Abstract: The disclosure discloses a polycrystalline diamond composite sheet having a continuous gradient transition layer and a 3D printing preparation method thereof. The polycrystalline diamond composite sheet consists of a polycrystalline diamond layer, a continuous gradient transition layer, and a cemented carbide substrate from top to bottom, in which the continuous gradient transition layer consists of diamond and cemented carbide. Along a direction from the cemented carbide substrate to the polycrystalline diamond layer, a content of the cemented carbide in the continuous gradient transition layer decreases from 100% to 0, and a content of the diamond increases from 0 to 100%. By designing and combining the continuous gradient transition layer with 3D printing technology, the disclosure realizes a continuous change in the two materials of diamond and cemented carbide, thereby eliminating the sudden change interface of the materials inside the diamond composite sheet.

Abstract: The present invention provides a phosphonic acid compound and a prodrug thereof, and preparation methods for and uses of the phosphonic acid compound and the prodrug thereof. Specifically, the present invention provides a compound of formula (I) or formula (I-A), wherein the compound of formula (I-A) is a prodrug form of the compound of formula (I). Upon experimental verification, the phosphonic acid compound of the present invention has good ENPP1 kinase inhibition activity, and can be used as a therapeutic agent for ENPP1-related diseases, and the phosphonic acid compound has good metabolic stability in-vivo. In addition, the phosphonate or amide prodrug compound provided by the present invention has relatively high oral bioavailability, and can overcome the defect that a phosphonic acid original drug compound cannot be taken orally.

Abstract: A method for determining a direction and a distance of a metallogenic pluton of a skarn deposit with a garnet includes: collecting a sample; performing petrographic observation on the sample and designing an experimental area; computing a parameter; building a model; setting a parameter range; optimizing the parameters of the three models through a grid search method, and determining an optimal model and corresponding parameters a?, b and c through repeated circulative iteration and by taking a minimum R as a limit condition; and substituting data of all sampling points into the optimal model, computing D of each sampling point, drawing a circle with a corresponding sampling point as a center and D as the radius, determining an intersection point of all circles as coordinates of the metallogenic pluton, and performing delineation with R as a buffer area of the metallogenic pluton.

Abstract: The disclosure discloses a polycrystalline cubic boron nitride composite sheet having a continuous gradient structure and a preparation method thereof. The polycrystalline cubic boron nitride composite sheet consists of a cemented carbide substrate, a continuous gradient layer, and a CBN layer from bottom to top. The continuous gradient layer contains cemented carbide and CBN, a content of CBN increases in continuous gradient from bottom to top, while a content of the cemented carbide decreases in continuous gradient from bottom to top. A volume fraction D of CBN and a volume fraction M of cemented carbide in the continuous gradient layer both satisfy exponential gradient functions. At the same time, the disclosure uses direct ink writing 3D printing technology with slurry to realize the preparation of the polycrystalline cubic boron nitride composite sheet having the continuous gradient structure.

Abstract: Display panel and display device are provided. The display panel includes a display area and a non-display area. The non-display area includes a bending area and a first area. The first area is located on a side of the bending area away from the display area. The display panel comprises a substrate, a driving array layer disposed on a side of the substrate, and a touch function layer disposed on a side of the driving array layer away from the substrate. The driving array layer includes a first metal layer. In the first area, the first metal layer includes a plurality of first touch signal lines and a plurality of first fixed potential signal lines. At least one first fixed potential signal line of the plurality of first fixed potential signal lines is disposed between two adjacent first touch signal lines of the plurality of first touch signal lines.

Abstract: An FXR small molecule agonist and a preparation method therefor and a use thereof, having a structure as shown in formula (I). The compound represented by formula (I) has FXR agonistic activity and is capable of preparing drugs for treatment of FXR-related diseases.

Abstract: The present disclosure provides an identity recognition system for a terminal. The system includes: an obtaining device configured to obtain pre-stored biometric information corresponding to a user within a preset range of the terminal; a biometric library configured to maintain the obtained pre-stored biometric information; a collection device configured to collect first biometric information of the user; and a recognition device configured to recognize the first biometric information in the biometric library, and decide to enable or disable one or more functions or components of the terminal according to a recognition result. The present disclosure further provides an identity recognition method, a computer storage medium and a terminal.

Abstract: Disclosed is a heating device, including a first and second ends of an indoor water supply pipe communicated with a main water supply pipe and a water supply end of a radiator; a valve, a first temperature sensor, a heating and control module and a third temperature sensor arranged between the first and second ends; two ends of the heating and control module connected with a bypass pipe; a first and second ends of an indoor return water pipe communicated with a main return water pipe and a return water end of the radiator; a three-way valve and a second temperature sensor arranged between the first end and the second end of the indoor return water pipe; and a first and second ends of the water pump communicated with a third end of the three-way valve and the indoor water supply pipe.

Abstract: Disclosed is a heating device, including a first and second ends of an indoor water supply pipe communicated with a main water supply pipe and a water supply end of a radiator; a valve, a first temperature sensor, a heating and control module and a third temperature sensor arranged between the first and second ends; two ends of the heating and control module connected with a bypass pipe; a first and second ends of an indoor return water pipe communicated with a main return water pipe and a return water end of the radiator; a three-way valve and a second temperature sensor arranged between the first end and the second end of the indoor return water pipe; and a first and second ends of the water pump communicated with a third end of the three-way valve and the indoor water supply pipe.

Abstract: The present disclosure provides an identity recognition system for a terminal. The system includes: an obtaining device configured to obtain pre-stored biometric information corresponding to a user within a preset range of the terminal; a biometric library configured to maintain the obtained pre-stored biometric information; a collection device configured to collect first biometric information of the user; and a recognition device configured to recognize the first biometric information in the biometric library, and decide to enable or disable one or more functions or components of the terminal according to a recognition result. The present disclosure further provides an identity recognition method, a computer storage medium and a terminal.

Abstract: A device for moving one or more vehicle-mounted objects and a vehicle having the same are provided. The device comprises: a housing; a cover; at least one pivot for adjusting the cover, the at least one pivot disposed in the housing and comprises a first end and a second end, wherein the first end of the at least one pivot is coupled with the cover; and a box assembly disposed in the housing, the box assembly being movable between a first position away from the opening and a second position near the opening. The box assembly is coupled with the second end of the at least one pivot, wherein the cover exposes at least a part of the opening when the box assembly is at the second position, and wherein the cover covers at least a part of the opening when the box assembly is at the first position.

Abstract: A device for moving one or more vehicle-mounted objects and a vehicle having the same are provided. The device comprises: a housing; a cover; at least one pivot for adjusting the cover, the at least one pivot disposed in the housing and comprises a first end and a second end, wherein the first end of the at least one pivot is coupled with the cover; and a box assembly disposed in the housing, the box assembly being movable between a first position away from the opening and a second position near the opening. The box assembly is coupled with the second end of the at least one pivot, wherein the cover exposes at least a part of the opening when the box assembly is at the second position, and wherein the cover covers at least a part of the opening when the box assembly is at the first position.