; and a camera module located at a rear end of the under-display camera region, and including an iris diaphragm, a lens group, and a photosensitive component, wherein the iris diaphragm is provided between a bottom surface of a pixel light-emission layer and a top surface of the foremost lens of the lens group, and has a closed state and a transmission state. The iris diaphragm, in the closed state, reflects light from the display screen or emits light by itself from the front of the display screen, and the transmission state refers to a state in which a light path of the camera module is opened.

Abstract: The present application relates to a terminal device and a display screen thereof, and a preparation method for the display screen, wherein the display screen includes a cover plate layer, a touch layer, a polarizing layer, an encapsulation layer, a pixel layer and a circuit driving layer from top to bottom. In particular, the display screen further includes a microlens layer formed above the pixel layer, wherein the microlens layer corresponds to each gap between pixels in the pixel layer, and is used to converge light to each of the gaps before the light passes through the pixel layer via the gaps so as to increase the light transmittance of the display screen.

Abstract: The present application provides an under-screen camera assembly, including: an organic light-emitting diode display screen, a display area of which includes an under-screen camera area and a non-under-screen camera area; and a camera module, which is arranged locate at a rear end of the under-screen camera area, the camera module includes a lens barrel, a lens group and a photosensitive assembly, wherein the lens barrel includes: a lens group installation section, the lens group being installed on an inner side face of the lens group installation section; and an extension section, which is formed to extend upwards from the top of the lens group installation section, and a top surface of the extension section bearing against a bottom surface of the organic light-emitting diode display screen. The present application further provides a corresponding terminal device.